US 11,911,918 B2
Distance-measuring system and distance-measuring method
Yasushi Tanaka, Osaka (JP); Akihiro Arai, Osaka (JP); and Kenji Fujita, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 16/972,807
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jun. 7, 2019, PCT No. PCT/JP2019/022792
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2019/240051, PCT Pub. Date Dec. 19, 2019.
Claims priority of application No. 2018-110999 (JP), filed on Jun. 11, 2018.
Prior Publication US 2021/0245366 A1, Aug. 12, 2021
Int. Cl. B25J 9/16 (2006.01); G01S 17/894 (2020.01); G01S 17/06 (2006.01); G01S 17/93 (2020.01); B25J 19/06 (2006.01)
CPC B25J 9/1697 (2013.01) [B25J 9/1664 (2013.01); B25J 9/1676 (2013.01); B25J 19/06 (2013.01); G01S 17/06 (2013.01); G01S 17/894 (2020.01); G01S 17/93 (2013.01); G05B 2219/37631 (2013.01); G05B 2219/40196 (2013.01); G05B 2219/40202 (2013.01); G05B 2219/40203 (2013.01); G05B 2219/40298 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A distance-measuring system, comprising:
a first ranging sensor that detects, for a subject within a first detection range, a distance from the first ranging sensor to the subject;
a second ranging sensor that detects, for a subject within a second detection range more limited than the first detection range, a distance from the second ranging sensor to the subject and has resolution higher than resolution of the first ranging sensor; and
an image processing device, wherein
the image processing device includes:
a machine detector that detects a position of a mobile machine, based on a first sensed result obtained by the first ranging sensor;
a sensor controller that adjusts the second detection range to incorporate the position of the mobile machine detected by the machine detector into the second detection range covered based on the first sensed result obtained by the first ranging sensor; and
a controller that controls the mobile machine, based on a second sensed result obtained by the second ranging sensor.