CN104655298A - High-precision water temperature monitoring system - Google Patents
High-precision water temperature monitoring system Download PDFInfo
- Publication number
- CN104655298A CN104655298A CN201310587273.6A CN201310587273A CN104655298A CN 104655298 A CN104655298 A CN 104655298A CN 201310587273 A CN201310587273 A CN 201310587273A CN 104655298 A CN104655298 A CN 104655298A
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- China
- Prior art keywords
- circuit
- voltage
- signal
- signal amplification
- water temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a high-precision water temperature monitoring system which comprises a temperature sensor, wherein the output of the temperature sensor is connected with a filtering circuit; the output end of the filtering circuit is connected with a signal amplification circuit; the output of the signal amplification circuit is connected with an A/D conversion circuit; the output of the A/D conversion circuit is connected with a single-chip microcomputer; the single-chip microcomputer is connected with and controls a buzzer alarm device; the temperature sensor outputs an acquired temperature signal to the signal amplification circuit; the signal amplification circuit amplifies a tiny voltage signal and outputs the amplified voltage signal to a voltage comparison circuit; the voltage comparison circuit compares the voltage signal with set boiling point voltage; when the voltage output by the signal amplification circuit reaches the boiling point voltage, the voltage comparison circuit generates jump to cause the change of the potential of the output end, so that an alarming device gives an alarm through an LED lamp and the buzzer alarm device; the water temperature can be monitored; at the boiling point, the alarm is given; the high-precision water temperature monitoring system has the characteristics of accuracy, quickness and high sensitivity.
Description
Technical field
The present invention relates to a kind of control system, particularly a kind of high precision water temperature monitoring system.
Background technology
When people heat up water in schedule life, often leave during this period and do other things, water can not be waited on hand at any time to open, just can go when water is boiled to close swap switch, therefore just be easy to forget or ignore, or etc. water is boiled does not but realize, boiling water is caused to overflow the kitchen range top of making dirty, gas-cooker even can be made to extinguish, if not by Timeliness coverage, easily cause very large potential safety hazard.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the invention is to propose a kind of high precision water temperature monitoring system, can monitor water temperature, reach boiling point alarm, there is accurate, quick, highly sensitive feature.
To achieve these goals, the technical solution used in the present invention is:
A kind of high precision water temperature monitoring system, comprise temperature sensor, temperature sensor exports and connects filtering circuit, the output terminal connection signal amplifying circuit of filtering circuit, signal amplification circuit exports and connects A/D change-over circuit, A/D change-over circuit exports and connects single-chip microcomputer, single-chip microcomputer connection control buzzer siren.
Because the present invention adopts temperature sensor collecting temperature information, circuit makes signal remove noise after filtering, signal amplification circuit can amplify the voltage signal that temperature sensor exports, equipment is made to make sensitive reaction to small signal intensity, can monitor water temperature, reaching boiling point alarm, there is accurate, quick, highly sensitive feature.
Accompanying drawing explanation
Accompanying drawing is system principle diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See accompanying drawing, a kind of high precision water temperature monitoring system, comprise temperature sensor, temperature sensor exports and connects filtering circuit, the output terminal connection signal amplifying circuit of filtering circuit, signal amplification circuit exports and connects A/D change-over circuit, and A/D change-over circuit exports and connects single-chip microcomputer, single-chip microcomputer connection control buzzer siren.
Principle of work of the present invention is:
Temperature sensor exports the temperature signal of collection to signal amplification circuit, small voltage signal amplifies and exports voltage comparator circuit to by signal amplification circuit, compared with the boiling voltage set, when the voltage that signal amplification circuit exports reaches boiling voltage, voltage comparator circuit generation saltus step causes output terminal potential change, and warning device is reported to the police by LED and buzzer siren.
Claims (1)
1. a high precision water temperature monitoring system, comprise temperature sensor, it is characterized in that, temperature sensor exports and connects filtering circuit, the output terminal connection signal amplifying circuit of filtering circuit, signal amplification circuit exports and connects A/D change-over circuit, and A/D change-over circuit exports and connects single-chip microcomputer, single-chip microcomputer connection control buzzer siren
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587273.6A CN104655298A (en) | 2013-11-19 | 2013-11-19 | High-precision water temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587273.6A CN104655298A (en) | 2013-11-19 | 2013-11-19 | High-precision water temperature monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655298A true CN104655298A (en) | 2015-05-27 |
Family
ID=53246695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310587273.6A Pending CN104655298A (en) | 2013-11-19 | 2013-11-19 | High-precision water temperature monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104655298A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092062A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Outdoor transformer station power plant temperature measurement warning system |
| CN105092063A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Switch cabinet temperature measurement warning system |
| CN105698955A (en) * | 2016-03-19 | 2016-06-22 | 许月进 | Temperature detector for hydro-thermal synthesis reaction still |
-
2013
- 2013-11-19 CN CN201310587273.6A patent/CN104655298A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092062A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Outdoor transformer station power plant temperature measurement warning system |
| CN105092063A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Switch cabinet temperature measurement warning system |
| CN105698955A (en) * | 2016-03-19 | 2016-06-22 | 许月进 | Temperature detector for hydro-thermal synthesis reaction still |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |