Detection angle fine adjustment device for radar sensor

Abstract

The invention discloses a detection angle fine adjustment device for a radar sensor. The detection angle fine adjustment device comprises a housing, a radar adjusting gear, a driving mechanism, a transmission mechanism and a power unit, wherein the radar adjusting gear can drive the radar sensor to rotate; the driving mechanism comprises a first driving shaft and a second driving shaft which are respectively provided with a driving tooth area; the transmission mechanism comprises a first transmission unit and a second transmission unit, wherein the first transmission unit is used for enabling the driving tooth area of the first driving shaft to be connected with the radar adjusting gear, and the second transmission unit is used for the driving tooth area of the second driving shaft to be connected with the radar adjusting gear; each of the transmission units is separately provided with a driven tooth part which is meshed with the corresponding driving tooth area, and a transmission gear which rotates in synchronism with the driven tooth parts, is meshed with the driven tooth parts and has a radius smaller than that of the radar adjusting gear; and the power unit enables the radar sensor to rotate. Through the adoption of the detection angle fine adjustment device for the radar sensor, disclosed by the invention, an effect of high angle adjustment resolution can be achieved.

Description

technical field [0001] The invention relates to an angle fine-tuning device, in particular to a detection angle fine-tuning device of a radar sensor. Background technique [0002] According to statistics, the number of traffic accidents in the world every year is always high, and because the vast majority of vehicles are currently operated by humans, all human factors such as failure to abide by traffic rules, failure to maintain a safe distance between cars, novices on the road, and diseases The traffic accidents that cause are too numerous to enumerate. As early as 2009, the United States began to study the norms of collision prevention warning, and developed a safety technology that uses communication, control and information technology to detect the dynamic conditions around the vehicle and assist the driver. It is commonly known as the automobile collision avoidance system. . One is to use a radar sensor in the perception system to monitor the obstacles ahead or detec...

AI Technical Summary

Problems solved by technology

However, the angle adjustment of the radar sensor 60 is achieved through the helical relationship between the screw 501 and the nut 402, so that the resolution of the angle adjustment (that is to say, the angle size that can be adjusted per unit) is not high (resolution The higher the value, the smaller the angle that can be adjusted per unit), so it cannot meet the needs of fine-tuning the angle

In addition, the rotation angle of the motor 401 cannot be positioned by itself, and the sensor assembly 30 needs to be additionally installed to sense the rotation angle of the motor 401 to control the rotation of the motor 401 in place, but the sensor assembly 30 has the disadvantage of short life, so that the The detection angle fine-tuning device needs frequent maintenance

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