Method, device and system for controlling unmanned driving of vehicles

Abstract

The invention relates to a method, device and system for controlling the unmanned driving of vehicles. The method for controlling the unmanned driving of the vehicles includes the following steps that: a vehicle-mounted end sends the current position of a vehicle where the vehicle-mounted end is located, and a first type of coded information which is currently adopted by a laser radar on the vehicle to a server; the server respectively allocates the first type of coded information to various vehicles, the code values of the first type of coded information allocated to the vehicles are different; the vehicle-mounted end feeds back the first type of coded information which is allocated by the server to the vehicle where the vehicle-mounted end is located to the laser radar of the vehicle where the vehicle-mounted end is located; and the relevant parameters of the laser radar are adjusted on the basis of the first type of coded information. With the method, device and system for controlling the unmanned driving of the vehicles of the invention adopted, parameters adopted by laser radars on a large number of driverless vehicles are different under a scene in which the driverless vehicles run on road sections which are not far away from each other, and therefore, crosstalk is avoided, and the laser radars on the vehicles can be facilitated to distinguish echo signals from the signals of other laser radars.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a method, device and system for controlling unmanned driving of vehicles. Background technique [0002] With the continuous advancement of science and technology, unmanned driving has gradually become a reality from an unreachable dream. In future unmanned driving scenarios, vehicles need to rely on devices such as lidar to perceive other vehicles / objects around them. [0003] The working principle of the laser radar is to emit a laser beam to the surrounding three-dimensional space as a detection signal. Signals are compared to obtain relevant information about the object to be measured, such as distance, speed, etc. [0004] When multiple driverless cars are driving on a road section that is not far apart, the lidar sensor of each car may receive signals from other lidar sensors around it, resulting in crosstalk. In this case, lidar needs Distinguish ...

AI Technical Summary

Problems solved by technology

If the probability of crosstalk is reduced by increasing the total number of codes N, it will lead to an increase in system power consumption, an increase in cost, and a decrease in measurement frequency, which may even be difficult to achieve.

[0008] At present, the total number of codes N of lidars with the function of suppressing crosstalk by using random codes is usually on the order of 10^2. , the effect of the above method to suppress crosstalk is very limited (that is, there is still a greater probability of crosstalk occurring)

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