CN203798466U - Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet - Google Patents
Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet Download PDFInfo
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- CN203798466U CN203798466U CN201420202596.9U CN201420202596U CN203798466U CN 203798466 U CN203798466 U CN 203798466U CN 201420202596 U CN201420202596 U CN 201420202596U CN 203798466 U CN203798466 U CN 203798466U
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- switch cabinet
- saw
- frequency signal
- temperature sensor
- radiofrequency signal
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- 238000010897 surface acoustic wave method Methods 0.000 title claims abstract description 31
- 239000004020 conductor Substances 0.000 title abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 238000009529 body temperature measurement Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000005672 electromagnetic field Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to an operating temperature measuring device based on surface acoustic wave for a conductor connection point in a switch cabinet. The technical feature is that the operating temperature measuring device comprises an SAW temperature sensor mounted on a conductor connection point in a switch cabinet and a temperature acquisition processing device mounted outside the switch cabinet, wherein the SAW temperature sensor is connected with the temperature acquisition processing device through a wireless radio frequency manner. According to the operating temperature measuring device, the SAW temperature sensor is mounted on the conductor connector of the switch cabinet, signal transmission and high-voltage isolation are carried out by adopting the surface acoustic wave (SAW) sensing technology and the wireless communication technology, the intrinsic insulativity and electromagnetic field interference resisting performance are utilized, the difficulty that the temperature of the conductor connection point in the switch cabinet is not easy to monitor is solved fundamentally, the measuring precision and measuring efficiency are improved, the equipment maintenance frequency is reduced, and the installation and maintenance costs are decreased.
Description
Technical field
The utility model belongs to power switch cabinet technical field, especially a kind of switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave.
Background technology
In the operational process of power switch cabinet, often there will be because the loose contact of inside switch cabinet conductor tab causes overheated phenomenon.If find in time to connect conductor tab heating situation, can effectively avoid having an accident, the stable operation of support equipment.The temp measuring method of existing inside switch cabinet mainly adopts the method for built-in wired temp probe to realize, this method is invested greatly and need to be on local installation procedure backstage, and testing efficiency is low, test environment is had relatively high expectations, simultaneously, because power switch cabinet body is made up of shielding material, therefore, cannot utilize infrared measurement of temperature method to carry out thermometric.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and tests accurately, efficiency is high and the switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave that is easy to install and use.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave, comprise the SAW temperature sensor being arranged on switch cubicle inner wire tie point and be arranged on the temperature acquisition treating apparatus outside switch cubicle, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode.
And, described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, the radiofrequency signal of the radiofrequency signal of described transmit-receive switch to SAW temperature sensor and radio frequency signal amplifiers output exports in amplifier after processing, the radiofrequency signal that this amplifier output is amplified is to detuner, the radiofrequency signal that the radiofrequency signal of this detuner to amplifier and radio-frequency signal generator produce carries out being transferred to master controller after demodulation process, master controller shows and stores processor the temperature data receiving.
Advantage of the present utility model and good effect are:
1, this measurement mechanism adopts surface acoustic wave (SAW) sensing technology and wireless communication technique to carry out signal transmission and high pressure isolation, utilize its intrinsic insulativity and anti-electromagnetic field jamming performance, fundamentally solve high-tension switch cabinet inner wire tie point running temperature and be difficult for a difficult problem of monitoring, improved measuring accuracy and measured efficiency.
2, this measurement mechanism is arranged on SAW temperature sensor in switch cubicle conductor tab, isolates with inside switch cabinet conductor high-pressure section, guarantees thermometric work safety and reliability.
3, the SAW SAW Temperature Sensors of this measurement mechanism is passive, wireless device, is convenient to I&M, has reduced maintenance of equipment number of times, has reduced I&M cost.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A kind of switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave, as shown in Figure 1, comprise the SAW temperature sensor being arranged on switch cubicle inner wire tie point and be arranged on the temperature acquisition treating apparatus outside switch cubicle, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode and carries out data transmission.Described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, described master controller is connected with transceiver controller, this transceiver controller is connected with transmit-receive switch, and master controller carries out work by transceiver controller control transmit-receive switch and receives the temperature data that SAW temperature sensor gathers.Described radio-frequency signal generator produces radiofrequency signal and is connected with detuner with radio frequency signal amplifiers respectively, described radio frequency signal amplifiers is connected and provides radio-frequency signal source for it with transmit-receive switch, the radiofrequency signal of the radiofrequency signal of described transmit-receive switch to SAW temperature sensor and radio frequency signal amplifiers output exports in amplifier after processing, this amplifier amplifies and processes and export the radiofrequency signal after amplifying to detuner the radiofrequency signal receiving, the radiofrequency signal that the radiofrequency signal of this detuner to amplifier and radio-frequency signal generator produce carries out being transferred to master controller after demodulation process, by master controller, the temperature data receiving is shown and the processing such as storage, thereby realize the temperature measurement function to switch cubicle inner wire tie point.
Principle of work of the present utility model: SAW temperature sensor is passive type induction mode, without battery-operated, SAW temperature sensor can arrive emission of radio frequency signals the surface of piezoelectric, then the reflection wave that is subject to temperature and has affected is gone back to electric signal again and obtains temperature data, SAW temperature sensor is transferred to temperature acquisition treating apparatus by the temperature data of collection by RF-wise, thereby has realized the temperature measurement function to switch cubicle inner wire tie point.The utility model adopts surface acoustic wave techniques, takes full advantage of the passive principle of work of sensor, and under unconventional running environment, (high voltage, high electric current) realizes wireless temperature data acquisition function.
It is emphasized that; embodiment described in the utility model is illustrative; instead of determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other embodiments that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (2)
1. the switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave, it is characterized in that: comprise the SAW temperature sensor being arranged on switch cubicle inner wire tie point and be arranged on the temperature acquisition treating apparatus outside switch cubicle, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode.
2. the switch cubicle inner wire tie point running temperature measurement mechanism based on surface acoustic wave according to claim 1, it is characterized in that: described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, the radiofrequency signal of the radiofrequency signal of described transmit-receive switch to SAW temperature sensor and radio frequency signal amplifiers output exports in amplifier after processing, the radiofrequency signal that this amplifier output is amplified is to detuner, the radiofrequency signal that the radiofrequency signal of this detuner to amplifier and radio-frequency signal generator produce carries out being transferred to master controller after demodulation process, master controller shows and stores processor the temperature data receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202596.9U CN203798466U (en) | 2014-04-24 | 2014-04-24 | Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202596.9U CN203798466U (en) | 2014-04-24 | 2014-04-24 | Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798466U true CN203798466U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202596.9U Expired - Lifetime CN203798466U (en) | 2014-04-24 | 2014-04-24 | Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798466U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296890A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Passive wireless temperature detecting terminal based on sound surface wave property |
| CN105043584A (en) * | 2015-07-10 | 2015-11-11 | 北京中讯四方科技股份有限公司 | Wireless temperature measurement system |
| CN107003185A (en) * | 2014-12-09 | 2017-08-01 | 阿尔斯通技术有限公司 | The temperature survey of switchgear stations |
| CN107941369A (en) * | 2017-11-24 | 2018-04-20 | 广东电网有限责任公司东莞供电局 | A kind of switchgear multiple spot based on surface acoustic wave, low crosstalk temperature measuring equipment |
-
2014
- 2014-04-24 CN CN201420202596.9U patent/CN203798466U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296890A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Passive wireless temperature detecting terminal based on sound surface wave property |
| CN107003185A (en) * | 2014-12-09 | 2017-08-01 | 阿尔斯通技术有限公司 | The temperature survey of switchgear stations |
| CN105043584A (en) * | 2015-07-10 | 2015-11-11 | 北京中讯四方科技股份有限公司 | Wireless temperature measurement system |
| CN107941369A (en) * | 2017-11-24 | 2018-04-20 | 广东电网有限责任公司东莞供电局 | A kind of switchgear multiple spot based on surface acoustic wave, low crosstalk temperature measuring equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |