TWI672680B - Power line safety warning device - Google Patents

Abstract

The invention discloses a power line safety warning device, which comprises a first power line communication device, at least one second power line communication device and at least one electricity meter. The first power line communication device and the second power line communication device are respectively connected to the beginning end of the power line and the terminal, and the electricity meter connects the load and the second power line communication device to measure the load energy value of the load. The first power line communication device receives the power line signal to retrieve its initial power value. The first power line communication device determines the usage state of the load according to the initial power value and the load power value, or judges the quality of the power line according to the terminal power value of the power line signal at the terminal of the power line, when the usage state of the load is poor or the quality of the power line is poor , issued a warning signal to prevent the fire from happening early.

Description

Power line safety warning device

The present invention relates to a warning device, and more particularly to a power line safety alert device.

Accidents caused by electrical products can be subdivided into household appliances, wiring components, circuit wiring, electrical facilities and other non-electrical equipment. Most electrical fires are still caused by indoor wiring, power cords, power cords or extension cords of electrical appliances. The main mechanism of fire caused by power wiring is short circuit of power supply, breakage of power line caused by flashover of the line, and high temperature caused by overload of power line. The high temperature and short-term spark caused by the power cord may cause burning of the insulated coated wire and surrounding flammable materials. If there is no fire warning device, personnel casualties and property losses will be inevitable.

Existing fire fighting equipment, such as carbon dioxide fire extinguishers, foam fire extinguishers, automatic powder fire extinguishers, automatic sprinkler system smoke detectors and temperature detectors, wherein the smoke detector and temperature detector are set to be used in the event of a fire. Detecting changes in air quality and temperature in a fixed space in the room, and issuing warnings early to fight for fire or escape time to reduce casualties. However, when a fire occurs, there will be casualties and property damage. Even if the existing fire-fighting equipment is used, the time of the fire can only be shortened, but the probability of such an event cannot be greatly reduced because the power line is short-circuited and jumped. Fires do not necessarily occur in the early stages of a fire.

Accordingly, the present invention has been made in view of the above-mentioned problems, and provides a power line safety alert device to solve the problems caused by the prior art.

The main object of the present invention is to provide a power line safety warning device, which is to monitor the change of the power line signal on the terminal of the power line for a long time, to determine the damage condition of the power line, thereby preventing the occurrence of fire, and simultaneously monitoring the load energy value for a long time. Avoid sudden failure of the load due to aging, and thus loss of capacity.

To achieve the above objective, the present invention provides a power line safety warning device including a first power line communication device, at least one second power line communication device, and at least one electricity meter. The first power line communication device is connected to the beginning of the power line. The power line has at least one terminal. The first power line communication device receives the power line signal to capture at least one initial power value, and the first power line communication device transmits the power line signal to the power line. The second power line communication device and the at least one load are connected to at least one terminal of the power line, and receive the power line signal at the at least one terminal with the at least one load, and the at least one load generates at least one load energy value according to the power line signal of the at least one terminal. The electric meter is electrically connected to the at least one load and the at least one second power line communication device, and measures at least one load electric energy value, and the at least one initial electric power value corresponds to the at least one load electric energy value. The second power line communication device controls the meter to return the load energy value, and the first power line communication device and the second power line communication device perform the first mode or the second mode. In the first mode, the second power line communication device carries at least one load energy value on the power line signal to transmit at least one load power value to the first power line communication device, where the first power line communication device utilizes at least one load energy value and at least An initial power value calculates a first fire risk potential index, and the first power line communication device generates a first warning signal according to the first fire risk potential index and a threshold. In the second mode, the first power line communication device carries at least one initial power value on the power line signal to transmit at least one initial power value to the at least one second power line communication device, and the at least one second power line communication device utilizes at least one load Calculating a second fire risk potential index with the electric energy value and the at least one initial power value, and transmitting the same to the power line signal for transmitting to the first power line communication device, the first power line communication device generating the first according to the second fire risk potential index and the threshold value Second warning signal.

In an embodiment of the present invention, the load energy value is a plurality of values, and the initial power value is also plural. The first power line communication device generates a complex first ratio by using all the initial power values and their corresponding load energy values, and The noise of the average of all the first ratios is filtered out to generate a first fire risk potential index. The first power line communication device generates a first warning signal when the first fire risk potential index is greater than a threshold. The second power line communication device generates a second ratio by using all of the initial power values and their corresponding load energy values, and filters out the noise of the average of all the second ratios to generate a second fire risk potential index. When the second fire risk potential index is greater than the threshold, the first power line communication device generates a second warning signal.

In an embodiment of the invention, the power line safety warning device further includes a power distribution panel electrically connected to the first power line communication device to provide the power line signal to the first power line communication device.

In an embodiment of the present invention, the number of the second power line communication devices is plural, the number of the loads is plural, the number of the terminals is plural, and the number of the electric meters is plural, and all the terminals are respectively connected to all the second power line communication. The devices are connected to all the loads, and all the meters are electrically connected to all the loads, and are electrically connected to all the second power line communication devices. The first power line communication device generates a control command corresponding to at least one of all the second power line communication devices, and is carried on the power line signal to broadcast a control command to all the second power line communication devices, and the second power line communication corresponding to the control command The device controls the meter to return the load energy value according to the control command.

In an embodiment of the invention, the first power line communication device further includes a display, a first processor and a first power line communication module. The first processor is electrically connected to the display and receives the power line signal to capture the initial power value, the first processor presets the threshold, and the first processor generates the control command. The first power line communication module is connected to the beginning of the power line and electrically connected to the first processor. The first processor transmits the power line signal to the power line by using the first power line communication module, and the first power line communication module carries the control command on the power line signal. . In the first mode, the first processor receives the load energy value by using the first power line communication module, and the first processor calculates the first fire risk potential index by using the load power value and the initial power value, and according to the first fire risk potential index The first warning signal is displayed with the threshold control display. In the second mode, the first processor uses the first power line communication module to carry the initial power value on the power line signal, and uses the first power line communication module to receive the second fire risk potential index, the first processor according to the second The fire risk potential index and the threshold control display display a second warning signal.

In one embodiment of the invention, the display is a touch display.

In an embodiment of the invention, the first processor controls the display to display the third warning signal when the load energy value or the second fire risk potential index is not received within the preset time period after the control command is generated.

In an embodiment of the present invention, each of the second power line communication devices further includes at least one second power line communication module and a second processor. The second power line communication module is connected to the corresponding terminal to receive the power line signal. The second processor is electrically connected to the corresponding electric meter and the second power line communication module. When the second processor receives the control command by using the second power line communication module, the second processor controls the electric meter to return the load electric energy value according to the control instruction. . In the first mode, the second processor carries the load energy value on the power line signal. In the second mode, the second processor controls the second power line communication module to return the initial power value, and the second processor calculates the second fire risk potential index by using the load energy value and the initial power value, and uses the The second power line communication module is mounted on the power line signal.

In an embodiment of the invention, the power line is a single-phase power line, and the power line signal is a single-phase power line signal.

In an embodiment of the invention, the power line is a three-phase power line, and the power line signal is a three-phase power line signal.

The invention also provides a power line safety warning device, which comprises a first power line communication device and at least one second power line communication device. The first power line communication device is connected to the beginning of the power line. The power line has at least one terminal, and the first power line communication device receives the power line signal and transmits the power line signal to the power line. The at least one second power line communication device and the at least one load are connected to at least one terminal of the power line, and the at least one load receives the power line signal at the at least one terminal, and the at least one second power line communication device utilizes at least one of the power line signals of the at least one terminal The first terminal power value calculates at least one Fire Potential Index (FPI) and is carried on the power line signal for transmission to the first power line communication device, and the first power line communication device is based on the fire risk potential index and the threshold Generating at least one first warning signal.

In an embodiment of the present invention, the first terminal power value is a plurality of, and the second power line communication device calculates a corresponding Link Quality Indicator (LQI) value according to all the first terminal power values. And the second power line communication device filters out the noise of the average of all the link quality indicator values to generate a fire risk potential index. When the fire risk potential index is greater than the threshold, the first power line communication device generates the first warning signal.

In an embodiment of the invention, the power line safety warning device further includes a power distribution panel electrically connected to the first power line communication device to provide the power line signal to the first power line communication device.

In an embodiment of the present invention, the number of the second power line communication devices is plural, the number of the loads is plural, and the number of the terminals is plural, and all the terminals are respectively connected to all the second power line communication devices, and respectively connected to all the loads. . The first power line communication device generates a control command corresponding to at least one of all the second power line communication devices, and is carried on the power line signal to broadcast a control command to all the second power line communication devices, and the second power line communication corresponding to the control command The device calculates a fire risk potential index using the at least one first terminal power value according to the control command.

In an embodiment of the invention, the first power line communication device further includes a display, a first processor and a first power line communication module. The first processor is electrically connected to the display and receives the power line signal, the first processor presets the threshold, and the first processor generates a control command. The first power line communication module is connected to the beginning of the power line and electrically connected to the first processor. The first processor transmits the power line signal to the power line by using the first power line communication module, and the first power line communication module carries the control command on the power line signal, and receives the fire risk potential index, and transmits the power to the first processor, the first processor The first warning signal is displayed according to the fire risk potential index and the threshold control display.

In one embodiment of the invention, the display is a touch display.

In an embodiment of the invention, the first processor controls the display to display the second warning signal when the fire risk potential index is not received within the preset time period after the control command is generated.

In an embodiment of the present invention, each of the second power line communication devices further includes at least one second power line communication module and a second processor. The second power line communication module is connected to the corresponding terminal to receive the power line signal. The second processor is electrically connected to the second power line communication module. When the second processor receives the control command by using the second power line communication module, the second processor controls the second power line communication module to calculate the fire risk potential index by using the at least one first terminal power value according to the control command, and utilizes the second power line. The potential index of the communication module carrying fire risk is on the power line signal.

In an embodiment of the invention, the power line is a single-phase power line, and the power line signal is a single-phase power line signal.

In an embodiment of the invention, the power line is a three-phase power line, and the power line signal is a three-phase power line signal.

In an embodiment of the present invention, the number of the second power line communication modules is two, and the power line signals of each terminal further have at least one second terminal power value, the phase of which is different from the phase of the first terminal power value. When the second processor uses all the second power line communication modules to receive the control command, the second processor controls the second power line communication module to calculate the second fire risk potential by using the second terminal power value and the first terminal power value according to the control command. index.

In an embodiment of the present invention, the second power line communication modules respectively calculate at least two link quality indicators (Link Quality Indicators) corresponding to the at least one first terminal power value and the at least one second terminal power value. The LQI) value is transmitted to the second processor, and the second processor filters out noise of all link quality indication values to generate a second fire risk potential index, respectively.

In an embodiment of the present invention, if all the link quality indication values are different, the second processor selects the second power line communication module corresponding to the higher link quality indicator value to carry the fire risk potential index on the power line signal.

In order to give your reviewers a better understanding and understanding of the structural features and efficacies of the present invention, the following is a description of the preferred embodiment and the detailed description.

Changes in the power line can be caused by wire temperature, load current, voltage anomalies, short circuits, and flashovers. For example, although the copper wire has a low resistivity, it still consumes electric energy with different magnitudes of thermal effects due to the magnitude of the load current, and the consumed electrical energy increases the wire temperature. The wire cladding material is a polymer material, and the long-term high temperature environment causes the polymer to age and crack, so the selection of the wire needs to consider the magnitude of the load power. In addition, the current waveform of the wire can vary depending on the amount of load, which can be a linear load or a non-linear load. For multiple load loops, the load current will change waveforms due to different load usage and different load characteristics, and will also affect power usage performance. For example, non-linear loads will reduce the power factor. For multiple load loops, these normally used current waveform changes increase the difficulty of anomaly identification. However, for the industrial power line loop, the equipment phone is mainly based on a single load. If it can be monitored for a long time, the power line abnormal alarm can be found. In addition, long-term monitoring of the load voltage waveform can also identify load voltage changes due to power supply anomalies, which have important contributions to the cause and improvement of important mechanical equipment failures.

When the power line breaks, the broken section will have a short touch due to the vibration and disturbance of the wire. Because the contact surface is small and the impedance is large, the instantaneously conducting current generates a very high power due to the large impedance, which is enough for the instantaneous conduction. The spot area creates a spark that creates a weld or blow. The general load current is the alternating current. These welding or melting phenomena are a series of surge and open circuit waveforms for the change of the load current. These abnormal load current waveforms are similar to pulse width modulation (PWM) signals, which are only turned on for part of the time, such as 1/60 Hz, followed by an open circuit, followed by a series of shorts and open circuits, accompanied by sparks. The size of the spark is related to the power of the load. A high-power electric line may ignite the insulation-coated plastic to cause combustion. If it cannot be extinguished in time, it will cause a fire. Therefore, the present invention monitors the change of the power line signal on the terminal of the power line for a long time to judge the damage condition of the power line, thereby preventing the occurrence of fire, and simultaneously monitoring the load energy value for a long time to avoid sudden failure of the load due to aging, thereby losing capacity.

Please refer to Figure 1 and Figure 2. The following describes a first embodiment of the power line safety warning device of the present invention, comprising a power distribution panel 10, a first power line communication device 12, at least one second power line communication device 14, and at least one power meter 16, in the first embodiment, The number of the second power line communication device 14 and the electric meter 16 is exemplified by a plurality of numbers. The power distribution panel 10 is electrically connected to the first power line communication device 12 to provide power line signals to the first power line communication device 12. The first power line communication device 12 is connected to the beginning of the power line, and the power line has at least one terminal. In the first embodiment, the number of the terminals is also exemplified by a plurality. The first power line communication device 12 receives the power line signal to obtain at least one initial power value S. The number of the initial power values S is also taken as an example. The initial power value S is, for example, a voltage value. The first power line communication device 12 transmits the power line signal to the power line. When the power line is a single-phase power line, the power line signal is a single-phase power line signal, and when the power line is a three-phase power line, the power line signal is a three-phase power line signal. The second power line communication device 14 is connected to at least one load 18 to the terminal of the power line and receives the power line signal at the terminal with the load 18. In this embodiment, the number of loads 18 is also taken as an example. Therefore, all the second power line communication devices 14 are respectively connected to all terminals of the power line, and all the loads 18 are respectively connected to all terminals of the power line, and each of the second power line communication devices 14 is connected. The load 18 corresponding thereto receives the power line signal at the corresponding terminal. The load 18 generates at least one load energy value L based on the power line signal at the terminal. For example, the number of load energy values L of each load 18 is exemplified by a plurality of loads, and the load energy value L is, for example, a voltage value. All the electric meters 16 are electrically connected to all the loads 18, and are electrically connected to all the second power line communication devices 14, respectively, and measure the corresponding load electric energy value L. The meter 16 can be electrically connected to the second power line communication device 14 by using a digital signal interface of RS485. All initial power values S correspond to all load energy values L of each load 18, respectively. The first power line communication device 12 generates a control command C corresponding to at least one of all the second power line communication devices 14, and is carried on the power line signal to broadcast the control command C to all the second power line communication devices 14, corresponding to the control command The second power line communication device 14 of C controls its corresponding meter 16 to return the load energy value L according to the control command C.

The first power line communication device 12 and the second power line communication device 14 perform the first mode or the second mode. The first mode will be introduced below. In the first mode, the second power line communication device 14 carries the load power value L on the power line signal to transmit the load power value L to the first power line communication device 12, and the first power line communication device 12 uses the load energy value L and The initial power value S calculates a first fire risk potential index F1, and the first power line communication device generates a first warning signal according to the first fire risk potential index and a threshold. Specifically, the second power line communication device 14 generates a complex first ratio using all of the initial power values S and their corresponding load energy values L, and filters out the noise of the average of all the first ratios to generate the first fire risk potential. Fire Potential Index (FPI) F1 to detect the usage status of the load 18. The first power line communication device 12 generates a first warning signal when the first fire risk potential index F1 is greater than a threshold. However, if the number of the initial power value S and the load power value L are respectively one, the second power line communication device 14 generates a first ratio by using the initial power value S and its corresponding load energy value L, and filters out the first The ratio of noise to generate the first fire risk potential index F1.

The first power line communication device 12 further includes a display 20, a first processor 22 and a first power line communication module 24. The display 20 is exemplified by a touch display. The first processor 22 is electrically connected to the display 20 and the switchboard 10 and receives the power line signal to capture the initial power value S. The first processor 22 presets a threshold, and the first processor 22 generates a control command C. The first power line communication module 24 is connected to the beginning of the power line and electrically connected to the first processor 22. The first processor 22 transmits the power line signal to the power line by using the first power line communication module 24, and the first power line communication module 24 carries the control command C to the power line signal. In the first mode, the first processor 22 receives the load energy value L by using the first power line communication module 24, and the first processor 22 calculates the first fire risk potential index F1 by using the load power value L and the initial power value S. And displaying the first warning signal according to the first fire risk potential index F1 and the threshold control display 20.

Each of the second power line communication devices 14 further includes at least one second power line communication module 26 and a second processor 28. In the first embodiment, the number of the second power line communication modules 26 is exemplified by one. The second power line communication module 26 is connected to the terminal of the corresponding power line to receive the power line signal. The second processor 28 is electrically connected to the corresponding electric meter 16 and the second power line communication module 26, and when the second processor 28 receives the control command C by using the second power line communication module 26, the second processor 28 is in accordance with the control command. C controls the meter 16 to return the load energy value L. In the first mode, the second processor 28 carries the load energy value L on the power line signal.

The operation of the first mode of the first embodiment of the power line safety warning device of the present invention will be described below. First, the first processor 22 receives the power line signal to retrieve the initial power value S. At the same time, the first processor 22 transmits the power line signal to the power line by using the first power line communication module 24, so that each second power line communication module 26 and its corresponding load 18 receive the power line signal at the corresponding terminal. The load 18 generates a load energy value L according to the power line signal at the terminal, and the meter 16 measures the load energy value L. Next, the first processor 22 generates a control command C corresponding to at least one of all the second power line communication devices 14, and loads the signal on the power line signal to broadcast the control command C to all of the second power line communication devices 14. When the second processor 28 receives the control command C by using the second power line communication module 26, the second processor 28 controls the meter 16 to return the load energy value L according to the control command C, and loads the load power value L on the power line signal. . Then, the first processor 22 receives the load energy value L by using the first power line communication module 24, and generates a first ratio of the first power value by using all the initial power values S and the corresponding load power value L, and filters out all the first ratios. The average noise is generated to generate the first fire risk potential index. When the first fire risk potential index F1 is greater than the threshold, the first processor 22 controls the display 20 to display the first alert signal.

In addition, in order to avoid timeout and not receiving the message to stop the entire device, when the first processor 22 does not receive the load energy value L within the preset time period after generating the control command C, the control display 20 displays the third. Warning signal.

Referring to Figures 3 and 4, a second mode of the power line safety alerting device of the present invention will be described. In the second mode, the first power line communication device 12 carries the initial power value S on the power line signal to transmit the initial power value S to the second power line communication device 14, and the second power line communication device 14 utilizes the load power value L. Calculating the second fire risk potential index F2 with the initial power value S, and transmitting the same on the power line signal for transmission to the first power line communication device 12, the first power line communication device 12 according to the second fire risk potential index F2 and the threshold Generate a second warning signal. Specifically, the second power line communication device 14 generates a second ratio by using all the initial power values S and their corresponding load energy values L, and filters out the noise of the average of all the second ratios to generate a second fire risk potential. Index F2 to detect the state of use of load 18. When the second fire risk potential index F2 is greater than the threshold, the first power line communication device 12 generates a second warning signal. However, if the number of the initial power value S and the load power value L are respectively one, the second power line communication device 14 generates a second ratio by using the initial power value S and its corresponding load energy value L, and filters out the second The ratio of noise to generate the second fire risk potential index F2.

In the first power line communication device 12, the first processor 22 uses the first power line communication module 24 to carry the initial power value S on the power line signal, and uses the first power line communication module 24 to receive the second fire risk potential index F2. The first processor 22 displays the second alert signal according to the second fire risk potential index F2 and the threshold control display 20. In the second power line communication device 14, the second processor 28 controls the second power line communication module 26 to return the initial power value S, and the second processor 28 calculates the second power using the load power value L and the initial power value S. The fire risk potential index F2 is used to carry the second power line communication module 26 on the power line signal.

The operation of the second mode of the first embodiment of the power line safety warning device of the present invention will be described below. First, the first processor 22 receives the power line signal to retrieve the initial power value S. At the same time, the first processor 22 transmits the power line signal to the power line by using the first power line communication module 24, so that each second power line communication module 26 and its corresponding load 18 receive the power line signal at the corresponding terminal. The load 18 generates a load energy value L according to the power line signal at the terminal, and the meter 16 measures the load energy value L. Then, the first processor 22 generates a control command C corresponding to at least one of all the second power line communication devices 14, and carries the first power line communication module 24 on the power line signal to broadcast the control command C to all the first Two power line communication devices 14. When the second processor 28 receives the control command C by using the second power line communication module 26, the second processor 28 controls the meter 16 to return the load energy value L according to the control command C. Then, the first processor 22 uses the first power line communication module 24 to carry the initial power value S on the power line signal. The second processor 28 controls the second power line communication module 26 to return the initial power value S, and generates a second ratio by using all the initial power values S and their corresponding load energy values L, and filters out all the second ratios. The average noise is generated to generate a second fire risk potential index F2, and this is carried on the power line signal by the second power line communication module 26. The first processor 22 receives the second fire risk potential index F2 using the first power line communication module 24. When the second fire risk potential index F2 is greater than the threshold, the first processor 22 controls the display 20 to display the second alert signal.

In addition, in order to avoid timeout and not receiving the message to stop the operation of the entire device, when the first processor 22 does not receive the second fire risk potential index F2 within the preset time period after generating the control command C, the control display 20 displays The third warning signal.

Please refer to Figure 5 and Figure 6. The second embodiment of the power line safety warning device of the present invention includes a power distribution panel 10, a first power line communication device 12 and at least one second power line communication device 14. In the second embodiment, the second power line communication device The number of 14 is exemplified by a plurality of numbers. The power distribution panel 10 is electrically connected to the first power line communication device 12 to provide power line signals to the first power line communication device 12. The first power line communication device 12 is connected to the beginning of the power line, and the power line has at least one terminal. In the second embodiment, the number of terminals is also exemplified by a plurality. The first power line communication device 12 transmits the power line signal to the power line. Here, the power line is a single-phase power line, and the power line signal is a single-phase power line signal. The second power line communication device 14 is connected to at least one load 18 to the terminal of the power line and receives the power line signal at the terminal with the load 18. In this embodiment, the number of loads 18 is also taken as an example. Therefore, all the second power line communication devices 14 are respectively connected to all terminals of the power line, and all the loads 18 are respectively connected to all terminals of the power line, and each of the second power line communication devices 14 is connected. The load 18 corresponding thereto receives the power line signal at the corresponding terminal. The first power line communication device 12 generates a control command C corresponding to at least one of all the second power line communication devices 14, and is carried on the power line signal to broadcast the control command C to all the second power line communication devices 14, corresponding to the control command The second power line communication device 14 of C calculates at least one Fire Potential Index (FPI) F by using at least one first terminal power value E1 of the power line signal of at least one terminal, and loads the power line signal on the power line signal. It is transmitted to the first power line communication device 12 to detect the quality of the power line. The first power line communication device 12 generates at least one first warning signal according to the fire risk potential index F and the threshold. The number of the fire risk potential index and the first warning signal are both taken as an example. The first terminal power value E1 is, for example, a power value. Specifically, the number of the first terminal power values E1 on each terminal of the power line is plural, and each first terminal power value E1 includes a signal power value and a noise power value, and the signal power value is divided by the noise power. The value gives the signal-to-noise ratio (SNR). According to the link quality indicator (LQI) value=(SNR+10)×4, in other words, the second power line communication device 14 calculates the corresponding complex link quality indicator value according to all the first terminal power values E1. And the second power line communication device 14 filters out the noise of the average of all the link quality indicator values to generate the fire risk potential index F. The first power line communication device 12 generates a first warning signal when the fire risk potential index F is greater than a threshold. Assuming that the number of the first terminal power value E1 is only one, the second power line communication device 14 calculates the corresponding link quality indicator value according to the first terminal power value E1, and filters out the noise of the link quality indicator value. To generate a fire risk potential index F.

The first power line communication device 12 further includes a display 20, a first processor 22 and a first power line communication module 24. The display 20 is exemplified by a touch display. The first processor 22 is electrically connected to the display 20 and the switchboard 10 and receives power line signals. The first processor 22 presets a threshold, and the first processor 22 generates a control command C. The first power line communication module 24 is connected to the beginning of the power line and electrically connected to the first processor 22. The first processor 22 transmits the power line signal to the power line by using the first power line communication module 24, and the first power line communication module 24 carries the control command C on the power line signal, and receives the fire risk potential index F, and transmits the power to the first processor. 22. The first processor 22 displays the first alert signal according to the fire risk potential index F and the threshold control display 20.

Each of the second power line communication devices 14 further includes at least one second power line communication module 26 and a second processor 28. The number of the second power line communication modules 26 is exemplified by one. The second power line communication module 26 is connected to the terminal of the corresponding power line to receive the power line signal. The second processor 28 is electrically connected to the second power line communication module 26 corresponding thereto. When the second processor 28 receives the control command C by using the second power line communication module 26, the second processor 28 controls the second according to the control command C. The power line communication module 26 calculates the fire risk potential index F by using the first terminal power value E1, and uses the second power line communication module 26 to carry the fire risk potential index F on the power line signal.

The operation of the second embodiment of the power line safety alerting device of the present invention will now be described. First, the first processor 22 receives the power line signal. At the same time, the first processor 22 transmits the power line signal to the power line by using the first power line communication module 24, so that each second power line communication module 26 and its corresponding load 18 receive the power line signal at the corresponding terminal. Then, the first processor 22 generates a control command C corresponding to at least one of all the second power line communication devices 14, and carries the first power line communication module 24 on the power line signal to broadcast the control command C to all the first Two power line communication devices 14. When the second processor 28 receives the control command C by using the second power line communication module 26, the second processor 28 controls the second power line communication module 26 to calculate the corresponding correspondences by using all the first terminal power values E1 according to the control command C. The plurality of link quality indicator values, and the second processor 28 filters out the noise of the average of all the link quality indicator values, thereby calculating the fire risk potential index F, and using the second power line communication module 26 to carry the fire risk The potential index F is on the power line signal. When the fire risk potential index F is greater than the threshold, the first processor 22 controls the display 20 to display the first alert signal.

In addition, in order to avoid timeout and not receiving the message to stop the operation of the entire device, the first processor 22 displays the second alert when the fire risk potential index F is not received within the preset time period after the control command C is generated. Signal.

Please continue to see Figures 5 and 7. If the power line is a three-phase power line, the power line signal is a three-phase power line signal. The number of the second power line communication modules 26 is two, and the power line signal of each terminal further has at least one second terminal power value E2 whose phase is different from the phase of the first terminal power value E1. When the second processor 28 receives the control command C by using all the second power line communication modules 26, the second processor 28 controls all the second power line communication modules 26 to use the second terminal power value E2 and the first terminal according to the control command C. The power value E1 calculates the second fire risk potential index F. Assuming that the number of first terminal power values E1 is at least one, the corresponding link quality indicator value is also at least one. Because the second terminal power value E2 also includes the signal power value and the noise power value, according to the LQI value=(SNR+10)×4, the signal noise ratio and link quality corresponding to the second terminal power value E2 can also be calculated. Indicates the value. In other words, the second power line communication module 26 calculates the at least two link quality indication values respectively corresponding to the first terminal power value E1 and the second terminal power value E2, and transmits the same to the second processor 28, The second processor 28 filters out noise of all link quality indicator values to generate a second fire risk potential index F, respectively. Similarly, assuming that the number of the first terminal power value E1 and the second terminal power value E2 are plural, the second power line communication module 26 calculates the first terminal power value E1 and all the second terminal power values E2, respectively. The second processor 28 filters out the noise of all link quality indicator values to generate a second fire risk potential index F, respectively. The second processor 28 carries the fire risk potential index F on the power line signal by using the second power line communication module 26 for transmission to the first power line communication device 12 for determination. If the second fire risk potential index F is greater than the threshold, the first processor 22 controls the display 20 to display two first warning signals. If only one fire risk potential index F is greater than the threshold, the first processor 22 controls the display 20 to display a first warning signal.

In order to ensure that the fire risk potential index F can be transmitted on the better quality power line, when the link quality indication value corresponding to the first terminal power value E1 and the second terminal power value E2 is different, the second processor 28 selects the higher link. The second power line communication module 26 corresponding to the quality indicator value carries the fire risk potential index F on the power line signal.

In summary, the present invention monitors the change of the power line signal on the terminal of the power line for a long time to determine the damage condition of the power line, thereby preventing the occurrence of fire, and simultaneously monitoring the load energy value for a long time, so that the user can immediately replace the load to avoid the load. Sudden failure due to aging, resulting in lost capacity.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that the shapes, structures, features, and spirits described in the claims of the present invention are equally varied and modified. All should be included in the scope of the patent application of the present invention.

