CN207009172U - A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors - Google Patents
A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors Download PDFInfo
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- CN207009172U CN207009172U CN201720699642.4U CN201720699642U CN207009172U CN 207009172 U CN207009172 U CN 207009172U CN 201720699642 U CN201720699642 U CN 201720699642U CN 207009172 U CN207009172 U CN 207009172U
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Abstract
It the utility model is related to a kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors, including SAW Temperature Sensors, antenna, temperature collect module, signal amplification circuit, A/D change-over circuits, signal processing module.Temperature sensor is arranged on composite insulator steel cap metal parts inner surface, glass-epoxy leading-drawing rod surface and composite insulator umbrella skirt lower surface, antenna and is connected with SAW Temperature Sensors radio communication；Temperature sampler is connected by cable with antenna, and composite insulator temperature is targetedly detected.Temperature signal is first passed around into signal amplification circuit amplifies signal, then temperature signal is passed to the signal processing module of control centre through analog-digital commutator.The utility model is realized to the on-line monitoring of composite insulator temperature by sound surface probe, and then realizes the purpose that repair based on condition of component is carried out to composite insulator, to improving insulator service without power-off, avoids excessively overhauling significant.
Description
Technical field
The utility model belongs to the online real-time examination and repair of power equipment and area of maintenance, and sound surface is based on more particularly to one kind
The intelligent temperature measurement compound inslation subsystem of ripple temperature sensor.
Background technology
Composite insulator so that its anti-pollution characteristic is strong, accident null value, without cleaning, it is in light weight the advantages that obtained in power network it is wide
General application.But with the growth of run time, composite insulator engenders that aging is serious, under abnormal heating even working voltage
The problems such as breakdown.Dielectric or resistance loss when shelf depreciation, leakage current flow through megohmite insulant can all cause insulator local
Temperature raises.According to fever phenomenon, you can find the operational defect of composite insulator in time, it is ensured that safe operation of power system.
The method of the detection porcelain insulator closest with the utility model is infrared thermography and fiber Bragg light
Grid temperature sensor measurement method.Insulator infrared thermal imagery method is easily disturbed by the various noises of environment, it is impossible to is found in time multiple
Close the exception of insulator.Due to the operation principle of fiber grating in itself, to realize reliable signal detection, it is necessary to big using broadband
Power power-supply.This is just to installation with difficulty.Based on this utility model proposes a kind of based on SAW Temperature Sensors
Intelligent temperature measurement compound inslation subsystem can solve the above problems.
The content of the invention
The utility model provide it is a kind of using SAW Temperature Sensors measurement composite insulator temperature, and by signal
The analysis of up-delivering signal processing module carries out on-line monitoring and the temperature monitoring system of early warning.
Technical scheme is used by the utility model：
A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors, it is characterized in that：Including sound table
The temperature collect module that face ripple temperature sensor, antenna, Temperature sampler and cable form, signal amplification circuit, A/D moduluss of conversion
Block, signal processing module；The SAW Temperature Sensors are arranged on composite insulator steel cap metal parts inner surface, glass
Fibrous epoxy resin leading-drawing rod surface and composite insulator umbrella skirt lower surface；The antenna and SAW Temperature Sensors are wireless
Communication connection；The Temperature sampler is connected by cable with antenna, and composite insulator temperature is targetedly detected；
Temperature signal is first passed around into signal amplification circuit amplifies signal, then temperature signal is passed into signal through digiverter
Processing module；Signal processing module judges the temperature of composite insulator, when beyond setting threshold by being analyzed and processed to temperature signal
During value, system provides warning.
In a kind of above-mentioned intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors, composite insulator
Surface acoustic wave in system is changed into electric signal through CYRD-4 temperature collect modules, the signal amplification circuit through ADS8364 chips
Amplified signal, then the A/D modular converters through 74LVC16245 chips and ADSPM4-2AVI signal processing modules to electric signal at
Reason, the on-line monitoring to composite insulator temperature is realized above by passive surface acoustic wave sensor and communication mode.
In a kind of above-mentioned intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors, the signal is put
Big circuit includes the first amplifier A1 and the second amplifier A2, the first amplifier A1 in-phase input end and the temperature acquisition mould
Block 5 is connected, and a branch road of inverting input is grounded by resistance R1, and another branch road is connected by resistance R3 and its output end
Connect, the output end is connected with the IN+ ends of the ADS8364 chips in the A/D modular converters；Second amplifier A2's is reverse defeated
Enter end to be connected with its output end, in-phase input end is connected with the REF ends of the ADS8364 chips；One branch road of output end leads to
The in-phase input end that resistance R6 is crossed with the first amplifier A1 is connected, and another branch road passes through resistance R7 and described ADS8364 cores
The IN- ends connection of piece.
Compared with prior art, the surface acoustic wave sensor that the utility model uses need not power up in measuring apparatus
Source, belong to passive wireless sensor.Electrification in high voltage part is avoided to measuring circuit strong electromagnetic.Improve the degree of accuracy and can
By property, while also solves the shortcomings that easily being limited using infrared radiation thermometer by weather and use occasion.The utility model leads to
The on-line monitoring that surface acoustic wave sensor technology realizes composite insulator temperature is crossed, establishes composite insulator temperature and its work shape
The relation of state, and then realize the purpose that repair based on condition of component is carried out to composite insulator.To improving composite insulator service without power-off, keep away
Exempt from excessively maintenance to have great importance.
Brief description of the drawings
Fig. 1 is the structure chart of composite insulator temperature collect module.
Fig. 2 is structure diagram of the present utility model.
Fig. 3 is signal amplification circuit.
Embodiment
This composite insulator temperature online monitoring system is mainly the SAW Temperature Sensors by passive and wireless, after
Continuous signal processing apparatus completes the measurement to composite insulator temperature.The utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
In figure, 1, SAW Temperature Sensors, 2, antenna (yagi aerial), 3, Temperature sampler, 4, cable, 5, temperature
Acquisition module, 6, signal amplification circuit, 7, A/D modular converters, 8, signal processing module.
As Fig. 1 surface acoustic wave sensors 1 are arranged on composite insulator steel cap metal parts inner surface, glass fibre epoxy tree
The multiple temperature measuring points in fat leading-drawing rod surface and composite insulator umbrella skirt lower surface.SAW Temperature Sensors 1 include support, outer
Cover, surface acoustic wave thermometric chip and sensor antenna.Support is fixed on temperature measuring point, and its structure and the structure phase of temperature measuring point
Match somebody with somebody.Surface acoustic wave thermometric chip is fixed on support, and is connected with sensor antenna point.Outer cover is fixed on support, and is covered
Surface acoustic wave thermometric chip and sensor antenna, reach the purpose of protection surface acoustic wave thermometric chip and sensor antenna.Antenna 2
Installed in the range of 8~10 meters of 1 radius of SAW Temperature Sensors, and it is wireless with SAW Temperature Sensors 1
Communication connection.Antenna 2 preferably uses yagi aerial.Yagi aerial can use out of doors, have high-gain, simple in construction, reliably
The advantages of property is high.Use in the present system, the communication distance with sensor can be greatly improved, reach and ensure sensor and collector
Between carry out normal temperature collection purpose.Open antenna can also be selected according to installation environment, can select yagi aerial,
Orient plate aerial, omnidirectional's fibre-glass epoxy antenna etc..Temperature sampler 3 uses the collector with anti-interference reading algorithm function,
The side of the indicatrix of extraction sensor can be taken by analyzing the influence brought based on surface acoustic wave sensor disturbance
Method, reach and avoid the same frequency that the various noise jammings of nature and other Temperature samplers are brought at work in outdoor environment from doing
The purpose disturbed, so as to ensure the stability of the precision of temperature acquisition and collection.Temperature sampler 3 is connected by cable 4 and antenna 2
Connect.The characteristics of cable 4 uses radio-frequency cable, has working frequency range bandwidth, and insertion loss is low, and degree of protection is high.It can meet at family
The outer requirement used, and it is small due to being lost, it is adapted to connect up over long distances.
As Fig. 2 by acquisition module 5 obtains the electric signal of temperature, signal amplification circuit 6 is transferred to by coaxial wire,
Amplified by signal, input saturation, then analog-to-digital conversion is carried out by A/D modular converters 7.Digital data transmission is to signal transacting mould
Block 8 carries out calculating analysis.When temperature exceedes the temperature threshold of composite insulator setting, processing center is by temperature display in screen
Go up and provide voice message.
The utility model needs the hardware and its attachment structure of foregoing description to be protected, the processing side for being related to signal
Method and process, be in order to explain the operation principle of hardware configuration of the present utility model, be not belonging to the scope of protection of the utility model,
After hardware connection structure of the present utility model, the process of signal transacting can be achieved by the prior art.
Claims (3)
- A kind of 1. intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors, it is characterised in that：Including sound table The temperature collect module that face ripple temperature sensor, antenna, Temperature sampler and cable form, signal amplification circuit, A/D moduluss of conversion Block, signal processing module；The SAW Temperature Sensors are arranged on composite insulator steel cap metal parts inner surface, glass Fibrous epoxy resin leading-drawing rod surface and composite insulator umbrella skirt lower surface；The antenna and SAW Temperature Sensors are wireless Communication connection；The Temperature sampler is connected by cable with antenna, and composite insulator temperature is targetedly detected； Temperature signal is first passed around into signal amplification circuit amplifies signal, then temperature signal is passed into signal through digiverter Processing module.
- 2. a kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors according to claim 1, It is characterized in that：Surface acoustic wave on compound inslation subsystem is changed into electric signal through CYRD-4 temperature collect modules, warp The signal amplification circuit amplified signal of ADS8364 chips, then A/D modular converters and ADSPM4- through 74LVC16245 chips 2AVI signal processing modules are realized to compound to Electric signal processing above by passive surface acoustic wave sensor and communication mode The on-line monitoring of insulator temperature.
- 3. a kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors according to claim 1, It is characterized in that：The signal amplification circuit includes the first amplifier A1 and the second amplifier A2, the first amplifier A1 same phase Input is connected with the temperature collect module 5, and a branch road of inverting input is grounded by resistance R1, and another branch road leads to Cross resistance R3 to be connected with its output end, the output end and the IN of the ADS8364 chips in the A/D modular converters+End connection； Second amplifier A2 reverse input end is connected with its output end, and the REF ends of in-phase input end and the ADS8364 chips connect Connect；One branch road of output end is connected by resistance R6 with the first amplifier A1 in-phase input end, and another branch road passes through electricity Resistance R7 is connected with the IN- ends of described ADS8364 chips.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720699642.4U CN207009172U (en) | 2017-06-15 | 2017-06-15 | A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors |
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| CN201720699642.4U CN207009172U (en) | 2017-06-15 | 2017-06-15 | A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors |
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| CN207009172U true CN207009172U (en) | 2018-02-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195402A (en) * | 2017-06-15 | 2017-09-22 | 贵州电网有限责任公司电力科学研究院 | A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors |
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2017
- 2017-06-15 CN CN201720699642.4U patent/CN207009172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195402A (en) * | 2017-06-15 | 2017-09-22 | 贵州电网有限责任公司电力科学研究院 | A kind of intelligent temperature measurement compound inslation subsystem based on SAW Temperature Sensors |
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