US 11,867,810 B2
Distance measurement system and method for displaying detection intensity distribution of distance measurement sensor
Kenji Akahoshi, Tokyo (JP); and Norimoto Ichikawa, Tokyo (JP)
Assigned to HITACHI-LG DATA STORAGE, INC., Tokyo (JP)
Filed by Hitachi-LG Data Storage, Inc., Tokyo (JP)
Filed on Jun. 14, 2021, as Appl. No. 17/346,409.
Claims priority of application No. 2020-122589 (JP), filed on Jul. 17, 2020.
Prior Publication US 2022/0018959 A1, Jan. 20, 2022
Int. Cl. G01B 11/02 (2006.01); G01S 17/08 (2006.01); G01S 7/51 (2006.01); G01S 7/486 (2020.01); G01S 7/484 (2006.01)
CPC G01S 17/08 (2013.01) [G01B 11/026 (2013.01); G01S 7/484 (2013.01); G01S 7/486 (2013.01); G01S 7/51 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A distance measurement system in which a plurality of distance measurement sensors are installed to detect an object in a measurement area, wherein each of the distance measurement sensors detects the object based on a transmission time of light, the system comprising:
a detection intensity distribution display device including a computer and a display coupled to the computer, the computer configured to:
generate respective detection intensity distributions for each of the detectable areas of each distance measurement sensor based on numerical values A each decreasing as a distance from each of the distance measurement sensors increases,
display, on the display, colors or lights and shades indicating the generated detection intensity distributions based on magnitudes of the numerical values of the generated intensity distributions,
wherein at least two of the detectable areas of the plurality of distance measurement sensors overlap each other, and the computer is configured to multiply the numerical values A at an overlapping location by a weighting factor to perform addition on the numerical values A to generate the detection intensity distributions, and
wherein the computer is configured to change the weighting factor according to an incident angle and a number of incident rays of the light from each of the distance measurement sensors, the object being irradiated with the light.