Aisin Seiki Kabushiki Kaisha

Japan Radio Co., Ltd.

Aisin Corporation

Eiji Niwa

Yoshichika Konishi

Yasumasa Yamamoto

Ippei Sugae

Hisashi Inaba

Naoto Sasagawa

Kunimitsu Arai

Yasumasa Yamanoto

Shigeyuki Asami

Kouji Kashima

An obstacle detection sensor includes: a controller configured to determine a detection condition of an obstacle on a road; a distance sensor unit configured to acquire distance information by oscillating a vibration wave and receiving a reflected wave of the oscillated vibration wave; a communication unit configured to communicate with an outside to acquire road surface information; and a storage unit configured to store detection relationship information for identifying the obstacle based on the distance information, in which the controller compares the detection relationship information read from the storage unit with the distance information and the road surface information acquired from the distance sensor unit and the communication unit to determine the detection condition.

Obstacle detection sensor

A tire chain attachment determination device includes: an acquisition unit that acquires vibration information on a vibration of a vehicle detected by a vibration detection unit provided in the vehicle; and a determination unit that determines whether or not a tire chain is attached to the vehicle based on a frequency characteristic of the vibration of the vehicle using the vibration information.

Tire chain attachment determination device

A mobile body-mounted communication device mounted in a mobile body such as a vehicle and making difficult the long-time tracking of the moving path of the mobile body. The mobile body-mounted communication device mounted in a mobile body and used for transmitting/receiving packet information is characterized by comprising a borrowing address acquiring section for acquiring lending addresses as borrowed addresses from an address management device managing lending addresses, a borrowing time information acquiring section for acquiring information representing predetermined times during which the borrowing addresses can be used from the address management device, and a transmitting section for transmitting packet information including information on a borrowing address out of the borrowing addresses and the mobile body during the predetermined borrowing times determined for the borrowing addresses.

Mobile body-mounted communication apparatus and address management apparatus

A mobile unit communication apparatus, including a wireless transceiver, is provided at a mobile unit. At the mobile unit communication apparatus, a surrounding object detection unit detects objects surrounding the mobile unit. The surrounding communication impediment detection unit detects a likelihood of an impediment to communication in the surroundings of the mobile unit from conditions for surrounding objects detected by the surrounding object detection unit. A relay communication unit transmits information received by the wireless transceiver from the wireless transceiver. A relay wait time setting unit sets a time until information received by the wireless transceiver is transmitted by the relay communication unit from the wireless transceiver longer for a larger likelihood of an impediment to communication detected by the surrounding communication impediment detection unit.

Mobile unit communication apparatus and computer-readable recording medium

A vehicle communication device mounted to each of vehicles for sending and receiving information among plural vehicles includes a traveling lane detecting device for detecting a vehicle traveling lane on a road surface and an appropriateness of relay determining device for determining an appropriateness of relay on the basis of the vehicle traveling lane detected by the traveling lane detecting device, wherein the vehicle communication device assigns a vehicle to be requested to relay the information on the basis of the result determined by the appropriateness of relay determining device and sends the information to the assigned vehicle.

Vehicle communication device

A communication device for a movable body mounted to each of movable bodies for exchanging information among the movable bodies includes a surrounding detecting device for detecting a surrounding of the movable body, an appropriateness of relay determining device for determining an appropriateness of relay, a first transmitting process device for transmitting a first signal, a first receiving process device for receiving the first signal sent by the first transmitting process device, a second transmitting process device for determining whether or not the relay is required, and a second receiving process device for receiving the second signal sent by the second transmitting process device.

Communication device for a movable body

A mobile communication apparatus is provided, which permits highly efficient communication even between mobile units that cannot communicate directly because of signal-shielding communication obstacles. The mobile communication apparatusincludes transmission means, reception means, surrounding environment detection meansfor detecting whether or not there are communication obstacles in the surroundings of a mobile unit, communication state decision meansfor making decisions as to the quality of the communication state of the mobile unit based on detection results of the surrounding environment detection means, and control meansfor controlling transmission, via the transmission means, of information received by the reception meansbased on decision results of the communication state decision means

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Nagoya, Japan

Eiji Niwa