CN202994711U - Gas measurement warning device based on singlechip - Google Patents
Gas measurement warning device based on singlechip Download PDFInfo
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- CN202994711U CN202994711U CN 201220605704 CN201220605704U CN202994711U CN 202994711 U CN202994711 U CN 202994711U CN 201220605704 CN201220605704 CN 201220605704 CN 201220605704 U CN201220605704 U CN 201220605704U CN 202994711 U CN202994711 U CN 202994711U
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- 238000005259 measurement Methods 0.000 title abstract description 5
- 238000005070 sampling Methods 0.000 claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000003321 amplification Effects 0.000 abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 241000269346 Siren Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a gas measurement warning device based on a singlechip. The gas measurement warning device based on the singlechip comprises a main control unit module, a gas sampling module, a signal amplification and conversion module, a button module, a storage module, a display module, a warning module, and an execution module. The gas sampling module collects gas density signals in air in an object region, and then the gas density signals are converted into digital signals which can be processed by a singlechip MC9S12XS128 by the signal amplification and conversion module. The digital signals and a setting warning upper limit value are compared, if the gas density surpasses a threshold value, a singlechip system controls the warning device to give an alarm, and meanwhile controls the execution module to start a motor, and therefore air motion is accelerated, and the gas density is reduced. The gas measurement warning device based on the singlechip has the advantages of being small in sensor drifting, long in maintenance period, simple in maintenance method, strong in mechanical interference resistance, good in reliability, low in cost, and the like.
Description
Technical field
The utility model relates to computer application field, relates to a kind of measurement mechanism, relates in particular to the SCM Based gas surveying warning device that use in the colliery.
Background technology
All can find out from present situation and China's energy structure strategic planning that coal in China is produced, coal is the main energy sources of supporting the Chinese national economy development.Coal production is as the pillar of China's energy industry, and its status will be long-term, stable.But the safety production situation of coal industry at present is very poor, and one of them is the harmfulness of harmful gas, comprises CH14, SO, SO2 etc.Gas (CH14) is the maximum gas of harm under coal mine, and it is to form and the gas of mass storage among the coal seam in coalification course, has the characteristics such as colourless, tasteless, inflammable, explosive.
The gas warning head lamp that present China has used has the advantages such as volume is little, simple in structure, easy for installation, but the problem that exists is that sensor drift is large, periodic maintenance, and needs the cycle of maintenance very short; Maintaining method is complicated, and cost is higher, and anti-mechanical interference performance is relatively poor.
Summary of the invention
The problem that exists in order to solve above-mentioned prior art, the utility model purpose is, proposes a kind of SCM Based gas surveying warning device.
In order to realize above-mentioned task, the technical solution of the utility model is achieved in that
A kind of SCM Based gas surveying warning device, it is characterized in that, comprise main control unit, gas sampling module, signal amplification and modular converter, key-press module, storage module, display module, alarm module and execution module, wherein, signal amplifies the output terminal that is connected to the gas sampling module with modular converter, and key-press module, storage module, display module, alarm module, execution module are connected with main control unit respectively.
Other characteristics of the present utility model are:
16 MC9S12XS128 single-chip microcomputers that described main control unit adopts Freescale company to produce.
Described gas sampling module adopts the resistance-type semiconductor gas sensor.
Described display module adopts the LED5110 display screen.
Described execution module is comprised of photoelectrical coupler MOC3041, controllable silicon SCR and motor.
SCM Based gas surveying warning device of the present utility model, detect the content of methane gas concentration in air by gas sensor both end voltage value in detection gas sampling module, it is the digital signal that MC9S12XS128 can process that the gas concentration simulating signal that signal amplifies and modular converter detects the gas sampling module is amplified with analog to digital conversion.By key-press module, methane gas concentration high alarm setting is set, the main control unit module is stored in the high alarm setting value in AT24C02, prevents loss of data after power down, affects the normal operation of this device.The main control unit module compares the higher limit of digital signal and setting and current gas concentration is presented on the LED5110 display screen, if gas density surpasses the high alarm setting value, buzzer siren in main control unit module controls alarm module and red flashlamp work, the operation valve circuit working of main control unit module controls execution module is accelerated Air Flow simultaneously, reduces gas density.
Description of drawings
Fig. 1 is SCM Based gas surveying warning device schematic block diagram of the present utility model.
Fig. 2 is that gas sampling module and signal amplify and modular converter connecting circuit figure.
Fig. 3 is the key-press module circuit diagram.
Fig. 4 is display module and storage module connecting circuit figure.
Fig. 5 is alarm module connecting circuit figure.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of SCM Based gas surveying warning device schematic block diagram, comprises that main control unit 1, gas sampling module 2, signal amplify and modular converter 3, key-press module 4, storage module 5, display module 6, alarm module 7 and execution module 8.Wherein, gas sampling module 2 is amplified the output terminal that is connected to main control unit 1 with modular converter 3 by signal, and key-press module 4, storage module 5, display module 6, alarm module 7, execution module 8 are connected with main control unit 1 respectively.
In the present embodiment, 16 MC9S12XS128 single-chip microcomputers that main control unit 1 adopts Freescale company to produce.The MC9S12XS128 single-chip microcomputer is powered by 5V, chip internal contains the Flash storer of 128K, the RAM of 8K, the EEPROM of 8K, two-way serial communication interface, one tunnel serial peripheral interface, No. 8 timer passages, the A/D mouth of 2 eight tunnel adjustable conversion accuracies, 8 road PWM outputs, 1 road internal counter etc., but the overshoot to 80 of chip dominant frequency is to 96MHz.Main control unit module acknowledge(ment) signal amplifies the signal with the modular converter transmission, compares according to the signal of transmission and the alarm threshold value of setting, controls the corresponding module action.
Gas sampling module 2 adopts Gas Sensors of Electric Resistance Semiconductors as detecting element, it is high that this sensor has detection sensitivity to the inflammable gas in explosive range, be subjected to background gas, humidity, barometric pressure effect little, the characteristics such as output signal is large, and cost is low, easy to maintenance.Gas Sensors of Electric Resistance Semiconductors adopts the metal oxide ceramic gas sensitive.Because resistance-type semiconductor gas sensor resistance value under different methane gas concentration is different, gas sampling module 2 detects the content of methane gas in current air by the magnitude of voltage that detects resistance-type semiconductor gas sensor two ends, the analog quantity of the methane gas concentration that detects is transferred to signal amplify and modular converter 3.
Fig. 3 is key-press module connecting circuit figure, revises the high alarm setting value by key-press module, and the duty of setting main control unit module etc.Main control unit module 1 is stored in this alarm threshold value in the AT24C02 storage chip after accepting to press the higher limit of key assignments.
Display module 6 adopts the LED5110 display screen, is used for the display alarm higher limit, current system time, the information such as duty.Be illustrated in figure 4 as the connecting circuit figure of display module and memory module.
Alarm module 7 comprises buzzer siren and red flashlamp, surpasses setting high alarm setting value when detecting gas density, the work of main control unit module controls alarm module, buzzer siren warning flashlamp flicker simultaneously.Alarm module connecting circuit figure as shown in Figure 5.
Execution module 8 adopts the method for controlling in real time, comprises photoelectrical coupler MOC3041, controllable silicon SCR and motor.Photoelectrical coupler MOC3041 separates main control unit module Single Chip Microcomputer (SCM) system and controllable silicon SCR circuit, avoid undesired signal in high-pressure process to affect the operation of single-chip microcomputer, controllable silicon SCR is equivalent to a fixing contact, and SCR can open or close power machine under the control of main control unit module.
the specific works process of SCM Based gas surveying warning device is, MC9S12XS128 program initialization after start in the main control unit module, extract the alarm threshold value of preserving in reservoir, after initialization is completed, this device is started working, the content of gas density in the air of gas sampling module Real-time Collection target area, gas density analog signal transmission to the signal that detects is amplified and modular converter, after amplification and conversion, the gas density simulating signal is converted into the digital signal that the unit sheet can be processed, the gas density numerical value that detects is presented on the LED5110 display screen, simultaneously digital signal and alarm threshold value are compared, if the gas density that detects surpasses the high alarm setting value, single-chip microcomputer MC9S12XS128 controls buzzer siren and reports to the police, red flashlamp flicker.Single Chip Microcomputer (SCM) system is controlled the controllable silicon SCR action of execution module simultaneously, opens motor, accelerates cross-ventilation, reduces gas density.
SCM Based gas surveying warning device of the present utility model, utilize the Intelligent Single-Chip Based control technology,, by gas sensing resistance and amplifier, gas signal is changed into electric signal, then convert digital signal to by ADC0809 as control device with the MC9S12XS128 single-chip microcomputer.The advantages such as this device has that sensor drift is little, maintenance period is long, maintaining method is simple, anti-machinery disturbs strong, good reliability, with low cost.
Claims (5)
1. SCM Based gas surveying warning device, it is characterized in that, comprise that main control unit (1), gas sampling module (2), signal amplify and modular converter (3), key-press module (4), storage module (5), display module (6), alarm module (7) and execution module (8); Wherein, gas sampling module (2) is amplified the output terminal that is connected to main control unit (1) with modular converter (3) by signal, key-press module (4), storage module (5), display module (6), alarm module (7) and execution module (8) are connected with main control unit (1) respectively.
2. SCM Based gas surveying warning device as claimed in claim 1, is characterized in that, described main control unit module (1) adopts the MC9S12XS128 single-chip microcomputer.
3. SCM Based gas surveying warning device as claimed in claim 1, is characterized in that, described gas sampling module (2) adopts the resistance-type semiconductor gas sensor.
4. SCM Based gas surveying warning device as claimed in claim 1, is characterized in that, described display module (6) adopts the LED5110 display screen.
5. a kind of SCM Based gas surveying warning device as claimed in claim 1, is characterized in that, described execution module (7) is comprised of photoelectrical coupler MOC3041, controllable silicon SCR and motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605704 CN202994711U (en) | 2012-11-15 | 2012-11-15 | Gas measurement warning device based on singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605704 CN202994711U (en) | 2012-11-15 | 2012-11-15 | Gas measurement warning device based on singlechip |
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| CN202994711U true CN202994711U (en) | 2013-06-12 |
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| CN 201220605704 Expired - Fee Related CN202994711U (en) | 2012-11-15 | 2012-11-15 | Gas measurement warning device based on singlechip |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870006A (en) * | 2017-03-16 | 2017-06-20 | 亿信标准认证集团有限公司 | Methane gas concentration detecting and controlling system up to standard |
| CN107421991A (en) * | 2017-06-13 | 2017-12-01 | 潘志君 | A kind of residues of pesticides and gas detection method, detecting system |
| CN108457698A (en) * | 2018-03-14 | 2018-08-28 | 合肥光万信息科技有限公司 | A kind of mine gas intelligent early-warning device and application system |
| CN108534956A (en) * | 2018-03-14 | 2018-09-14 | 合肥光万信息科技有限公司 | A kind of intelligent gas detection sensor for harmful influence leak detection apparatus |
-
2012
- 2012-11-15 CN CN 201220605704 patent/CN202994711U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870006A (en) * | 2017-03-16 | 2017-06-20 | 亿信标准认证集团有限公司 | Methane gas concentration detecting and controlling system up to standard |
| CN107421991A (en) * | 2017-06-13 | 2017-12-01 | 潘志君 | A kind of residues of pesticides and gas detection method, detecting system |
| CN108457698A (en) * | 2018-03-14 | 2018-08-28 | 合肥光万信息科技有限公司 | A kind of mine gas intelligent early-warning device and application system |
| CN108534956A (en) * | 2018-03-14 | 2018-09-14 | 合肥光万信息科技有限公司 | A kind of intelligent gas detection sensor for harmful influence leak detection apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131115 |