CN203396513U - Carrier wave temperature sensor - Google Patents
Carrier wave temperature sensor Download PDFInfo
- Publication number
- CN203396513U CN203396513U CN201320456397.6U CN201320456397U CN203396513U CN 203396513 U CN203396513 U CN 203396513U CN 201320456397 U CN201320456397 U CN 201320456397U CN 203396513 U CN203396513 U CN 203396513U
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- temperature sensor
- carrier wave
- circuit
- microprocessor
- communication unit
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Abstract
The utility model relates to a carrier wave temperature sensor, comprising a temperature sensor probe which is connected with a PL3105 microprocessor via an anti-interface acquisition unit. The PL3105 microprocessor is connected with a carrier wave communication unit. In addition, the PL3105 microprocessor is connected with a data display and storage unit for the purpose of storage, a power unit for supplying power, and an infrared communication unit for setting parameters of the sensor. The carrier wave temperature sensor of the utility model is characterized in that power supply and transmission of control signals are realized on a pair of cables, and the sensor may be cascaded; and due to the adoption of the advanced intermediate-frequency processing and up-conversion technology in the signal emission process, the attenuation of the signal amplitude caused by the cables and the attenuation difference between difference frequencies are well compensated, the integrity and the real-time property of the data are kept, and signal distortion and error codes of control signals are not likely to occur even when the transmission distance is a few kilometers or greater.
Description
Technical field
The utility model relates to a kind of sensor.
Background technology
Tunnel monitoring is can early detection tunnel abnormal, takes precautions against fire, and avoids the generation of serious accident; By well lid electronic lock realize can well lid controlled, in control, reduce the generation of pilferage behavior, guarantee the normal operation of equipment.But current monitor mode adopts a large amount of control cables and telecommunication cable mostly, tunnel monitoring utilizes traditional approach implementation cost too expensive, has limited its popularization.If can realize transmission of video and control signal on power lead, will greatly reduce the use amount of control cables and telecommunication cable, reduced the quantities of tunnel monitoring project, thereby reduced the cost cost of tunnel monitoring project, reduced maintenance workload.
Utility model content
For above-mentioned prior art, the utility model provides a kind of carrier wave temperature sensor, for power supply, the cable type tunnel monitoring system altogether of communicating by letter provide possibility.
The utility model is achieved through the following technical solutions:
A kind of carrier wave temperature sensor, comprise temperature sensor probe, temperature sensor probe is connected with PL3105 microprocessor by anti-interference collecting unit, PL3105 microprocessor is connected with carrier communication unit, and PL3105 microprocessor is connected with for the power supply unit of the data demonstration of its storage and storage unit, power supply and it is carried out to the infrared communication unit of parameter setting.
Anti-interference collecting unit is in order to increase the resistivity of various interference to external world, adopts optocoupler NEC2501 to isolate inside and outside signal, and provides independently Power supply for external input signal.
Carrier communication unit comprises power amplification circuit, and power amplification circuit is accepted circuit by wave filter, carrier wave coupling mechanism, and carrier wave coupling mechanism is connected with low-voltage power line.Adopt the BPSK modulation demodulation system of direct sequence spread spectrum: the information that will send expands on wider frequency band with pseudo-random code sequence, synchronously receives recovery information at receiving end with same pseudo-random code sequence.The spread spectrum of carrier communication, despreading work are realized by the hardware circuit of SoC inside completely, and despreading threshold value can software adjustment.In addition, need to coordinate the circuit such as peripheral power amplification and receiving loop jointly to form the hardware components of carrier communication.
The peripheral circuit that infrared communication unit need to coordinate is comprised of transtation mission circuit and receiving circuit.The design of transtation mission circuit adopts triode 9014 to drive infrared transmitting tube TASL6200, and receiving circuit is chosen infrared receiving tube TSOP1838.Modulation of infrared rays frequency is 38kHz, by relevant register is set, enables after infrared communication, presses infrared communication stipulations transceiving data, and sensor parameters is configured.
The characteristic of the utility model sensor is that the transmission with control signal that provides of power supply has been provided on 1 pair of cable, can cascade, on a pair of line, can connect at most 128 sensors.Owing to having adopted advanced processing intermediate frequency process, up-conversion technology in signal emission process, compensated admirably cable poor to the decay between the decay of signal amplitude and different frequency, the integrality and the real-time that have kept data, in transmission range, reach several kilometers or when farther, signal is substantially undistorted, control signal is without error code.By cascade and relay transmission distance, can reach tens kilometers.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is carrier communication cellular construction schematic diagram.
Wherein, 1, temperature sensor probe; 2, anti-interference collecting unit; 3, PL3105 microprocessor; 4, carrier communication unit; 5, data show and storage unit; 6, power supply unit; 7, infrared communication unit; 8, power amplification circuit, 9, wave filter, 10, carrier wave coupling mechanism, 11, low-voltage power line, 12, accept circuit, 13, ceramic filtering wave circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of carrier wave temperature sensor, comprise temperature sensor probe, temperature sensor probe is connected with PL3105 microprocessor by anti-interference collecting unit, PL3105 microprocessor is connected with carrier communication unit, and PL3105 microprocessor is connected with for the power supply unit of the data demonstration of its storage and storage unit, power supply and it is carried out to the infrared communication unit of parameter setting.
Anti-interference collecting unit is in order to increase the resistivity of various interference to external world, adopts optocoupler NEC2501 to isolate inside and outside signal, and provides independently Power supply for external input signal.Carrier communication unit comprises power amplification circuit 8, and power amplification circuit 8 is accepted circuit 11 by wave filter 9, carrier wave coupling mechanism 10, and carrier wave coupling mechanism 10 is connected with low-voltage power line 11.Adopt the BPSK modulation demodulation system of direct sequence spread spectrum: the information that will send expands on wider frequency band with pseudo-random code sequence, synchronously receives recovery information at receiving end with same pseudo-random code sequence.The spread spectrum of carrier communication, despreading work are realized by the hardware circuit of SoC inside completely, and despreading threshold value can software adjustment.In addition, need to coordinate the circuit such as peripheral power amplification and receiving loop jointly to form the hardware components of carrier communication.The peripheral circuit that infrared communication unit need to coordinate is comprised of transtation mission circuit and receiving circuit.The design of transtation mission circuit adopts triode 9014 to drive infrared transmitting tube TASL6200, and receiving circuit is chosen infrared receiving tube TSOP1838.Modulation of infrared rays frequency is 38kHz, by relevant register is set, enables after infrared communication, presses infrared communication stipulations transceiving data, and sensor parameters is configured.
Claims (4)
1. a carrier wave temperature sensor, it is characterized in that, comprise temperature sensor probe, temperature sensor probe is connected with PL3105 microprocessor by anti-interference collecting unit, PL3105 microprocessor is connected with carrier communication unit, and PL3105 microprocessor is connected with for the power supply unit of the data demonstration of its storage and storage unit, power supply and it is carried out to the infrared communication unit of parameter setting.
2. a kind of carrier wave temperature sensor according to claim 1, is characterized in that, anti-interference collecting unit adopts optocoupler NEC2501 to isolate inside and outside signal.
3. a kind of carrier wave temperature sensor according to claim 1, is characterized in that, carrier communication unit comprises power amplification circuit, and power amplification circuit is accepted circuit by wave filter, carrier wave coupling mechanism, and carrier wave coupling mechanism is connected with low-voltage power line.
4. a kind of carrier wave temperature sensor according to claim 1, it is characterized in that, the peripheral circuit that infrared communication unit need to coordinate is comprised of transtation mission circuit and receiving circuit, the design of transtation mission circuit adopts triode 9014 to drive infrared transmitting tube TASL6200, and receiving circuit is chosen infrared receiving tube TSOP1838.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456397.6U CN203396513U (en) | 2013-07-29 | 2013-07-29 | Carrier wave temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456397.6U CN203396513U (en) | 2013-07-29 | 2013-07-29 | Carrier wave temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396513U true CN203396513U (en) | 2014-01-15 |
Family
ID=49908037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320456397.6U Expired - Lifetime CN203396513U (en) | 2013-07-29 | 2013-07-29 | Carrier wave temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396513U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719709A (en) * | 2014-12-05 | 2016-06-29 | 福建宁德核电有限公司 | Method and apparatus for detecting temperature of nuclear power containment vessel |
| CN110313852A (en) * | 2018-03-28 | 2019-10-11 | 九阳股份有限公司 | A kind of food processor |
-
2013
- 2013-07-29 CN CN201320456397.6U patent/CN203396513U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719709A (en) * | 2014-12-05 | 2016-06-29 | 福建宁德核电有限公司 | Method and apparatus for detecting temperature of nuclear power containment vessel |
| CN105719709B (en) * | 2014-12-05 | 2018-07-03 | 福建宁德核电有限公司 | A kind of method and device for detecting Nuclear Safety shell temperature |
| CN110313852A (en) * | 2018-03-28 | 2019-10-11 | 九阳股份有限公司 | A kind of food processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |