Distributed Intelligence For Traffic Signal Control
First Claim
1. A traffic control device interface, comprising:
- a memory configured to store a device definition; and
a processor configured to communicate at least a portion of the device definition to an interface output.
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Accused Products
Abstract
Intelligent traffic control devices that are spatially distributed at strategic locations on streets, highways, and intersections communicate bi-directional complex information to control the movement of various users in a safe and efficient manner. The intelligence of the traffic control devices is based on the capability of each device to operate in manners normally associated with computer-based controls. Such actions include the ability to react to complex instructions, perform logical and arithmetical computations, make records of sequences of events, perform self-diagnostic assessments, take reliable and predictable autonomous actions, and communicate information collected from environmental sensors or internal state of operation. Such devices may contain varying degrees of binary coded descriptions that describe device capability and performance characteristics to other traffic control devices that may require access to sensory information and/or control functions.
51 Citations
30 Claims
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1. A traffic control device interface, comprising:
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a memory configured to store a device definition; and a processor configured to communicate at least a portion of the device definition to an interface output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus, comprising:
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a memory configured to retain a traffic control device electronic definition; an output configured to communicate at least a portion of the electronic definition; and a traffic control device configured to process instructions based on the electronic definition. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A traffic control system, comprising:
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a plurality of traffic control devices; a traffic system controller; a network connecting the traffic control devices and the traffic system controller, wherein the traffic system controller and the traffic control devices are configured to exchange multi-bit traffic control parameters via the network. - View Dependent Claims (17, 18)
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19. A traffic control method, comprising:
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providing a plurality of traffic control devices; and selecting an operational state of at least one traffic control device by communicating a multi-bit command to the at least one traffic control device. - View Dependent Claims (20, 21)
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- 22. A traffic signal, comprising red, green, and yellow color fields, wherein at least one of the color fields is configured to selectively display a solid circular color pattern and an arrow.
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25. A traffic control device, comprising:
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a bi-directional communication port configured for communication over a traffic control network; a traffic transducer; and a processor coupled to the traffic transducer and to the bi-directional communication port. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification