CN203672515U - Passive wireless type on-line temperature measurement system - Google Patents

Passive wireless type on-line temperature measurement system Download PDF

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Publication number
CN203672515U
CN203672515U CN201420029387.9U CN201420029387U CN203672515U CN 203672515 U CN203672515 U CN 203672515U CN 201420029387 U CN201420029387 U CN 201420029387U CN 203672515 U CN203672515 U CN 203672515U
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China
Prior art keywords
temperature
passive
wireless
surface wave
measure system
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Expired - Lifetime
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CN201420029387.9U
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Chinese (zh)
Inventor
许文才
李新海
曾新雄
林蔚
刘建军
刘成
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Zhuhai Saidisheng Electric Equipment Co ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Zhuhai Saidisheng Electric Equipment Co ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Abstract

The utility model discloses a passive wireless type on-line temperature measurement system which has the advantages of quite high efficiency, quite low cost, long life, good insulation, timely and accurate measurement, and elimination of regular inspection of working personnel. The system comprises a plurality of passive sound surface wave sensors (1), a temperature acquisition transceiver (2), a local temperature management terminal (3) and a remote management main station (4). The plurality of passive sound surface wave sensors (1) are respectively fixedly arranged at a plurality of measured points of a switch cabinet and are in wireless communication connection with the temperature acquisition transceiver (2); the local temperature management terminal (3) is in wireless communication connection with the temperature acquisition transceiver (2); and the local temperature management terminal (3) is also in communication connection with the remote management main station (4). The system provided by the utility model can be applied to the field of a switch cabinet temperature control technology.

Description

Passive and wireless formula In-Line Temperature Measure System
Technical field
The utility model relates to a kind of In-Line Temperature Measure System that can be applicable to switch cubicle temperature control technology field, particularly a kind of passive and wireless formula In-Line Temperature Measure System for 10KV switch cabinet temperature parameter real time monitoring.
Background technology
The cable copper bar lap-joint of 10kV switch cubicle, contact of breaker contact site, disconnecting link contact contact site, cable end connecting portion etc. are in During Process of Long-term Operation; due to reasons such as surface oxidation burn into fastening bolt become flexible; often can cause contact resistance to increase and then cause the phenomenons such as contact site heating and galvanic corrosion; even can scorification link when serious and cause short trouble; reduce system power supply reliability, finally cause heavy economic losses.
In prior art, the heat in switch cubicle being monitored to the technological means adopting comprises: paste the warm wax supervision of examination, occasionally Thermistor Temperature Measurement, optical fiber temperature-measurement, hand-held infrared measurement of temperature, active probe wireless temperature measurement etc. of conventional thermoelectricity, above-mentioned technological means still exists more technological deficiency:
Paste the warm wax of examination and monitor it is the technological means that a kind of efficiency is low and cost is high, try warm wax and not only can not reflect current and historical accurate temperature value, but also need the artificial periodical inspection of work, workload is larger.
Occasionally Thermistor Temperature Measurement simple in structure of thermoelectricity, thermometry maturation, but because need adopt plain conductor signal transmission, therefore insulativity is poor, easily cause potential safety hazard.
Optical fiber temperature-measurement is mainly that detecting optical cable is laid on equipment to be measured, and light, after amplifying, passes to heat-sensitive material part by optical fiber, is then reflected back a pulsed optical signals corresponding with self temperature; Signal can be tried to achieve real time temperature through processing.But optical fiber is more crisp, easily fracture, and may be polluted for the optical fiber surface of high pressure isolation, will cause optical fiber creeping discharge phenomenon, be commonly called as " creepage ", and then the application of optical fiber temperature-measurement in 10KV high-tension switch cabinet is restricted.
Infrared measurement of temperature adopts and receives the far infrared wave that gives off of measured point, by judging that the wavelength of infrared waves determines measurement point temperature.But the measurement point temperature of infrared measurement of temperature within the scope of can only survey sensor direct-view, and see through view window detected temperatures and be vulnerable to the interference of environment and peripheral electromagnetic field.In addition, infrared temperature probe is expensive, does not meet economic and practical principle.
Active radio thermometric adopts the mode of SIC (semiconductor integrated circuit) and radio circuit combination, can accurately reflect the temperature of point for measuring temperature.But it adopts powered battery, battery is stood high temperature for a long time, and its life-span can large high attenuation, needs to have a power failure to safeguard after damage; Integrated circuit is vulnerable to the interference of forceful electric power factory, high-intensity magnetic field, and has the high phenomenon of potential operation and maintenance cost.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides that a kind of efficiency is higher, cost is lower, the life-span is permanent, insulation is good, measures promptly and accurately and passive and wireless formula In-Line Temperature Measure System that need not staff's timed patrol.
The technical scheme that the utility model adopts is: the utility model comprises some passive sonic surface wave sensors, temperature acquisition transceiver, local temperature treatment terminal and telemanagement main website, some described passive sonic surface wave sensors are fixedly installed on respectively on some measured points of switch cubicle and are connected with the wireless telecommunications of described temperature acquisition transceiver, described local temperature treatment terminal is connected with the wireless telecommunications of described temperature acquisition transceiver, and described local temperature treatment terminal is also connected with telemanagement main website communication.
Further, described passive and wireless formula In-Line Temperature Measure System also comprises and being arranged between described local temperature treatment terminal and described temperature acquisition transceiver for amplifying the wireless network repeater of wireless network signal.
Further, described passive sonic surface wave sensor is cut lithium niobate quartz crystal as substrate and is provided with interdigital transducer and dual-mode antenna thereon taking YZ, is also provided with the reflecting grating of some row close-packed arrays codings on described quartz crystal.
Further, described temperature acquisition transceiver comprises digital signal processor, multi-channel high frequency radio circuit and some goat horn type aerials.
Further, the quantity of the described passive sonic surface wave sensor in each switch cubicle is at least 6, and is divided into the different chamber of switch cubicle, and the quantity Matching of the quantity of described goat horn type aerial and switch cubicle chamber, gathers targetedly and receive.
The beneficial effects of the utility model are: because the utility model comprises some passive sonic surface wave sensors, temperature acquisition transceiver, local temperature treatment terminal and telemanagement main website, some described passive sonic surface wave sensors are fixedly installed on respectively on some measured points of switch cubicle and are connected with the wireless telecommunications of described temperature acquisition transceiver, described local temperature treatment terminal is connected with the wireless telecommunications of described temperature acquisition transceiver, described local temperature treatment terminal is also connected with telemanagement main website communication, so the utility model has been abandoned traditional temperature measurement on-line mode, really realize passive and wireless temperature measurement on-line technology by passive surface acoustic wave sensor and peripheral equipment, and the utility model temperature measuring efficiency is higher, lay cost lower, long perfomance life, insulating property are good, measure promptly and accurately and need not personnel's timed patrol, greatly reduce potential operation and maintenance cost.
Further, because also comprising, the utility model is arranged between described local temperature treatment terminal and described temperature acquisition transceiver for amplifying the wireless network repeater of wireless network signal, so the utility model is in the transmission of wireless signal and receive the extremely stable of performance.
Further, because the quantity of the described passive sonic surface wave sensor in each switch cubicle is at least 6, and be divided into the different chamber of switch cubicle, the quantity Matching of the quantity of described goat horn type aerial and switch cubicle chamber, so the utility model not only can gather targetedly and receive each chamber in switch cubicle, but also can between anti-stop signal, disturb.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the principle schematic of passive sonic surface wave sensor and the communication of temperature acquisition transceiver in the utility model.
Embodiment
As shown in Figure 1-2, the utility model comprises by high speed digital signal processor and multi-channel high frequency radio circuit and the some groups of temperature acquisition transceivers 2 that goat horn type aerial is made, use YZ cut lithium niobate quartz crystal for substrate and be provided with some passive sonic surface wave sensors 1 of interdigital transducer and dual-mode antenna thereon, by the wireless network repeater (thering is RS485 function) that has independent current source 2.4G zigbee radio circuit and form, local temperature treatment terminal 3 and telemanagement main website 4, on described quartz crystal, be also provided with the reflecting grating of some row close-packed arrays codings, some described passive sonic surface wave sensors 1 pass through silica gel, band, the modes such as screw fastening are positioned on the point to be measured in switch cubicle, for example transformer, capacitor, reactor, switch cabinet busbar joint, cable, handcart is first-class, some described passive sonic surface wave sensors 1 are realized wireless telecommunications by dual-mode antenna disposed thereon and the goat horn type aerial coupling that is arranged on described temperature acquisition transceiver 2, the concrete 433M wireless communication mode that adopts, described temperature acquisition transceiver 2, described wireless network repeater and described local temperature treatment terminal 3 connect by 2.4G wireless telecommunications, described local temperature treatment terminal 3 realizes communication with described telemanagement main website 4 by TCP/IP LAN (Local Area Network) and is connected.The quantity of the described passive sonic surface wave sensor 1 in each switch cubicle is at least 6, and different frequency, simultaneously, described passive sonic surface wave sensor 1 is divided into the different chamber of switch cubicle according to actual conditions, the quantity Matching of the quantity of described goat horn type aerial and switch cubicle chamber, gathers and receives tested point targetedly.
