CN1338628A - Monitor and alarm system for multi-component gas - Google Patents
Monitor and alarm system for multi-component gas Download PDFInfo
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- CN1338628A CN1338628A CN 00119591 CN00119591A CN1338628A CN 1338628 A CN1338628 A CN 1338628A CN 00119591 CN00119591 CN 00119591 CN 00119591 A CN00119591 A CN 00119591A CN 1338628 A CN1338628 A CN 1338628A
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- resistance
- gas
- gas sensor
- threshold value
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Abstract
A multi-component gas monitoring system is composed of automatic temp control module for choosing optimal working temp, heater and gas sensor array, signal regulation module, threshold setting and comparing module, sound-light alarm, electric controller, and power supply transform and control module. It can monitor different gases at same time. Its advantages are high accuracy and low cost.
Description
The multicomponent gas monitor and alarm system belongs to gas-monitoring and mode identification technology.Be applicable in many gaseous environments, gas detected that monitoring is reported to the police and gas identification.
Existing gas-monitoring and warning system all are the warning system of pure gas, generally all are to be made of single gas sensor and detection alarm circuit, as: gas leakage warning device commonly used, smog control and warning system.Under many circumstances, usually there is multiple gases and mixes, to detect simultaneously and monitor multiple gases, if adopt pure gas detection alarm system, can only detect and monitor certain pure gas wherein, if in the same area, detect and the monitoring multiple gases, many cover pure gases then will be set to be detected and monitor and alarm system, so not only to the cost height of the monitoring of gas, and owing to exist cross-sensitivity to disturb between gas sensor, cause the detection error of gas greatlyyer, influence is to the degree of accuracy of gasmetry, sometimes also can be owing to detecting and the monitoring error cause false alarm.
In order to overcome the deficiency of existing pure gas detection alarm system, the invention provides a kind of multicomponent gas monitor and alarm system that can detect and monitor many components mixed gas and warning simultaneously.
Gas-monitoring warning system of the present invention is by well heater and gas sensor array, the automatic temperature-adjusting control module, and the signal condition module, threshold value is provided with comparison module, and electrical equipment control and power source conversion control module and acoustic-optic alarm are formed.Gas sensor array adopts several pure gas sensors that detect gas with various and well heater to constitute, and the pure gas sensor can be changed in gas sensor array according to the gas that will detect and monitor.The automatic temperature-adjusting control module is in the multicomponent gas environment, control heater is Automatic Optimal in 0～500 ℃ of scope, the optimum working temperature point of the signal that generation of selection gas sensor array and gas concentration are directly proportional, can work most effectively with the assurance gas sensor array, continuously and stably output signal.The signal condition module is gathered through signal pickup circuit to the received signal, merge, flow to threshold value after the processing comparison module is set, by threshold value comparison module being set compares monitored gas concentration signal and the threshold value (or national environmental standard) that sets in advance in module, when gas concentration surpasses the threshold value (or national environmental standard) that sets, send warning with acoustooptic form, and start the coupled electrical equipment that can reduce gas concentration rapidly by the power source conversion control module simultaneously, with the generation that prevents disasters.
The invention has the advantages that, the gas sensor array that employing is made of well heater and a plurality of pure gas sensor, can detect and monitor multiple gases simultaneously, and can also can change the pure gas sensor in the gas sensor array easily according to different monitoring environments.Automatic temperature-adjusting control module energy Automatic Optimal is selected gas sensor array optimum working temperature point, always can work most effectively with the assurance gas sensor array, continuously and stably the signal of outputting high quality.The multicomponent gas signal that gas sensor array sent is concentrated collection, merges, optimizes, handled by the signal condition module, and threshold value is provided with comparison module to be differentiated quickly and accurately, more in time sends alerting signal.Avoided adopting the cross-sensitivity that exists between the multichannel pure gas sensor warning system to disturb, improved detection and monitoring accuracy, and reduced cost significantly the multicomponent gas monitoring to multicomponent gas.
Accompanying drawing is an embodiment of the invention synoptic diagram, wherein;
Fig. 1 is a system schematic of the present invention;
Fig. 2 is a circuit system synoptic diagram of the present invention.
Now in conjunction with the accompanying drawings system of the present invention is further described.
The present invention is by automatic temperature-adjusting control module 1, well heater and gas sensor array 2, and signal condition module 3, threshold value are provided with comparison module 4, acoustic-optic alarm 5, electrical equipment control 6, power source conversion control module 7 is formed.Automatic temperature-adjusting control module 1 is by resistance R
1, R
2, R
3, constitute, wherein resistance R
1With the well heater 9 in well heater and the gas sensor array 2
1, 9
2An end connect the other end and resistance R
2An end connect resistance R
2The other end and resistance R
3An end and well heater 9
1The other end connect and and the reference voltage connection, resistance R
3The other end and resistance R
4An end connect and and the reference voltage connection, resistance R
4The other end and well heater 9
2The other end connect.Well heater and gas sensor array 2 are by gas sensor 8
1, 8
2, 8
3With well heater 9
1, 9
2Constitute, wherein gas sensor 8
1, 8
2, 8
3Be to detect the sensor of gas with various, their end is communicated with reference voltage, their other end respectively with signal condition module 3 in signal pickup circuit 10
1, 10
2, 10
3Connect.Signal pickup circuit is by variable resistor R
5, resistance R
6, R
7, R
8, capacitor C and differential amplifier 11
1, constitute, wherein variable resistor R
5An end and resistance R
6An end be communicated with variable resistor R with reference voltage
5And resistance R
6And gas sensor 8
1The other end and resistance R
7, R
8An end connect and capacitor C differential amplifier 11
1Be connected in parallel resistance R
7, R
8Other end ground connection.Threshold value is provided with comparison module 4 and by threshold value comparer 12 is set
1, 12
2, 12
3With diode G
1, G
2, G
3Constitute, threshold value is provided with comparer 12
1, 12
2, 12
3An end and differential amplifier 11
1, 11
2, 11
3An end connect its other end and diode G
1, G
2, G
3An end connect diode G
1, G
2, G
3The other end and the resistance R in the power source conversion control module
9An end be connected with transfer switch.
In the multicomponent gas environment, after energized of the present invention begins, automatic temperature-adjusting control module 1 is according to the fast automatic optimization of pure gas sensor situation of selecting for use in well heater and the gas sensor array 2 and the selection gas sensor array produces and the optimum working temperature point of the signal that gas concentration is directly proportional, can work most effectively with the assurance gas sensor array, continuously and stably output signal.The monitored gas signal that 2 pairs of signal condition modules receive is gathered, merge, flow to threshold value after the processing and amplifying comparison mould 4 is set, by threshold value comparison module being set compares monitored gas concentration signal and the threshold value (or national environmental standard) that sets in advance in module, when monitored gas concentration surpasses the threshold value (or national environmental standard) that sets, threshold value is provided with comparison mould 4 and sends signal, start sound and light alarm 5 and electrical equipment control 6 by power source conversion control module 7, send warning with acoustooptic form, startup can reduce the electrical equipment of gas concentration rapidly, takes place to prevent mishap.
Claims (5)
1. the multicomponent gas monitoring system is characterized in that; By automatic temperature-adjusting control module (1), well heater and gas sensor array (2), the signal condition module, threshold value is provided with comparison module (4), acoustic-optic alarm (5), electrical equipment control (6) and power source conversion control module (7) are formed, automatic temperature-adjusting control module (1) is according to the fast automatic optimization of pure gas sensor situation of selecting for use in well heater and the gas sensor array (2) and select gas sensor array to produce the optimum working temperature point of the signal that is directly proportional with gas concentration, gas sensor array (2) is at the optimum working temperature point, continuously and stably to signal condition module (3) output signal, signal condition module (3) is gathered the monitored gas signal that receives, merge, flow to threshold value after the processing and amplifying comparison mould (4) is set, by threshold value comparison module (4) being set compares monitored gas concentration signal and the threshold value (or national environmental standard) that sets in advance in module, when monitored gas concentration surpasses the threshold value (or national environmental standard) that sets, threshold value is provided with comparison mould (4) and sends signal to power source conversion control module (7), starts acoustic-optic alarm (5) and electrical equipment control (6).
2. gas monitoring system according to claim 1 is characterized in that; Well heater and gas sensor array (2) are made of well heater and a plurality of pure gas sensor, and the pure gas sensor can be according to monitored environment transposing.
3. gas monitoring system according to claim 1 is characterized in that; Automatic temperature-adjusting control module (1) is by resistance R
1, R
2, R
3, constitute, wherein resistance R
1With the well heater 9 in well heater and the gas sensor array (2)
1, 9
2An end connect the other end and resistance R
2An end connect ground connection, resistance R
2The other end and resistance R
3An end and well heater 9
1The other end connect and and the reference voltage connection, resistance R
3The other end and resistance R
4An end connect and and the reference voltage connection, resistance R
4The other end and well heater 9
2The other end connect.
4. gas monitoring system according to claim 1 is characterized in that; Signal pickup circuit in the signal condition module (3) is by variable resistor R
5, resistance R
6, R
7, R
8, capacitor C and differential amplifier 11
1, constitute, wherein variable resistor R
5An end and resistance R
6An end be communicated with variable resistor R with reference voltage
5And resistance R
6And resistance R
6And gas sensor 8
1The other end and resistance R
7, R
8An end connect and and capacitor C, differential amplifier 11
1Be connected in parallel resistance R
7, R
8Other end ground connection.
5. gas monitoring system according to claim 1 is characterized in that; By threshold value comparer 12 is set
1, 12
2, 12
3With diode G
1, G
2, G
3Constitute, threshold value is provided with comparer 12
1, 12
2, 12
3An end and differential amplifier 11
1, 11
2, 11
3An end connect its other end and diode G
1, G
2, G
3An end connect diode G
1, G
2, G
3The other end and the resistance R in the power source conversion control module
9An end be connected with transfer switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119591 CN1338628A (en) | 2000-08-10 | 2000-08-10 | Monitor and alarm system for multi-component gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119591 CN1338628A (en) | 2000-08-10 | 2000-08-10 | Monitor and alarm system for multi-component gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1338628A true CN1338628A (en) | 2002-03-06 |
Family
ID=4587832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00119591 Pending CN1338628A (en) | 2000-08-10 | 2000-08-10 | Monitor and alarm system for multi-component gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1338628A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034073B (en) * | 2006-03-07 | 2010-04-21 | 林珠美 | Gas detecting alarm system |
| CN1924585B (en) * | 2006-09-08 | 2010-08-11 | 聚光科技(杭州)股份有限公司 | Detection process and apparatus for water removing apparatus in gas analysis system |
| CN101074947B (en) * | 2007-06-27 | 2010-09-15 | 江苏大学 | Method and apparatus for inspecting two-kind gas sensor array combination odour |
| US7980119B2 (en) | 2006-12-06 | 2011-07-19 | Shimadzu Corporation | Auto-sampler cleaning mechanism |
| CN102346162A (en) * | 2011-09-21 | 2012-02-08 | 河南汉威电子股份有限公司 | Active temperature compensation type gas detector and temperature compensation method thereof |
| CN104295908A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | CO2 quality control and conveying pipe corrosion control method |
| CN106568900A (en) * | 2016-11-04 | 2017-04-19 | 天津兴科启智科技发展有限公司 | Integrated circuit-based combustible gas detection device |
| CN106940340A (en) * | 2017-04-14 | 2017-07-11 | 中国石油化工股份有限公司 | Dangerous atmosphere comprehensive state fingerprint recognition system |
| CN103323501B (en) * | 2012-03-20 | 2017-12-15 | 盛思锐股份公司 | Portable electron device |
| CN107966332A (en) * | 2017-11-21 | 2018-04-27 | 宇星科技发展(深圳)有限公司 | Particulate matter detection means and its circuit |
| CN108770336A (en) * | 2015-11-17 | 2018-11-06 | 庆熙大学校产学协力团 | Utilize the vital information measurement device and method of sensor array |
| CN109357699A (en) * | 2018-11-05 | 2019-02-19 | 河南省日立信股份有限公司 | A kind of multisensor array, which intersects, to be solved and its detection method |
| CN109891227A (en) * | 2016-08-15 | 2019-06-14 | 皇家墨尔本理工大学 | Gas sensor capsule |
| CN114170767A (en) * | 2021-12-16 | 2022-03-11 | 山东省医药工业设计院有限公司 | Selection method of multi-component mixed gas concentration alarm detector |
-
2000
- 2000-08-10 CN CN 00119591 patent/CN1338628A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034073B (en) * | 2006-03-07 | 2010-04-21 | 林珠美 | Gas detecting alarm system |
| CN1924585B (en) * | 2006-09-08 | 2010-08-11 | 聚光科技(杭州)股份有限公司 | Detection process and apparatus for water removing apparatus in gas analysis system |
| US7980119B2 (en) | 2006-12-06 | 2011-07-19 | Shimadzu Corporation | Auto-sampler cleaning mechanism |
| CN101074947B (en) * | 2007-06-27 | 2010-09-15 | 江苏大学 | Method and apparatus for inspecting two-kind gas sensor array combination odour |
| CN102346162A (en) * | 2011-09-21 | 2012-02-08 | 河南汉威电子股份有限公司 | Active temperature compensation type gas detector and temperature compensation method thereof |
| CN103323501B (en) * | 2012-03-20 | 2017-12-15 | 盛思锐股份公司 | Portable electron device |
| CN104295908A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | CO2 quality control and conveying pipe corrosion control method |
| CN108770336A (en) * | 2015-11-17 | 2018-11-06 | 庆熙大学校产学协力团 | Utilize the vital information measurement device and method of sensor array |
| CN108770336B (en) * | 2015-11-17 | 2021-08-24 | 庆熙大学校产学协力团 | Biological information measuring apparatus and method using sensor array |
| CN109891227A (en) * | 2016-08-15 | 2019-06-14 | 皇家墨尔本理工大学 | Gas sensor capsule |
| CN106568900A (en) * | 2016-11-04 | 2017-04-19 | 天津兴科启智科技发展有限公司 | Integrated circuit-based combustible gas detection device |
| CN106940340A (en) * | 2017-04-14 | 2017-07-11 | 中国石油化工股份有限公司 | Dangerous atmosphere comprehensive state fingerprint recognition system |
| CN106940340B (en) * | 2017-04-14 | 2023-03-28 | 中国石油化工股份有限公司 | Dangerous atmosphere comprehensive state fingerprint identification system |
| CN107966332A (en) * | 2017-11-21 | 2018-04-27 | 宇星科技发展(深圳)有限公司 | Particulate matter detection means and its circuit |
| CN109357699A (en) * | 2018-11-05 | 2019-02-19 | 河南省日立信股份有限公司 | A kind of multisensor array, which intersects, to be solved and its detection method |
| CN114170767A (en) * | 2021-12-16 | 2022-03-11 | 山东省医药工业设计院有限公司 | Selection method of multi-component mixed gas concentration alarm detector |
| CN114170767B (en) * | 2021-12-16 | 2023-08-29 | 山东省医药工业设计院有限公司 | Method for selecting multi-component mixed gas concentration alarm detector |
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