CN204008906U - A kind of special change acquisition terminal with high tension loop monitoring - Google Patents

A kind of special change acquisition terminal with high tension loop monitoring Download PDF

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CN204008906U
CN204008906U CN201420410068.2U CN201420410068U CN204008906U CN 204008906 U CN204008906 U CN 204008906U CN 201420410068 U CN201420410068 U CN 201420410068U CN 204008906 U CN204008906 U CN 204008906U
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resistance
current
circuit
wireless data
voltage
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陈小勇
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The intelligent development in science and technology company limited of Guangzhou sunlight hundred million
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SHENZHEN YIXUNLI TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a kind of special change acquisition terminal with high tension loop monitoring, it comprises special change acquisition terminal body, also comprise and be arranged on respectively high-pressure side line of electric force A, B, Wireless data acquisition unit on C three-phase, be arranged on the wireless data receiver on special change acquisition terminal body and be arranged on respectively low-pressure side line of electric force A, B, current transformer on C three-phase, Wireless data acquisition unit and wireless data receiver include a micropower wireless communication module, Wireless data acquisition unit is connected with wireless data receiver by micropower wireless network, on wireless data receiver, also there is a UART interface, specially become acquisition terminal body and comprise host CPU and AC sampling module, wireless data receiver is connected with host CPU by UART interface, AC sampling module is connected with current transformer.Its beneficial effect is: gather high-pressure side power line current, magnitude of voltage by Wireless data acquisition unit, send special change acquisition terminal body to by wireless receiver, after specially becoming the conversion of acquisition terminal body, compare with electric current, the magnitude of voltage of the low-pressure side line of electric force that specially becomes the collection of acquisition terminal body, can judge whether low tension loop exists fault or electricity filching behavior.

Description

A kind of special change acquisition terminal with high tension loop monitoring
Technical field
The utility model relates to field of power, concrete relates to a kind of special change acquisition terminal with high tension loop monitoring.
Background technology
At present, specially the general employing of change user specially becomes acquisition terminal collection and specially becomes user power utilization information, and be reported to main website of electric company, realize remote monitoring and specially become user power utilization situation, existing special change acquisition terminal has AC sampling function, can gather the electrical network parameters such as the electric current, voltage, power, electric weight in accessed loop.Specially become acquisition terminal with local RS485 bus interface, can copy reading specially become user and measure the electric current with electric energy meter, voltage, power, the data such as electric weight, general special transformer terminals and user's electric energy meter access the same circuit, power by special change acquisition terminal and user's electric energy meter and electric weight differential, judge whether the operation of user's electric energy meter exists fault or electricity filching behavior, the electrical network parameter that also can arrive by comprehensive specially change acquisition terminal AC sampling and the data of user's electric energy meter, judge loop fault or user's electricity filching behavior, the general high special change acquisition terminal that supplies low meter specially to become user's employing is installed on step down side, the special change acquisition terminal that massive quantity power supply and measurement specially becomes user's employing passes through voltage transformer (VT), current transformer access high-pressure side, the operating voltage that specially becomes acquisition terminal is all low-voltage, for 3x220V or 3x100V, specially change acquisition terminal accesses simultaneously ac circuit and loop, user's electric energy meter place are the same circuit, if there is fault or electricity filching behavior in whole low tension loop, cannot judge by the power of special transformer terminals and user's electric energy meter and the differential of electric weight.
Utility model content
The purpose of this utility model is effectively to overcome the deficiency of above-mentioned technology, a kind of special change acquisition terminal with high tension loop monitoring is provided, can judge whether whole low tension loop exists fault or electricity filching behavior, to more effectively find low tension loop fault or electricity filching behavior.
The technical solution of the utility model is achieved in that it comprises the special change acquisition terminal body that is arranged on step down side, described special change acquisition terminal body is connected with electric company main station system, its improvements are: also comprise and be arranged on respectively high-pressure side line of electric force A, B, Wireless data acquisition unit on C three-phase, be arranged on the wireless data receiver on described special change acquisition terminal body and be arranged on respectively low-pressure side line of electric force A, B, current transformer on C three-phase, described Wireless data acquisition unit and wireless data receiver include a micropower wireless communication module, Wireless data acquisition unit is connected with wireless data receiver by micropower wireless network, on wireless data receiver, also there is a UART interface, described special change acquisition terminal body comprises host CPU and AC sampling module, wireless data receiver is connected with described host CPU by described UART interface, described AC sampling module is connected with described current transformer, at high-pressure side line of electric force A, B, power taking inductive coil is also housed respectively on C three-phase, Wireless data acquisition unit is electrically connected with described power taking inductive coil, wireless data receiver is electrically connected with the special acquisition terminal body that becomes.
In said structure, described Wireless data acquisition unit also comprises collector CPU, current sampling circuit, current sample coil, voltage sampling circuit, voltage sense circuit, circuit power-supply circuit and battery feed circuit, on described collector CPU, there is electric current A/D modular converter, voltage A/D modular converter and SPI interface, collector CPU is connected with described micropower wireless communication module by described SPI interface, described current sample coil is socketed on the line of electric force of high-pressure side for responding to the electric current on the power circuit of high-pressure side and being connected with described current sampling circuit, current sampling circuit is connected with described electric current A/D modular converter, there is the electric current of capacitance leakage to the earth and be connected with described voltage sampling circuit in described voltage sense circuit for responding to high-pressure side power line lead, voltage sampling circuit is connected with described voltage A/D modular converter, described battery feed circuit is electrically connected with described circuit power-supply circuit, circuit power-supply circuit respectively with described collector CPU, the electrical connection of power taking inductive coil, in the time that circuit power-supply circuit cannot provide power supply, automatically switch to battery feed circuit power supply.
In said structure, described current sampling circuit comprises CURRENT joint, transient voltage suppressor diode TVS1, resistance R 6, resistance R 8, resistance R 32, resistance R 39, filter capacitor C1, filter capacitor C2, on described current sample coil, there is an out splice going splice, described CURRENT joint is connected with described out splice going splice, on CURRENT joint, there is the first pin and the second pin, described the first pin has current negative pole output interface, described the second pin has the anodal output interface of current, described current negative pole output interface is connected with described electric current A/D modular converter respectively with the anodal output interface of current, the two ends of described transient voltage suppressor diode TVS1 are connected with described the first pin and the second pin respectively, described resistance R 6 and resistance R 8 are connected and this line-to-ground between the two, resistance R 6 has A end, resistance R 8 has B end, described A end is connected with described the second pin, described B end is connected with described the first pin, described filter capacitor C1 and filter capacitor C2 series connection and this line-to-ground between the two, filter capacitor C1 has C end, filter capacitor C2 has D end, described C end is connected with described the first pin, described D end is connected with described the second pin, resistance R 32 described in connection between described A end and D end, resistance R 39 described in connection between described B end and C end.
In said structure, described voltage sampling circuit comprises VOL_INDUCTION solder joint, transient voltage suppressor diode TVS2, filter capacitor C20 and resistance R 2, described VOL_INDUCTION solder joint one end connects a wire, the other end has a pin, described wire points to high-pressure side line of electric force, described pin has voltage interface, described voltage interface is connected with described voltage A/D modular converter, described transient voltage suppressor diode TVS2 one end is connected with described pin, other end ground connection, described filter capacitor C20 one end is connected with described pin, other end ground connection, described resistance R 2 one end are connected with described pin, the other end and ground connection.
