CN202793608U - Mining temperature sensor - Google Patents
Mining temperature sensor Download PDFInfo
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- CN202793608U CN202793608U CN201220346290.1U CN201220346290U CN202793608U CN 202793608 U CN202793608 U CN 202793608U CN 201220346290 U CN201220346290 U CN 201220346290U CN 202793608 U CN202793608 U CN 202793608U
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- temperature sensor
- chip microcomputer
- mining
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Abstract
The utility model relates to a mining temperature sensor comprising a power supply circuit, a temperature sensor, an infrared receiving circuit, a nixie tube and drive circuit, a storage circuit, a one-chip microcomputer, a communication interface circuit and the like, wherein the power supply circuit provides stable direct current working power supply; the one-chip microcomputer is respectively connected with the temperature sensor, the infrared receiving circuit, the nixie tube and drive circuit, the storage circuit and the communication interface circuit; the temperature data is displayed through the nixie tube; and the transmission of the temperature data can be selected in 3 modes, respectively a CAN communication mode, a serial port communication mode and a frequency output mode. The mining temperature sensor has the advantages of having high precision, high stability and low power consumption, and being flexible and changeable in communication mode, and can perform calibration and standardization of the sensor.
Description
Technical field
The utility model relates to the sensor in a kind of temperature survey field, particularly the thermometric sensor of a kind of mine underground.
Background technology
Temperature is a kind of basic environmental parameter, and its measurement is more typically to use in the industrial processes, and measuring method and the device of therefore studying temperature have great importance.At present, the sensitive element of existing colliery Temperature Transducer in Common Use mainly contains all kinds of thermal resistances, thermopair, semiconductor heat dependent sensor etc., its output signal has non-linear, the shortcoming such as exist that precision is low, measuring error is large, job insecurity, poor reliability, serviceable life are short, and with the simplification of external communication interface form.
Summary of the invention
The technical deficiency that the utility model exists for existing product, and a kind of mining scene temperature temperature sensor that gather, that communication modes is flexible and changeable that is applicable to of developing is comprised of power circuit, temperature sensor, infrared receiving circuit, charactron and driving circuit, memory circuit, single-chip microcomputer, communication interface circuit etc.The technological means that the utility model adopts is as follows: power circuit is comprised of reduction voltage circuit and low-dropout linear voltage-regulating circuit, for sensor provides stable dc supply.Temperature sensor chip is the ambient temperature collection, and by the unibus mode data passed to single-chip microcomputer.After single-chip microcomputer is processed data, send by the charactron demonstration and via communication interface circuit.Three kinds of communication interface circuits are respectively the serial port circuit of CAN transceiver circuit, light-coupled isolation and the frequency signal output circuit of light-coupled isolation, and the passage of data transmission is provided for sensor.The infrared interface circuit is comprised of infrared receiving terminal, receives the signal of Infrared remote controller, finishes calibration and the demarcation of sensor.Memory circuit is comprised of ferroelectric memory, the parameters in storage sensor demarcation and the calibration process.
The utlity model has high precision, high stability, low-power consumption, the flexible and changeable characteristics of communication modes, and can carry out by outside Infrared remote controller calibration and the demarcation of sensor.
Further technical characterictic, described single-chip microcomputer is selected STM F103VCT6.
Described temperature sensor chip is selected DS18B20.
Described CAN transceiver is selected CTM8251T.
Described infrared receiving terminal is selected IRM338.
Described storer is selected FM24C02.
Described communication interface circuit is selected the serial communication mode of CAN communication modes, light-coupled isolation, the frequency way of output of light-coupled isolation.
The beneficial effects of the utility model are: have the characteristics such as high precision, high stability, low-power consumption, calibration convenience, and communication modes is flexible and changeable.
Description of drawings
Fig. 1 is block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model (one).
Fig. 3 is circuit theory diagrams of the present utility model (two).
Fig. 4 is the scm software process flow diagram.
Embodiment
The utility model circuit block diagram comprises power circuit 1, temperature sensor 2, infrared receiving circuit 3, charactron and driving circuit 4, memory circuit 5, CAN communication interface circuit 6, serial interface circuit 7, frequency signal output interface circuit 8, single-chip microcomputer 9 as shown in Figure 1.
After adding the 18V DC voltage by external interface, export the 3.3V DC voltage through reduction voltage circuit and low-dropout linear voltage-regulating circuit, temperature sensor is started working.Monolithic processor resetting, the crystal oscillator starting of oscillation makes it be in ready state.Temperature sensor gathers after the ambient temperature data, changes it into digital signal, passes to single-chip microcomputer by the unibus mode.Single-chip microcomputer circle collection temperature data carries out data conversion treatment after receiving temperature data, send into charactron and show, and data communication device is crossed three kinds of communication interface circuits send.
The utility model circuit theory diagrams such as Fig. 2, shown in Figure 3,1 pin and 2 pin of external dc power positive pole and negative pole access CON1 terminal, 18V voltage is input on 6 pin of step-down chip U1 through anti-reverse diode D1, after processing by the U1 step-down, and the 2 pin output 5V DC voltage of U1.This voltage is through entering into 3 pin of low pressure difference linearity voltage stabilizing chip U2 after the filtering, 2 pin of U2 are exported the 3.3V DC voltage, and temperature sensor is started working.
In the temperature survey process, after temperature sensor chip U3 successfully gathers the ambient temperature data, the digital signal of the 2 pin output temperatures of U3, this pin is connected to 30 pin of single-chip microcomputer U5.After single-chip microcomputer obtained temperature, advanced row data were processed, and then send into Nixie tube drive circuit U10 by serial communication, show in real time.
In the temperature data process of transmitting, at first U5 sends data into CAN isolation transceiver U7 by signal wire CANH, CANL, and U7 sends to data on the CAN bus.Next U5 sends temperature data into 2 pin of optocoupler U8 by signal wire USART1_TX, and U8 sends to data on the universal serial bus.At last, U5 is transformed into the frequency signal that is directly proportional with it with temperature data, and U9 sends it by optocoupler.
In sensor calibration processes, infrared receiving terminal U4 receives the key assignments of Infrared remote controller, the key assignments of the 3 pin output Infrared remote controller of U4, and this pin is connected to 48 pin of U5.48 pin of U5 receive after the key assignments, enter in the serial ports interrupt service routine, carry out corresponding calibration operation, simultaneously data are stored among the ferroelectric memory U6.
The utlity model has high precision, high stability, low-power consumption, the flexible and changeable characteristics of communication modes, and can carry out by Infrared remote controller calibration and the demarcation of sensor.
Claims (7)
1. a mining temperature sensor is characterized in that: comprise power circuit, temperature sensor, infrared receiving circuit, charactron and driving circuit, memory circuit, single-chip microcomputer and communication interface circuit; Power circuit is comprised of reduction voltage circuit and low-dropout linear voltage-regulating circuit, for sensor provides stable dc supply; Temperature sensor chip is the ambient temperature collection, and by the unibus mode data passed to single-chip microcomputer; After single-chip microcomputer is processed data, send by the charactron demonstration and via communication interface circuit; The communication interface circuit of three kinds of forms is respectively the serial port circuit of CAN transceiver circuit, light-coupled isolation and the frequency signal output circuit of light-coupled isolation, and the passage of data transmission is provided for sensor; The infrared interface circuit is comprised of infrared receiving terminal, receives the signal of Infrared remote controller, finishes calibration and the demarcation of sensor; Memory circuit is comprised of ferroelectric memory, the parameters in storage sensor calibration and the calibration process.
2. mining temperature sensor according to claim 1, it is characterized in that: described single-chip microcomputer is selected STMF103VCT6.
3. mining temperature sensor according to claim 1, it is characterized in that: described temperature sensor chip is selected DS18B20.
4. mining temperature sensor according to claim 1, it is characterized in that: described CAN transceiver is selected CTM8251T.
5. mining temperature sensor according to claim 1, it is characterized in that: described infrared receiving terminal is selected IRM338.
6. mining temperature sensor according to claim 1, it is characterized in that: described storer is selected FM24C02.
7. mining temperature sensor according to claim 1, it is characterized in that: described communication interface circuit is selected the serial communication mode of CAN communication modes, light-coupled isolation, the frequency way of output of light-coupled isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220346290.1U CN202793608U (en) | 2012-07-18 | 2012-07-18 | Mining temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220346290.1U CN202793608U (en) | 2012-07-18 | 2012-07-18 | Mining temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793608U true CN202793608U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220346290.1U Expired - Fee Related CN202793608U (en) | 2012-07-18 | 2012-07-18 | Mining temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN106768036A (en) * | 2016-12-10 | 2017-05-31 | 哈尔滨工业大学 | Adjustable agricultural Temperature Humidity Sensor with infrared receiver |
-
2012
- 2012-07-18 CN CN201220346290.1U patent/CN202793608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN106768036A (en) * | 2016-12-10 | 2017-05-31 | 哈尔滨工业大学 | Adjustable agricultural Temperature Humidity Sensor with infrared receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130718 |