CN202275489U - CO detection alarm and protection device - Google Patents
CO detection alarm and protection device Download PDFInfo
- Publication number
- CN202275489U CN202275489U CN2011203702667U CN201120370266U CN202275489U CN 202275489 U CN202275489 U CN 202275489U CN 2011203702667 U CN2011203702667 U CN 2011203702667U CN 201120370266 U CN201120370266 U CN 201120370266U CN 202275489 U CN202275489 U CN 202275489U
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- chip microcomputer
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Abstract
The utility model relates to the field of automatic alarm, and especially relates to a CO detection alarm and protection device based on a single-chip microcomputer. The device comprises a single-chip microcomputer, a sensor module, an A\D converting circuit, a signal amplification circuit, a power switching circuit, an LCD display module, an automatic alarm module, a power-off protection module and a communication module. The power switching circuit is used for providing a 5V voltage to the whole device. The sensor module is connected with the A\D converting circuit. The A\D converting circuit is connected with the signal amplification circuit. The LCD display module, the automatic alarm module, the power-off protection module and the communication module are all connected with the single-chip microcomputer. The single-chip microcomputer is adopted for control. The device of the utility model is simple in structure, high in stability, rapid in signal processing speed, small in volume and low in cost.
Description
Technical field
The utility model relates to automatic warning field, relates in particular to a kind of SCM Based CO detection alarm and protective device.
Background technology
Carbon monoxide (being CO) is colourless, odorless, tasteless gas.In the industry, blast furnace gas and producer CO content 30%～35%; Water gas CO content 30%～40%.Industry such as steel-making, coking, firing fire door or wicket in process of production are not closed completely, and gas piping gas leakage all can be revealed a large amount of CO.Be exactly because there are a large amount of CO to produce during coal mine gas from explosion.CO concentration reaches at 12.5% o'clock in the air, and the danger of blast is arranged.
Because the careless and inadvertent incident that causes gas leak CO poisoning or blast or even death frequently takes place, human personal safety as well as the property safety in serious threat.The device that detects CO concentration in the market is more, but apparatus structure is complicated, sensitivity is not high.Can trigger automatic outage, also not occur with the device that prevents to set off an explosion because of electric spark.
Summary of the invention
Therefore; In order to address the above problem, the utility model provides a kind of SCM Based CO detection alarm and protective device, and this device can show the CO concentration value in real time; When CO concentration surpassed preset value, warning automatically, deenergization were also passed to host computer with information through communication interface.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of CO detection alarm and protective device is characterized in that: comprise single-chip microcomputer, sensor assembly, A/D change-over circuit, signal amplification circuit, power-switching circuit, LCD display module, automatic alarm module, power failure protection module, communication module; Sensor assembly is connected with the A/D change-over circuit, and the A/D change-over circuit is connected with signal amplification circuit, and LCD display module, automatic alarm module, power failure protection module, communication module all are connected with single-chip microcomputer.
First preferred version of the utility model is that described single-chip microcomputer adopts the AT89C2051 chip.
Second preferred version of the utility model is that said CO concentration detects warning automatically and power-off protection apparatus need be installed in indoor power supply master switch place.
The 3rd preferred version of the utility model is that alarm module adopts hummer automatically.
The 4th preferred version of the utility model is that power failure protection module adopts solid-state relay.
The 5th preferred version of the utility model is that the LCD display module adopts LCD1602, is used to show real-time CO concentration value and preset CO upper limit of concentration value.
The technical advantage of the utility model is that power failure protection module breaks off indoor power supply through electric brake master switch in the disconnection chamber, avoids the blast that is caused by electric spark.This device adopts Single-chip Controlling, and is simple in structure, stability is high, fast to conversion speed, volume is little, cost is low
Below in conjunction with accompanying drawing and embodiment this programme is further specified.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of present embodiment.
Fig. 2 is the programming flowchart of present embodiment.
Embodiment
Fig. 1 is the system architecture synoptic diagram of this CO detection alarm and protective device.Power-switching circuit is that whole device provides 5V voltage; Sensor assembly is connected with the A/D change-over circuit; The A/D change-over circuit is connected with signal amplification circuit, and LCD display module, automatic alarm module, power failure protection module, communication module all are connected with single-chip microcomputer.
Sensor assembly output CO concentration of analog signal inputs to single-chip microcomputer and shows current real-time CO concentration information by LCD through A/D change-over circuit, signal amplification circuit; When CO concentration surpasses preset value, send alerting signal by single-chip microcomputer and give automatic alarm module, power failure protection module and communication module.Open hummer, break off general supply thereby break off solid-state relay, and send information to host computer through serial ports.
Fig. 2 is the programming flowchart of present embodiment.System is initializing circuit at first; Detectable concentration also is presented at the CO concentration value on the LCD display module in real time, whether judges CO concentration greater than preset CO concentration value, if not; Then continue detectable concentration; If CO concentration is then opened hummer greater than preset CO concentration value, thereby send warning message to host computer and break off general supply in the solid-state relay disconnection chamber.
Claims (6)
1. CO detection alarm and protective device is characterized in that: comprise single-chip microcomputer, sensor assembly, A/D change-over circuit, signal amplification circuit, power-switching circuit, LCD display module, alarm module, power failure protection module, communication module automatically; Sensor assembly is connected with the A/D change-over circuit, and the A/D change-over circuit is connected with signal amplification circuit, and LCD display module, automatic alarm module, power failure protection module, communication module all are connected with single-chip microcomputer.
2. CO detection alarm as claimed in claim 1 and protective device is characterized in that: described single-chip microcomputer adopts the AT89C2051 chip.
3. CO detection alarm as claimed in claim 1 and protective device is characterized in that: said CO concentration detects warning automatically and power-off protection apparatus need be installed in indoor power supply master switch place.
4. CO detection alarm as claimed in claim 1 and protective device is characterized in that: alarm module adopts hummer automatically.
5. CO detection alarm as claimed in claim 1 and protective device is characterized in that: power failure protection module adopts solid-state relay.
6. CO detection alarm as claimed in claim 1 and protective device is characterized in that: the LCD display module adopts LCD1602, is used to show real-time CO concentration value and preset CO upper limit of concentration value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203702667U CN202275489U (en) | 2011-09-27 | 2011-09-27 | CO detection alarm and protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203702667U CN202275489U (en) | 2011-09-27 | 2011-09-27 | CO detection alarm and protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275489U true CN202275489U (en) | 2012-06-13 |
Family
ID=46195835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203702667U Expired - Fee Related CN202275489U (en) | 2011-09-27 | 2011-09-27 | CO detection alarm and protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969297A (en) * | 2014-05-09 | 2014-08-06 | 苏州经贸职业技术学院 | Indoor CO concentration detector |
-
2011
- 2011-09-27 CN CN2011203702667U patent/CN202275489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969297A (en) * | 2014-05-09 | 2014-08-06 | 苏州经贸职业技术学院 | Indoor CO concentration detector |
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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: 20120613 Termination date: 20120927 |