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US 10,567,251 B2Granted
Accurate mobile traffic information acquisition with minimal transmission cost and optional V2V extension
AssigneeInternational Business Machines Corporation
InventorsYeow Khiang Chia, Shiau Hong Lim, Laura Wynter
Life of this patent
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Abstract
A system, includes 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.
Claims20
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 report a current location of said vehicle to said at least one traffic server by reporting on which predefined link the vehicle is currently located.
A method, comprising:
- 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;
- and
- generating a traffic data report packet including an identification of said link and said entry and exit times.
2 more elements
An apparatus, comprising:
- 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;
- and
- generating a traffic data report packet including said link identification code and said entry and exit times.
7 more elements
Dependencies are inferred from the claim text.