Vehicle-mounted signal collection and conversion device for driver tests

Abstract

The invention discloses a vehicle-mounted signal collection and conversion device for driver tests. The vehicle-mounted signal collection and conversion device comprises a signal conversion device, a car door opening and closing sensor, a seat belt sensor, a parking sensor, a brake sensor, a clutch sensor, a steering lamp sensor, a dipped headlight sensor, a high-beam headlight sensor, a fog light sensor and a gear sensor, wherein the sensors are connected with the signal conversion device which comprises a signal receiving circuit, a current limit circuit, an optoelectronic isolation circuit, a single-chip microcomputer controller and a TTL-RS232 level switching circuit, and the TTL-RS232 level switching circuit is connected with an examination control computer. The vehicle-mounted signal collection and conversion device for driver tests is simple in structure, good in use stability and capable of automatically rating car door opening and closing, seat belts, parking operation, braking operation, a clutch, steering lamps, dipped headlights, high-beam headlights, fog lights and gears of a test vehicle effectively. Compared with manual rating in the prior art, the vehicle-mounted signal collection and conversion device for driver tests is more accurate in rating results, convenient to use and strong in applicability.

Description

technical field [0001] The invention belongs to the technical field of automatic evaluation of driver examinations, and in particular relates to a vehicle-mounted signal acquisition and conversion device for driver examinations. Background technique [0002] With the improvement of people's living standards, more and more people are taking the driver's license test. In order to meet the needs of the driver's license test, it is stipulated that the driver's test needs to realize automatic judgment, that is, the examinee can automatically judge the operation of the test vehicle under the specified situation. The driving test evaluation system in the prior art mainly judges the test results by combining the sensor of the vehicle and the position of the vehicle with the site conditions, which can meet the needs of the driver's license test to a certain extent. However, in the driver's license test, there are still It will judge the status of the door switch, seat belt, turn sign...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, more and more people are taking the driver's license test. In order to meet the needs of the driver's license test, it is stipulated that the driver's test needs to realize automatic judgment, that is, the examinee can automatically judge the operation of the test vehicle under the specified situation. The driving test evaluation system in the prior art mainly judges the test results by combining the sensor of the vehicle and the position of the vehicle with the site conditions, which can meet the needs of the driver's license test to a certain extent. However, in the driver's license test, there are still It will judge the status of the door switch, seat belt, turn signal, accelerator, brake, vehicle speed and rotation speed, etc. However, in the existing technology, the above-mentioned judgments need manual judgment, which will affect the judgment of the driver's license test to a certain extent. It will affect the accuracy of judgment to a certain extent, and it is difficult to meet the needs of the market

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