Optimization method for target detection and early warning of millimeter-wave large vehicle blind spot radar
A millimeter-wave radar and target detection technology, applied in the field of detection, can solve the problems of false alarms, difficult development, and great influence of radar systems, and achieve the effects of reduced false alarm rate, fast calculation speed, and high real-time performance.
Active Publication Date: 2021-02-02
MICROBRAIN INTELLIGENT LTD
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Problems solved by technology
For example, the recognition of the target by the camera has the characteristics of high accuracy and real-time performance, but it is greatly affected by the weather and night, and there are also problems of high cost and difficult development; Disturbing clutter such as side guardrails and shrubs will bring unavoidable false alarms to the system perception, resulting in frequent false alarms of the radar system, which seriously affects the driver's driving experience
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them.
[0032] refer to figure 1 , an optimization method for target detection and early warning of millimeter-wave large vehicle blind spot radar, including the following steps:
[0033] S1: Obtain the target point cloud related data in the blind area of the large vehicle through the millimeter wave radar;
[0034] S2: When the system receives the signal of the right turn signal of the large vehicle, the radar enters the mode 1 state, regardless of the absolute speed of the detection target within the blind zone warning range and the vehicle speed, and detects within the blind zone warning range and within 1.2m on the right side of the vehicle Arrived targe...
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The invention discloses an optimization method for target detection and early warning of a radar in the blind area of a millimeter wave cart. Two early warning modes are set for the radar: Mode 1, when the right turn signal of the cart is turned on, the early warning range of the blind area on the right side of the car is set. In mode 2, when the large vehicle does not turn on the right turn signal and the vehicle speed is greater than 8km / h, the radar filters out interference such as the right guardrail and bushes Factors, more accurately detect cars, cyclists and pedestrians, when the cart is stationary and travels straight below 8km / h, the radar alarm is turned off, which reduces the discomfort caused by false alarms and frequent alarms to the driver. The target detection in the present invention The principle of the method is simple, the calculation speed is fast, and the real-time performance is high. It can filter out false alarm clutter such as guardrails and shrubs. After testing, its accurate early warning rate can reach more than 99%, and the early warning accuracy is high.
Description
technical field [0001] The invention relates to the technical field of detection, in particular to an optimization method for target detection and early warning of a millimeter-wave large vehicle blind spot radar. Background technique [0002] When a large vehicle is driving, there will be a visual blind spot on the right side of the vehicle. The driver cannot observe pedestrians and vehicles in the blind spot through the rearview mirror, and there is a certain hidden danger of traffic accidents. However, in recent years, most of the large vehicle blind spot detection systems on the market at home and abroad use cameras, ultrasonic waves or lidar methods, and they still have some problems and deficiencies. For example, the recognition of the target by the camera has the characteristics of high accuracy and real-time performance, but it is greatly affected by the weather and night, and there are also problems of high cost and difficult development; Interfering clutter such a...
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IPC IPC(8): G01S7/41G01S13/931
CPCG01S7/414G01S13/931
Inventor 杨博谷林峰郭利庚
Owner MICROBRAIN INTELLIGENT LTD