CN102353477A - Temperature sensor detection device - Google Patents
Temperature sensor detection device Download PDFInfo
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- CN102353477A CN102353477A CN2011102900063A CN201110290006A CN102353477A CN 102353477 A CN102353477 A CN 102353477A CN 2011102900063 A CN2011102900063 A CN 2011102900063A CN 201110290006 A CN201110290006 A CN 201110290006A CN 102353477 A CN102353477 A CN 102353477A
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Abstract
The invention relates to a temperature sensor detection device which comprises a temperature signal acquisition circuit and a single chip control circuit, wherein the temperature signal acquisition circuit and a relay control circuit perform bidirectional data transmission; the output signal of the temperature signal acquisition circuit is transmitted to the single chip control circuit sequentially through an analogue switch circuit, an operation amplifying circuit and an A/D (analogue/digital) data conversion circuit; the output signal of the relay control circuit is sent to the single chip control circuit; and the single chip control circuit controls the output to a display circuit, an alarm circuit and a communication circuit. In the device, an online monitoring point and an analogue temperature signal are adopted; the signal is sent to the single chip which judges the signal and sends a control signal; and the control signal is sent to PC (personal computer) through an RS485 communication bus so as to realize online detection of the PC.
Description
Technical field
The present invention relates to a kind of pick-up unit, particularly be a kind of temperature sensor detector.
Background technology
K type temperature sensor is the important detecting instrument as multimeter and temperature controller; K type temperature sensor is made up of two thermometric lines; But front end must connect the joint solder joint through specific purpose tool; If this contact is in open-circuit condition; Whole temperature sensor can not be worked, and survey instrument has controller also to be in off working state.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of temperature sensor detector is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of temperature sensor detector; Comprise temperature signal collection circuit and single chip machine controlling circuit; Said temperature signal collection circuit and control relay circuit bidirectional data transfers; The output signal of temperature signal collection circuit transfers to single chip machine controlling circuit through analog switching circuit, operational amplification circuit, A/D data converting circuit successively; The output signal of control relay circuit sends to single chip machine controlling circuit, and single chip machine controlling circuit control exports display circuit, warning circuit, telecommunication circuit to.
Said temperature signal collection circuit connects resistance R 1, R2, R3 by the output terminal of K type temperature sensor TK, and diode D1, capacitor C 1 constitute.
Said control relay circuit is mainly by relay J 1 and contact J1-1 thereof, J1-2, J1-3, and the triode T1 that is connected with relay J 1 constitutes.
Said display circuit adopts LCD display.
Said telecommunication circuit is for adopting the RS485 communication interface circuit of SN75176 signal transmitting and receiving chip, and its output signal sends to PC.
Through adopting above-mentioned technical scheme, the invention has the beneficial effects as follows: the present invention adopts on-line monitoring contact and analog temperature signal, is sent to single-chip microcomputer; After single-chip microcomputer is judged; Send control signal, be sent to PC, realize the online detection of PC through the RS485 communication bus.
Description of drawings
Fig. 1 is a frame assumption diagram of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1; A kind of temperature sensor detector of the present invention; Comprise temperature signal collection circuit 1 and single chip machine controlling circuit 3; Said temperature signal collection circuit 1 and control relay circuit 2 bidirectional data transfers; The output signal of temperature signal collection circuit 1 transfers to single chip machine controlling circuit 3 through analog switching circuit 11, operational amplification circuit 12, A/D data converting circuit 13 successively; The output signal of control relay circuit 3 sends to single chip machine controlling circuit 3, and single chip machine controlling circuit 3 controls export display circuit 31, warning circuit 32, telecommunication circuit 33 to.
As shown in Figure 2; Said temperature signal collection circuit 1 connects resistance R 1 by the output terminal of K type temperature sensor TK; R2; R3; Diode D1; Capacitor C 1 constitutes; The end of temperature sensor TK is connected in contact J1-1; When relay J 1 not adhesive; Contact J1-1 and J1-2 are that normally closed point is in conducting state; Contact J1-2 is in ground state; When the object that is contacted as temperature sensor TK has certain temperature; The temperature sensor TK other end produces small direct current signal through operational amplifier U4 and peripheral circuit resistance R 4; Resistance R 3; Diode D1; Resistance R 5, the output dc voltage signal is sent to single-chip microcomputer U1; When reaching setting value, send warning message.When pushing button K1; The 5th pin output high level of single-chip microcomputer U1 makes triode T1 conducting; Relay J 1 adhesive; Contact J1-1 no longer connects with contact J1-2; But contact J1-1 and J1-3 connection are connected to the Q point; Q point current potential is subjected to the 3rd foot control system of analog switching circuit U3; The 4th of analog switching circuit U3; 2; 5; 1; 12; 15; 14; 13 pin and resistance R 7-R121 form bleeder circuit; Form 8 sections different simulation temperature voltage signals; Through single-chip microcomputer U1 the control of analog switching circuit U3 is switched; The temperature signal of the 3rd pin output different brackets of analog switching circuit U3; This signal flows to resistance R 3 through temperature sensor TK; After the inner amplification of operational amplifier U4; By its 6th pin output; Be connected to the 2nd pin of A/D data converter U5; Carry out the A/D data-switching; When temperature sensor TK is in off state; By A/D data converter U5 the 5th; 6; The 7th of 7 pin and single-chip microcomputer U1; 8; 27 pin are formed datel circuit; Single-chip microcomputer U1 reads the current data information of analog switching circuit U3; After the comprehensive judgement of single-chip microcomputer U1 internal processor; Send control signal; First via output is by the 36th of single-chip microcomputer U1; 37; 38; The 3rd of 39 pin and LCD display U2; 4; 5; 6 pin connect, and show the current information state by LCD display U2; The second tunnel output through resistance R 25 current limlitings, makes news Chinese percussion instrument BDD send alarm sound by the 32nd pin output low level of single-chip microcomputer U1; Third Road output is formed the RS485 telecommunication circuit by the 9th, 10,25 pin of single-chip microcomputer U1 and the 1st, 2,3,4 pin of SN75176 signal transmitting and receiving chip U5; Send data-signal by single-chip microcomputer U1; Drive SN75176 signal transmitting and receiving chip U5 through system bus to the PC data information; PC shows the current information state, reaches the purpose that PC accurately shows.
Above-described only is a preferred embodiment of the present invention, can not limit the scope that this practicality is implemented, and every equalization of doing according to claim of the present invention changes and decorates, and all should still belong to the scope that the present invention is contained.
Claims (5)
1. temperature sensor detector; Comprise temperature signal collection circuit (1) and single chip machine controlling circuit (3); It is characterized in that: said temperature signal collection circuit (1) and control relay circuit (2) bidirectional data transfers; The output signal of temperature signal collection circuit (1) is successively through analog switching circuit (11); Operational amplification circuit (12); A/D data converting circuit (13) transfers to single chip machine controlling circuit (3); The output signal of control relay circuit (3) sends to single chip machine controlling circuit (3), and single chip machine controlling circuit (3) control exports display circuit (31) to; Warning circuit (32); Telecommunication circuit (33).
2. a kind of temperature sensor detector according to claim 1 is characterized in that: said temperature signal collection circuit (1) connects resistance R 1, R2, R3 by the output terminal of K type temperature sensor TK, and diode D1, capacitor C 1 constitute.
3. a kind of temperature sensor detector according to claim 1 is characterized in that: said control relay circuit (2) is mainly by relay J 1 and contact J1-1 thereof, J1-2, J1-3, and the triode T1 that is connected with relay J 1 constitutes.
4. a kind of temperature sensor detector according to claim 1 is characterized in that: said display circuit (31) adopts LCD display.
5. a kind of temperature sensor detector according to claim 1 is characterized in that: said telecommunication circuit (33) is for adopting the RS485 communication interface circuit of SN75176 signal transmitting and receiving chip, and its output signal sends to PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102900063A CN102353477A (en) | 2011-09-28 | 2011-09-28 | Temperature sensor detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102900063A CN102353477A (en) | 2011-09-28 | 2011-09-28 | Temperature sensor detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102353477A true CN102353477A (en) | 2012-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102900063A Pending CN102353477A (en) | 2011-09-28 | 2011-09-28 | Temperature sensor detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102353477A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198091A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Intelligent platinum resistor temperature measuring calibration instrument and calibration method thereof |
| CN104442236A (en) * | 2014-11-27 | 2015-03-25 | 张金茂 | Online temperature testing device for automobile tire |
| CN104729920A (en) * | 2015-03-20 | 2015-06-24 | 中国石油大学(华东) | Unconventional oil and gas reservoir rock mechanical characteristic analyzer |
| CN106840424A (en) * | 2017-02-10 | 2017-06-13 | 太仓鼎诚电子科技有限公司 | A kind of temperature measurement system |
| CN107578670A (en) * | 2017-11-06 | 2018-01-12 | 国网辽宁省电力有限公司技能培训中心 | Four distant experiment teaching device of hand held |
| CN108225599A (en) * | 2017-11-14 | 2018-06-29 | 中国科学院电工研究所无锡分所 | A kind of super capacitor temp detecting controller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828359U (en) * | 2010-10-26 | 2011-05-11 | 林禹鹏 | On-line temperature sensor detection circuit |
| CN202255690U (en) * | 2011-09-28 | 2012-05-30 | 福建俊豪电子有限公司 | Temperature sensor detection apparatus |
-
2011
- 2011-09-28 CN CN2011102900063A patent/CN102353477A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828359U (en) * | 2010-10-26 | 2011-05-11 | 林禹鹏 | On-line temperature sensor detection circuit |
| CN202255690U (en) * | 2011-09-28 | 2012-05-30 | 福建俊豪电子有限公司 | Temperature sensor detection apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 《工矿自动化》 20080229 李永等 "基于PC机和AVR单片机的RS485通信系统的设计与实现" 第108-110页 1-5 , 第1期 * |
| 李永等: ""基于PC机和AVR单片机的RS485通信系统的设计与实现"", 《工矿自动化》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198091A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Intelligent platinum resistor temperature measuring calibration instrument and calibration method thereof |
| CN104198091B (en) * | 2014-09-19 | 2018-01-26 | 国家电网公司 | A kind of intelligent platinum resistance temperature measurement tester and its method of calibration |
| CN104442236A (en) * | 2014-11-27 | 2015-03-25 | 张金茂 | Online temperature testing device for automobile tire |
| CN104729920A (en) * | 2015-03-20 | 2015-06-24 | 中国石油大学(华东) | Unconventional oil and gas reservoir rock mechanical characteristic analyzer |
| CN106840424A (en) * | 2017-02-10 | 2017-06-13 | 太仓鼎诚电子科技有限公司 | A kind of temperature measurement system |
| CN107578670A (en) * | 2017-11-06 | 2018-01-12 | 国网辽宁省电力有限公司技能培训中心 | Four distant experiment teaching device of hand held |
| CN108225599A (en) * | 2017-11-14 | 2018-06-29 | 中国科学院电工研究所无锡分所 | A kind of super capacitor temp detecting controller |
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Application publication date: 20120215 |