专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4321904A1 LASER RADAR AND DISTANCE MEASURING METHOD 审中-实审
公开(公告)号：EP4321904A1
公开(公告)日：2024-02-14
申请号：EP21935875.1
申请日：2021-12-15
申请人： Hesai Technology Co., Ltd.
发明人： YANG, Jin , GU, Tianchang , WANG, Chongyang , XIANG, Shaoqing
IPC分类号： G01S17/48 , G01S7/484 , G01S7/4865 , G01S7/487
摘要： A laser radar and a distance measuring method. The laser radar comprises: a laser emitting device (11), a control device (12), a detection device (13) and a data processing device (14), the control device (12) is configured to be capable of generating a trigger signal on the basis of a time sequence random number; the laser emitting device (11) comprises at least one laser (111) and a driver (112) coupled to the laser (111), the driver (112) is configured to drive, according to the trigger signal, the laser (111) to emit a laser pulse signal; the detection device (13) is configured to receive an echo signal after the laser pulse signal is reflected by a target object, and convert the echo signal into an electrical signal; and the data processing device (14) determines distance information of the target object on the basis of the time when emitting the laser pulse signal and the time when receiving the echo signal. The laser radar uses the solution of random light emission, such that interference points which interfere with the laser radar do not have a spatial correlation; and the time sequence and amplitude of multiple pulses are then modulated by using multi-pulse coding, so as to determine whether an echo code is the same as an emitted pulse sequence code and identify an echo signal, thereby further improving the anti-interference effect.

IPRDB

热门服务

关于我们

友情链接

联系方式