CN102682579A - Intelligent memory type gas leakage alarming control device - Google Patents
Intelligent memory type gas leakage alarming control device Download PDFInfo
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- CN102682579A CN102682579A CN2012101346525A CN201210134652A CN102682579A CN 102682579 A CN102682579 A CN 102682579A CN 2012101346525 A CN2012101346525 A CN 2012101346525A CN 201210134652 A CN201210134652 A CN 201210134652A CN 102682579 A CN102682579 A CN 102682579A
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Abstract
The invention provides an intelligent memory type gas leakage alarming control device, which comprises a microcontroller, a power module, an alarming module, a memory, a built-in gas-sensing detector and a detector amplification circuit, wherein the alarming module and the memory are connected with the microcontroller; the built-in gas-sensing detector is connected with the microcontroller through the detector amplification circuit; and the power module is respectively connected with the alarming module, the microcontroller and the detector amplification circuit. A debugging process for the intelligent memory type gas leakage alarming control device is simple, the intelligent memory type gas leakage alarming control device is low in production cost and high in alarming accuracy and stability, and environmental pollution is reduced.
Description
Technical field:
The present invention relates to a kind of intelligent memory type gas leakage alarm control device.
Background technology:
At present; Known gas leakage alarm control device generally is to adopt simulation circuit structure; The characteristic that resistance value also can change when it touched the inflammable gas of variable concentrations according to gas sensor realizes; Gas sensor and a variable resistor are connect two input ends of comparer respectively,, and then send high level or low level alerting signal through the voltage of comparer two input ends relatively; This gas leakage alarm control device can be regulated the warning concentration of inflammable gas through regulating variable-resistance resistance, i.e. the aerial minimum explosion ratio of combustible gas body (LEL).This just requires, and the variable-resistance resistance after the adjusting just satisfies 10% of the aerial minimum explosion ratio of inflammable gas.The voltage of two input ends of comparer is identical; If be lower than 10% of LEL; Will false alarm; Being higher than 30% of LEL will constitute a threat to safety; The gas leakage alarm concentration that for this reason will reach like this it must just can reach the product correct qualified requirement of reporting to the police after through the repetitious debugging that charges and discharge gas of in airtight container, slowly injecting inflammable gas and being charged to the standard alarm concentration value gradually from " 0 " value concentration with the gas leakage alarm device, so this gas leakage alarm control device has following deficiency in the practical implementation production run:
The procedure technology of the debugging of the first, warning concentration complicated loaded down with trivial details, production speed is slow, and product yield is low, production cost is increased.
The second, have a strong impact on environment; Combustion gas in whole debug process in container of every debugging will be discharged once; And then in the container of gas concentration debugging, inject inflammable gas like methane, propane, hydrogen etc. since 0 concentration; Can correctly reach during up to product and to report to the police that this just calculates debugging and finishes in standard warning concentration; Since repetitious adjustment with repeatedly with inflammable gas directly in atmosphere discharging this will impel the surface layer of the earth and atmospheric envelope can gather increasing inflammable gas, these combustible gases are known from experience and are directly endangered biology and human beings'health, aggravate the greenhouse effect of the earth.
Summary of the invention:
The technical matters that the present invention will solve provides that a kind of testing and measuring technology is simple, and production cost is low, reduces the intelligent memory type gas leakage alarm control device of environmental pollution.
Technical solution of the present invention provides a kind of intelligent memory type gas leakage alarm control device; It comprises microcontroller, power module, alarm module, storer, built-in air-sensitive detector and detector amplifying circuit; Said alarm module, storer all are connected with microcontroller; Said built-in air-sensitive detector is connected with microcontroller through the detector amplifying circuit, and said power module connects respectively at alarm module, microcontroller and detector amplifying circuit.
Adopt above-mentioned intelligent memory type gas leakage alarm control device, when debugging, as long as on the built-in air-sensitive detector of product, once inject the inflammable gas of the aerial minimum explosion ratio of inflammable gas; Resistance on the air-sensitive detector can reach certain value like this; Produce a magnitude of voltage and enter into microcontroller through the detector amplifying circuit, microcontroller is noted this magnitude of voltage, and calculates the resistance value on the air-sensitive detector; This resistance value is deposited in the storer, and debugging is accomplished.After this; When if built-in air-sensitive detector touches inflammable gas once more; The detected resistance value of microprocessor through with storer in the resistance value that writes down do comparison; Microcontroller can correctly judge that the concentration of inflammable gas is whether on alarm concentration value; It just can not carry alerting signal to alerting signal output circuit and control circuit if be lower than alarm concentration value, is that it will carry alerting signal to alerting signal output circuit and control circuit if equal the alarm concentration value of being remembered or be higher than alarm concentration value.This intelligent memory type gas leakage alarm control device has the following advantages:
When the first, debugging, the inflammable gas that only need once inject the normal concentration value gets final product, and technology is simple, and efficient is high, and the cost of product is reduced, and output improves.
The second, warning accuracy rate is high, and device stability is good.
Three, owing to adopt disposable memory debugging and Fig. 2 debud mode not to need to debug repeatedly, therefore the amount of the inflammable gas of row in atmosphere 0 is discharged no better than.From then on this industry industry that just guarantees effectively to know clearly can not polluted the environment manufacturing.
As improvement, said intelligent memory type gas leakage alarm control device also comprises control circuit, and said control circuit is connected with power module and microcontroller respectively.Control circuit can be connected with vent fan with the valve starter, is used for the by-pass valve control starter and closes and open vent fan, and the gas leakage situation is in time dealt with.
As improvement; The signal output port that said alarm module comprises the alerting signal output circuit and is used for connecting with the Internet of Things monitor node; Said signal output port is connected with microcontroller through the alerting signal output circuit, and said alerting signal output circuit also is connected with power module.Adopt this structure, alarm module can connector the monitor node of networking, give monitor node through level signal of microcontroller output, thereby can send alarming short message to alarm center or user.
As improvement, it also comprises external air-sensitive detector, and said external air-sensitive detector is connected with microprocessor through the detector amplifying circuit.Increase external air-sensitive detector and can be located at other places that can detect combustible gas leakage, carry out multiple spot and detect, reliability and security are higher.
Description of drawings:
Accompanying drawing 1 is the functional-block diagram of intelligent memory type gas leakage alarm control device of the present invention.
Accompanying drawing 2 is debugging gas injection synoptic diagram of intelligent memory type gas leakage alarm control device of the present invention.
As shown in the figure: 1, gas injection pen, 2, the air-sensitive detector, 3, demarcate the inflammable gas of warning concentration.
Specific embodiment:
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified:
As shown in Figure 1: the present invention provides a kind of intelligent memory type gas leakage alarm control device; It comprises microcontroller, power module, alarm module, storer, built-in air-sensitive detector and detector amplifying circuit; Said alarm module, storer all are connected with microcontroller; Said built-in air-sensitive detector is connected with microcontroller through the detector amplifying circuit, and said power module connects respectively at alarm module, microcontroller and detector amplifying circuit.Said microcontroller adopts single-chip microcomputer; Said power module adopts direct supply, and said storer can be the single-chip microcomputer self-contained storing devices, also can be peripheral memory; Said built-in air-sensitive detector is commercially available gas sensor; Its principle of work is a gas sensor when touching the inflammable gas of variable concentrations, and its resistance value also can change, and said detector amplifying circuit is general amplifying circuit.
The signal output port that said alarm module comprises the alerting signal output circuit and is used for connecting with the Internet of Things monitor node; Said signal output port is connected with microcontroller through the alerting signal output circuit, and said alerting signal output circuit also is connected with power module.Export a level signal during warning; Give the monitor node of Internet of Things through signal output part; Send alarming short message through Internet of Things to the user; As " so-and-so number takes place gas leakage in so-and-so road, and air intake valve is closed " simultaneously this signal also can send to local gas supply merchant, let their the users home place under repair of sending someone.
Said intelligent memory type gas leakage alarm control device also comprises control circuit, and said control circuit is connected with power module and microcontroller respectively.Control circuit can be connected with vent fan with the valve starter, is used for the by-pass valve control starter and closes and open vent fan, and the gas leakage situation is in time dealt with.Said control circuit can also be connected the processing after leaking with the related electrical equipment of gas leakage with indoor other.
As improvement, it also comprises external air-sensitive detector, and said external air-sensitive detector is connected with microprocessor through the detector amplifying circuit.Increase external air-sensitive detector and can be located at other places that can detect combustible gas leakage, carry out multiple spot and detect, reliability and security are higher.
Principle of work of the present invention is: as shown in Figure 2: when debugging; Needing only the inflammable gas that on the built-in air-sensitive detector 2 of product, once injects the aerial minimum LEL of inflammable gas through gas injection pen 1, promptly demarcate the inflammable gas 3 of warning concentration, is the inflammable gas of 10%LEL like calibration value; Resistance on the air-sensitive detector can reach certain value like this; Produce a magnitude of voltage and enter into microcontroller through the detector amplifying circuit, microcontroller is noted this magnitude of voltage, and calculates the resistance value on the air-sensitive detector; This resistance value is deposited in the storer, and debugging is accomplished.After this, if built-in air-sensitive detector touches 10%LEL once more or when being higher than the inflammable gas of 10%LEL concentration, through with storer in the resistance value that writes down do comparison, just can send alerting signal.
Claims (4)
1. intelligent memory type gas leakage alarm control device; It is characterized in that: it comprises microcontroller, power module, alarm module, storer, built-in air-sensitive detector and detector amplifying circuit; Said alarm module, storer all are connected with microcontroller; Said built-in air-sensitive detector is connected with microcontroller through the detector amplifying circuit, and said power module connects respectively at alarm module, microcontroller and detector amplifying circuit.
2. according to the said intelligent memory type of claim 1 gas leakage alarm control device, it is characterized in that: it also comprises control circuit, and said control circuit is connected with power module and microcontroller respectively.
3. according to the said intelligent memory type of claim 1 gas leakage alarm control device; It is characterized in that: the signal output port that said alarm module comprises the alerting signal output circuit and is used for connecting with the Internet of Things monitor node; Said signal output port is connected with microcontroller through the alerting signal output circuit, and said alerting signal output circuit also is connected with power module.
4. according to the said intelligent memory type of claim 1 gas leakage alarm control device, it is characterized in that: it also comprises external air-sensitive detector, and said external air-sensitive detector is connected with microprocessor through the detector amplifying circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101346525A CN102682579A (en) | 2012-05-03 | 2012-05-03 | Intelligent memory type gas leakage alarming control device |
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| CN2012101346525A CN102682579A (en) | 2012-05-03 | 2012-05-03 | Intelligent memory type gas leakage alarming control device |
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| CN102682579A true CN102682579A (en) | 2012-09-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881120A (en) * | 2012-10-09 | 2013-01-16 | 宁波宇宏电气有限公司 | Gas leakage alarm controller with intelligent alarm threshold value and control method thereof |
| CN109118724A (en) * | 2018-10-16 | 2019-01-01 | 四川长虹电器股份有限公司 | A kind of gas detector and its threshold value generation adjusting method of adjustable threshold |
| CN112542034A (en) * | 2020-12-04 | 2021-03-23 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
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| US20040113802A1 (en) * | 2002-12-10 | 2004-06-17 | Industrial Scientific Corporation | Gas detection instrument and method for its operation |
| US20040145485A1 (en) * | 2003-01-24 | 2004-07-29 | Tice Lee D. | Portable combustible gas detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881120A (en) * | 2012-10-09 | 2013-01-16 | 宁波宇宏电气有限公司 | Gas leakage alarm controller with intelligent alarm threshold value and control method thereof |
| CN102881120B (en) * | 2012-10-09 | 2014-07-23 | 宁波宇宏电气有限公司 | Gas leakage alarm controller with intelligent alarm threshold value and control method thereof |
| CN109118724A (en) * | 2018-10-16 | 2019-01-01 | 四川长虹电器股份有限公司 | A kind of gas detector and its threshold value generation adjusting method of adjustable threshold |
| CN112542034A (en) * | 2020-12-04 | 2021-03-23 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
| CN112542034B (en) * | 2020-12-04 | 2022-03-25 | 广州燃气集团有限公司 | Method, system and equipment for identifying micro-small flow leakage of intelligent gas meter |
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Application publication date: 20120919 |