CN206804571U - A kind of alcohol content tester based on STM32 - Google Patents
A kind of alcohol content tester based on STM32 Download PDFInfo
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- CN206804571U CN206804571U CN201720609531.XU CN201720609531U CN206804571U CN 206804571 U CN206804571 U CN 206804571U CN 201720609531 U CN201720609531 U CN 201720609531U CN 206804571 U CN206804571 U CN 206804571U
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- alcohol
- operational amplifier
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 108091000080 Phosphotransferase Proteins 0.000 claims abstract description 14
- 102000020233 phosphotransferase Human genes 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 102000001253 Protein Kinase Human genes 0.000 abstract description 3
- 108060006633 protein kinase Proteins 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
It the utility model is related to a kind of alcohol content tester, more particularly to a kind of alcohol content tester based on STM32.The utility model includes STM32F407 control modules, heating module, alcohol sensor, Signal-regulated kinase, pressure detecting module, digital temperature sensor, display module, sound and light alarm module, data memory module, Keyboard Control interface module, the signal output part of the STM32F407 control modules connects heating module respectively, display module, sound and light alarm module, the signal input part of data memory module, the signal input part of STM32F407 control modules connects Signal-regulated kinase respectively, pressure detecting module, digital temperature sensor, the signal output part of Keyboard Control interface module, the signal output part of the heating module is connected by alcohol sensor with the signal input part of Signal-regulated kinase.The accuracy of this alcohol content tester detection is high and simple in construction, and cost is cheap, it is easy to accomplish.
Description
Technical field
It the utility model is related to a kind of alcohol content tester, more particularly to a kind of alcohol content tester based on STM32.
Background technology
Showing through ASSOCIATE STATISTICS, driver drives when intoxicated, and the possibility that accident occurs is 15 times usually, and 30 percent
Road traffic accident is due to drive when intoxicated, and caused by drunk driving, there is 59 percent and wine in driver's death archives
After drive it is relevant, and drink drive when intoxicated, due to the stimulation and anesthetic effect of alcohol, make the trick tactile of people relatively low than usual,
General is difficult control throttle and brake and steering, drives when intoxicated and seriously endangers traffic safety, bites off one's own head.
Traditional alcohol content tester directly gathers gas usually using alcohol sensor, causes if detected person mismatches
Do not blow up gas or do not blow, then measurement result can be caused inaccurate, and traditional alcohol content tester cost is high, knot
Structure is complicated.
Utility model content
The utility model is in order to overcome the above-mentioned deficiencies of the prior art, there is provided a kind of alcohol content tester based on STM32,
Of the present utility model simple in construction, cost is cheap, it is easy to accomplish.
Solves the problems, such as techniques discussed above, the technical scheme that the utility model is taken is：
A kind of alcohol content tester based on STM32 includes STM32F407 control modules, heating module, alcohol sensor, letter
Number conditioning module, pressure detecting module, digital temperature sensor, display module, sound and light alarm module, data memory module, key
Disk control interface module, the signal output part of the STM32F407 control modules connect heating module, display module, sound respectively
The signal input part of light alarm module, data memory module, the signal input part of STM32F407 control modules connect signal respectively
Conditioning module, pressure detecting module, digital temperature sensor, the signal output part of Keyboard Control interface module, the heated mould
The signal output part of block is connected by alcohol sensor with the signal input part of Signal-regulated kinase.
Preferably, the Signal-regulated kinase includes the first operational amplifier, the negative pole letter of first operational amplifier
Number input connects first resistor R1 one end, the second slide rheostat R2 one end, the first electric capacity C1 one end respectively, described
The signal output part of second slide rheostat R2 other end connection alcohol sensor, the signal output part of the first operational amplifier
3rd resistor R3 one end is connected, the other end of the 3rd resistor R3 connects the 4th resistance R4 one end, the second electric capacity respectively
C2 one end, the other end of the 4th resistance R4 connect the positive signal input of the second operational amplifier, the 3rd electricity respectively
Hold C3 one end, the other end of the 3rd electric capacity C3 connects the 5th resistance R5 one end and ground connection, the 5th resistance R5's
The other end connects the 6th resistance R6 one end and the negative signal input of the second operational amplifier, second electric capacity respectively
The C2 other end, the 6th resistance R6 other end are all connected with the signal output part and the 3rd operation amplifier of the second operational amplifier
The positive signal input of device, the negative signal input of the 3rd operational amplifier connect the 3rd operational amplifier respectively
One end of signal output part and the 7th resistance R7, the other end connection STM32F407 control modules of the 7th resistance R7
Signal input part.
Preferably, the alcohol sensor is semiconductor-type MQ3 type alcohol sensors.
Preferably, the sound and light alarm module includes flashing light and buzzer.
It is further preferred that the data memory module is flash storage.
It is further preferred that the Keyboard Control interface module is 4 × 4 matrix keyboards.
It is further preferred that the display module is LCD display.
The beneficial effects of the utility model are：
(1), the utility model include STM32F407 control modules, heating module, alcohol sensor, Signal-regulated kinase,
Pressure detecting module, digital temperature sensor, display module, sound and light alarm module, data memory module, Keyboard Control interface mould
Block, pressure detecting module are used cooperatively with alcohol sensor, when breath pressure reaches certain value, STM32F407 control modules
Just the gas in alcohol sensor is sampled, ensure that the validity and accuracy of sampling, therefore utilize this alcohol detection
The accuracy of instrument detection is high and simple in construction, and cost is cheap, it is easy to accomplish.
(2), the heating module is used to heat the alcohol of detected person's exhalation, efficiently avoid environment temperature
Influence to alcohol gas conversion ratio, it ensure that the accuracy of assay.
(3), the STM32F407 control modules employ STM32F407 chips, and this chip cost is cheap, signal transacting
Speed is fast, it is only necessary to builds simple peripheral circuit and corresponding function, and the circuit structure letter of Signal-regulated kinase can be achieved
It is single.
Brief description of the drawings
The content of every width accompanying drawing expression in the utility model specification and the mark in figure are briefly described below：
Fig. 1 is that circuit of the present utility model forms structured flowchart；
Fig. 2 is the circuit theory diagrams of Signal-regulated kinase of the present utility model.
Reference implication in figure is as follows：
1-STM32F407 control module 2-heating module, 3-alcohol sensors
4-Signal-regulated kinase, 5-pressure detecting, 6-digital temperature sensor of module
7-display module, 8-sound and light alarm module, 9-data memory module
10-Keyboard Control interface module
Embodiment
It is the shape of each component for example involved to specific embodiment of the present utility model, construction, each below against accompanying drawing
The effect of mutual alignment and annexation, each several part between part and operation principle etc. are described in further detail：
As shown in figure 1, a kind of alcohol content tester based on STM32 include STM32F407 control modules 1, heating module 2,
Alcohol sensor 3, Signal-regulated kinase 4, pressure detecting module 5, digital temperature sensor 6, display module 7, sound and light alarm mould
Block 8, data memory module 9, Keyboard Control interface module 10, the signal output part of the STM32F407 control modules 1 connect respectively
Connect heating module 2, display module 7, sound and light alarm module 8, the signal input part of data memory module 9, STM32F407 control moulds
The signal input part of block 1 connects Signal-regulated kinase 4, pressure detecting module 5, digital temperature sensor 6, Keyboard Control and connect respectively
The signal output part of mouth mold block 10, the signal output part of the heating module 2 pass through alcohol sensor 3 and Signal-regulated kinase 4
Signal input part be connected.
For example, the alcohol sensor 3 is semiconductor-type MQ3 type alcohol sensors；The sound and light alarm module 8 includes dodging
Lamp and buzzer；The data memory module 9 is flash storage or ROM memory；The Keyboard Control interface module 10
For 4 × 4 matrix keyboards；The display module 7 is LCD display.
The heating module 2 is used for the alcohol for heating detected person's exhalation, changes alcohol gas more abundant.
The memory module 9 is used for the information for storing STM32F407 control modules 1.
The Keyboard Control interface module 10 uses ATMEGA16 PA mouths to belong to non-as input through keyboard mouth, such keyboard
Encoded keyboard, realize the man-machine interaction between whole system.
The utility model when in use, can coordinate to be used with software of the prior art.With reference to existing
Operation principle of the present utility model is described software in technology.
As shown in Fig. 2 the Signal-regulated kinase 4 includes the first operational amplifier, first operational amplifier is born
Pole signal input part connects first resistor R1 one end, the second slide rheostat R2 one end, the first electric capacity C1 one end respectively,
The signal output part of the other end connection alcohol sensor 3 of the second slide rheostat R2, the signal of the first operational amplifier
Output end connection 3rd resistor R3 one end, the other end of the 3rd resistor R3 connect the 4th resistance R4 one end, the respectively
Two electric capacity C2 one end, the other end of the 4th resistance R4 connect respectively the positive signal input of the second operational amplifier,
3rd electric capacity C3 one end, the other end of the 3rd electric capacity C3 connect the 5th resistance R5 one end and ground connection, the 5th electricity
The resistance R5 other end connects the 6th resistance R6 one end and the negative signal input of the second operational amplifier respectively, and described the
The two electric capacity C2 other end, the 6th resistance R6 other end is all connected with the signal output part and the 3rd fortune of the second operational amplifier
The positive signal input of amplifier is calculated, the negative signal input of the 3rd operational amplifier connects the 3rd computing and put respectively
The big signal output part of device and the 7th resistance R7 one end, the other end connection STM32F407 controls of the 7th resistance R7
The signal input part of module 1.
For example, first operational amplifier, the second operational amplifier, the model of the 3rd operational amplifier are LM358.
To make technical solutions of the utility model of greater clarity, below by way of a specific embodiment to of the present utility model
The course of work illustrates.
When detected person's exhaled gas is to this alcohol content tester, pressure detecting module 5 will detect first expiratory pressure
Power and expiratory duration deliver to the signal input part of STM32F407 control modules 1, and the STM32F407 control modules 1 judge to exhale
Whether atmospheric pressure and expiratory duration are more than preset value, if being less than preset value, LCD display reminds the personnel of being detected to examine again
Survey, if being more than preset value, alcohol sensor 3 gathers the alcohol of characteristics of contaminated respiratory droplets, meanwhile, heating module 2 enters to the alcohol of exhalation
Row heating, alcohol sensor 3 transmit the signal of collection to STM32F407 control modules 1, and STM32F407 control modules 1 are by mould
Intend signal and be converted to data signal, flashing light is bright if people's exhaled gas contains alcohol, buzzer rings, by 4 × 4 matrix keyboards come
Control the opening and closing of this alcohol content tester.In summary, the utility model ensure that the validity and accuracy of detection.
Above content is to combine the further description that specific preferred embodiment is made to the utility model, it is impossible to is recognized
Determine specific embodiment of the present utility model and be confined to these explanations.For the common skill of the utility model art
For art personnel, the other embodiment that is drawn in the case where not departing from the technical solution of the utility model should be included in this practicality
In new protection domain.
Claims (7)
- A kind of 1. alcohol content tester based on STM32, it is characterised in that：Including STM32F407 control modules (1), heating module (2), alcohol sensor (3), Signal-regulated kinase (4), pressure detecting module (5), digital temperature sensor (6), display module (7), sound and light alarm module (8), data memory module (9), Keyboard Control interface module (10), the STM32F407 control mould The signal output part of block (1) connects heating module (2), display module (7), sound and light alarm module (8), data memory module respectively (9) signal input part, the signal input part of STM32F407 control modules (1) connect Signal-regulated kinase (4), pressure respectively Detection module (5), digital temperature sensor (6), the signal output part of Keyboard Control interface module (10), the heating module (2) signal output part is connected by alcohol sensor (3) with the signal input part of Signal-regulated kinase (4).
- A kind of 2. alcohol content tester based on STM32 as claimed in claim 1, it is characterised in that：The Signal-regulated kinase (4) the first operational amplifier is included, the negative signal input of first operational amplifier connects first resistor R1's respectively One end, the second slide rheostat R2 one end, the first electric capacity C1 one end, the other end connection of the second slide rheostat R2 The signal output part of alcohol sensor (3), the signal output part connection 3rd resistor R3 of the first operational amplifier one end are described The 3rd resistor R3 other end connects the 4th resistance R4 one end, the second electric capacity C2 one end respectively, the 4th resistance R4's The other end connects the positive signal input of the second operational amplifier, the 3rd electric capacity C3 one end, the 3rd electric capacity C3 respectively The other end connect the 5th resistance R5 one end and ground connection, the other end of the 5th resistance R5 connect the 6th resistance R6's respectively One end and the negative signal input of the second operational amplifier, the other end of the second electric capacity C2, the 6th resistance R6 it is another One end is all connected with the signal output part of the second operational amplifier and the positive signal input of the 3rd operational amplifier, and described The negative signal input of three operational amplifiers connects the signal output part and the 7th resistance R7 of the 3rd operational amplifier respectively One end, the 7th resistance R7 the other end connection STM32F407 control modules (1) signal input part.
- A kind of 3. alcohol content tester based on STM32 as claimed in claim 2, it is characterised in that：The alcohol sensor (3) For semiconductor-type MQ3 type alcohol sensors.
- A kind of 4. alcohol content tester based on STM32 as claimed in claim 3, it is characterised in that：The sound and light alarm module (8) flashing light and buzzer are included.
- A kind of 5. alcohol content tester based on STM32 as claimed in claim 4, it is characterised in that：The data memory module (9) it is flash storage.
- A kind of 6. alcohol content tester based on STM32 as claimed in claim 5, it is characterised in that：The Keyboard Control interface Module (10) is 4 × 4 matrix keyboards.
- A kind of 7. alcohol content tester based on STM32 as claimed in claim 1, it is characterised in that：The display module (7) is LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609531.XU CN206804571U (en) | 2017-05-27 | 2017-05-27 | A kind of alcohol content tester based on STM32 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609531.XU CN206804571U (en) | 2017-05-27 | 2017-05-27 | A kind of alcohol content tester based on STM32 |
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| Publication Number | Publication Date |
|---|---|
| CN206804571U true CN206804571U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720609531.XU Expired - Fee Related CN206804571U (en) | 2017-05-27 | 2017-05-27 | A kind of alcohol content tester based on STM32 |
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| Country | Link |
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| CN (1) | CN206804571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121456A (en) * | 2017-05-27 | 2017-09-01 | 安徽师范大学 | A kind of alcohol content tester based on STM32 |
-
2017
- 2017-05-27 CN CN201720609531.XU patent/CN206804571U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121456A (en) * | 2017-05-27 | 2017-09-01 | 安徽师范大学 | A kind of alcohol content tester based on STM32 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 Termination date: 20200527 |