Traffic monitoring system
First Claim
1. A method comprising:
- receiving information associated with traffic conditions on a route from a starting location to a destination location;
determining a primary route from the starting location to the destination location;
determining an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles;
identifying one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and
displaying the primary route including indicia of the one or more identified delayed portions.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and techniques to determine a primary route between two locations by monitor vehicle speed using transmitting wireless devices. In general, in one implementation, the technique includes: receiving information associated with traffic conditions on a route from a starting location to a destination location; determining a primary route from the starting location to the destination location; determining an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles; identifying one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and displaying the primary route including indicia of the one or more identified delayed portions. The wireless device may include a cellular phone and a personal digital assistant.
99 Citations
52 Claims
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1. A method comprising:
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receiving information associated with traffic conditions on a route from a starting location to a destination location;
determining a primary route from the starting location to the destination location;
determining an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles;
identifying one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and
displaying the primary route including indicia of the one or more identified delayed portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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transmitting a starting location and a destination location to a server;
receiving a primary route from the starting location to the destination location including indicia at each portion of the route at which vehicle speed in each delayed portion is less than a respective expected value and wherein the vehicle speed is determined from signals received from wireless transmitters transmitting from vehicles traveling along the primary route; and
displaying the primary route and indicia. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method comprising:
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determining a first location of a wireless transmitter transmitting from a vehicle traveling along a route relative to a first receiver at a first time based on a first signal received from the transmitter;
determining a second location of the transmitter relative to the first receiver at a second time based on a second signal received from the transmitter;
calculating a distance between the first and second locations; and
calculating a speed of the transmitter. - View Dependent Claims (22)
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23. A method comprising:
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determining an initial time when a signal from each of a plurality of transmitters transmitting from vehicles traveling along a route is received by a first receiver having a known reception area;
determining a final time when each transmitter is no longer received by the first receiver;
calculating a time interval for each transmitter to travel through the first reception area;
calculating an average time for all transmitters to travel through the reception area; and
calculating an average speed of the transmitters traveling through the first reception area. - View Dependent Claims (24)
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25. A method comprising:
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associating each of a plurality of transmitting devices transmitting from vehicles traveling along a route with a time when a signal from each transmitting device is received by each of a plurality of receivers in a predetermined time period;
eliminating the associations where there is no corresponding time associated with each receiver;
calculating an interval time from an earliest time to a latest time associated with each transmitter;
calculating an average interval time, TiAv, for all transmitters; and
calculating an average speed, SPG1, of the transmitters as;
wherein L is a distance of a transmitter location from a nearest receiver when an earliest signal is received by one of the receivers to a transmitter location when from a nearest receiver when a latest signal is received from the transmitter. - View Dependent Claims (26)
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27. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:
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receiving information associated with traffic conditions on a route from a starting location to a destination location;
determining a primary route from the starting location to the destination location;
determining an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles;
identifying one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and
displaying the primary route including indicia of the one or more identified delayed portions. - View Dependent Claims (28, 29, 30)
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31. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:
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transmitting a starting location and a destination location to a server;
receiving a primary route from the starting location to the destination location including indicia at each portion of the route at which vehicle speed in each delayed portion is less than a respective expected value and wherein the vehicle speed is determined from signals received from wireless transmitters transmitting from vehicles traveling along the primary route; and
displaying the primary route and indicia. - View Dependent Claims (32, 33)
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34. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:
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determining a first location of a wireless transmitter transmitting from a vehicle traveling along a route relative to a first receiver at a first time based on a first signal received from the transmitter;
determining a second location of the transmitter relative to the first receiver at a second time based on a second signal received from the transmitter;
calculating a distance between the first and second locations; and
calculating a speed of the transmitter. - View Dependent Claims (35)
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36. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:
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determining an initial time when a signal from each of a plurality of transmitters transmitting from vehicles traveling along a route is received by a first receiver having a known reception area;
determining a final time when each transmitter is no longer received by the first receiver;
calculating a time interval for each transmitter to travel through the first reception area;
calculating an average time for all transmitters to travel through the reception area; and
calculating an average speed of the transmitters traveling through the first reception area. - View Dependent Claims (37)
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38. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:
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associating each of a plurality of transmitting devices transmitting from vehicles traveling along a route with a time when a signal from each transmitting device is received by each of a plurality of receivers in a predetermined time period;
eliminating the associations where there is no corresponding time associated with each receiver;
calculating an interval time from an earliest time to a latest time associated with each transmitter;
calculating an average interval time, TiAv, for all transmitters; and
calculating an average speed, SPG1, of the transmitters as;
wherein L is a distance of a transmitter location from a nearest receiver when an earliest signal is received by one of the receivers to a transmitter location when from a nearest receiver when a latest signal is received from the transmitter. - View Dependent Claims (39)
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40. A system comprising one or more computers configured to:
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receive information associated with traffic conditions on a route from a starting location to a destination location;
determine a primary route from the starting location to the destination location;
determine an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles;
identify one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and
display the primary route including indicia of the one or more identified delayed portions. - View Dependent Claims (41, 42, 43)
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44. A system comprising one or more computers configured to:
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transmit a starting location and a destination location to a server;
receive a primary route from the starting location to the destination location including indicia at each portion of the route at which vehicle speed in each delayed portion is less than a respective expected value and wherein the vehicle speed is determined from signals received from wireless transmitters transmitting from vehicles traveling along the primary route; and
display the primary route and indicia. - View Dependent Claims (45, 46)
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47. A system comprising one or more computers configured to:
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determine a first location of a wireless transmitter transmitting from a vehicle traveling along a route relative to a first receiver at a first time based on a first signal received from the transmitter;
determine a second location of the transmitter relative to the first receiver at a second time based on a second signal received from the transmitter;
calculate a distance between the first and second locations; and
calculate a speed of the transmitter. - View Dependent Claims (48)
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49. A system comprising one or more computers configured to:
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determine an initial time when a signal from each of a plurality of transmitters transmitting from vehicles traveling along a route is received by a first receiver having a known reception area;
determine a final time when each transmitter is no longer received by the first receiver;
calculate a time interval for each transmitter to travel through the first reception area;
calculate an average time for all transmitters to travel through the reception area; and
calculate an average speed of the transmitters traveling through the first reception area. - View Dependent Claims (50)
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51. A system comprising one or more computers configured to:
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associate each of a plurality of transmitting devices transmitting from vehicles traveling along a route with a time when a signal from each transmitting device is received by each of a plurality of receivers in a predetermined time period;
eliminate the associations where there is no corresponding time associated with each receiver;
calculate an interval time from an earliest time to a latest time associated with each transmitter;
calculate an average interval time, TiAv, for all transmitters; and
calculate an average speed, SPG1, of the transmitters as;
wherein L is a distance of a transmitter location from a nearest receiver when an earliest signal is received by one of the receivers to a transmitter location when from a nearest receiver when a latest signal is received from the transmitter. - View Dependent Claims (52)
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Specification