Handheld laser drunk-driving telemetering and pre-warning system

Abstract

The invention discloses a handheld laser drunk-driving telemetering and pre-warning system comprising a body. The body is internally provided with a DFB (Distributed Feed Back) laser and is externally provided with a laser emission button which is electrically connected with the DFB laser and a control module of the DFB laser; a receiving telescope is arranged on the side wall of the body, and a beam collimator is arranged in a lens cone of the receiving telescope; the DFB laser is connected with the beam collimator by virtue of optical fibers; and a photoelectric detector is arranged at the rear end of the receiving telescope, and the signal output of the photoelectric detector is connected with a signal acquisition and processing module. When the handheld laser drunk-driving telemetering and pre-warning system is used, emitted light beams are aligned with an area to be metered, the metering can be finished quickly by high-frequency modulation of a light source, and a user can perform judgment rapidly according to the displayed result and completely control the starting of the metering. The handheld laser drunk-driving telemetering and pre-warning system can be used for performing real-time telemetering on alcohol concentration on a small scale.

Description

technical field [0001] The invention relates to the field of traffic safety detection equipment, and is a detection instrument suitable for rapid investigation and punishment of drunk driving by traffic police departments. Background technique [0002] Drunk driving is the main cause of road traffic accidents. About 1.2 million people die in road traffic accidents every year in the world, and about 50%-60% of the traffic accidents are related to drunk driving. However, less than one-thousandth of drunk driving is investigated and dealt with by the traffic management department, and most of them are not checked by the traffic management department, which brings huge hidden dangers to traffic safety. Therefore drunk driving has become the category that the traffic management department focuses on cracking down on. However, the growth of the traffic police force in our country lags behind the growth of roads, motor vehicles and drivers. Therefore, the public security traffic ...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1) the traffic police's visual inspection will be affected by the weather, and the accuracy of judgment will be affected when the line of sight is not good; 2) even if it is drunk driving, but the vehicle's driving process shows normal, it is easy to affect the traffic police's judgment

3) If the traffic police increase the probability of stopping vehicles for inspection, a large number of non-drinking driving vehicles will be inspected, and even cause traffic jams in serious cases, causing public resentment

However, domestic alcohol detection based on TDLAS has not been reported

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