CN203745466U - Detector for alcohol content of exhaled air - Google Patents
Detector for alcohol content of exhaled air Download PDFInfo
- Publication number
- CN203745466U CN203745466U CN201320884815.1U CN201320884815U CN203745466U CN 203745466 U CN203745466 U CN 203745466U CN 201320884815 U CN201320884815 U CN 201320884815U CN 203745466 U CN203745466 U CN 203745466U
- Authority
- CN
- China
- Prior art keywords
- alcohol content
- air blowing
- detector
- main control
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000007664 blowing Methods 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000003321 amplification Effects 0.000 claims abstract description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 11
- 230000003993 interaction Effects 0.000 claims abstract description 9
- 230000006698 induction Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The utility model relates to a detector for alcohol content of exhaled air. The detector for the alcohol content of the exhaled air comprises a main control unit, an alcohol content detection unit, a man-machine interaction unit and an air blowing detection unit, wherein an output of the air blowing detection unit is connected with the alcohol content detection unit by a pipeline; the alcohol content detection unit outputs a detection signal to the main control unit; the man-machine interaction unit comprises a key circuit, a display circuit and an acousto-optic alarming circuit and is used for receiving an operation instruction of a user and displaying the alcohol content or other states; the air blowing detection unit adopts an electret microphone to detect an air blowing state; the electret microphone is arranged in an air blowing pipeline; an output signal of the electret microphone is amplified by a signal amplification circuit and then is transmitted into the main control unit. The air blowing detection unit of the detector for the alcohol content of the exhaled air is capable of collecting singles for detecting air blowing state on the basis of the characteristic that the output signal of the electret microphone changes with an air blowing airflow; the cost is low and the output signal is stable.
Description
Technical field
The utility model relates to a kind of alcoholicity detector device, especially relates to a kind of detector for alcohol content in exhale gas.
Background technology
People use alcohol content detection instrument to carry out alcoholicity of exhaled gas detection to particular individual conventionally at present, and judge with the alcohol content in tester's breath whether tester can carry out some behavior, such as driving, work high above the ground etc., to avoid potential security incident to occur.
Current alcohol content pick-up unit, generally coordinates signal amplification circuit and signal processing circuit to identify air blowing state with gas pressure sensor, detects operation thereby make alcoholicity detector carry out corresponding alcohol content according to air blowing state.Adopting gas pressure sensor to identify air blowing state, is the easyliest in alcoholicity detector manufacture to expect, uses also very reliable.But its shortcoming is to cause equipment cost higher.
Detecting gas according to alcoholicity detector is the feature of human body breath, can judge by the variation of temperature, such as adopting thermistor in actual using.Adopt thermistor to detect the action of blowing, cost is low, but the impact of condensate water and occur higher failure rate in can examined instrument blowpipe in actual use affect stability of instrument, and reliability, the accuracy of reduction testing result are poor.
summary of the invention
The utility model is for prior art deficiency, a kind of detector for alcohol content in exhale gas has been proposed, air blowing detecting unit uses the output signal of Electret condenser microphone can change along with air blowing variations in flow to realize the signals collecting that detects air blowing state, and cost is low, stable output signal.
The technical scheme that the utility model adopts is:
A kind of detector for alcohol content in exhale gas, comprise main control unit, alcohol content detecting unit, man-machine interaction unit, air blowing detecting unit, described air blowing detecting unit output connects alcohol content detecting unit by pipeline, described alcohol content detecting unit output detection signal is to main control unit, described man-machine interaction unit comprises key circuit, display circuit, sound light alarming circuit, for receiving user's operational order and the demonstration to alcohol content or other states; Described air blowing detecting unit adopts Electret condenser microphone to detect air blowing state, and described Electret condenser microphone is arranged in air blowing pipeline, and Electret condenser microphone output signal accesses main control unit after signal amplification circuit amplifies processing.
Described detector for alcohol content in exhale gas, in the tube wall perforate of described air blowing pipeline, mate with the diameter of Electret condenser microphone in described perforate aperture, and the corresponding described tube wall perforate sealing of induction end face of described Electret condenser microphone arranges.
Described detector for alcohol content in exhale gas, be provided with one point of support interface at the tube wall of described air blowing pipeline, described Electret condenser microphone is arranged on monitor circuit board, draw a gas piping from described point of support interface and connect Electret condenser microphone, described gas piping other end outlet is set on described Electret condenser microphone and tightens.
Described detector for alcohol content in exhale gas, described main control unit comprises microcontroller chip, telecommunication circuit, described telecommunication circuit is connected with the microcontroller chip of main control unit with FPDP by its address port, the main equipment outside realization and alcohol content tester or carry out message exchange from equipment.
Described detector for alcohol content in exhale gas, described alcohol content detecting unit, comprise solenoid driver circuit, alcohol sensor, signal amplification circuit, the controlled connection main control unit of described solenoid driver circuit, alcohol sensor output signal carries out after signal amplifies processing accessing main control unit through signal amplification circuit.
Invention beneficial effect:
1, the utility model detector for alcohol content in exhale gas, air blowing detecting unit uses the output signal of Electret condenser microphone to change to realize the signals collecting that detects air blowing state along with air blowing variations in flow, compare with employing gaseous tension (flow) sensor, there is cost low, feature simple in structure.
2, the utility model detector for alcohol content in exhale gas, change to detect air blowing state according to the output signal of Electret condenser microphone, overcome adopt thermistor to detect to blow action is actual can examined instrument blowpipe in using in condensate water impact and there is the problem of higher failure rate, simply, practicality, stable output signal, do not affect stability of instrument, testing result accurately, reliably.
Brief description of the drawings
Fig. 1 is one of the utility model air blowing detecting unit structural representation.
Fig. 2 is two of the utility model air blowing detecting unit structural representation.
Fig. 3 is the utility model detector for alcohol content in exhale gas one-piece construction schematic diagram.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
Referring to Fig. 1, Fig. 3, the detector for alcohol content in exhale gas of the present embodiment, comprise main control unit, alcohol content detecting unit, man-machine interaction unit, air blowing detecting unit, described air blowing detecting unit output connects alcohol content detecting unit by pipeline, described alcohol content detecting unit output detection signal is to main control unit, described man-machine interaction unit comprises key circuit, display circuit, sound light alarming circuit, for receiving user's operational order and the demonstration to alcohol content or other states; The utility model is with respect to the improvements of prior art: described air blowing detecting unit adopts Electret condenser microphone to detect air blowing state, described Electret condenser microphone 2 is arranged in air blowing pipeline 1, and Electret condenser microphone 2 output signals access main control unit after signal amplification circuit amplifies processing.
As shown in Figure 1, in the tube wall perforate of described air blowing pipeline 1, mate with the diameter of Electret condenser microphone 2 in described perforate aperture, and the corresponding described tube wall perforate sealing of induction end face of described Electret condenser microphone 2 arranges.Number in the figure 3 is monitor circuit board.
Embodiment 2
Referring to Fig. 2, Fig. 3.Detector for alcohol content in exhale gas described in the present embodiment, be with the difference of embodiment 1: the tube wall at the air blowing pipeline 1 of described air blowing detecting unit is provided with one point of support interface, described Electret condenser microphone 2 is arranged on monitor circuit board 3, draw a gas piping 4 from described point of support interface and connect Electret condenser microphone 2, the other end outlet of described gas piping 4 is set on Electret condenser microphone 2 and tightens, and Electret condenser microphone 2 changes by gas piping induction air flow.
Embodiment 3
Referring to Fig. 3.The detector for alcohol content in exhale gas of the present embodiment, be with the difference of embodiment 1 or embodiment 2: described main control unit comprises microcontroller chip, telecommunication circuit, described telecommunication circuit is connected with the microcontroller chip of main control unit with FPDP by its address port, the main equipment outside realization and alcohol content tester or carry out message exchange from equipment.
The utility model detector for alcohol content in exhale gas, main control unit (comprising microcontroller chip and peripheral circuit) is for the control to complete machine signal and processing, can with alcohol content tester outside main equipment or carry out message exchange from equipment; Man-machine interaction unit comprises key circuit, display circuit, sound light alarming circuit, for receiving user's operational order and the demonstration to alcohol content or other states.
The character that air blowing detecting unit can change along with air blowing variations in flow according to the output signal of Electret condenser microphone, coordinate signal amplification circuit and signal processing circuit to identify and start to blow or blow the air blowing states such as interruption, thereby alcoholicity detector operates accordingly according to air blowing state.Then utilizing alcohol content detecting unit and processor to realize alcohol content detects.Because the output signal of Electret condenser microphone is fainter, need to be coupled to amplifying unit and be amplified, to facilitate Check processing.Described Electret condenser microphone circuit has simply, practicality, the feature such as stable.
The controlled connection main control unit of solenoid driver circuit in alcohol content detecting unit, alcohol sensor output signal carries out after signal amplifies processing accessing main control unit through signal amplification circuit.This unit is for detection of alcoholicity of exhaled gas information, and whether transfer to microcontroller chip to judge to process in rational scope, if content is normal, it is luminous and pipe by lower frequency that microcontroller chip can be controlled green light and hummer, if content is abnormal, microcontroller chip controls red colored lamp and hummer are by being different from other frequency scintillations of conventional frequency and piping.
Claims (5)
1. a detector for alcohol content in exhale gas, comprise main control unit, alcohol content detecting unit, man-machine interaction unit, air blowing detecting unit, described air blowing detecting unit output connects alcohol content detecting unit by pipeline, described alcohol content detecting unit output detection signal is to main control unit, described man-machine interaction unit comprises key circuit, display circuit, sound light alarming circuit, for receiving user's operational order and the demonstration to alcohol content or other states; It is characterized in that: described air blowing detecting unit adopts Electret condenser microphone to detect air blowing state, and described Electret condenser microphone is arranged in air blowing pipeline, and Electret condenser microphone output signal accesses main control unit after signal amplification circuit amplifies processing.
2. detector for alcohol content in exhale gas according to claim 1, it is characterized in that: in the tube wall perforate of described air blowing pipeline, mate with the diameter of Electret condenser microphone in described perforate aperture, and the corresponding described tube wall perforate sealing of induction end face of described Electret condenser microphone arranges.
3. detector for alcohol content in exhale gas according to claim 1, it is characterized in that: be provided with one point of support interface at the tube wall of described air blowing pipeline, described Electret condenser microphone is arranged on monitor circuit board, draw a gas piping from described point of support interface and connect Electret condenser microphone, described gas piping other end outlet is set on described Electret condenser microphone and tightens.
4. according to the detector for alcohol content in exhale gas described in claim 1,2 or 3, it is characterized in that: described main control unit comprises microcontroller chip, telecommunication circuit, described telecommunication circuit is connected with the microcontroller chip of main control unit with FPDP by its address port, the main equipment outside realization and alcohol content tester or carry out message exchange from equipment.
5. detector for alcohol content in exhale gas according to claim 4, it is characterized in that: described alcohol content detecting unit, comprise solenoid driver circuit, alcohol sensor, signal amplification circuit, the controlled connection main control unit of described solenoid driver circuit, alcohol sensor output signal carries out after signal amplifies processing accessing main control unit through signal amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884815.1U CN203745466U (en) | 2013-12-31 | 2013-12-31 | Detector for alcohol content of exhaled air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884815.1U CN203745466U (en) | 2013-12-31 | 2013-12-31 | Detector for alcohol content of exhaled air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745466U true CN203745466U (en) | 2014-07-30 |
Family
ID=51345251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884815.1U Expired - Lifetime CN203745466U (en) | 2013-12-31 | 2013-12-31 | Detector for alcohol content of exhaled air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745466U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297496A (en) * | 2014-09-05 | 2015-01-21 | 河南汉威电子股份有限公司 | Alcohol detection system for judicial monitoring and monitoring method thereof |
| CN105954504A (en) * | 2016-06-01 | 2016-09-21 | 苏州科技学院 | Method for rapidly processing alcohol qualitative signals and preliminary detection device |
| CN106013757A (en) * | 2016-06-15 | 2016-10-12 | 魏会芳 | Safety warning protective hanging basket |
| CN109030399A (en) * | 2018-07-24 | 2018-12-18 | 泉州轻工职业学院 | A kind of scouting and scrutinize integrated alcohol content tester |
| CN110763851A (en) * | 2019-10-30 | 2020-02-07 | 汉威科技集团股份有限公司 | Airway zero-resetting type alcohol tester and detection method thereof |
-
2013
- 2013-12-31 CN CN201320884815.1U patent/CN203745466U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297496A (en) * | 2014-09-05 | 2015-01-21 | 河南汉威电子股份有限公司 | Alcohol detection system for judicial monitoring and monitoring method thereof |
| CN105954504A (en) * | 2016-06-01 | 2016-09-21 | 苏州科技学院 | Method for rapidly processing alcohol qualitative signals and preliminary detection device |
| CN106013757A (en) * | 2016-06-15 | 2016-10-12 | 魏会芳 | Safety warning protective hanging basket |
| CN109030399A (en) * | 2018-07-24 | 2018-12-18 | 泉州轻工职业学院 | A kind of scouting and scrutinize integrated alcohol content tester |
| CN109030399B (en) * | 2018-07-24 | 2023-08-18 | 泉州轻工职业学院 | Alcohol detector integrating rough examination and fine examination |
| CN110763851A (en) * | 2019-10-30 | 2020-02-07 | 汉威科技集团股份有限公司 | Airway zero-resetting type alcohol tester and detection method thereof |
| CN110763851B (en) * | 2019-10-30 | 2024-01-12 | 汉威科技集团股份有限公司 | Airway zero resetting type alcohol tester and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203745466U (en) | Detector for alcohol content of exhaled air | |
| CN102619562A (en) | Instrument for monitoring gas emission quantity in roadway | |
| CN203519585U (en) | Air quality detection device | |
| CN206421543U (en) | Room air detection means | |
| CN204255884U (en) | Portable concrete defect detector | |
| CN103646489A (en) | Fire hazard alarm device | |
| CN204255939U (en) | A kind of novel on-line monitoring river drinking water quality portable unit | |
| CN202956866U (en) | Indoor harmful gas alarm device | |
| CN206756741U (en) | A kind of blood glucose meter based on the communication of mobile device Lightning mouths | |
| CN104318720A (en) | STC89C52-based smoke and gas alarm system | |
| CN104751590A (en) | Single-chip microcomputer based smoke alarm and alarm method thereof | |
| CN203772865U (en) | Alcohol tester with flow detection function | |
| CN207004780U (en) | Extraction flow control system based on double absolute pressure methods in side stream type gasmetry | |
| CN204330715U (en) | Sewer intelligent checking system | |
| CN204228738U (en) | Field pipes gas flow rate measuring system | |
| CN207636555U (en) | A kind of industrial gasses storage leakage alarms device | |
| CN204101492U (en) | A kind of medical center oxygen dew-point detection system | |
| CN203311578U (en) | Smog detection alarm apparatus | |
| CN207489211U (en) | A kind of compound detecting alarm of carbon monoxide photoelectric smoke | |
| CN107843699B (en) | Novel indoor air detects device | |
| CN203338532U (en) | Gas leakage detecting and processing device | |
| CN203204003U (en) | Alcohol content detector | |
| CN207636233U (en) | A kind of industrial gasses storage pressure monitor | |
| CN205403960U (en) | Novel temperature measurement circuit | |
| CN205091321U (en) | Indoor gaseous mass sampling detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee after: HANWEI ELECTRONICS Group Corp. Address before: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee before: HENAN HANWEI ELECTRONICS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |