Occupant detection system, and vehicular air conditioner having the same

An occupant detection system provided in a vehicle that detects a state of an occupant, comprising:

• a state detection unit that detects a state of an object;
• a detection position changing unit that changes a position of a detection region, the detection region being a region in which state is detected by the state detection unit;
• and
• a controller that controls an operation of the detection position changing unit, wherein
• a position of the detection region is set to a predetermined initial position during a period of time from when a start switch provided in the vehicle is turned off until when the start switch is turned on,
• the detection position changing unit includes an actuator that operates when supplied with electric power to change the position of the detection region, and
• the controller controls the operation of the actuator such that the position of the detection region reaches the predetermined initial position during the period of time from when the start switch is turned off until when the start switch is turned on.

An occupant detection system provided in a vehicle that detects a state of an occupant, comprising:

• a state detection unit that detects a state of an object;
• a detection position changing unit that changes a position of a detection region, the detection region being a region in which state is detected by the state detection unit;
• and
• a controller that controls an operation of the detection position changing unit, wherein
• a position of the detection region is set to a predetermined initial position during a period of time from when a start switch provided in the vehicle is turned off until when the start switch is turned on,
• the detection position changing unit includes an actuator that operates when supplied with electric power to change the position of the detection region, and
• the detection position changing unit includes a restoring mechanism that returns the position of the detection region to the initial position by elastic force when power supply to the actuator is stopped.