CN204903502U - Gas detection alarm instrument - Google Patents
Gas detection alarm instrument Download PDFInfo
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- CN204903502U CN204903502U CN201520633456.1U CN201520633456U CN204903502U CN 204903502 U CN204903502 U CN 204903502U CN 201520633456 U CN201520633456 U CN 201520633456U CN 204903502 U CN204903502 U CN 204903502U
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- microprocessor
- signal input
- input unit
- transducer
- gas detecting
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Abstract
The utility model discloses a gas detection alarm instrument, enlarge module, AD converter, filter, microprocessor including a plurality of signal input unit, preceding stage, every signal input unit is connected to electric current voltage conversion module by a gas sensor, and in a plurality of signal input unit, at least one signal input unit lug connection enlargies the module to the preceding stage, and four at least signal input units are connected to the preceding stage through gating switch and enlarge the module, and gating switch is connected to microprocessor, the preceding stage is enlargied the module and is connected to the AD converter, and an output branch road of AD converter directly is connected with microprocessor, and another output branch road of AD converter is connected to microprocessor through the filter. The utility model discloses can be as required and open or close gaseous monitoring channel's gaseous detection device to adapt to the requirement of different detection ring borders to detecting the precision, but to the monitoring channel's of a plurality of gatings design, realized the control of different measurement accuracy and range.
Description
Technical field
The utility model relates to a kind of gas detecting and alarming instrument, the alarm that specifically a kind of accuracy of detection is controlled, belongs to gas detection equipment technical field.
Background technology
Existing gas-detecting device, range and precision set when dispatching from the factory, just there are time such as general gas detection alarm device dispatches from the factory 4 gas sensors, so gas-detecting device run process in, 4 gas sensors incite somebody to action continuous firing always, so just easily cause the waste of resource, decrease the serviceable life of whole gas-detecting device.And in generally good environment, range and precision cannot be regulated by index environmentally, make some gas-detecting device occur the situation of wasting one's talent on a petty job or small wood is large.
Based on the problems referred to above, need to design and a kind ofly can open or close the gas-detecting device of gas detect passage, to adapt to the requirement of different testing environment to accuracy of detection as required.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of gas detecting and alarming instrument, to the design of multiple gateable sense channel, achieves the control of different measuring precision and range.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
Gas detecting and alarming instrument, comprise several signal input unit, prime amplification module, AD transducer, filter, microprocessor, wherein each signal input unit is connected to current/voltage-converted module by a gas sensor, in signal input unit described in several, signal input unit described at least one is directly connected to prime amplification module, at least four described signal input unit are connected to prime amplification module by gating switch, and described gating switch is connected to microprocessor; Described prime amplification module is connected to AD transducer, and an output branch road of described AD transducer is directly connected with microprocessor, and another output branch road of described AD transducer is connected to microprocessor by filter.
Also comprise test value display unit, be connected with described microprocessor, receive the signal of described microprocessor output and show.Test value display unit is made up of 8279 intelligent chips and peripheral circuit.
Also comprise LED state display unit, be connected with described microprocessor, receive high level or the low level of described microprocessor, when described microprocessor exports high level to described LED state display unit, LED state display unit is luminous, not luminous during output low level.
Also comprise acoustic alarm device, described acoustic alarm device is connected with microprocessor, and controls by the break-make of microprocessor, when microprocessor and the conducting of acoustic alarm device, and acoustic alarm device sounding.
Further, described acoustic alarm device adopts hummer.
Also comprise solid-state relay, described solid-state relay is connected with microprocessor, in order to power to the power supply interface of described microprocessor.
Also comprise finger-impu system, described finger-impu system is connected with the signal control end of microprocessor, in order to regulate the parameter on microprocessor.Keyboard adopts thoughts membrane keyboard.
Described microprocessor adopts 8032 single-chip microcomputers; Described AD transducer adopts biproduct somatotype 7109A/D transducer.
The utility model beneficial effect:
The gas-detecting device of gas detect passage can be opened or closed as required, to adapt to the requirement of different testing environment to accuracy of detection, to the design of multiple gateable sense channel, achieve the control of different measuring precision and range.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is the modular structure schematic diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the gas detecting and alarming instrument of the utility model embodiment, comprise several signal input unit 1, prime amplification module 2, AD transducer 3, filter 4, microprocessor 5, wherein each signal input unit 1 is connected to current/voltage-converted module 11 by a gas sensor, in signal input unit 1 described in several, signal input unit described at least one is directly connected to prime amplification module 2, at least four described signal input unit 1 are connected to prime amplification module by gating switch, and described gating switch is connected to microprocessor; Described prime amplification module is connected to AD transducer, and an output branch road of described AD transducer is directly connected with microprocessor, and another output branch road of described AD transducer is connected to microprocessor by filter.
In the technical program, because part signal input block 1 is directly connected to prime amplification module, be equivalent to normal open detection path; Signal input unit 1 is then connected with prime amplification module 2 by gating switch 6 more, gating switch 6 then controls break-make by microprocessor 5, these signal input unit 1 be connected with gating switch 6 as normally closed sense channel, just can be opened and used by microprocessor when needs.
Also comprise test value display unit 51, be connected with described microprocessor, receive the signal of described microprocessor output and show.Test value display unit is made up of 8279 intelligent chips and peripheral circuit.
Also comprise LED state display unit 52, be connected with described microprocessor, receive high level or the low level of described microprocessor, when described microprocessor exports high level to described LED state display unit, LED state display unit is luminous, not luminous during output low level.
Also comprise acoustic alarm device 53, described acoustic alarm device is connected with microprocessor, and controls by the break-make of microprocessor, when microprocessor and the conducting of acoustic alarm device, and acoustic alarm device sounding.
Further, described acoustic alarm device 53 adopts hummer.
Also comprise solid-state relay 54, described solid-state relay is connected with microprocessor, in order to power to the power supply interface of described microprocessor.
Also comprise finger-impu system 55, described finger-impu system is connected with the signal control end of microprocessor, in order to regulate the parameter on microprocessor.Keyboard adopts thoughts membrane keyboard.
Described microprocessor adopts 8032 single-chip microcomputers; Described AD transducer adopts biproduct somatotype 7109A/D transducer.
The utility model beneficial effect:
The gas-detecting device of gas detect passage can be opened or closed as required, to adapt to the requirement of different testing environment to accuracy of detection, to the design of multiple gateable sense channel, achieve the control of different measuring precision and range.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. gas detecting and alarming instrument, comprise several signal input unit, prime amplification module, AD transducer, filter, microprocessor, it is characterized in that, wherein each signal input unit is connected to current/voltage-converted module by a gas sensor, in signal input unit described in several, signal input unit described at least one is directly connected to prime amplification module, at least four described signal input unit are connected to prime amplification module by gating switch, and described gating switch is connected to microprocessor; Described prime amplification module is connected to AD transducer, and an output branch road of described AD transducer is directly connected with microprocessor, and another output branch road of described AD transducer is connected to microprocessor by filter.
2. gas detecting and alarming instrument as claimed in claim 1, is characterized in that, also comprise test value display unit, be connected with described microprocessor, receives the signal of described microprocessor output and shows.
3. gas detecting and alarming instrument as claimed in claim 1, it is characterized in that, also comprise LED state display unit, be connected with described microprocessor, receive high level or the low level of described microprocessor, when described microprocessor exports high level to described LED state display unit, LED state display unit is luminous, not luminous during output low level.
4. gas detecting and alarming instrument as claimed in claim 1, it is characterized in that, also comprise acoustic alarm device, described acoustic alarm device is connected with microprocessor, and controls by the break-make of microprocessor, when microprocessor and the conducting of acoustic alarm device, acoustic alarm device sounding.
5. gas detecting and alarming instrument as claimed in claim 4, is characterized in that, described acoustic alarm device adopts hummer.
6. gas detecting and alarming instrument as claimed in claim 1, it is characterized in that, also comprise solid-state relay, described solid-state relay is connected with microprocessor, in order to power to the power supply interface of described microprocessor.
7. gas detecting and alarming instrument as claimed in claim 1, it is characterized in that, also comprise finger-impu system, described finger-impu system is connected with the signal control end of microprocessor.
8. gas detecting and alarming instrument as claimed in claim 1, it is characterized in that, described microprocessor adopts 8032 single-chip microcomputers; Described AD transducer adopts biproduct somatotype 7109A/D transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633456.1U CN204903502U (en) | 2015-08-20 | 2015-08-20 | Gas detection alarm instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633456.1U CN204903502U (en) | 2015-08-20 | 2015-08-20 | Gas detection alarm instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903502U true CN204903502U (en) | 2015-12-23 |
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ID=54925669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520633456.1U Expired - Fee Related CN204903502U (en) | 2015-08-20 | 2015-08-20 | Gas detection alarm instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204903502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613915A (en) * | 2018-07-16 | 2018-10-02 | 济南兰光机电技术有限公司 | A kind of OTR oxygen transmission rate test device, system and method |
-
2015
- 2015-08-20 CN CN201520633456.1U patent/CN204903502U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613915A (en) * | 2018-07-16 | 2018-10-02 | 济南兰光机电技术有限公司 | A kind of OTR oxygen transmission rate test device, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20210820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |