Patents by Inventor Liangchen YE
Liangchen YE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230375682Abstract: A method for controlling a lidar and a lidar are provided. The method includes: emitting a first sequence of laser pulses, the first sequence of laser pulses including at least a first detection pulse and a second detection pulse coded at a time interval T; receiving a plurality of echo pulses; determining whether an overlay is present among the plurality of echo pulses; and controlling the lidar to emit a second sequence of laser pulses to perform re-detection based on a determination of whether the overlay is present among the plurality of echo pulses.Type: ApplicationFiled: June 13, 2023Publication date: November 23, 2023Inventors: Fuwei HUANG, Congbo SHI, Liangchen YE, Shaoqing XIANG
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Publication number: 20230341523Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.Type: ApplicationFiled: April 25, 2023Publication date: October 26, 2023Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
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Patent number: 11668802Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.Type: GrantFiled: January 9, 2020Date of Patent: June 6, 2023Assignee: Hesai Technology Co., Ltd.Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
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Publication number: 20220236392Abstract: The present invention provides a detection device and a method for adjusting a parameter thereof. The device includes a real-time collection module, configured to collect and obtain environment information in real time; a real-time location information obtaining module, configured to obtain location information in real time; a parameter determining module, configured to determine a value of a target parameter of the detection device based on at least either the obtained environment information or the obtained location information; and a parameter adjustment module, configured to adjust the parameter of the detection device in real time based on the determined value of the target parameter. Based on the present invention, the parameter of the detection device can be adjusted in real time, and the detection device can adapt to diversified road conditions and improve detection accuracy.Type: ApplicationFiled: April 11, 2022Publication date: July 28, 2022Inventors: Liangchen YE, Shengping MAO, Rui WANG, Xuezhou ZHU, Shaoqing XIANG, Yifan LI, Shixiang WU
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Patent number: 11346926Abstract: The present invention provides a detection device and a method for adjusting a parameter thereof. The device includes a real-time collection module, configured to collect and obtain environment information in real time; a real-time location information obtaining module, configured to obtain location information in real time; a parameter determining module, configured to determine a value of a target parameter of the detection device based on at least either the obtained environment information or the obtained location information; and a parameter adjustment module, configured to adjust the parameter of the detection device in real time based on the determined value of the target parameter. Based on the present invention, the parameter of the detection device can be adjusted in real time, and the detection device can adapt to diversified road conditions and improve detection accuracy.Type: GrantFiled: July 15, 2020Date of Patent: May 31, 2022Assignee: Hesai Technology Co., Ltd.Inventors: Liangchen Ye, Shengping Mao, Rui Wang, Xuezhou Zhu, Shaoqing Xiang, Yifan Li, Shixiang Wu
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Publication number: 20210278510Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.Type: ApplicationFiled: May 6, 2021Publication date: September 9, 2021Inventors: Zhengqing PAN, Liangchen YE, Shaoqing XIANG, Yifan LI
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Patent number: 11002835Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.Type: GrantFiled: September 30, 2020Date of Patent: May 11, 2021Assignee: Hesai Photonics Technology Co., Ltd.Inventors: Zhengqing Pan, Liangchen Ye, Shaoqing Xiang, Yifan Li
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Publication number: 20210011138Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Inventors: Zhengqing PAN, Liangchen YE, Shaoqing XIANG, Yifan LI
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Publication number: 20200355803Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.Type: ApplicationFiled: January 9, 2020Publication date: November 12, 2020Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
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Publication number: 20200348402Abstract: The present invention provides a detection device and a method for adjusting a parameter thereof. The device includes a real-time collection module, configured to collect and obtain environment information in real time; a real-time location information obtaining module, configured to obtain location information in real time; a parameter determining module, configured to determine a value of a target parameter of the detection device based on at least either the obtained environment information or the obtained location information; and a parameter adjustment module, configured to adjust the parameter of the detection device in real time based on the determined value of the target parameter. Based on the present invention, the parameter of the detection device can be adjusted in real time, and the detection device can adapt to diversified road conditions and improve detection accuracy.Type: ApplicationFiled: July 15, 2020Publication date: November 5, 2020Inventors: Liangchen YE, Shengping MAO, Rui WANG, Xuezhou ZHU, Shaoqing XIANG, Yifan LI, Shixiang WU
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Patent number: 10571552Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.Type: GrantFiled: June 18, 2019Date of Patent: February 25, 2020Assignee: HESAI PHOTONICS TECHNOLOGY CO., LTD.Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
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Patent number: 10444356Abstract: A Lidar system may comprise: a laser configured to emit a laser beam; a reflector configured to receive the emitted laser beam and allow at least a portion of the emitted laser beam to transmit through the reflector, the at least the portion of the emitted laser beam being detection light; a two-dimensional scanning galvanometer; and a detector. The two-dimensional scanning galvanometer is configured to reflect the detection light to scan across an environment, receive at least a portion of the detection light reflected by a target in the environment, the at least the portion of the detection light reflected by the target being receiving light, and reflect the receiving light towards the reflector. The reflector is further configured to reflect the receiving light towards the detector. The detector is configured to measure the receiving light to detect the target.Type: GrantFiled: October 16, 2018Date of Patent: October 15, 2019Assignee: Hesai Photonics Technology Co., Ltd.Inventors: Shixiang Wu, Liangchen Ye, Rui Wang, Shaoqing Xiang, Yifan Li
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Publication number: 20190113622Abstract: A Lidar system may comprise: a laser configured to emit a laser beam; a reflector configured to receive the emitted laser beam and allow at least a portion of the emitted laser beam to transmit through the reflector, the at least the portion of the emitted laser beam being detection light; a two-dimensional scanning galvanometer; and a detector. The two-dimensional scanning galvanometer is configured to reflect the detection light to scan across an environment, receive at least a portion of the detection light reflected by a target in the environment, the at least the portion of the detection light reflected by the target being receiving light, and reflect the receiving light towards the reflector. The reflector is further configured to reflect the receiving light towards the detector. The detector is configured to measure the receiving light to detect the target.Type: ApplicationFiled: October 16, 2018Publication date: April 18, 2019Inventors: Shixiang WU, Liangchen YE, Rui WANG, Shaoqing XIANG, Yifan LI