METHOD AND APPARATUS FOR PROVIDING SAFE SPEED OF A VEHICLE AND USING THE INFORMATION
First Claim
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1. A method for encoding traffic information, comprising:
- creating event information including a safe speed to limit a speed of a vehicle on a road segment;
creating location information about the road segment; and
creating a traffic information message including the event information and the location information.
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Abstract
The present invention provides a method and device for providing a safe driving speed for a road segment containing a dangerous element such as slipperiness of road surface. One method according to an embodiment of the present invention decodes from received traffic information signals a safe speed used to limit the speed of a vehicle on a road segment and location information about the corresponding segment. When the current location information indicates the road segment, the speed of the vehicle is forced to be reduced below the received safe speed.
27 Citations
26 Claims
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1. A method for encoding traffic information, comprising:
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creating event information including a safe speed to limit a speed of a vehicle on a road segment;
creating location information about the road segment; and
creating a traffic information message including the event information and the location information. - View Dependent Claims (2, 3, 4, 5)
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6. A method for decoding traffic information, comprising:
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extracting a traffic information message from a received signal; and
extracting from the extracted traffic information message, event information including a safe speed to limit a speed of a vehicle on a road segment and location information of the road segment. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. An apparatus for decoding traffic information, comprising:
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a decoder to extract, from at least one received traffic information message, event information including a safe speed to limit a speed of a vehicle on a road segment and location information of the road segment, and to decode the extracted information;
a receiver to obtain information on a current location of the vehicle; and
a controller to control the speed of the vehicle based on the safe speed and the location information decoded by the decoder and the information on the current location obtained from the receiver. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An apparatus for providing a user with traffic information, comprising:
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a decoder to extract, from a received signal, event information including a safe speed to limit a speed of a vehicle on a road segment and location information on the road segment;
a controller to control the speed of the vehicle based on the extracted information according to a request of a user; and
an interface unit to receive the request of the user for controlling the speed of the vehicle based on received information. - View Dependent Claims (21)
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22. An apparatus for providing a user with traffic information, comprising:
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a decoder to extract, from a received signal, event information including a safe speed to limit a speed of a vehicle on a road segment and location information on the road segment; and
a controller to control the speed of the vehicle based on the extracted information according to a request of a use, wherein in a condition that the speed of the vehicle is not controlled based on received information, the controller provides an interface unit with a button having a function of requesting a speed of the vehicle to be controlled based on the received information. - View Dependent Claims (23, 24, 25)
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26. A device for providing traffic information in a moving object, comprising:
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a receiver to obtain information on a current location of the moving object, and to receive a traffic information message including safe speed information for a road segment and location information of the road segment; and
a controller to compare the current location of the moving object with the received location information, and to selectively and automatically vary an actual speed of the moving object according to the safe speed information if the current location of the moving object belongs to the road segment identified in the received location information.
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Specification