CN103344671A - High-precision semiconductor exhaled gas alcohol concentration detection module - Google Patents
High-precision semiconductor exhaled gas alcohol concentration detection module Download PDFInfo
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- CN103344671A CN103344671A CN201310279322XA CN201310279322A CN103344671A CN 103344671 A CN103344671 A CN 103344671A CN 201310279322X A CN201310279322X A CN 201310279322XA CN 201310279322 A CN201310279322 A CN 201310279322A CN 103344671 A CN103344671 A CN 103344671A
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Abstract
The invention provides a high-precision semiconductor exhaled gas alcohol concentration detection module and relates to the technical field of content detection of semiconductor exhaled gas alcohol. The high-precision semiconductor exhaled gas alcohol concentration detection module comprises an exhaled gas voltage stabilization detection gas cavity, wherein the bottom of the exhaled gas voltage stabilization detection gas cavity is provided with a control circuit assembly support for fixing a control circuit assembly; the control circuit assembly is internally provided with a compensation type alcohol gas sensor driving circuit, an airflow sensor analyzing circuit, a singlechip computer as well as a signal transmission bus and a power supply control circuit; the high-precision semiconductor exhaled gas alcohol concentration detection module can detect alcohol concentration in gas which is fed in the semiconductor gas alcohol concentration detector to be detected, can detect the continuity of the fed gas, and can guarantee the continuous detection time of the semiconductor alcohol gas sensor. The test result has the good veracity and repeatability.
Description
The present invention relates to alcoholicity of exhaled gas detection technique field, relate in particular to the high-precision semiconductor alcohol content of exhalation gas concentration detection module that a kind of alcohol content of exhalation gas concentration detector is used.
Background technology
After people drank, drunk degree was generally determined by the alcohol content of chemical examination blood, also can be inferred by the alcohol content of breath.Alcohol content in person's expiration that common use alcohol content of exhalation gas concentration detector detects the motor vehicle driving, thus judge whether the driver drives when intoxicated.
Existing employed semiconductor alcohol content of exhalation gas concentration detector, it is simple in structure, and is cheap, thereby is used in a large number.But, present employed semiconductor alcohol content of exhalation gas concentration detector, substantially all be that the gas that the needs that will breathe out detect directly injects semiconductor alcohol content of exhalation gas concentration detector by mouthpiece or blowpipe, ordinary semiconductor alcohol gas sensor is directly injected in the expiration of injecting, because the structure difference of design, the position difference of ordinary semiconductor alcohol gas sensor, cause its testing conditions difference, so that have a strong impact on the test accuracy of semi-conductor gas alcohol concentration detector, and test result is repeated relatively poor.
Summary of the invention
The object of the present invention is to provide a kind of high-precision semiconductor alcohol content of exhalation gas concentration to detect module.
The present invention is achieved through the following technical solutions: high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprise that the breath voltage stabilizing detects air cavity, the breath voltage stabilizing detects air cavity inside and is provided with compensated semiconductor's alcohol gas sensor and pneumatic sensor, and breath to be measured injects air cavity by the gas inlet that is located at breath voltage stabilizing detection air cavity top.The breath voltage stabilizing detects the air cavity bottom and is provided with the control circuit assembly bracket, and the control circuit assembly is fixed in this.Be provided with compensated semiconductor's alcohol gas sensor drive driving circuit in the control circuit assembly, pneumatic sensor analysis circuit, one-chip computer and signal transmission bus and power control circuit.
High-precision semiconductor alcohol content of exhalation gas concentration detects module and does not establish man-machine interface, only need insert external power source during use, outside subscriber's line circuit can receive various information and the instruction that module of the present invention sends by signal transmission bus, external user is deciphered these information and instruction and is shown the line correlation operation of going forward side by side, and finishes test process.
Mounting ear can embed in the housing that is fixed on semiconductor alcohol content of exhalation gas concentration detector when high-precision semiconductor alcohol content of exhalation gas concentration detected the module use.
The present invention is simple in structure, adopt the breath voltage stabilizing to detect air cavity, the concentration alcohol gas to be measured of semi-conductor gas alcohol concentration detector will be injected, automatically be adjusted to the gas field that is fit to semiconductor transducer work, can also detect simultaneously the continuity of injecting gas, guarantee the continuous detecting time of compensated semiconductor's alcohol gas sensor.Its test result has good accuracy and repeatability.
Description of drawings
Fig. 1 is the front schematic view of structure of the present invention;
Fig. 2 is the side schematic view of structure of the present invention;
Fig. 3 is the block diagram of circuit of the present invention.
Reference numeral: 1, the breath voltage stabilizing detects air cavity; 2, gas inlet to be measured; 3, control circuit fixed support; 4, compensated semiconductor's alcohol gas sensor; 5, air-flow detecting sensor; 6, control circuit assembly; 7, sensor drive driving circuit; 8, air-flow detecting sensor analysis circuit; 9, one-chip computer circuit; 10, signal transmission bus; 11, power control circuit; 12, external power source; 13, the concentration alcohol gas to be measured of Hu Chuing; 14, mounting ear.
Embodiment
Below in conjunction with the drawings and the specific embodiments the present invention is described further:
Shown in seeing figures.1.and.2, high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprise that the breath voltage stabilizing detects air cavity 1, gas inlet 2 to be measured, control circuit assembly fixed support 3, compensated semiconductor's alcohol gas sensor 4, air-flow detecting sensor 5, control circuit assembly 6, sensor drive driving circuit 7, air-flow detecting sensor analysis circuit 8, one-chip computer circuit 9, signal transmission bus 10, power control circuit 11, external power source 12, the alcohol gas 13 of concentration to be measured, mounting ear 14.
Described breath constant current constant voltage detects air chamber 1 inside and is provided with compensated semiconductor's alcohol gas sensor 4 and pneumatic sensor 5, and the alcohol gas 13 of concentration to be measured injects air chambers 1 by the gas inlet to be measured 2 that is located at breath voltage stabilizing detection air cavity 1 top.
Described breath voltage stabilizing detects air cavity 1 both sides and is provided with mounting ear 14.
Described breath voltage stabilizing detects air cavity 1 bottom and is provided with control circuit assembly bracket 3, and control circuit assembly 6 is fixed in control circuit and props up in the assembly frame 3.
Be provided with compensated semiconductor's alcohol gas sensor drive driving circuit 7 in the described control circuit assembly 6, pneumatic sensor analysis circuit 8, one-chip computer circuit 9 and signal transmission bus 10 and power control circuit 11.
Described one-chip computer circuit 9 is electrically connected with compensated semiconductor's alcohol gas sensor drive driving circuit 7.
Described compensated semiconductor alcohol gas sensor drive driving circuit 7 is electrically connected with compensated semiconductor's alcohol gas sensor 4.
Detection signal and the one-chip computer circuit 9 of described compensated semiconductor alcohol gas sensor 4 are electrically connected.
The detection signal of described pneumatic sensor 5 and air-flow detecting sensor analysis circuit 8 are electrically connected.
Described air-flow detecting sensor analysis circuit 8 is electrically connected with one-chip computer circuit 9.
Described one-chip computer circuit 9 is electrically connected with signal transmission bus 10.
Described power control circuit 11 is electrically connected with one-chip computer circuit 9.
Described power control circuit 11 is electrically connected with external power source 12.
With reference to shown in Figure 3, described high-precision semiconductor alcohol content of exhalation gas concentration detects module, only need insert external power source 12 during use, outside subscriber's line circuit can receive various information and the instruction that module of the present invention sends by signal transmission bus 10, external user is deciphered these information and instruction and is shown the line correlation operation of going forward side by side, high-precision semiconductor alcohol content of exhalation gas concentration detects module and enters alcohol content of exhalation gas concentration detecting pattern, 7 operations of 9 pairs of compensated semiconductors of one-chip computer circuit alcohol gas sensor drive driving circuit, drive 4 work of compensated semiconductor's alcohol gas sensor, external user is pressed the instruction of one-chip computer circuit 9, the exhalation of the current rate that will meet the requirements concentration alcohol gas 13 to be measured, inject the gas inlet to be measured 2 that the breath voltage stabilizing detects air cavity 1 continuously, compensated semiconductor's alcohol gas sensor 4 detect sensitive signal be transferred to one-chip computer circuit 9 and carry out analytical calculation, result of calculation sends to outside subscriber's line circuit by signal transmission bus 10.This test process is finished.
Inject the gas inlet to be measured 2 that the breath voltage stabilizing detects air cavity 1, air-flow detecting sensor 5 detects airflow signal, be transferred to 8 analytical calculations of air-flow detecting sensor analysis circuit, if detecting current rate backlog demand or gas injection interrupts, be transferred to air-flow detecting sensor analysis circuit 8 and will send the gas injection false command to one-chip computer circuit 9, one-chip computer circuit 9 will stop this test, and send the gas injection rub-out signal by the subscriber's line circuit of signal transmission bus 10 outsides.This test process is finished.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this instructions, these terms do not constitute any restriction to the present invention just for convenience of description.
Claims (6)
1. high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprises that the breath voltage stabilizing detects air cavity, compensated semiconductor's alcohol gas sensor, air-flow detecting sensor, control circuit assembly.
2. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: the control circuit assembly is by sensor drive driving circuit, air-flow detecting sensor analysis circuit, the one-chip computer circuit, signal transmission bus, power control circuit are assembled on the printed circuit board (PCB) jointly and constitute.
3. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: compensated semiconductor's alcohol gas sensor and air-flow detecting sensor are installed in the cavity of breath voltage stabilizing detection air cavity.
4. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: high-precision semiconductor alcohol content of exhalation gas concentration detects module and external circuit instructs by signal bus and the transmission of signal exchange.
5. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: high-precision semiconductor alcohol content of exhalation gas concentration detects the duty of module by the calculation procedure control of one-chip computer in the one-chip computer circuit.
6. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: can detect and inject the continuity that the breath voltage stabilizing detects air cavity concentration alcohol gas to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310279322XA CN103344671A (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor exhaled gas alcohol concentration detection module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310279322XA CN103344671A (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor exhaled gas alcohol concentration detection module |
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| CN103344671A true CN103344671A (en) | 2013-10-09 |
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| CN201310279322XA Pending CN103344671A (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor exhaled gas alcohol concentration detection module |
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Citations (8)
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|---|---|---|---|---|
| CN2583670Y (en) * | 2002-12-04 | 2003-10-29 | 上海嘉安电器厂 | Alcohol detecting warning device |
| US20030228702A1 (en) * | 2002-06-11 | 2003-12-11 | Burkhard Stock | Device and process for measuring breath alcohol |
| CN2935157Y (en) * | 2006-07-27 | 2007-08-15 | 河南汉威电子有限公司 | Gas collection apparatus of alcohol detector |
| CN201607445U (en) * | 2009-12-15 | 2010-10-13 | 励冠科技集团有限公司 | Alcohol tester |
| CN202230049U (en) * | 2011-08-25 | 2012-05-23 | 深圳市大帝科技发展有限公司 | Alcohol breath test analyzer |
| CN202471642U (en) * | 2012-03-03 | 2012-10-03 | 黑龙江八一农垦大学 | Alcohol tester |
| CN202886345U (en) * | 2012-09-29 | 2013-04-17 | 潘卫江 | Alcohol tester with oral cavity alcohol detection function |
| CN202923395U (en) * | 2012-10-31 | 2013-05-08 | 长安大学 | Drink identification and starting device based on singlechip |
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2013
- 2013-06-28 CN CN201310279322XA patent/CN103344671A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030228702A1 (en) * | 2002-06-11 | 2003-12-11 | Burkhard Stock | Device and process for measuring breath alcohol |
| CN2583670Y (en) * | 2002-12-04 | 2003-10-29 | 上海嘉安电器厂 | Alcohol detecting warning device |
| CN2935157Y (en) * | 2006-07-27 | 2007-08-15 | 河南汉威电子有限公司 | Gas collection apparatus of alcohol detector |
| CN201607445U (en) * | 2009-12-15 | 2010-10-13 | 励冠科技集团有限公司 | Alcohol tester |
| CN202230049U (en) * | 2011-08-25 | 2012-05-23 | 深圳市大帝科技发展有限公司 | Alcohol breath test analyzer |
| CN202471642U (en) * | 2012-03-03 | 2012-10-03 | 黑龙江八一农垦大学 | Alcohol tester |
| CN202886345U (en) * | 2012-09-29 | 2013-04-17 | 潘卫江 | Alcohol tester with oral cavity alcohol detection function |
| CN202923395U (en) * | 2012-10-31 | 2013-05-08 | 长安大学 | Drink identification and starting device based on singlechip |
Non-Patent Citations (2)
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| 徐京莲等: "《基于多传感器融合的车载酒精检测系统设计》", 《仪表技术与传感器》 * |
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Application publication date: 20131009 |
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