Method and apparatus for peripheral vehicle position calculation
First Claim
1. A peripheral vehicle position calculation method, comprising the acts of:
- providing in a vehicle-mounted device operable to calculate a position of a peripheral vehicle near the vehicle in accordance with information included in a message received via inter-vehicle communication;
broadcasting a first set of data including a vehicle speed and a traveling direction of the vehicle at a predetermined period via the inter-vehicle communication when the vehicle changes the vehicle speed or the traveling direction;
broadcasting a second set of data including a current vehicle position, the vehicle speed, and the traveling direction of the vehicle at predetermined timing via the inter-vehicle communication; and
calculating the position of the peripheral vehicle in accordance with the first and second set of data when receiving the first data and the second data from the peripheral vehicle.
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Abstract
A signal processing unit of a radio communication section of a vehicle-mounted device mounted on a vehicle broadcasts first sets of data, each set of data including a vehicle speed and a traveling direction of the vehicle at a predetermined period when the vehicle changes the vehicle speed or the traveling direction. The signal processing unit broadcasts second sets of data including the current vehicle position, the vehicle speed, and the traveling direction of the vehicle at predetermined timing. When receiving the first data and the second data from a peripheral vehicle, the signal processing unit calculates a position of the peripheral vehicle in accordance with the first and second sets of data.
23 Citations
23 Claims
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1. A peripheral vehicle position calculation method, comprising the acts of:
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providing in a vehicle-mounted device operable to calculate a position of a peripheral vehicle near the vehicle in accordance with information included in a message received via inter-vehicle communication;
broadcasting a first set of data including a vehicle speed and a traveling direction of the vehicle at a predetermined period via the inter-vehicle communication when the vehicle changes the vehicle speed or the traveling direction;
broadcasting a second set of data including a current vehicle position, the vehicle speed, and the traveling direction of the vehicle at predetermined timing via the inter-vehicle communication; and
calculating the position of the peripheral vehicle in accordance with the first and second set of data when receiving the first data and the second data from the peripheral vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vehicle-mounted device for calculating a position of a peripheral vehicle near the vehicle, the vehicle-mounted device comprising:
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a sending/receiving unit operable to send or receive information to and from a vehicle-mounted device of a peripheral vehicle;
a vehicle position detection unit operable to acquire information on a vehicle position, a vehicle speed, and a traveling direction; and
a signal processing unit operable to generate a first set of data at a predetermined period from the information acquired from the vehicle position detection unit when said vehicle changes the vehicle speed or the traveling direction, the first set of data including the vehicle speed and the traveling direction of the vehicle, operable to generate a second set of data at a predetermined period, the second set of data including the vehicle position, the vehicle speed and the traveling direction of said vehicle, and operable to calculate the position of the peripheral vehicle from first and second sets of data for the vehicle and first and second sets of data from the peripheral vehicle;
wherein the sending/receiving unit is operable to send the first set and second sets of data for the vehicle and to receive the first and second sets of data from a peripheral vehicle. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification