Radar tachymeter

Abstract

The invention discloses a radar tachymeter comprising: a control box body, a radar body, a protective cover and a camera. The radar body is arranged on the control box body. The camera is arranged onthe upper surface of the control box body through a support column and is provided with the protective cover. A first driving pump is disposed in the protective cover. A piston rod on the first driving pump is vertically disposed. The bottom end of the piston rod is connected with a cleaning plate. One side of the cleaning plate is abutted against the camera. The first driving pump is capable of driving the cleaning plate to move in a vertical direction. The radar tachymeter solves the problem that dust is liable to accumulate on the camera of a radar tachymeter in the prior art used outdoorsfor a long time and thus affects a shooting effect, requires manual cleaning, is inconvenient in operation, and wastes time and labor.

Description

technical field [0001] The invention relates to the field of speedometers, in particular to a radar speedometer. Background technique [0002] The speed radar mainly uses the Doppler Effect principle: when the target approaches the radar antenna, the frequency of the reflected signal will be higher than that of the transmitter; conversely, when the target moves away from the antenna, the frequency of the reflected signal will be lower than the frequency of the transmitted signal. probability. In this way, the relative speed between the target and the radar can be calculated by changing the value of the frequency, which is widely used in the transportation department. [0003] When the radar speedometer in the prior art is used outdoors for a long time, dust is easy to accumulate on the camera, thereby affecting the shooting effect, requiring manual cleaning, inconvenient operation, and time-consuming and laborious. [0004] Therefore, it is an urgent problem to be solved b...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned technical problems, the purpose of the present invention is to overcome the problem that when the radar speedometer in the prior art is used outdoors for a long time, it is easy to accumulate dust on the camera, thereby affecting the shooting effect, requiring manual cleaning, inconvenient operation, and time-consuming and labor-intensive problems. Thereby providing a radar speedometer that can automatically clean the camera on the speedometer during use to ensure normal use and requires manual cleaning

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