CN106657338B - Power supply centralized monitoring system and monitoring method thereof - Google Patents
Power supply centralized monitoring system and monitoring method thereof Download PDFInfo
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- CN106657338B CN106657338B CN201611214215.9A CN201611214215A CN106657338B CN 106657338 B CN106657338 B CN 106657338B CN 201611214215 A CN201611214215 A CN 201611214215A CN 106657338 B CN106657338 B CN 106657338B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The invention discloses a power supply centralized monitoring system, which comprises a plurality of power supply monitoring modules, wherein each power supply monitoring module is used for corresponding power supply data or information; the power monitoring module is connected to a corresponding CAN/RS485 bus; each CAN/RS485 bus is connected to a control cabinet, and the CAN/RS485 bus is used for transmitting power supply data or information monitored by the power supply monitoring module to the control cabinet; the control cabinet analyzes the received power data or information, displays the power data or information on a touch screen of the control cabinet, uploads the power data or information to a local user information transmission module in real time, and the power data or information is transmitted to a cloud end through the local user information transmission module. The invention also discloses a monitoring method of the power supply centralized monitoring system.
Description
Technical Field
The invention relates to the fields of communication, fire control and the like, in particular to a centralized power supply monitoring system and a monitoring method thereof.
Background
In a fire-fighting system of a large building, a fire elevator, a fire hydrant, emergency lighting, a fire-proof roller shutter and other huge electric equipment need to carry out online monitoring on indexes such as voltage, current, power and the like, so that the stable and safe operation of the fire-fighting equipment is ensured.
In a fire monitoring system, power supply power is one of the main monitoring indexes. However, there are often hundreds of thousands of detection nodes in a building, so that a field bus supporting distributed control and real-time control is needed to cluster the nodes for data acquisition and transmission in order to centrally monitor the data of each node. The CAN bus exactly meets this requirement.
The CAN bus is a serial communication bus in a multi-master mode, and has the characteristics of excellent stability, real-time performance, remote communication capability, super-strong hardware CRC (cyclic redundancy check) error correction and the like; the application of CAN bus technology is no longer limited to the automotive industry, but extends to the mechanical, textile, control, etc. industries and is recognized as one of the most promising field buses. However, the CAN bus communication distance and the number of nodes in the network are limited to 10km and 110, respectively, due to the CAN transceiver. However, this is often not sufficient in larger CAN bus systems, where the CAN bus network needs to be extended with CAN bus repeaters.
When the CAN bus is expanded, a CAN repeater is required to be utilized. However, the existing CAN repeater design mostly adopts a double-chip or multi-chip solution of the MCU plus the CAN controller. In the process of data or information transmission processing, when CAN bus data or information with different baud rates are transferred, the load of a processor is large, and the high-efficiency transmission of the data or information of a large CAN bus network is difficult to meet.
Disclosure of Invention
In view of the above problems, the present invention provides a centralized power monitoring system and a monitoring method thereof, which solves one or more technical problems in the prior art and achieves the purpose of systematic and real-time power control.
The technical scheme for realizing the purpose is as follows: a power centralized monitoring system comprises
The power supply monitoring module is used for monitoring power supply data or information corresponding to the power supply monitoring module;
the power monitoring module is connected to a corresponding CAN/RS485 bus;
each CAN/RS485 bus is connected to the control cabinet, and the CAN/RS485 bus is used for transmitting power supply data or information monitored by the power supply monitoring module to the control cabinet;
the control cabinet analyzes the received power data or information, displays the power data or information on a touch screen of the control cabinet, uploads the power data or information to a local user information transmission module in real time, and transmits the power data or information to a cloud end through the local user information transmission module.
In an embodiment of the present invention, the power centralized monitoring system further includes at least one repeater, each repeater is connected between the upper and lower CAN/RS485 buses, and the repeater is configured to forward the power data or information from the lower CAN/RS485 bus to the upper CAN/RS485 bus.
In an embodiment of the present invention, the power centralized monitoring system, the repeater includes
The first transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the first transceiver;
the second transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the second transceiver;
a first microcontroller for processing the received power data or information; and setting a value of a received data filtering register and a value of a transmitted data filtering register of the repeater, wherein the value of the received data filtering register of the repeater corresponds to the value of the transmitted data filtering register of the power monitoring module, and the value of the transmitted data filtering register of the repeater corresponds to the value of the received data filtering register of the control cabinet.
In an embodiment of the present invention, the power monitoring module includes
The fifth transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the fifth transceiver;
the second microcontroller is used for processing the monitored power supply data or information; and setting the value of a sending data filtering register of the power monitoring module.
In an embodiment of the present invention, the control cabinet further includes
The third transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the third transceiver;
the fourth transceiver is used for transmitting power supply data or information to the local user information transmission module;
a third microcontroller for processing the received power data or information; the value of the sending data filtering register of the control cabinet corresponds to the value of the receiving data filtering register of the local user information transmission module;
the SWD module is connected with the third microcontroller and is used for updating, downloading and debugging programs;
the EPROM module is connected with the third microcontroller and is used for storing data or information;
and the power supply module is connected with the third microcontroller and is used for providing power for the control cabinet.
In an embodiment of the present invention, the third transceiver includes a third CAN transceiver and/or a third RS485 transceiver; the fourth transceiver comprises a fourth CAN transceiver and/or a WIFI communication module.
In an embodiment of the present invention, the centralized power monitoring system further includes a client configured to obtain the power data or information from the cloud.
Another object of the invention is: a monitoring method of a power supply centralized monitoring system comprises the following steps,
s1) creating tasks by the control cabinet, including a power supply data or information acquisition task, an interface display task of the touch screen and a task of reading information instructions of the touch screen;
s2) selecting and establishing a communication mode by the control cabinet;
s3) the control cabinet monitors the power supply monitoring module to collect power supply data or information;
s4) the power supply monitoring module transmits power supply data or information to the control cabinet through a CAN/RS485 bus;
s5) the control cabinet receives and processes the power supply data or information, displays the processed power supply data or information on the touch screen in real time, and transmits the power supply data or information to a local user information transmission module;
s6), the local user information transmission module transmits the power supply data or information to a cloud.
In an embodiment of the present invention, when a repeater is connected between the upper and lower two-level CAN/RS485 buses, the step S4) further includes a step in which the power monitoring module transmits power data or information to the repeater through the CAN/RS485 bus, and the repeater transmits the power data or information to the control cabinet through the CAN/RS485 bus.
In an embodiment of the present invention, the following steps are further included between the step S2) and the step S3),
s7) the first microcontroller, the second microcontroller, and the third microcontroller configure their respective information parameters, which include ID information, baud rate of each transceiver, and data sampling frequency.
The invention has the advantages that: the power supply centralized monitoring system and the monitoring method thereof are connected in a layered and graded manner through three connection modes from near to far, and if the monitoring node is close to the control cabinet and the number of the nodes is small, the monitoring node CAN be directly mounted in a CAN/485 bus loop led out of the power supply control cabinet; when the number of the monitoring nodes is large and the monitoring nodes are far away from the control cabinet, the monitoring nodes need to be relayed by a relay so as to expand the bus distance and adjust the baud rate; when part of the monitoring nodes are far away, the control cabinet can be led out to carry the close-range monitoring nodes, and the nodes far away from the control cabinet are relayed through the repeater. In the power supply centralized monitoring system, power supply information acquired by all monitoring nodes is transmitted to a power supply monitoring control cabinet in a CAN/485 bus mode; the structural rationality and systematicness of the system are improved, the management of the system is enhanced, and the centralized monitoring of power supply and electric energy and the receiving, displaying and forwarding of node data are realized; the advantages of the STM32 with cortex 3 as an inner core are fully utilized, and the design of a hardware circuit is simplified by internally integrating the double bxCAN controller; the development period is shortened by the aid of abundant firmware library functions; the screen display adopts low power consumption setting, has a wake-up function and can realize remote online upgrade on a program; the UCOS real-time operating system is integrated, so that the real-time performance of data acquisition, transmission and display is ensured; and the Modbus, CANBUS and TCPIP communication protocols are integrated, and data transmission is flexible.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic block diagram of a centralized power monitoring system according to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a control cabinet module according to an embodiment of the present invention.
Fig. 3 is a flowchart of the monitoring method according to embodiment 1 of the present invention.
Fig. 4 is a schematic block diagram of a centralized power monitoring system according to embodiment 2 of the present invention.
Fig. 5 is a schematic diagram of a repeater module according to embodiment 2 of the present invention.
Fig. 6 is a flowchart of the monitoring method according to embodiment 2 of the present invention.
Wherein.
1, a power supply monitoring module; 2 CAN/RS485 bus;
3, a control cabinet; 4, a local user information transmission module;
5, cloud end; 6, a client;
11 a second microcontroller; 12 a fifth CAN transceiver;
31 a fourth transceiver; 32 a third transceiver;
33 a third microcontroller; 34 SWD module;
a 35 EPROM module; 36 a power supply module;
311 a fourth CAN transceiver; 312 WIFI communication module;
321 a third CAN transceiver; 322 third RS485 transceiver;
7 a repeater; 71 a first CAN transceiver;
72 a second CAN transceiver; 73 a first microcontroller.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example 1
As shown in fig. 1, a centralized power monitoring system includes a plurality of power monitoring modules 1, a plurality of CAN/RS485 buses 2, a control cabinet 3, a local user information transmission module 4, a cloud terminal 5, and at least one client terminal 6.
Each power monitoring module 1 is used for power data or information of the corresponding electric device. Each power monitoring module 1 includes a second microcontroller 11 and a fifth transceiver. The second microcontroller is used for processing the monitored power supply data or information; and setting the value of the transmission data filtering register of the power monitoring module 1. The fifth transceivers are all connected to the second microcontroller 11, and the second microcontroller 11 packages the acquired power supply data or information and forwards the power supply data or information to the CAN/RS485 bus 2 through the fifth transceivers.
The fifth transceiver includes a fifth CAN transceiver 12 and/or a fifth RS485 transceiver, and the fifth CAN transceiver 12 and the CAN bus are taken as an example to specifically describe the present embodiment.
In this embodiment, the CAN bus connected to the power monitoring module 1 is a first-level bus (lower-level bus), each CAN bus has a plurality of connection interfaces, which is 110 connection interfaces in this embodiment, and the power monitoring modules 1 are connected in parallel to these connection interfaces through the fifth transceiver, when the transmission distance is short, i.e., the first-level bus CAN complete the transmission task, then the power monitoring modules 1 are directly connected to the control cabinet 3 through a CAN bus.
Each CAN/RS485 bus 2 is connected to the control cabinet 3, and the CAN/RS485 bus 2 is used for transmitting the power supply data or information monitored by the power supply monitoring module 1 to the control cabinet 3. The control cabinet 3 analyzes the received power data or information, displays the power data or information on a touch screen of the control cabinet 3, uploads the power data or information to a local user information transmission module 4 in real time, and transmits the power data or information to a cloud end 5 through the local user information transmission module 4. The client 6 is used for acquiring power data or information from the cloud 5.
Specifically, the control cabinet 3 further includes a third transceiver 32, a fourth transceiver 31, a third microcontroller 33, an SWD module 34, an EPROM module 35, and a power module 36. The third transceiver 32 includes a third CAN transceiver 321 and/or a third RS485 transceiver 322, and the fourth transceiver 31 includes a fourth CAN transceiver 311 and/or a WIFI communication module 312. The control cabinet 3 will be explained by taking the CAN bus as an example. The third CAN transceiver 321 has 10 CAN interfaces, so the control cabinet 3 CAN be directly connected to the power monitoring module 1.
The third microcontroller 33 is a main controller of the whole system, STM32 of an Italian semiconductor is adopted as the main controller, STM32 is a 32-bit microprocessor with ARM Cortex-M3 as an inner core, the main frequency can reach 72MHz, and Flash and SRAM are arranged in the STM32, and the capacities of the Flash and SRAM can respectively reach 512KB and 64 KB; an internally integrated dual bxCAN controller. It supports CAN protocols V2.0A and V2.0B, with a baud rate up to 1Mb/s, 3 sending mailboxes and 2 3-level deep FIFOs, and CAN process a large number of received messages with minimum processor load and high efficiency.
The third CAN transceiver 321 transmits data or information with its corresponding connected CAN bus; such as an interface to a CAN bus. Third RS485 transceiver 322 has the data interface who reserves, and when the node needs 485 communications or ascending data transmission to be compatible MODBUS agreement, we CAN adopt the RS485 data interface who reserves to carry out data transmission, and RS485 transceiver and CAN transceiver and WIFI communication module 312 CAN realize CAN receiving and dispatching and RS485 receiving and TC/PIP changes MODBUS communication simultaneously.
When the power monitoring module 1 directly transmits power data or information to the control cabinet 3, the value of the data sending filter register of the power monitoring module 1 is set according to the following table 1; the values of the received data filter register of the control cabinet 3 are set as in table 2 below; thus, the data sent by each power monitoring module 1 is received by the control cabinet 3.
TABLE 1 receive data filter register values
Table 2 values of the transmit data filter registers
| CAN_FxR1 | CAN_FxR2 |
| 0x200fffff-0x2fffffff | 0xffffffff |
The fourth transceiver 31 is used for transmitting power data or information to the local user information transmission module 4; when data or information transmission is carried out, an information transmission mode CAN be selected, for example, WIFI data transmission or CAN bus transmission CAN be selected. When WIFI data transmission is selected, the module analyzes the collected node information according to a CANBUS protocol, repacks the node information, and transmits the node information to the user information transmission module through the WIFI communication module 312 according to a TC/PIP protocol. Serial port communication is performed between the WIFI communication module 312 and the third microcontroller, and when the third microcontroller cannot detect WIFI, the third microcontroller resets the third microcontroller through the reset circuit and reconnects the third microcontroller.
The third microcontroller 33 controls the work of other modules at the same time, and realizes the receiving, analyzing, displaying, packaging and sending of data, specifically including processing the received power data or information; and a value used for setting a received data filtering register and a sent data filtering register of the control cabinet 3, the value of the sent data filtering register of the control cabinet 3 corresponding to the value of the received data filtering register of the local user information transmission module 4; the values of the receive data filter register and the values of the transmit data filter register are set as shown in tables 1 and 2 above.
And the SWD module 34 is connected to the third microcontroller, and the SWD module 34 is used for updating, downloading and debugging the program.
An EPROM module 35 connected to the third microcontroller, said EPROM module 35 being adapted to store data or information. The EPROM module 35 mainly stores parameters, such as ID, CAN baud rate, network name, IP address, port number, router password, and floor, which are set in the control cabinet 3. Thus, the parameters can be saved after power-off or reset.
And the power supply module 36 is connected to the third microcontroller, and the power supply module 36 is used for supplying power to the control cabinet 3. The power module 36 adopts a 12-36V flexible input interface, and supplies power to the third microcontroller, the WIFI communication module 312, the touch screen and other modules after being converted into 3.3V and 5V voltages by the voltage stabilizing and reducing circuit.
The touch screen is 7 cun liquid crystal touch display screen, mainly supplies operating personnel to set for some parameters, and this switch board 3's three kinds of working methods of data transmission WIFI, ethernet and CAN all CAN all be through touch screen manual selection. Meanwhile, the ID of the power control cabinet 3, the IP address and port number of the network connection, the router name and password, and the communication baud rate of the CAN be set through the screen, and the monitoring information and the status of the power module 36 of each node connected to the power control cabinet CAN be displayed in real time.
L ED indication module for indicating power on/off, normal operation of program, communication failure and hardware failure.
The control cabinet 3 can select a communication mode as required, set parameters of the control cabinet and have a power-regulating protection function. The system has the functions of self-networking, network disconnection and reconnection and the like; the advantages of the STM32 with cortex 3 as an inner core are fully utilized, and the design of a hardware circuit is simplified by internally integrating the double bxCAN controller; the development period is shortened by the aid of abundant firmware library functions; the screen display adopts low power consumption setting, has a wake-up function and can realize remote online upgrade on a program; the UCOS real-time operating system is integrated, so that the real-time performance of data acquisition, transmission and display is ensured; and the Modbus, CANBUS and TCPIP communication protocols are integrated, and data transmission is flexible.
Method example 1
A monitoring method of a power centralized monitoring system comprises the following steps.
S1) the control cabinet 3 creates tasks including a power supply data or information acquisition task, a touch screen interface display task and a task of reading touch screen information instructions. The power data or information acquisition task is a main task.
S2) in the main task, the control cabinet 3 selects and establishes a communication method. Such as selecting the communication mode between each lower power supply data or information acquisition module and selecting the communication mode with the upper local user information transmission module 4. And reading the task of the touch screen information instruction, and reading the operation instruction of the staff on the touch screen in real time.
S7) the second microcontroller 11 and the third microcontroller configure respective information parameters including the respective ID information, baud rate of the respective transceiver, data sampling frequency.
S3) the control cabinet 3 monitors the power supply monitoring module 1 to collect power supply data or information.
S4) the power supply monitoring module 1 transmits power supply data or information to the control cabinet 3 through the CAN/RS485 bus 2.
S5), the control cabinet 3 receives and processes the power data or information, displays the processed power data or information on the touch screen in real time, and transmits the power data or information to the local user information transmission module 4;
s6), the local user information transmission module 4 transmits the power data or information to the cloud 5.
Example 2
This example differs from example 1 in that: the power supply centralized monitoring system further comprises at least one repeater 7, each repeater 7 is connected between the upper CAN/RS485 bus 2 and the lower CAN/RS485 bus 2, and the repeaters 7 are used for forwarding the power supply data or information from the lower CAN/RS485 bus 2 to the upper CAN/RS485 bus 2.
In the embodiment, taking a CAN bus as an example, the CAN bus at the lowest level is connected to each power monitoring module 1, and then the CAN bus at the lowest level is connected to the CAN bus at the previous level through a repeater 7, so that the layers are classified, and finally the layers are connected to the control cabinet 3 through the CAN bus. Or, the power monitoring modules 1 are connected to the CAN buses at all levels, and the power monitoring modules 1 are correspondingly connected to the CAN buses from far to near according to the distance.
Specifically, the repeater 7 includes a first transceiver, a second transceiver, a first microcontroller 73, or further includes a first dial switch and a second dial switch.
The CAN bus communication method will be specifically described below. The first transceiver is a first CAN transceiver 71, the second transceiver is a second CAN transceiver 72, and the first CAN transceiver 71 and the second CAN transceiver 72 are used for transmitting data or information with CAN buses correspondingly connected with the first CAN transceiver 71 and the second CAN transceiver 72.
The first microcontroller 73 is used to process the received power data or information; and setting a value of a reception data filtering register and a value of a transmission data filtering register of the repeater 7, the reception data filtering of the repeater 7 being registered
The value of the register corresponds to the value of the transmission data filtering register of the power monitoring module 1, and the value of the transmission data filtering register of the repeater 7 corresponds to the value of the reception data filtering register of the control cabinet 3. The values of the receive data filter register and the values of the transmit data filter register are set with reference to table 1 and table 2 in embodiment 1, which is not described again.
The first dial switch is used for configuring ID information; the second dial switch is used for configuring a first baud rate, a second baud rate and a BOOT mode of the MCU. The first microcontroller 73 is also used to read ID information from the first dip switch; and for setting the ID information as the ID information of the relay 7; and for reading said first and second baud rates from said second dip switch; and for configuring said first baud rate to said first CAN transceiver 71 and said second baud rate to said second CAN transceiver 72; and for controlling the reception and transmission of data or information by said first and second CAN transceivers 71, 72.
In this embodiment, the first microcontroller 73, the second microcontroller, and the third microcontroller 33 are all provided with a receiving interrupt flag, wherein the third microcontroller 33 in the control cabinet 3 controls the communication interrupt of the whole system, so as to achieve real-time and orderly receiving and sending of data.
Method example 2
A monitoring method of a power centralized monitoring system comprises the following steps.
S1) the control cabinet 3 creates tasks including a power supply data or information acquisition task, a touch screen interface display task and a task of reading touch screen information instructions. The power data or information acquisition task is a main task.
S2) in the main task, the control cabinet 3 selects and establishes a communication method. Such as selecting the communication mode between each lower power supply data or information acquisition module and selecting the communication mode with the upper local user information transmission module 4.
And reading the operation instructions of the workers on the touch screen in real time at the task of reading the information instructions of the touch screen.
S7) the first microcontroller 73, the second microcontroller 11 and the third microcontroller configure respective information parameters including the respective ID information, baud rate of the respective transceivers, data sampling frequency.
S3) the control cabinet 3 controls the power supply monitoring module 1 to collect power supply data or information.
S4) the power supply monitoring module 1 transmits power supply data or information to the control cabinet 3 through the CAN/RS485 bus 2. When a repeater 7 is connected between the upper and lower two-level CAN/RS485 bus 2, the step S4) further includes the step that the power monitoring module 1 transmits power data or information to the repeater 7 through the CAN/RS485 bus 2, and the repeater 7 transmits the power data or information to the control cabinet 3 through the CAN/RS485 bus 2.
In order to improve the real-time performance of data transmission of the repeater 7, an interrupt mode is adopted for receiving the CAN message. Namely: when a message is received, its identifier is first compared to the filters configured in its identifier list mode. If the matching is successful, the message is stored in the associated FIFO, and the sequence number of the matched filter is stored in the filter matching sequence number; if there is no match, the message identifier is then compared to a filter configured in a mask bit pattern; if the message identifier does not match any of the identifiers in the filter, the hardware discards the message and does not cause any disruption to the software.
S5), the control cabinet 3 receives and processes the power data or information, displays the processed power data or information on the touch screen in real time, and transmits the power data or information to the local user information transmission module 4; the touch screen refreshes the display content of the interface at regular intervals (10 ms).
S6), the local user information transmission module 4 transmits the power data or information to the cloud 5.
It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are given by way of illustration of the invention and are not intended to limit the invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (5)
1. A power supply centralized monitoring system is characterized by comprising
The power supply monitoring module is used for monitoring power supply data or information corresponding to the power supply monitoring module;
the power monitoring module is connected to one corresponding CAN/RS485 bus;
each CAN/RS485 bus is connected to the control cabinet, and the CAN/RS485 bus is used for transmitting power supply data or information monitored by the power supply monitoring module to the control cabinet;
the control cabinet analyzes the received power supply data or information, displays the power supply data or information on a touch screen of the control cabinet, uploads the power supply data or information to a local user information transmission module in real time, and transmits the power supply data or information to a cloud end through the local user information transmission module;
the power supply device also comprises at least one repeater, each repeater is connected between the upper CAN/RS485 bus and the lower CAN/RS485 bus, and the repeaters are used for forwarding the power supply data or information from the lower CAN/RS485 bus to the upper CAN/RS485 bus; the power supply monitoring module is correspondingly connected to the CAN/RS485 bus from far to near according to the distance; the repeater comprises
A first dial switch and a second dial switch;
the first transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the first transceiver;
the second transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the second transceiver;
a first microcontroller for processing the received power data or information; setting a value of a received data filtering register and a value of a sent data filtering register of the repeater, wherein the value of the received data filtering register of the repeater corresponds to the value of the sent data filtering register of the power monitoring module, and the value of the sent data filtering register of the repeater corresponds to the value of the received data filtering register of the control cabinet;
the power supply monitoring module comprises
The fifth transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the fifth transceiver;
the second microcontroller is used for processing the monitored power supply data or information; setting the value of a data sending filter register of the power monitoring module;
the power monitoring modules are connected in a layered and graded mode in three connection modes from near to far, and when the monitoring nodes are close to the control cabinet and the number of the nodes is small, the power monitoring modules are directly mounted in a CAN/RS485 bus loop led out of the power control cabinet; when the number of the monitoring nodes is large and the monitoring nodes are far away from the control cabinet, the power supply monitoring module relays the monitoring nodes through the repeater so as to expand the bus distance and adjust the baud rate; when part of the monitoring nodes are far away, the control cabinet is led out to carry the close-range monitoring nodes, and the power supply monitoring module of the node far away from the control cabinet is relayed through the repeater.
2. The centralized power monitoring system of claim 1, wherein the control cabinet further comprises
The third transceiver is used for transmitting data or information with the CAN/RS485 bus correspondingly connected with the third transceiver;
the fourth transceiver is used for transmitting power supply data or information to the local user information transmission module;
a third microcontroller for processing the received power data or information; the value of the sending data filtering register of the control cabinet corresponds to the value of the receiving data filtering register of the local user information transmission module;
the SWD module is connected with the third microcontroller and is used for updating, downloading and debugging programs;
the EPROM module is connected with the third microcontroller and is used for storing data or information;
and the power supply module is connected with the third microcontroller and is used for providing power for the control cabinet.
3. The system of claim 2, wherein the third transceiver comprises a third CAN transceiver and/or a third RS485 transceiver;
the fourth transceiver comprises a fourth CAN transceiver and/or a WIFI communication module.
4. The system of claim 1, further comprising a client that obtains the power data or information from the cloud.
5. A monitoring method implemented by the centralized power monitoring system of claim 1, comprising the steps of,
s1) creating tasks by the control cabinet, wherein the tasks comprise a power supply data or information acquisition task, a touch screen interface display task and a task of reading a touch screen information instruction;
s2) selecting and establishing a communication mode by the control cabinet;
s3) the control cabinet monitors the power supply monitoring module to collect power supply data or information;
s4) the power supply monitoring modules are connected in a layered and graded mode in three connection modes from near to far, and when the monitoring nodes are near to the control cabinet and the number of the nodes is small, the power supply monitoring modules are directly mounted in a CAN/RS485 bus loop led out of the power supply control cabinet; when the number of the monitoring nodes is large and the monitoring nodes are far away from the control cabinet, the power supply monitoring module relays the monitoring nodes through the repeater so as to expand the bus distance and adjust the baud rate; when part of monitoring nodes are far away, a loop is led out from the control cabinet to mount the near-distance monitoring nodes, and a power supply monitoring module of the node far away from the control cabinet is relayed through a relay; the power supply monitoring module transmits power supply data or information to the control cabinet through a CAN/RS485 bus; each power supply monitoring module is used for transmitting corresponding power supply data or information, and a fifth transceiver of each power supply monitoring module transmits the data or information with a CAN/RS485 bus correspondingly connected with the fifth transceiver; the second microcontroller of the power supply monitoring module processes the monitored power supply data or information and sets the value of a data sending filter register of the power supply monitoring module;
when a repeater is connected between the upper-level CAN/RS485 bus and the lower-level CAN/RS485 bus, the step S4) further comprises the following steps that the power supply monitoring module transmits power supply data or information to the repeater through the CAN/RS485 bus, the repeater forwards the power supply data or information from the lower-level CAN/RS485 bus to the upper-level CAN/RS485 bus, and a first transceiver of the repeater transmits the data or information with the CAN/RS485 bus correspondingly connected with the first transceiver; the second transceiver of the repeater transmits data or information with the CAN/RS485 bus correspondingly connected with the second transceiver; a first microcontroller of the repeater processes received power supply data or information and a value of a sending data filtering register, wherein the value of the receiving data filtering register of the repeater corresponds to the value of the sending data filtering register of the power supply monitoring module, and the value of the sending data filtering register of the repeater corresponds to the value of the receiving data filtering register of the control cabinet;
s5) the control cabinet receives and processes the power supply data or information, displays the processed power supply data or information on the touch screen in real time, and transmits the power supply data or information to a local user information transmission module;
s6), the local user information transmission module transmits the power supply data or information to a cloud.
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| CN201345052Y (en) * | 2008-12-25 | 2009-11-11 | 山东申普汽车控制技术有限公司 | Control platform for embedded CAN bus controller |
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