CN104900041A - Method and system for wireless temperature monitoring of substation equipment - Google Patents
Method and system for wireless temperature monitoring of substation equipment Download PDFInfo
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- CN104900041A CN104900041A CN201510367125.2A CN201510367125A CN104900041A CN 104900041 A CN104900041 A CN 104900041A CN 201510367125 A CN201510367125 A CN 201510367125A CN 104900041 A CN104900041 A CN 104900041A
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Abstract
The invention relates to wireless monitoring technologies, in particular to wireless temperature monitoring of substation equipment, provides a method for wireless temperature monitoring of the substation equipment and aims to solve the problem that temperature monitoring of existing substation equipment can only be realized in a wired manner by manual attendance. The method includes the steps: firstly, mounting a temperature sensor on substation equipment requiring temperature monitoring; secondly, enabling the temperature sensor for acquiring the temperature of the corresponding equipment, processing acquired temperature information by a first single-chip microcomputer processing system, and transmitting the processed temperature information through a wireless transmission circuit; finally, enabling a wireless receiving circuit to receive the processed temperature information transmitted by the wireless transmission circuit, re-processing the processed temperature information through a second single-chip microcomputer processing system, and transmitting to a display module for displaying correspondingly. The invention further provides a system for wireless temperature monitoring of the substation equipment, and the system is applicable to temperature monitoring of the substation equipment.
Description
Technical field
The present invention relates to wireless monitor technology, particularly a kind of substation equipment temperature wireless monitoring system.
Background technology
The equipment that the high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation line joint, outdoor chopper switch etc. of transformer station are important, in During Process of Long-term Operation easily because of insulation ag(e)ing or contact resistance excessive and generate heat, thus cause fire and large-area power outage, cause great economic loss and serious social influence.Therefore it is very necessary for carrying out temperature Real-Time Monitoring to substation equipment.
It is several that substation equipment temperature detection mode is roughly divided into artificial point-to-point measurement, infrared thermography, wired on-line checkingi and wireless automatic detection etc.Current domestic medium and small sized substation is generally use infrared thermometer to carry out artificial pointwise thermometric, and the relatively large transformer station that partial condition allows then adopts distribution type fiber-optic or thermal infrared imager thermometric.External integrated automation of transformation stations level leads over China, and precision and the reliability of the wired on-line checkingi of equipment are higher, but do not surmount the category of wired thermometric yet.The maximum advantage of wireless temperature measurement is without the need to considering that wiring problem is not only reduced expenses, installation and maintenance simple, reducing the space hold of transformer station, and avoids the injury of staff for a long time suffered by transformer station's strong electromagnetic environment lower body.Wireless online monitoring can be applicable to the monitoring temperature under integrated automation of transformation stations unmanned, and its distinctive advantage imply that its following wide development is empty.The temperature often measuring each parts of power equipment is needed in electric device maintenance, for these easy heating positions of substation equipment, if do not take reliable monitoring means, easily cause temperature rise aggravation, apparatus overheat thus burn primary equipment, cause power failure or serious accident, economic loss is serious therefore, carries out on-line temperature monitoring have important practical significance to substation equipment.Substation equipment wireless monitor technology integrates microelectric technique, wireless communication technology, sensor technology, battery technology, electromagnetic compatibility technology.Along with the further breakthrough of low-power consumption and Anti-Jamming Technique, wireless monitor technology will highlight more relative to the various advantages of traditional electrical substation monitoring pattern, and the application of short-distance wireless communication technology in the electric system such as transformer station can constantly get the nod and popularize.
Summary of the invention
The object of the invention is wired mode can only be relied on to pass through manually problem of carrying out on duty in order to solve existing substation equipment temperature monitoring.
For achieving the above object, the invention provides a kind of substation equipment temperature wireless monitoring method, step is as follows:
A. mounting temperature sensor on the equipment needing to carry out monitoring temperature in transformer station, the described equipment carrying out temperature monitoring that needs comprises high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch, the corresponding equipment of each temperature sensor;
B. the temperature of temperature sensor to corresponding device gathers, and is launched by radio transmitter after being processed by the first scm managing system by the temperature information of collection;
C. wireless receiving circuit receive radio transmitter launch treated temperature information, and be transferred to after the temperature information of described process is processed again by second singlechip disposal system display module carry out correspondence show.
Particularly, also host computer is provided with between display module and second singlechip disposal system, described host computer is used for storage and the inquiry of temperature data, the temperature data collected and the safe temperature range preset are contrasted simultaneously, when the temperature data collected is outside the safe temperature range set, send alerting signal.
A kind of preferred scheme is, described first scm managing system and second singlechip disposal system adopt MSP430F149 single-chip microcomputer, described temperature sensor is DS18B20 temperature sensor, described display module is LCD1602 liquid crystal display, and described radio transmitter and wireless receiving circuit adopt nRF24L01 chip.
Particularly, the temperature detection range of described temperature sensor is that-55 degree are to 125 degree.
Particularly, in steps A, after equipment installs, initialization need be carried out to the timer of the clock of MSP430F149 single-chip microcomputer, MSP430F149 single-chip microcomputer, the nRF24L01 chip of radio transmitter, the nRF24L01 chip of wireless receiving circuit and DS18B20 temperature sensor successively.
Particularly, the initialize flow of the nRF24L01 chip of described radio transmitter is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. after nRF24L01 chip transmission of data, judge that the whether generation of nRF24L01 chip is interrupted, if do not produce interruption, then repeat to judge, interrupt if produce, enter step C;
C. judge whether interrupt source is send successfully to interrupt, if then enter step B, then sends error handling information if not;
The initialization procedure of the nRF24L01 chip of described wireless receiving circuit is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. judge whether nRF24L01 chip produces receive interruption, then repeat this judgement if not, if so, then enter step C;
C. receive data from nRF24L01 chip, and received data are sent by UART/USB port.
Corresponding said method, the present invention also provides a kind of substation equipment temperature wireless monitoring system, comprise temperature sensor, described temperature sensor is arranged on the substation equipment that needs to carry out temperature monitoring, also comprise the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module, described temperature sensor, the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module connect successively.
Described temperature sensor for detecting the temperature with its corresponding device, the corresponding temperature sensor of each equipment; The temperature that described first scm managing system is used for temperature sensor detects processes, and itself and equipment is carried out associating corresponding;
Described radio transmitter is used for wireless signal transmission, and wireless receiving circuit is used for reception of wireless signals; The data that described second singlechip disposal system is used for receiving carry out the reverse process corresponding with the first scm managing system; Display module is used for showing the data after the process of second singlechip disposal system.
Particularly, also host computer is provided with between display module and second singlechip disposal system, described host computer is used for storage and the inquiry of temperature data, the temperature data collected and the safe temperature range preset are contrasted simultaneously, when the temperature data collected is outside the safe temperature range set, send alerting signal.Therefore, host computer or should have alarm to be connected with host computer with alarm.
Preferably, described first scm managing system and second singlechip disposal system adopt MSP430F149 single-chip microcomputer, described temperature sensor is DS18B20 temperature sensor, described display module is LCD1602 liquid crystal display, and described radio transmitter and wireless receiving circuit adopt nRF24L01 chip.
Particularly, the described substation equipment carrying out temperature monitoring that needs comprises high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch.
The invention has the beneficial effects as follows: the present invention for master chip, realizes the hard ware & soft ware design of temperature data acquisition node and Centroid with MSP430F149 and nRF24L01, and the design of host computer monitoring of software.Use DS18B20 temperature sensor to carry out the collection of data, MSP430F149 processes the temperature collected, and then by wireless sending module Nrf2401, temperature data is sent to receiving end.Receiving end adopts and also adopts MSP430F149 to be core, thus ensures the accurate of data.Realized the display of data by LCD1602 liquid crystal display, thus realize the radio detection to temperature.Temperature data acquisition node is made up of microprocessor unit, wireless communication unit, temperature collecting cell and power supply unit; Centroid is made up of microprocessor unit, wireless communication unit, serial communication unit, storage unit and power supply unit.Temperature data acquisition node just starts collecting device temperature powering on successfully, wirelessly the temperature data collected is sent to Centroid.Each node temperature data analysis process that Centroid will collect, waits for and responds the communications command of host computer.Monitoring computer software is developed by visual c++ 6.0, realizes the management to system and analysis, provides the functions such as optimum configurations, warning, display, printing.
Embodiment below in conjunction with real embodiment is further described technical scheme of the present invention; should be noted that; embodiment is only used to help reader to understand technical conceive of the present invention better, not in order to limit the protection domain of the claims in the present invention.
Embodiment
The invention provides a kind of system wirelessly realizing that substation equipment temperature is monitored, this system comprises temperature sensor, described temperature sensor is arranged on the substation equipment that needs to carry out temperature monitoring, also comprise the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module, described temperature sensor, the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module connect successively; Described temperature sensor for detecting the temperature with its corresponding device, the corresponding temperature sensor of each equipment; The temperature that described first scm managing system is used for temperature sensor detects processes, and itself and equipment is carried out associating corresponding; Described radio transmitter is used for wireless signal transmission, and wireless receiving circuit is used for reception of wireless signals; The data that described second singlechip disposal system is used for receiving carry out the reverse process corresponding with the first scm managing system; Display module is used for showing the data after the process of second singlechip disposal system.
Corresponding to above-mentioned system, the present invention also provides a kind of substation equipment temperature wireless monitoring method, the method step is as follows: first, mounting temperature sensor on the equipment needing to carry out monitoring temperature in transformer station, the described equipment carrying out temperature monitoring that needs comprises high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch, the corresponding equipment of each temperature sensor.Then, the temperature of temperature sensor to corresponding device gathers, and is launched by radio transmitter after being processed by the first scm managing system by the temperature information of collection.Finally, wireless receiving circuit receive radio transmitter launch treated temperature information, and be transferred to after the temperature information of described process is processed again by second singlechip disposal system display module carry out correspondence show.
Embodiment
Below to formation and method of work work one detailed description thereof of substation equipment temperature wireless detection system of the present invention.
First scm managing system of the present invention and second singlechip disposal system adopt MSP430F149 single-chip microcomputer, temperature sensor is DS18B20 temperature sensor, display module is LCD1602 liquid crystal display, and radio transmitter and wireless receiving circuit adopt nRF24L01 chip.DS18B20 is a kind of modified intelligent temperature sensor of DALLAS semiconductor company of the U.S. up-to-date release after DS1820.Its profile is identical with common triode, and have volume little, hardware spending is low, and antijamming capability is strong, the feature that precision is high.Compared with traditional thermistor, it directly can read dut temperature and according to the digital value reading mode of actual requirement by simple programming realization 9 ~ 12.DS18B20 adopts unique one-wire interface DQ, and information is sent into DS18B20 through one-wire interface DQ or sent from DS18B20, therefore only needs connection line can communicate with ground from central processing unit (CPU) to DS18B20.Circuit is simple, does not need outer member.There is provided 9 temperature readings, measurement range is from-55 DEG C to+125 DEG C, and increment size is 0.5 DEG C.In 1s, (representative value) becomes data temperature transition, can arrange the functions such as auto-alarming.Temperature sensor is arranged on the equipment that needs to carry out temperature monitoring, such as high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch, the corresponding equipment of each temperature sensor.
After equipment installs, initialization need be carried out to the timer of the clock of MSP430F149 single-chip microcomputer, MSP430F149 single-chip microcomputer, the nRF24L01 chip of radio transmitter, the nRF24L01 chip of wireless receiving circuit and DS18B20 temperature sensor successively.The initialize flow of the nRF24L01 chip of radio transmitter is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. after nRF24L01 chip transmission of data, judge that the whether generation of nRF24L01 chip is interrupted, if do not produce interruption, then repeat to judge, interrupt if produce, enter step C;
C. judge whether interrupt source is send successfully to interrupt, if then enter step B, then sends error handling information if not;
The initialization procedure of the nRF24L01 chip of described wireless receiving circuit is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. judge whether nRF24L01 chip produces receive interruption, then repeat this judgement if not, if so, then enter step C;
C. receive data from nRF24L01 chip, and received data are sent by UART/USB port.
The temperature of temperature sensor to corresponding device gathers, and launched by radio transmitter after the temperature information of collection is processed by the first scm managing system, wireless receiving circuit receive radio transmitter launch treated temperature information, and be transferred to after the temperature information of described process is processed again by second singlechip disposal system display module carry out correspondence show.Also host computer is provided with between display module and second singlechip disposal system, described host computer is used for storage and the inquiry of temperature data, the temperature data collected and the safe temperature range preset are contrasted simultaneously, when the temperature data collected is outside the safe temperature range set, send alerting signal.
Claims (10)
1. substation equipment temperature wireless monitoring method, is characterized in that, step is as follows:
A. mounting temperature sensor on the equipment needing to carry out monitoring temperature in transformer station, the described equipment carrying out temperature monitoring that needs comprises high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch, the corresponding equipment of each temperature sensor;
B. the temperature of temperature sensor to corresponding device gathers, and is launched by radio transmitter after being processed by the first scm managing system by the temperature information of collection;
C. wireless receiving circuit receive radio transmitter launch treated temperature information, and be transferred to after the temperature information of described process is processed again by second singlechip disposal system display module carry out correspondence show.
2. substation equipment temperature wireless monitoring method as claimed in claim 1, it is characterized in that, also host computer is provided with between display module and second singlechip disposal system, described host computer is used for storage and the inquiry of temperature data, the temperature data collected and the safe temperature range preset are contrasted simultaneously, when the temperature data collected is outside the safe temperature range set, send alerting signal.
3. substation equipment temperature wireless monitoring method as claimed in claim 1 or 2, it is characterized in that, described first scm managing system and second singlechip disposal system adopt MSP430F149 single-chip microcomputer, described temperature sensor is DS18B20 temperature sensor, described display module is LCD1602 liquid crystal display, and described radio transmitter and wireless receiving circuit adopt nRF24L01 chip.
4. substation equipment temperature wireless monitoring method as claimed in claim 3, is characterized in that, the temperature detection range of described temperature sensor is that-55 degree are to 125 degree.
5. substation equipment temperature wireless monitoring method as claimed in claim 3, it is characterized in that, in steps A, after equipment installs, initialization need be carried out to the timer of the clock of MSP430F149 single-chip microcomputer, MSP430F149 single-chip microcomputer, the nRF24L01 chip of radio transmitter, the nRF24L01 chip of wireless receiving circuit and DS18B20 temperature sensor successively.
6. substation equipment temperature wireless monitoring method as claimed in claim 5, it is characterized in that, the initialize flow of the nRF24L01 chip of described radio transmitter is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. after nRF24L01 chip transmission of data, judge that the whether generation of nRF24L01 chip is interrupted, if do not produce interruption, then repeat to judge, interrupt if produce, enter step C;
C. judge whether interrupt source is send successfully to interrupt, if then enter step B, then sends error handling information if not;
The initialization procedure of the nRF24L01 chip of described wireless receiving circuit is as follows:
A. I/O interface and the register address of nRF24L01 chip is configured;
B. judge whether nRF24L01 chip produces receive interruption, then repeat this judgement if not, if so, then enter step C;
C. receive data from nRF24L01 chip, and received data are sent by UART/USB port.
7. substation equipment temperature wireless monitoring system, it is characterized in that, comprise temperature sensor, described temperature sensor is arranged on the substation equipment that needs to carry out temperature monitoring, also comprise the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module, described temperature sensor, the first scm managing system, radio transmitter, wireless receiving circuit, second singlechip disposal system and display module connect successively;
Described temperature sensor for detecting the temperature with its corresponding device, the corresponding temperature sensor of each equipment; Described first
The temperature that scm managing system is used for temperature sensor detects processes, and itself and equipment is carried out associating corresponding;
Described radio transmitter is used for wireless signal transmission, and wireless receiving circuit is used for reception of wireless signals; The data that described second singlechip disposal system is used for receiving carry out the reverse process corresponding with the first scm managing system; Display module is used for showing the data after the process of second singlechip disposal system.
8. substation equipment temperature wireless monitoring system as claimed in claim 7, it is characterized in that, also host computer is provided with between display module and second singlechip disposal system, described host computer is used for storage and the inquiry of temperature data, the temperature data collected and the safe temperature range preset are contrasted simultaneously, when the temperature data collected is outside the safe temperature range set, send alerting signal.
9. substation equipment temperature wireless monitoring system as claimed in claim 7 or 8, it is characterized in that, described first scm managing system and second singlechip disposal system adopt MSP430F149 single-chip microcomputer, described temperature sensor is DS18B20 temperature sensor, described display module is LCD1602 liquid crystal display, and described radio transmitter and wireless receiving circuit adopt nRF24L01 chip.
10. substation equipment temperature wireless monitoring system as claimed in claim 9, it is characterized in that, the described substation equipment carrying out temperature monitoring that needs comprises high-tension switch cabinet, busbar joint, cable splice, power transmission and transformation wire terminal and outdoor chopper switch.
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| CN201510367125.2A CN104900041A (en) | 2015-06-29 | 2015-06-29 | Method and system for wireless temperature monitoring of substation equipment |
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| CN201510367125.2A CN104900041A (en) | 2015-06-29 | 2015-06-29 | Method and system for wireless temperature monitoring of substation equipment |
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Cited By (2)
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| 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 |
| CN109506798A (en) * | 2019-01-21 | 2019-03-22 | 赵玉才 | A kind of contact temperature of high-voltage switch cabinet monitoring system |
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