Data Collection and Traffic Control Using Multiple Wireless Receivers
First Claim
1. A method, comprising:
- transmitting wireless signals from a plurality of roadside equipment (RSE) devices, including from a first RSE device and from a second RSE device that are located at separated positions of an intersection;
receiving responses by the first RSE device and second RSE device from a wireless device, the responses including a unique identifier corresponding to the wireless device;
determining a signal strength of each of the responses by the first RSE and the second RSE;
transmitting data from the first RSE device and the second RSE device to a control system, the data including the unique identifier, the signal strength of each of the responses, and times that the responses were received;
determining traffic information associated with the wireless device based on the received data.
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Accused Products
Abstract
Methods, systems, and devices for monitoring roadway traffic. A method includes transmitting wireless signals from a plurality of roadside equipment (RSE) devices, including from a first RSE device and from a second RSE device that are located at separated positions of an intersection. The method includes receiving responses by the first RSE device and second RSE device from a wireless device. The responses include a unique identifier corresponding to the wireless device. The method includes determining a signal strength of each of the responses by the first RSE and the second RSE and transmitting data from the first RSE device and the second RSE device to a control system. The data includes the unique identifier, the signal strength of each of the responses, and times that the responses were received. The method includes determining traffic information associated with the wireless device based on the received data.
31 Citations
20 Claims
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1. A method, comprising:
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transmitting wireless signals from a plurality of roadside equipment (RSE) devices, including from a first RSE device and from a second RSE device that are located at separated positions of an intersection; receiving responses by the first RSE device and second RSE device from a wireless device, the responses including a unique identifier corresponding to the wireless device; determining a signal strength of each of the responses by the first RSE and the second RSE; transmitting data from the first RSE device and the second RSE device to a control system, the data including the unique identifier, the signal strength of each of the responses, and times that the responses were received; determining traffic information associated with the wireless device based on the received data. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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providing data communications between a control system and a plurality of roadside equipment (RSE) devices, including at least a first RSE device and from a second RSE device that are located at separated positions of an intersection and geographically separated from the control system; receiving data from the first RSE device and the second RSE device by the control system, the data including a unique identifier for a wireless device in a vehicle, times that responses were received from the wireless device by the first RSE device and the second RSE device, and signal strengths of each of the responses; and determining traffic information associated with the wireless device based on the received data. - View Dependent Claims (7, 8, 9, 10)
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11. A traffic monitoring system, comprising:
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a control system; and a plurality of roadside equipment (RSE) devices located geographically separate from the control system and at separated locations at an intersection, comprising at least a processor and a wireless transceiver, the RSE devices configured to transmit wireless signals and receive corresponding responses from a wireless device, and to send data to the control system corresponding to the responses, signal strengths of each of the response, and times the responses were received, wherein the control system determines traffic information associated with the wireless device based on the received data. - View Dependent Claims (12, 13, 14, 15, 16)
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18. A traffic monitoring system, comprising:
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detecting means for detecting wireless devices traveling on a roadway, the detecting means including a transceiver; analyzing means for analyzing data produced by the detecting means; and traffic control means for controlling a traffic control devices. - View Dependent Claims (19, 20)
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Specification