CN203433381U - Passive wireless temperature measurement and control system for high-voltage switch cabinet - Google Patents
Passive wireless temperature measurement and control system for high-voltage switch cabinet Download PDFInfo
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- CN203433381U CN203433381U CN201320458823.XU CN201320458823U CN203433381U CN 203433381 U CN203433381 U CN 203433381U CN 201320458823 U CN201320458823 U CN 201320458823U CN 203433381 U CN203433381 U CN 203433381U
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Abstract
The utility model discloses a passive wireless temperature measurement and control system for a high-voltage switch cabinet, and the system is provided with an SAW sensor which employs the piezoelectric principle. The temperature is represented according to the changes, caused by the changes of the temperatures of a high-voltage switch cabinet contact and a cable connector, of the fluctuating frequency of an acoustic wave of a device surface. Temperature data is transmitted to a background management and monitoring center in real time through a wireless measurement and control host and a temperature measurement and control terminal, thereby achieving the purpose of real-time monitoring. Because the SAW sensor is a passive wireless sensor, a maintenance problem, which is caused by the damage of a cable in wired transmission, is solved. Moreover, because the SAW sensor is a passive wireless sensor, the size is reduced, the detection sensitivity is increased, and there is no condition of power failure, thereby guaranteeing the safety of the high-voltage switch cabinet.
Description
Technical field
The utility model belongs to mechanical & electrical technology field, relates to a kind of temperature control system, is specifically related to a kind of high-tension switch cabinet passive and wireless temperature control system and method.
Background technology
High-voltage switch gear refers to for electric system generating, transmission of electricity, distribution, electric energy conversion and has consumed the effects such as break-make, control or protection; electric pressure is in the electric equipment products of 3.6kV ~ 550kV; mainly comprise primary cut-out, high voltage isolator and grounding switch, high voltage load switch, high pressure automatic reclosing and sectionaliser, several large classes such as high-voltage actuating mechanism, high-voltage explosion-proof power distribution equipment and high-tension switch cabinet.High-voltage switch gear manufacturing industry is the manufacturing important component part of power transmission and transforming equipment, occupies very important status in whole power industry.
High-tension switch cabinet is very important electrical equipment in generating plant and transformer substation system the most, the Mume flower contact of handcart circuit breaker in switch cubicle, the positions such as the dynamic/static contact of disconnector and bus, cable splice for a long time in high voltage, large current work state, these positions will cause that contact or joint temperature raise because of surface oxidation, burn into bolt looseness or the reason such as bad of dispelling the heat.And the lengthening along with the time, its degree of superheat is aggravation constantly, finally will cause intensification place insulation breakdown two that " collapsing burning " accident occurs, the generation of this kind of accident not only can cause large-area power outage, also will produce, and live and bring significant impact to normal simultaneously.In recent years, how the electric power accident causing because of high-tension switch cabinet Overheat Reasons occurs in the whole nation.Therefore, solving switch problems of excessive heat in switch cubicle is to stop the key that this type of accident occurs, and the on-line temperature monitoring of realizing high-tension switch cabinet is the important means that guarantees high-voltage electrical equipment safe operation.
Utility model content
The application's object is for above-mentioned the deficiencies in the prior art, and a kind of high-tension switch cabinet passive and wireless temperature control system is provided, and adopts SAW sensor and radio fest and control main frame etc. to realize the Real-Time Monitoring to contact temperature.
Another object of the application is to provide a kind of high-tension switch cabinet passive and wireless measurement and control of temperature method.
For achieving the above object, the technical scheme that the application takes is: a kind of high-tension switch cabinet passive and wireless temperature control system is provided, it is characterized in that, comprise SAW sensor, radio fest and control main frame, measurement and control of temperature terminal and back-stage management and Surveillance center; Described SAW sensor setting is on high-tension switch cabinet contact; Described radio fest and control main frame is arranged on the inwall of high-tension switch cabinet; Described radio fest and control main frame is connected with measurement and control of temperature terminal; Described measurement and control of temperature terminal is communicated by letter with back-stage management and Surveillance center.
Described SAW sensor is fixed on high-tension switch cabinet contact by screw, bolt or splicing tape.
Described SAW sensor is fixed on high-tension switch cabinet contact by adhesive glue.
Described radio fest and control main frame is connected with measurement and control of temperature terminal by RS485 bus.
Described measurement and control of temperature terminal is realized and communicating by letter with back-stage management and Surveillance center by TCP or IP agreement.
High-tension switch cabinet passive and wireless temperature control system also comprises hand-held communication terminal; Described hand-held communication terminal is communicated by letter with back-stage management and Surveillance center by GPRS.
The SAW(Surface Acoustic Wave adopting) sensor, it is a kind of strain transducer based on surface acoustic wave techniques to show sonic sensor.It can detect EPS and control moment of torsion and the temperature in applying with dynamical system, and the pressure and temperature in TPM system.The feature of SAW sensor: 1. high precision, high sensitivity, measures the measured frequency that converts to, and frequency measurement accuracy is very high, valid analysing range good linearity, antijamming capability is strong, is suitable for long-distance transmissions; 2. digitization frequencies signal is easy to transmission, processes, and has computer interface; 3. make and integrated circuit technique compatibility, easy of integrationization, intellectuality, repeatability and good reliability, be suitable for batch production; 4. volume is little, lightweight, low in energy consumption, can obtain good thermal behavior and mechanical property.
The technical scheme that the application provides, SAW sensor utilizes piezoelectric principle, according to high-tension switch cabinet contact, temperature of cable junction, change the device surface sound wave shock frequency change causing, characterize temperature, and temperature data is real-time transmitted to back-stage management and Surveillance center through radio fest and control main frame, measurement and control of temperature terminal, reach the object of real-time monitoring; Because SAW sensor is passive wireless sensor, avoided because of the damaged maintenance issues bringing of cable in wire transmission; And because passive, not only reduced volume, increased detection sensitivity, and there will not be powering-off state, for the safety of high-tension switch cabinet provides better assurance.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, forms the application's a part, and the application's schematic description and description is used for explaining the application, and forms the improper restriction to the application.In the accompanying drawings:
Fig. 1 schematically shows the high-tension switch cabinet passive and wireless temperature control system structural representation according to an embodiment of the application;
Fig. 2 schematically shows the high-tension switch cabinet passive and wireless temperature control system principle schematic according to an embodiment of the application.
In these accompanying drawings, with identical reference number, represent same or analogous part.
Embodiment
For making the application's object, technical scheme and advantage clearer, below in conjunction with drawings and the specific embodiments, the application is described in further detail.
In the following description, quoting of " embodiment ", " embodiment ", " example ", " example " etc. shown to embodiment or the example so described can comprise special characteristic, structure, characteristic, character, element or limit, but be not that each embodiment or example must comprise special characteristic, structure, characteristic, character, element or limit.In addition, reuse phrase " according to the application embodiment " and, although be likely to refer to identical embodiment, not must refer to identical embodiment.
For the sake of simplicity, omitted in below describing and well known to a person skilled in the art some technical characterictic.
According to the application embodiment, the disclosed high-tension switch cabinet passive and wireless of the application temperature control system, comprises SAW sensor 3, radio fest and control main frame 4, measurement and control of temperature terminal and back-stage management and Surveillance center.
As shown in Figure 1, according to the application embodiment, SAW sensor 3 can be arranged on high-tension switch cabinet contact 2.SAW sensor 3 can utilize piezoelectric principle, according to switch contact, temperature of cable junction, changes the device surface sound wave shock frequency change causing, a kind of piezoelectricity inductive sensory appts to high-tension switch cabinet contact 2 temperature sensings; In addition, SAW sensor 3 can also receive the radio-frequency (RF) pulse signal that reads heat command of radio fest and control main frame 4, reads temperature.
According to another embodiment of the application, SAW sensor 3 is fixed on high-tension switch cabinet contact 2 by screw, bolt or splicing tape.
According to the application's another embodiment, SAW sensor 3 is fixed on high-tension switch cabinet contact 2 by adhesive glue.
As shown in Figure 1, according to the application embodiment, radio fest and control main frame 4 is arranged on the inwall of high-tension switch cabinet 1, as radio fest and control main frame 4 being installed on high-tension switch cabinet instrument 1 table door; Radio fest and control main frame 4 is by the emitting antenna 5 transmitting less radio-frequency pulses with joining, less radio-frequency pulse signal by SAW sensor 3 antenna receptions after, interdigital transducer (IDT) by SAW sensor 3 is at surface wave of surface activation of voltage inductance induction sensor, and surperficial wave frequency, owing to being subject to the impact of sensor detected temperatures, variation has occurred.IDT converts the frequency oscillation of surface wave to radiofrequency signal again; This radiofrequency signal by the antenna reception on collector to after process and read temperature.Due to the be varied to proportionate relationship of the rf frequency variation reflecting with temperature, thereby can draw the temperature value of measured point.The temperature variation that radio fest and control main frame 4 is responsible for that SAW sensor 3 is surveyed receives and data read.
According to another embodiment of the application, the model of this radio fest and control main frame 4 is DE-WK300.
According to the application's another embodiment, each radio fest and control main frame 4 can with at least one SAW sensor 3 communication, as a radio fest and control main frame 4 can with 3 or 6 SAW sensor 3 simultaneous communications.
According to the application's a embodiment again, radio fest and control main frame 4 is connected with measurement and control of temperature terminal by RS485 bus.
According to the application embodiment, measurement and control of temperature terminal can be connected with radio fest and control main frame 4; Measurement and control of temperature terminal has mainly been responsible for information comprehensive management, setting parameter, the data storage of each on-site wireless measurement and control host computer 4; Measurement and control of temperature terminal can also provide the data connecting interface with back-stage management and Surveillance center.
According to another embodiment of the application, the model of this measurement and control of temperature terminal is DE-WKZD400.
According to the application's another embodiment, each measurement and control of temperature terminal can be connected with at least one radio fest and control main frame 4, as a measurement and control of temperature terminal can be connected with 3 or 6 radio fest and control main frames 4.
According to the application embodiment, back-stage management and Surveillance center and measurement and control of temperature terminal communication.Back-stage management and Surveillance center can comprise industrial computer, monitoring software and/or ups power, and back-stage management and Surveillance center can also comprise background printing machine.Back-stage management and Surveillance center obtain the parameter informations such as the collected temperature data of measurement and control of temperature terminal and abnormal alarm for timing cycle.Meanwhile, the data message obtaining is write in local hard disk and makes long preservation.Each power station only need configure a set of back-stage management and Surveillance center, just can complete operations such as the inquiry of each temperature detecting point temperature data in whole power station, statistics, printings.
According to another embodiment of the application, measurement and control of temperature terminal is realized and communicating by letter with back-stage management and Surveillance center by TCP or IP agreement.
According to the application embodiment, high-tension switch cabinet passive and wireless temperature control system also comprises hand-held communication terminal; Hand-held communication terminal is communicated by letter with back-stage management and Surveillance center by GPRS.Hand-held communication terminal can receive the temperature alarming information of back-stage management and Surveillance center's transmission, also can receive high-tension switch cabinet 1 failure message that back-stage management and Surveillance center send.
According to the application embodiment, the application also provides a kind of high-tension switch cabinet passive and wireless measurement and control of temperature method, comprising:
Wireless temperature measurement and control host computer transmitting less radio-frequency pulse signal, to SAW sensor 3, activates SAW sensor 3, collecting temperature data;
SAW sensor 3 gathers the temperature of high-tension switch cabinet contact 2, and the temperature data of collection is sent to radio fest and control main frame 4;
Radio fest and control main frame 4 sends to measurement and control of temperature terminal by the temperature data receiving;
Measurement and control of temperature terminal sends to back-stage management and Surveillance center by the temperature data receiving;
Back-stage management and Surveillance center carry out overall treatment to the temperature data receiving, and show high-tension switch cabinet 1 dut temperature data value and alerting signal by background monitor, for backstage operator on duty provides real time temperature data foundation accurately to the breaking-closing operating of high-tension switch cabinet 1; Whether back-stage management and Surveillance center's detection high-tension switch cabinet 1 check point temperature exceed the safe temperature scope of setting simultaneously; If exceed safe temperature scope, back-stage management and Surveillance center send a warning to hand-held communication terminal; Meanwhile, back-stage management and Surveillance center's control high-tension switch cabinet 1 are cut off the electricity supply.
Above-mentioned safe temperature scope is-50 ~ 150 ℃ (setting as required).
The embodiment that the foregoing is only the application, is not limited to the application, and for a person skilled in the art, the application can have various modifications and variations.All within the application's spirit and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in the application's claim scope.
Claims (6)
1. a high-tension switch cabinet passive and wireless temperature control system, is characterized in that, comprises SAW sensor, radio fest and control main frame, measurement and control of temperature terminal and back-stage management and Surveillance center; Described SAW sensor setting is on high-tension switch cabinet contact; Described radio fest and control main frame is arranged on the inwall of high-tension switch cabinet; Described radio fest and control main frame is connected with measurement and control of temperature terminal; Described measurement and control of temperature terminal is communicated by letter with back-stage management and Surveillance center.
2. high-tension switch cabinet passive and wireless temperature control system according to claim 1, is characterized in that, described SAW sensor is fixed on high-tension switch cabinet contact by screw, bolt or splicing tape.
3. high-tension switch cabinet passive and wireless temperature control system according to claim 1, is characterized in that, described SAW sensor is fixed on high-tension switch cabinet contact by adhesive glue.
4. high-tension switch cabinet passive and wireless temperature control system according to claim 1, is characterized in that, described radio fest and control main frame is connected with measurement and control of temperature terminal by RS485 bus.
5. high-tension switch cabinet passive and wireless temperature control system according to claim 1, is characterized in that, described measurement and control of temperature terminal is realized and communicating by letter with back-stage management and Surveillance center by TCP or IP agreement.
6. high-tension switch cabinet passive and wireless temperature control system according to claim 1, is characterized in that, also comprises hand-held communication terminal; Described hand-held communication terminal is communicated by letter with back-stage management and Surveillance center by GPRS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458823.XU CN203433381U (en) | 2013-07-30 | 2013-07-30 | Passive wireless temperature measurement and control system for high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458823.XU CN203433381U (en) | 2013-07-30 | 2013-07-30 | Passive wireless temperature measurement and control system for high-voltage switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN203433381U true CN203433381U (en) | 2014-02-12 |
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| CN201320458823.XU Expired - Fee Related CN203433381U (en) | 2013-07-30 | 2013-07-30 | Passive wireless temperature measurement and control system for high-voltage switch cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399593A (en) * | 2013-07-30 | 2013-11-20 | 四川大尔电气有限责任公司 | System and method for inactive and wireless temperature measuring and control of high-voltage switch cabinet |
| CN105761446A (en) * | 2016-05-12 | 2016-07-13 | 平玉兰 | Intelligent gas leakage monitoring system based on wireless passive detection technology |
-
2013
- 2013-07-30 CN CN201320458823.XU patent/CN203433381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399593A (en) * | 2013-07-30 | 2013-11-20 | 四川大尔电气有限责任公司 | System and method for inactive and wireless temperature measuring and control of high-voltage switch cabinet |
| CN105761446A (en) * | 2016-05-12 | 2016-07-13 | 平玉兰 | Intelligent gas leakage monitoring system based on wireless passive detection technology |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20210730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |