CN204831613U - Wireless temperature sensor - Google Patents
Wireless temperature sensor Download PDFInfo
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- CN204831613U CN204831613U CN201520613828.4U CN201520613828U CN204831613U CN 204831613 U CN204831613 U CN 204831613U CN 201520613828 U CN201520613828 U CN 201520613828U CN 204831613 U CN204831613 U CN 204831613U
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Abstract
The utility model discloses a wireless temperature sensor mainly comprises integrated induction electricity -taking unit, microprocessing unit and the temperature data collection unit that sets up on same printed circuit board, the induction electricity -taking unit is connected with microprocessing unit and temperature data collection unit electricity respectively, and microprocessing unit passes through communication bus with the temperature data collection unit and is connected, the induction electricity -taking unit is including induction electricity -taking circuit, rectification filter circuit, voltage detection circuit and the voltage stabilizing circuit of head and the tail electricity connection in proper order, microprocessing unit adopts the CC430 chip, for the wireless singlechip of low -power consumption, reads temperature data and sends to the monitor control center through the circuit. The utility model discloses circuit structure reasonable in design, integrated level are high, with low costs, small, low -power consumption, installation are used and is maintained conveniently, are that an on line measurement precision is high, emission efficiency is high, work safe and reliable's wireless temperature sensor.
Description
Technical field
The utility model relates to temperature monitor and control field, is specifically related to a kind of high-tension switch cabinet sensing equipment, especially relates to a kind of radio temperature sensor.
Background technology
Along with industrial boom, civilian electricity constantly rises, high voltage substation load constantly increases the weight of, on the equipment of high-voltage great-current, because the reasons such as artificial or ageing equipment make contact temperature rise in cable, high-tension switch cabinet too high, and do not monitor in real time, cause that equipment is badly damaged, Frequent Accidents, cause shut-down, stopping production, production equipment to damage, cause direct economic loss, even jeopardize people's life safety.Therefore high-tension switch cabinet inner cable contact temperature is effectively monitored, effectively can prevent the generation of this type of accident.But due to switch cubicle be totally-enclosed operation, the various and bad environments of measured positional structure, in-cabinet temperature of cannot manually patrolling, therefore needs a kind of temperature of high-tension switch cabinet monitoring equipment to monitor it.Have all kinds of monitoring system in prior art, have and adopt infrared measurement of temperature, fiber grating and distributed optical fiber temperature measurement to carry out temperature survey, infrared temperature sensor does not directly contact with tested pilot, and dielectric voltage withstand performance is high.But there is strict requirement to installing space, enough safe distances must be ensured, otherwise sensor is more fragile.Optical fiber grating temperature-measuring and distributed optical fiber temperature measurement need optical fiber to be arranged on point being monitored, should note during installation keeping optical fiber in normal bending radius, and optical fiber is in installation process, need professional equipment to carry out welding, the quality of welding directly affects the laser propagation effect of light.Therefore lay with installation process in higher to construction process requirement.In operation maintenance, because optical fiber is imbedded in underground or cable duct, maintenance workload is larger.Also the temperature sensor be arranged in switch cubicle is had, mostly transmit temperature data by wired mode, temperature sensor not only needs additionally to power, power consumption is large, and wired communication mode its stability and security deficiency under the rugged surroundings such as high pressure, high humidity, be difficult to realize real-time online temperature detection.The patent No. is 201210122418.0, and denomination of invention is the patent of invention of " radio temperature sensor ", comprises temperature collect module, microprocessor module, wireless communication module and the supply module for whole sensor power.Although this invention has spontaneous electrical function, and communication is adopted to carry out temperature survey.But the shortcoming that this invention still exists, and circuit structure complexity, cost are high, volume is comparatively large, power consumption is higher.
Utility model content
The purpose of this utility model is to overcome the deficiency in existing radio temperature sensor technology, there is provided " a kind of radio temperature sensor ", the utility model circuit structure design is reasonable, integrated level is high, cost is low, volume is little, low-power consumption, easy to install, that a kind of on-line measurement precision is high, the radio temperature sensor that emission efficiency is high.
For achieving the above object, the utility model is achieved through the following technical solutions, main technical scheme is, a kind of radio temperature sensor, primarily of induction power taking unit, microprocessing unit and the temperature collecting cell composition be integrated on same printed circuit board (PCB), described induction power taking unit is electrically connected with microprocessing unit and temperature collecting cell respectively, and microprocessing unit and temperature collecting cell pass through I
2c bus connects, described induction power taking unit comprises induction power-supply circuit, current rectifying and wave filtering circuit, voltage detecting circuit and the mu balanced circuit that head and the tail are successively electrically connected, described microprocessing unit adopts CC430 chip, for low-consumption wireless single-chip microcomputer, reading temperature data is sent to Monitoring and Controlling center through circuit.
Further technical scheme is; described induction power-supply circuit is made up of with the voltage clamping protection circuit be connected that is in parallel with it inductive coil members; described inductive coil members is made up of magnet ring and inductive coil, and described voltage clamping protection circuit is made up of electric capacity C01 and voltage stabilizing diode D1, D2.
Further technical scheme is, described current rectifying and wave filtering circuit is made up of with electric capacity C02, the C03 be connected that be in parallel with it rectifier bridge, and rectifier bridge and electric capacity C02 form voltage raise circuit structure, and described rectifier bridge adopts MB6S chip, is full bridge circuit structure.
Further technical scheme is, described voltage detecting circuit adopts ME2802 chip, and its output signal connects mu balanced circuit Enable Pin.
Further technical scheme is, described mu balanced circuit adopts CAT6219 chip, and connects shunt capacitance C04, C05 to reduce noise, and its Enable Pin is controlled by voltage detecting output terminal.
Further technical scheme is, described temperature collecting cell adopts ADT7410 sensor chip.
Further technical scheme is, its material used of described magnet ring is thin film alloys material.
Principle and the reason of a kind of radio temperature sensor of the utility model circuit design are as follows:
Be made up of the integrated induction power taking unit be arranged on same printed circuit board (PCB), microprocessing unit, temperature collecting cell.Integrated level is high, and rationally distributed, compact, volume is little.
Induction power taking unit comprises induction power-supply circuit, current rectifying and wave filtering circuit, voltage detecting circuit and mu balanced circuit.To realize stable, safety, reliability that the utility model self powered supply is powered.
Induction power-supply circuit is made up of with the voltage clamping protection circuit be connected that is in parallel with it inductive coil members, and described inductive coil members is made up of magnet ring and inductive coil, and described voltage clamping protection circuit is made up of electric capacity C01 and voltage stabilizing diode D1, D2.Its material used of magnet ring is thin film alloys material, and use its energy conversion efficiency of this circuit structure high, voltage clamping is at below 10V.
Its rectifier bridge of current rectifying and wave filtering circuit adopts MB6S chip, small size, installs simple, has high surge currents ability, can reach 600V0.5A.
Voltage detecting circuit adopts ME2802 chip, high precision: ± 1%, low-power consumption: TYP0.7 microampere.Detect front-end circuit and should export 5-6V voltage.
Mu balanced circuit adopts CAT6219 chip, and connects shunt capacitance C04, C05 to reduce noise.CAT6219 chip is CMOS low-dropout regulator, has Fast Starting, working stability, and volume is little, is the voltage regulator circuit structure of the utility model adaptation.
Temperature collecting cell adopts ADT7410 sensor chip, can turn off, low-power consumption, high precision: ± 0.5 DEG C, working range is wide: temperature range :-55 DEG C to 150 DEG C, voltage range: 2.7V to 5.5V, use this circuit structure temperature acquisition precision high, Survey control is accurate.
Microprocessing unit adopts CC430 chip, microampere order low-power consumption, high-performance, the maximum 32mA of transmitter current, be integrated with 8 430 single-chip microcomputer kernels and wireless transceivers, use that this circuit structure data processing speed is fast, precision is high, transmission signal is strong, effectively improves and guarantees functional reliability and the accuracy at temperature monitor and control center.
The utility model tool compared with existing radio temperature sensor has the following advantages:
1. the utility model circuit structure design is reasonable, integrated level is high, cost is low, volume is little, low-power consumption, easy to install, be that a kind of on-line measurement precision is high, the radio temperature sensor that emission efficiency is high.
2. because the utility model is made up of the integrated induction power taking unit be arranged on same printed circuit board (PCB), microprocessing unit, temperature collecting cell.Integrated level is high, and rationally distributed, compact, volume is little.
3. the selection of circuit structure, chip and material designed by the utility model, printed board circuit cell position arrange decision, the utility model cost is low, volume is little, low-power consumption, be that a kind of on-line measurement precision is high, emission efficiency is high, the reliable radio temperature sensor of working stability.Adopt the utility model design circuit structure institute to implement product and effectively can improve the reliability and accuracy that control high-tension switch cabinet bus and contact temperature monitoring, elimination high-voltage great-current equipment is badly damaged, Frequent Accidents hidden danger.
Accompanying drawing explanation
Fig. 1 is syndeton block diagram of the present utility model.
Fig. 2 is the electric principle block diagram of induction power taking unit of the present utility model.
Fig. 3 is microprocessing unit of the present utility model electricity principle block diagram.
Fig. 4 is temperature collecting cell of the present utility model electricity principle block diagram.
Embodiment
Below in conjunction with accompanying drawing, by non-limiting example, the utility model is described in further detail.
Embodiment
This radio temperature sensor as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of radio temperature sensor, primarily of the integrated induction power taking unit be arranged on same printed circuit board (PCB), microprocessing unit, temperature collecting cell composition, described induction power taking unit is electrically connected with microprocessing unit and temperature collecting cell respectively, and microprocessing unit and temperature collecting cell pass through I
2c bus connects, described induction power taking unit comprises induction power-supply circuit, current rectifying and wave filtering circuit, voltage detecting circuit and the mu balanced circuit that head and the tail are successively electrically connected, described microprocessing unit adopts CC430 chip, and reading temperature data is sent to Monitoring and Controlling center through circuit.
Described induction power-supply circuit is made up of with the voltage clamping protection circuit be connected that is in parallel with it inductive coil members, and described inductive coil members is made up of magnet ring and inductive coil, and described voltage clamping protection circuit is made up of electric capacity C01 and voltage stabilizing diode D1, D2.Its material used of described magnet ring is thin film alloys material.The number of turn set by inductive coil and wire diameter set according to required energy conversion rate.
Described current rectifying and wave filtering circuit is made up of with electric capacity C02, the C03 be connected that be in parallel with it rectifier bridge, and rectifier bridge and electric capacity C02 form voltage raise circuit structure, and described rectifier bridge adopts MB6S chip, is full bridge circuit structure.
Described voltage detecting circuit adopts ME2802 chip, and its output signal connects mu balanced circuit Enable Pin.
Described mu balanced circuit adopts CAT6219 chip, and connects shunt capacitance C04, C05 to reduce noise, and its Enable Pin is controlled by voltage detecting output terminal.
Described temperature collecting cell adopts ADT7410 sensor chip.
In circuit, main each device all can be bought in market.
Printed circuit board (PCB) adopts routine techniques to make.The utility model is placed in closure.
Inductive coil and emitting antenna need keep certain distance to arrange.
Emitting antenna peripheral circuits is not covered same.
Enable Pin described in the utility model is control signal input end, is an input port of circuit.
The utility model adopts the bus of thin film alloys band and high-tension switch cabinet and moving contact to tie up to be connected.Can arrange by multiple spot simultaneously.
In sum, the utility model circuit structure design is reasonable, integrated level is high, cost is low, volume is little, low-power consumption, installation applicating maintenance are convenient, is the radio temperature sensor that a kind of on-line measurement precision is high, emission efficiency is high, safe and reliable.
Claims (7)
1. a radio temperature sensor, it is characterized in that, primarily of induction power taking unit, microprocessing unit and the temperature collecting cell composition be integrated on same printed circuit board (PCB), described induction power taking unit is electrically connected with microprocessing unit and temperature collecting cell respectively, and microprocessing unit and temperature collecting cell pass through I
2c bus connects, described induction power taking unit comprises induction power-supply circuit, current rectifying and wave filtering circuit, voltage detecting circuit and the mu balanced circuit that head and the tail are successively electrically connected, described microprocessing unit adopts CC430 chip, and reading temperature data is sent to Monitoring and Controlling center through radio-circuit.
2. a kind of radio temperature sensor according to claim 1; it is characterized in that; described induction power-supply circuit is made up of with the voltage clamping protection circuit be connected that is in parallel with it inductive coil members; described inductive coil members is made up of magnet ring and inductive coil, and described voltage clamping protection circuit is made up of electric capacity C01 and voltage stabilizing diode D1, D2.
3. a kind of radio temperature sensor according to claim 1, it is characterized in that, described current rectifying and wave filtering circuit is made up of with electric capacity C02, the C03 be connected that be in parallel with it rectifier bridge, rectifier bridge and electric capacity C02 form voltage raise circuit structure, described rectifier bridge adopts MB6S chip, is full bridge circuit structure.
4. a kind of radio temperature sensor according to claim 1, is characterized in that, described voltage detecting circuit adopts ME2802 chip, and its output signal connects mu balanced circuit Enable Pin.
5. a kind of radio temperature sensor according to claim 1, is characterized in that, described mu balanced circuit adopts CAT6219 chip, and connects shunt capacitance C04, C05 to reduce noise, and its Enable Pin is controlled by voltage detecting output terminal.
6. a kind of radio temperature sensor according to claim 1, is characterized in that, described temperature collecting cell adopts ADT7410 sensor chip.
7. a kind of radio temperature sensor according to claim 2, is characterized in that, its material used of described magnet ring is thin film alloys material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613828.4U CN204831613U (en) | 2015-08-14 | 2015-08-14 | Wireless temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613828.4U CN204831613U (en) | 2015-08-14 | 2015-08-14 | Wireless temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204831613U true CN204831613U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613828.4U Expired - Fee Related CN204831613U (en) | 2015-08-14 | 2015-08-14 | Wireless temperature sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181168A (en) * | 2015-08-14 | 2015-12-23 | 泰州斯贝勒电气科技有限公司 | Wireless temperature sensor |
| CN108051091A (en) * | 2017-11-10 | 2018-05-18 | 安徽徽远成电气科技股份有限公司 | A kind of infrared temperature probe system |
| CN111207845A (en) * | 2019-12-03 | 2020-05-29 | 贵州电网有限责任公司 | Wireless temperature on-line monitoring and early warning system |
| CN114509172A (en) * | 2022-02-14 | 2022-05-17 | 贵州电网有限责任公司 | Passive temperature sensor system and temperature calculation method |
-
2015
- 2015-08-14 CN CN201520613828.4U patent/CN204831613U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181168A (en) * | 2015-08-14 | 2015-12-23 | 泰州斯贝勒电气科技有限公司 | Wireless temperature sensor |
| CN108051091A (en) * | 2017-11-10 | 2018-05-18 | 安徽徽远成电气科技股份有限公司 | A kind of infrared temperature probe system |
| CN111207845A (en) * | 2019-12-03 | 2020-05-29 | 贵州电网有限责任公司 | Wireless temperature on-line monitoring and early warning system |
| CN114509172A (en) * | 2022-02-14 | 2022-05-17 | 贵州电网有限责任公司 | Passive temperature sensor system and temperature calculation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xue Jian Inventor before: Bai Jian |
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| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |