Roadside-based communication system and method
First Claim
Patent Images
1. A roadside system comprising:
- a mobile unit including a transmitter transmitting a wireless signal;
a roadside control unit controlling one or more traffic control devices coupled to an intersection, the roadside unit further receiving the wireless signal, converting the wireless signal into a corresponding digital stream, processing the digital stream and identifying a destination, and forwarding the digital stream to the identified destination; and
a command center receiving the digital stream and generating an output in response.
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Abstract
A roadside-based communication system providing backup communication between emergency mobile units and emergency command centers. In the event of failure of a primary communication, the mobile units transmit wireless messages to nearby roadside controllers that may take the form of intersection controllers. The intersection controllers receive the wireless messages, convert the messages into standard digital streams, and transmit the digital streams along a citywide network to a destination intersection or command center.
76 Citations
16 Claims
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1. A roadside system comprising:
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a mobile unit including a transmitter transmitting a wireless signal; a roadside control unit controlling one or more traffic control devices coupled to an intersection, the roadside unit further receiving the wireless signal, converting the wireless signal into a corresponding digital stream, processing the digital stream and identifying a destination, and forwarding the digital stream to the identified destination; and a command center receiving the digital stream and generating an output in response. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A roadside control unit coupled between a mobile unit and a command center, the roadside control unit being associated with an intersection including traffic signals, the roadside control unit comprising:
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a transceiver wirelessly communicating with the mobile unit; a processor; and a memory operably coupled to the processor and storing program instructions therein, the processor being operable to execute the program instructions, the program instructions including; controlling the traffic signals based on predetermined conditions; receiving a wireless signal transmitted by the mobile unit; converting the wireless signal into a corresponding digital stream; processing the digital stream and identifying a destination; and forwarding the digital stream to the command center based on the identified destination. - View Dependent Claims (8, 9, 10, 11)
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12. A method for providing backup communication via a roadside control unit coupled between a mobile unit and a command center, the roadside control unit being associated with an intersection including traffic signals, the method comprising:
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receiving by the roadside control unit a wireless signal transmitted by the mobile unit; converting by the roadside control unit the wireless signal into a corresponding digital stream; processing by roadside control unit the digital stream and identifying a destination; and forwarding by the roadside control unit the digital stream to the command center based on the identified destination, wherein, the roadside control provides the backup communication in response to a detection of unavailability of primary communication. - View Dependent Claims (13, 14, 15, 16)
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Specification