Testing device and testing method of lane departure warning system

Abstract

The invention relates to a testing device and a testing method of a lane departure warning system. The testing device is characterized by comprising image sensors, an image acquisition unit, a vehicle-mounted CAN (Controller Area Network) unit and a data processing unit, wherein the image sensors are fixed at both sides above a vehicle and used for acquiring images of the road surface, wherein the plane that the image sensors are located are parallel to the road surface; the image acquisition unit is used for converting the road surface image information acquired by the image sensors into digital information; the vehicle-mounted CAN unit provides vehicle speed information in original vehicle information and warning time information provided by the lane departure warning system to be tested; and the data processing unit is used for working out the distance from one point on the vehicle body to the lane line and the off-line speed at the warning time under a world coordinate system according to the lane-line containing road surface information acquired by the image acquisition unit by combining the vehicle speed and the warning time information provided by the vehicle-mounted CAN unit. The invention has low cost and high authenticity degree of a tested evaluating result and is suitable for testing various lane departure warning systems.

Description

technical field [0001] The invention relates to a test device and a test method for an alarm system, in particular to a test device and a test method for a lane departure alarm system based on image processing. Background technique [0002] Lane Departure Warning Systems (LDWS) are based on basic traffic laws, and its main goal is to help drivers keep vehicles safely within lanes of highways and similar other roads. When the vehicle deviates from the lane due to driver negligence or other reasons, the system will automatically issue a warning to remind the driver to pay attention to vehicle safety. Therefore, before using a lane departure warning product, an warning test and performance evaluation are often required to check whether the product meets the qualified warning standard. After testing and performance evaluation of lane departure warning products, qualified products must achieve: when the vehicle deviates, the driver should be alerted in time, that is, qualified p...

AI Technical Summary

Problems solved by technology

Some tend to test on real vehicles. The advantage is that it can most truly reflect the working conditions of the lane departure warning system, and the driver can take it seriously. The test results are highly authentic, but it costs a lot of manpower and financial resources.

Some use driving simulators, which have the advantage of being able to simulate the dangerous situations in which risks must be borne during real vehicle experiments, and can better test the potential capabilities of the system. It is easier to obtain various parameters, but the platform design is complicated and the simulation environment is difficult to establish , higher construction costs

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