CN109470965A - Free-standing feedback monitoring system - Google Patents
Free-standing feedback monitoring system Download PDFInfo
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- CN109470965A CN109470965A CN201910035288.9A CN201910035288A CN109470965A CN 109470965 A CN109470965 A CN 109470965A CN 201910035288 A CN201910035288 A CN 201910035288A CN 109470965 A CN109470965 A CN 109470965A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 110
- 238000004891 communication Methods 0.000 claims abstract description 22
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- 238000005070 sampling Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 14
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- 238000012806 monitoring device Methods 0.000 description 8
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses free-standing feedback monitoring systems, including input module, output module, measure monitor module, charge management module, electric discharge management module, super capacitor repid discharge module, communication module, control interface module, control module, power module, super capacitor, diode D11, diode D12, discharge resistance R11；Simple, compatible strong, lower-cost free-standing feedback monitoring system that the present invention provides designs.
Description
Technical field
The present invention relates to electronic technology fields, more specifically, it is related to free-standing feedback monitoring system.
Background technique
Intelligentized feature is presented in the control of domestic outdoor electrical equipment.One of important feature is to need long-range monitoring.
Since the classification of technology is very more, such as the control of power line carrier, ad hoc network short-distance wireless, LoRa, Zigbee
Level Deng, enterprise development is also different, simultaneously and deposits a large amount of technologies in many applications.
Typically by taking intelligent traffic lamp is applied as an example, different types of intelligence may be used in the same urban area
Energy traffic lights product, however different types of intelligent traffic lamp product may be variant or platform level simultaneous
Hold and needs very big cost.These products once go wrong or damage, it is difficult to accurate situation is learnt within first time, from
And notify that corresponding company is safeguarded.Therefore be badly in need of independent monitoring device in the market and carry out corresponding information feedback, and price at
Originally want low, versatility is eager to excel.
Develop a kind of inexpensive, easy to install, compatible strong monitoring device independently of other intelligence systems, it appears very
It is necessary.In addition to this application, there are also a large amount of similar applications of intelligent road-lamp, wisdom inspection well cover etc. this problem in reality.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, and it is simple, compatible strong, lower-cost free-standing anti-to provide design
Present monitoring system.
Technical scheme is as follows:
Free-standing feedback monitoring system, including input module, output module, measure monitor module, charge management module, discharge tube
Manage module, super capacitor repid discharge module, communication module, control interface module, control module, power module, super capacitor,
Diode D11, diode D12, discharge resistance R11；
Input module is connect with measure monitor module, and measure monitor module includes current sampling module, voltage sample module and letter
Processing module is ceased, the input terminal of current sampling module and the firewire of input module connect, two input terminals of voltage sample module
It is connect with the firewire of input module, zero curve, the output end of current sampling module and input terminal, the control switch of message processing module
One end of K11 connects, and the output end of voltage sample and the input terminal of message processing module connect, the output end of message processing module
It is connect with control module；The firewire of output module is connect with the other end of control switch K11, the third end of control switch K11
Mouth is connect with control module.The zero curve of input module and the zero curve of output module connect；
Power module is connect with input module, measure monitor module, control module, power down reporting module；Wherein power down reports mould
Block includes charging module, discharge module, super capacitor, super capacitance management module, diode and load resistance R11；Diode
Including first diode D11, the second diode D12；The connection of the both ends of charging module and super capacitor, and it is super with discharge module
The connection of capacitance management module, super capacitance management module connect load resistance；The junction of charging module and power module and the
The anode of two diode D12 connects, cathode, control circuit and the communication of the cathode and first diode D11 of the second diode D12
The anode of circuit connection, the second diode is connect with discharge module, and capacitor C12 is connected on discharge module.
Further, input module accesses alternating current to connect power supply；
Output module connects the various equipment for needing to monitor, control to connect load；
The external output digit signals of control interface module or analog signal；
Communication module is transmitted to signal, carries out wireless signal transmission by antenna；
Charge management circuit module for super capacitor to charge；
Discharging management circuit module is discharged to super capacitor to be managed；
Quick release of the super capacitor repid discharge module to super capacitor energy；
Measure monitor module obtains voltage, electric current, power, power factor and electricity consumption to acquire city's power information, and by processing
Measure information；Current sampling module in measure monitor module is series on the L line of output module, and voltage sample wired in parallel is in defeated
Enter on the L line and N line of module, signal processing module is connected with control module for information exchange；
Power module uses AC/DC power module, when working normally under alternating current to device, to measure monitor module, control
Module, communication module are powered, and are super capacitor charging by charge management circuit；
Super capacitor C11 is used for energy storage；
Output voltage of the diode D11 and diode D12 for isolated power supply module and management module of discharging；
Control module is connected with measure monitor module, communication module, control interface module, super capacitor repid discharge module.
The present invention uses simple circuit structure, the strong free-standing feedback monitoring system of compatibility compared to traditional mode
Applicability of uniting is wide, at low cost, is easy to promote the use of.
Detailed description of the invention
Fig. 1 is apparatus of the present invention circuit diagram；
Fig. 2 is the circuit diagram of charge management module of the invention；
Fig. 3 is the circuit diagram of another charge management module of the invention；
Fig. 4 is the circuit diagram of electric discharge management module of the invention；
Fig. 5 is the circuit diagram of super capacitor repid discharge of the invention；
Fig. 6 is a kind of strategic process figure of super capacitor repid discharge of the invention；
Fig. 7 is another strategic process figure of super capacitor repid discharge of the invention；
Fig. 8 is the physical circuit figure of control interface module of the invention；
Fig. 9 is power control procedures figure of the invention；
Figure 10 is three kinds of common dimming curve figures；
Figure 11 is write-in ID number method flow chart of the invention；
Figure 12 is that present device generates pseudo random number method flow chart；
Figure 13 is that server of the invention generates random number flow chart；
Figure 14 is RC circuit generating random number method circuit diagram of the invention；
Figure 15 is voltage generating random number method circuit diagram of the invention；
Figure 16 is electric current generating random number method circuit diagram of the invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.It should be appreciated that tool described herein
Body embodiment only to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
As shown in Figure 1, free-standing feedback monitoring device, including input module, output module, measure monitor module, Charge Management
Module, electric discharge management module, super capacitor repid discharge module, communication module, control interface module, control module, power supply mould
Block, super capacitor, diode D11, diode D12, discharge resistance R11.
Input module accesses alternating current to connect power supply.
Output module connects the various equipment for needing to monitor, control to connect load.
The external output digit signals of control interface module or analog signal, such as 0-10V signal, pwm signal etc..
Communication module is transmitted to signal, carries out wireless signal transmission by antenna.
Charge management circuit module for super capacitor to charge.
Discharging management circuit module is discharged to super capacitor to be managed.
Quick release of the super capacitor repid discharge module to super capacitor energy.
Measure monitor module to acquire city's power information, and by processing obtain voltage, electric current, power, power factor and
The information such as electricity consumption.Current sampling module in measure monitor module is series on the L line of output module, and voltage sample module is simultaneously
It is coupled on the L line and N line of input module, signal processing module is connected with control module for information exchange.
Power module use AC/DC power module, when being worked normally under alternating current to device, to measure monitor module,
Control module, communication module are powered, and are super capacitor charging by charge management circuit.
Super capacitor C11 is used for energy storage, compares other energy storage devices, longer life expectancy.
Output voltage of the diode D11 and diode D12 for isolated power supply module and management module of discharging.
Control module and measure monitor module, communication module, control interface module, super capacitor repid discharge module phase
Even.
Input module is connect with measure monitor module, and measure monitor module includes current sampling module, voltage sample module
And message processing module, the input terminal of current sampling module and the firewire of input module connect, two of voltage sample module are defeated
Enter firewire, the zero curve connection at end and input module, input terminal, the control of the output end and message processing module of current sampling module
One end of switch K11 connects, and the output end of voltage sample and the input terminal of message processing module connect, message processing module it is defeated
Outlet is connect with control module；The firewire of output module is connect with the other end of control switch K11, the third of control switch K11
A port is connect with control module.The zero curve of input module and the zero curve of output module connect.
