CN205538787U - Multi -functional gas concentration detection appearance - Google Patents
Multi -functional gas concentration detection appearance Download PDFInfo
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- CN205538787U CN205538787U CN201620238895.7U CN201620238895U CN205538787U CN 205538787 U CN205538787 U CN 205538787U CN 201620238895 U CN201620238895 U CN 201620238895U CN 205538787 U CN205538787 U CN 205538787U
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Abstract
The utility model discloses a multi -functional gas concentration detection appearance, multi -functional gas concentration detection appearance includes atxmega64D4 microcontroller, signal processing and collection system, display device, wireless communication device, audible -visual annunciator and button device, the output of button device links to each other with atxmega64D4 microcontroller's input, signal processing and collection system's input links to each other with atxmega64D4 microcontroller's output, display device, wireless communication device, audible -visual annunciator link to each other with signal processing and collection system's output, signal processing and collection system mainly include methane measuring device, carbon monoxide measuring device, the utility model has the advantages of: the utility model relates to a multi -functional gas concentration detection appearance both can detect the methane gas, can detect carbon monoxide gas simultaneously again, had the detection function of two unifications, can also pass through wireless interface and insert in PDA, the individual soldier's rescue system.
Description
Technical field
This utility model relates to safety monitoring system technical field, particularly to a kind of multifunctional gas concentration detector.
Background technology
Coal is that archaeophyte is imbedded in underground and experienced by biochemistry and the solid combustible mineral that gradually form of physicochemical change of complexity, is a kind of solid combustible organic rock, mainly by plant remains through biological chemistry action, changes through geologic process again and form after burying.Coal is described as the gold of black by people, the grain of industry, and it has been one of main energy sources that human world uses since 18th century.Owing to being limited by conditions such as nature geological conditions, underground mining condition, miner's technical ability condition, technology and equipments, there is the problems such as security reliability is poor, security incident frequency is high in colliery always.
Current along with the development of mining technique, the safety of underground work staff is also required to more and more secure, but the mechanization degree still suffering from a lot of mining firm is low, the life security of the staff of scene mining is caused certain potential threat, detection and warning in particular for methane gas still also exist potential safety hazard, and the serious accident caused due to gas leakage every year is the most continuous.Although mine gas explosion accident is inevitable, but effectively can be taken precautions against by technical force, loss is minimized.If notifying that personnel in the pit withdraws in time, the fortuitous casualty of personnel will be avoided.And for the master of ore deposit, then need only to spend the least investment, it is possible to install umbrella and alarm for colliery, be substantially reduced accident rate.Therefore detection and warning to methane gas are a necessary job.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of multifunctional gas concentration detector can monitored methane and the concentration of carbon monoxide simultaneously and can externally carry out radio communication.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of multifunctional gas concentration detector, its innovative point is: described multifunctional gas concentration detector includes Atxmega64D4 microcontroller, signal processing and harvester, display device, radio communication device, audible-visual annunciator and key device；
The outfan of described key device is connected with the input of Atxmega64D4 microcontroller, the input of described signal processing and harvester is connected with the outfan of Atxmega64D4 microcontroller, and described display device, radio communication device, audible-visual annunciator are connected with the outfan of signal processing and harvester；
Described signal processing and harvester mainly include methane measurement apparatus, carbon monoxide measurement apparatus；Described methane measurement apparatus is the Wheatstone bridge being made up of two sensor sensing elements and two fixed resistances, described sensing element is divided into black element and white element, the surface dip-coating of described black element has platinum metal catalysts, described white element surface is without catalyst, described platinum filament black, white element is bridge resistance and is again heater, and described two fixed resistance R1, R2 match with black-and-white component resistance；Described carbon monoxide measurement apparatus uses electrochemical principle, and it includes working electrode WE, auxiliary electrode CE and reference electrode RE, uses electrochemical principle；
Described display device uses OLED liquid crystal screen, described OLED liquid crystal screen uses OLED backlight show, under parallel schema to OLED write video data；
Described radio communication device is NRF2401 wireless communications application circuit, and it includes these 6 functional interfaces of POWER-nREF, CE-nREF, CS-nREF, DR1-nREF, CLK1-nREF and DATA-nREF, respectively with 6 I/O mouths be connected.
Further, described multifunctional gas concentration detector also includes a cell apparatus.
Further, described signal processing and harvester also include battery electric quantity measurement apparatus.
The utility model has the advantage of:
(1) a kind of multifunctional gas concentration detector both can detect methane gas, can detect again CO (carbon monoxide converter) gas simultaneously, have two-in-one detection function.
(2) a kind of multifunctional gas concentration detector selects Atxmega64D4 as controller, and it possesses 12,8 tunnel A/D, RTC function, low-power consumption.
(3) a kind of multifunctional gas concentration detector both can use as single product, can realize radio communication with colliery PDA device, down-hole individual soldier's rescue system again.
(4) described multifunctional gas concentration detector also includes a cell apparatus, it is possible to power in real time, simple in construction and easy for installation.
(5) described signal processing and harvester also include battery electric quantity measurement apparatus, can detect battery electric quantity in real time, prevent this detector from quitting work, it is impossible to detection methane and gas concentration, thus threaten the life security of staff.
Accompanying drawing explanation
Fig. 1 is the system principle diagram of this utility model a kind of multifunctional gas concentration detector.
Fig. 2 is the methane measuring principle figure of this utility model a kind of multifunctional gas concentration detector.
Fig. 3 is that the carbon monoxide probe of this utility model a kind of multifunctional gas concentration detector processes circuit.
Fig. 4 is the nRF2401 communications applications circuit of this utility model a kind of multifunctional gas concentration detector.
Fig. 5 is the software flow design drawing of this utility model a kind of multifunctional gas concentration detector.
Detailed description of the invention
As it is shown in figure 1, be this utility model one multifunctional gas concentration detector, it includes Atxmega64D4 microcontroller 1, signal processing and harvester 2, display device 3, radio communication device 4, audible-visual annunciator 5, cell apparatus 6 and key device 7.
The outfan of key device 6 is connected with the input of Atxmega64D4 microcontroller 1, the input of signal processing and harvester 2 is connected with the outfan of Atxmega64D4 microcontroller 1, display device 3, radio communication device 4, audible-visual annunciator 5 are connected with the outfan of signal processing and harvester 2, cell apparatus 6 is connected with Atxmega64D4 microcontroller 1, it is thus possible to power for each device.
Signal processing and harvester 2 mainly include methane measurement apparatus, carbon monoxide measurement apparatus, battery electric quantity measurement apparatus.As shown in Figure 2, methane measurement apparatus is the Wheatstone bridge being made up of two sensor sensing elements and two fixed resistances, sensing element is divided into black element and white element, the surface dip-coating of black element has platinum metal catalysts, white element surface is without catalyst, the platinum filament of element black, white is bridge resistance and is again heater, and two fixed resistance R1, R2 match with black-and-white component resistance.In time without methane gas, bridge balance, output signal is zero；When having methane gas, catalysis oxidation is carried out at black element surface, release heat, elevating the temperature, device resistance raises, and white component resistance resistance is constant, electric bridge disequilibrium, export certain voltage signal, and the signal of output is directly proportional to methane gas content, the actual concentrations of methane in current environment can be calculated by gathering bridge voltage.
As it is shown on figure 3, carbon monoxide measurement apparatus uses electrochemical principle, it includes working electrode WE, auxiliary electrode CE and reference electrode RE, uses electrochemical principle.When CO (carbon monoxide converter) gas enters sensor, the carbon monoxide in tested gas occurs electroxidation to react on the working electrode (s.According to Fick's law of diffusion, between WE-CE, form electric current I, be acquired in Chip Microcomputer A/D C by electric current is sampled, amplifies output.
Display device 3 uses OLED liquid crystal screen, OLED liquid crystal screen uses OLED backlight show, under parallel schema to OLED write video data, it is adaptable to the fields such as various instruments, Industry Control, office automation.
As shown in Figure 4, radio communication device 4 is NRF2401 wireless communications application circuit, and it includes these 6 functional interfaces of POWER-nREF, CE-nREF, CS-nREF, DR1-nREF, CLK1-nREF and DATA-nREF, respectively with 6 I/O mouths be connected.The RF signal of ANT1, ANT2 pin output balance is to antenna, and wherein ANT2 output signal is after LC series connection and parallel circuit frequency-selective filtering, then spreads out of through antenna；And this signal is again through inductive feedback to ANT1, constitutes the feedback of internal PA circuit.
As it is shown in figure 5, the software flow design of a kind of multifunctional gas concentration detector, software mainly realizes the functions such as signals collecting, man machine interface process, parameter setting, communication process.In terms of signal acquisition process, use continuity way, be sequentially completed the collection to signals such as methane, carbon monoxide, electricity；In order to reduce the error that external disturbance is brought, use median filtering method to obtain final environment parameter after being filtered, realized the display of each environment parameter the most under the control of the micro-controller by liquid-crystal apparatus, realize the radio communication with external equipment simultaneously.
During use, after staff enters coal mine, multifunctional gas concentration detector is opened by key device, carbon monoxide measurement apparatus, methane measurement apparatus, battery electric quantity measurement apparatus detects carbon monoxide in mine simultaneously, the gas concentration of methane and the electricity of battery, transmit the signals to OLED liquid crystal screen, contrast with standard gas concentration again, if higher than standard gas concentration, can report to the police, in addition, these signals also by wireless device transmissions to colliery PDA device, down-hole individual soldier's rescue system, enable the surrounding enviroment of personnel in personnel recognize well in time outside well, thus prevent unexpected generation.
Of the present utility model ultimate principle and principal character have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (3)
1. a multifunctional gas concentration detector, it is characterised in that: described multifunctional gas concentration detector includes Atxmega64D4 microcontroller, signal processing and harvester, display device, radio communication device, audible-visual annunciator and key device；
The outfan of described key device is connected with the input of Atxmega64D4 microcontroller, the input of described signal processing and harvester is connected with the outfan of Atxmega64D4 microcontroller, and described display device, radio communication device, audible-visual annunciator are connected with the outfan of signal processing and harvester；
Described signal processing and harvester mainly include methane measurement apparatus, carbon monoxide measurement apparatus；Described methane measurement apparatus includes the Wheatstone bridge being made up of two sensor sensing elements and two fixed resistances, described sensing element is divided into black element and white element, the surface dip-coating of described black element has platinum metal catalysts, described white element surface is without catalyst, described platinum filament black, white element is bridge resistance and is again heater, and described two fixed resistance R1, R2 match with black-and-white component resistance；Described carbon monoxide measurement apparatus uses electrochemical principle, and it includes working electrode WE, auxiliary electrode CE and reference electrode RE；
Described display device uses OLED liquid crystal screen, described OLED liquid crystal screen uses OLED backlight show, under parallel schema to OLED write video data；
Described radio communication device is NRF2401 wireless communications application circuit, and it includes these 6 functional interfaces of POWER-nREF, CE-nREF, CS-nREF, DR1-nREF, CLK1-nREF and DATA-nREF, respectively with 6 I/O mouths be connected.
A kind of multifunctional gas concentration detector the most according to claim 1, it is characterised in that: described multifunctional gas concentration detector also includes a cell apparatus.
A kind of multifunctional gas concentration detector the most according to claim 1, it is characterised in that: described signal processing and harvester also include battery electric quantity measurement apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238895.7U CN205538787U (en) | 2016-03-28 | 2016-03-28 | Multi -functional gas concentration detection appearance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620238895.7U CN205538787U (en) | 2016-03-28 | 2016-03-28 | Multi -functional gas concentration detection appearance |
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| CN205538787U true CN205538787U (en) | 2016-08-31 |
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| CN201620238895.7U Expired - Fee Related CN205538787U (en) | 2016-03-28 | 2016-03-28 | Multi -functional gas concentration detection appearance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699430A (en) * | 2016-03-28 | 2016-06-22 | 南通理工学院 | Multifunctional gas concentration detector |
| CN106770546A (en) * | 2016-12-05 | 2017-05-31 | 河北工业大学 | For the preparation method of the catalysis type gas sensor of methane gas detection |
-
2016
- 2016-03-28 CN CN201620238895.7U patent/CN205538787U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699430A (en) * | 2016-03-28 | 2016-06-22 | 南通理工学院 | Multifunctional gas concentration detector |
| CN106770546A (en) * | 2016-12-05 | 2017-05-31 | 河北工业大学 | For the preparation method of the catalysis type gas sensor of methane gas detection |
| CN106770546B (en) * | 2016-12-05 | 2019-02-19 | 河北工业大学 | The production method of catalysis type gas sensor for methane gas detection |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200328 |