Vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar

A vehicle-mounted radar and array antenna technology, which is applied in the field of vehicles, can solve problems such as antenna failure, affecting the safety of assisted driving or autonomous driving, and incorrect orientation estimation, so as to ensure driving safety.

Active Publication Date: 2020-04-07
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the vehicle is affected by temperature, vibration, etc. during driving, and it is prone to damage to the vehicle-mounted radar array antenna, loose antenna connectors, etc., resulting in antenna failure.
Once one or more antennas in the array antenna fail, it will cause the problem of orientation estimation error, which will affect the safety of assisted driving or autonomous driving

Method used

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  • Vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar
  • Vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar
  • Vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar

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Embodiment Construction

[0022] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0023] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar. The vehicle-mounted radar array antenna failure detection method provided bythe invention comprises the following steps: for each antenna in an array antenna on a vehicle-mounted radar, counting a distribution rule of antenna data received by the antenna to obtain first distribution information corresponding to the antenna; determining a scene category of a current scene of the vehicle-mounted radar, and searching target distribution information corresponding to the scene category from a pre-established corresponding relationship between the scene category and second distribution information corresponding to the antenna when the antenna does not fail; and calculatingthe difference degree between the first distribution information and the target distribution information, and determining whether the antenna is invalid or not according to the difference degree. According to the vehicle-mounted radar array antenna failure detection method and device and the vehicle-mounted radar provided by the invention, whether each antenna in the array antenna on the vehicle-mounted radar fails or not can be detected so as to guide the driving behavior and ensure the driving safety.

Description

technical field [0001] The present application relates to the field of vehicles, in particular to a vehicle radar array antenna failure detection method, device and vehicle radar. Background technique [0002] In recent years, with the development of radar technology, various vehicle radars have emerged as the times require. For example, vehicles can use on-board radar to monitor other vehicles, pedestrians, or other objects on the road the vehicle is traveling on. [0003] At present, vehicle-mounted radars use uniform or non-uniform array antennas to estimate the azimuth of targets. However, the vehicle is affected by temperature, vibration, etc. during driving, and it is easy to cause damage to the vehicle-mounted radar array antenna, loose antenna connectors, etc., resulting in antenna failure. Once one or more antennas in the array antenna fail, it will cause the problem of wrong orientation estimation, which will affect the safety of assisted driving or autonomous dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 浦世亮钱通沈林杰申琳
Owner HANGZHOU HIKVISION DIGITAL TECH
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