Power module is connect with input module, measure monitor module, control module, power down reporting module.Wherein in power down
Reporting module includes charging module, discharge module, super capacitor, super capacitance management module, diode and load resistance R11.Two
Pole pipe includes first diode D11, the second diode D12.The connection of the both ends of charging module and super capacitor, and and discharge module
The connection of super capacitance management module, super capacitance management module connect load resistance.The junction of charging module and power module
Connect with the anode of the second diode D12, the cathode of the cathode of the second diode D12 and first diode D11, control circuit and
Telecommunication circuit connection, the anode of the second diode are connect with discharge module, and capacitor C12 is connected on discharge module.Wherein, using super
Grade capacitor is because its service life is longer than other components as energy storage.Load resistance R11, quickly putting when discharging
Whether electricity is main easy to produce rear, qualified for quick monitoring device itself.
Embodiment 2:
As shown in Fig. 1 to Figure 16, free-standing feedback monitoring device, including input module, output module, measure monitor module, fill
Electric management module, electric discharge management module, super capacitor repid discharge module, communication module, control interface module, control module,
Power module, super capacitor, diode D11, diode D12, discharge resistance R11.
Input module accesses alternating current to connect power supply.
Output module connects the various equipment for needing to monitor, control to connect load.
The external output digit signals of control interface module or analog signal, such as 0-10V signal, pwm signal etc..
Communication module is transmitted to signal, carries out wireless signal transmission by antenna.
Charge management circuit module for super capacitor to charge.
Discharging management circuit module is discharged to super capacitor to be managed.
Quick release of the super capacitor repid discharge module to super capacitor energy.
Measure monitor module to acquire city's power information, and by processing obtain voltage, electric current, power, power factor and
The information such as electricity consumption.Current sampling module in measure monitor module is series on the L line of output module, and voltage sample module is simultaneously
It is coupled on the L line and N line of input module, signal processing module is connected with control module for information exchange.
Power module use AC/DC power module, when being worked normally under alternating current to device, to measure monitor module,
Control module, communication module are powered, and are super capacitor charging by charge management circuit.
Super capacitor C11 is used for energy storage, compares other energy storage devices, longer life expectancy.
Output voltage of the diode D11 and diode D12 for isolated power supply module and management module of discharging.
Control module and measure monitor module, communication module, control interface module, super capacitor repid discharge module phase
Even.
Input module is connect with measure monitor module, and measure monitor module includes current sampling module, voltage sample module
And message processing module, the input terminal of current sampling module and the firewire of input module connect, two of voltage sample module are defeated
Enter firewire, the zero curve connection at end and input module, input terminal, the control of the output end and message processing module of current sampling module
One end of switch K11 connects, and the output end of voltage sample and the input terminal of message processing module connect, message processing module it is defeated
Outlet is connect with control module；The firewire of output module is connect with the other end of control switch K11, the third of control switch K11
A port is connect with control module.The zero curve of input module and the zero curve of output module connect.
Power module is connect with input module, measure monitor module, control module, power down reporting module.Wherein in power down
Reporting module includes charging module, discharge module, super capacitor, super capacitance management module, diode and load resistance R11.Two
Pole pipe includes first diode D11, the second diode D12.The connection of the both ends of charging module and super capacitor, and and discharge module
The connection of super capacitance management module, super capacitance management module connect load resistance.The junction of charging module and power module
Connect with the anode of the second diode D12, the cathode of the cathode of the second diode D12 and first diode D11, control circuit and
Telecommunication circuit connection, the anode of the second diode are connect with discharge module, and capacitor C12 is connected on discharge module.Wherein, using super
Grade capacitor is because its service life is longer than other components as energy storage.Load resistance R11, quickly putting when discharging
Whether electricity is main easy to produce rear, qualified for quick monitoring device itself.
As shown in Fig. 2, the charge management circuit of free-standing feedback monitoring device.Its V2in+ and V2in- and power module
Output positive and negative charge is connected, and V2out+ and V2out- are connected with the positive and negative anodes of super capacitor.
It further includes processor of single chip computer U21, capacitor C21, capacitor C22, capacitor C23, inductance L21, inductance L22, two poles
Pipe D21, switch Q21, resistance R22, resistance R23, current-limiting resistance R21.Wherein, the both ends of capacitor C21 are as input terminal, capacitor
One end connection of one end of C21 and the anode of input terminal, one end of inductance L21, processor of single chip computer U21；Inductance L21's is another
End is connect with one end of one end of switch Q21, capacitor C22；The other end of capacitor C22 and one end, the diode D21 of inductance L22
Anode connection；The cathode of diode D21 and one end of one end of current-limiting resistance R21, one end of capacitor C23, resistance R22 connect
It connects；The other end of resistance R22 is connect with one end of processor of single chip computer U21, resistance R23；The other end and input terminal of capacitor C21
Cathode, the other end of switch Q21, the other end of inductance L22, capacitor C23 other end connection, and the yin as output end
Pole.Anode of the other end of current-limiting resistance R21 as output.
The effect of resistance R21 is to avoid the excessive damage diode D21 of electric current when for super capacitor charging.Current limliting is played to make
With.
As shown in figure 3, being another circuit of Charge Management, using the control mode of current feedback and Voltage Feedback.
It can be replaced mutually with Fig. 2 scheme.
Its feedback control module for specifically including charging module, capacitor C31, capacitor C32, capacitor C33, inductance L31, inductance
L32, diode D31, switch Q31, sampling resistor R31.Wherein, the both ends of capacitor C31 are as input terminal, one end of capacitor C31
It is connect with one end of the anode of input terminal, one end of inductance L31, feedback control module；The other end and switch Q31 of inductance L31
One end, capacitor C32 one end connection；The other end of capacitor C32 is connect with the anode of one end of inductance L32, diode D31；
The cathode of diode D31 is connect with one end of one end of capacitor C33, resistance R32；The other end and feedback control mould of resistance R32
One end connection of block, resistance R33；The other end and the cathode of input terminal of capacitor C31, the other end of switch Q31, inductance L32
One end connection of the other end, the other end of capacitor C33, sampling resistor R31, the other end and feedback control mould of sampling resistor R31
Cathode of the one end of block together as output end.Anode of the one end of capacitor C33 as output.
Wherein, feedback control module by a processor of single chip computer, two operational amplifiers, 11 resistance, two capacitors,
Two diodes and photoelectrical coupler.Processor of single chip computer U31, operational amplifier U32, operational amplifier U33；11 resistance point
Not Wei resistance R32, resistance R33, resistance R34, resistance R35, resistance R36, resistance R37, resistance R38, resistance R39, resistance R310,
Resistance R311, resistance R312；Two capacitors include capacitor C34, capacitor C35；Two diodes are respectively diode D32, two poles
Pipe D33.
One end of processor of single chip computer U31 and resistance R312, photoelectrical coupler, one end of resistance R310, resistance R311
One end connection of one end, one end of resistance R36, resistance R37；The other end of resistance R312 is connect with photoelectrical coupler, photoelectricity coupling
One end of clutch is connect with the anode of the anode of diode D32, diode D33；The cathode of diode D32 and the one of capacitor C34
End, operational amplifier U32 connection；The other end of capacitor C34 is connect with one end of resistance R35；The other end and resistance of resistance R35
One end of R34, operational amplifier U32 connection, the other end and the other end of resistance R32, one end of resistance R33 of resistance R34 connect
It connects；Wherein one end of operational amplifier U32 is connect with the other end of resistance R36.The cathode of diode D33 and the one of capacitor C35
End, operational amplifier U33 connection；The other end of capacitor C35 is connect with one end of resistance R39；The other end and resistance of resistance R39
One end of R38, operational amplifier U33 connection, the other end of resistance R38 are connected with one end of resistance R31；Operational amplifier U33
Wherein one end connect with the other end of resistance R310, the other end of resistance R311 ground connection.
Fig. 4 is discharging management circuit figure, and the major function of this circuit is device in the case where alternating current power-off, allows super electricity
Holding is that control module and communication module are powered, and module is made to report alternating current exception information to server.Super capacitor is discharging
Voltage can gradually decrease when energy, and special discharging management circuit ensure that when super-capacitor voltage gradually decreases as control module
With the stability of communication module supply voltage.
The V4in+ and V4in- of the circuit are connected with the positive and negative anodes of super capacitor.The sun of V4out+ and isolating diode D11
Extremely it is connected.V4out- is connected with the ground connection of control module and communication module.
It includes processor of single chip computer U41, capacitor C41, capacitor C42, capacitor C43, inductance L41, inductance L42, diode
D41, switch Q41, resistance R41, resistance R42.Wherein, the both ends of capacitor C41 are as input terminal, one end of capacitor C41 and input
One end connection of the anode at end, one end of inductance L41, processor of single chip computer U41；The other end of inductance L41 and the one of switch Q41
One end connection at end, capacitor C42；The other end of capacitor C42 is connect with the anode of one end of inductance L42, diode D41；Two poles
The cathode of pipe D41 is connect with one end of one end of current-limiting resistance R41, capacitor C43；The other end and single-chip microcontroller of resistance R41 is handled
One end connection of device U41, resistance R42；The other end and the cathode of input terminal, the other end of switch Q41, the inductance L42 of capacitor C41
The other end, capacitor C43 other end connection, and the cathode as output end.Sun of the cathode of diode D41 as output
Pole.
It is illustrated in figure 5 super capacitor quick discharging circuit, its purpose is to when program of device upgrading or production maintenance
It needs the electricity quick release of super capacitor.Specifically further include super capacitor C11, load resistance R11, switch Q51(using after
Electric appliance, metal-oxide-semiconductor or triode etc.)；When processor of single chip computer U51 receives the instruction for needing to discharge, control Q51 closure, at this time
Super capacitor just passes through load resistance R11 and releases energy.The positive and negative anodes phase of V5in+ and V5in- and super capacitor C11 in Fig. 5
Even, V5out+ and V5out- are connected with the both ends load resistance R11.
It is as follows that super capacitor repid discharge specifically executes method: concrete operations process is as shown in fig. 6, circuit is in Fig. 1
Control module, control interface module, Fig. 5 circuit and Fig. 8 circuit, when short circuit occurs for the output end of control interface module in Fig. 1,
Processor of single chip computer U81 can detect interface circuit short-circuit condition, and this information is fed back to control circuit module, list at this time
Piece machine processor U51 receives this information and starts to execute electric discharge instruction.
Another specific execution method of super capacitor repid discharge is as follows: periodically powered on using home-built equipment to device,
The mode of power-off carries out control of discharge.Control flow such as Fig. 7, circuit are input module, power module, control circuit in Fig. 1
Module (including timer, counter) and Fig. 5 circuit.When producing maintenance maintenance device, device input termination is periodically
(such as: power on 5S, power-off 5S) power supply (using DC low-voltage) voltage, control module detects the voltage of AC/DC module at this time
Signal.Timer difference timing power-on time and power-off time in control circuit module, for judging external signal whether just
Often, when the value of timer reaches setting value (may be configured as 10 times), flip-flop number starts to count upper power-off number
Number is then judged to needing to be implemented electric discharge instruction, processor of single chip computer U51 is turned off the switch at this time when count value reaches setting value
Q51 starts to carry out repid discharge to super capacitor.
It is illustrated in figure 8 the physical circuit figure of control interface module, this function is to have light modulation primarily directed to load equipment
The equipment such as the LED control device of mode, electric ballast.It, which is exported, can produce two kinds of signals one is analog signal 0-10V,
One is digital signal PWM.Judge the dimming mode of load equipment, by device itself to select matched control signal.Three
Output of the pole pipe Q81 to control digital signal PWM wave, output of the triode Q82 to control analog signal 0-10V.Operation
Amplification of the amplifier U82 to signal, Buffer output of the operational amplifier U83 to signal.
It includes nine resistance, a capacitor, two triodes, a processor of single chip computer and two operational amplifiers；
Wherein processor of single chip computer U81 wherein three pins respectively with one end of resistance R81, one end of resistance R82, resistance R83 one
One end connection at end, resistance R84, resistance R83 connect the same pin with resistance R82；The other end of resistance R81, resistance R82
The other end is connect with the base stage of triode Q81, emitter respectively；The other end of resistance R83 and one end, the triode of capacitor C81
The emitter of Q82 connects, and one end of resistance R84 is connect with the base stage of triode Q82；Collector, the triode of triode Q81
The collector of Q82 is connect with one end of resistance R85, and the other end of resistance R85 is connect with the positive pin of operational amplifier U82；
The negative pin of operational amplifier U82 is connect with one end of one end of resistance R86, resistance R87；The other end and fortune of resistance R87
Calculate the positive pin connection of a pin, operational amplifier U83 of amplifier U82；The negative pin and fortune of operational amplifier U83
Calculate one end connection of the output pin of amplifier U82, one end of resistance R88, resistance R89；The other end, the resistance R89 of resistance R88
The other end respectively as external tapping tie point.
It is illustrated in figure 9 power control procedures figure.This function is to have the LED of dimming mode to control primarily directed to load equipment
The equipment that device processed, electric ballast etc. need power regulation.
LED control device/electric ballast adjusting power mode on the market mainly has tri- kinds of 0-10V, 1-10V, PWM at present
Mode.The external device with dim signal of LED control device/electric ballast dimming interface exports electric current realization to adjust it
Power regulation.For example, three kinds of dimming curves are as schemed there are three types of the dimming modes of the LED control device filled on same path
Shown in 10, then the power that just will appear each lamp when executing unified dimmer command using traditional controller for road lamp occurs very
The problems such as large deviation, even road uneven illumination.
This partial circuit is control interface module, control module, measure monitor module in Fig. 1, wherein control interface mould
The connection of the adjusting power interface circuit of block and load equipment.(include in the power adjustment instruction when device receives power adjustment instruction
Need the performance number of load operation) when, power detection, and the reality for the load equipment that will test are carried out by measure monitor module
Border performance number is sent to control circuit, and control circuit will test value and target value compares, when detected value is equal to target value, then
It is acted without power adjustment, the performance number is directly written in memory.When detected value is not equal to target value, control circuit
Control interface makes it through the power for changing 0-10V voltage or PWM to adjust load equipment, until power reaches target
Value, final performance number is written in memory.
Random number generation mechanism, if NB-loT is an Internet of Things transmission mode now with fastest developing speed, he supports big face
Product application, but do not support simultaneously online or the very strong application scenarios of real-time, if having simultaneously the equipment of a large amount of NB-loT to
Server sends data, can cause server blocks, or causes that network is blocked or even equipment may be put on the blacklist,
Cause the unstable of whole system, causes to judge abnormal judgement etc. by accident.How to solve the problems, such as number of concurrent, is answered in most of common
With in scene, in order to reduce, the power consumption of equipment is reduced, it generally can be using the upward photos and sending messages of equipment active by NB-loT to service
Device, but it is difficult the transmission that coordinated control NB-loT equipment carries out information.Such as in the same local area network, there are many NB-loT
Equipment (in a free-standing for feedback monitoring device), if this local area network in the electricity went off, the equipment of these NB-loT is almost
The problem of meeting be detected in synchronization, all can up be sent out, and very maximum probability is blocked, so as to cause sending times increasing, and
The obstruction of the network equipment, and probably equipment is caused to be judged by accident, and will be considered that is blacklist.
The random of itself is passed through when each NB-loT equipment being allowed to report server to same event using nonce mechanism
Number generates one and prolongs at random, reduces the number of concurrent under same time, same event by such method.How to generate random
Number, specific method include writing ID number method, equipment generation pseudo random number method, server to generate random number method and the life of circuit random number
Cheng Fa.Specifically as shown in Figure 11 to Figure 16.
It is specific as follows to write ID number method: according to ID coding method, writing unique ID number for each product of different batches.
It further include memory module in Fig. 1 control circuit, equipment is written unique ID number in production, for each equipment, is stored in storage
In module.The step of write-in, is as shown in figure 11, when being only written successfully, can just stop being written, and otherwise can unanimously prompt accordingly not
Successful information.
It is specific as follows that equipment generates pseudo random number method: each equipment is stored in a pseudo random number, exactly dispatches from the factory before factory
The preceding fixed random number generated by computer, the random number and ID number are not related, and are equally existed memory module
In.
It is specific as follows that server generates random number method: server distributes where equipment, i.e., by server according to equipment institute
In region, random number is distributed unitedly, all there are in memory module by the information.
Circuit generating random number method includes RC circuit generating random number method, voltage generating random number method and adopts electric current random number
Method of formation.
RC circuit generating random number method is specific as follows.As shown in figure 14, control circuit and storage circuit, resistance R141, electricity
Hold C141 connection.Due to resistance value, capacitance all Normal Distributions, so the voltage in distinct device RC circuit on capacitor has
There is discreteness.
When 3.3V voltage is added on R141 and C141 circuit, control circuit start the voltage on sampling capacitance C141 and by
When millisecond meter, when the voltage on C141 reaches the 2.5V of setting, control circuit is up to the expansion of time required for 2.5V hundred
Again or thousand times as final random number deposit storage circuit.
Voltage generating random number method.Physical circuit is added in resistance R141 and resistance as shown in Figure 15, by 3.3V or 5V
R152 composition bleeder circuit on, due to resistance value discreteness and apply alive discreteness, the voltage on R152 have from
Dissipate property.The discrete type voltage data acquisition that control circuit is then formed resistance R151 and resistance R152 is returned, and expands hundred times or thousand
Times, it is deposited into storage circuit as random number.
Electric current generating random number method, as shown in Figure 16, circuit is mainly by input circuit, output circuit, metering for physical circuit
Observation circuit, control circuit, storage circuit composition.Due to the discreteness of line voltage, and the load-carrying difference of each device institute,
The discreteness of mains current in each equipment is very big.By measure monitor module, the mains current value in every equipment is measured,
And it is transmitted to control circuit, control circuit multiplied by coefficient, stores the current value as random number into storage circuit.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make several improvements and modifications, these improvements and modifications also should be regarded as
In the scope of the present invention.
Claims (2)
1. free-standing feedback monitoring system, it is characterised in that: including input module, output module, measure monitor module, charging valve
Manage module, electric discharge management module, super capacitor repid discharge module, communication module, control interface module, control module, power supply
Module, super capacitor, diode D11, diode D12, discharge resistance R11；
Input module is connect with measure monitor module, and measure monitor module includes current sampling module, voltage sample module and letter
Processing module is ceased, the input terminal of current sampling module and the firewire of input module connect, two input terminals of voltage sample module
It is connect with the firewire of input module, zero curve, the output end of current sampling module and input terminal, the control switch of message processing module
One end of K11 connects, and the output end of voltage sample and the input terminal of message processing module connect, the output end of message processing module
It is connect with control module；The firewire of output module is connect with the other end of control switch K11, the third end of control switch K11
Mouth is connect with control module；
The zero curve of input module and the zero curve of output module connect；
Power module is connect with input module, measure monitor module, control module, power down reporting module；Wherein power down reports mould
Block includes charging module, discharge module, super capacitor, super capacitance management module, diode and load resistance R11；Diode
Including first diode D11, the second diode D12；The connection of the both ends of charging module and super capacitor, and it is super with discharge module
The connection of capacitance management module, super capacitance management module connect load resistance；The junction of charging module and power module and the
The anode of two diode D12 connects, cathode, control circuit and the communication of the cathode and first diode D11 of the second diode D12
The anode of circuit connection, the second diode is connect with discharge module, and capacitor C12 is connected on discharge module.
2. stand alone type feedback monitoring system according to claim 1, it is characterised in that:
Input module accesses alternating current to connect power supply；
Output module connects the various equipment for needing to monitor, control to connect load；
The external output digit signals of control interface module or analog signal；
Communication module is transmitted to signal, carries out wireless signal transmission by antenna；
Charge management circuit module for super capacitor to charge；
Discharging management circuit module is discharged to super capacitor to be managed；
Quick release of the super capacitor repid discharge module to super capacitor energy；
Measure monitor module obtains voltage, electric current, power, power factor and electricity consumption to acquire city's power information, and by processing
Measure information；Current sampling module in measure monitor module is series on the L line of output module, and voltage sample wired in parallel is in defeated
Enter on the L line and N line of module, signal processing module is connected with control module for information exchange；
Power module uses AC/DC power module, when working normally under alternating current to device, to measure monitor module, control
Module, communication module are powered, and are super capacitor charging by charge management circuit；
Super capacitor C11 is used for energy storage；
Output voltage of the diode D11 and diode D12 for isolated power supply module and management module of discharging；
Control module is connected with measure monitor module, communication module, control interface module, super capacitor repid discharge module.
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| CN110658757A (en) * | 2019-09-20 | 2020-01-07 | 烟台英博新材料科技有限公司 | Wireless feedback device |
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