Patent ID: 11896396
Assignee: TS TECH CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 7:
8. The sensor-equipped seat according to claim 6, wherein
the respiration sensor detects the respiratory signal of the seated occupant and acquires respiratory data fluctuating with respiration,
the controller further has a second calculation unit calculating, by computation, a degree of change in respiration, the degree of change in respiration being a degree of change in the respiratory data per unit time, and
the wakefulness determination unit determines the wakefulness state of the seated occupant by using a Bayesian filter in which a probability of the seated occupant's drowsiness with regard to the degree of change in respiration is set as a likelihood and the likelihood is multiplied by a prior probability of drowsiness.