US 11,867,815 B2
Laser gas detector and laser gas detection system
Kai Sun, Shanghai (CN); Jun Tao, Shanghai (CN); and Shaoqing Xiang, Shanghai (CN)
Assigned to Hesai Technology Co., Ltd., Shanghai (CN)
Filed by Hesai Technology Co., Ltd., Shanghai (CN)
Filed on Jun. 22, 2021, as Appl. No. 17/354,789.
Application 17/354,789 is a continuation in part of application No. 17/268,122, previously published as PCT/CN2019/100307, filed on Aug. 13, 2019.
Claims priority of application No. 201810936525.4 (CN), filed on Aug. 16, 2018; and application No. 202110178920.2 (CN), filed on Feb. 9, 2021.
Prior Publication US 2021/0321174 A1, Oct. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/88 (2006.01); G01M 3/38 (2006.01); G01N 21/01 (2006.01); G06T 7/73 (2017.01); G01S 17/04 (2020.01); G01N 21/25 (2006.01); G01N 21/39 (2006.01); G01S 7/48 (2006.01); G01S 17/42 (2006.01); G08B 21/16 (2006.01); H04Q 9/00 (2006.01); G06F 18/40 (2023.01); G06V 20/52 (2022.01); G01N 21/17 (2006.01); G06V 10/10 (2022.01); G06V 20/17 (2022.01)
CPC G01S 17/88 (2013.01) [G01M 3/38 (2013.01); G01N 21/01 (2013.01); G01N 21/255 (2013.01); G01N 21/39 (2013.01); G01S 7/4802 (2013.01); G01S 17/04 (2020.01); G01S 17/42 (2013.01); G06F 18/40 (2023.01); G06T 7/73 (2017.01); G06V 20/52 (2022.01); G08B 21/16 (2013.01); H04Q 9/00 (2013.01); G01N 2021/0131 (2013.01); G01N 2021/1795 (2013.01); G06V 10/17 (2022.01); G06V 20/17 (2022.01); H04Q 2209/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laser gas detection system, comprising:
a laser gas detector configured to emit a detection laser beam for detecting a gas concentration parameter of a detection path along which the detection laser beam travels, wherein the laser gas detector comprises a communication interface; and
a near-eye display device configured to:
establish a communication connection to the laser gas detector through the communication interface;
obtain the gas concentration parameter of the detection path;
generate a to-be-projected image according to the gas concentration parameter;
project the to-be-projected image to a field of view of a wearer of the near-eye display device;
obtain directional information of a detection position of the laser gas detector through the first communication apparatus; and
project the to-be-projected image to a position in the field of view of the wearer, wherein the position in the field of view of the wearer is consistent with a direction indicated by the directional information.