Described local temperature treatment terminal 3 has following functions: the functions such as color touch man-machine interface, temperature list demonstration, temperature rise list show, period temperature curve shows, period temperature rise curve shows, sensor states shows, grouping setting, switch setting, the control of input/output switching amount, voice message, sound and light alarm, GSM SMS alarm; Described telemanagement main website 4 adopts C/S and B/S framework, and the described local temperature treatment terminal 3 of all transformer stations of supervisory system automatic regular polling receives the data of each point for measuring temperature, is presented in real time on main frame interface, whether out-of-limitly can detect image data; Can show the temperature changing curve diagram that each point for measuring temperature is long-term; Can carry out the comparison of many points for measuring temperature; Can record pre-alarm generation, the recovery information of all generations, for user provides the most intuitively, data analysis the most reliably, simultaneously it also has WEB issuing function, can be in LAN (Local Area Network) any computer expert cross web page browsing and authorize and login and check equipment state.
The utility model can also be realized following functions in conjunction with its supporting software program:
Monitoring function: real time temperature on-line monitoring, all switch cubicles are carried out to poll, realize data acquisition and arrangement.
Chart Presentation Function: with the form displays temperature real time data of list, represent temperature data statistical conditions and support many point for measuring temperature contrasts to show with the form of 2D, 3D figure.
System setting function: can carry out parameter downloads to equipment in system, the calibration of configuration passive sensor, early warning value, frequency band, all kinds of parameter settings such as sensor emission power, signal threshold level, system synchronization.
Historical trend: after device moves automatically, time recording temperature data; In the time of inquiry point for measuring temperature historical record, can show this point for measuring temperature trend by diagrammatic form.
Warning function: the multiple warning strategies such as can transfinite according to temperature threshold, temperature rise threshold value transfinites, uneven threshold value transfinites, Real-Time Monitoring fault signature, to extremely sending sound and light alarm signal and initiating alarm by dry contact or short message mode to a distant place.
Expert diagnosis: there is fuzzy neural network expert system, can carry out trend contrast for database model, find in advance fault, and can failure judgement type.
Network redundancy: the communication modes that adopts zigbee mesh network between the described temperature acquisition transceiver 2 in the inner different switch cubicles of transformer station, network has from recovering and link optimal route selection function, the mutual redundancy of routing node, guarantees that data accurately and reliably transmit.
Principle of the present utility model and testing process: described temperature acquisition transceiver 2 sends high frequency polling signal by described goat horn type aerial, then switch accepting state, described dual-mode antenna on described passive sonic surface wave sensor 1 in the received scope of signal of sending receives, and its this signal is converted to electric signal frequently; Now, the interdigital transducer being arranged on described passive sonic surface wave sensor 1 converts the electrical signal to again the surface acoustic wave signal of propagating at strand DNA on Surface of Quartz crystal, surface acoustic wave signal is after reflecting by a series of reflecting grating paths that are positioned at plane of crystal close-packed arrays coding, portion of energy converts surface acoustic wave signal to electric signal by described interdigital transducer again, is then sent by described dual-mode antenna; Because can making the spacing of reflecting grating, ambient temperature variation changes, so will cause pumping signal to produce in time in delay or phase place and change with reception signal, described temperature acquisition transceiver 2 sends the feedback echoed signal of returning receiving described passive sonic surface wave sensor 1, through filtering, amplification, sampling and data processing, extract the feature of echoed signal, by analysis and the contrast of frequency or phase place variation are obtained to dut temperature parameter; Described temperature acquisition transceiver 2 is sent to described local temperature treatment terminal 3 by temperature value by zigbee wireless network, and described local temperature treatment terminal 3 is carried out relevant information processing: as gather, demonstration, preservation, curve plotting and warning etc.; Described telemanagement main website 4 is responsible for collecting and manage the temperature treatment terminal data in each region by TCP/IP LAN (Local Area Network).
The utility model can be applicable to switch cubicle temperature control technology field.

Claims (5)

1. a passive and wireless formula In-Line Temperature Measure System, it is characterized in that: described passive and wireless formula In-Line Temperature Measure System comprises some passive sonic surface wave sensors (1), temperature acquisition transceiver (2), this locality temperature treatment terminal (3) and telemanagement main website (4), some described passive sonic surface wave sensors (1) are fixedly installed on respectively on some measured points of switch cubicle and are connected with described temperature acquisition transceiver (2) wireless telecommunications, described local temperature treatment terminal (3) is connected with described temperature acquisition transceiver (2) wireless telecommunications, described local temperature treatment terminal (3) is also connected with telemanagement main website (4) communication.
2. passive and wireless formula In-Line Temperature Measure System according to claim 1, is characterized in that: described passive and wireless formula In-Line Temperature Measure System also comprises and being arranged between described local temperature treatment terminal (3) and described temperature acquisition transceiver (2) for amplifying the wireless network repeater of wireless network signal.
3. passive and wireless formula In-Line Temperature Measure System according to claim 2, it is characterized in that: described passive sonic surface wave sensor (1) is cut lithium niobate quartz crystal as substrate and is provided with interdigital transducer and dual-mode antenna thereon taking YZ, is also provided with the reflecting grating of some row close-packed arrays codings on described quartz crystal.
4. passive and wireless formula In-Line Temperature Measure System according to claim 3, is characterized in that: described temperature acquisition transceiver (2) comprises digital signal processor, multi-channel high frequency radio circuit and some goat horn type aerials.
5. passive and wireless formula In-Line Temperature Measure System according to claim 4, it is characterized in that: the quantity of the described passive sonic surface wave sensor (1) in each switch cubicle is at least 6, and be divided into the different chamber of switch cubicle, the quantity Matching of the quantity of described goat horn type aerial and switch cubicle chamber, gathers targetedly and receives.
CN201420029387.9U 2014-01-17 2014-01-17 Passive wireless type on-line temperature measurement system Expired - Lifetime CN203672515U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132748A (en) * 2014-07-25 2014-11-05 南京普天通信股份有限公司 SAW temperature measurement system for switch cabinet
CN104359585A (en) * 2014-12-09 2015-02-18 中国电力科学研究院 Passive surface acoustic wave temperature measurement method based on wireless double-frequency coupling technique
CN104483036A (en) * 2014-12-17 2015-04-01 中国电力科学研究院 Passive and wireless temperature tour-inspection device for equipment in distribution network and implementation method for passive and wireless temperature tour-inspection device
CN104142191B (en) * 2014-08-22 2016-08-17 广东电网有限责任公司电力科学研究院 Vacuum isolation circuit breakers In-Line Temperature Measure System
CN104198060B (en) * 2014-08-26 2017-01-18 清华大学 High temperature-resistant wireless MEMS temperature sensing system
CN107131968A (en) * 2017-06-30 2017-09-05 深圳供电局有限公司 Temperature monitoring device and method for dry-type air-core reactor
CN107144340A (en) * 2016-03-01 2017-09-08 中国科学院上海高等研究院 A kind of bridge monitoring system and method based on 433MHz communications
CN108020344A (en) * 2017-07-27 2018-05-11 南京航空航天大学 The SAW ID-tag temp measuring system and method that time-division, time-division are combined with code division, time-division with frequency division, time-division with code division with frequency division
CN108051111A (en) * 2018-01-17 2018-05-18 浙江大学昆山创新中心 Vacuum coating intracavitary wireless and passive temperature measuring equipment and measuring method
CN108344800A (en) * 2018-01-17 2018-07-31 浙江大学 System for detecting temperature based on wireless passive sonic surface wave sensor and receive-transmit system
CN110132434A (en) * 2019-06-13 2019-08-16 北京智芯微电子科技有限公司 Temperature monitoring and analysis system based on passive temperature chip sensor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132748B (en) * 2014-07-25 2016-08-17 南京普天通信股份有限公司 Switch cubicle surface acoustic wave SAW temp measuring system
CN104132748A (en) * 2014-07-25 2014-11-05 南京普天通信股份有限公司 SAW temperature measurement system for switch cabinet
CN104142191B (en) * 2014-08-22 2016-08-17 广东电网有限责任公司电力科学研究院 Vacuum isolation circuit breakers In-Line Temperature Measure System
CN104198060B (en) * 2014-08-26 2017-01-18 清华大学 High temperature-resistant wireless MEMS temperature sensing system
CN104359585A (en) * 2014-12-09 2015-02-18 中国电力科学研究院 Passive surface acoustic wave temperature measurement method based on wireless double-frequency coupling technique
CN104483036A (en) * 2014-12-17 2015-04-01 中国电力科学研究院 Passive and wireless temperature tour-inspection device for equipment in distribution network and implementation method for passive and wireless temperature tour-inspection device
CN107144340A (en) * 2016-03-01 2017-09-08 中国科学院上海高等研究院 A kind of bridge monitoring system and method based on 433MHz communications
CN107131968A (en) * 2017-06-30 2017-09-05 深圳供电局有限公司 Temperature monitoring device and method for dry-type air-core reactor
CN108020344A (en) * 2017-07-27 2018-05-11 南京航空航天大学 The SAW ID-tag temp measuring system and method that time-division, time-division are combined with code division, time-division with frequency division, time-division with code division with frequency division
CN108020344B (en) * 2017-07-27 2020-03-17 南京航空航天大学 Surface acoustic wave label temperature measurement system and method combining time division, time division and frequency division, time division and code division, and time division and code division
CN108051111A (en) * 2018-01-17 2018-05-18 浙江大学昆山创新中心 Vacuum coating intracavitary wireless and passive temperature measuring equipment and measuring method
CN108344800A (en) * 2018-01-17 2018-07-31 浙江大学 System for detecting temperature based on wireless passive sonic surface wave sensor and receive-transmit system
CN108344800B (en) * 2018-01-17 2020-04-14 浙江大学 Temperature detection system and transceiving system based on wireless passive surface acoustic wave sensor
CN110132434A (en) * 2019-06-13 2019-08-16 北京智芯微电子科技有限公司 Temperature monitoring and analysis system based on passive temperature chip sensor

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Owner name: ZHONGSHAN POWER SUPPLY BUREAU OF GUANGZHONG POWER

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Inventor after: Lin Wei

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Inventor after: Liu Cheng

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Granted publication date: 20140625