CN106444727A - Programmable lumped remote measurement and control device for smart miniature circuit breaker - Google Patents

Programmable lumped remote measurement and control device for smart miniature circuit breaker Download PDF

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Publication number
CN106444727A
CN106444727A CN201611080567.XA CN201611080567A CN106444727A CN 106444727 A CN106444727 A CN 106444727A CN 201611080567 A CN201611080567 A CN 201611080567A CN 106444727 A CN106444727 A CN 106444727A
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China
Prior art keywords
resistance
electric capacity
chip
circuit
termination
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Inventor
汪先兵
王欢
彭靳
张政
王祥傲
叶玺臣
庞军
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Chuzhou University
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Chuzhou University
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Priority to CN201611080567.XA priority Critical patent/CN106444727A/en
Publication of CN106444727A publication Critical patent/CN106444727A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24065Real time diagnostics

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a programmable lumped remote measurement and control device for a smart miniature circuit breaker, and belongs to the technical field of low-voltage circuit breaker control. The programmable lumped remote measurement and control device comprises a main control module, a communication module, a digital quantity input module, a digital quantity output module, an analog quantity input module and a communication module, and is used for acquiring real-time data of metering parameters such as a switch-on/off state, current, voltage, power and electric energy of the miniature circuit breaker, and transmitting the acquired data to a monitoring center in real time. By adopting the programmable lumped remote measurement and control device, remote measurement and control functions are realized, and the requirement on networking of smart electrical appliance equipment is met.

Description

The programmable lump remote monitor device of intelligent micro-circuit breaker
Technical field
The invention discloses the programmable lump remote monitor device of intelligent micro-circuit breaker, belongs to low-voltage circuit breaker control Technical field.
Background technology
Miniature circuit breaker is widest a kind of terminal protection electrical equipment used in electric terminal power distribution equipment.With national intelligence The proposition of energy electrical network, popularization in ammeter box uses the pre-paying kilowatt-hour meter special intelligent miniature circuit breaker with automatic reclosing, During subscriber arrearage, pre-paying kilowatt-hour meter controls this definite purpose circuit breaker dropout tripping operation, with power supply of the cut-out to user, realizes user and exists Deficient electricity charge situation cannot power taking function.In the case that user continues to pay dues connection power supply, special intelligent miniature circuit breaker can be real Existing automatic reclosing.Meanwhile, with the arrival of the Internet of things era, smart home gradually walks close to ordinary people family, and this is to various intelligence The group-net communication of the intelligent electric appliances such as energy miniature circuit breaker, smart jack is put forward higher requirement, and needs intelligent electric meter The switch such as the miniature circuit breaker of case, chopper of home terminal realizes lump collection and control, can realize under normal condition Manual and remote operation, remotely obtains the real time data of the measuring parameters such as on off state, electric current, voltage, power, electric energy.It is based on This, the present invention proposes a kind of programmable lump remote monitor device of miniature circuit breaker.
Content of the invention
The goal of the invention of the present invention is the deficiency for above-mentioned background technology, there is provided intelligent micro-circuit breaker programmable Lump remote monitor device, it is achieved that the lump collection of the information such as circuit breaker switch state and measuring parameter and remotely control, solution Determine and how to have met the technical problem of intelligent electric appliance networking requirements.
The present invention is adopted the following technical scheme that for achieving the above object:
The programmable lump remote monitor device of intelligent micro-circuit breaker, including:
Analog input mModule, the analogue signal of its input termination lump collection, detects the mould in the analogue signal of lump collection Intend current signal or analog voltage signal and the analogue signal to detecting carry out analog digital conversion, digital sample values are exported,
Digital quantity input module, the digital voltage signal of its input termination lump collection, digital voltage signal is first isolated Output relay intake after the process of analysis afterpulse count calibrations,
Main control module, its FPDP connects the outfan of Analog input mModule, its digital quantity input termination digital quantity input mould The outfan of block, according to digital sample values and the relay intake output relay amount of outputing,
Digital output module, the digital output end of its input termination main control module, according to the relay of main control module output The amount of outputing control relay is switched off or is closed, and,
Communication module, is connected with the COM1 of main control module, realizes the interaction of information between main control module and miniature circuit breaker.
As the further prioritization scheme of the programmable lump remote monitor device of intelligent micro-circuit breaker, analog input Module, including:
Current/voltage selection signal Treatment Analysis circuit, the analogue signal of its input termination lump collection, detects lump collection Analogue signal sampled value is exported after analog voltage signal or analog current signal in analogue signal,
High-precision adc change-over circuit, the outfan of its input termination current/voltage selection signal Treatment Analysis circuit, to simulation Signal sampling value exports digital sample values after carrying out analog digital conversion, and,
Magnetic coupling isolation circuit, the outfan of its input termination high-precision adc change-over circuit, output digital sample values are to main control module FPDP.
As the further prioritization scheme of the programmable lump remote monitor device of intelligent micro-circuit breaker,
The digital quantity input module, including:
Voltage signal isolation processing analysis circuit, the digital voltage signal of its input termination lump collection, export mould to be calibrated Intend signal, and,
Step-by-step counting waveform calibrates circuit, and one input end connects reference analog signal, the simulation of its another input reception calibration Signal, the digital quantity input of output relay intake to main control module;
The digital output module, including:
Electrical isolation modular circuit, the digital output end of its input termination main control module, and,
The relay amount of outputing circuit, the outfan of its input termination electrical isolation modular circuit, the output relay amount of outputing.
Further, intelligence is may be programmed in the Analog input mModule of lump remote monitor device,
Current/voltage selection signal Treatment Analysis circuit includes:47th resistance, the 48th resistance, the 49th resistance, 20th electric capacity, jumper terminal, wherein, one end of the 47th resistance, one end of the 48th resistance connect together reception The analogue signal of lump collection, the Single port of another termination jumper terminal of the 48th resistance, one end of the 49th resistance Connect the another port of jumper terminal, the other end of the 47th resistance, a pole of the 20th electric capacity, the 49th resistance another After holding and connecing as current/voltage selection signal Treatment Analysis circuit outfan, the 20th electric capacity another pole, jumper terminal Earth terminal all connects the ground of simulated measurement input circuit power supply;
High-precision adc change-over circuit includes:21st electric capacity, the 22nd electric capacity, the 23rd electric capacity, modulus high accuracy turn Chip is changed, wherein, the simulation input of modulus high accuracy conversion chip terminates the defeated of current/voltage selection signal Treatment Analysis circuit Go out end, the external reference of a pole, the positive plate of the 22nd electric capacity of the 21st electric capacity all with modulus high accuracy conversion chip Buffer output end, the positive plate of the 23rd electric capacity connects the external reference buffer input of modulus high accuracy conversion chip, Another pole of the 21st electric capacity, the negative plate of the 22nd electric capacity, the negative plate of the 23rd electric capacity, modulus high accuracy are changed The earth terminal of chip all connects the ground of simulated measurement input circuit power supply;
Magnetic coupling isolation circuit includes:Magnetic coupling isolating chip, audion, the 50th resistance, the 51st resistance, magnetic coupling isolated core Second Enable Pin and the second supply port of piece all connect the power supply of simulated measurement input circuit, and the A channel of magnetic coupling isolating chip is defeated Go out to terminate the conversion start end of modulus high accuracy conversion chip, the channel B output termination modulus high accuracy of magnetic coupling isolating chip The shift clock end of conversion chip, the numeral letter of the C-channel output termination modulus high accuracy conversion chip of magnetic coupling isolating chip Number input, the D path input of magnetic coupling isolating chip connects the digital signal Shift outputs of modulus high accuracy conversion chip, The interrupt signal of the A channel input termination main control module output of magnetic coupling isolating chip, the channel B input of magnetic coupling isolating chip End, C-channel input, D channel output end are connected with main control module FPDP by spi bus, magnetic coupling isolating chip First Enable Pin is connected with one end of the 51st resistance, the colelctor electrode of audion, and the other end of the 51st resistance receives master The interrupt signal of control module output, the base stage of audion connects one end of the 50th resistance, the other end of the 50th resistance, magnetic coupling First supply port of isolating chip all connects the power supply of main control module, and the emitter stage of audion, the first of magnetic coupling isolating chip connect Ground terminal all connects the ground of main control module power supply, the ground of the second ground connection termination simulated measurement input circuit power supply of magnetic coupling isolating chip.
Further, in the digital quantity input module of programmable lump remote monitor device,
Voltage signal isolation processing analysis circuit includes:37th resistance, the 38th resistance, the 4th optocoupler, the 3rd unidirectional Transient supression diode, the 19th electric capacity, the 39th resistance, the 40th resistance, one numeral of a termination of the 37th resistance Voltage signal, the other end of the 37th resistance, one end of the 38th resistance are all connected with the anode of the 4th optocoupler, and the 30th The other end of eight resistance, the negative electrode of the 4th optocoupler all connect another digital voltage signal, the sun of the 3rd unidirectional transient supression diode Pole, one end of the 39th resistance, one end of the 40th resistance, the one of the 19th electric capacity are extremely all connected with the colelctor electrode of the 4th optocoupler Connect, the negative electrode of the 3rd unidirectional transient supression diode and the other end of the 39th resistance simultaneously connect and be followed by direct voltage source, the tenth The emitter stage of another pole of nine electric capacity and the 4th optocoupler all connects the ground of direct voltage source, and the other end of the 40th resistance is used as voltage The outfan of signal isolation Treatment Analysis circuit;
Step-by-step counting waveform calibration circuit includes:41st resistance, the 42nd resistance, the 43rd resistance, the 44th Resistance, high-accuracy voltage comparable chip, the 42nd resistance one termination direct voltage source, the other end of the 42nd resistance and One end of 41st resistance is all connected with the negative pole of high-accuracy voltage comparable chip, another termination direct current of the 41st resistance The ground of voltage source, one end of the positive pole of high-accuracy voltage comparable chip and the 43rd resistance is all divided with voltage signal isolation processing The outfan connection of analysis circuit, the other end of the 43rd resistance, one end of the 44th resistance, high-accuracy voltage comparable chip Outfan and be connected with the digital quantity input of main control module after connecing, another termination direct voltage source of the 44th resistance.
Further, in the digital output module of programmable lump remote monitor device,
Electrical isolation modular circuit includes:45th resistance, the 5th optocoupler, the 46th resistance, the one of the 45th resistance The digital output end of termination main control module, the negative electrode of the 5th optocoupler of another termination of the 45th resistance, the sun of the 5th optocoupler Pole connects the power supply of main control module, and the colelctor electrode of the 5th optocoupler connects DC source, and the emitter stage of the 5th optocoupler connects the 46th resistance One end, the other end of the 46th resistance is used as the outfan of electrical isolation modular circuit;
The relay amount of outputing circuit includes driving chip and relay, the input termination electrical isolation modular circuit of driving chip Outfan, one end of the output relay termination coil of driving chip, the other end of relay coil and the power supply of driving chip Port all connects DC source, the ground of the ground connection termination DC source of driving chip, two termination miniature circuit breakers of relay switch In part to be controlled.
As the further prioritization scheme of the programmable lump remote monitor device of intelligent micro-circuit breaker, communication module bag Include:
The RS485 communication module being connected with main control module COM1, the RS485 signal that miniature circuit breaker is sent is converted to Transmit after TTL signal to main control module, the TTL signal of main control module output is converted to RS485 signal transmission to miniature open circuit Device, is simultaneously connected with communication module and the Surveillance center of various RS485 interfaces, realizes remote monitoring function,
The RS232 communication module being connected with main control module COM1, the RS232 signal that miniature circuit breaker is sent is converted to Transmit after TTL signal to main control module, the TTL signal of main control module output is converted to RS232 signal transmission to miniature open circuit Device, is simultaneously connected with communication module and the Surveillance center of various RS232 interfaces, realizes remote monitoring function, and,
The ethernet communication module being connected with main control module COM1, by Ethernet realize miniature circuit breaker, main control module, Information exchange between the communication module of various network interfaces and Surveillance center, realizes remote monitoring function.
Further, the RS485 communication module in programmable lump remote monitor device includes:Electrical isolation and signal Control circuit, MAX485 signaling conversion circuit and RS485 interface circuit, wherein:
Electrical isolation and signal control circuit include:First optocoupler, the second optocoupler, the 3rd optocoupler, 3rd resistor, the 4th resistance, 5th resistance, the 6th resistance, the 7th resistance, the power port of the first optocoupler connects the power supply of main control module, the connecing of the first optocoupler The ground of ground termination main control module power supply, the open-collector output of the first optocoupler connects the receiving terminal of main control module COM1, The anode of the first optocoupler connects one end of the 5th resistance, the power supply of another termination MAX485 signaling conversion circuit of the 5th resistance, and The power supply of one termination main control module of three resistance, the anode of second optocoupler of another termination of 3rd resistor, the negative electrode of the second optocoupler The Enable Pin of main control module COM1 is connect, the colelctor electrode of the second optocoupler connects one end of the 6th resistance, the other end of the 6th resistance The power supply of MAX485 signaling conversion circuit is connect, the emitter stage of the second optocoupler connects the ground of MAX485 signaling conversion circuit power supply, the 4th The power supply of one termination main control module of resistance, the anode of the 3rd optocoupler of another termination of the 4th resistance, the negative electrode of the 3rd optocoupler connects The transmitting terminal of main control module COM1, the power end of the 3rd optocoupler, one end of the 7th resistance all connect MAX485 signal conversion electricity The power supply on road, the open-collector output of the 3rd optocoupler connects the other end of the 7th resistance, the ground connection termination of the 3rd optocoupler The ground of MAX485 signaling conversion circuit power supply;
MAX485 signaling conversion circuit is MAX485 communication chip, receptor output first optocoupler of termination of MAX485 communication chip Negative electrode, the receptor Enable Pin of MAX485 communication chip is connected with the colelctor electrode of the second optocoupler with driver Enable Pin and after connecing Connect, the driver input end of MAX485 communication chip connects the open-collector output of the 3rd optocoupler;
RS485 interface circuit includes:8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the first two-way transient supression Diode, the second two-way transient supression diode, RS485 signal output terminal, a sun of the first two-way transient supression diode Pole, one end of the 8th resistance, one end of the tenth resistance are all connected with the receptor inverting input of MAX485 communication chip, the One end of another termination RS485 signal output terminal of ten resistance, an anode of the second two-way transient supression diode, the 9th electricity One end of resistance, one end of the 11st resistance are all connected with the receptor in-phase input end of MAX485 communication chip, the 11st electricity The other end of another termination RS485 signal output terminal of resistance, another anode of the first two-way transient supression diode, second pair The other end of another anode, the 8th resistance to transient supression diode all connects the ground of MAX485 signaling conversion circuit power supply, the The power supply of another termination MAX485 signaling conversion circuit of nine resistance.
Further, in programmable lump remote monitor device, RS232 communication module includes MAX232 signal conversion electricity Road and RS232 interface circuit, wherein:
MAX232 signaling conversion circuit includes:First electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, MAX232 communication chip, the positive plate of the first electric capacity, a pole of the 5th electric capacity, the power end of MAX232 communication chip all connect master control The power supply of module, the negative plate of the first electric capacity connects the electric current inflow end of driver output resistance in MAX232 communication chip, In MAX232 communication chip, the electric current of driver output resistance flows out the negative plate of the 4th electric capacity of termination, the positive plate of the 4th electric capacity The ground of main control module power supply, MAX232 communication core are all connect with another pole of the 5th electric capacity and the earth terminal of MAX232 communication chip First capacitance cathode of piece accesses the positive plate of the second electric capacity of termination, and the first electric capacity negative pole of MAX232 communication chip accesses termination The negative plate of the second electric capacity, the second capacitance cathode of MAX232 communication chip accesses the positive plate of the 3rd electric capacity of termination, MAX232 Second electric capacity negative pole of communication chip accesses the negative plate of the 3rd electric capacity of termination, the input of driver in MAX232 communication chip The transmitting terminal of main control module COM1 is connect, the output termination main control module COM1 of receptor in MAX232 communication chip Receiving terminal;
RS232 interface circuit includes:DB9 interface, the first inductance, first resistor, second resistance, the transmission data terminal of DB9 interface One end of first resistor is connect, is connected with second resistance first end after the request of DB9 interface sends data terminal and receiving data end and connects Connect, the outfan of driver, another termination MAX232 of second resistance in another termination MAX232 communication chip of first resistor The input of receptor in communication chip, the signal ground terminal of DB9 interface is followed by the ground of main control module power supply through the first inductance.
