CN203745576U - Multifunctional meter with passive wireless temperature measurement function - Google Patents
Multifunctional meter with passive wireless temperature measurement function Download PDFInfo
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- CN203745576U CN203745576U CN201420103380.7U CN201420103380U CN203745576U CN 203745576 U CN203745576 U CN 203745576U CN 201420103380 U CN201420103380 U CN 201420103380U CN 203745576 U CN203745576 U CN 203745576U
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- electromagnetic wave
- module
- dynamometer instrument
- multifunctional meter
- temperature measurement
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- 238000009529 body temperature measurement Methods 0.000 title abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000013307 optical fiber Substances 0.000 description 6
- 230000007774 longterm Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a multifunctional meter with a passive wireless temperature measurement function. The multifunctional meter is characterized by comprising a power meter (1); the power meter (1) is internally provided with an electric parameter measurement module and a display module; an intelligent read-write device (2) is internally provided with a CPU (2.1), an electromagnetic wave transmitting module (2.2), an electromagnetic wave receiving module(2.3), and an operation module (2.4); the electromagnetic wave transmitting module (2.2), the electromagnetic wave receiving module (2.3) and the operation module (2.4) are connected with the CPU (2.1); the electromagnetic wave transmitting module (2.2) and the electromagnetic wave receiving module (2.3) are connected with an antenna (3); and an SAW temperature sensor (4) is arranged in a switch cabinet and at a connection point between a contact and bus. The multifunctional meter with the passive wireless temperature measurement function can realize the real-time online monitoring, and is not subjected to damage, integrated with a variety of functions, and high in applicability.
Description
Technical field
The utility model relates to a kind of multifunctional meter with passive and wireless temp sensing function, be used for high-tension switch cabinet, monitor and Electro-metering for the electric parameter of measuring whole electricity consumption loop, and high voltage bus thermometric and primary cut-out contact are carried out to thermometric, greatly reduce the generation of joining power supply trouble.
Background technology
High-tension switch cabinet is the visual plant in generating plant, transformer station, plays a part to open and turn-off power supply, is used for realizing conveying and conversion electric load and exits faulty equipment and line segment from electric system, thereby ensureing safe operation of power system.High-tension switch cabinet is in During Process of Long-term Operation, and the positions such as the contact point in switch cubicle and bus (busbar) junction, no matter be loosening or the aging increase that all can cause contact resistance.Because heating of contact, temperature raises can accelerate again the oxidation of surface of contact metal, thereby further increases contact resistance, so just form a vicious cycle, easily occurring that local temperature sharply raises causes contact fusing, opens circuit thereby cause, and causes large-area power-cuts.In recent years, there are a lot of switch cubicle overheat accidents in power plant and transformer station, caused fire and large-area power outage, thereby affect the normal work of whole electric system, even brought about great losses.
But common wired temperature measuring equipment is 220V voltage, can not be applied in high-tension switch cabinet, thereby out a variety of applicable thermometric modes of diffraction, apply that more to mainly contain optical fiber temperature-measurement, infrared measurement of temperature, wireless active thermometric, wireless induction power taking thermometric etc. several.But these thermometric modes have larger limitation in application:
Optical fiber temperature-measurement: the high pressure of optical fiber in can disconnector cabinet equipment, can directly be installed on measured point, but optical fiber uses after accumulation dust long-time, easily cause optical fiber creeping discharge and insulativity is reduced, optical fiber cabling can not overflexing, otherwise can cause even fibercuts of loss increase.
Infrared measurement of temperature: belong to contactless temperature-measuring, be subject to the interference of electromagnetic field when application and cause accuracy to decline, can not have shelter in the middle of when thermometric.But in a lot of environment, near point for measuring temperature, fixing infrared temperature probe cannot be installed, and can only lean on artificial inspection, cannot real time on-line monitoring.
Wireless active thermometric: thermometric device adds wireless communication module, uses powered battery.Sensing head need to regularly replace battery, and maintenance cost is high, and battery is unsuitable for long-term work in hot environment, and mission life leaves a question open.
Wireless induction power taking thermometric: claim again CT power taking, need on contact arm, install inductive coil additional to obtain electric energy, install loaded down with trivial details, hardware is complicated, reliability and stability need to be investigated, when power failure, cannot work, in the time that sensor is not worked, be difficult to judgement be because equipment have a power failure cause or there is fault in sensor itself.
Therefore need the one can real time on-line monitoring, reliable and stable, the appearance of the thermometric mode that applicability is strong.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides the one can real time on-line monitoring, not fragile, the multifunctional meter with passive and wireless temp sensing function that several functions is integrated.
The purpose of this utility model is achieved in that
The multifunctional meter of the utility model band passive and wireless temp sensing function, comprise dynamometer instrument, in described dynamometer instrument, be provided with electric parameter metering module, display module, described dynamometer instrument is connected with intelligent read device, described intelligent read device is directly loaded in dynamometer instrument or is connected with dynamometer instrument by bus, in this intelligent read device, be provided with CPU, electromagnetic wave transmitter module, electromagnetic wave receiver module, computing module, electromagnetic wave transmitter module, electromagnetic wave receiver module is all connected with CPU with computing module, described electromagnetic wave transmitter module is all connected with antenna with electromagnetic wave receiver module, described SAW temperature sensor is loaded on contact point and the bus junction in switch cubicle, described antenna coordinates with SAW temperature sensor.
Compared with prior art, the beneficial effects of the utility model are:
Passive: temperature sensor is unworthy of charged pool, without power supply.The place that is applicable to inconvenient power taking or replacing battery, is applicable to Different high risk sites explosion-proof, insulating requirements;
Wireless: temperature sensor carries antenna, without aerial lug, be applicable to the monitoring to rotatable parts, sealed environment, eliminate the complicacy of wiring;
Volume is little: can realize the physical dimension of centimetre-sized, and easy for installation, reliable;
Precision is high: temperature measurement accuracy can reach ± 1 DEG C (have higher temperature measurement accuracy requirement customizable);
Good environmental adaptability: be applicable to high temperature, low temperature, high voltage, radiation, vacuum, the various rugged surroundings such as inflammable and explosive;
Good stability: be applicable to long-term use, without adjusting and safeguarding.
Brief description of the drawings
Fig. 1 is the structural representation of the multifunctional meter of the utility model band passive and wireless temp sensing function.
Fig. 2 is the structural representation of intelligent read device in Fig. 1.
Wherein: dynamometer instrument 1, intelligent read device 2, CPU2.1, electromagnetic wave transmitter module 2.2, electromagnetic wave receiver module 2.3, computing module 2.4, antenna 3, SAW temperature sensor 4.
Embodiment
Referring to Fig. 1 and Fig. 2, the utility model relates to a kind of multifunctional meter with passive and wireless temp sensing function, comprise dynamometer instrument 1, in described dynamometer instrument 1, be provided with electric parameter metering module, display module, electric quantity monitoring and metering are carried out in whole electricity consumption loop, described dynamometer instrument 1 is connected with intelligent read device 2, described intelligent read device 2 is directly loaded in dynamometer instrument 1 or is connected with dynamometer instrument 1 by bus, in this intelligent read device 2, be provided with CPU2.1, electromagnetic wave transmitter module 2.2, electromagnetic wave receiver module 2.3, computing module 2.4, electromagnetic wave transmitter module 2.2, electromagnetic wave receiver module 2.3 is all connected with CPU2.1 with computing module 2.4, described electromagnetic wave transmitter module 2.2 is all connected with antenna 3 with electromagnetic wave receiver module 2.3, described SAW temperature sensor 4 is SAW Temperature Sensors, this SAW temperature sensor 4 is loaded on contact point and the bus junction in switch cubicle, described antenna 3 coordinates with SAW temperature sensor 4.
This multifunctional meter with passive and wireless temp sensing function sends electromagnetic wave by the electromagnetic wave transmitter module 2.2 of intelligent read device 2, and issue SAW temperature sensor 4 by antenna 3, and receive electromagnetic wave by electromagnetic wave receiver module 2.3, the wave frequency that sends and receive has certain variation, the frequency of this variation is directly proportional to the temperature of temperature sensor, sending this difference on the frequency to computing module 2.4 by CPU2.1 calculates, just the temperature that records contact point that can be real-time very accurately, intelligent read device 2 transfers data to dynamometer instrument 1 subsequently, the temperature recording shows by the display module of dynamometer instrument 1.
This multifunctional meter with passive and wireless temp sensing function can real time on-line monitoring, not fragile, and several functions is integrated, and applicability is stronger.
Claims (1)
1. the multifunctional meter with passive and wireless temp sensing function, it is characterized in that: it comprises dynamometer instrument (1), described dynamometer instrument is provided with electric parameter metering module in (1), display module, described dynamometer instrument (1) is connected with intelligent read device (2), described intelligent read device (2) is directly loaded in dynamometer instrument (1) or is connected with dynamometer instrument (1) by bus, in this intelligent read device (2), be provided with CPU(2.1), electromagnetic wave transmitter module (2.2), electromagnetic wave receiver module (2.3), computing module (2.4), electromagnetic wave transmitter module (2.2), electromagnetic wave receiver module (2.3) and computing module (2.4) all with CPU(2.1) be connected, described electromagnetic wave transmitter module (2.2) is all connected with antenna (3) with electromagnetic wave receiver module (2.3), described SAW temperature sensor (4) is loaded on contact point and the bus junction in switch cubicle, described antenna (3) coordinates with SAW temperature sensor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103380.7U CN203745576U (en) | 2014-03-10 | 2014-03-10 | Multifunctional meter with passive wireless temperature measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103380.7U CN203745576U (en) | 2014-03-10 | 2014-03-10 | Multifunctional meter with passive wireless temperature measurement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745576U true CN203745576U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103380.7U Expired - Fee Related CN203745576U (en) | 2014-03-10 | 2014-03-10 | Multifunctional meter with passive wireless temperature measurement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745576U (en) |
-
2014
- 2014-03-10 CN CN201420103380.7U patent/CN203745576U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170731 Address after: 214434 No. 65-1, Dong Ding Road, Chengdong street, Jiangsu, Jiangyin Patentee after: Jiangyin Zhongzhou Electronics Co., Ltd. Address before: 214434, Jiangsu, Wuxi province Jiangyin City East Street, Hill view east set Road 65 Patentee before: JIANGYIN ZHONGZHOU ELECTRONICS CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20190310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |