Vehicle position detection system
First Claim
1. A vehicle position detection system for detecting a position of a vehicle, the vehicle position detection system comprising:
- a GPS receiving device mounted on the vehicle to receive GPS signals from a GPS satellite indicating a position of the vehicle;
a light beacon communication device mounted on the vehicle to receive light beacon information from a light beacon arranged in front of an intersection of a road; and
a central processing unit mounted on the vehicle to correct the position of the vehicle indicated by the GPS signals based on the light beacon information upon reception of the light beacon information by the light beacon communication device unless the vehicle travels, starting from the reception of the light beacon information by the light beacon communication device, for more than a predetermined time or a predetermined distance.
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Accused Products
Abstract
A vehicle position detection system is provided to detect a vehicle position with higher accuracy. The vehicle position detection system includes a GPS receiving device mounted on the vehicle to receive GPS signals from a GPS satellite, a light beacon communication device mounted on the vehicle to receive light beacon information from a light beacon arranged in front of an intersection of a road, and a central processing unit mounted on the vehicle to correct a position of the vehicle based on the light beacon information upon reception of the light beacon information by the light beacon communication device.
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Citations
12 Claims
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1. A vehicle position detection system for detecting a position of a vehicle, the vehicle position detection system comprising:
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a GPS receiving device mounted on the vehicle to receive GPS signals from a GPS satellite indicating a position of the vehicle; a light beacon communication device mounted on the vehicle to receive light beacon information from a light beacon arranged in front of an intersection of a road; and a central processing unit mounted on the vehicle to correct the position of the vehicle indicated by the GPS signals based on the light beacon information upon reception of the light beacon information by the light beacon communication device unless the vehicle travels, starting from the reception of the light beacon information by the light beacon communication device, for more than a predetermined time or a predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle position detection system for detecting a position of a vehicle, the vehicle position detection system comprising:
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a GPS receiving device mounted on the vehicle to receive GPS signals from a GPS satellite; a light beacon communication device mounted on the vehicle to receive light beacon information from a light beacon arranged in front of an intersection of a road; and a central processing unit mounted on the vehicle to determine a position of the vehicle based on at least one of the GPS signals and the light beacon information, wherein the central processing unit determines the position of the vehicle using the light beacon information instead of the GPS signals unless the vehicle travels, starting from the reception of the light beacon information by the light beacon communication device, for more than a predetermined time or a predetermined distance. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification