CN102364537A - CO detecting, alarming and protecting device - Google Patents
CO detecting, alarming and protecting device Download PDFInfo
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- CN102364537A CN102364537A CN2011102965388A CN201110296538A CN102364537A CN 102364537 A CN102364537 A CN 102364537A CN 2011102965388 A CN2011102965388 A CN 2011102965388A CN 201110296538 A CN201110296538 A CN 201110296538A CN 102364537 A CN102364537 A CN 102364537A
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Abstract
The invention relates to the field of automatic alarming, in particular to a CO detecting, alarming and protecting device based on a singlechip microcomputer. The CO detecting, alarming and protecting device comprises the singlechip microcomputer, a sensor module, an A/D (Analog/Digital) conversion circuit, a signal amplifying circuit, a power source conversion circuit, an LCD (Liquid Crystal Display) module, an automatic alarming module, a power-off protection module and a communication module. The power source conversion supplies 5V voltage to the entire device, the sensor module is connected with the A/D conversion circuit which is connected with the signal amplifying circuit, and the LCD alarming module, the power-off protection module and the communication module are all connected with the singlechip microcomputer. The CO detecting, alarming and protecting device is controlled by adopting the singlechip microcomputer and has the advantages of simple structure, high stability, high signal processing speed, small size and low cost.
Description
Technical field
The present invention relates to the field of reporting to the police automatically, relate 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 invention provides a kind of SCM Based CO detection alarm and protective device, 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 present invention 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 present invention is that described single-chip microcomputer adopts the AT89C2051 chip.
Second preferred version of the present invention 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 present invention is that alarm module adopts hummer automatically.
The 4th preferred version of the present invention is that power failure protection module adopts solid-state relay.
The 5th preferred version of the present invention 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.
Technical advantage of the present invention 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 |
|---|---|---|---|
| CN2011102965388A CN102364537A (en) | 2011-09-27 | 2011-09-27 | CO detecting, alarming and protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102965388A CN102364537A (en) | 2011-09-27 | 2011-09-27 | CO detecting, alarming and protecting device |
Publications (1)
| Publication Number | Publication Date |
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| CN102364537A true CN102364537A (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102965388A Pending CN102364537A (en) | 2011-09-27 | 2011-09-27 | CO detecting, alarming and protecting device |
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| CN (1) | CN102364537A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885391A (en) * | 2012-12-19 | 2014-06-25 | 中国科学院沈阳自动化研究所 | Small autonomous underwater robot power management system |
| CN103903384A (en) * | 2014-04-10 | 2014-07-02 | 成都微英威诺环境监控设备有限公司 | Power source automatic cutoff warning device based on accelerated speed detection and GSM short-message warning |
| CN105160827A (en) * | 2015-09-01 | 2015-12-16 | 广西南宁智翠科技咨询有限公司 | Gas alarm system |
| CN106198899A (en) * | 2016-09-28 | 2016-12-07 | 南京铁道职业技术学院 | A kind of Communication ray cable run unmanned well oxygen content testing circuit |
| CN110930628A (en) * | 2019-12-06 | 2020-03-27 | 西安鼎蓝通信技术有限公司 | Indoor gas remote alarm system and indoor gas remote alarm method |
-
2011
- 2011-09-27 CN CN2011102965388A patent/CN102364537A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885391A (en) * | 2012-12-19 | 2014-06-25 | 中国科学院沈阳自动化研究所 | Small autonomous underwater robot power management system |
| CN103903384A (en) * | 2014-04-10 | 2014-07-02 | 成都微英威诺环境监控设备有限公司 | Power source automatic cutoff warning device based on accelerated speed detection and GSM short-message warning |
| CN105160827A (en) * | 2015-09-01 | 2015-12-16 | 广西南宁智翠科技咨询有限公司 | Gas alarm system |
| CN106198899A (en) * | 2016-09-28 | 2016-12-07 | 南京铁道职业技术学院 | A kind of Communication ray cable run unmanned well oxygen content testing circuit |
| CN110930628A (en) * | 2019-12-06 | 2020-03-27 | 西安鼎蓝通信技术有限公司 | Indoor gas remote alarm system and indoor gas remote alarm method |
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Application publication date: 20120229 |