10‧‧‧Distribution panel

12‧‧‧First power line communication device

14‧‧‧Second power line communication device

16‧‧‧Electric meter

18‧‧‧load

20‧‧‧ display

22‧‧‧First processor

24‧‧‧First Power Line Communication Module

26‧‧‧Second power line communication module

28‧‧‧second processor

1 is a circuit block diagram showing a first mode of a first embodiment of a power line safety warning device of the present invention. 2 is a block diagram showing a detailed circuit diagram of a power strip, a first power line communication device, a second power line communication device, an electric meter, and a load in a first mode according to the first embodiment of the present invention. Fig. 3 is a circuit block diagram showing a second mode of the first embodiment of the power line safety warning device of the present invention. 4 is a block diagram showing a detailed circuit diagram of a power distribution panel, a first power line communication device, a second power line communication device, an electric meter, and a load in a second mode according to the first embodiment of the present invention. Fig. 5 is a circuit block diagram showing a second embodiment of the power line safety warning device of the present invention. Figure 6 is a block diagram showing a detailed circuit diagram of a power distribution panel, a first power line communication device, a second power line communication device, an electric meter, and a load corresponding to a single-phase power line according to a second embodiment of the present invention. Figure 7 is a block diagram showing a detailed circuit diagram of a power strip, a first power line communication device, a second power line communication device, an electric meter, and a load corresponding to a three-phase power line according to a second embodiment of the present invention.

Claims (22)

A power line safety warning device includes: a first power line communication device connected to a beginning end of a power line, the power line having at least one terminal, the first power line communication device receiving a power line signal to capture at least one initial power value, the first The power line communication device transmits the power line signal to the power line; the at least one second power line communication device is connected to the at least one terminal of the power line with at least one load, and receives the power line signal at the at least one terminal with the at least one load, The at least one load generates at least one load electric energy value according to the power line signal at the at least one terminal; and at least one electric meter electrically connects the at least one load and the at least one second power line communication device, and measures the at least one load An electric energy value, the at least one initial power value corresponding to at least one load electric energy value, the at least one second power line communication device controlling the electric meter to return the at least one load electric energy value, the first electric power line communication device and the at least one second electric power line The communication device performs the first mode or the second mode, in the first mode The at least one second power line communication device carries the at least one load power value on the power line signal to transmit the at least one load power value to the first power line communication device, wherein the first power line communication device utilizes the at least one load Calculating a first fire risk potential index with the at least one initial power value, the first power line communication device generating a first warning signal according to the first fire risk potential index and a threshold, in the second mode, the first The power line communication device carries the at least one initial power value on the power line signal to transmit the at least one initial power value to the at least one second power line communication device, wherein the at least one second power line communication device utilizes the at least one load power value Calculating a second fire risk potential index with the at least one initial power value, and transmitting the second fire risk potential signal to the first power line communication device, the first power line communication device according to the second fire risk potential index This threshold produces a second warning signal. The power line safety warning device of claim 1, wherein the at least one load power value is plural, and the at least one initial power value is also plural, and the first power line communication device uses the initial power values to correspond thereto The load energy values generate a plurality of first ratios, and filter out the average of the first ratios to generate the first fire risk potential index. When the first fire risk potential index is greater than the threshold, the The first power line communication device generates the first warning signal, and the at least one second power line communication device generates a plurality of second ratios by using the initial power values and the corresponding load energy values, and filtering the second ratios The average noise is generated to generate the second fire risk potential index. When the second fire risk potential index is greater than the threshold, the first power line communication device generates the second warning signal. The power line safety warning device of claim 1, further comprising a power distribution panel electrically connected to the first power line communication device to provide the power line signal to the first power line communication device. The power line safety warning device of claim 1, wherein the number of the at least one second power line communication device is plural, the number of the at least one load is plural, and the number of the at least one terminal is plural, the at least one The number of the electric meters is plural, and the terminals are respectively connected to the second power line communication devices, and respectively connected to the loads, the electric meters are respectively electrically connected to the loads, and are electrically connected to the second power line communication devices respectively. The first power line communication device generates a control command corresponding to at least one of the second power line communication devices, and loads the control signal on the power line signal to broadcast the control command to the second power line communication devices, corresponding to The second power line communication device of the control command controls the meter to return the at least one load energy value according to the control command. The power line safety warning device of claim 4, wherein the first power line communication The device further includes: a display; a first processor electrically connected to the display, and receiving the power line signal to capture the at least one initial power value, the first processor presets the threshold, and the first The processor generates the control command; and a first power line communication module, connecting the beginning end of the power line, and electrically connecting the first processor, the first processor transmitting the power line signal by using the first power line communication module Up to the power line, the first power line communication module carries the control command on the power line signal, and in the first mode, the first processor receives the at least one load energy value by using the first power line communication module, The first processor calculates the first fire risk potential index by using the at least one load energy value and the at least one initial power value, and controls the display to display the first warning signal according to the first fire risk potential index and the threshold, In the second mode, the first processor uses the first power line communication module to load the at least one initial power value on the power line signal, and utilizes the first power Line communication module receiving the second potential fire index, the first processor according to the second potential fire control and the threshold index which displays the second warning signal. The power line security alert device of claim 5, wherein the display is a touch display. The power line safety alert device of claim 5, wherein the first processor controls the at least one load energy value or the second fire risk potential index within a preset time period after generating the control command The display shows a third warning signal. The power line safety warning device of claim 5, wherein each of the second power line communication devices further comprises: at least one second power line communication module, connected to the terminal corresponding thereto, to receive the a power line signal; and a second processor electrically connected to the corresponding meter and the at least one second power line communication module, when the second processor receives the control command by using the at least one second power line communication module The second processor controls the meter to return the at least one load energy value according to the control command, in the first mode, the second processor loads the at least one load energy value on the power line signal, where In the second mode, the second processor controls the at least one second power line communication module to return the at least one initial power value, and the second processor calculates the at least one load energy value and the at least one initial power value. The second fire risk potential index is used to carry the at least one second power line communication module on the power line signal. The power line safety warning device of claim 8, wherein the power line is a single-phase power line, and the power line signal is a single-phase power line signal. The power line safety warning device of claim 8, wherein the power line is a three-phase power line, and the power line signal is a three-phase power line signal. A power line safety warning device includes: a first power line communication device connected to a beginning end of a power line, the power line having at least one terminal, the first power line communication device receiving a power line signal, and transmitting the power line signal to the power line; and at least one a power line communication device connected to the at least one terminal of the power line with at least one load, and receiving the power line signal at the at least one terminal with the at least one load, wherein the at least one second power line communication device is utilized at the at least one terminal At least one first terminal power value of the power line signal calculates at least one Fire Potential Index (FPI), and is carried on the power line signal for transmission to the first power line communication device, the first The power line communication device is based on the at least one fire risk potential finger The number and the threshold generate at least one first warning signal, the at least one first terminal power value is a plurality, and the at least one second power line communication device calculates the corresponding complex link quality according to the first terminal power values a Link Quality Indicator (LQI) value, and the at least one second power line communication device filters noise of the average of the link quality indicator values to generate the at least one fire risk potential index, where the at least one fire risk potential When the index is greater than the threshold, the first power line communication device generates the at least one first warning signal. The power line safety warning device of claim 11, further comprising a power distribution panel electrically connected to the first power line communication device to provide the power line signal to the first power line communication device. The power line safety warning device of claim 11, wherein the number of the at least one second power line communication device is plural, the number of the at least one load is plural, and the number of the at least one terminal is plural, and the terminals are Connecting the second power line communication devices respectively, and respectively connecting the loads, the first power line communication device generating a control command corresponding to at least one of the second power line communication devices, and loading the power line signal on the power line signal, And broadcasting the control command to the second power line communication devices, wherein the second power line communication device corresponding to the control command calculates the at least one fire risk potential index by using the at least one first terminal power value according to the control command. The power line security warning device of claim 13, wherein the first power line communication device further comprises: a display; a first processor electrically connected to the display and receiving the power line signal, the first processor preset The threshold, the first processor generates the control command; and a first power line communication module, connecting the beginning end of the power line, and electrically connecting the first processor, the first processor utilizing the first Power line communication module transmits the power a line signal to the power line, the first power line communication module loading the control command on the power line signal, and receiving the at least one fire risk potential index, transmitting the same to the first processor, the first processor according to the at least A fire risk potential index and the threshold control the display to display the at least one first warning signal. The power line security alert device of claim 14, wherein the display is a touch display. The power line safety warning device of claim 14, wherein the first processor controls the display to display the second warning signal when the at least one fire risk index is not received within the preset time period after the control command is generated. The power line security warning device of claim 14, wherein each of the second power line communication devices further comprises: at least one second power line communication module, connecting the terminal corresponding thereto to receive the power line signal; and a second The processor is electrically connected to the at least one second power line communication module, and when the second processor receives the control command by using the at least one second power line communication module, the second processor controls the at least according to the control instruction A second power line communication module calculates the at least one fire risk potential index by using the at least one first terminal power value, and uses the at least one second power line communication module to carry the at least one fire risk potential index on the power line signal. The power line safety warning device of claim 17, wherein the power line is a single-phase power line, and the power line signal is a single-phase power line signal. The power line safety warning device of claim 17, wherein the power line is a three-phase power line, and the power line signal is a three-phase power line signal. The power line safety alert device of claim 17, wherein the at least one second power The number of the line communication modules is two, and the power line signal of each terminal further has at least one second terminal power value, the phase of which is different from the phase of the at least one first terminal power value, and is utilized by the second processor. When the second power line communication module receives the control command, the second processor controls the second second power line communication module to use the at least one second terminal power value and the at least one first terminal power value according to the control command. Calculate the potential index of the fire risk. The power line safety warning device of claim 20, wherein the two second power line communication modules respectively calculate at least two links corresponding to the at least one first terminal power value and the at least one second terminal power value respectively A Link Quality Indicator (LQI) value is transmitted to the second processor, and the second processor filters out the noise of the link quality indicator values to generate the two fire risk potential indexes respectively. The power line security alert device of claim 21, wherein the link quality indicator values are different, the second processor selects the higher link quality indicator value corresponding to the second power line communication module to the fire risk The potential index is on the power line signal.