Vehicle radar system and detection method

Abstract

The invention provides a vehicle radar system, which comprises an ultrasonic unit, a conversion unit, a shielding unit, a control unit and an output unit. The shielding unit is used for a driver to output a shielding signal according to false-alarmed obstacle information. The control unit receives a detection signal outputted by the conversion unit and stores the detection signal corresponding to the false-alarmed obstacle information as a false-alarm signal according to the shielding signal and acquires the obstacle information after shielding a detection signal which is smaller than or equal to the false-alarmed signal. The output unit prompts the driver according to the obstacle information acquired by the control unit. Due to the adoption of the vehicle radar system and the vehicle radar detection method, the detection signal corresponding to the false-alarmed obstacle information judged by the driver is stored as the false-alarmed signal, the detection signal which is identical to the false-alarmed signal is shielded by comparing the detection signal with the false-alarmed signal, so the false-alarmed obstacle information can be prevented from interfering the normal operation of the driver.

Description

【Technical field】 [0001] The invention relates to vehicle technology, in particular to a vehicle radar system and a detection method. 【Background technique】 [0002] With the development of automobile technology, the vehicle radar system is becoming more and more popular as a convenient vehicle accessory for drivers. It detects obstacle information and prompts the driver, and reminds the driver when the distance between the vehicle and the obstacle reaches the set dangerous distance or Take braking measures to assist the driver in safe operation. [0003] One of the main core technologies of the vehicle radar system in the prior art is the processing of detecting the obstacle distance by the ultrasonic sensor, which mainly depends on the sensitivity of the ultrasonic sensor. Sensitivity is the ratio of the output increment to the corresponding input increment that causes the increment, and is an important indicator of the static characteristics of the ultrasonic sensor. Wh...

AI Technical Summary

Problems solved by technology

However, due to the changeable driving environment, the distance of obstacles is very complicated, so the vehicle radar system with fixed sensitivity cannot accurately detect obstacle information, and falsely reported obstacle information will interfere with the normal operation of the driver, causing safety hazards

In order to improve the performance of the vehicle radar system, the current technology usually adopts measures such as improving the performance of the ultrasonic sensor and adding hardware circuits, which not only greatly increase the cost but also have unsatisfactory effects. Safety issues, unable to meet the purpose of assisting drivers in safe operation

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