The invention discloses a vehicle-mounted alcohol detection device which comprises a power supply module, and the power supply module is electrically connected with a gas sensor, a signal processing module and a control device; the gas sensor is a gas-sensitive alcohol sensor module, the signal processing module comprises a core single-chip microcomputer and an operational amplifier chip which areelectrically connected, and the control device comprises a relay output module and a buzzer alarm device which are electrically connected. The device has the advantages that the LM2596 ensures the normal operation of each module; the alcohol detection effect is ensured by using MQ-41-M0; the STC89C52 single chip microcomputer can accurately judge whether a driver drinks or not; the SDR-5VDC is alow-power electromagnetic relay, and the source piezoelectric buzzer has the characteristics of low manufacturing cost and good frequency characteristics so that the device is low in overall manufacturing cost and good in running speed, whether a driver drinks or not can be accurately and quickly judged, flameout operation is conducted on the automobile through the control device, and drunk driving of the driver is prevented.
本发明公开了一种车载酒精检测装置,包括电源模块,所述电源模块电性连接有气体传感器、信号处理模块和控制装置;所述气体传感器为气敏酒精传感器模组,所述信号处理模块包括电性连接的核心单片机和运放芯片,所述控制装置包括电性连接的继电器输出模块和蜂鸣器报警装置。本发明的优点在于:LM2596保证各个模块的正常运行,用MQ‑41‑M0保证了酒精检测效果,STC89C52单片机能对驾驶员是否饮酒做出准确判断,SDR‑5VDC是小功率的电磁继电器,源压电蜂鸣器有造价低廉的特点和良好的频率特性,故而使本装置整体造价低廉,而运行速度良好,对是否饮酒能够做出准确而快速的判断,并通过控制装置对汽车进行熄火操作,防止驾驶员酒驾。
Vehicle-mounted alcohol detection device and control system thereof
一种车载酒精检测装置及其控制系统
2020-10-02
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Vehicle-mounted expiration type alcohol detection system and detection method thereof
European Patent Office | 2020
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