In said structure, described circuit power-supply circuit comprises POWER interface, rectifier bridge stack D2, resistance R 1, resistance R 3, resistance R 38, resistance R 37, schottky diode D4, diode D6, diode D12, polar capacitor C36, polar capacitor C37, polar capacitor C22, filter capacitor C21, power supply voltage stabilizing chip and polar capacitor C35, described POWER interface is electrically connected with described power taking inductive coil, POWER interface has first input end and the second input end, described first input end is connected with described rectifier bridge stack D2 respectively with the second input end, rectifier bridge stack D2 has the first output terminal and the second output terminal, described the first output terminal connects a VDD output line, described the second output terminal connects a ground wire, described VDD output line end connects a VCC output line and described polar capacitor C35, described VCC output line is electrically connected with described collector CPU, polar capacitor C35 ground connection, on VDD output line, connect successively described resistance R 1, resistance R 3, diode D6, diode D12 and power supply voltage stabilizing chip, polar capacitor C36 described in connection between described resistance R 1 and resistance R 3, polar capacitor C36 is connected with described ground wire, schottky diode D4 and resistance R 38 described in connection between described resistance R 3 and diode D6, schottky diode D4 is connected with described ground wire, resistance R 38 connects described resistance R 37, resistance R 37 ground connection, connection one power supply detection line between resistance R 38 and resistance R 37, polar capacitor C37 described in connection between described diode D6 and diode D12, polar capacitor C37 is connected with described ground wire, polar capacitor C22 described in connection between described diode D12 and power supply voltage stabilizing chip, polar capacitor C22 ground connection, filter capacitor C21 described in connection between described polar capacitor C22 and power supply voltage stabilizing chip, filter capacitor C21 ground connection, battery feed circuit described in connection between described diode D12 and polar capacitor C22, battery feed circuit comprises diode D3 and battery successively, described diode one end is connected with described VDD output line, the other end is connected with described battery, battery ground connection.
The beneficial effects of the utility model are: Wireless data acquisition unit gathers high-pressure side line of electric force A, B, electric current on C three-phase, magnitude of voltage, send wireless data receiver to by micropower wireless network, wireless data receiver sends the data to host CPU on special change acquisition terminal body by UART interface, host CPU is by high voltage side current, magnitude of voltage is changed, specially become acquisition terminal body and gather the low-pressure side line of electric force A that AC sampling module collects simultaneously, B, electric current on C three-phase, magnitude of voltage, specially become acquisition terminal body by the high voltage side current after conversion, the electric current of magnitude of voltage and low-pressure side, magnitude of voltage compares, if error exceedes certain value, can judge that low tension loop exists fault or electricity filching behavior.
Brief description of the drawings
Fig. 1 is the theory diagram of a kind of special change acquisition terminal with high tension loop monitoring of the utility model
Fig. 2 is the theory diagram of the Wireless data acquisition unit of a kind of special change acquisition terminal with high tension loop monitoring of the utility model
Fig. 3 is the circuit diagram of the current sampling circuit of a kind of special change acquisition terminal with high tension loop monitoring of the utility model
Fig. 4 is the circuit diagram of the voltage sampling circuit of a kind of special change acquisition terminal with high tension loop monitoring of the utility model
Fig. 5 is the circuit power-supply circuit of a kind of special change acquisition terminal with high tension loop monitoring of the utility model and the circuit diagram of battery feed circuit
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Shown in Fig. 1, a kind of special change acquisition terminal with high tension loop monitoring that the utility model discloses, it comprises the special change acquisition terminal body 1 that is arranged on step down side, specially becoming acquisition terminal body 1 is connected with electric company main station system 2, also comprise and be arranged on respectively high-pressure side line of electric force A, B, Wireless data acquisition unit 3 on C three-phase, be arranged on the wireless data receiver 4 on special change acquisition terminal body 1 and be arranged on respectively low-pressure side line of electric force A, B, current transformer 5 on C three-phase, Wireless data acquisition unit 3 and wireless data receiver 4 include a micropower wireless communication module 7, Wireless data acquisition unit 3 is connected with wireless data receiver 4 by micropower wireless network, on wireless data receiver 4, also there is a UART interface, specially become acquisition terminal body 1 and comprise host CPU and AC sampling module 6, wireless data receiver 4 is connected with host CPU by UART interface, AC sampling module 6 is connected with current transformer 5, at high-pressure side line of electric force A, B, power taking inductive coil is also housed respectively on C three-phase, Wireless data acquisition unit 3 is electrically connected with power taking inductive coil, wireless data receiver 4 is electrically connected with the special acquisition terminal body 1 that becomes.
Shown in Fig. 2, Wireless data acquisition unit 3 also comprises collector CPU30, current sampling circuit 31, current sample coil 32, voltage sampling circuit 33, voltage sense circuit 34, circuit power-supply circuit 35 and battery feed circuit 36, on collector CPU30, there is electric current A/D modular converter 37, voltage A/D modular converter 38 and SPI interface, collector CPU30 is connected with micropower wireless communication module 7 by SPI interface, current sample coil 32 is socketed on the line of electric force of high-pressure side and adopts current transformer mode respond to the electric current on the power circuit of high-pressure side and be connected with current sampling circuit 31, current sampling circuit 31 is connected with electric current A/D modular converter 37, obtain the electric current in the power circuit of high-pressure side by electric current A/D modular converter 37 unions, there is the electric current of capacitance leakage to the earth and be connected with voltage sampling circuit 33 in voltage sense circuit 34 for responding to high-pressure side power line lead, voltage sampling circuit 33 is connected with voltage A/D modular converter 38, obtain high-pressure side power circuit voltage-to-ground by voltage A/D modular converter 38 unions, battery feed circuit 36 is electrically connected with circuit power-supply circuit 35, circuit power-supply circuit 35 respectively with collector CPU30, the electrical connection of power taking inductive coil, from the power circuit of high-pressure side, obtain power supply by power taking inductive coil, when current value in the power circuit of high-pressure side reaches certain value (for 10A), circuit power-supply circuit 35 can provide power supply, when the current value in the power circuit of high-pressure side lower, when circuit power-supply circuit 35 cannot provide power supply, automatically switching to battery feed circuit 36 powers.
Shown in Fig. 3, for the circuit diagram of current sampling circuit 31, current sampling circuit 31 comprises CURRENT joint, transient voltage suppressor diode TVS1, resistance R 6, resistance R 8, resistance R 32, resistance R 39, filter capacitor C1, filter capacitor C2, on current sample coil 32, there is an out splice going splice, CURRENT joint is connected with out splice going splice, on CURRENT joint, there is the first pin and the second pin, the first pin has current negative pole output interface, the second pin has the anodal output interface of current, current negative pole output interface is connected with electric current A/D modular converter 37 respectively with the anodal output interface of current, the two ends of transient voltage suppressor diode TVS1 are connected with the first pin and the second pin respectively, resistance R 6 and resistance R 8 are connected and this line-to-ground between the two, resistance R 6 has A end, resistance R 8 has B end, A end is connected with the second pin, B end is connected with the first pin, filter capacitor C1 and filter capacitor C2 series connection and this line-to-ground between the two, filter capacitor C1 has C end, filter capacitor C2 has D end, C end is connected with described the first pin, D end is connected with the second pin, connection resistance R 32 between A end and D end, connection resistance R 39 between B end and C end, wherein, transient voltage suppressor diode TVS1 is for the protection of collector CPU30, resistance R 6 and resistance R 8 are current sampling resistor, with common mode interference inhibiting effect, whole circuit is converted to voltage differential signal by current sample coil 32 output currents and outputs to collector CPU30.
Shown in Fig. 4, for the circuit diagram of voltage sampling circuit 33, voltage sampling circuit 33 comprises VOL_INDUCTION solder joint, transient voltage suppressor diode TVS2, filter capacitor C20 and resistance R 2, VOL_INDUCTION solder joint one end connects a wire, the other end has a pin, wire points to high-pressure side line of electric force, pin has voltage interface, voltage interface is connected with voltage A/D modular converter 38, transient voltage suppressor diode TVS2 one end is connected with pin, other end ground connection, filter capacitor C20 one end is connected with pin, other end ground connection, resistance R 2 one end are connected with pin, the other end and ground connection, there is electric capacity Leakage Current to the earth in high-pressure side power line lead, voltage sense circuit 34 is responded to the size of leakage current, the leakage current of induction is converted to voltage by voltage sampling circuit 33, voltage A/D modular converter 38 in input collector CPU30, collector CPU30 obtains high-pressure side power circuit voltage-to-ground by voltage A/D modular converter 38 unions.
Shown in Fig. 5, for the circuit diagram of circuit power-supply circuit 35 and battery feed circuit 36, circuit power-supply circuit 35 comprises POWER interface, rectifier bridge stack D2, resistance R 1, resistance R 3, resistance R 38, resistance R 37, schottky diode D4, diode D6, diode D12, polar capacitor C36, polar capacitor C37, polar capacitor C22, filter capacitor C21, power supply voltage stabilizing chip and polar capacitor C35, POWER interface is electrically connected with power taking inductive coil, POWER interface has first input end and the second input end, first input end is connected with rectifier bridge stack D2 respectively with the second input end, rectifier bridge stack D2 has the first output terminal and the second output terminal, the first output terminal connects a VDD output line, the second output terminal connects a ground wire, VDD output line end connects a VCC output line and described polar capacitor C35, VCC output line is electrically connected with collector CPU30, polar capacitor C35 ground connection, contact resistance R1 successively on VDD output line, resistance R 3, diode D6, diode D12 and power supply voltage stabilizing chip, connection polar capacitor C36 between resistance R 1 and resistance R 3, polar capacitor C36 is connected with ground wire, connection schottky diode D4 and resistance R 38 between resistance R 3 and diode D6, schottky diode D4 is connected with ground wire, resistance R 38 contact resistance R37, resistance R 37 ground connection, connection one power supply detection line between resistance R 38 and resistance R 37, connection polar capacitor C37 between diode D6 and diode D12, polar capacitor C37 is connected with ground wire, connection polar capacitor C22 between diode D12 and power supply voltage stabilizing chip, polar capacitor C22 ground connection, connection filter capacitor C21 between polar capacitor C22 and power supply voltage stabilizing chip, filter capacitor C21 ground connection, connection battery feed circuit 36 between diode D12 and polar capacitor C22, battery feed circuit 36 comprises diode D3 and battery successively, diode one end is connected with VDD output line, the other end is connected with battery, battery ground connection, wherein, POWER interface connects power taking inductive coil, induced voltage provides vdd voltage after rectifier bridge stack D2 rectification.If the electric current in the power circuit of high-pressure side is too little, when induction power taking voltage is lower, cell voltage provides vdd voltage through diode D3, VDD provides the power supply of 3.3V after the voltage stabilizing of power supply voltage stabilizing chip is processed to system, collector CPU30 adopts MSP430FE427, MSP430FE427 is a kind of MCU chip of the MSP430 of TIX series, this chip is with 16 A/D modular converters, there are two current-differencing input channels and a voltage difference input channel, in addition MSP430FE427 flexibly clock system can be in the time less than 6us wake up from the 0.7uA standby mode (saving battery consumption mode) of low-power consumption.
In the utility model, specially become acquisition terminal body 1 in former terminal-based, hardware need not be changed, terminal program increases high voltage side current, magnitude of voltage is according to transformer and CT, the no-load voltage ratio of PT is converted to and low-pressure side electric current, the contrast of magnitude of voltage, the relatively difference of two groups of data, when difference reaches designated value (generally, current limit is 5%, voltage limit value is 10%), can judge whether low tension loop exists fault or electricity filching behavior, high owing to reading AC sampling real-time property on special change acquisition terminal body 1, be generally a millisecond rank, therefore can ensure the high voltage side current of sampling, the moment of the moment of voltage and AC sampling data is in other difference of Millisecond, ensure the real-time of both data.
The utility model adopts said structure, by current sample coil 32, adopt Current Mutual Inductance mode to respond to the electric current in the power circuit of high-pressure side, and export induction current, current sampling circuit 31 will be inputted electric current A/D modular converter 37 in collector CPU30 after induction current filtering, collector CPU30 obtains the electric current in the power circuit of high-pressure side by electric current A/D modular converter 37 unions, respond to the size of leakage current by voltage sense circuit 34, the leakage current of induction is converted to voltage by voltage sampling circuit 33, voltage A/D modular converter 38 in input collector CPU30, collector CPU30 obtains High-voltage Transmitting Line voltage by voltage A/D modular converter 38 unions, collector CPU30 passes through micropower wireless communication module 7 by the electric current of sampling, magnitude of voltage is sent to wireless data receiver 4, wireless data receiver 4 receives and sends data to special change acquisition terminal body 1, change through specially becoming acquisition terminal body 1, the signal that AC sampling module 6 is exported by collection current transformer 5 simultaneously gathers the electric current in low-pressure side power circuit, magnitude of voltage, specially become acquisition terminal body 1 and gather the electric current that AC sampling module 6 collects, magnitude of voltage, specially become acquisition terminal body 1 by the high voltage side current after conversion, the electric current of magnitude of voltage and low-pressure side, magnitude of voltage compares, the relatively difference of two class values, when difference reaches designated value (generally, current limit is 5%, limiting voltage is 10%), can judge whether low tension loop exists fault or electricity filching behavior.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, can there is various distortion and amendment, retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.

Claims (5)

1. the special change acquisition terminal with high tension loop monitoring, it comprises the special change acquisition terminal body that is arranged on step down side, described special change acquisition terminal body is connected with electric company main station system, it is characterized in that: also comprise and be arranged on respectively high-pressure side line of electric force A, B, Wireless data acquisition unit on C three-phase, be arranged on the wireless data receiver on described special change acquisition terminal body and be arranged on respectively low-pressure side line of electric force A, B, current transformer on C three-phase, described Wireless data acquisition unit and wireless data receiver include a micropower wireless communication module, Wireless data acquisition unit is connected with wireless data receiver by micropower wireless network, on wireless data receiver, also there is a UART interface, described special change acquisition terminal body comprises host CPU and AC sampling module, wireless data receiver is connected with described host CPU by described UART interface, described AC sampling module is connected with described current transformer, at high-pressure side line of electric force A, B, power taking inductive coil is also housed respectively on C three-phase, Wireless data acquisition unit is electrically connected with described power taking inductive coil, wireless data receiver is electrically connected with the special acquisition terminal body that becomes.
2. a kind of special change acquisition terminal with high tension loop monitoring according to claim 1, it is characterized in that: described Wireless data acquisition unit also comprises collector CPU, current sampling circuit, current sample coil, voltage sampling circuit, voltage sense circuit, circuit power-supply circuit and battery feed circuit, on described collector CPU, there is electric current A/D modular converter, voltage A/D modular converter and SPI interface, collector CPU is connected with described micropower wireless communication module by described SPI interface, described current sample coil is socketed on the line of electric force of high-pressure side for responding to the electric current on the power circuit of high-pressure side and being connected with described current sampling circuit, current sampling circuit is connected with described electric current A/D modular converter, there is the electric current of capacitance leakage to the earth and be connected with described voltage sampling circuit in described voltage sense circuit for responding to high-pressure side power line lead, voltage sampling circuit is connected with described voltage A/D modular converter, described battery feed circuit is electrically connected with described circuit power-supply circuit, circuit power-supply circuit respectively with described collector CPU, the electrical connection of power taking inductive coil, in the time that circuit power-supply circuit cannot provide power supply, automatically switch to battery feed circuit power supply.
3. a kind of special change acquisition terminal with high tension loop monitoring according to claim 2, it is characterized in that: described current sampling circuit comprises CURRENT joint, transient voltage suppressor diode TVS1, resistance R 6, resistance R 8, resistance R 32, resistance R 39, filter capacitor C1, filter capacitor C2, on described current sample coil, there is an out splice going splice, described CURRENT joint is connected with described out splice going splice, on CURRENT joint, there is the first pin and the second pin, described the first pin has current negative pole output interface, described the second pin has the anodal output interface of current, described current negative pole output interface is connected with described electric current A/D modular converter respectively with the anodal output interface of current, the two ends of described transient voltage suppressor diode TVS1 are connected with described the first pin and the second pin respectively, described resistance R 6 and resistance R 8 are connected and this line-to-ground between the two, resistance R 6 has A end, resistance R 8 has B end, described A end is connected with described the second pin, described B end is connected with described the first pin, described filter capacitor C1 and filter capacitor C2 series connection and this line-to-ground between the two, filter capacitor C1 has C end, filter capacitor C2 has D end, described C end is connected with described the first pin, described D end is connected with described the second pin, resistance R 32 described in connection between described A end and D end, resistance R 39 described in connection between described B end and C end.
4. a kind of special change acquisition terminal with high tension loop monitoring according to claim 2, it is characterized in that: described voltage sampling circuit comprises VOL_INDUCTION solder joint, transient voltage suppressor diode TVS2, filter capacitor C20 and resistance R 2, described VOL_INDUCTION solder joint one end connects a wire, the other end has a pin, described wire points to high-pressure side line of electric force, described pin has voltage interface, described voltage interface is connected with described voltage A/D modular converter, described transient voltage suppressor diode TVS2 one end is connected with described pin, other end ground connection, described filter capacitor C20 one end is connected with described pin, other end ground connection, described resistance R 2 one end are connected with described pin, the other end and ground connection.
5. a kind of special change acquisition terminal with high tension loop monitoring according to claim 2, it is characterized in that: described circuit power-supply circuit comprises POWER interface, rectifier bridge stack D2, resistance R 1, resistance R 3, resistance R 38, resistance R 37, schottky diode D4, diode D6, diode D12, polar capacitor C36, polar capacitor C37, polar capacitor C22, filter capacitor C21, power supply voltage stabilizing chip and polar capacitor C35, described POWER interface is electrically connected with described power taking inductive coil, POWER interface has first input end and the second input end, described first input end is connected with described rectifier bridge stack D2 respectively with the second input end, rectifier bridge stack D2 has the first output terminal and the second output terminal, described the first output terminal connects a VDD output line, described the second output terminal connects a ground wire, described VDD output line end connects a VCC output line and described polar capacitor C35, described VCC output line is electrically connected with described collector CPU, polar capacitor C35 ground connection, on VDD output line, connect successively described resistance R 1, resistance R 3, diode D6, diode D12 and power supply voltage stabilizing chip, polar capacitor C36 described in connection between described resistance R 1 and resistance R 3, polar capacitor C36 is connected with described ground wire, schottky diode D4 and resistance R 38 described in connection between described resistance R 3 and diode D6, schottky diode D4 is connected with described ground wire, resistance R 38 connects described resistance R 37, resistance R 37 ground connection, connection one power supply detection line between resistance R 38 and resistance R 37, polar capacitor C37 described in connection between described diode D6 and diode D12, polar capacitor C37 is connected with described ground wire, polar capacitor C22 described in connection between described diode D12 and power supply voltage stabilizing chip, polar capacitor C22 ground connection, filter capacitor C21 described in connection between described polar capacitor C22 and power supply voltage stabilizing chip, filter capacitor C21 ground connection, battery feed circuit described in connection between described diode D12 and polar capacitor C22, battery feed circuit comprises diode D3 and battery successively, described diode one end is connected with described VDD output line, the other end is connected with described battery, battery ground connection.
CN201420410068.2U 2014-07-23 2014-07-23 A kind of special change acquisition terminal with high tension loop monitoring Active CN204008906U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104793538A (en) * 2015-04-14 2015-07-22 科力远(上海)汽车动力电池系统有限公司 High voltage interlock monitoring system of vehicular hybrid power battery
CN105652053A (en) * 2016-03-11 2016-06-08 国网山东省电力公司商河县供电公司 Portable electric energy metering and electric shock preventing device
CN108023412A (en) * 2016-10-28 2018-05-11 通用电气公司 System and method for the output voltage of active control wireless power transmission system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104793538A (en) * 2015-04-14 2015-07-22 科力远(上海)汽车动力电池系统有限公司 High voltage interlock monitoring system of vehicular hybrid power battery
CN104793538B (en) * 2015-04-14 2017-09-26 科力远混合动力技术有限公司 A kind of automotive mixed conjunction electrokinetic cell high-voltage interlocking monitoring system
CN105652053A (en) * 2016-03-11 2016-06-08 国网山东省电力公司商河县供电公司 Portable electric energy metering and electric shock preventing device
CN105652053B (en) * 2016-03-11 2018-09-28 国网山东省电力公司商河县供电公司 Portable electric energy metering, anti-electric shock apparatus
CN108023412A (en) * 2016-10-28 2018-05-11 通用电气公司 System and method for the output voltage of active control wireless power transmission system
CN108023412B (en) * 2016-10-28 2023-07-28 通用电气公司 System and method for actively controlling output voltage of wireless power transfer system

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