CN204988540U - A switch cabinet wireless temperature -measuring system - Google Patents
A switch cabinet wireless temperature -measuring system Download PDFInfo
- Publication number
- CN204988540U CN204988540U CN201520329699.6U CN201520329699U CN204988540U CN 204988540 U CN204988540 U CN 204988540U CN 201520329699 U CN201520329699 U CN 201520329699U CN 204988540 U CN204988540 U CN 204988540U
- Authority
- CN
- China
- Prior art keywords
- temperature
- switch cubicle
- antenna
- reader
- measurement system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a switch cabinet wireless temperature -measuring system, include: the temperature transducer adopts the surface acoustic wave sensor ware, install in the cubical switchboard temperature measurement point department and with the inner wall interval of cubical switchboard, first antenna, locate the cubical switchboard inner wall on, and the wall body that first antenna passed the cubical switchboard extends to the outside for and the electromagnetic wave signal is sent and received between the temperature transducer, the reading device lies in the cubical switchboard outside, and the reading device is equipped with at least one and an antenna connection's antennal interface for through line emission electromagnetism scanning signal and receive the electromagnetic wave signal that the temperature transducer returned first day, electromagnetic wave acquisition of signal temperature information that the reading device returned according to the temperature transducer. The utility model discloses wireless temperature measurement mode is not only installed simply, does not receive equipment structure and space affected, and the reading device between wireless transmission, do not influence the high voltage insulation in the cubical switchboard, the security is high, and the sensor need not the power, does not need the periodic replacement battery, the installation back is non -maintaining.
Description
Technical field
The utility model relates to temperature detection field, especially, relates to a kind of switch cubicle wireless temperature measurement system.
Background technology
Switch cubicle is widely used in electric system, is the visual plant in electrical power trans mission/distribution system, carries the vital role cut-offfing and close power circuit, line fault protection, monitoring operation electric quantity data.Switchgear because of the dynamic and static contact of primary cut-out bad, add that the factors such as long-term big current, contact are aging easily cause its contact resistance and increase, thus cause that long-time heating, contact temperature rise are too high even finally high-voltage board burnout failure occurs.By monitoring continuously switch in-cabinet temperature, realizing the early warning of fault, when a failure occurs it, providing and alarm indicate position of failure point, and the detailed Monitoring Data of fault analysis is provided.The safe and reliable operation of switch cubicle can be ensured.
Because switch cubicle is hermetically-sealed construction, and be in charging operation state, it is several that the technology of monitoring for switch cubicle running temperature at present mainly comprises conventional temperature-measurement, infrared measurement of temperature, optical fiber temperature-measurement and active radio thermometric.The thermometric mode of existing switch cubicle is analyzed as follows:
1, conventional temperature-measurement adopts the conventional thermometric mode such as thermopair, thermal resistance, semiconductor temperature sensor, and need plain conductor signal transmission, insulating property can not ensure;
2, fibre optic temperature sensor adopts fiber optic transmission temperature signal, light transmitting fiber has excellent insulating property, can high pressure in isolating switch cabinet, therefore fibre optic temperature sensor can directly be installed on the high-voltage contact in switch cubicle, the running temperature of Measurement accuracy high-voltage contact, realizes the on-line monitoring of switch cubicle contact running temperature.But optical fiber has easy to break, the characteristics such as easily broken, non-refractory, and easily cause optical fiber creeping discharge after accumulation dust thus insulativity is reduced, and affect by switch cabinet structure, the difficulty that connects up in cabinet is larger.In addition, the cost of optical fiber temperature-measurement is also relatively high.
3, infrared measurement of temperature is contactless temperature-measuring, be subject to environment and the interference of electromagnetic field around, space in addition in switch cubicle is very narrow and small, (cannot must keep certain safe distance with testee because of probe by installation infrared temperature probe, and need just to the surface of testee), require that measured point can there is no coverage in the visual field, and surface clean is to guarantee accuracy.
4, active radio thermometric, active radio temperature sensor size is usually relatively large and often need change battery, and system maintenance cost is higher.Meanwhile, battery is unsuitable for working at high operating temperatures, particularly higher than the working environment of 150 degrees Celsius.
To sum up, the defects such as existing switch cubicle thermometric mode exists that insulativity is inadequate, cost is high, installing space is large, poor reliability or Maintenance Difficulty, therefore, need a kind of temp measuring system being applicable to switch cubicle working environment of exploitation badly.
Utility model content
The utility model provides a kind of switch cubicle wireless temperature measurement system, has that insulativity is inadequate, cost is high, installing space is large, the technical matters of the defect such as poor reliability or Maintenance Difficulty to solve existing switch cubicle temp measuring system.
The technical solution adopted in the utility model is as follows:
A kind of switch cubicle wireless temperature measurement system, for the on-line monitoring of inside switch cabinet temperature, switch cubicle wireless temperature measurement system comprises:
Temperature probe, adopt surface acoustic wave sensor, be arranged on temperature measuring point place in switch cubicle and and the inwall interval of switch cubicle to insulate, for the temperature at on-line checkingi temperature measuring point place;
First antenna, is located on switch cubicle inwall, and the wall body that the first antenna passes switch cubicle extends to outside, for sending between temperature probe and receiving electromagnetic wave signal;
Reader, be positioned at switch cubicle outside, reader is provided with at least one antennal interface be connected with the first antenna, and for receiving through the first antenna transmission electromagnetic scanning signals the electromagnetic wave signal that temperature probe returns, the electromagnetic wave signal that reader returns according to temperature probe obtains temperature information.
Further, temperature probe comprises:
Fabricated section, is fixed on temperature measuring point place,
Surface acoustic wave temperature sensing device, is connected on fabricated section, for the temperature of temperature sensor measurement point;
Second antenna, is connected to surface acoustic wave temperature sensing device, for receive and transmit electromagnetic wave signal to surface acoustic wave temperature sensing device and send surface acoustic wave temperature sensing device export electromagnetic wave signal.
Further, the first antenna comprises: antenna body, magnetic suction disc base and radio-frequency cable;
Antenna body is adsorbed on switch cubicle inwall through magnetic suction disc base, and it is outer and be connected with the antennal interface on reader, to realize the signal transmission between antenna body and reader that radio-frequency cable extends the wall body of switch cubicle.
Further, the junction of radio-frequency cable and switch cubicle wall body is provided with sealing adaptor.
Further, the output terminal of reader is connected with the display module for data display.
Further, the output terminal of reader is connected with the alarm module for temperature alarming.
Further, temperature measuring point includes but not limited to: isolation switch contact, conductive bus bar contact.
Further, the temperature measuring point of same switch cubicle is multiple, and each temperature measuring point is a corresponding temperature probe respectively.
Further, reader detects multiple switch cubicle simultaneously, and all arrange first antenna in each switch cubicle, reader is provided with multiple antennal interface, and multiple first antenna is connected to reader through antennal interface respectively.
The utility model has following beneficial effect:
The utility model switch cubicle wireless temperature measurement system, by the temperature measuring point place in switch cubicle, surface acoustic wave sensor is installed, and the first antenna is set on switch cubicle inwall, and the first antenna extends switch cubicle wall Ligation in vitro reader, reader is through the first antenna emitting electromagnetic wave sweep signal, be positioned at switch cubicle surface acoustic wave sensor receive electromagnetic wave and return with temperature profile electromagnetic wave give the first antenna, reader is by extracting the electromagnetic wave signal that returns of surface acoustic wave sensor to obtain the temperature information reflecting temperature measuring point place in switch cubicle, thus achieve the temperature detection of the wireless and passive of temperature measuring point in switch cubicle, this wireless temperature measurement mode is not only installed simply, not by device structure and spacial influence, and and wireless transmission between reader, do not affect the High-Voltage Insulation in switch cubicle, avoid the hidden danger of wired thermometric mode " creepage ", security is high, and sensor is without the need to power supply, do not need to regularly replace battery, non-maintaining after installing.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model preferred embodiment switch cubicle wireless temperature measurement system.
Description of reference numerals:
10, temperature probe;
20, the first antenna; 21, antenna body; 22, magnetic suction disc base; 23, radio-frequency cable; 24, sealing adaptor;
30, reader;
40, display module;
50, power supply;
60, switch cubicle.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1, preferred embodiment of the present utility model provides a kind of switch cubicle wireless temperature measurement system, for the on-line monitoring of switch cubicle 60 internal temperature, the present embodiment switch cubicle wireless temperature measurement system comprises: temperature probe 10, be arranged on temperature measuring point place in switch cubicle 60 and and the inwall interval of switch cubicle 60 to insulate, for the temperature at on-line checkingi temperature measuring point place, temperature probe 10 adopts surface acoustic wave sensor; First antenna 20, is located on switch cubicle 60 inwall, and the wall body that the first antenna 20 passes switch cubicle 60 extends to outside, for sending between temperature probe 10 and receiving electromagnetic wave signal; Reader 30, be positioned at switch cubicle 60 outside, reader 30 is provided with at least one antennal interface be connected with the first antenna 20, for launching electromagnetic scanning signals through the first antenna 20 and receiving the electromagnetic wave signal that temperature probe 10 returns, the electromagnetic wave signal that reader 30 returns according to temperature probe 10 obtains temperature information.During the work of the present embodiment switch cubicle wireless temperature measurement system, reader 30 launches electromagnetic scanning signals through the first antenna 20 in switch cubicle 60, the surface acoustic wave sensor being positioned at switch cubicle 60 receives electromagnetic wave and electromagnetic wave is converted to the surface acoustic wave of internal work, due to propagation characteristic and the linear characteristic relation of temperature of surface acoustic wave, therefore reader 30 receives by the first antenna 20 electromagnetic wave signal that surface acoustic wave sensor returns can obtain temperature information, thus realize the on-line temperature monitoring to switch cubicle 60 inside.Because surface acoustic wave sensor has the feature of " completely passive " and " wireless reading ", therefore be passive wireless sensor, the present embodiment wireless temperature measurement mode is not only installed simply, not by device structure and spacial influence, and and wireless transmission between reader, do not affect the High-Voltage Insulation in switch cubicle, avoid the hidden danger of wired thermometric mode " creepage ", security is high, and sensor is without the need to power supply, do not need to regularly replace battery, non-maintaining after installing.
In the present embodiment, temperature probe 10 comprises: fabricated section, is fixed on temperature measuring point place; Surface acoustic wave temperature sensing device, is connected on fabricated section, for the temperature of temperature sensor measurement point; Second antenna, is connected to surface acoustic wave temperature sensing device, for receive and transmit electromagnetic wave signal to surface acoustic wave temperature sensing device and send surface acoustic wave temperature sensing device export electromagnetic wave signal.Wherein, electromagnetic wave is converted to the surface acoustic wave of internal work by surface acoustic wave temperature sensing device through interdigital transducer; Surface acoustic wave converts electromagnetic wave signal to through interdigital transducer again and goes out via the second antenna transmission.In the present embodiment, temperature measuring point includes but not limited to: isolation switch contact, conductive bus bar contact.
In the present embodiment, the first antenna 20 comprises: antenna body 21, magnetic suction disc base 22 and radio-frequency cable 23; Wherein, antenna body 21 is adsorbed on switch cubicle 60 inwall through magnetic suction disc base 22, and it is outer and be connected with the antennal interface on reader 30, to realize the signal transmission between antenna body 21 and reader 30 that radio-frequency cable 23 extends the wall body of switch cubicle 60.Because switch cubicle 60 is hermetically-sealed construction, radio-frequency cable 23 is provided with sealing adaptor 24 with the junction of switch cubicle 60 wall body.In the present embodiment, by the sealing adaptor of SMA, radio-frequency cable 23 is connected to outside switch cubicle 60.
In the present embodiment, reader 30 is installed on switch cabinet instrument room, and reader 30 communicates with temperature probe 10 multiple in switch cubicle 60 through the first antenna 20, to carry out on-line temperature monitoring to multiple temperature measuring points of same switch cubicle 60, wherein, each temperature measuring point at least one temperature probe 10 corresponding respectively.Alternatively, with reference to Fig. 1, a reader 30 is provided with four antennal interfaces, in the present embodiment, antennal interface ANT1 reads temperature probe S1, S3, S5 through the first antenna 20, and to monitor switch cubicle 60 internal temperature upper left in figure, antennal interface ANT2 reads temperature probe S2, S4, S6 through the first antenna 20, to monitor switch cubicle 60 internal temperature of lower left in figure, thus realize monitoring while multiple inside switch cabinet temperature.
In the present embodiment, reader 30 connects the power supply 50 for its power supply, the output terminal of reader 30 is connected with the display module 40 for data display, and display module 40 receives temperature data by RS485 interface from reader 30, the information such as display temperature probe numbering, temperature, signal intensity.Preferably, the output terminal of reader 30 is connected with the alarm module for temperature alarming, and reader 30 sends the alerting signal such as buzzing, flash of light according to the temperature limit of setting through alarm module.
Can learn from above description, the present embodiment switch cubicle wireless temperature measurement system has the following advantages:
1, communication not impact to voltage insulation, avoid the hidden danger of wired mode " creepage ", security is high.
2, reliability is high, and temperature probe is completely passive, not charged pool, avoids the hidden danger such as battery high-temperature blast and chemistry leakage.
3, install simply, passive temperature sensor bulk is little, and between reader, data wireless transmits, flexibly easy for installation, not by device structure and spacial influence.
4, thermometric real-time is good, temperature measurement on-line, can monitoring equipment temperature variation at any time.
5, easy to maintenance, sensor is completely passive, does not need to regularly replace battery, long service life.Non-maintaining after successful installation.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a switch cubicle wireless temperature measurement system, for the on-line monitoring of switch cubicle (60) internal temperature, is characterized in that, described switch cubicle wireless temperature measurement system comprises:
Temperature probe (10), adopt surface acoustic wave sensor, be arranged on described switch cubicle (60) interior temperature measuring point place and and the inwall interval of described switch cubicle (60) to insulate, for the temperature at temperature measuring point place described in on-line checkingi;
First antenna (20), be located on described switch cubicle (60) inwall, and described first antenna (20) extends to outside through the wall body of described switch cubicle (60), for sending between described temperature probe (10) and receiving electromagnetic wave signal;
Reader (30), be positioned at described switch cubicle (60) outside, described reader (30) is provided with at least one antennal interface be connected with described first antenna (20), for launching electromagnetic scanning signals through described first antenna (20) and receiving the electromagnetic wave signal that described temperature probe (10) returns, the electromagnetic wave signal that described reader (30) returns according to described temperature probe (10) obtains temperature information.
2. switch cubicle wireless temperature measurement system according to claim 1, is characterized in that, described temperature probe (10) comprising:
Fabricated section, is fixed on described temperature measuring point place,
Surface acoustic wave temperature sensing device, is connected on described fabricated section, for responding to the temperature at described temperature measuring point place;
Second antenna, is connected to described surface acoustic wave temperature sensing device, for receive and transmit electromagnetic wave signal give described surface acoustic wave temperature sensing device and send described surface acoustic wave temperature sensing device export electromagnetic wave signal.
3. switch cubicle wireless temperature measurement system according to claim 1, is characterized in that, described first antenna (20) comprising: antenna body (21), magnetic suction disc base (22) and radio-frequency cable (23);
Described antenna body (21) is adsorbed on described switch cubicle (60) inwall through described magnetic suction disc base (22), it is outer and be connected with the antennal interface on described reader (30), to realize the signal transmission between described antenna body (21) and described reader (30) that described radio-frequency cable (23) extends the wall body of described switch cubicle (60).
4. switch cubicle wireless temperature measurement system according to claim 3, is characterized in that,
Described radio-frequency cable (23) is provided with sealing adaptor (24) with the junction of described switch cubicle (60) wall body.
5. switch cubicle wireless temperature measurement system according to claim 1, is characterized in that,
The output terminal of described reader (30) is connected with the display module (40) for data display.
6. switch cubicle wireless temperature measurement system according to claim 5, is characterized in that,
The output terminal of described reader (30) is connected with the alarm module for temperature alarming.
7., according to the arbitrary described switch cubicle wireless temperature measurement system of claim 1 to 6, it is characterized in that,
Described temperature measuring point includes but not limited to: isolation switch contact, conductive bus bar contact.
8., according to the arbitrary described switch cubicle wireless temperature measurement system of claim 1 to 6, it is characterized in that,
The temperature measuring point of same described switch cubicle (60) is multiple, and each described temperature measuring point is a corresponding described temperature probe (10) respectively.
9. switch cubicle wireless temperature measurement system according to claim 8, is characterized in that,
Described reader (30) detects multiple switch cubicle (60) simultaneously, described first antenna (20) is all set in each described switch cubicle (60), described reader (30) is provided with multiple described antennal interface, and multiple described first antenna (20) is connected to described reader (30) through described antennal interface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329699.6U CN204988540U (en) | 2015-05-19 | 2015-05-19 | A switch cabinet wireless temperature -measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329699.6U CN204988540U (en) | 2015-05-19 | 2015-05-19 | A switch cabinet wireless temperature -measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988540U true CN204988540U (en) | 2016-01-20 |
Family
ID=55122898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520329699.6U Active CN204988540U (en) | 2015-05-19 | 2015-05-19 | A switch cabinet wireless temperature -measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204988540U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823565A (en) * | 2016-04-18 | 2016-08-03 | 绵阳市睿钛科技有限公司 | RFID passive sensing device used for measuring contact temperature of power switch cabinet |
| CN106969847A (en) * | 2017-05-23 | 2017-07-21 | 兰州中联电子科技有限公司 | A kind of wireless temperature measuring device for switch cabinet |
| CN107014498A (en) * | 2017-05-02 | 2017-08-04 | 广东电网有限责任公司中山供电局 | A kind of switch cabinet temperature measurement and the device of fault diagnosis |
| 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 |
| CN107884091A (en) * | 2017-12-10 | 2018-04-06 | 国家电网公司 | Wireless passive sonic surface wave monitoring device of switch cabinet temperature |
| CN113029351A (en) * | 2021-03-16 | 2021-06-25 | 贵州电网有限责任公司 | Switch cabinet internal temperature measuring sensor with adjustable direction |
-
2015
- 2015-05-19 CN CN201520329699.6U patent/CN204988540U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823565A (en) * | 2016-04-18 | 2016-08-03 | 绵阳市睿钛科技有限公司 | RFID passive sensing device used for measuring contact temperature of power switch cabinet |
| 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 |
| CN107014498A (en) * | 2017-05-02 | 2017-08-04 | 广东电网有限责任公司中山供电局 | A kind of switch cabinet temperature measurement and the device of fault diagnosis |
| CN106969847A (en) * | 2017-05-23 | 2017-07-21 | 兰州中联电子科技有限公司 | A kind of wireless temperature measuring device for switch cabinet |
| CN107884091A (en) * | 2017-12-10 | 2018-04-06 | 国家电网公司 | Wireless passive sonic surface wave monitoring device of switch cabinet temperature |
| CN113029351A (en) * | 2021-03-16 | 2021-06-25 | 贵州电网有限责任公司 | Switch cabinet internal temperature measuring sensor with adjustable direction |
| CN113029351B (en) * | 2021-03-16 | 2022-04-08 | 贵州电网有限责任公司 | Switch cabinet internal temperature measuring sensor with adjustable direction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204988540U (en) | A switch cabinet wireless temperature -measuring system | |
| CN202631151U (en) | Powerless and wireless online monitoring system for temperature of switch cabinet | |
| CN103076105B (en) | Passive wireless temperature sensor | |
| CN206430821U (en) | A kind of passive and wireless temperature measurement system applied to HV cable accessories | |
| CN209513092U (en) | A kind of cable temperature measuring equipment and cable temp measuring system based on Internet of Things | |
| CN103557955A (en) | Passive wireless temperature sensor | |
| CN110095203A (en) | A kind of temperature of cable junction remote supervision system and its method based on NB-IoT | |
| CN203551139U (en) | Transformer station device contact temperature on-line monitoring device | |
| CN103557957A (en) | Device for online monitoring temperature of contact of substation equipment | |
| CN208765855U (en) | A kind of passive and wireless temperature transducer | |
| CN202651537U (en) | Cable plug with temperature detection | |
| CN105509927A (en) | Substation temperature measuring method and system | |
| CN203551140U (en) | Passive wireless temperature sensor | |
| CN206648754U (en) | A kind of HV cable accessories for including passive wireless temperature sensor | |
| CN110736563A (en) | Passive wireless temperature sensor suitable for distribution temperature monitoring early warning system | |
| CN205049257U (en) | High tension switchgear's temperature monitoring system | |
| CN106352916A (en) | Switch cabinet temperature online detection device | |
| CN106248244A (en) | A kind of passive and wireless real time temperature monitoring system | |
| CN102768081A (en) | Passive wireless temperature measuring system for capacitors of transformer substation | |
| CN202614392U (en) | Transformer substation equipment monitoring device based on passive wireless sensing technology | |
| CN204242381U (en) | Based on the high voltage electric equipment monitoring-temperature alarm system of ZigBee technology | |
| CN203053591U (en) | A passive wireless temperature sensor | |
| CN202195898U (en) | Fiber type temperature on-line monitoring device used for high voltage switch cabinet | |
| CN209559362U (en) | Wireless temperature measuring device built in a kind of cable connector | |
| CN204679168U (en) | GIS infrared measurement of temperature sensing terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |