Title:
通信装置、通信システムおよび通信方法
Document Type and Number:
Japanese Patent JP5673108
Kind Code:
B2
Abstract:
The present invention has the object of forwarding packets according to a road line without using road line information while preventing unnecessary forwarding of packets. A communication apparatus includes: a positional information acquisition unit that acquires information that indicates the current position of the communication apparatus and the traveling direction of the vehicle unit; a reception unit that receives from a transmission origin device packets that contain forwarding information that indicates the position of the transmission origin device and the position of the transmission destination; a communication control unit that prevents forwarding of packets when the current position is not within an area from the position of the transmission origin device to the position of the transmission destination; an information processing unit that, when the current position is within the area, extracts, as a corrected position, a position that is specified by the traveling direction among positions that are separated from the current position by a remaining distance between the position of the transmission destination and the current position; and a transmission unit that transmits packets that include the forwarding information in which the position of the transmission destination is changed to the corrected position and the position of the transmission origin device is changed to the current position.
Inventors:
高橋 秀明
Application Number:
JP2011000819A
Publication Date:
February 18, 2015
Filing Date:
January 05, 2011
Export Citation:
Assignee:
日本電気株式会社
International Classes:
H04W40/20; G08G1/09; G08G1/16; H04W4/40; H04W84/18
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata