Control system for detecting conductor who has drunk wine

Abstract

A control system for detecting the conductor who has drunk wine is composed of probe, computer interface, and computer. The said probe consists of blowing responder, alcohol signal detector, signal processor and data latch. Its advantages are no zero drift after using it for a long time, and high automatization level.

Description

technical field [0001] The invention relates to an exhaled gas alcohol content detector for judging whether a person to be tested has drunk alcohol beyond the standard, in particular to a computer-controlled system for detecting alcohol consumption by railway crew members. Background technique [0002] In order to adapt to the rapid development of railway transportation, the railway system is now carrying out a lot of work on the topic of "management". At present, the locomotive system has partially realized computerized management in crew management, and each locomotive depot has set up a computerized local area network, which also provides conditions for other management tasks to be computerized. In crew management, the management of alcohol consumption detection by drivers and passengers has been a weak link for a long time, and this has often formed loopholes, resulting in major railway accidents, which have been recorded in many locomotive depots. Today, when the train...

AI Technical Summary

Problems solved by technology

This problem has not been effectively solved for a long time, mainly for several reasons: First, there is no convenient and practical detection instrument with ideal detection effect

Second, the detection and management methods are backward, and manual management makes drinking detection a decoration, which cannot be effectively implemented

For example, a utility model patent named "IC Card Drinking Detector" with a publication number of CN2285897Y, which uses an alcohol sensor to generate a voltage signal, and uses one sensor in a single instrument, which does not solve the influence of surrounding environmental factors on the sensor , if there is alcohol in the surrounding air, it will not be able to correctly detect the alcohol content in the breath exhaled by the person being tested; Real-time connection with computer, automatic computer monitoring cannot be realized

[0004] Another utility model patent, titled: "Driver drinking detector", publication number is CN2193547Y, it uses an alcohol sensor to generate a resistance signal, but it uses a regulated power supply, which can only monitor a threshold value , can only be analyzed qualitatively; and the use of a sensor in a single instrument does not address the influence of surrounding environmental factors on the sensor. If there is alcohol in the surrounding air, it will not be able to correctly detect the alcohol in the breath exhaled by the person being tested. content; and it has no function of communicating with the computer

The alcohol tester uses a load resistance and a sensor in series for detection. Due to the long-term continuous use of the sensor, the zero-point drift problem, under the condition of uninterrupted continuous work for many years, the impact of the zero-point drift problem becomes increasingly prominent, and false alarms occur frequently.

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