Inter-vehicle communication method and device
First Claim
1. An inter-vehicle communication method for performing communication by sequentially relaying predetermined information among vehicles, the method comprising:
- broadcasting the predetermined information from a first vehicle to peripheral vehicles of the first vehicle;
designating a relay vehicle from among the peripheral vehicles of the first vehicle; and
broadcasting, by the relay vehicle, the predetermined information to peripheral vehicles of the relay vehicle.
1 Assignment
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Accused Products
Abstract
An inter-vehicle communication method according to the present invention performs communication by sequentially relaying transmission information among vehicles. For broadcasting the transmission information to peripheral vehicles, a vehicle transmitting the transmission information designates relay vehicles and causes the relay vehicles to broadcast reception information to peripheral vehicles of the relay vehicles. In order to designate the relay vehicles, the vehicle transmitting the transmission information receives positional information from its peripheral vehicles, identifies branch roads on which the respective peripheral vehicles exist by referring to map information, and designates as relay vehicles peripheral vehicles farthest away from the vehicle transmitting the transmission information on the respective branch roads.
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Citations
20 Claims
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1. An inter-vehicle communication method for performing communication by sequentially relaying predetermined information among vehicles, the method comprising:
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broadcasting the predetermined information from a first vehicle to peripheral vehicles of the first vehicle;
designating a relay vehicle from among the peripheral vehicles of the first vehicle; and
broadcasting, by the relay vehicle, the predetermined information to peripheral vehicles of the relay vehicle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An on-vehicle inter-vehicle communication device for performing communication by sequentially relaying predetermined information among vehicles, the device comprising:
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a transmitting unit for transmitting the predetermined information from the vehicle to other vehicles through inter-vehicle communication;
a receiving unit for receiving the predetermined information transmitted from other vehicles through inter-vehicle communication;
a signal processing unit for designating a relay vehicle, broadcasting the predetermined information to peripheral vehicles of the vehicle, determining whether or not the vehicle is designated as a relay vehicle when the predetermined information is received from other vehicles, and designating the next relay vehicle and broadcasting received predetermined information to peripheral vehicles of the vehicle when said vehicle is designated as a relay vehicle;
a communication unit for transferring information to and from a navigation device; and
a display unit for receiving the predetermined information and displaying information. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. An on-vehicle inter-vehicle communication device for performing communication by sequentially relaying predetermined information among vehicles, the device comprising:
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a transmitting unit for transmitting the predetermined information from the vehicle to other vehicles through inter-vehicle communication;
a receiving unit for receiving the predetermined information transmitted from other vehicles through inter-vehicle communication; and
a signal processing unit for designating a relay vehicle, broadcasting the predetermined information to peripheral vehicles of the vehicle, determining whether or not the vehicle is designated as a relay vehicle when the predetermined information is received from other vehicles, and designating the next relay vehicle and broadcasting received predetermined information to peripheral vehicles of the vehicle when said vehicle is designated as the relay vehicle, wherein for broadcasting the predetermined information, the signal processing unit of a jth relay vehicle performing jth relaying adds an ID of a transmission source vehicle and IDs of one or more (j+1)th relay vehicles to the predetermined information, and wherein, for broadcasting the predetermined information, one of the (j+1)th relay vehicles designates as a (j+2)th relay vehicle a peripheral vehicle that is farthest away from the (j+1)th relay vehicle on each branch road, that is not the jth relay vehicle and that is not any other (j+1)th relay vehicle. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification