Road congestion detection by distributed vehicle-to-vehicle communication systems
First Claim
1. A method, using programmable hardware and software for programming the hardware, for determining traffic condition comprising the steps of:
- determining periodically a position data of a host vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the host vehicle,receiving periodically position data of at least an other vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the other vehicle,storing the position data of the host vehicle and the position data of at least the other vehicle,calculating a relative position data, wherein the relative position data includes relative velocity and relative driving direction between the host vehicle and the other vehicle, andjudging a traffic condition based on the position data of the host vehicle, the position data of the other vehicle and the relative position data, wherein;
based on the position data of the host vehicle a traffic jam estimation value is determined;
based on the relative position data between the host vehicle and the other vehicle a relative traffic jam estimation value is determined;
based on the traffic jam estimation value and the relative traffic jam estimation value a voting jam value is determined; and
the software programs the hardware to perform the steps of the method.
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Abstract
The present invention relates to a method and apparatus for determining traffic condition comprising the steps of determining periodically a position data of a host vehicle 1, wherein the position data includes a time stamp, position, velocity and driving direction of the host vehicle 1, receiving periodically position data of at least an other vehicle 2, 3, 4, wherein the position data includes a time stamp, position, velocity and driving direction of the other vehicle 2, 3, 4, storing the position data of the host vehicle 1 and the position data of at least the other vehicle 2, 3, 4, calculating a relative position data, wherein the relative position data includes relative velocity and relative driving direction between the host vehicle 1 and the other vehicle 2, 3, 4, and judging a traffic condition based on the position data of the host vehicle 1, the position data of the other vehicle 2, 3, 4 and the relative position data.
29 Citations
19 Claims
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1. A method, using programmable hardware and software for programming the hardware, for determining traffic condition comprising the steps of:
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determining periodically a position data of a host vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the host vehicle, receiving periodically position data of at least an other vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the other vehicle, storing the position data of the host vehicle and the position data of at least the other vehicle, calculating a relative position data, wherein the relative position data includes relative velocity and relative driving direction between the host vehicle and the other vehicle, and judging a traffic condition based on the position data of the host vehicle, the position data of the other vehicle and the relative position data, wherein; based on the position data of the host vehicle a traffic jam estimation value is determined; based on the relative position data between the host vehicle and the other vehicle a relative traffic jam estimation value is determined; based on the traffic jam estimation value and the relative traffic jam estimation value a voting jam value is determined; and the software programs the hardware to perform the steps of the method. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for determining traffic condition comprising:
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a position determining system which periodically determines a position data of a host vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the host vehicle; a receiver which periodically receives position data of at least an other vehicle, wherein the position data includes a time stamp, position, velocity and driving direction of the other vehicle; a memory which stores the position data of the host vehicle and the position data of at least the other vehicle; and programmable hardware and software for programming the hardware, wherein execution of the software causes the hardware to perform a method comprising; calculating a relative position data, wherein the relative position data includes relative velocity and relative driving direction between the host vehicle and the other vehicle; judging the traffic condition based on the position data of the host vehicle, the position data of the other vehicle and the relative position data; determining a traffic jam estimation value based on the position data of the host vehicle; determining a relative traffic jam estimation value based on the relative position data between the host vehicle and the other vehicle; and determining a voting jam value based on the traffic jam estimation value and the relative traffic jam estimation value. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification