CN201488824U - Temperature-measuring type monitoring and alarming module - Google Patents
Temperature-measuring type monitoring and alarming module Download PDFInfo
- Publication number
- CN201488824U CN201488824U CN2009201941365U CN200920194136U CN201488824U CN 201488824 U CN201488824 U CN 201488824U CN 2009201941365 U CN2009201941365 U CN 2009201941365U CN 200920194136 U CN200920194136 U CN 200920194136U CN 201488824 U CN201488824 U CN 201488824U
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- type monitoring
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Abstract
The utility model belongs to the field of electronic circuits and particularly relates to a remote monitoring temperature-measuring type monitoring and alarming module, which comprises a single-chip microcomputer control circuit, a multi-way temperature sensor circuit and a power supply circuit, wherein the input of the temperature sensor circuit is connected into the power supply circuit, the output thereof is serially connected with an analog switch circuit, an operational amplification and rectification adjusting circuit and an A/D converting circuit in sequence, and is then connected to the single-chip microcomputer control circuit; the output of the single-chip microcomputer control circuit is connected to an indicator light circuit, and the input/output of the indicator light circuit are connected with a 485 communication interface circuit. The temperature-measuring type monitoring and alarming module disclosed by the utility model has the advantages of simple structure and convenient operation, thereby being convenient for remote monitoring and a centralized management.
Description
Technical field
The utility model relates to electronic circuit field, relates in particular to a kind of temp.-measuring type monitoring, alarming module.
Background technology
Generation along with temp sensor device, utilize temp sensor device monitoring environment temperature, when changing, environment temperature in time reports to the police, to prevent owing to temperature change causes damage to production, life and scientific experiment etc., particularly in electrical fire, but effect with early warning, when electrical leakage, transmission line of electricity are short-circuited or transship, will produce huge energy, cause that the transmission line of electricity temperature raises, even the insulation course of destruction cable, cause accident or breaking out of fire.Forecast and provide warning message if can in time find potential fire hazard, in time pinpoint the problems, just retrieve a loss.
Existing temp.-measuring type monitoring, alarming module is made up of temperature sensing circuit, temperature display circuit and warning circuit, apparatus function is single, do not possess good extendibility, and the complexity of be provided with, main adopt the temperature sensor monitors temperature and report to the police by sound or pilot lamp, carry out overload alarm according to set temperature value, its monitoring range is limited.
The utility model content
The purpose of this utility model is: at determining that above prior art exists, provide a kind of temp.-measuring type monitoring, alarming module, and simple in structure, easy to operate, be convenient to the warning device of remote monitoring or centralized management.
The utility model is to adopt following technical scheme to realize:
Temp.-measuring type monitoring, alarming module, comprise single chip machine controlling circuit, multi way temperature sensor circuit and power circuit, the input of described temperature sensor circuit is connected in power circuit, its output is connected behind analog switching circuit, amplifier rectification adjustment circuit, the A/D change-over circuit successively, be connected to single chip machine controlling circuit, the output of described single chip machine controlling circuit is connected to indicator light circuit, and its input and output are connected with communication interface circuit.
Further, described single chip machine controlling circuit comprises 51 singlechip chips and connection oscillation generating circuit and watchdog circuit thereon, and described watchdog circuit is to be made of 5045 chips and connection RC oscillatory circuit thereon.
Further, described analog switching circuit is connected with the input of multi way temperature sensor circuit.Described temperature sensor circuit be by power supply VCC through after resistance and the diode dividing potential drop through the RC filtering circuit, described temperature sensor is connected in after the RC filtering circuit, exports analog switching circuit to through current-limiting resistance again.Described temperature sensor is a K type temperature sensor, can be arranged at test environment and testee surface.
Further, described communication interface circuit is 51 singlechip chips that are connected in single chip machine controlling circuit by network control chip and signal transmitting and receiving chip, its output transfers to system bus by the output terminal of signal transmitting and receiving chip, described network control chip is 8019 chips, and described signal transmitting and receiving chip is 75176 chips.Described communication interface circuit is the RS485 communication interface circuit.
Further, described indicator light circuit is the circuit that is made of light emitting diode that is connected in 51 singlechip chips and series connection current-limiting resistance thereon.
Above-mentioned temp.-measuring type monitoring, alarming module, adopt K type sensor acquisition temperature signal, after signal adjustment processing, handle through the single-chip microcomputer logical data again, show current temperature value in real time, when surpassing setting value, send the sound and light alarm signal, and, transfer to remote monitor by the output of RS485 communication data interface.The disclosed temp.-measuring type monitoring, alarming of the utility model module, simple in structure, easy to operate, be convenient to remote monitoring or centralized management.
Description of drawings
Fig. 1 is the theory diagram of the utility model temp.-measuring type monitoring, alarming module;
Fig. 2 is the schematic diagram of the utility model temp.-measuring type monitoring, alarming module.
Embodiment
Existing accompanying drawings and embodiment further specify the utility model.
Consult shown in Figure 1, a kind of temp.-measuring type monitoring, alarming module, comprise single chip machine controlling circuit 1, multi way temperature sensor circuit 2 and power circuit 3, the input of described temperature sensor circuit 2 is connected in power circuit 3, its output is connected behind analog switching circuit 4, amplifier rectification adjustment circuit 5, the A/D change-over circuit 6 successively, be connected to single chip machine controlling circuit 1, the output of described single chip machine controlling circuit 1 is connected to indicator light circuit 7, and its input and output are connected with 485 communication interface circuits 8.
Further, consult shown in Figure 2, described single chip machine controlling circuit 1 comprises 51 singlechip chip U1 and connection oscillation generating circuit and watchdog circuit 9 thereon, and described watchdog circuit 9 is to be made of 5045 chip U4 and connection RC oscillatory circuit R5, C2 thereon.Described analog switching circuit 4 is connected with 2 inputs of multi way temperature sensor circuit.Described temperature sensor circuit 2 be by power supply VCC through after resistance R 1, R8 and the diode D1 dividing potential drop through RC filtering circuit R2, C1, described temperature sensor U8 is a K type temperature sensor, be connected in after RC filtering circuit R2, the C1, export analog switching circuit 4 to through current-limiting resistance R3 again.
Further, described 485 communication interface circuits 8 are the 51 singlechip chip U1 that are connected in single chip machine controlling circuit 1 by network control chip U5 and signal transmitting and receiving chip U6, its output transfers to system bus by the output terminal of signal transmitting and receiving chip U6, described network control chip U5 is 8019 chips, and described signal transmitting and receiving chip U6 is 75176 chips.Described indicator light circuit 7 is the circuit that are made of the LED 1～LED8 that is connected in 51 singlechip chip U1 and series connection current-limiting resistance R9～R16 thereon.
The principle of work of the utility model embodiment is:
When detecting temperature, temperature sensor U8 raises gradually, the resistance value of temperature sensor increases gradually, its both end voltage also increases gradually, insert analog switch chip U2 the 13rd pin through current-limiting resistance R3, after internal conversion, export from analog switch chip U2 the 3rd pin, the 3rd pin of input operational amplifier U7, through operational amplification circuit data-signal is amplified the 6th pin output of back by operational amplifier U7, the 2nd pin of input A/D conversion chip U3 is imported data-signal after the A/D conversion from the 2nd pin of 51 singlechip chip U1.After 51 singlechip chip U1 detect the 2nd pin data-signal input is arranged, judge through logic analysis whether this signal temperature value has reached the alarm temperature value.As do not reach the alarm temperature value then 51 singlechip chip U1 do not have signal output; If the alarm temperature of reaching value is arranged, then 51 singlechip chip U1 divide two-way output: the output of first via pilot lamp, and by the 35th pin output low level of 51 singlechip chip U1,, make LED 1 bright through resistance R 9, represent that this has heat alarm to produce mutually; The second tunnel communication interface output, the 1st pin, the 2nd, 3 pin, the 4th pin that is added to x1 pin, x2 pin, x3 pin and the signal transmitting and receiving chip U6 of network control chip U5 by the 4th pin, the 5th pin, the output of the 6th pin serial data of 51 singlechip chip U1 respectively with this mutually heat alarm be sent to system bus.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (7)
1. temp.-measuring type monitoring, alarming module, it is characterized in that: comprise single chip machine controlling circuit (1), temperature sensor circuit (2) and power circuit (3), the input of described temperature sensor circuit (2) is connected in power circuit (3), its output is connected behind analog switching circuit (4), amplifier rectification adjustment circuit (5), the A/D change-over circuit (6) successively, be connected to single chip machine controlling circuit (1), the output of described single chip machine controlling circuit (1) is connected to indicator light circuit (7), and its input and output are connected with communication interface circuit (8).
2. temp.-measuring type monitoring, alarming module according to claim 1, it is characterized in that: described single chip machine controlling circuit (1) comprises 51 singlechip chips (U1) and connection oscillation generating circuit and watchdog circuit (9) thereon, and described watchdog circuit (9) is to be made of 5045 chips (U4) and connection RC oscillatory circuit (R5, C2) thereon.
3. temp.-measuring type monitoring, alarming module according to claim 1 is characterized in that: described analog switching circuit (4) is connected with multi way temperature sensor circuit (2) input.
4. according to claim 1 or 3 described temp.-measuring type monitoring, alarming modules, it is characterized in that: described temperature sensor circuit (2) be by power supply VCC through after resistance (R1, R8) and diode (D1) dividing potential drop through RC filtering circuit (R2, C1), described temperature sensor (U8) is connected in RC filtering circuit (R2, C1) afterwards, passes through current-limiting resistance (R3) again and exports analog switching circuit (4) to.
5. temp.-measuring type monitoring, alarming module according to claim 4 is characterized in that: described temperature sensor (U8) is a K type temperature sensor.
6. temp.-measuring type monitoring, alarming module according to claim 1, it is characterized in that: described communication interface circuit (8) is 51 singlechip chips (U1) that are connected in single chip machine controlling circuit (1) by network control chip (U5) and signal transmitting and receiving chip (U6), its output transfers to system bus by the output terminal of signal transmitting and receiving chip (U6), described network control chip (U5) is 8019 chips, and described signal transmitting and receiving chip (U6) is 75176 chips.
7. temp.-measuring type monitoring, alarming module according to claim 1 is characterized in that: described indicator light circuit (7) is by the light emitting diode that is connected in 51 singlechip chips (U1) (thereon current-limiting resistance of LED1～LED8) and the series connection (circuit of R9～R16) constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941365U CN201488824U (en) | 2009-09-02 | 2009-09-02 | Temperature-measuring type monitoring and alarming module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941365U CN201488824U (en) | 2009-09-02 | 2009-09-02 | Temperature-measuring type monitoring and alarming module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488824U true CN201488824U (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201941365U Expired - Fee Related CN201488824U (en) | 2009-09-02 | 2009-09-02 | Temperature-measuring type monitoring and alarming module |
Country Status (1)
| Country | Link |
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| CN (1) | CN201488824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062645A (en) * | 2010-11-01 | 2011-05-18 | 航天东方红卫星有限公司 | Matrix multi-path temperature detection circuit for small satellite platform |
| CN104280146A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Contact type temperature alarm for transformer substation |
-
2009
- 2009-09-02 CN CN2009201941365U patent/CN201488824U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062645A (en) * | 2010-11-01 | 2011-05-18 | 航天东方红卫星有限公司 | Matrix multi-path temperature detection circuit for small satellite platform |
| CN104280146A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Contact type temperature alarm for transformer substation |
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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: 20100526 Termination date: 20120902 |