Accurate mobile traffic information acquisition with minimal transmission cost and optional V2V extension
First Claim
1. A system, comprising:
- at least one traffic server to receive traffic information reports transmitted from vehicles located on a traffic network serviced by said at least one traffic server, said traffic network being segmented into a plurality of predefined links, each predefined link associated with a priority level, a reporting latency, and an identification code; and
an onboard unit in a vehicle to transmit traffic information reports to said at least one traffic server, said onboard unit configured;
to determine a current location of said vehicle;
based on said current location, to determine on which of a link of said predefined links in said traffic network said vehicle is currently located;
to determine a link identification code that corresponds to said link on which said vehicle is currently located; and
to generate a traffic data packet to be potentially transmitted by said onboard unit to said at least one traffic server,wherein said determined link identification code serves as an indicia of location in said traffic data packet.
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Accused Products
Abstract
A system (and method) includes at least one traffic server to receive traffic information reports transmitted from vehicles located on a traffic network serviced by the at least one traffic server. The traffic network is segmented into a plurality of predefined links, each predefined link associated with a priority level, a reporting latency, and an identification code. An onboard unit in a vehicle transmits traffic information reports to the at least one traffic server. The onboard unit is configured: to determine a current location of the vehicle; based on the current location, to determine on which of a link of the predefined links in the traffic network the vehicle is currently located; to determine a link identification code that corresponds to the link on which the vehicle is currently located; and to generate a traffic data packet to be potentially transmitted by the onboard unit to the at least one traffic server. The determined link identification code serves as indicia of location in the traffic data packet.
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Citations
20 Claims
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1. A system, comprising:
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at least one traffic server to receive traffic information reports transmitted from vehicles located on a traffic network serviced by said at least one traffic server, said traffic network being segmented into a plurality of predefined links, each predefined link associated with a priority level, a reporting latency, and an identification code; and an onboard unit in a vehicle to transmit traffic information reports to said at least one traffic server, said onboard unit configured; to determine a current location of said vehicle; based on said current location, to determine on which of a link of said predefined links in said traffic network said vehicle is currently located; to determine a link identification code that corresponds to said link on which said vehicle is currently located; and to generate a traffic data packet to be potentially transmitted by said onboard unit to said at least one traffic server, wherein said determined link identification code serves as an indicia of location in said traffic data packet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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in an onboard unit installed in a vehicle, determining that said vehicle has entered onto a link of a plurality of network traffic links; determining an identification of said link; determining an entry time and an exit time of said vehicle for said determined link; generating a traffic data report packet including an identification of said link and said entry and exit times; assigning to said traffic data report packet; a potential transmission time for potentially making a transmission of said traffic data report packet; and a probability value assigned to said traffic data report packet as based on a priority of said identified link; and storing said generated traffic data report in a transmission queue along with said assigned potential transmission time and said probability value, wherein said onboard unit stores and maintains said generated traffic data report packet in said transmission queue with other traffic data report packets in a sequence in accordance with potential transmission times of said other traffic data report packets. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. An apparatus, comprising:
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a processor; a transceiver; and at least one non-transitory memory device, wherein at least one said non-transitory memory device stores a set of instructions to permit said apparatus to function as an onboard unit on a vehicle by; determining a current location of a vehicle in which said onboard unit is installed; determining, using said current location, that said vehicle has entered onto a specific network link of a plurality of previously-defined network links of a traffic network and identifying a link identification code corresponding to said specific network link; identifying a time of entry into said specific network link and a time of exit from said specific network link; generating a traffic data report packet including said link identification code and said entry and exit times; assigning a potential transmission time and a probability value to said traffic data report packet, said potential transmission time and said probability value based on a predefined priority of said specific network link in said traffic network; and storing, in a transmission queue, said traffic data report packet along with said assigned potential transmission time and said assigned probability value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification