WIRELESS INTERNET-PROTOCOL-BASED TRAFFIC SIGNAL LIGHT MANAGEMENT
First Claim
1. A system, comprising:
- a master controller;
a plurality of wireless nodes dispersed in a geographic area, the plurality of wireless nodes communicatively coupled to the master controller; and
a plurality of traffic signal lights dispersed in the geographic area, the traffic signal lights communicatively coupled to the master controller via the plurality of wireless nodes, wherein each wireless node in the plurality of wireless nodes is associated with a distinct Internet protocol address, wherein a wireless communication link provides Internet protocol based communication between the plurality of wireless nodes and the master controller, wherein the plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from the master controller via the wireless communication link, wherein the control data packets comprise one of the distinct Internet protocol addresses and operational instructions for the at least one traffic signal light communicatively coupled to the wireless node, wherein each traffic signal light is responsive to the operational instructions in the control data packets addressed to the distinct Internet protocol address.
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Accused Products
Abstract
A system including a master controller, a plurality of wireless nodes dispersed in a geographic area and a plurality of traffic signal lights dispersed in the geographic area. The traffic signal lights are communicatively coupled to the master controller via the plurality of wireless nodes. Each wireless node in the plurality of wireless nodes is associated with a distinct Internet protocol address and a wireless communication link provides Internet protocol based communication between the plurality of wireless nodes and the master controller. The plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from the master controller via the wireless communication link. The control data packets comprise the distinct Internet protocol address and operational instructions for at least one traffic signal light communicatively coupled to the wireless node and each traffic signal light is responsive to the operational instructions in the control data packets.
88 Citations
40 Claims
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1. A system, comprising:
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a master controller; a plurality of wireless nodes dispersed in a geographic area, the plurality of wireless nodes communicatively coupled to the master controller; and a plurality of traffic signal lights dispersed in the geographic area, the traffic signal lights communicatively coupled to the master controller via the plurality of wireless nodes, wherein each wireless node in the plurality of wireless nodes is associated with a distinct Internet protocol address, wherein a wireless communication link provides Internet protocol based communication between the plurality of wireless nodes and the master controller, wherein the plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from the master controller via the wireless communication link, wherein the control data packets comprise one of the distinct Internet protocol addresses and operational instructions for the at least one traffic signal light communicatively coupled to the wireless node, wherein each traffic signal light is responsive to the operational instructions in the control data packets addressed to the distinct Internet protocol address. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of controlling a plurality of traffic signal lights, the method comprising:
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generating an operational instruction for a selected traffic signal light at a master controller; determining the Internet protocol address for a wireless node associated with the selected traffic signal light; generating a data packet for the selected traffic signal light based on the Internet protocol address and the generated operational instruction; and wirelessly transmitting the data packet from the master controller to the wireless node associated with the selected traffic signal light over an IP-based wireless communication link. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of controlling a plurality of traffic signal lights, the method comprising:
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exchanging information among a plurality of wireless nodes, wherein each of the plurality of wireless nodes is associated with a distinct Internet protocol address and at least one of the traffic signal lights; and sharing control of the traffic signal lights associated with the plurality of wireless nodes among the plurality of wireless nodes based on the exchanged information and based on the Internet protocol addresses. - View Dependent Claims (29, 30, 31, 32)
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33. A system, comprising:
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a plurality of wireless nodes dispersed in a geographic area, each wireless node in the plurality of wireless nodes associated with a distinct Internet protocol address; and a plurality of traffic signal lights dispersed in the geographic area, the traffic signal lights communicatively coupled to the plurality of wireless nodes, wherein a wireless communication link provides Internet protocol based communication among the plurality of wireless nodes, wherein each of the plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from others of the plurality of wireless nodes via the wireless communication link, wherein the control data packets comprise one of the distinct Internet protocol addresses and operational instructions for the at least one traffic signal light communicatively coupled to the wireless node, wherein each traffic signal light is responsive to the operational instructions in the control data packets addressed to the distinct Internet protocol address. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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Specification