CN102778307A - High voltage point temperature measurement system based on wireless power source - Google Patents
High voltage point temperature measurement system based on wireless power source Download PDFInfo
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- CN102778307A CN102778307A CN2011101193313A CN201110119331A CN102778307A CN 102778307 A CN102778307 A CN 102778307A CN 2011101193313 A CN2011101193313 A CN 2011101193313A CN 201110119331 A CN201110119331 A CN 201110119331A CN 102778307 A CN102778307 A CN 102778307A
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- high voltage
- voltage point
- circuit
- point temperature
- temperature measurement
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Abstract
The invention relates to a high voltage point temperature measurement system based on a wireless power source. The high voltage point temperature measurement system based on the wireless power source comprises a high voltage point temperature measurement unit and a low voltage side control unit. The high voltage point temperature measurement unit is connected with the low voltage side control unit. The high voltage point temperature measurement unit comprises an induction coil, an energy collection and temporary storage module, a first microprogrammed control unit (MCU), a temperature measuring circuit, a temperature sensor, a first radio frequency (RF) transceiver and a first RF antenna. The low voltage side control unit comprises a transmitting coil, a square wave generation and power amplification circuit, a second MCU, a power conversion circuit, a human-computer interface, a communication interface circuit, a second RF transceiver and a second RF antenna. Compared with the prior art, the high voltage point temperature measurement system based on the wireless power source has the advantages of being convenient to install, free of maintenance, safe to operate and the like.
Description
Technical field
The present invention relates to a kind of high voltage point temp measuring system, especially relate to a kind of high voltage point temp measuring system based on radio source.
Background technology
In electric system, comprise on a plurality of links of generating, power transformation, transmission of electricity, often need put enterprising trip temperature monitoring to high-voltage large currents such as transformer and distribution power station bus, copper bar, transmission line of electricity and joints.Because high voltage point must guarantee can't be connected with the equipment that with the civil power is power supply through lead the insulating property of outside other equipment, high voltage is pressed its electric pressure must guarantee enough dielectric levels.So there is the difficulty of two aspects in its temperature monitoring: 1. data communication problem; 2. the power issue of temperature sensor and monitoring means interlock circuit.Prior art has solved previous problem through optical-fibre communications or RF digital communication, but still not well solution of power issue is general only with the power supply of battery as monitoring means.Battery is done the monitoring power supply, and to do big defective be every just must change at a distance from some months, increased maintenance workload greatly, so generally be confined to the monitoring of key point temperature, for the bigger 10KV distribution substation of quantity, seems impracticable.Be the temperature measuring unit of power supply with the battery simultaneously, be generally the reduction average power consumption, generally be designed to the timing dormancy pattern, host computer or user can't control it fully and start the thermometric program.
Summary of the invention
The object of the invention is exactly the high voltage point temp measuring system based on radio source that a kind of easy for installation, non-maintaining, security of operation is provided in order to overcome the defective that above-mentioned prior art exists.
The object of the invention can be realized through following technical scheme:
A kind of high voltage point temp measuring system based on radio source is characterized in that, comprises high voltage point temperature measuring unit, low-pressure side control module, and described high voltage point temperature measuring unit is connected with the low-pressure side control module.
Described high voltage point temperature measuring unit comprises inductive coil, energy acquisition and temporary module, a MCU, temperature measurement circuit, temperature sensor, a RF transceiver, a RF antenna; Described inductive coil is connected with energy acquisition and temporary module; A described MCU is connected with energy acquisition and temporary module, temperature measurement circuit, a RF transceiver respectively; Described temperature measurement circuit is connected with temperature sensor, and a described RF transceiver is connected with a RF antenna.
Described energy acquisition and temporary module comprise rectification circuit, DC/DC change-over circuit, the temporary element of electric flux; Described rectification circuit input end is connected with inductive coil; Output terminal is connected with the input end of DC/DC change-over circuit, and described DC/DC change-over circuit output terminal is connected with a MCU; Temporary element one end of described electric flux is connected between rectification circuit, the DC/DC change-over circuit other end ground connection.
The temporary element of described electric flux is super capacitor or rechargeable battery.
Described low-pressure side control module comprises transmitting coil, square wave generation and power amplification circuit, the 2nd MCU, power-switching circuit, man-machine interface, communication interface circuit, the 2nd RF transceiver, the 2nd RF antenna; Described transmitting coil takes place with square wave and power amplification circuit is connected; Described the 2nd MCU is connected with square wave generation and power amplification circuit, power-switching circuit, man-machine interface, communication interface circuit, the 2nd RF transceiver respectively; Described the 2nd RF transceiver is connected with the 2nd RF antenna; The inductive coil of described transmitting coil and high voltage point temperature measuring unit is of coupled connections, and described the 2nd RF antenna passes through radio frequency network and is connected with a RF antenna of high voltage point temperature measuring unit.
Described square wave takes place and power amplification circuit comprises square-wave generator, power amplifier, and described square-wave generator is connected with power amplifier.
Described power-switching circuit is AC/DC change-over circuit or DC/DC change-over circuit.
Compared with prior art, the present invention has the following advantages:
1) easy for installation, non-maintaining, security of operation; Data and power supply all are to transmit through wireless mode, need not to consider laying or battery altering of communication optical fiber, and high voltage point is gone up to change under a lot of situation of battery needs the power failure operation, very inconvenience; Real wireless mode has also increased substantially the security of system's operation.
2) thermometric controllable process property significantly improves, and has controlled characteristics fully; The prior art temperature measuring unit considers that with battery reduction average power consumption, the mode of operated by rotary motion timing dormancy, host computer can't realize the instant control to temperature measuring unit during as power supply; Temp measuring system of the present invention is launched electromagnetic radiation at any time through the low-pressure side control module and is started the thermometric process, reaches controlled state fully.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of high voltage point temperature measuring unit of the present invention;
Fig. 3 is the structural representation of low-pressure side control module of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
As shown in Figure 1, a kind of high voltage point temp measuring system based on radio source comprises high voltage point temperature measuring unit 1, low-pressure side control module 2, and described high voltage point temperature measuring unit 1 is connected with low-pressure side control module 2.
As shown in Figure 2; Described high voltage point temperature measuring unit 1 comprises inductive coil 11, energy acquisition and temporary module 12, a MCU13, temperature measurement circuit 14, temperature sensor 16, a RF transceiver 15, a RF antenna 17; Described inductive coil 11 is connected with energy acquisition and temporary module 12; A described MCU13 is connected with energy acquisition and temporary module 12, temperature measurement circuit 14, a RF transceiver 15 respectively; Described temperature measurement circuit 14 is connected with temperature sensor 16, and a described RF transceiver 15 is connected with a RF antenna 17.Described energy acquisition and temporary module 12 comprise rectification circuit 121, DC/DC change-over circuit 122, the temporary element 123 of electric flux; Described rectification circuit 121 input ends are connected with inductive coil 11; Output terminal is connected with the input end of DC/DC change-over circuit 122, and described DC/DC change-over circuit 122 output terminals are connected with a MCU13; Temporary element 123 1 ends of described electric flux are connected between rectification circuit 121, the DC/DC change-over circuit 122 other end ground connection.The temporary element 123 of described electric flux is super capacitor or rechargeable battery.
As shown in Figure 3; Described low-pressure side control module 2 comprises that transmitting coil 21, square wave take place and power amplification circuit 22, the 2nd MCU23, power-switching circuit 24, man-machine interface 26, communication interface circuit 25, the 2nd RF transceiver 27, the 2nd RF antenna 28; Described transmitting coil 21 takes place with square wave and power amplification circuit 22 is connected; Described the 2nd MCU23 takes place with square wave respectively and power amplification circuit 22, power-switching circuit 22, man-machine interface 26, communication interface circuit 25, the 2nd RF transceiver 27 are connected; Described the 2nd RF transceiver 27 is connected with the 2nd RF antenna 28; Described transmitting coil 21 is of coupled connections with the inductive coil 11 of high voltage point temperature measuring unit 1, and described the 2nd RF antenna 28 passes through radio frequency network and is connected with a RF antenna 17 of high voltage point temperature measuring unit 1.Described square wave takes place and power amplification circuit 22 comprises square-wave generator, power amplifier, and described square-wave generator is connected with power amplifier.Described power-switching circuit 24 is AC/DC change-over circuit or DC/DC change-over circuit.Man-machine interface 26 can comprise LCD and a keypad, and communication interface requires to be designed to fieldbus such as Ethernet interface, RS485 bus or CAN according to host computer.
Described high voltage point temperature measuring unit 1 is installed on the isopotential point of measured points such as bus, copper bar, transmission line of electricity joint, and wherein temperature sensor is close to the measured point.
Described low-pressure side control module 2 is installed in non-high voltage point, apart from the nearest place of high voltage point temperature measuring unit 1, is power supply with mains ac power supply, direct supply or UPS.According to the erecting stage situation, low-pressure side control module 2 and high voltage point temperature measuring unit 1 can be one to one, also can one-to-many, i.e. system of a control module and a plurality of temperature measuring unit composition.
Described low-pressure side control module 2; Receive the thermometric instruction of user or host computer through man-machine interface or communication interface after; The inner square wave that produces 100kHz-200kHz through driving transmitting coil after the power amplification circuit amplification, produces the electromagnetic radiation of certain power.Inductive coil 11 in the described temperature measuring unit produces the induction electromotive force of faint same frequency, through energy acquisition and buffering circuit faint electricity collection is kept in element (super capacitor or low capacity rechargeable battery) in electric flux.When charging voltage surpasses thresholding; Can satisfy temperature measuring unit one whole thermometric and communication work; Electronic switch is opened; The inner super low-power consumption MCU of temperature measuring unit begins to start and from the temperature sensor reading temperature data, beams back temperature data through a low-power consumption RF transceiver and a day alignment low-pressure side control module 2 then.The temporary element of the electric flux drops that powers on is subsequently closed in the temperature measuring unit power supply of all circuit except that energy collection and buffering circuit, waits for the startup of thermometric and communication process next time.
Low-pressure side control module 2 can also by setting-up time at interval (as 30 minutes) start thermometric and communication process from trend temperature measuring unit emission electromagnetic radiation.Temperature data for temperature measuring unit is returned is stored automatically, forms the historical data curve, and can carry out high temperature alarm according to the alarm threshold that the user sets, and allows the user to read all temperature measurement data from host computer through communication interface simultaneously.
Claims (7)
1. the high voltage point temp measuring system based on radio source is characterized in that, comprises high voltage point temperature measuring unit, low-pressure side control module, and described high voltage point temperature measuring unit is connected with the low-pressure side control module.
2. a kind of high voltage point temp measuring system according to claim 1 based on radio source; It is characterized in that; Described high voltage point temperature measuring unit comprises inductive coil, energy acquisition and temporary module, a MCU, temperature measurement circuit, temperature sensor, a RF transceiver, a RF antenna; Described inductive coil is connected with energy acquisition and temporary module; A described MCU is connected with energy acquisition and temporary module, temperature measurement circuit, a RF transceiver respectively, and described temperature measurement circuit is connected with temperature sensor, and a described RF transceiver is connected with a RF antenna.
3. a kind of high voltage point temp measuring system according to claim 2 based on radio source; It is characterized in that; Described energy acquisition and temporary module comprise rectification circuit, DC/DC change-over circuit, the temporary element of electric flux; Described rectification circuit input end is connected with inductive coil, and output terminal is connected with the input end of DC/DC change-over circuit, and described DC/DC change-over circuit output terminal is connected with a MCU; Temporary element one end of described electric flux is connected between rectification circuit, the DC/DC change-over circuit other end ground connection.
4. a kind of high voltage point temp measuring system based on radio source according to claim 3 is characterized in that, the temporary element of described electric flux is super capacitor or rechargeable battery.
5. a kind of high voltage point temp measuring system according to claim 1 based on radio source; It is characterized in that; Described low-pressure side control module comprises transmitting coil, square wave generation and power amplification circuit, the 2nd MCU, power-switching circuit, man-machine interface, communication interface circuit, the 2nd RF transceiver, the 2nd RF antenna; Described transmitting coil takes place with square wave and power amplification circuit is connected; Described the 2nd MCU is connected with square wave generation and power amplification circuit, power-switching circuit, man-machine interface, communication interface circuit, the 2nd RF transceiver respectively; Described the 2nd RF transceiver is connected with the 2nd RF antenna, and the inductive coil of described transmitting coil and high voltage point temperature measuring unit is of coupled connections, and described the 2nd RF antenna passes through radio frequency network and is connected with a RF antenna of high voltage point temperature measuring unit.
6. a kind of high voltage point temp measuring system based on radio source according to claim 5 is characterized in that, described square wave takes place and power amplification circuit comprises square-wave generator, power amplifier, and described square-wave generator is connected with power amplifier.
7. a kind of high voltage point temp measuring system based on radio source according to claim 5 is characterized in that described power-switching circuit is AC/DC change-over circuit or DC/DC change-over circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101193313A CN102778307A (en) | 2011-05-10 | 2011-05-10 | High voltage point temperature measurement system based on wireless power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101193313A CN102778307A (en) | 2011-05-10 | 2011-05-10 | High voltage point temperature measurement system based on wireless power source |
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| CN102778307A true CN102778307A (en) | 2012-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122004A (en) * | 2014-07-28 | 2014-10-29 | 安徽鑫辰电气设备有限公司 | Online monitoring device for temperatures of isolation contact of high-voltage distribution device |
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| CN201237537Y (en) * | 2008-07-25 | 2009-05-13 | 河南索凌电气有限公司 | Temperature sensor |
| CN101834473A (en) * | 2010-05-21 | 2010-09-15 | 西安电子科技大学 | Resonant tracking non-contact power supply device and power supply method |
| CN201732466U (en) * | 2010-06-22 | 2011-02-02 | 杭州鸿程科技有限公司 | Cable joint and lap joint wireless temperature measuring sensor |
| CN202119563U (en) * | 2011-05-10 | 2012-01-18 | 上海科能电气科技有限公司 | High-voltage point temperature measuring device based on wireless power supply |
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2011
- 2011-05-10 CN CN2011101193313A patent/CN102778307A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237537Y (en) * | 2008-07-25 | 2009-05-13 | 河南索凌电气有限公司 | Temperature sensor |
| CN101834473A (en) * | 2010-05-21 | 2010-09-15 | 西安电子科技大学 | Resonant tracking non-contact power supply device and power supply method |
| CN201732466U (en) * | 2010-06-22 | 2011-02-02 | 杭州鸿程科技有限公司 | Cable joint and lap joint wireless temperature measuring sensor |
| CN202119563U (en) * | 2011-05-10 | 2012-01-18 | 上海科能电气科技有限公司 | High-voltage point temperature measuring device based on wireless power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122004A (en) * | 2014-07-28 | 2014-10-29 | 安徽鑫辰电气设备有限公司 | Online monitoring device for temperatures of isolation contact of high-voltage distribution device |
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Application publication date: 20121114 |