CN110836727A - Cable joint temperature detection system based on wireless transmission and detection method thereof - Google Patents

Cable joint temperature detection system based on wireless transmission and detection method thereof Download PDF

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Publication number
CN110836727A
CN110836727A CN201911059625.4A CN201911059625A CN110836727A CN 110836727 A CN110836727 A CN 110836727A CN 201911059625 A CN201911059625 A CN 201911059625A CN 110836727 A CN110836727 A CN 110836727A
Authority
CN
China
Prior art keywords
temperature
signal
module
alarm
data concentrator
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
CN201911059625.4A
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Chinese (zh)
Inventor
邹建中
石龙
薛大业
刘德宁
郦丹
徐莉莉
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 Funing County Power Supply Branch
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Jiangsu Electric Power Co Ltd Funing County Power Supply Branch
Yancheng 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 Funing County Power Supply Branch, Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd filed Critical State Grid Jiangsu Electric Power Co Ltd Funing County Power Supply Branch
Priority to CN201911059625.4A priority Critical patent/CN110836727A/en
Publication of CN110836727A publication Critical patent/CN110836727A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02Means for indicating or recording specially adapted for thermometers
    • G01K1/024Means for indicating or recording specially adapted for thermometers for remote indication
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The invention provides a cable joint temperature detection system based on wireless transmission, which comprises a signal acquisition unit, a data concentrator and a monitoring center, wherein the signal acquisition unit is used for acquiring a signal; the temperature detection system adopts a wireless communication technology to transmit a plurality of temperature signals acquired by the signal acquisition units to the data concentrator, compares the temperature signals with a preset alarm value for judgment, and timely sends out an alarm and uploads the alarm to the monitoring center if an abnormity occurs. The invention provides a cable joint temperature detection system and method based on wireless transmission.

Description

Cable joint temperature detection system based on wireless transmission and detection method thereof
Technical Field
The invention belongs to the technical field of power detection, and particularly relates to a cable joint temperature detection system based on wireless transmission and a detection method thereof.
Background
With the continuous development of science and technology, people have higher and higher requirements on electric power, and further, the requirements on power supply reliability are also continuously improved. The power cable is used as an important component of a power system, and safe and reliable operation is an important guarantee for power supply reliability.
In an electric power system, various cable joints are large in number, wide in distribution and complex in working environment, and can generate heat due to overlarge contact resistance, so that local temperature is overhigh and even is burnt out, and fire and large-area power failure are caused. Most of the existing cable joint temperature detection systems in the market at present adopt independent temperature measurement sensors, and the sensors are arranged on the outer surface layer of the cable head in a bundling mode and the like. After the equipment runs for a period of time, the sensor is not firm and only contacts with the outer surface of the cable head, and the temperature measurement is inaccurate.
The invention provides a cable joint temperature detection system based on wireless transmission, wherein a temperature sensor is directly poured in a cable accessory and directly contacts with a cable, and meanwhile, a wireless communication technology is adopted to upload an acquired temperature signal to a monitoring center, so that the accuracy of measurement is improved.
Disclosure of Invention
The invention provides a cable joint temperature detection system and method based on wireless transmission.
The invention particularly relates to a cable joint temperature detection system based on wireless transmission, which comprises a signal acquisition unit, a data concentrator and a monitoring center, wherein the signal acquisition unit is sequentially connected with the data concentrator and the monitoring center; the temperature detection system adopts a wireless communication technology to transmit a plurality of temperature signals acquired by the signal acquisition units to the data concentrator, compares the temperature signals with a preset alarm value for judgment, and timely sends out an alarm and uploads the alarm to the monitoring center if an abnormity occurs.
The signal acquisition unit comprises a temperature sensor, an A/D conversion module, a first controller and a wireless communication module, wherein the temperature sensor adopts a digital sensor, is directly poured in the cable accessory and is directly contacted with the cable, so that the temperature can be accurately measured;
the A/D conversion module converts the acquired temperature signal into a digital signal;
the first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module transmits the temperature signal to the data concentrator by adopting a ZigBee wireless communication technology, and the wireless communication module also receives a control instruction.
The data concentrator comprises a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, wherein the second controller is respectively connected with the signal receiving module, the storage module, the key input module, the display module, the alarm module and the communication module; the signal receiving module receives the information uploaded by the signal acquisition unit, the information is stored through the storage module, the second controller compares and judges a temperature signal with a preset alarm value, and if the temperature signal is greater than the alarm value, an alarm signal is sent out through the alarm module; the communication module uploads the processed temperature signal and the processed alarm signal to the monitoring center by adopting a GPRS technology;
the key input module is combined with the display unit to realize parameter setting, temperature information and alarm information consulting, and the parameters comprise the alarm value and the monitoring period;
one data concentrator can collect output signals of a plurality of signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.
The monitoring center receives the information uploaded by the data concentrator, realizes real-time monitoring of the temperature of the cable joint, can remotely set the parameters, and can send instruction signals to the temperature sensor through the data concentrator.
The invention also provides a detection method of the cable joint temperature detection system based on wireless transmission, which comprises the following steps:
step (1): the temperature sensor collects a temperature signal of the cable joint;
step (2): A/D conversion is carried out through the A/D conversion module;
and (3): transmitting the temperature signal to the data concentrator via the wireless communication module;
and (4): storing information through the storage module;
and (5): the second controller compares the collected information with the alarm value: if the alarm value is larger than the alarm value, an alarm signal is sent out through the alarm unit, and storage and display are carried out;
and (6): and uploading the temperature information and the alarm signal to the monitoring center through the communication module.
Drawings
Fig. 1 is a schematic structural diagram of a cable joint temperature detection system based on wireless transmission according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of a cable joint temperature detection system based on wireless transmission according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the temperature detection system of the present invention includes a signal acquisition unit, a data concentrator, and a monitoring center, wherein the signal acquisition unit is connected with the data concentrator and the monitoring center in sequence; the temperature detection system adopts a wireless communication technology to transmit a plurality of temperature signals acquired by the signal acquisition units to the data concentrator, compares the temperature signals with a preset alarm value for judgment, and timely sends out an alarm and uploads the alarm to the monitoring center if an abnormity occurs.
The signal acquisition unit comprises a temperature sensor, an A/D conversion module, a first controller and a wireless communication module, wherein the temperature sensor adopts a digital sensor, is directly poured in the cable accessory and is directly contacted with the cable, so that the temperature can be accurately measured;
the A/D conversion module converts the acquired temperature signal into a digital signal;
the first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module transmits the temperature signal to the data concentrator by adopting a ZigBee wireless communication technology, and the wireless communication module also receives a control instruction.
The data concentrator comprises a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, wherein the second controller is respectively connected with the signal receiving module, the storage module, the key input module, the display module, the alarm module and the communication module; the signal receiving module receives the information uploaded by the signal acquisition unit, the information is stored through the storage module, the second controller compares and judges a temperature signal with a preset alarm value, and if the temperature signal is greater than the alarm value, an alarm signal is sent out through the alarm module; the communication module uploads the processed temperature signal and the processed alarm signal to the monitoring center by adopting a GPRS technology;
the key input module is combined with the display unit to realize parameter setting, temperature information and alarm information consulting, and the parameters comprise the alarm value and the monitoring period;
one data concentrator can collect output signals of a plurality of signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.
The monitoring center receives the information uploaded by the data concentrator, realizes real-time monitoring of the temperature of the cable joint, can remotely set the parameters, and can send instruction signals to the temperature sensor through the data concentrator.
The invention also provides a detection method of the cable joint temperature detection system based on wireless transmission, which comprises the following steps:
step (1): the temperature sensor collects a temperature signal of the cable joint;
step (2): A/D conversion is carried out through the A/D conversion module;
and (3): transmitting the temperature signal to the data concentrator via the wireless communication module;
and (4): storing information through the storage module;
and (5): the second controller compares the collected information with the alarm value: if the alarm value is larger than the alarm value, an alarm signal is sent out through the alarm unit, and storage and display are carried out;
and (6): and uploading the temperature information and the alarm signal to the monitoring center through the communication module.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A cable joint temperature detection system based on wireless transmission is characterized by comprising a signal acquisition unit, a data concentrator and a monitoring center, wherein the signal acquisition unit is sequentially connected with the data concentrator and the monitoring center; the temperature detection system adopts a wireless communication technology to transmit a plurality of temperature signals acquired by the signal acquisition units to the data concentrator, compares the temperature signals with a preset alarm value for judgment, and timely sends out an alarm and uploads the alarm to the monitoring center if an abnormity occurs.
2. The system for detecting the temperature of the cable joint based on the wireless transmission is characterized in that the signal acquisition unit comprises a temperature sensor, an A/D conversion module, a first controller and a wireless communication module, the temperature sensor adopts a digital sensor, and the temperature sensor is directly cast in the cable accessory and is in direct contact with the cable, so that the temperature can be accurately measured;
the A/D conversion module converts the acquired temperature signal into a digital signal;
the first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module transmits the temperature signal to the data concentrator by adopting a ZigBee wireless communication technology, and the wireless communication module also receives a control instruction.
3. The system for detecting the temperature of the cable joint based on the wireless transmission is characterized in that the data concentrator comprises a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, wherein the second controller is respectively connected with the signal receiving module, the storage module, the key input module, the display module, the alarm module and the communication module; the signal receiving module receives the information uploaded by the signal acquisition unit, the information is stored through the storage module, the second controller compares and judges a temperature signal with a preset alarm value, and if the temperature signal is greater than the alarm value, an alarm signal is sent out through the alarm module; the communication module uploads the processed temperature signal and the processed alarm signal to the monitoring center by adopting a GPRS technology;
the key input module is combined with the display unit to realize parameter setting, temperature information and alarm information consulting, and the parameters comprise the alarm value and the monitoring period;
one data concentrator can collect output signals of a plurality of signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.
4. The system according to claim 3, wherein the monitoring center receives information uploaded by the data concentrator, so as to realize real-time monitoring of the temperature of the cable joint, and at the same time, the parameters can be set remotely, and command signals can be sent to the temperature sensor through the data concentrator.
5. The method for detecting the cable joint temperature detection system based on wireless transmission according to any one of claims 1-4, wherein the method comprises the following steps:
step (1): the temperature sensor collects a temperature signal of the cable joint;
step (2): A/D conversion is carried out through the A/D conversion module;
and (3): transmitting the temperature signal to the data concentrator via the wireless communication module;
and (4): storing information through the storage module;
and (5): the second controller compares the collected information with the alarm value: if the alarm value is larger than the alarm value, an alarm signal is sent out through the alarm unit, and storage and display are carried out;
and (6): and uploading the temperature information and the alarm signal to the monitoring center through the communication module.
CN201911059625.4A 2019-11-01 2019-11-01 Cable joint temperature detection system based on wireless transmission and detection method thereof Pending CN110836727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911059625.4A CN110836727A (en) 2019-11-01 2019-11-01 Cable joint temperature detection system based on wireless transmission and detection method thereof

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Application Number Priority Date Filing Date Title
CN201911059625.4A CN110836727A (en) 2019-11-01 2019-11-01 Cable joint temperature detection system based on wireless transmission and detection method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461388A (en) * 2020-11-11 2021-03-09 上海邦有道商贸有限公司 Temperature detecting system for temperature controller
CN112880870A (en) * 2021-01-15 2021-06-01 珠海赣星自动化设备有限公司 Temperature detection system of cable head temperature measuring device
CN112903144A (en) * 2021-04-01 2021-06-04 珠海领航电气有限公司 Cable head temperature monitoring display device, system and method based on RFID

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557996A (en) * 1978-10-16 1980-04-30 Baker Protective Services Central station type alarm unit and method therefor
CN201255666Y (en) * 2008-09-23 2009-06-10 於爱东 Wireless temperature measurement and monitoring apparatus for transforming plant
CN104950949A (en) * 2015-06-12 2015-09-30 国家电网公司 Temperature monitoring device and temperature monitoring method for cable interlayer
CN108931318A (en) * 2018-08-01 2018-12-04 深圳供电局有限公司 Temperature monitoring system at a kind of power distribution network cable connector
CN109186779A (en) * 2018-10-13 2019-01-11 国家电网有限公司 A kind of substation equipment temperature monitoring warning system
CN109238481A (en) * 2018-09-21 2019-01-18 深圳供电局有限公司 Cable temperature detection device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557996A (en) * 1978-10-16 1980-04-30 Baker Protective Services Central station type alarm unit and method therefor
CN201255666Y (en) * 2008-09-23 2009-06-10 於爱东 Wireless temperature measurement and monitoring apparatus for transforming plant
CN104950949A (en) * 2015-06-12 2015-09-30 国家电网公司 Temperature monitoring device and temperature monitoring method for cable interlayer
CN108931318A (en) * 2018-08-01 2018-12-04 深圳供电局有限公司 Temperature monitoring system at a kind of power distribution network cable connector
CN109238481A (en) * 2018-09-21 2019-01-18 深圳供电局有限公司 Cable temperature detection device
CN109186779A (en) * 2018-10-13 2019-01-11 国家电网有限公司 A kind of substation equipment temperature monitoring warning system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461388A (en) * 2020-11-11 2021-03-09 上海邦有道商贸有限公司 Temperature detecting system for temperature controller
CN112880870A (en) * 2021-01-15 2021-06-01 珠海赣星自动化设备有限公司 Temperature detection system of cable head temperature measuring device
CN112903144A (en) * 2021-04-01 2021-06-04 珠海领航电气有限公司 Cable head temperature monitoring display device, system and method based on RFID
CN112903144B (en) * 2021-04-01 2022-01-28 珠海领航电气有限公司 Cable head temperature monitoring display device, system and method based on RFID

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Application publication date: 20200225

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