CN205991848U - A kind of passive and wireless temp measuring system for switch cubicle - Google Patents
A kind of passive and wireless temp measuring system for switch cubicle Download PDFInfo
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- CN205991848U CN205991848U CN201620997626.9U CN201620997626U CN205991848U CN 205991848 U CN205991848 U CN 205991848U CN 201620997626 U CN201620997626 U CN 201620997626U CN 205991848 U CN205991848 U CN 205991848U
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- switch cubicle
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- antenna
- passive
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Abstract
The utility model discloses a kind of passive and wireless temp measuring system for switch cubicle, including wireless senser, antenna, reader and monitor, described wireless senser is fixed on the busbar at the switch cabinet contact back side, described antenna is adsorbed on switch cubicle inwall, it is connected with reader by coaxial cable, realizes data transfer by serial communication interface or wireless transport module between described reader and monitor.This utility model structure is simple, for carrying out temperature measurement on-line to heating position easy in switch cubicle, has the characteristics that security reliability is high, thermometric real-time is good, installs and easy to maintenance.
Description
Technical field
This utility model is related to electrical equipment technical field, more specifically, more particularly, to a kind of nothing for switch cubicle
Source wireless temperature measurement system.
Background technology
At present, multiple thermometrys are had to be applied in power equipment thermometric, relatively more traditional is temperature indicating paster and red
Outer temperature measurer, belongs to the auxiliary equipment of manual inspection, needs personnel periodically to arrive field observation and inspection.The most frequently used is manually red
The gentle defect in following several respects of exterior measuring：1st, missing inspection, probability of false detection are big：By the responsibility of patrol officer, professional standards, work
State impact is big, and data reliability is low；2nd, it is subject to the environmental effect such as dust, weather big：When there are condensation and dust dirt in tested position
When thermometric forbidden, outdoor thermometric is then affected greatly by sleet and haze weather；3rd, the temperature in unobstructed, visual range can only be detected
Degree：Infrared measurement of temperature cannot detect the temperature outside visual line of sight, or even can not survey windowpane temperature below；4th, human cost is high：
Need personnel to scene, this especially increased human cost in remote bleak and desolate area.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of low cost, easy for installation, peace
The complete high passive and wireless temp measuring system for switch cubicle of performance, carries out temperature measurement on-line to heating position easy in switch cubicle.
For achieving the above object, the technical solution adopted in the utility model is：A kind of passive and wireless for switch cubicle is surveyed
Warm system, including wireless senser, antenna, reader and monitor, described wireless senser is fixed on the switch cabinet contact back side
Busbar on, described antenna is adsorbed on switch cubicle inwall, and it is connected with reader by coaxial cable, described reader and prison
Between visual organ, data transfer is realized by serial communication interface or wireless transport module.
Compared with prior art, this utility model has advantages below：
1st, security reliability is high：Wireless temperature measurement mode avoids introducing line on high pressure equipment, does not affect High-Voltage Insulation,
Avoid the hidden danger of " climbing electricity ", and sensor does not need battery to power, it is to avoid battery high-temperature blast and chemical leakage etc. are hidden
Suffer from；
2nd, easy for installation：Sensor bulk is little, and data is wirelessly transferred and reader between, easy for installation flexible, is not set
Standby structure and spacial influence, it is to avoid complicated wiring；
3rd, thermometric real-time is good：Temperature measurement on-line, can detection switch cabinet equipment temperature change at any time；
4th, easy to maintenance：Sensor is completely passive, is not required to periodic replacement battery, long service life, installs basic after success
Non-maintaining.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure：1- switch cubicle；2- busbar；3- wireless senser；4- antenna；5- reader；6- monitor.
Specific embodiment
The utility model is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute to this reality
With new any restriction.
As shown in figure 1, a kind of passive and wireless temp measuring system for switch cubicle that this utility model provides, pass including wireless
Sensor 3, antenna 4, reader 5 and monitor 6.Described wireless senser 3 is fixed on out by bolt, special fixture or band
Close on the busbar 2 at the cabinet contact back side, described antenna 4 is strong magnetic force plate antenna, and its bottom is provided with strong magnetic force Magnet, can make antenna
It is adsorbed on switch cubicle 1 inwall, antenna 4 is connected with reader 5 by coaxial cable, logical between described reader 5 and monitor 6
Cross serial communication interface（As RS485）Or wireless transport module realizes data transfer.
In this utility model, described wireless senser 3 is resonator type surface acoustic wave sensor；Reader 5 is mode of resonance sound
Surface wave reader,, similar to a pulse radar transceiver, under working condition, reader 5 constantly launches pulse frequency sweep letter for it
Number, the signal launched can encourage the resonance of sensor 3, so that reader 5 is able to detect that the resonance frequency of sensor 3
Rate, and then parse temperature value.
During utility model works, electromagnetic scanning signals are sent by reader 5, wireless senser 3 receives electromagnetic signal
It is converted into the surface acoustic wave of its internal work afterwards by interdigital transducer, surface acoustic wave is propagated along internal piezoelectric substrate, and reflection is produced
Raw resonance, its resonant frequency is linear with temperature；Resonance signal is converted into electromagnetic signal by interdigital transducer again, through antenna
4 return to reader 5, and reader 5 extracts the electromagnetic wave signal frequecy characteristic that wireless senser 3 returns, and obtain temperature information, and
Monitor 6 shows.
Generally, power switch cabinet typically divides multiple chambers, is separated by metal partion (metp) between different chamber, and surface acoustic wave passes
Sensor is passive, and signal is very faint, and its signal is difficult to be received by the antenna positioned at metal partion (metp) opposite side.Therefore, in reality
Border in installing typically every 3 sensors arrange in pairs or groups 1 antenna located at a chamber, for one within the chamber A, B of detection, C three-phase
Temperature.And sensor is at most divided into 12 kinds of models, it is operated in 12 frequency ranges respectively, number adjacent working sensor frequency range
Adjacent, in order to eliminate the impact that may produce between adjacent sensors because of the parasitism frequency interference of temperature-sensitive chip, in layout to the greatest extent
Amount ensures that adjacent temperature measurement location sensor model number is non-conterminous.For example：Model S1, S3, the sensor of S5 are contained on switch cubicle
Layer chamber；Model S2, S4, the sensor of S6 are contained in switch cubicle lower chamber.In order that the temperature value of measurement is more accurate,
Sensor should be arranged on the busbar at the contact back side, as far as possible little with the distance of contact.
Claims (4)
1. a kind of passive and wireless temp measuring system for switch cubicle it is characterised in that：Including wireless senser, antenna, reader
And monitor, described wireless senser is fixed on the busbar at the switch cabinet contact back side, and described antenna is adsorbed in switch cubicle inwall
On, it is connected with reader by coaxial cable, passes through serial communication interface or wireless between described reader and monitor
Transport module realizes data transfer.
2. the passive and wireless temp measuring system for switch cubicle according to claim 1 it is characterised in that：Described wireless sensing
Device is resonator type surface acoustic wave sensor, and described reader is resonator type surface acoustic wave reader.
3. the passive and wireless temp measuring system for switch cubicle according to claim 1 it is characterised in that：Described wireless sensing
Device at least three, A, B, C three-phase being separately fixed in switch cubicle same chamber by bolt, special fixture or band is female
On row.
4. the passive and wireless temp measuring system for switch cubicle according to claim 1 it is characterised in that：Described antenna is strong
Magnetic force plate antenna, its bottom is provided with strong magnetic force Magnet, and antenna can be made to adsorb on switch cubicle inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997626.9U CN205991848U (en) | 2016-08-31 | 2016-08-31 | A kind of passive and wireless temp measuring system for switch cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997626.9U CN205991848U (en) | 2016-08-31 | 2016-08-31 | A kind of passive and wireless temp measuring system for switch cubicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205991848U true CN205991848U (en) | 2017-03-01 |
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ID=58105352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997626.9U Active CN205991848U (en) | 2016-08-31 | 2016-08-31 | A kind of passive and wireless temp measuring system for switch cubicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN205991848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796527A (en) * | 2016-08-31 | 2018-03-13 | 湖北长江电气有限公司 | A kind of passive and wireless temp measuring system for switch cubicle |
| CN107966219A (en) * | 2017-06-08 | 2018-04-27 | 国家电网公司 | power switch cabinet passive wireless temperature measuring device |
-
2016
- 2016-08-31 CN CN201620997626.9U patent/CN205991848U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796527A (en) * | 2016-08-31 | 2018-03-13 | 湖北长江电气有限公司 | A kind of passive and wireless temp measuring system for switch cubicle |
| CN107966219A (en) * | 2017-06-08 | 2018-04-27 | 国家电网公司 | power switch cabinet passive wireless temperature measuring device |
| CN107966219B (en) * | 2017-06-08 | 2023-09-26 | 国家电网公司 | Passive wireless temperature measuring device of power switch cabinet |
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