Obtaining vehicle traffic information using mobile bluetooth detectors
First Claim
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1. A mobile Bluetooth detector located in a moving vehicle, comprising in combination:
- a positioning system that detects a location of the vehicle;
data storage storing machine language instructions for collecting data regarding Bluetooth enabled devices attempting to connect with the mobile Bluetooth detector, wherein the collected data includes;
a Bluetooth log including a first time associated with a first address of a first Bluetooth enabled device and a second time associated with a second address of a second Bluetooth enabled device, anda location log including a first location of the vehicle associated with the first time when a connection attempt of the first Bluetooth enabled device is logged and a second location of the vehicle associated with the second time when a connection attempt of the second Bluetooth enabled device is logged;
a processor that executes the machine language instructions stored in the data storage; and
a communication module for transmitting the data collected from the Bluetooth enabled devices to a remote facility that generates traffic information.
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Abstract
A method and system for obtaining traffic information from mobile Bluetooth detectors is disclosed. A mobile Bluetooth detector is a device located in a moving vehicle that includes Bluetooth and GPS firmware for collecting data from Bluetooth enabled devices. The mobile Bluetooth detector transmits the collected data to a remote facility where the data is processed to generate traffic information. A pair of mobile Bluetooth detectors may be used to collect data for generating ground truth.
167 Citations
18 Claims
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1. A mobile Bluetooth detector located in a moving vehicle, comprising in combination:
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a positioning system that detects a location of the vehicle; data storage storing machine language instructions for collecting data regarding Bluetooth enabled devices attempting to connect with the mobile Bluetooth detector, wherein the collected data includes; a Bluetooth log including a first time associated with a first address of a first Bluetooth enabled device and a second time associated with a second address of a second Bluetooth enabled device, and a location log including a first location of the vehicle associated with the first time when a connection attempt of the first Bluetooth enabled device is logged and a second location of the vehicle associated with the second time when a connection attempt of the second Bluetooth enabled device is logged; a processor that executes the machine language instructions stored in the data storage; and a communication module for transmitting the data collected from the Bluetooth enabled devices to a remote facility that generates traffic information. - View Dependent Claims (2, 3, 4)
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5. A method of obtaining traffic information from a mobile Bluetooth detector, comprising:
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providing a first device in a first vehicle moving in a geographic area and a second device in a second vehicle moving in the geographic area, wherein the first device and the second device have Bluetooth and GPS capabilities; collecting a first log of connection attempts of at least a third device attempting to connect with the first device, wherein the first log includes a first time and first location when and where the third device attempted to connected with the first device; collecting a second log of connection attempts of at least the third device attempting to connect with the second device, wherein the second log includes a second time and second location when and where the third device attempted to connect with the second device; transmitting the first log of connection attempts from the first device to a remote facility that generates traffic information; and transmitting the second log of connection attempts from the second device to a remote facility that generates traffic information. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method of generating traffic information from data collected by mobile Bluetooth detectors, comprising:
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from a first set of devices, receiving data regarding when and where a second set of devices have made connection attempts with the first set of devices, wherein the first set of devices are mobile Bluetooth detectors and the second set of devices are Bluetooth enabled devices; storing the received data including connection attempts and in a log, wherein the second set of devices is traveling in a direction opposite from a direction of the first set of devices on a road, merging the received data by timestamp and MAC address; and map matching the merged data to generate traffic information. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification