Radar system capable of monitoring rotating speed of motor, implementation method and radar equipment

Abstract

The invention discloses a radar system capable of monitoring the rotating speed of a motor, an implementation method and radar equipment, wherein the radar system comprises a detection device, a motor device, a speed measurement device and a control device; the speed measurement device comprises a coded disc, a diaphragm and a photoelectric door; the diaphragm can limit the divergence degree of speed measurement laser beams emitted by the photoelectric door, and the edge of received feedback pulses is steeper. According to the method, during speed measurement, the time difference between the rising edge and the falling edge in the feedback pulse sequence is monitored at the same time, so that the rotating speed of the motor is calculated, and the speed measurement error caused by the machining error of code disc hole opening can be reduced to the maximum extent. The radar equipment comprises the radar system. By using the radar system disclosed by the invention, the monitoring of the rotation speed of the motor in the laser radar system can be more accurate and efficient, and the stability and reliability of the operation of the laser radar system can be ensured. The radar system and the radar equipment can be widely applied to the technical field of radars.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a radar system capable of monitoring the rotational speed of a motor, its realization method and radar equipment. Background technique [0002] Lidar technology is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. Compared with conventional microwave radar, laser radar uses laser beams, and its working frequency is much higher than that of microwaves, so it brings advantages such as high resolution, good concealment, strong anti-active interference ability, small size and light weight. and other advantages. Existing lidar technology is mainly used in industries such as robotic equipment, car assisted driving and drones. At present, its laser emitting and receiving technology, the communication technology design between the rotating end and the control module have gradually matured, and related products have gradua...

AI Technical Summary

Problems solved by technology

[0004] However, this photogate speed measurement method has the following disadvantages: firstly, the divergence angle of the light emitted by the photogate is relatively large, so that the edge of the generated feedback pulse is relatively slow, the edge monitoring accuracy is not high, and it is easy to cause the emitted light to pass through both on the code wheel at the same time. Gaps in bars, resulting in timing errors

In addition, the machining error of the code disc itself will also affect the timing of the photoelectric gate feedback pulse edge, thereby reducing the accuracy of pulse edge timing and speed measurement

However, in the existing laser radar technology applications, no technical solutions for the above problems have been given.

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