The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 03, 2020

Filed:

Mar. 31, 2015
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Jose Albornoz, Iver Heath, GB;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 1/0967 (2006.01); G08G 1/16 (2006.01);
U.S. Cl.
CPC ...
G08G 1/0967 (2013.01); G08G 1/096716 (2013.01); G08G 1/096791 (2013.01); G08G 1/163 (2013.01);
Abstract

A vehicular safety system employing an adaptive epidemic information dissemination protocol running on a wireless ad-hoc network composed by neighboring vehicles and roadside stations. The protocol is based on storage and re-transmission of messages by vehicle on-board units; both storage time and re-transmission period are adaptively adjusted to make information spread through the network reasonably certain. An on-board vehicle system monitors a speed and acceleration to detect collisions or any other dangerous situations that might compromise the safety; when such an event is detected a time-stamped message identifies the vehicle and approximate location and event type. A panic button can trigger an emergency message in an immediate threat situation. Roadside stations add their location to the messages they relay; they also receive messages transmitted from passing vehicles, relaying them to law-enforcement agencies. Roadside stations can also broadcast messages aimed at locating and safely disabling stolen vehicles.


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