CN113267214A - Abnormal state detection device for power cabinet - Google Patents

Abnormal state detection device for power cabinet Download PDF

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Publication number
CN113267214A
CN113267214A CN202110532200.1A CN202110532200A CN113267214A CN 113267214 A CN113267214 A CN 113267214A CN 202110532200 A CN202110532200 A CN 202110532200A CN 113267214 A CN113267214 A CN 113267214A
Authority
CN
China
Prior art keywords
circuit
microcontroller
control circuit
serial port
network transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110532200.1A
Other languages
Chinese (zh)
Inventor
张维
陈光贤
刘蔚芹
刘凌晖
缪长钦
金科
王生辉
张安
王亨晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Jiangsu Electric Power Co ltd Haian Power Supply Branch
Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Jiangsu Electric Power Co ltd Haian Power Supply Branch
Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Jiangsu Electric Power Co ltd Haian Power Supply Branch, Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd filed Critical State Grid Jiangsu Electric Power Co ltd Haian Power Supply Branch
Priority to CN202110532200.1A priority Critical patent/CN113267214A/en
Publication of CN113267214A publication Critical patent/CN113267214A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • G05B19/0425Safety, monitoring
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24Circuit arrangements for boards or switchyards

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a device for detecting abnormal states of an electric power cabinet, which comprises a microcontroller, a network transmission module, a data acquisition module and an external control module, wherein the network transmission module is used for transmitting data to the external control module; the network transmission module comprises a control circuit, a serial port receiving voltage conversion circuit, a serial port sending voltage conversion circuit, a reset control circuit, an enabling control circuit and a power supply control circuit; the microcontroller is connected with the serial port receiving voltage conversion circuit and the serial port sending voltage conversion circuit of the network transmission module to perform level voltage conversion so as to realize serial port data interaction; the microcontroller is connected with the reset control circuit, the enable control circuit and the power supply control circuit of the network transmission module. The invention is used for monitoring the abnormal state of the power cabinet and the cabinet, and has accuracy and good effect; meanwhile, the device can also be extended to cabinets of various mobile, telecommunication, railway and shipping systems which need to be monitored in a closed mode.

Description

Abnormal state detection device for power cabinet
Technical Field
The invention relates to an abnormal state detection device for an electric power cabinet.
Background
In daily work, the power cabinet is opened without authorization, the safety patrol of operation and maintenance personnel has periodicity, the opened cabinet cannot be found in time, potential safety hazards exist, the cabinets operated on the site of a power system are various, a public box transformer, a column distribution box, a high-low voltage ring main unit, a cable branch box and a metering box adopt mechanical and physical sealing measures, and the measures cause great difficulty in safe operation and maintenance and timely investigation against electricity stealing.
Disclosure of Invention
The invention aims to provide an electric power cabinet abnormal state detection device for monitoring the state of a cabinet.
The technical solution of the invention is as follows:
the utility model provides an electric power cabinet abnormal state detection device which characterized by: the system comprises a microcontroller, a network transmission module, a data acquisition module and an external control module; the network transmission module comprises a control circuit, a serial port receiving voltage conversion circuit, a serial port sending voltage conversion circuit, a reset control circuit, an enabling control circuit and a power supply control circuit; the microcontroller is connected with the serial port receiving voltage conversion circuit and the serial port sending voltage conversion circuit of the network transmission module to perform level voltage conversion so as to realize serial port data interaction; the microcontroller is connected with a reset control circuit, an enable control circuit and a power supply control circuit of the network transmission module;
the data acquisition module comprises an illumination sensor and a vibration sensor, the two sensors acquire signals and convert the signals into voltage values, a sensor acquisition signal source is connected with an ADC (analog to digital converter) of the microcontroller, and the sensors are connected with a fixed resistor in series for voltage division;
the peripheral control module comprises an LED control circuit, an unlocking signal control circuit and a buzzer signal control circuit; and GPIO level output control is adopted between the peripheral control unit and the microcontroller.
A microcontroller power supply filter circuit and a microcontroller main and auxiliary crystal oscillator circuit which are connected with the microprocessor are additionally arranged, and the microcontroller starts a selection circuit and a microcontroller reset circuit; the crystal oscillator circuit is mainly used for enabling the microcontroller clock to operate; the microcontroller start selection circuit is because STM32F103 has multiple start selections, and this circuit is used to select the internal flash start.
The network transmission module is provided with an SIM circuit and a power supply filter circuit.
And a microcontroller program downloading interface circuit is additionally arranged.
The invention is used for monitoring the abnormal state of the power cabinet and the cabinet, and has accuracy and good effect; meanwhile, the device can also be extended to cabinets of various mobile, telecommunication, railway and shipping systems which need to be monitored in a closed mode.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a block diagram of the composition of the present invention.
Fig. 2 is a diagram of an STM32 master control circuit.
Fig. 3 is a diagram of an STM32 filter circuit.
Fig. 4 is a circuit diagram of an STM32 auxiliary crystal oscillator.
FIG. 5 is a STM32 start selection diagram.
Fig. 6 is a circuit diagram of the STM32 master crystal oscillator.
Fig. 7 is a diagram of an STM32 start selection circuit.
Fig. 8 is a diagram of an STM32 reset circuit.
Fig. 9 is a BC20 control circuit diagram.
Fig. 10 is a BC20 power supply filter circuit diagram.
Fig. 11 is a SIM card peripheral circuit diagram.
Fig. 12 is a BC20 enable pin level shift circuit diagram.
Fig. 13 is a BC20 supply pin level shifting circuit diagram.
Fig. 14 is a BC20 reset pin level transition diagram.
Fig. 15 is a serial port receiving voltage conversion circuit diagram of BC 20.
Fig. 16 is a BC20 serial port transmission voltage conversion circuit diagram.
Fig. 17 is an LED lamp circuit diagram.
Fig. 18 is a shock sensor acquisition circuit diagram.
Fig. 19 is an illumination sensor acquisition circuit diagram.
Fig. 20 is a buzzer power layout diagram.
FIG. 21 is a circuit diagram of a download program interface.
FIG. 22 is a peripheral interface circuit diagram.
Fig. 23 is an unlock signal control circuit diagram.
Fig. 24 is a schematic workflow diagram.
Detailed Description
An abnormal state detection device for an electric power cabinet comprises a microcontroller 1, a network transmission module 2, a data acquisition module 3 and an external control module 4; the network transmission module adopts BC20 and comprises a control circuit 5, a serial port receiving voltage conversion circuit 6, a serial port sending voltage conversion circuit 7, a reset control circuit 8, an enable control circuit 9 and a power supply control circuit 10; the microcontroller is connected with a serial port receiving voltage conversion circuit 13 and a serial port sending voltage conversion circuit 14 of the network transmission module to perform level voltage conversion so as to realize serial port data interaction; the microcontroller is connected with a reset control circuit 15, an enable control circuit 16 and a power supply control circuit 17 of the network transmission module;
the data acquisition module comprises an illumination sensor 26 and a vibration sensor 27, the two sensors acquire signals and convert the signals into voltage values, the data acquisition module mainly comprises the vibration sensor and a light intensity sensor, the two sensors acquire signals and convert the signals into voltage values, and a sensor acquisition signal source is connected with an ADC (analog to digital converter) of the microcontroller. The sensor divides voltage by connecting with a fixed resistor in series; (the preferred model of the photosensor is 5506 photo resistors and the shock sensor is 801S shock sensor).
The peripheral control module comprises an LED control circuit 18, an unlocking signal control circuit 19 and a buzzer signal control circuit 20; and GPIO level output control is adopted between the peripheral control unit and the microcontroller. The equipment comprises four LEDs, a network signal indicator light, a system state indicator light, a GPS signal indicator light and a power indicator light. The power indicator lamp is directly connected with a power supply, the network signal lamp is connected with an LED pin of the NB module, and the system status lamp and the GPS signal indicator lamp are managed and controlled by the microcontroller. In addition, all the LEDs have an enable control, which is also controlled by the microcontroller. The lock signal control is also controlled by GPIOB15 of the microcontroller, which is connected from the top plate to the bottom plate mainly through the pin header. Buzzer control is controlled by GPIOB12 of the microcontroller, and low level sound.
A microcontroller power supply filter circuit 21 and microcontroller main and auxiliary crystal oscillator circuits 22 and 23 which are connected with the microprocessor are additionally arranged, and the microcontroller starts a selection circuit 24 and a microcontroller reset circuit 25; the crystal oscillator circuit is mainly used for enabling the microcontroller clock to operate; the microcontroller start selection circuit is because STM32F103 has multiple start selections, and this circuit is used to select the internal flash start.
The network transmission module is provided with a SIM circuit 11 (when the network module is an NB module, it needs to be supported by the SIM circuit), and a power filter circuit 12. And a microcontroller program downloading interface circuit is additionally arranged.
When the device works, the device is powered on, hardware peripherals are initialized, configuration in the flash and a network transmission module are read to request to connect a cloud platform and establish a task thread; the reporting state service mainly reports the position state of the equipment periodically, collects data collected by the monitoring task mainly monitoring the vibration sensor and the illumination sensor, triggers an alarm if the data exceeds a set threshold value, and reports the alarm to the cloud platform; the platform command receiving task mainly receives a command issued by the cloud platform; the serial port debugging task mainly monitors information input by a serial port debugging user, and is mainly used for debugging and checking equipment.

Claims (4)

1. The utility model provides an electric power cabinet abnormal state detection device which characterized by: the system comprises a microcontroller, a network transmission module, a data acquisition module and an external control module; the network transmission module comprises a control circuit, a serial port receiving voltage conversion circuit, a serial port sending voltage conversion circuit, a reset control circuit, an enabling control circuit and a power supply control circuit; the microcontroller is connected with the serial port receiving voltage conversion circuit and the serial port sending voltage conversion circuit of the network transmission module to perform level voltage conversion so as to realize serial port data interaction; the microcontroller is connected with a reset control circuit, an enable control circuit and a power supply control circuit of the network transmission module;
the data acquisition module comprises an illumination sensor and a vibration sensor, the two sensors acquire signals and convert the signals into voltage values, a sensor acquisition signal source is connected with an ADC (analog to digital converter) of the microcontroller, and the sensors are connected with a fixed resistor in series for voltage division;
the peripheral control module comprises an LED control circuit, an unlocking signal control circuit and a buzzer signal control circuit; GPIO level output control is adopted between the peripheral control main and the microcontroller;
when the device works, the device is powered on, hardware peripherals are initialized, configuration in the flash and a network transmission module are read to request to connect a cloud platform and establish a task thread; the reporting state service mainly reports the position state of the equipment periodically, collects data collected by the monitoring task mainly monitoring the vibration sensor and the illumination sensor, triggers an alarm if the data exceeds a set threshold value, and reports the alarm to the cloud platform; the platform command receiving task mainly receives a command issued by the cloud platform; the serial port debugging task mainly monitors information input by a serial port debugging user, and is mainly used for debugging and checking equipment.
2. The power cabinet abnormal state detection device according to claim 1, wherein: a microcontroller power supply filter circuit and a microcontroller main and auxiliary crystal oscillator circuit which are connected with the microprocessor are additionally arranged, and the microcontroller starts a selection circuit and a microcontroller reset circuit; the crystal oscillator circuit is mainly used for enabling the microcontroller clock to operate; the microcontroller start selection circuit is because STM32F103 has multiple start selections, and this circuit is used to select the internal flash start.
3. The power cabinet abnormal state detection device according to claim 1 or 2, wherein: the network transmission module is provided with an SIM circuit and a power supply filter circuit.
4. The power cabinet abnormal state detection device according to claim 1 or 2, wherein: and a microcontroller program downloading interface circuit is additionally arranged.
CN202110532200.1A 2021-05-17 2021-05-17 Abnormal state detection device for power cabinet Pending CN113267214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110532200.1A CN113267214A (en) 2021-05-17 2021-05-17 Abnormal state detection device for power cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110532200.1A CN113267214A (en) 2021-05-17 2021-05-17 Abnormal state detection device for power cabinet

Publications (1)

Publication Number Publication Date
CN113267214A true CN113267214A (en) 2021-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110532200.1A Pending CN113267214A (en) 2021-05-17 2021-05-17 Abnormal state detection device for power cabinet

Country Status (1)

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CN (1) CN113267214A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2510937Y (en) * 2001-12-27 2002-09-11 宋克强 Box, cabinet anti-theft device
CN102841596A (en) * 2012-09-26 2012-12-26 华北电力大学(保定) Intelligent monitoring method for power cabinet door state
CN202949484U (en) * 2012-12-06 2013-05-22 河北师范大学 Remote monitoring system for electric power measuring box
KR101329182B1 (en) * 2013-03-21 2013-11-13 디아이케이(주) Distribution board, motor control panel and cabinet panel with function of auto-diagnosing deterioration for jointing portion of bus bar
CN206989993U (en) * 2017-06-15 2018-02-09 山东科技大学 A kind of power distribution cabinet with real time monitoring function
CN109393785A (en) * 2018-12-14 2019-03-01 无锡铭安安全设备有限公司 Internet of Things type inflammable thing, poisonous substances safety cabinet
CN110601024A (en) * 2019-10-18 2019-12-20 哈尔滨朗昇电气股份有限公司 Anti-theft power distribution cabinet
CN210666905U (en) * 2019-12-05 2020-06-02 天津耀通科技股份有限公司 Take municipal street lamp electric power intelligence inspection terminal of GPS location and control
CN211377187U (en) * 2019-12-31 2020-08-28 重庆朗天通讯股份有限公司 Intelligent acquisition power box
CN112003159A (en) * 2020-08-13 2020-11-27 江苏中顺电气有限公司 AC distribution box convenient to maintain
CN212807122U (en) * 2020-08-08 2021-03-26 深圳市兴电科技股份有限公司 Equipment state intellectual detection system fortune dimension case
CN215009761U (en) * 2021-05-17 2021-12-03 国网江苏省电力有限公司南通供电分公司 Novel abnormal state detection device for cabinets

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2510937Y (en) * 2001-12-27 2002-09-11 宋克强 Box, cabinet anti-theft device
CN102841596A (en) * 2012-09-26 2012-12-26 华北电力大学(保定) Intelligent monitoring method for power cabinet door state
CN202949484U (en) * 2012-12-06 2013-05-22 河北师范大学 Remote monitoring system for electric power measuring box
KR101329182B1 (en) * 2013-03-21 2013-11-13 디아이케이(주) Distribution board, motor control panel and cabinet panel with function of auto-diagnosing deterioration for jointing portion of bus bar
CN206989993U (en) * 2017-06-15 2018-02-09 山东科技大学 A kind of power distribution cabinet with real time monitoring function
CN109393785A (en) * 2018-12-14 2019-03-01 无锡铭安安全设备有限公司 Internet of Things type inflammable thing, poisonous substances safety cabinet
CN110601024A (en) * 2019-10-18 2019-12-20 哈尔滨朗昇电气股份有限公司 Anti-theft power distribution cabinet
CN210666905U (en) * 2019-12-05 2020-06-02 天津耀通科技股份有限公司 Take municipal street lamp electric power intelligence inspection terminal of GPS location and control
CN211377187U (en) * 2019-12-31 2020-08-28 重庆朗天通讯股份有限公司 Intelligent acquisition power box
CN212807122U (en) * 2020-08-08 2021-03-26 深圳市兴电科技股份有限公司 Equipment state intellectual detection system fortune dimension case
CN112003159A (en) * 2020-08-13 2020-11-27 江苏中顺电气有限公司 AC distribution box convenient to maintain
CN215009761U (en) * 2021-05-17 2021-12-03 国网江苏省电力有限公司南通供电分公司 Novel abnormal state detection device for cabinets

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Application publication date: 20210817

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