US 8,543,319 B2Granted

Communication equipment, inter-vehicle communication control method and inter-vehicle communication system

AssigneeRenesas Electronics Corporation

InventorsTakashi Kawauchi, Yuki Horita, Tatsuaki Osafune

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Abstract

Communication equipment that received transfer data including data to be transferred, position information of a destination of the data to be transferred, position information of relay points used to determine a route to the destination, and position information of a last transferring vehicle determines a standby time that becomes shorter as a distance between the position of the last transferring vehicle and the position of a host vehicle becomes longer in the case where the host vehicle is not located in a predetermined range on the basis of the relay points. In addition, the communication equipment determines the standby time that becomes longer as a distance between the position of the host vehicle and the position of the relay point becomes longer in the case where the host vehicle is located in the predetermined range, and performs a process of transmitting the transfer data after the standby time passes.

Claims9

Dependent claims

A communication device comprising:

a transmission/reception unit that receives transfer data for indicating vehicle running conditions, and performs a process of transmitting the transfer data after passage of a standby time following receipt of the transfer data;
and
a data processing unit that performs a process of calculating the standby time on the basis of the position of a host vehicle and the received transfer data,
wherein the transfer data for indicating the vehicle running conditions comprise data to be transferred, position information of a destination of the data to be transferred, position information of relay points used to determine a route to the destination, and position information of a last transferring vehicle, and
wherein, in the case where the host vehicle is not located in a predetermined range on the basis of the relay points, the data processing unit sets a first time as the standby time that becomes shorter as a distance between the position of the last transferring vehicle and the position of the host vehicle becomes longer, and in the case where the host vehicle is located in the predetermined range, the data processing unit sets a second time as the standby time that becomes longer as a distance between the position of the host vehicle and the position of a relay point becomes longer.

2 more elements

An inter-vehicle communication control method for transmitting and receiving, using communication control equipment, data for indicating vehicle running conditions comprising data to be transferred, position information of a destination of the data to be transferred, position information of relay points used to determine a route to the destination, and position information of the last transferring vehicle, the method comprising:

a first step of receiving the data for indicating the vehicle running conditions transferred by another vehicle;
a second step of calculating, after the first step, a first distance between the position of the last transferring vehicle that transferred the received data and the position of the destination through the relay points and a second distance between the position of the host vehicle and the position of the destination through the relay points;
a third step of calculating a standby time following receipt of the received data to the transfer of the received data for indicating the vehicle running conditions on the basis of the position of the host vehicle and the data received in the first step, if the first distance calculated in the second step is shorter than the second distance;
and
a fourth step of transferring the data for indicating the vehicle running conditions to another vehicle after the standby time calculated in the third step passes,
wherein in the case where the host vehicle is not located in a predetermined range on the basis of the relay points, a first time is set as the standby time in the third step that becomes shorter as a distance between the position of the last transferring vehicle and the position of the host vehicle becomes longer, and in the case where the host vehicle is located in the predetermined range, a second time is set as the standby time in the third step that becomes longer as a distance between the position of the host vehicle and the position of the relay point becomes longer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/105,886Filed 11 May 2011
Priority: JP 2010-11005012 May 2010
Published: US 2011/0282566 A117 Nov 2011
Granted: 24 Sep 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 4/46
For vehicles, e.g. vehicle-to-pedestrians [V2P]: for vehicle-to-vehicle communication [V2V]
G08G 1/093
Traffic information broadcasting: data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
G08G 1/0965
Having an indicator mounted inside the vehicle, e.g. giving voice messages: responding to signals from another vehicle, e.g. emergency vehicle
G08G 1/161
Anti-collision systems: decentralised systems, e.g. inter-vehicle communication

Family

US 2011/0282566 A1Pre-grant publication · published 17 Nov 2011
US 8,543,319 B2This patent

From the US filing history. Foreign family members aren’t listed.

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