CN109462531A - Multi-energy data monitoring device and system - Google Patents
Multi-energy data monitoring device and system Download PDFInfo
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- CN109462531A CN109462531A CN201910023025.6A CN201910023025A CN109462531A CN 109462531 A CN109462531 A CN 109462531A CN 201910023025 A CN201910023025 A CN 201910023025A CN 109462531 A CN109462531 A CN 109462531A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 34
- 239000003990 capacitor Substances 0.000 claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 9
- QWCRAEMEVRGPNT-UHFFFAOYSA-N buspirone Chemical compound C1C(=O)N(CCCCN2CCN(CC2)C=2N=CC=CN=2)C(=O)CC21CCCC2 QWCRAEMEVRGPNT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 34
- 238000002955 isolation Methods 0.000 claims description 34
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 238000013024 troubleshooting Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 12
- 230000003321 amplification Effects 0.000 description 11
- 238000003199 nucleic acid amplification method Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 8
- 238000004321 preservation Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
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- 241001269238 Data Species 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/03—Power distribution arrangements
- H04Q1/032—Power distribution arrangements power failure protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
Abstract
It includes: capacitor charging discharging circuit, including first diode, current-limiting resistance, super capacitor and the second diode that the present invention, which discloses a kind of multi-energy data monitoring device and system, the device,；Controller, including power input, CAN signal transmitting terminal and CAN signal receiving end；And CAN bus receives and dispatches driving circuit, including power end and CAN transceiver；The anode of first diode is connected to power supply, and cathode is connected to the anode of super capacitor；One end of current-limiting resistance and the cathode of first diode connect, other end ground connection；The cathode of super capacitor is grounded, and anode is also connect with the anode of the second diode；The cathode of second diode is connect with power input and power end respectively；CAN transceiver includes the bus pin that connect with the fault message output end of node device to, the signal receiving end of CAN signal receiving end that is connected to the signal sending end of CAN signal transmitting terminal and is connected to controller.Reporting for fault message can be achieved in the present invention, is conducive to the raising for repairing troubleshooting efficiency.
Description
Technical field
The present invention relates to technical field of electricity, more particularly to multi-energy data monitoring device and system.
Background technique
With the development of Internet of Things, the application such as the service of the comprehensive energies such as distribution O&M, energy management and Electrical Safety is to energy
The requirement of source data monitoring device is higher and higher.Inventor has found that traditional multi-energy data is supervised in the practice of the invention
When surveying device disconnection fault occur, can not reporting fault information, maintenance personal can not quickly determine abort situation, lead to maintenance platoon
Downtime is long, poor user experience.
Summary of the invention
Based on this, it is necessary to provide a kind of multi-energy data monitoring device and system, it can be achieved that fault message reports, favorably
In the raising of maintenance troubleshooting efficiency.
On the one hand, the present invention provides a kind of multi-energy data monitoring device, and described device is connect at least one node device,
For monitoring the multi-energy data of the node device.Described device includes that controller, capacitor charging discharging circuit and CAN bus transmitting-receiving are driven
Dynamic circuit.
Capacitor charging discharging circuit includes first diode, current-limiting resistance, super capacitor and the second diode.
Controller includes power input, CAN signal transmitting terminal and CAN signal receiving end.
It includes power end and CAN transceiver that CAN bus, which receives and dispatches driving circuit,；
The capacitor charging discharging circuit includes first diode, current-limiting resistance, super capacitor and the second diode；Described first
The anode of diode is connected to power supply, and cathode is connected to the anode of the super capacitor；One end of the current-limiting resistance with it is described
The cathode of first diode connects, other end ground connection；The cathode of the super capacitor is grounded, anode also with second diode
Anode connection；The cathode of second diode is connect with the power input of the controller；The CAN transceiver includes
The bus pin connecting with the fault message output end of the node device is to, signal sending end and signal receiving end；The CAN
The signal sending end of transceiver is connected to the CAN signal transmitting terminal of the controller；The signal receiving end of the CAN transceiver connects
It is connected to the CAN signal receiving end of the controller；The cathode of second diode also receives and dispatches driving circuit with the CAN bus
Power end connection.
Compared with the prior art, multi-energy data monitoring device provided by the invention, can by the charge and discharge of super capacitor,
Driving circuit is received and dispatched for controller and CAN bus when system is powered down, power supply in short-term is provided, pass through CAN bus convenient for node device
Driving circuit reporting fault information is received and dispatched, and carry out data preservation convenient for controller to have to realize reporting for fault message
Conducive to the raising of maintenance troubleshooting efficiency.
In a kind of optional embodiment, the controller further includes detection of power loss end；Described device further includes power down
Detection circuit；The output end of the power-fail detection circuit is connect with the detection of power loss end of the controller.
In a kind of optional embodiment, the controller further includes detection of power loss end；The current-limiting resistance includes the
Three resistance and the 4th resistance；One end of the 3rd resistor is connect with the cathode of the first diode, the other end and described the
One end of four resistance connects；The other end of 4th resistance is grounded；The other end of the 3rd resistor also with the controller
Detection of power loss end connection.
In a kind of optional embodiment, described device further includes power isolation circuit；Second diode is born
Pole is connect by the power isolation circuit with the power end that the CAN bus receives and dispatches driving circuit.
In a kind of optional embodiment, the power isolation circuit includes DCDC isolating chip, third capacitor and
Four capacitors；DCDC isolating chip includes upstream power end, grounded upstream end, downstream power end and downstream ground terminal；Described second
The cathode of diode connects the upstream power end of the DCDC isolating chip；The power end of the CAN bus transmitting-receiving driving circuit
Connect the downstream power end of the DCDC isolating chip；The grounded upstream end of the DCDC isolating chip also passes through the third electricity
Appearance is connected to power ground；The downstream ground terminal of the DCDC isolating chip also passes through the 4th capacitance connection to signal ground.
In a kind of optional embodiment, described device further includes voltage-stablizer；The downstream electrical of the DCDC isolating chip
Source is connect by the voltage-stablizer with the power end that the CAN bus receives and dispatches driving circuit.
In a kind of optional embodiment, CAN bus transmitting-receiving driving circuit further includes the first isolation circuit and the
Two isolation circuits；The signal sending end of the CAN transceiver is connected to the CAN of the controller by first isolation circuit
Signal sending end；The signal receiving end of the CAN transceiver is connected to the CAN of the controller by second isolation circuit
Signal receiving end.
In a kind of optional embodiment, first isolation circuit includes the 8th resistance and the first high speed photo coupling core
Piece；The first high speed photo coupling chip includes cathode, anode, power input and open collector；First high speed photo coupling
The cathode of chip is connected to the first power supply by the 8th resistance, and anode is connected to the CAN signal transmitting terminal of the controller,
Open collector and power input are all connected to second source.
In a kind of optional embodiment, second isolation circuit includes the tenth resistance, the second high speed photo coupling chip
With eleventh resistor；The second high speed photo coupling chip includes cathode, anode, power input and open collector；Described
The cathode of two high speed photo coupling chips is connected to the second source by the tenth resistance, and anode is connected to the CAN transmitting-receiving
The signal receiving end of device, open collector are connected to the CAN signal receiving end of the controller, and open collector is connected to described
First power supply；The open collector of the second high speed photo coupling chip is also connected to first electricity by the eleventh resistor
Source.
On the other hand, the present invention also provides a kind of multi-energy datas to monitor system, and the system comprises such as any of the above-described implementations
Multi-energy data monitoring device and server described in example；The controller of the multi-energy data monitoring device includes that network communication connects
Mouthful；The multi-energy data monitoring device is communicated by the network communication interface and the server.
Compared with the prior art, multi-energy data provided by the invention monitors system, can by the charge and discharge of super capacitor,
Driving circuit is received and dispatched for controller and CAN bus when system is powered down, power supply in short-term is provided, pass through CAN bus convenient for node device
Driving circuit reporting fault information is received and dispatched, and carry out data preservation convenient for controller to have to realize reporting for fault message
Conducive to the raising of maintenance troubleshooting efficiency.Realize the connection of controller and server, by network communication circuit convenient for believing failure
Breath reports to server, conducive to the intelligence for realizing multi-energy data monitoring.
Detailed description of the invention
Fig. 1 is the partial schematic diagram of the multi-energy data monitoring device in an embodiment of the present invention；
Fig. 2 is the another partial schematic diagram of the multi-energy data monitoring device in an embodiment of the present invention；
Fig. 3 is the schematic diagram of the CAN bus transmitting-receiving driving circuit in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the second voltage signal amplification circuit in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the multi-energy data monitoring device in a further embodiment of this invention；
Fig. 6 is the schematic diagram of the residual current detection circuit in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the multi-energy data monitoring system in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that when element by claim with another element " connection " when, it can directly with another element
It connects or there may also be elements placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Fig. 1 and Fig. 2 are please referred to, multi-energy data monitoring device 3 provided in this embodiment is connect at least one node device,
For the multi-energy data of monitoring node equipment 18, device 3 includes that controller 11, capacitor charging discharging circuit 19 and CAN bus transmitting-receiving are driven
Dynamic circuit 17.Controller 11 includes power input VCC_IN, CAN signal transmitting terminal CAN_TXD and CAN signal receiving end CAN_
RXD。
Capacitor charging discharging circuit includes first diode D1, current-limiting resistance, super capacitor C1 and the second diode D2.Super electricity
Appearance also known as electrochemical capacitor, double layer capacitor, gold capacitor, farad capacitor are by polarized electrolytic matter come one kind of energy storage
Electrochemical element.
Multi-energy data includes one of information such as voltage, electric current, power, power factor (PF), time, phase angle or a variety of.
Specifically, current-limiting resistance includes 3rd resistor R3 and the 4th resistance R4.
The anode of first diode D1 is connected to power supply VCC_SYS, and cathode is connected to the anode of super capacitor C1.Third electricity
One end of resistance R3 is connect with the cathode of first diode D1, and the other end is connect with one end of the 4th resistance R4.4th resistance R4's
Other end ground connection.The cathode of super capacitor C1 is grounded, and anode is also connect with the anode of the second diode D2.Second diode D2's
Cathode is connect with the power input VCC_IN of controller 11.The power input VCC_IN of controller 11 passes through power supply VCC_P
Power supply.Capacitor charging discharging circuit further includes resistance R23.The anode of first diode D1 is connected to power supply VCC_ by resistance R23
SYS.Optionally, resistance R23 can be formed by multiple resistor coupled in parallel.
In system worked well, power supply VCC_SYS charges to super capacitor C1, and the voltage of the anode of super capacitor C1 is
VBATT.When system is powered down, super capacitor C1 electric discharge, the late-class circuit for the second diode D2 provides power supply VCC_P.
It is then system by the charge and discharge of super capacitor since controller 11 is set to the late-class circuit of the second diode D2
Power supply in short-term is provided when power down, carries out data preservation convenient for controller, to improve the reliability of multi-energy data monitoring.
It includes power end VCC_CAN, CAN transceiver 171 that CAN bus, which receives and dispatches driving circuit 17,.
CAN transceiver 171, which includes the bus pin that connect with the fault message output end of the node device, sends out, signal
Sending end TXD and signal receiving end RXD.Wherein, the bus pin of CAN transceiver 171 is to including bus high level pin H and bus
Low level pin L.Wherein, bus high level pin H is used to be connected to the CAN_H line of bus, and bus low level pin L is for connecting
It is connected to the CAN_L of bus.
The cathode of second diode D2 is also connect with the power end VCC_CAN of CAN bus transmitting-receiving driving circuit 17.CAN is received
The signal sending end TXD of hair device 171 is connected to the CAN signal transmitting terminal CAN_TXD of controller 11；The signal of CAN transceiver 17
Receiving end RXD is connected to the CAN signal receiving end CAN_RXD of controller 11.
Further, CAN bus transmitting-receiving driving circuit 17 further includes the first isolation circuit 172 and the second isolation circuit 173.
The signal sending end TXD of CAN transceiver 171 is connected to the input terminal of the first isolation circuit 172, and signal receiving end RXD is connected to
The input terminal of second isolation circuit 173.The output end of first isolation circuit 172 is connected to the CAN signal transmitting terminal of controller 11
CAN_TXD.The output end of second isolation circuit 173 is connected to the CAN signal receiving end CAN_RXD of controller 11.
In the present embodiment, the specification of super capacitor is 4F, 5.5V.The super capacitor of the specification can maintain controller and
CAN bus receives and dispatches drive circuit works certain time.Since controller 11 and CAN bus transmitting-receiving driving circuit are set to the two or two
The late-class circuit of pole pipe D2 is controller and CAN bus transmitting-receiving driving when system is powered down then by the charge and discharge of super capacitor
Circuit provides power supply in short-term, receives and dispatches driving circuit reported data by CAN bus convenient for node device, and be convenient for controller
Data preservation is carried out, to realize reporting for fault message, is conducive to the raising for repairing troubleshooting efficiency.
Multi-energy data monitoring device provided in this embodiment supports CAN bus communications protocol, application-layer data transmission to support
Two kinds of JSON, google protocol buffer serializing modes, can be adapted to various Internet of Things application scenarios extensively.This
Device can be received and dispatched driving circuit by CAN bus and realize the data of more node devices while concurrently upload without causing bus to gather around
Plug reduces the risk of data entanglement, improves the accuracy and real-time of multi-energy data monitoring.
Further, first diode D1 is Schottky diode.Second diode D2 is Schottky diode.Using Xiao Te
Based diode can reduce power consumption, improve efficiency.In other embodiments, first diode D1 can be fast recovery diode,
The diodes such as general-purpose diode.Second diode D2 can be the diodes such as fast recovery diode, general-purpose diode.
Further, controller 11 further includes detection of power loss end DET.Optionally, device further includes power-fail detection circuit；Power down
The output end of detection circuit is connect with the detection of power loss end of controller 11.Controller 11 is fallen by detection of power loss end detection system
Electricity, convenient for actively, in time being saved to data when system is powered down.In the present embodiment, the other end of 3rd resistor R3
It is connect with the detection of power loss end of controller 11.By this way, hardware cost can be saved.
Further, device 3 further includes power isolation circuit 20；The cathode of second diode D2 passes through power isolation circuit 20
It is connect with the power end of CAN bus transmitting-receiving driving circuit.
Specifically, power isolation circuit 20 includes DCDC isolating chip, third capacitor and the 4th capacitor (not shown).
DCDC isolating chip includes upstream power end, grounded upstream end, downstream power end and downstream ground terminal.Second diode D2's is negative
The upstream power end of pole connection DCDC isolating chip.CAN bus receive and dispatch driving circuit 17 power end VCC_CAN connection DCDC every
The downstream power end of off-chip piece.The grounded upstream end of DCDC isolating chip also passes through the third capacitance connection to power ground；Institute
The downstream ground terminal for stating DCDC isolating chip also passes through the 4th capacitance connection to signal ground.It is carried out by power isolation circuit electrical
Isolation prevents electrical Interference, improves stability.
Further, device 3 further includes voltage-stablizer 21.The downstream power end of DCDC isolating chip passes through voltage-stablizer 21 and CAN
The power end VCC_CAN connection of bus transmitting-receiving driving circuit 17.
Preferably, voltage-stablizer 21 includes enable end, input terminal and output end.The input terminal and DCDC isolated core of voltage-stablizer 21
The downstream power end of piece connects, the power end VCC_CAN of output end and CAN bus transmitting-receiving driving circuit 17.Controller 11 also wraps
Include CAN enable signal output end.The CAN enable signal output end of controller 11 is connect with the enable end of voltage-stablizer 21.Controller
11 are specifically used for when detecting power-off signal, first control signal are sent to the enable end of voltage-stablizer 21, so that voltage-stablizer 21
Output end out-put supply, and to CAN bus transmitting-receiving driving circuit 17 obtain fault message；Controller 11 is also used to receiving event
After hindering information, second control signal is sent to the enable end of voltage-stablizer 21, so that the output end of voltage-stablizer 21 stops out-put supply.
By sending control signal to the enable end of voltage-stablizer 21, CAN bus transmitting-receiving driving circuit can be disconnected after receiving fault message
Power supply, continue the electric energy for consuming super capacitor to avoid CAN bus transmitting-receiving driving circuit, strive for more times for controller
Carry out storing data, to guarantee that fault message is stored in time, improve the reliability of data storage, to improve maintenance troubleshooting
Efficiency.
Referring to Fig. 3, it is the schematic diagram of the CAN bus transmitting-receiving driving circuit in an embodiment of the present invention.
First isolation circuit 172 includes the 8th resistance R8 and the first high speed photo coupling chip U5；First high speed photo coupling chip U5
Including cathode Anode, positive C athode, power input VCC, open collector OUT and ground terminal GND；First high speed photo coupling
The cathode Anode of chip U5 is connected to the first power supply VCC_1 by the 8th resistance R8, and positive C athode is connected to controller 11
CAN signal transmitting terminal CAN_TXD, open collector OUT and power input VCC be all connected to second source VCC_2.
Second isolation circuit includes the tenth resistance, the second high speed photo coupling chip U6 and eleventh resistor R11；Second high-speed light
Coupling chip U6 includes cathode Anode, positive C athode, power input VCC, open collector OUT and ground terminal GND.Second
The cathode Anode of high speed photo coupling chip U6 is connected to second source VCC_2 by the tenth resistance R10, and positive C athode is connected to
The signal receiving end RXD of CAN transceiver U7, open collector OUT are connected to the CAN signal receiving end CAN_RXD of controller 11,
Open collector OUT is connected to the first power supply VCC_1.The open collector OUT of second high speed photo coupling chip U6 also passes through the tenth
One resistance R11 is connected to the first power supply VCC_1.
The electrical isolation that each node of CAN bus is realized by high speed photo coupling chip, improves the reliability of CAN communication, in turn
Improve the accuracy of multi-energy data monitoring.In the present embodiment, the first high speed photo coupling chip and the second high speed photo coupling chip are all adopted
Use ELM611.
Further, device 3 further includes the isolation DC/DC power supply for the first power supply VCC_1 and second source VCC_2 to be isolated
Module.First power supply is isolated with second source by the module, and the electrical isolation of each node of CAN bus is further realized, and is improved
The reliability of CAN communication, and then improve the accuracy of multi-energy data monitoring.
It further includes the 7th resistance R7 and the 9th resistance R9 that CAN bus, which receives and dispatches driving circuit,.Bus high level pin CAN_H is logical
The 7th resistance R7 is crossed to connect with bus low level pin CAN_L.The signal sending end TXD of CAN transceiver passes through the 9th resistance R9
It is connected to second source VCC_2.
It further includes TVS Transient Suppression Diode ZD3 that CAN bus, which receives and dispatches driving circuit 17,.Bus high level pin CAN_H is also
It is connect by TVS Transient Suppression Diode ZD3 with bus low level pin CAN_L.Inhibit two pole ZD3 that can press down by TVS transient state
Transition interference processed, improves the stability and accuracy of device.
CAN transceiver 171 further includes power input VDD, ground terminal VSS, reference end REF and spare end RS.Wherein,
The ground terminal VSS of CAN transceiver 171 is grounded, and power input VDD is connected to second source VCC_2.CAN bus transmitting-receiving driving
Circuit further includes resistance R25.The spare end RS of CAN transceiver 171 is grounded by resistance R25.
Specifically, multi-energy data monitoring device 3 further includes voltage signal sampling circuit, current signal sample circuit, three-phase
Metering chip, LCD display, memory, key, switching quantity detection circuit, detection circuit of uncapping, strong magnetic sensor circuit, RS485
Communicating circuit, network communication circuit, electric power management circuit, LED light indicating circuit, buzzer alert circuit etc..Further, network
Communicating circuit is wireless telecommunications mould group.Specifically, wireless telecommunications mould group can be the channel radios such as 2G, 4G, LoRaWAN, NB-IoT
Interrogate one of mould group.Preferably, wireless telecommunications mould group is NB-IoT communication module group.
Further, detection circuit of uncapping includes infrared sensor.
Driving circuit and wireless telecommunications mould group are received and dispatched by CAN bus, convenient for controller when detecting that system is powered down, and
When by the fault information reporting of node device to cloud, improve the efficiency of maintenance troubleshooting.The present apparatus supports sensor in CAN bus
The data of high concurrent upload, and realize the innovation such as real-time active reporting of telemetering, remote signalling, remote regulating, remote-control data and alarm event
Inexpensive networking mode.
Referring to Fig. 4, it is the structural schematic diagram of the multi-energy data monitoring device in a further embodiment of this invention.Such as figure
Shown in 4, multi-energy data monitoring device includes controller 11, capacitor transmission circuit 19 described in above-described embodiment, isolated from power electricity
Road 20, voltage-stablizer 21 and CAN bus transmitting-receiving driving circuit 17 (being not shown in Fig. 5) further include residual current detection circuit 12, temperature
Spend detection circuit 14 and controllable switch 13.Controller 11 includes the first signal acquisition terminal 110, second signal collection terminal 111 and control
Signal output end 112 processed.First signal acquisition terminal 110 of controller 11 is connect with the output end of residual current detection circuit 12；
The second signal collection terminal 111 of controller 11 is connect with the output end of temperature sensing circuit 14；Controllable switch 13 include for
First connecting pin 130 of the connection of power supply 15, second connection end 131 and controlled end 132 for being connect with load 16；Controllable switch
13 controlled end 132 is connect with the control signal output 112 of controller 11.
Residual current, also known as leakage current refer to each phase (containing the neutral conductor) current phasor in low-voltage distributing line and are not zero
Electric current.
Multi-energy data monitoring device provided in this embodiment, can be real by residual current detection circuit and temperature sensing circuit
The parallel acquisition of existing residual current and temperature, conducive to the logical of controllable switch is controlled by controller combination residual current and temperature
It is disconnected, it will load and be disconnected with power supply, and to realize that multi-energy data monitors, improve the reliability of multi-energy data monitoring.By wireless
Communication module group can be realized and export control signal to controlled end 132 by cloud, realize long-range control, improves multi-energy data prison
The intelligence of survey.
Optionally, controllable switch includes relay.The moving contact of relay is connect with power supply 15, normally-closed contact and load
Connection.In other embodiments, the normally opened contact of relay and load connect.Illustratively, controllable switch further includes the 6th
The control signal output 112 of resistance and triode, controller 11 is connect with the base stage of triode by the 6th resistance.Triode
Emitter ground connection.The collector of triode is connected to the first coil pin of relay, and the second coil pin of relay connects
It is connected to working power.
Temperature sensing circuit 14 includes temperature sensor and second voltage signal amplification circuit.The output end of temperature sensor
It is connect with the input terminal of second voltage signal amplification circuit.The of the output end of second voltage signal amplification circuit and controller 11
Binary signal collection terminal 111 connects.
Further, temperature sensor is platinum resistance temperature sensor (PT100).
Referring to Fig. 5, it is the schematic diagram of the second voltage signal amplification circuit in an embodiment of the present invention.Such as Fig. 5
Shown, second voltage signal amplification circuit includes resistance R12~R22, capacitor C3, capacitor C4, the first operational amplifier U1 and
Two operational amplifier U2.One end of resistance R12 is grounded GND, and the other end is connect with one end of resistance R13.One end of resistance R13 is also
It is connect with one end of resistance R16.The other end of resistance R13 is connected to second voltage power supply VCC_T.The other end of resistance R16 with
The positive input terminal of first operational amplifier U1 connects.The positive input terminal of first operational amplifier U1 also passes through resistance R17 and is grounded
GND.One end of resistance R14 is connected to second voltage power supply VCC_T, and the other end is connect with one end of resistance R15.Resistance R15's
The other end is connect with the negative input end of the first operational amplifier U1.The negative input end of first operational amplifier U1 also passes through resistance
R22 is connect with the output end of the first operational amplifier U1.One end of resistance R15 also passes through capacitor C3 and is grounded.One end of resistance R15
It is also used to connect and (be not shown in Fig. 2) with the output end of temperature sensor.
The output end of first operational amplifier U1 is connect by resistance R19 with the positive input terminal of second operational amplifier U2.
The negative input end of second operational amplifier U2 is grounded by resistance R18.The negative input end of second operational amplifier U2 also passes through electricity
Resistance R20 is connected to the output end of second operational amplifier U2.The output end of second operational amplifier U2 and the second of controller 11
Signal acquisition terminal 111 connects.The output end of second operational amplifier U2 is connect by resistance R21 with one end of capacitor C4.Capacitor
The other end of C4 is grounded.
Second voltage signal amplification circuit further includes static suppressor ZD2.Resistance R14 also passes through static suppressor ZD2 and connects
Ground.
Sound-light alarm can be realized by LED light indicating circuit, buzzer alert circuit, improve the reliable of multi-energy data monitoring
Property.
Referring to Fig. 6, its be the schematic diagram of the residual current detection circuit in an embodiment of the present invention as shown in fig. 6,
Residual current detection circuit 12 includes residual current transformer 120, electric current turns potential circuit 121 and the amplification of first voltage signal is electric
Road 122；
The current line mode of connection of conventional junction component be bottom in and top out mode, miscellaneous function terminal shell two rows all
It is distributed, forceful electric power and light current do not do function distinguishing every there are dangerous and low efficiencys for, site operation the disadvantages of；And miscellaneous function end
Son is less, leads to afunction, is not adapted to plurality of application scenes.In the present embodiment, the structural member of multi-energy data monitoring device 3
(not shown) includes upper shell component, terminal assemblies, wiring board, residual current transformer, antenna and lower shell component, it is described on
Shell component, antenna and lower shell component connect composition hollow housing, the wiring board, terminal assemblies, residual current transformer mutual inductance
Device is arranged in hollow housing, and the terminal assemblies include earth-current line access terminal, pressure-wire access terminal and auxiliary function
Energy terminal, is separately connected wiring board and residual current transformer.
Present apparatus structural member uses new design mode, improves lower shell component and the terminal assemblies in structural member.It will be electric
Streamline access terminal Uniting is arranged under shell, and miscellaneous function terminal Uniting is arranged on shell, and increases auxiliary function
The quantity of energy terminal greatly enhances the extendable functions of the present apparatus to 15.The extendable functions include multi way temperature
With residual current acquisition, RS485 communication port, CAN bus communication port, multi-way switching values signal input, relay control output and
Accessory power supply power supply etc..
Residual current transformer 120 includes positive current output end and negative current output end；It includes that electric current, which turns potential circuit,
One resistance R1 and second resistance R2；The resistance value of first resistor R1 is equal with the resistance value of second resistance R2.One end of first resistor R1
It is connect with one end of second resistance R2；The other end of first resistor R1 and the positive current output end of residual current transformer 120 connect
It connects；The other end of second resistance R2 is connect with the negative current output end of residual current transformer 120；The other end of first resistor R1
Also it is connect with the input terminal of first voltage signal amplification circuit 122；The output end of first voltage signal amplification circuit 122 and control
First signal acquisition terminal 110 of device 11 connects.
Specifically, first voltage signal amplification circuit 122 includes resistance R7~R11, capacitor C2, capacitor C6, third operation
Amplifier U3 and four-operational amplifier U4.One end of resistance R7 is connect with one end of resistance R8.The other end of resistance R7 and
The positive input terminal of three operational amplifier U3 connects.The other end of resistance R8 and the negative current output end of residual current transformer 120
Connection.The negative input end of third operational amplifier U3 is connected to the output end of third operational amplifier U3 by resistance R9.Third
The output end of operational amplifier U3 is also connect with one end of resistance R10.The other end of resistance R10 passes through the fortune of resistance R11 and the 4th
Calculate the positive input terminal connection of amplifier U4.The positive input terminal of four-operational amplifier U4 also passes through capacitor C6 and is grounded.Resistance R10's
The other end also passes through the negative input end that capacitor C2 is connected to four-operational amplifier U4.The output end of four-operational amplifier U4 is also
It is connect with the negative input end of four-operational amplifier U4.The output end of four-operational amplifier U4 is also believed with the first of controller 11
Number collection terminal 110 connects.
Further, residual current detection circuit further includes static suppressor ZD1.One end of static suppressor ZD1 and residue
The positive current output end of current transformer 120 connects, and the other end is connect with the negative current output end of residual current transformer 120.
Further, residual current detection circuit further includes resistance R6.The positive input of resistance R6 and third operational amplifier U3
End connection.The resistance value of resistance R6 is 0 ohm.
Further, the Standard resistance range of first resistor R1 is less than 100 ohm.Preferably, the resistance value of first resistor R1 is 47
Ohm.
Further, the precision of first resistor R1 is less than or equal to 1%.The precision of the second resistance be less than or equal to
1%.Residual current detection precision is improved by precision resister, and then improves the reliability of multi-energy data monitoring.At other
In embodiment, the precision of first resistor R1 can be 1% or so.In another optional embodiment, the essence of second resistance R2
Degree can be 1% or so.
Multi-energy data monitoring device 3 further includes second voltage conversion circuit.The second voltage conversion circuit includes the 5th electricity
Resistance, transistor, low pressure difference linear voltage regulator.Further, low pressure difference linear voltage regulator includes power input, enable end, power supply
Output end.One end of 5th resistance and the enable end of low pressure difference linear voltage regulator connect, and the other end is connected to tertiary voltage power supply.
One end of 5th resistance is also connect with the collector of transistor.Controller 11 further includes enable signal control output end.Transistor
Emitter ground connection, base stage connect with the enable signal control output end of controller 11.The power supply of low pressure difference linear voltage regulator is defeated
Enter end and be connected to tertiary voltage power supply, power output end is for exporting the 4th voltage source.Temperature sensing circuit 14 further includes electricity
Source input terminal.The power input of temperature sensing circuit 14 is connected to the 4th voltage source.Residual current transformer 12 further includes
Power input.The power input of residual current transformer 12 is connected to the 4th voltage source.
Temperature sensing circuit and residual current detection circuit are realized by the enable end of low pressure difference linear voltage regulator
It is enabled, it can be applied to the scene for not needing temperature detection or residual current monitoring, thereby saving energy consumption.
Referring to Fig. 7, it is the structural schematic diagram of the multi-energy data monitoring system in an embodiment of the present invention.Such as Fig. 7
Shown, multi-energy data provided in this embodiment monitors system 2 comprising the multi-energy data monitoring as described in above-mentioned any embodiment
Device 3 and server 4；The controller 11 of multi-energy data monitoring device 3 includes network communication interface 113；Multi-energy data monitoring dress
3 are set to communicate by network communication interface 113 and server 4.
It should be noted that server 4 can be physical server, it is also possible to Cloud Server.
Compared with the prior art, multi-energy data provided in this embodiment monitors system, can by the charge and discharge of super capacitor,
Driving circuit is received and dispatched for controller and CAN bus when system is powered down, and power supply in short-term is provided, it is total by CAN convenient for node device
Line receives and dispatches driving circuit reporting fault information, and carries out data preservation convenient for controller, thus realize reporting for fault message,
Be conducive to repair the raising of troubleshooting efficiency；By network communication interface, fault information reporting to server can be also easy to implement
The remote assistance of maintenance, and fault message is recorded.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of multi-energy data monitoring device, described device are connect at least one node device, set for monitoring the node
Standby multi-energy data characterized by comprising
Capacitor charging discharging circuit, including first diode, current-limiting resistance, super capacitor and the second diode；
Controller, including power input, CAN signal transmitting terminal and CAN signal receiving end；And
CAN bus receives and dispatches driving circuit, including power end and CAN transceiver；
The capacitor charging discharging circuit includes first diode, current-limiting resistance, super capacitor and the second diode；One or two pole
The anode of pipe is connected to power supply, and cathode is connected to the anode of the super capacitor；One end of the current-limiting resistance and described first
The cathode of diode connects, other end ground connection；The cathode of the super capacitor is grounded, anode also with second diode just
Pole connection；The cathode of second diode is connect with the power input of the controller；The CAN transceiver includes and institute
The bus pin of fault message output end connection of node device is stated to, signal sending end and signal receiving end；The CAN transmitting-receiving
The signal sending end of device is connected to the CAN signal transmitting terminal of the controller；The signal receiving end of the CAN transceiver is connected to
The CAN signal receiving end of the controller；Electricity of the cathode of second diode also with CAN bus transmitting-receiving driving circuit
Source connection.
2. multi-energy data monitoring device according to claim 1, which is characterized in that the controller further includes detection of power loss
End；Described device further includes power-fail detection circuit；The detection of power loss of the output end of the power-fail detection circuit and the controller
End connection.
3. multi-energy data monitoring device according to claim 1, which is characterized in that the controller further includes detection of power loss
End；The current-limiting resistance includes 3rd resistor and the 4th resistance；One end of the 3rd resistor is negative with the first diode
Pole connection, the other end are connect with one end of the 4th resistance；The other end of 4th resistance is grounded；The 3rd resistor
The other end is also connect with the detection of power loss end of the controller.
4. multi-energy data monitoring device according to claim 1-3, which is characterized in that described device further includes electricity
Source isolation circuit；The cathode of second diode receives and dispatches driving circuit by the power isolation circuit and the CAN bus
Power end connection.
5. multi-energy data monitoring device according to claim 4, which is characterized in that the power isolation circuit includes DCDC
Isolating chip, third capacitor and the 4th capacitor；DCDC isolating chip includes upstream power end, grounded upstream end, downstream power end
With downstream ground terminal；The cathode of second diode connects the upstream power end of the DCDC isolating chip；The CAN bus
The power end of transmitting-receiving driving circuit connects the downstream power end of the DCDC isolating chip；The upstream of the DCDC isolating chip connects
Ground terminal also passes through the third capacitance connection to power ground；The downstream ground terminal of the DCDC isolating chip also passes through the described 4th
Capacitance connection is to signal ground.
6. multi-energy data monitoring device according to claim 5, which is characterized in that described device further includes voltage-stablizer；Institute
The downstream power end for stating DCDC isolating chip is connected by the power end that the voltage-stablizer and the CAN bus receive and dispatch driving circuit
It connects.
7. multi-energy data monitoring device according to claim 6, which is characterized in that the CAN bus receives and dispatches driving circuit
It further include the first isolation circuit and the second isolation circuit；The signal sending end of the CAN transceiver passes through the first isolation electricity
Road is connected to the CAN signal transmitting terminal of the controller；The signal receiving end of the CAN transceiver passes through the second isolation electricity
Road is connected to the CAN signal receiving end of the controller.
8. multi-energy data monitoring device according to claim 7, which is characterized in that first isolation circuit includes the 8th
Resistance and the first high speed photo coupling chip；The first high speed photo coupling chip includes cathode, anode, power input and open circuit current collection
Pole；The cathode of the first high speed photo coupling chip is connected to the first power supply by the 8th resistance, and anode is connected to the control
The CAN signal transmitting terminal of device processed, open collector and power input are all connected to second source.
9. multi-energy data monitoring device according to claim 8, which is characterized in that second isolation circuit includes the tenth
Resistance, the second high speed photo coupling chip and eleventh resistor；The second high speed photo coupling chip includes cathode, anode, power input
End and open collector；The cathode of the second high speed photo coupling chip is connected to the second source by the tenth resistance,
Anode is connected to the signal receiving end of the CAN transceiver, and the CAN signal that open collector is connected to the controller receives
End, open collector are connected to first power supply；The open collector of the second high speed photo coupling chip also passes through described
11 resistance are connected to first power supply.
10. a kind of multi-energy data monitors system, which is characterized in that including multi-energy data as described in any one of claims 1 to 9
Monitoring device and server；The controller of the multi-energy data monitoring device includes network communication interface；The multi-energy data prison
Device is surveyed to communicate by the network communication interface and the server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023025.6A CN109462531A (en) | 2019-01-10 | 2019-01-10 | Multi-energy data monitoring device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023025.6A CN109462531A (en) | 2019-01-10 | 2019-01-10 | Multi-energy data monitoring device and system |
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| CN109462531A true CN109462531A (en) | 2019-03-12 |
Family
ID=65616380
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910023025.6A Pending CN109462531A (en) | 2019-01-10 | 2019-01-10 | Multi-energy data monitoring device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112637375A (en) * | 2020-12-16 | 2021-04-09 | 安徽阿瑞特汽车电子科技有限公司 | CAN bus equipment address setting circuit |
| CN115987333A (en) * | 2023-03-16 | 2023-04-18 | 泉州艾奇科技有限公司 | Receiving circuit, transmitting circuit and communication system of broadband wireless micro-distance sensor |
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Effective date of registration: 20200317 Address after: 310000 floor 2, building 2, No. 69, Dongxin Avenue, Zhijiang science and Technology Industrial Park, high tech Zone, Binjiang District, Hangzhou, Zhejiang Province Applicant after: HANGZHOU ZHONGHENG CLOUD ENERGY INTERNET TECHNOLOGY Co.,Ltd. Applicant after: HANGZHOU ELECTRIC Co.,Ltd. Address before: 310000 Zhejiang Province, Hangzhou Binjiang District, Hangzhou High-tech Zone, 2 floors, Building 69 Dongxin Avenue, Zhijiang Science and Technology Industrial Park, Hangzhou Applicant before: HANGZHOU ZHONGHENG CLOUD ENERGY INTERNET TECHNOLOGY Co.,Ltd. |