US 12,420,806 B2
Determination system
Yuta Inoue, Osaka (JP); Yosuke Matsushita, Osaka (JP); and Keisuke Nagata, Osaka (JP)
Assigned to PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Oct. 17, 2023, as Appl. No. 18/381,064.
Claims priority of application No. 2022-170066 (JP), filed on Oct. 24, 2022.
Prior Publication US 2024/0132077 A1, Apr. 25, 2024
Prior Publication US 2024/0227817 A9, Jul. 11, 2024
Int. Cl. B60W 40/08 (2012.01)
CPC B60W 40/08 (2013.01) [B60W 2040/0827 (2013.01); B60W 2040/0845 (2013.01); B60W 2040/0872 (2013.01); B60W 2540/221 (2020.02)] 18 Claims
OG exemplary drawing
 
1. A determination system comprising:
a processor; and
a memory including instructions that, when executed by the processor, causes the processor to perform operations, the operations including:
obtaining current sleepiness data, sleepiness data being time-series data of a sleepiness level of a driver who drives a mobile body;
extracting at least one past data from one or more past data based on a route on which the current sleepiness data is obtained and a time frame in which the current sleepiness data is obtained, the one or more past data being sleepiness data obtained in past;
generating reference data from the at least one past data, the reference data being time-series data of the sleepiness level used as a reference for determining whether the sleepiness of the driver is normal; and
determining whether sleepiness of the driver is normal, based on the current sleepiness data and the reference data, wherein
the processor makes a comparison between a first change speed that is a change speed of sleepiness indicated by the current sleepiness data and a second change speed that is a change speed of sleepiness indicated by the reference data, and determines that the sleepiness of the driver is not normal when the first change speed is greater than the second change speed.