US 12,282,113 B2
Radar system, radar device, and monitoring method
Ryotaro Manabe, Tokyo (JP)
Assigned to KOKUSAI DENKI ELECTRIC INC., Tokyo (JP)
Appl. No. 18/293,954
Filed by HITACHI KOKUSAI ELECTRIC INC., Tokyo (JP)
PCT Filed Aug. 25, 2021, PCT No. PCT/JP2021/031088
§ 371(c)(1), (2) Date Jan. 31, 2024,
PCT Pub. No. WO2023/026384, PCT Pub. Date Mar. 2, 2023.
Prior Publication US 2024/0264273 A1, Aug. 8, 2024
Int. Cl. G01S 7/40 (2006.01); G01S 13/32 (2006.01); G01S 13/87 (2006.01)
CPC G01S 7/4004 (2013.01) [G01S 13/32 (2013.01); G01S 13/87 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A radar system, comprising:
a plurality of radar devices; and
a radar controller,
wherein the radar controller includes a processor and a memory storing instructions therein, the instructions, when executed by the processor, causing the processor to:
detect a failure of each of the plurality of radar devices;
if no failure is detected, control each of the plurality of radar devices to monitor its respective monitoring area using a radar signal frequency modulated with a first modulation band;
if failure is detected in any of the plurality of radar devices, control at least one radar device adjacent to the failed radar device to:
transmit a radar signal frequency modulated with the first modulation band for a first portion of its monitoring area that does not overlap with the monitoring area of the failed radar device; and
transmit a radar signal frequency modulated with a second modulation band for a second portion of its monitoring area that overlaps with the monitoring area of the failed radar device.