Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Yoshimasa Shirosaki

Hiroaki Sudo

Tsuyoshi Ueno

Shintaro Muramatsu

Yoshiyuki Okubo

Satoshi Tanaka

Yasuhisa Yamazaki

Kunihiko Sakaibara

Kazuyuki Yoshino

Jun Shibata

The present application: receives positioning data from each of a plurality of positioning terminals that have received positioning signals transmitted from a plurality of satellites; uses the received positioning data to detect, for each satellite, the difference between the positioning signal reception quality at a first positioning terminal and the positioning signal reception quality at at least one second positioning terminal; and uses the difference for each satellite to determine a satellite to be used for positioning computation for the first positioning terminal.

Server, satellite positioning system, and satellite positioning method

A pedestrian terminal device receives pedestrian information transmitted from another pedestrian terminal device which is present in the vicinity of the pedestrian terminal device. A location of the pedestrian terminal device is acquired, and it is determined whether or not a pedestrian who carries the pedestrian terminal device is located inside a pedestrian group based on the location of the pedestrian terminal device and a location of the other pedestrian terminal device included in the pedestrian information. When the pedestrian is located inside the pedestrian group, pedestrian-vehicle communication is stopped.

Pedestrian terminal device, vehicle-mounted terminal device, pedestrian-to-vehicle communication control device, pedestrian-to-vehicle communication system, and pedestrian-to-vehicle communication method

In order to enable a driver in driving a vehicle to quickly and assuredly recognize a pedestrian having a collision risk with the vehicle even when it is difficult for the driver to recognize the pedestrian by eyes, such as during night time, an in-vehicle terminal device is configured to: determine a collision risk based on pedestrian position information and vehicle position information; generate turn-on instruction information which, when the pedestrian is determined to have the collision risk with the vehicle, causes an indicator light carried by the pedestrian to be turned on in a prescribed light color; and transmit the turn-on instruction information to a pedestrian terminal device via pedestrian-vehicle communication, and wherein the pedestrian terminal device is configured to: receive the turn-on instruction information transmitted from the in-vehicle terminal device; and turn on the indicator light based on the turn-on instruction information.

Pedestrian-vehicle communication system, in-vehicle terminal device, pedestrian terminal device and safe-driving assistance method

Pedestrian terminal device that can save power consumption. The pedestrian terminal device carried by a pedestrian is provided with an operation mode selector for selecting one of a principal terminal operation mode wherein a pedestrian-vehicle communication with an in-vehicle terminal device is performed representing other pedestrian terminal devices, and an in-group terminal operation mode wherein a short-range wireless communication of a shorter range and a smaller power output than the pedestrian-vehicle communication is performed with another pedestrian terminal device operating in the principal terminal operation mode. Because the pedestrian terminal device in which the principal terminal operation mode is selected communicates with other pedestrian terminal devices operating in the in-group terminal operation mode via the short-range wireless communication of a shorter-range and a smaller power output than the pedestrian-vehicle communication, the power consumption of the pedestrian terminal device can be saved.

Pedestrian-vehicle communication system

Growing community of inventors

Kanagawa, Japan

Yoshimasa Shirosaki