Further, the ethernet communication module in programmable lump remote monitor device, including:Ethernet chip mould Block circuit, network service isolated variable circuit and RJ45 interface circuit, wherein:
In Ethernet chip modular circuit, the FPDP of Ethernet chip passes through the COM1 of spi bus and main control module Connection;
Network service isolated variable circuit includes:Network transformer, the 25th resistance, the 26th resistance, the 27th electricity Resistance, the 29th resistance, the 30th resistance, the tenth electric capacity, the 11st electric capacity, the 14th electric capacity, the 15th electric capacity, the 16th electricity Hold, a pole of the tenth electric capacity, one end of the 25th resistance, one end of the 26th resistance, the 27th resistance one end equal Connect ethernet communication modular power source, the other end of the 25th resistance, the positive polarity network egress of network transformer driver former limit Mouth all connects the positive polarity differential signal output part of Ethernet chip, the other end of the 26th resistance, network transformer driver The negative polarity network outlet of former limit all connects the negative polarity differential signal output part of Ethernet chip, the other end of the 27th resistance With a pole of the 11st electric capacity and connect the centre cap for being followed by network transformer driver primary coil, the tenth electric capacity another Pole, another ground for extremely all connecing main control module power supply of the 11st electric capacity, a pole of the 14th electric capacity and the one of the 29th resistance End all connects the positive polarity differential signal receiving end of Ethernet chip, and another pole of the 14th electric capacity connects network transformer receptor original The positive polarity network outlet on side, the other end of the 29th resistance and one end of the 30th resistance and a pole of the 15th electric capacity And the centre cap for being followed by network transformer receptor primary coil is connect, another pole of the 15th electric capacity connects main control module power supply Ground, the other end of the 30th resistance and the one of the 16th electric capacity extremely all connect the negative polarity differential signal receiving end of Ethernet chip, Another pole of the 16th electric capacity connects the negative polarity network outlet of network transformer receptor former limit;
RJ45 interface circuit includes:RJ45 network socket interface, the 31st resistance, the 32nd resistance, the 33rd resistance, 34th resistance, the 35th resistance, the 36th resistance, the 17th electric capacity, the 18th electric capacity, RJ45 network socket interface Connection indicate that lamp anode connects one end of the 31st resistance, the activation of RJ45 network socket interface indicates that lamp anode connects the 30th One end of two resistance, the other end of the 31st resistance and the other end of the 32nd resistance all connect the power supply of main control module, The positive polarity differential signal sending end of RJ45 network socket interface connects the positive polarity network outlet of network transformer driver secondary, The negative polarity differential signal sending end of RJ45 network socket interface connects the negative polarity network outlet of network transformer driver secondary, The empty foot of the one of RJ45 network socket interface connects one end of the 33rd resistance, the 35th electricity of another termination of the 33rd resistance One end of resistance, the centre cap of another termination network transformer driver secondary coil of the 35th resistance, RJ45 network egress The positive polarity differential signal receiving end of seated connection mouth connects the positive polarity network outlet of network transformer receptor secondary, RJ45 network egress The negative polarity differential signal receiving end of seated connection mouth connects the negative polarity network outlet of network transformer receptor secondary, RJ45 network egress One end of another sky foot 34 resistance of ground connection of seated connection mouth, the one of the 36th resistance of another termination of the 34th resistance End, the centre cap of another termination network transformer receptor secondary coil of the 36th resistance, a pole of the 17th electric capacity It is connected with the junction point of the 33rd resistance and the junction point, the 34th resistance and the 36th resistance of the 35th resistance, The one of another pole of the 17th electric capacity and the 18th electric capacity extremely all connects the communication earth terminal of RJ45 network socket interface, the 18th electricity Another pole for holding connects the ground of main control module power supply, and the connection of RJ45 network socket interface indicates that lamp cathode meets the company of Ethernet chip Display lamp port is connect, the activation of RJ45 network socket interface indicates that lamp cathode connects the activation display lamp port of Ethernet chip.
The present invention adopts technique scheme, has the advantages that:Miniature circuit breaker is made to possess lump collection existing The function of field data, long-range collection master control presence states and telecommunication, improves integrated level and with IO programmability, adopts The requirement of group-net communication reliability be disclosure satisfy that with intelligent electric appliance of the miniature circuit breaker according to the present invention as controlling switch.
Put into practice the further advantage that the present invention can realize will describe in a specific embodiment.
Description of the drawings
In order to be illustrated more clearly that technical solution of the present invention, embodiment will be described below needed for accompanying drawing to be used make Simple introduction.It should be evident that drawings discussed below is only some embodiments of the present invention, for the common skill in this area For art personnel, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the programmable lump remote monitor device system block diagram of intelligent miniature circuit breaker.
Fig. 2 is the circuit diagram of RS232 communication module.
Fig. 3 is the circuit diagram of RS485 communication module.
Fig. 4 is the circuit diagram of ethernet communication module.
Fig. 5 is the circuit diagram of digital quantity input module.
Fig. 6 is the circuit diagram of digital output module.
Fig. 7 is the circuit diagram of Analog input mModule.
In figure label declaration:L1 is the first inductance, and it is the first to the 51st resistance that L2 is the second inductance, R1 to R51, C1 It is the first to the 23rd electric capacity to C23, it is DB9 interface that O1 to O5 is the first to the 5th optocoupler, J1, P1 is that RS485 signal is defeated Go out terminal, P2 jumper terminal, it is crystal oscillator that Q1 is triode, Y1, D1, D2 are that first, second two-way transient supression diode, D3 is 3rd unidirectional transient supression diode, it is MAX485 communication chip that U1 is MAX232 communication chip, U2, and U3 is W5500 Ethernet Chip, it is network transformer chip that U4 is RJ45 network socket interface, U5, and U6A is high-accuracy voltage comparable chip, U7 for driving Chip, it is magnetic coupling isolating chip that U8 is modulus high accuracy conversion chip, U9, and K1 is relay.
Specific embodiment
Below in conjunction with the accompanying drawings the technical scheme that invents is described in detail.Specific embodiment party below with reference to Description of Drawings Formula is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.Those skilled in the art of the present technique can To understand, when we claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other units Part, it is also possible to which other elements are connected or coupled to by intermediary element.
The system of the programmable lump remote monitor device of intelligent miniature circuit breaker as shown in figure 1, including:Master control mould Block, communication module, digital quantity input module, digital output module and Analog input mModule.Analog input mModule defeated Enter to terminate the analogue signal of lump collection, the output of Analog input mModule terminates the FPDP of main control module, digital quantity is defeated Enter the digital voltage signal of the input termination lump collection of module, the numeral of the output termination main control module of digital quantity input module Amount input, the digital output end of the input termination main control module of digital output module, the output of digital output module continues The electrical equipment amount of outputing.Analog current signal or analog voltage signal in the analogue signal of Analog input mModule detection lump collection And the analogue signal to detecting carries out analog digital conversion and obtains digital sample values, the number that digital quantity input module is received to its input Word voltage signal is first isolated the process of analysis afterpulse count calibrations and is obtained relay intake, and main control module is according to relay Device intake and digital sample values obtain the relay amount of outputing, and digital output module is according to the relay amount of outputing control relay Coil losing electricity or electric and then controlling switch be opened or closed.Main control module is made up of STM32 microprocessor;Communication module bag Include:RS485 communication module, RS232 communication module and ethernet communication module, wherein, RS485 communication module is by RS485 interface Circuit, MAX485 signaling conversion circuit and electrical isolation and signal control circuit composition, RS232 communication module is by RS232 interface Circuit, MAX232 signaling conversion circuit composition, ethernet communication module is by RJ45 interface circuit, network service isolated variable circuit Constitute with W5500 Ethernet chip modular circuit;Digital quantity input module is by voltage signal isolation processing analysis circuit, pulsimeter Number waveform calibration circuit and digital quantity Input interface composition, digital output module is by the relay amount of outputing circuit, electrical isolation Modular circuit and digital quantity Output interface composition;Analog input mModule is selected by current/voltage and signal processing analysis electricity Road, high-precision adc change-over circuit, magnetic coupling isolation circuit and spi bus composition.
RS232 communication module is as shown in figure 1, the COM1 of one end of MAX232 signaling conversion circuit and main control module USART1 connects, and the other end of MAX232 signaling conversion circuit is connected with RS232 interface circuit.The circuit of RS232 communication module Figure is as shown in Figure 2.MAX232 signaling conversion circuit includes:First electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5 and MAX232 communication chip U1, RS232 interface circuit include:DB9 interface J1, the first inductance L1, first Resistance R1, second resistance R2.One end of first inductance L1 is connected with the power supply ground CPU_GND of main control module, the first inductance L1's 5th foot of the other end and DB9 interface J1(Signal ground terminal)Connection, the 3rd foot of DB9 interface J1(Send data terminal)With the first electricity One end connection of resistance R1, the crus secunda of DB9 interface J1(Receiving data end)With the 7th foot(Request sends data terminal)After connection with One end connection of second resistance R2, the 7th foot of the other end of first resistor R1 and MAX232 communication chip U1(Driver is exported End)Connection, the octal of the other end of second resistance R2 and MAX232 communication chip U1(Receptor input)Connection, the first electricity Hold positive plate, the 16th foot of MAX232 communication chip U1 of C1(Power end), the 5th electric capacity C5 a pole be connected with 5V power supply Connect, the negative plate of the first electric capacity C1 and the crus secunda of MAX232 communication chip U1(The electric current of driver output resistance flows into end)Even Connect, another pole of the 5th electric capacity C5, the 15th foot of MAX232 communication chip U1(Earth terminal)With 5V power supply be connected, second First foot of the positive plate of electric capacity C2 and MAX232 communication chip U1(First capacitance cathode incoming end)Connection, the second electric capacity C2's 3rd foot of negative plate and MAX232 communication chip U1(First electric capacity negative pole incoming end)Connection, the positive plate of the 3rd electric capacity C3 with 4th foot of MAX232 communication chip U1(Second capacitance cathode incoming end)Connection, the negative plate of the 3rd electric capacity C3 is logical with MAX232 5th foot of letter chip U1(Second electric capacity negative pole incoming end)Connection, is connected the positive plate of the 4th electric capacity C4 and 5V power supply, the 6th foot of the negative plate of four electric capacity C4 and MAX232 communication chip U1(The electric current outflow end of driver output resistance)Connection, 9th foot of MAX232 communication chip U1(Receptor outfan), the tenth foot(Driver transmitting terminal)Respectively with STM32 microprocessor The USART1_RX pin of device, USART1_TX are connected.MAX232 communication chip U1 is powered using 5V, external first electric capacity C1, Second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4, TTL and RS232 signal is carried out mutual phase transformation, the 9th foot and the tenth foot The pin for connecing microprocessor achieves sending and receiving for data.
RS485 communication module is as shown in figure 1, the communication ends of one end of electrical isolation and signal control circuit and main control module Mouth USART3 connection, the other end of electrical isolation and signal control circuit is connected with one end of MAX485 signaling conversion circuit, The other end of MAX485 signaling conversion circuit is connected with RS485 interface circuit.
The physical circuit of RS485 communication module is as shown in Figure 3.Electrical isolation and signal control circuit include:First optocoupler O1, the second optocoupler O2, the 3rd optocoupler O3,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, MAX485 signaling conversion circuit includes:MAX485 communication chip U2, RS485 interface circuit includes:8th resistance R8, the 9th Resistance R9, the tenth resistance R10, the 11st resistance R11, the first two-way transient supression diode D1, the second two-way transient supression two Pole pipe D2, RS485 signal output terminal P1.The octal of the first optocoupler O1(Power port)With microprocessor 3.3V positive source Connection, the 5th foot of the first optocoupler O1(Earth terminal)With microprocessor 3.3V power supply be connected, the 6th foot of the first optocoupler O1(Collection Electrode open circuit outfan)USART3_RX pin with STM32 microprocessor(The receiving terminal of COM1)Connection, the first optocoupler The crus secunda of O1(Anode)It is connected with one end of the 5th resistance R5, the other end of the 5th resistance R5 is connected with 485VCC power supply, the One end of three resistance R3 is connected with microprocessor 3.3V positive source, and the first of the other end of 3rd resistor R3 and the second optocoupler O2 Foot(Anode)Connection, the crus secunda of the second optocoupler O2(Negative electrode)USART3_EN pin with STM32 microprocessor(COM1 Enable Pin)Connection, the 4th foot of the second optocoupler O2(Colelctor electrode)One end, MAX485 communication chip U2 with the resistance R6 of the 6th electricity Crus secunda(Receptor Enable Pin)And the 3rd foot(Driver Enable Pin)Connection, the other end of the 6th resistance R6 and 485VCC electricity Source connects, the 3rd foot of the second optocoupler O2(Emitter stage)With 485VCC power supply be connected, one end of the 4th resistance R4 and microprocessor The connection of device 3.3V positive source, the other end of the 4th resistance R4 and the crus secunda of the 3rd optocoupler O3(Anode)Connection, the 3rd optocoupler 3rd foot of O3(Negative electrode)USART3_TX pin with STM32 microprocessor(The transmitting terminal of COM1)Connection, the 3rd optocoupler The octal of O3(Power end)It is connected with 485VCC power supply, one end of the 7th resistance R7, the 4th foot of MAX485 communication chip U2 (Driver input end), the 3rd optocoupler O3 the 6th foot(Open-collector output)It is connected, the other end of the 7th resistance R7 It is connected with 485VCC power supply, the 5th foot of the 3rd optocoupler O3(Earth terminal)With 485VCC power supply be connected, MAX485 communication chip The octal of U2(Power end)It is connected with 485VCC power supply, the 7th foot of MAX485 communication chip U2(Receptor inverting input) One anode of transient supression diode D1 two-way with first, one end of the 8th resistance R8, one end of the tenth resistance R10 are connected, the It is connected, MAX485 the other end of eight resistance R8, another anode of the first two-way transient supression diode D1 and 485VCC power supply 6th foot of communication chip U2(Receptor in-phase input end)One anode of transient supression diode D2 two-way with second, the 9th electricity One end of resistance R9, one end connection of the 11st resistance R11, another anode of the second two-way transient supression diode D2 and 485VCC The connection of power supply ground, the other end of the 9th resistance R9 is connected with 485VCC power supply, the other end of the tenth resistance R10 and RS485 signal The 1 foot connection of lead-out terminal P1, the other end of the 11st resistance R11 is connected with 2 feet of RS485 signal output terminal P1.First Optocoupler, the 3rd optocoupler adopt high speed photo coupling 6N137, are powered using 5V insulating power supply, between isolation and STM32 microprocessor Data transfer.Second optocoupler adopts common optical coupler EL817, controls the data transmit-receive of MAX485 communication chip.MAX485 communicates The A of chip, B signal line meet the pull-up resistor R9 and pull down resistor R8 of 10K respectively, can prevent the signal of RS485 interface from disturbing. RS485 signal output terminal P1 meets R10, R11 respectively, it is possible to reduce signaling reflex, suppresses noise, improves RS485 communication chip Stability.
Ethernet communication module is as shown in Figure 1:One end of W5500 Ethernet chip modular circuit and STM32 microprocessor COM1 connects, and the other end of W5500 Ethernet chip modular circuit is connected with one end of network service isolated variable circuit, The other end of network service isolated variable circuit is connected with RJ45 interface circuit.
The physical circuit of ethernet communication module is as shown in Figure 4.W5500 Ethernet chip modular circuit includes:W5500 with Too web-roll core piece U3, the second inductance L2, crystal oscillator Y1, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th Resistance R15, the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 28th Resistance R28, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the 12nd electric capacity C12, the 13rd electric capacity C13, network service isolated variable circuit includes:Network transformer U5, the 25th resistance R25, the 26th resistance R26, 27 resistance R27, the 29th resistance R29, the 30th resistance R30, the tenth electric capacity C10, the 11st electric capacity C11, the 14th Electric capacity C14, the 15th electric capacity C15, the 16th electric capacity C16, RJ45 interface circuit includes:RJ45 network socket interface U3, the 3rd 11 resistance R31, the 32nd resistance R32, the 33rd resistance R33, the 34th resistance R34, the 35th resistance R35, 36th resistance R36, the 17th electric capacity C17, the 18th electric capacity C18.One end of second inductance L2, W5500 Ethernet chip 20th octal of U3, one end of the 19th resistance R19, one end of the 20th resistance R20, one end of the 21st resistance R21, One end of 22nd resistance R22, one end of the 23rd resistance R23, one end of the 24th resistance R24, the 31st electricity One end of resistance R31, one end of the 32nd resistance R32 are connected with microprocessor 3.3V positive source, and the one of the 12nd resistance R12 End, one end of the 13rd resistance R13, one end of the 14th resistance R14, one end of the 15th resistance R15, the 16th resistance R16 One end, one end of the 17th resistance R17, one end of the 18th resistance R18, a pole of the 6th electric capacity C6, the 7th electric capacity C7 One pole, a pole of the 8th electric capacity C8, a pole of the 9th electric capacity C9, a pole of the tenth electric capacity C10, a pole of the 11st electric capacity C11, One pole of the 12nd electric capacity C12, a pole of the 13rd electric capacity C13, a pole of the 15th electric capacity C15, the one of the 18th electric capacity C18 Pole, the 3rd foot of W5500 Ethernet chip U3, the 9th foot of W5500 Ethernet chip U3, the of W5500 Ethernet chip U3 14 feet, the 16th foot of W5500 Ethernet chip U3, the 19th foot of W5500 Ethernet chip U3, W5500 ether web-roll core 29th foot of piece U3 all with microprocessor 3.3V power supply be connected, the other end of the second inductance L2, W5500 Ethernet chip 4th foot of U3, the octal of W5500 Ethernet chip U3, another pole of the 6th electric capacity C6, the 11st of W5500 Ethernet U3 the Foot, the 15th foot of W5500 Ethernet chip U3, the 17th foot of W5500 Ethernet chip U3, the 7th electric capacity C7 another Pole, the 21st foot of W5500 Ethernet chip U3 are connected with analog power VCC3V3A, the other end of the 12nd resistance R12 with The tenth foot connection of W5500 Ethernet chip U3, the other end of the 13rd resistance R13 and the 4th of W5500 Ethernet chip U3 12 feet connect, and the other end of the 14th resistance R14 is connected with the 41st foot of W5500 Ethernet chip U3, the 15th electricity The other end of resistance R15 is connected with the 40th foot of W5500 Ethernet chip U3, the other end of the 16th resistance R16 and W5500 with The 39th foot connection of too web-roll core piece U3, the other end of the 17th resistance R17 and the 30th of W5500 Ethernet chip U3 Octal connects, and another pole of the 8th electric capacity C8 is connected with the 20th foot of W5500 Ethernet chip U3, and the 9th electric capacity C9's is another Pole is connected with the 22nd foot of W5500 Ethernet chip U3, the other end of the 18th resistance R18 and W5500 Ethernet chip The 23rd foot connection of U3, the other end of the 19th resistance R19 is connected with the 45th foot of W5500 Ethernet chip U3, The other end of the 20th resistance R20 is connected with the 44th foot of W5500 Ethernet chip U3, and the 21st resistance R21's is another One end is connected with the 43rd foot of W5500 Ethernet chip U3, the other end of the 22nd resistance R22 and W5500 Ethernet The 37th foot connection of chip U3, the other end of the 23rd resistance R23 and the 36th foot of W5500 Ethernet chip U3 Connection, the other end of the 24th resistance R24 is connected with the 32nd foot of W5500 Ethernet chip U3, the 12nd electric capacity C12 Another pole, a pole, one end of the 28th resistance R28 and W5500 Ethernet chip U3 of crystal oscillator Y1 the 31st foot even Connect, another pole of the 13rd electric capacity C13, another pole of crystal oscillator Y1, the other end of the 28th resistance R28 and W5500 Ethernet The 30th foot connection of chip U3, the other end of the 25th resistance R25, the crus secunda of W5500 Ethernet chip U3(Positive polarity Differential signal outputs), network transformer chip U5 the first foot(The positive polarity network outlet of driver former limit)Connection, second The other end of 16 resistance R26 with W5500 too first foot of web-roll core piece U3(Negative polarity differential signal output part), network transformation 3rd foot of device chip U5(The negative polarity network outlet of driver former limit)Connection, the other end of the 27th resistance R27, the tenth Another pole of one electric capacity C11 and the crus secunda of network transformer chip U5(The centre cap of driver primary coil)Connection, the 6th foot of one end, a pole of the 14th electric capacity C14 and W5500 Ethernet chip U3 of 29 resistance R29(Positive polarity differential Signal receiving end)Connection, another pole of the 9th electric capacity C9 is connected with the 22nd foot of network transformer chip U5, and the 29th The other end of resistance R29, one end of the 30th resistance R30, the 15th electric capacity C15 another extremely all with network transformer chip U5 The 7th foot(The centre cap of receptor primary coil)Connection, the other end of the 30th resistance R30, the one of the 16th electricity C16 5th foot of pole and W5500 Ethernet chip U3(Negative polarity differential signal receiving end)Connection, another pole of the 16th electric capacity C16 U5 octal with network transformer chip(The negative polarity network outlet of receptor former limit)Connection, networking transformator chip U5's 9th foot(The negative polarity network outlet of receptor secondary)The 6th foot with RJ45 network socket interface U4(Negative polarity differential signal Receiving terminal)Connection, the tenth foot of networking transformator chip U5(The centre cap of receptor secondary coil)With the 36th resistance One end connection of R36, the 11st foot of network transformer chip U5(The positive polarity network outlet of receptor secondary)With RJ45 net 3rd foot of network jack interface U4(Positive polarity differential signal receiving end)Connection, the 14th foot of network transformer chip U5(Drive The negative polarity network port of dynamic device secondary)Crus secunda with RJ45 network socket interface U4(Negative polarity differential signal sending end)Even Connect, the 15th foot of network transformer chip U5(The centre cap of driver secondary coil)With the 35th resistance R35 one End connection, the 16th foot of network transformer chip U5(The positive polarity network port of driver secondary)With RJ45 network egress seated connection First foot of mouth U4(Positive polarity differential signal sending end)Connection, the other end of the 35th resistance R35, the 33rd resistance One end of R33, one end of the 34th resistance R34, the other end of the 36th resistance R36, a pole phase of the 17th electric capacity C17 Connection, another pole of the 17th electric capacity C17, another pole of the 18th electric capacity C18, a RJ45 network socket interface B foot(Communication Earth terminal)It is connected, the 4th foot of the other end of the 33rd resistance R33 and RJ45 network socket interface U4(Empty foot)With the 5th Foot(Empty foot)Connection, the 7th foot of the other end of the 34th resistance R34 and RJ45 network socket interface U4(Empty foot)With the 8th Foot(Empty foot)Connection, the 12nd foot of the other end of the 31st resistance R31 and RJ45 network socket interface U4(Connection display lamp Anode)Connection, the tenth foot of the other end of the 32nd resistance R32 and RJ45 network socket interface U4(Activation indicates lamp anode) Connection, the 11st foot of RJ45 network socket interface U4(Connection indicates lamp cathode)With W5500 Ethernet chip U3 the 20th Five feet connect, the 9th foot of RJ45 network socket interface U4(Activation indicates lamp cathode)With W5500 Ethernet chip U3 second 17 feet connect.Model HY601680 of network transformer chip, for coupled signal level with enhancing signal, passes signal Defeated distance becomes remote, is isolated from the outside chip, improves capacity of resisting disturbance.Microprocessor sends data, microprocessor by TXN, TXP Device receives external data by RXP, RXN.
Digital quantity input module is as shown in Figure 1:The outfan of voltage signal isolation processing analysis circuit and step-by-step counting ripple The input connection of shape calibration circuit, the outfan of step-by-step counting waveform calibration circuit is micro- with STM32 through digital quantity Input interface The digital quantity input connection of processor.
The physical circuit of digital quantity input module is as shown in Figure 5.Voltage signal isolation processing analysis circuit includes:30th Seven resistance R37, the 38th resistance R38, the 4th optocoupler O4, the 3rd unidirectional transient supression diode D3, the 19th electric capacity C19, 39th resistance R39, the 40th resistance R40, step-by-step counting waveform calibration circuit includes:41st resistance R41, the 40th Two resistance R42, the 43rd resistance R43, the 44th resistance R44, high-accuracy voltage comparable chip U6A.37th resistance One end of R37, one end of the 38th resistance R38 connect digital voltage signal respectively, the other end of the 37th resistance R37, The other end of 38 resistance R38, first foot of the 4th optocoupler O4(Anode)It is connected, the 38th resistance R38 receives numeral The crus secunda of one end of voltage signal and the 4th optocoupler O4(Negative electrode)Connection, the 4th foot of the 4th optocoupler O4(Colelctor electrode), the 3rd The anode of unidirectional transient supression diode D3, one end of the 39th resistance R39, one end of the 40th resistance R40, the 19th electricity The pole for holding C19 is connected, the 3rd foot of the 4th optocoupler O4(Emitter stage), the 19th electric capacity C19 another pole, the 41st electricity Resistance R41 one end all with 3.3V be connected, the negative pole of the 3rd unidirectional transient supression diode D3, the 39th resistance R39 another One end, one end of the 42nd resistance R42, one end of the 44th resistance R44 are all connected with 3.3V positive source, and the 41st 6th foot of the other end of resistance R41, the other end of the 42nd resistance R42 and high-accuracy voltage comparable chip U6A(Negative pole) Connection, the other end of the 40th resistance R40, the 7th foot of high-accuracy voltage comparable chip U6A(Positive pole), the 43rd resistance One end of R43 is connected, the other end of the 43rd resistance R43, the first foot of high-accuracy voltage comparable chip U6A(Output End), the other end of the 44th resistance R44 be connected with the digital quantity input of STM32 microprocessor after connecing.Digital quantity is input into Module can receive 0-30V digital direct current voltage signal, and when input voltage is more than 5-30V, input logic is electric 1, when be input into Force down when 0-3V, input logic is 0.U6A is high-accuracy voltage comparator, when negative pole is than just extremely low more than 2mV, exports low Level;When negative pole is than high more than 2mV, high level is exported, so as to calibrate to waveform, realizes step-by-step counting function.Can pass through soft Part is programmed to the mutual switching of intake and step-by-step counting.
Digital output module is as shown in Figure 1:The input of relay switching variable circuit with electrical isolation modular circuit Outfan connection, the numeral of the input of electrical isolation modular circuit through digital quantity Output interface with STM32 microprocessor Amount outfan connection.
The physical circuit of digital output module is as shown in Figure 6.Electrical isolation modular circuit includes the 45th resistance R45 With the 5th optocoupler O5 and the 46th resistance R46, the relay amount of outputing circuit includes:Driving chip U7 and relay K1.4th One end of 15 resistance R45 is connected with the digital output end of STM32 microprocessor, the other end of the 45th resistance R45 with The crus secunda of the 5th optocoupler O5(Negative electrode)Connection, first foot of the 5th optocoupler O5(Anode)It is connected with 3.3V positive source, the 5th 3rd foot of optocoupler O5(Emitter stage)It is connected with one end of the 46th resistance R46, the other end of the 46th resistance R46 and drive The crus secunda of dynamic chip U7(Input)Connection, the 4th foot of the 5th optocoupler O5(Colelctor electrode), driving chip U7 the 9th foot, continue One end of electrical equipment K1 coil is connected with 24V positive source, is connected, driving chip the octal of driving chip U7 and 24V power supply 15th foot of U7(Outfan)It is connected with the other end of relay K1 coil, apparatus to be controlled is accessed at relay K1 contact two ends. Model ULN2003 of driving chip U7, ULN2003 is darlington transistor array chip, and R45 is current-limiting resistance, when micro- place When the digital signal CPU_DO of reason device output is high level, the 5th optocoupler is not turned on, and now, the 2nd foot of ULN2003 is input into low electricity Flat, then the 15th foot of ULN2003 exports high level, and relay K1 coil must not be electric, conversely, then relay K1 coil obtains electric suction Close.
Analog input mModule is as shown in Figure 1:The outfan of current/voltage selection signal Treatment Analysis circuit and high accuracy The input connection of ADC change-over circuit, the outfan of high-precision adc change-over circuit is connected with the input of magnetic coupling isolation circuit, The outfan of magnetic coupling isolation circuit is connected with STM32 microprocessor I/O pin by spi bus.
The physical circuit of Analog input mModule is as shown in Figure 7.Current/voltage selection signal Treatment Analysis circuit includes: 47th resistance R47, the 48th resistance R48, the 49th resistance R49, the 20th electric capacity C20, jumper terminal P2, high-precision Degree ADC change-over circuit includes:21st electric capacity C21, the 22nd electric capacity C22, the 23rd electric capacity C23, modulus high accuracy Conversion chip U8, magnetic coupling isolation circuit includes:Magnetic coupling isolating chip U9, audion Q1, the 50th resistance R50, the 51st electricity Resistance R51, one end of the 47th resistance R47, the analogue signal of a termination lump collection of the 48th resistance R48, the 40th The other end of seven resistance R47, a pole of the 20th electric capacity C20, one end of the 49th resistance R49 and modulus high accuracy change core First foot of piece U8(Analog input end)Connection, another pole of the 20th electric capacity C20, jumper terminal P2 crus secunda, the 21st One pole of electric capacity C21, the negative plate of the 22nd electric capacity C2, the negative plate of the 23rd electric capacity C23, modulus high accuracy change core 15th foot of piece U8, the 9th foot of magnetic coupling isolating chip U9(Second earth terminal)With analog power AI be connected, the 48th The other end of resistance R48 is connected with first foot of jumper terminal P2, and the other end of the 49th resistance R49 is with jumper terminal P2's 3rd foot connects, the tenth foot of modulus high accuracy conversion chip U8(External reference buffer input)With the 23rd electric capacity The positive terminal connection of C23, the 9th foot of modulus high accuracy conversion chip U8(External reference buffer output end), the 22nd electricity Hold the positive plate of C22, another pole of the 21st electric capacity C21 to be connected, the 16th foot of modulus high accuracy conversion chip U8(Electricity Source), magnetic coupling isolating chip U9 the tenth foot(Second Enable Pin)It is connected with analog power AI positive pole, modulus high accuracy changes core 14th foot of piece U8(Digital signal input end)The 12nd foot with magnetic coupling isolating chip U9(C-channel outfan)Connection, mould 13rd foot of number high accuracy conversion chip U8(Digital signal Shift outputs)The 11st foot with magnetic coupling isolating chip U9(D Path input)Connection, the 12nd foot of modulus high accuracy conversion chip U8(Shift clock end)With magnetic coupling isolating chip U9's 13rd foot(Channel B outfan)Connection, the 11st foot of modulus high accuracy conversion chip U8(Conversion start end)With magnetic coupling every 14th foot of off-chip piece U9(A channel outfan)Connection, the 16th foot of magnetic coupling isolating chip U9(Second supply port)With Analog power AI positive pole connects, the 7th foot of magnetic coupling isolating chip U9(First Enable Pin)One end with the 51st resistance R51, The colelctor electrode of audion Q1 is connected, the emitter stage of audion Q1, the octal of magnetic coupling isolating chip U9 and crus secunda(First connects Ground terminal)With 3.3V power supply be connected, one end of the 50th resistance R50 is connected with the base stage of audion Q1, the 50th resistance R50's The other end, first foot of magnetic coupling isolating chip U9(First supply port)It is connected with 3.3V positive source, the 51st resistance R51 The other end, the 3rd foot of magnetic coupling isolating chip U9(A channel input)The interrupt signal of STM32 microprocessor output is received, 4th foot of magnetic coupling isolating chip U9(Channel B input), the 5th foot(C-channel input), the 6th foot(D channel output end)Logical The FPDP for spi bus being crossed with STM32 microprocessor is connected.Magnetic coupling isolating chip is four-way numeral isolating chip LTC1863, reduces interference of the extraneous analog signalses to microprocessor.This module can detect the analog current signal of 0-20mA Or 0-10V analog voltage signal, when 0-20mA analog current signal is detected, by jumper cap by the 1st foot of wire jumper port P2 With the 2nd foot short circuit, then electric current by the 48th resistance R48 produce pressure drop carry out signal detection.When detection 0-10V analog voltage During signal, then by jumper cap by the 2nd foot of jumper terminal P2 port and the 3rd foot short circuit, by the 47th resistance R47 and the 4th Detect after 19 R49 partial pressures, the 20th electric capacity C20 is sampling holding capacitor.

Claims (10)

1. the programmable lump remote monitor device of intelligent micro-circuit breaker, it is characterised in that include:
Analog input mModule, the analogue signal of its input termination lump collection, detects the mould in the analogue signal of lump collection Intend current signal or analog voltage signal and the analogue signal to detecting carry out analog digital conversion, digital sample values are exported,
Digital quantity input module, the digital voltage signal of its input termination lump collection, digital voltage signal is first isolated Output relay intake after the process of analysis afterpulse count calibrations,
Main control module, its FPDP connects the outfan of Analog input mModule, its digital quantity input termination digital quantity input mould The outfan of block, according to digital sample values and the relay intake output relay amount of outputing,
Digital output module, the digital output end of its input termination main control module, according to the relay of main control module output The amount of outputing control relay is switched off or is closed, and,
Communication module, is connected with the COM1 of main control module, realizes the interaction of information between main control module and miniature circuit breaker.
2. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 1, it is characterised in that described Analog input mModule, including:
Current/voltage selection signal Treatment Analysis circuit, the analogue signal of its input termination lump collection, detects lump collection Analogue signal sampled value is exported after analog voltage signal or analog current signal in analogue signal,
High-precision adc change-over circuit, the outfan of its input termination current/voltage selection signal Treatment Analysis circuit, to simulation Signal sampling value exports digital sample values after carrying out analog digital conversion, and,
Magnetic coupling isolation circuit, the outfan of its input termination high-precision adc change-over circuit, output digital sample values are to main control module FPDP.
3. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 1, it is characterised in that
The digital quantity input module, including:
Voltage signal isolation processing analysis circuit, the digital voltage signal of its input termination lump collection, export mould to be calibrated Intend signal, and,
Step-by-step counting waveform calibrates circuit, and one input end connects reference analog signal, the simulation of its another input reception calibration Signal, the digital quantity input of output relay intake to main control module;
The digital output module, including:
Electrical isolation modular circuit, the digital output end of its input termination main control module, and,
The relay amount of outputing circuit, the outfan of its input termination electrical isolation modular circuit, the output relay amount of outputing.
4. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 2, it is characterised in that
Current/voltage selection signal Treatment Analysis circuit includes:47th resistance, the 48th resistance, the 49th resistance, 20th electric capacity, jumper terminal, wherein, one end of the 47th resistance, one end of the 48th resistance connect together reception The analogue signal of lump collection, the Single port of another termination jumper terminal of the 48th resistance, one end of the 49th resistance Connect the another port of jumper terminal, the other end of the 47th resistance, a pole of the 20th electric capacity, the 49th resistance another After holding and connecing as current/voltage selection signal Treatment Analysis circuit outfan, the 20th electric capacity another pole, jumper terminal Earth terminal all connects the ground of simulated measurement input circuit power supply;
High-precision adc change-over circuit includes:21st electric capacity, the 22nd electric capacity, the 23rd electric capacity, modulus high accuracy turn Chip is changed, wherein, the simulation input of modulus high accuracy conversion chip terminates the defeated of current/voltage selection signal Treatment Analysis circuit Go out end, the external reference of a pole, the positive plate of the 22nd electric capacity of the 21st electric capacity all with modulus high accuracy conversion chip Buffer output end, the positive plate of the 23rd electric capacity connects the external reference buffer input of modulus high accuracy conversion chip, Another pole of the 21st electric capacity, the negative plate of the 22nd electric capacity, the negative plate of the 23rd electric capacity, modulus high accuracy are changed The earth terminal of chip all connects the ground of simulated measurement input circuit power supply;
Magnetic coupling isolation circuit includes:Magnetic coupling isolating chip, audion, the 50th resistance, the 51st resistance, magnetic coupling isolated core Second Enable Pin and the second supply port of piece all connect the power supply of simulated measurement input circuit, and the A channel of magnetic coupling isolating chip is defeated Go out to terminate the conversion start end of modulus high accuracy conversion chip, the channel B output termination modulus high accuracy of magnetic coupling isolating chip The shift clock end of conversion chip, the numeral letter of the C-channel output termination modulus high accuracy conversion chip of magnetic coupling isolating chip Number input, the D path input of magnetic coupling isolating chip connects the digital signal Shift outputs of modulus high accuracy conversion chip, The interrupt signal of the A channel input termination main control module output of magnetic coupling isolating chip, the channel B input of magnetic coupling isolating chip End, C-channel input, D channel output end are connected with main control module FPDP by spi bus, magnetic coupling isolating chip First Enable Pin is connected with one end of the 51st resistance, the colelctor electrode of audion, and the other end of the 51st resistance receives master The interrupt signal of control module output, the base stage of audion connects one end of the 50th resistance, the other end of the 50th resistance, magnetic coupling First supply port of isolating chip all connects the power supply of main control module, and the emitter stage of audion, the first of magnetic coupling isolating chip connect Ground terminal all connects the ground of main control module power supply, the ground of the second ground connection termination simulated measurement input circuit power supply of magnetic coupling isolating chip.
5. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 3, it is characterised in that
Voltage signal isolation processing analysis circuit includes:37th resistance, the 38th resistance, the 4th optocoupler, the 3rd unidirectional Transient supression diode, the 19th electric capacity, the 39th resistance, the 40th resistance, one numeral of a termination of the 37th resistance Voltage signal, the other end of the 37th resistance, one end of the 38th resistance are all connected with the anode of the 4th optocoupler, and the 30th The other end of eight resistance, the negative electrode of the 4th optocoupler all connect another digital voltage signal, the sun of the 3rd unidirectional transient supression diode Pole, one end of the 39th resistance, one end of the 40th resistance, the one of the 19th electric capacity are extremely all connected with the colelctor electrode of the 4th optocoupler Connect, the negative electrode of the 3rd unidirectional transient supression diode and the other end of the 39th resistance simultaneously connect and be followed by direct voltage source, the tenth The emitter stage of another pole of nine electric capacity and the 4th optocoupler all connects the ground of direct voltage source, and the other end of the 40th resistance is used as voltage The outfan of signal isolation Treatment Analysis circuit;
Step-by-step counting waveform calibration circuit includes:41st resistance, the 42nd resistance, the 43rd resistance, the 44th Resistance, high-accuracy voltage comparable chip, the 42nd resistance one termination direct voltage source, the other end of the 42nd resistance and One end of 41st resistance is all connected with the negative pole of high-accuracy voltage comparable chip, another termination direct current of the 41st resistance The ground of voltage source, one end of the positive pole of high-accuracy voltage comparable chip and the 43rd resistance is all divided with voltage signal isolation processing The outfan connection of analysis circuit, the other end of the 43rd resistance, one end of the 44th resistance, high-accuracy voltage comparable chip Outfan and be connected with the digital quantity input of main control module after connecing, another termination direct voltage source of the 44th resistance.
6. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 3, it is characterised in that
Electrical isolation modular circuit includes:45th resistance, the 5th optocoupler, the 46th resistance, the one of the 45th resistance The digital output end of termination main control module, the negative electrode of the 5th optocoupler of another termination of the 45th resistance, the sun of the 5th optocoupler Pole connects the power supply of main control module, and the colelctor electrode of the 5th optocoupler connects DC source, and the emitter stage of the 5th optocoupler connects the 46th resistance One end, the other end of the 46th resistance is used as the outfan of electrical isolation modular circuit;
The relay amount of outputing circuit includes driving chip and relay, the input termination electrical isolation modular circuit of driving chip Outfan, one end of the output relay termination coil of driving chip, the other end of relay coil and the power supply of driving chip Port all connects DC source, the ground of the ground connection termination DC source of driving chip, two termination miniature circuit breakers of relay switch In part to be controlled.
7. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 1, it is characterised in that described Communication module includes:
The RS485 communication module being connected with main control module COM1, the RS485 signal that miniature circuit breaker is sent is converted to Transmit after TTL signal to main control module, the TTL signal of main control module output is converted to RS485 signal transmission to miniature open circuit Device, is simultaneously connected with communication module and the Surveillance center of various RS485 interfaces,
The RS232 communication module being connected with main control module COM1, the RS232 signal that miniature circuit breaker is sent is converted to Transmit after TTL signal to main control module, the TTL signal of main control module output is converted to RS232 signal transmission to miniature open circuit Device, is simultaneously connected with communication module and the Surveillance center of various RS232 interfaces, and,
The ethernet communication module being connected with main control module COM1, by Ethernet realize miniature circuit breaker, main control module, Information exchange between the communication module of various network interfaces and Surveillance center.
8. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 7, it is characterised in that described RS485 communication module includes:Electrical isolation and signal control circuit, MAX485 signaling conversion circuit and RS485 interface circuit, its In:
Electrical isolation and signal control circuit include:First optocoupler, the second optocoupler, the 3rd optocoupler, 3rd resistor, the 4th resistance, 5th resistance, the 6th resistance, the 7th resistance, the power port of the first optocoupler connects the power supply of main control module, the connecing of the first optocoupler The ground of ground termination main control module power supply, the open-collector output of the first optocoupler connects the receiving terminal of main control module COM1, The anode of the first optocoupler connects one end of the 5th resistance, the power supply of another termination MAX485 signaling conversion circuit of the 5th resistance, and The power supply of one termination main control module of three resistance, the anode of second optocoupler of another termination of 3rd resistor, the negative electrode of the second optocoupler The Enable Pin of main control module COM1 is connect, the colelctor electrode of the second optocoupler connects one end of the 6th resistance, the other end of the 6th resistance The power supply of MAX485 signaling conversion circuit is connect, the emitter stage of the second optocoupler connects the ground of MAX485 signaling conversion circuit power supply, the 4th The power supply of one termination main control module of resistance, the anode of the 3rd optocoupler of another termination of the 4th resistance, the negative electrode of the 3rd optocoupler connects The transmitting terminal of main control module COM1, the power end of the 3rd optocoupler, one end of the 7th resistance all connect MAX485 signal conversion electricity The power supply on road, the open-collector output of the 3rd optocoupler connects the other end of the 7th resistance, the ground connection termination of the 3rd optocoupler The ground of MAX485 signaling conversion circuit power supply;
MAX485 signaling conversion circuit is MAX485 communication chip, receptor output first optocoupler of termination of MAX485 communication chip Negative electrode, the receptor Enable Pin of MAX485 communication chip is connected with the colelctor electrode of the second optocoupler with driver Enable Pin and after connecing Connect, the driver input end of MAX485 communication chip connects the open-collector output of the 3rd optocoupler;
RS485 interface circuit includes:8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the first two-way transient supression Diode, the second two-way transient supression diode, RS485 signal output terminal, a sun of the first two-way transient supression diode Pole, one end of the 8th resistance, one end of the tenth resistance are all connected with the receptor inverting input of MAX485 communication chip, the One end of another termination RS485 signal output terminal of ten resistance, an anode of the second two-way transient supression diode, the 9th electricity One end of resistance, one end of the 11st resistance are all connected with the receptor in-phase input end of MAX485 communication chip, the 11st electricity The other end of another termination RS485 signal output terminal of resistance, another anode of the first two-way transient supression diode, second pair The other end of another anode, the 8th resistance to transient supression diode all connects the ground of MAX485 signaling conversion circuit power supply, the The power supply of another termination MAX485 signaling conversion circuit of nine resistance.
9. the programmable lump remote monitor device of intelligent micro-circuit breaker according to claim 7, it is characterised in that described RS232 communication module includes MAX232 signaling conversion circuit and RS232 interface circuit, wherein:
MAX232 signaling conversion circuit includes:First electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, MAX232 communication chip, the positive plate of the first electric capacity, a pole of the 5th electric capacity, the power end of MAX232 communication chip all connect master control The power supply of module, the negative plate of the first electric capacity connects the electric current inflow end of driver output resistance in MAX232 communication chip, In MAX232 communication chip, the electric current of driver output resistance flows out the negative plate of the 4th electric capacity of termination, the positive plate of the 4th electric capacity The ground of main control module power supply, MAX232 communication core are all connect with another pole of the 5th electric capacity and the earth terminal of MAX232 communication chip First capacitance cathode of piece accesses the positive plate of the second electric capacity of termination, and the first electric capacity negative pole of MAX232 communication chip accesses termination The negative plate of the second electric capacity, the second capacitance cathode of MAX232 communication chip accesses the positive plate of the 3rd electric capacity of termination, MAX232 Second electric capacity negative pole of communication chip accesses the negative plate of the 3rd electric capacity of termination, the input of driver in MAX232 communication chip The transmitting terminal of main control module COM1 is connect, the output termination main control module COM1 of receptor in MAX232 communication chip Receiving terminal;
RS232 interface circuit includes:DB9 interface, the first inductance, first resistor, second resistance, the transmission data terminal of DB9 interface One end of first resistor is connect, is connected with second resistance first end after the request of DB9 interface sends data terminal and receiving data end and connects Connect, the outfan of driver, another termination MAX232 of second resistance in another termination MAX232 communication chip of first resistor The input of receptor in communication chip, the signal ground terminal of DB9 interface is followed by the ground of main control module power supply through the first inductance.
10. according to claim 7 can miniature circuit breaker programmable lump remote monitor device, it is characterised in that described Ethernet communication module, including:Ethernet chip modular circuit, network service isolated variable circuit and RJ45 interface circuit, its In:
In Ethernet chip modular circuit, the FPDP of Ethernet chip passes through the COM1 of spi bus and main control module Connection;
Network service isolated variable circuit includes:Network transformer, the 25th resistance, the 26th resistance, the 27th electricity Resistance, the 29th resistance, the 30th resistance, the tenth electric capacity, the 11st electric capacity, the 14th electric capacity, the 15th electric capacity, the 16th electricity Hold, a pole of the tenth electric capacity, one end of the 25th resistance, one end of the 26th resistance, the 27th resistance one end equal Connect ethernet communication modular power source, the other end of the 25th resistance, the positive polarity network egress of network transformer driver former limit Mouth all connects the positive polarity differential signal output part of Ethernet chip, the other end of the 26th resistance, network transformer driver The negative polarity network outlet of former limit all connects the negative polarity differential signal output part of Ethernet chip, the other end of the 27th resistance With a pole of the 11st electric capacity and connect the centre cap for being followed by network transformer driver primary coil, the tenth electric capacity another Pole, another ground for extremely all connecing main control module power supply of the 11st electric capacity, a pole of the 14th electric capacity and the one of the 29th resistance End all connects the positive polarity differential signal receiving end of Ethernet chip, and another pole of the 14th electric capacity connects network transformer receptor original The positive polarity network outlet on side, the other end of the 29th resistance and one end of the 30th resistance and a pole of the 15th electric capacity And the centre cap for being followed by network transformer receptor primary coil is connect, another pole of the 15th electric capacity connects main control module power supply Ground, the other end of the 30th resistance and the one of the 16th electric capacity extremely all connect the negative polarity differential signal receiving end of Ethernet chip, Another pole of the 16th electric capacity connects the negative polarity network outlet of network transformer receptor former limit;
RJ45 interface circuit includes:RJ45 network socket interface, the 31st resistance, the 32nd resistance, the 33rd resistance, 34th resistance, the 35th resistance, the 36th resistance, the 17th electric capacity, the 18th electric capacity, RJ45 network socket interface Connection indicate that lamp anode connects one end of the 31st resistance, the activation of RJ45 network socket interface indicates that lamp anode connects the 30th One end of two resistance, the other end of the 31st resistance and the other end of the 32nd resistance all connect the power supply of main control module, The positive polarity differential signal sending end of RJ45 network socket interface connects the positive polarity network outlet of network transformer driver secondary, The negative polarity differential signal sending end of RJ45 network socket interface connects the negative polarity network outlet of network transformer driver secondary, The empty foot of the one of RJ45 network socket interface connects one end of the 33rd resistance, the 35th electricity of another termination of the 33rd resistance One end of resistance, the centre cap of another termination network transformer driver secondary coil of the 35th resistance, RJ45 network egress The positive polarity differential signal receiving end of seated connection mouth connects the positive polarity network outlet of network transformer receptor secondary, RJ45 network egress The negative polarity differential signal receiving end of seated connection mouth connects the negative polarity network outlet of network transformer receptor secondary, RJ45 network egress One end of another sky foot 34 resistance of ground connection of seated connection mouth, the one of the 36th resistance of another termination of the 34th resistance End, the centre cap of another termination network transformer receptor secondary coil of the 36th resistance, a pole of the 17th electric capacity It is connected with the junction point of the 33rd resistance and the junction point, the 34th resistance and the 36th resistance of the 35th resistance, The one of another pole of the 17th electric capacity and the 18th electric capacity extremely all connects the communication earth terminal of RJ45 network socket interface, the 18th electricity Another pole for holding connects the ground of main control module power supply, and the connection of RJ45 network socket interface indicates that lamp cathode meets the company of Ethernet chip Display lamp port is connect, the activation of RJ45 network socket interface indicates that lamp cathode connects the activation display lamp port of Ethernet chip.
CN201611080567.XA 2016-11-30 2016-11-30 Programmable lumped remote measurement and control device for smart miniature circuit breaker Pending CN106444727A (en)

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CN109062072A (en) * 2018-09-19 2018-12-21 杭州华炳电子科技有限公司 A kind of smart home monitor control system based on Internet of Things
CN111751715A (en) * 2020-05-14 2020-10-09 广西电网有限责任公司电力科学研究院 Be applied to primary loop detection device of circuit breaker
CN112834913A (en) * 2021-01-08 2021-05-25 胜达克半导体科技(上海)有限公司 High-voltage testing method for stacking tester channel
CN113448275A (en) * 2021-07-30 2021-09-28 重庆市农业科学院 Embedded control greenhouse control system
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CN107579832A (en) * 2017-07-31 2018-01-12 博为科技有限公司 Ethernet interface telecommunication circuit without network transformer
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CN112834913B (en) * 2021-01-08 2024-04-26 胜达克半导体科技(上海)股份有限公司 High-voltage testing method for stacking tester channel
CN113448275A (en) * 2021-07-30 2021-09-28 重庆市农业科学院 Embedded control greenhouse control system
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Application publication date: 20170222