Denso Corporation

Denso Corpora Tion

Takahisa Matsumoto

Takashi Saitou

Koji Sakamoto

Masashi Mori

Yuuji Kakuya

An occupant detection system includes a transmitter provided adjacent to a first side face of a vehicle before a predetermined seat and successively transmitting a radio wave over a range covering a seat door located on a second side face of the vehicle and in a same row as the predetermined seat, a receiver provided adjacent to the second side face behind the predetermined seat and receiving the radio wave transmitted from the transmitter, and an occupant detection device including a reception intensity acquirer, an occupant detector, an opening and closing detector. The reception intensity acquirer successively acquires a reception intensity of a radio wave successively received by the receiver. The occupant detector detects an occupant in the vehicle according to the reception intensity of the radio wave received by the receiver while the opening and closing detector detects that the seat door is open.

Occupant detection system and occupant detection device

A detection apparatus includes: a transmitter transmitting an electric wave toward an inside of a vehicle; a receiver receiving the transmitted electric wave each time the transmitter transmits the electric wave, and performing output in accordance with reception strength of the received electric wave; and a determination portion, based on the reception strength of the electric wave received by the receiver, comparing a change mode of the electric wave received by the receiver changing over time to a predetermined reference mode and determining whether a person is present between the receiver and the transmitter.

Detection apparatus

An object detection apparatus includes: a transmitter transmitting a radio wave with a predetermined intensity at the radio wave transmission end; a receiver receiving the radio wave, which is to be transmitted when the radio wave is transmitted from the transmitter, at the radio wave reception end; a setter setting a transmission scheme of the transmitter to a plurality of different transmission characteristics; a transmission controller controlling the transmitter to transmit the radio wave with the transmission scheme, which is to be set when the setter sets the transmission scheme; and a detector detecting a presence of the object at a position inside the vehicle, based on a detected reception intensity indicating a respective radio wave reception intensity received by the receiver, the object blocking the radio wave transmitted from the transmitter to the receiver at the position inside the vehicle.

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Kariya, Japan

Takahisa Matsumoto