CN104483032A - Ring main unit cable head temperature on-line monitoring device and temperature measuring method - Google Patents
Ring main unit cable head temperature on-line monitoring device and temperature measuring method Download PDFInfo
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- CN104483032A CN104483032A CN201410835196.6A CN201410835196A CN104483032A CN 104483032 A CN104483032 A CN 104483032A CN 201410835196 A CN201410835196 A CN 201410835196A CN 104483032 A CN104483032 A CN 104483032A
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Abstract
The invention discloses a ring main unit cable head temperature on-line monitoring device and a temperature measuring method, belongs to the technical field of electric power and particularly relates to a cable head temperature measurement device. A, B and C three-phase digital temperature sensors are installed on a wire incoming cable head and a wire outgoing cable head of a ring main unit and serve as temperature acquisition modules; a 2.4 GHz high-performance radio frequency transceiver with the Zigbee wireless transmission function is installed on a front side panel of the ring main unit and serves as a wireless transceiver; a single-chip microcomputer is arranged in the ring main unit and serves as a control module; the control module single-chip microcomputer is connected with a DTU through an RS485 interface and a signal line and then connected with a main station front-end processor through a communication transmission module, and the main station front-end processor is used for presenting temperature information of the cable heads. Due to the ring main unit cable head temperature on-line monitoring device, the temperature of the cable heads in the ring main unit can be accurately measured and monitored online, and a detection error value meets the requirement of a target value.
Description
Technical field
The invention belongs to technical field of electric power, be specifically related to a kind of cable end temperature measuring equipment.
Background technology
Ring main unit: complete collecting and point connection function and possess the special electric connection device of control survey etc. of cable line in distribution system.Cable end: the conductor of stube cable and cable, insulation, screen layer and protective seam, to make cable line continuous print device.
Ring main unit has and collects and tapping cable line function, is the important component part of distribution system.Temperature is the important indicator of reflection ring main unit running status.As the connecting portion of cable and ring main unit, there is contact resistance in cable end, heat accumulation is large, is the parts of easily temperature rise in ring main unit.Therefore the temperature of monitoring cable head, for supervision ring main unit running status, find in advance and hidden danger of fixing a breakdown significant.
Current ring main unit cable end temp measuring method is artificial hand-held infrared imaging device scene thermometric one by one mainly, and thermometric workload is large, and temperature measuring efficiency is low, the abnormal conditions of cable end can not be detected in real time, easily cause power supply trouble.
Summary of the invention
The object of this invention is to provide a kind of ring main unit cable head temperature on-Line Monitor Device and temp measuring method, to solve prior art Problems existing.
The technical solution adopted for the present invention to solve the technical problems is: the concrete structure of ring main unit cable head temperature on-Line Monitor Device is:
At the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module; Ring main unit front panel is installed the 2.4GHz high-performance radio-frequency transceiver with Zigbee wireless transmission function, as wireless transceiver; In ring main unit, arrange single-chip microcomputer as control module, the shell of control module is aluminum alloy material; Control module single-chip microcomputer is connected with DTU by RS485 interface, signal wire, passes through communications module subsequently and is connected with main website front end processor, presented the temperature information of each cable end by main website front end processor.
Wherein communications module adopts fiber-optic communications traffic or GPRS wireless transmission.
DTU is ring main unit data acquisition process unit.
Ring main unit cable head temperature on-line monitoring method comprises the following steps:
A mounting temperature sensor: at the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module, DS18B20 digital temperature sensor after installation, advanced initialization, collect each temperature of popping one's head in mutually, be temporarily deposited with temperature register.
B wireless transmission: install the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function on ring main unit front panel, as wireless transceiver, the data after collection pass to control module single-chip microcomputer.
C control module: the single-chip microcomputer of control module adopts AT89C52 single-chip microcomputer, carries out processing all data of coming through wireless transmission.
D ring main unit data acquisition process: control module be connected with the spare terminal in DTU, temperature signal is reached DTU, temperature signal is converted to light signal by Optical Fiber Transmission by DTU, or signal is sent to main website front end processor by the wireless module passed through.
E master station transmission: the data after DTU process transfer to main website front end processor through communication module, is presented the temperature information of each cable end by main website front end processor.
Good effect of the present invention is adopted to be: ring main unit cable head temperature on-line equipment achieves accurate measurement to ring main unit inner cable head temperature and on-line monitoring, and monitor and feedback value all reaches desired value requirement.This project of this device can reduce the Daily Round Check working strength of operation maintenance personnel, and thermometric staff is reduced to 1 people by 2 people; Minimizing equipment power outage, the security that the equipment that improves runs, reliability, safety benefit is obvious; Improve power supply reliability, promote power supply quality, thus promote company service image, social benefit clearly; Can more directly, more convenient process distribution accident, the reasonably optimizing distribution method of operation, realizes active distribution management pattern, promotes distribution management and control ability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described;
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention adopts GPRS transmission pattern diagram.
1 digital temperature sensor, 2 wireless transceivers, 3 control modules, 4 DTU, 5 communications modules, 6 main website front end processors in figure.
Embodiment
Embodiment 1
In fiber-optic communications traffic mode.
At the inlet wire cable end of ring main unit and the DS18B20 digital temperature sensor 1 of the installation of outlet cable head A, B, C three-phase, as temperature collect module; Ring main unit front panel is installed the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function, as wireless transceiver 2; In ring main unit, arrange AT89C52 single-chip microcomputer as control module 3, wherein the shell of control module is aluminum alloy material; Control module 3 single-chip microcomputer to be connected with DTU4 by RS485 interface, signal wire and to carry out data acquisition process, by communications module 5 ONU optical network unit, signal is converted to light signal subsequently, be connected with main website front end processor 6 by optical fiber, presented the temperature information of each cable end by main website front end processor 6.
Main website front end processor is the display system that electric power system is general.
Ring main unit cable head temperature on-line monitoring method comprises the following steps:
A mounting temperature sensor: at the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module, DS18B20 digital temperature sensor after installation, advanced initialization, collect each temperature of popping one's head in mutually, be temporarily deposited with temperature register.
B wireless transmission: install the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function on ring main unit front panel, as wireless transceiver, the data after collection pass to control module single-chip microcomputer.
C control module: the single-chip microcomputer of control module adopts AT89C52 single-chip microcomputer, carries out processing all data of coming through wireless transmission.
D ring main unit data acquisition process: control module be connected with the spare terminal in DTU, temperature signal is reached DTU, temperature signal is converted to light signal by DTU.
E master station transmission: signal is converted to light signal by communications module ONU optical network unit by the data after DTU process, is connected with main website front end processor by optical fiber, is presented the temperature information of each cable end by main website front end processor.
Main website front end processor is same as the prior art.
Embodiment 2
In wireless communication transmissions mode.
At the inlet wire cable end of ring main unit and the DS18B20 digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module; Ring main unit front panel is installed the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function, as wireless transceiver; In ring main unit, arrange AT89C52 single-chip microcomputer, as control module, the shell of control module is aluminum alloy material; Single-chip microcomputer is connected with DTU by RS485 interface, signal wire, and DTU carries out acquisition process to temperature data, by GPRS wireless module, signal is converted to wireless signal subsequently and is sent to main website front end processor, presented the temperature information of each cable end by main website front end processor.
Main website front end processor is the display system that electric power system is general.
Ring main unit cable head temperature on-line monitoring method comprises the following steps:
A mounting temperature sensor: at the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module, DS18B20 digital temperature sensor after installation, advanced initialization, collect each temperature of popping one's head in mutually, be temporarily deposited with temperature register.
B wireless transmission: install the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function on ring main unit front panel, as wireless transceiver, the data after collection pass to control module single-chip microcomputer.
C control module: the single-chip microcomputer of control module adopts AT89C52 single-chip microcomputer, carries out processing all data of coming through wireless transmission.
D ring main unit data acquisition process: control module is connected with the spare terminal in DTU, temperature signal is reached DTU.
E master station transmission: the data after DTU process send signal to main website front end processor by GPRS wireless module, is presented the temperature information of each cable end by main website front end processor.
Measuring tempeature contrast table
Known by data analysis, error amount is all less than desired value 1 DEG C.Monitoring 15 temperature measurement module temperature values of temperature measuring equipment Absorbable organic halogens, are correctly transferred to main website and correct display by it.
Claims (5)
1. a ring main unit cable head temperature on-Line Monitor Device, is characterized in that: at the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module; Ring main unit front panel is installed the 2.4GHz high-performance radio-frequency transceiver with Zigbee wireless transmission function, as wireless transceiver; Single-chip microcomputer is set in ring main unit as control module; Control module single-chip microcomputer is connected with DTU by RS485 interface, signal wire, passes through communications module subsequently and is connected with main website front end processor, presented the temperature information of each cable end by main website front end processor.
2. ring main unit cable head temperature on-Line Monitor Device according to claim 1, is characterized in that: communications module adopts ONU fiber-optic communications traffic.
3. ring main unit cable head temperature on-Line Monitor Device according to claim 1, is characterized in that: communications module adopts GPRS wireless transmission.
4. ring main unit cable head temperature on-Line Monitor Device according to claim 1, is characterized in that: the shell of control module is aluminum alloy material.
5. a ring main unit cable head temperature on-line monitoring method, is characterized in that: the method comprises:
A mounting temperature sensor: at the inlet wire cable end of ring main unit and the digital temperature sensor of the installation of outlet cable head A, B, C three-phase, as temperature collect module, DS18B20 digital temperature sensor after installation, advanced initialization, collect each temperature of popping one's head in mutually, be temporarily deposited with temperature register;
B wireless transmission: install the 2.4GHz high-performance radio-frequency transceiver CC2530 with Zigbee wireless transmission function on ring main unit front panel, as wireless transceiver, the data after collection pass to control module single-chip microcomputer;
C control module: the single-chip microcomputer of control module adopts AT89C52 single-chip microcomputer, carries out processing all data of coming through wireless transmission;
D ring main unit data acquisition process: control module is connected with the spare terminal in DTU, temperature signal is reached DTU, temperature signal is converted to light signal by Optical Fiber Transmission by DTU, or signal is sent to main website front end processor by the wireless module passed through;
E master station transmission: the data after DTU process transfer to main website front end processor through communication module, is presented the temperature information of each cable end by main website front end processor.
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| CN201410835196.6A CN104483032A (en) | 2014-12-30 | 2014-12-30 | Ring main unit cable head temperature on-line monitoring device and temperature measuring method |
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| CN201410835196.6A CN104483032A (en) | 2014-12-30 | 2014-12-30 | Ring main unit cable head temperature on-line monitoring device and temperature measuring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105698945A (en) * | 2016-04-12 | 2016-06-22 | 中交航局安装工程有限公司 | Wireless temperature measurement system |
| CN106353000A (en) * | 2016-11-17 | 2017-01-25 | 国网湖北省电力公司咸宁供电公司 | Method and device for measuring temperature of 10kV cable connector of distribution automation ring main unit |
| CN108061610A (en) * | 2017-10-30 | 2018-05-22 | 绵阳市锐钛智能科技有限公司 | A kind of RFID passive sensing devices for being used to measure ring main unit end conductor temperature |
| CN108444612A (en) * | 2018-03-14 | 2018-08-24 | 国网吉林省电力有限公司长春供电公司 | A kind of ring main unit elbow-type head temperature online monitoring system and method |
| CN110715744A (en) * | 2019-11-19 | 2020-01-21 | 徐州瓦特电气科技有限公司 | Wireless temperature measuring device for cable of ring main unit |
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| CN105698945A (en) * | 2016-04-12 | 2016-06-22 | 中交航局安装工程有限公司 | Wireless temperature measurement system |
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| CN108061610A (en) * | 2017-10-30 | 2018-05-22 | 绵阳市锐钛智能科技有限公司 | A kind of RFID passive sensing devices for being used to measure ring main unit end conductor temperature |
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| CN108444612A (en) * | 2018-03-14 | 2018-08-24 | 国网吉林省电力有限公司长春供电公司 | A kind of ring main unit elbow-type head temperature online monitoring system and method |
| CN110715744A (en) * | 2019-11-19 | 2020-01-21 | 徐州瓦特电气科技有限公司 | Wireless temperature measuring device for cable of ring main unit |
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