Method and system for wireless signaling of vehicular traffic
First Claim
Patent Images
1. A method for wireless communication of a traffic signal over a network, the method comprising:
- receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal;
decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal;
determining if the message is forwardable from the first vehicle to another one or more vehicles on the network, the forwardable determination being made by using at least one of the plurality of fields;
when the message is determined to be forwardable;
modifying at least one of the plurality of fields to form a modified message;
encoding the modified message to form a modified encoded message; and
forwarding the modified encoded message to a second of the plurality of vehicles, the second vehicle approaching the traffic signal; and
discarding the message when the message is determined to be non-forwardable.
1 Assignment
0 Petitions
Accused Products
Abstract
A method, a system, and an apparatus are provided for wireless communication of a traffic signal over a network. A message comprising data related to the traffic signal is received. Thereafter, the forwardability of the message is detemined. If forwardable, the message is forwarded. The validity of the message is checked and if found to be valid, information in the data is communicated to a vehicle controller. The message is discarded, if it is found to be invalid.
-
Citations
25 Claims
-
1. A method for wireless communication of a traffic signal over a network, the method comprising:
-
receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal; determining if the message is forwardable from the first vehicle to another one or more vehicles on the network, the forwardable determination being made by using at least one of the plurality of fields; when the message is determined to be forwardable; modifying at least one of the plurality of fields to form a modified message; encoding the modified message to form a modified encoded message; and forwarding the modified encoded message to a second of the plurality of vehicles, the second vehicle approaching the traffic signal; and discarding the message when the message is determined to be non-forwardable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for wireless communication of a traffic signal over a network, the method comprising:
-
receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal; determining a forwardability of the message from the first vehicle to another one or more vehicles on the network, the forwardability determination being made by using at least one of the plurality of fields; encoding and forwarding the message to a second of the plurality of vehicles when the message is determined to be forwardable, the second vehicle approaching the traffic signal; discarding the message when the message is determined to be non-forwardable; when the message is determined to be valid, communicating information on a type, a status, and a positioning of the traffic signal to a vehicle controller; and discarding the message when the message is determined to be invalid.
-
-
18. A system for wireless communication of a traffic signal over a network, the system comprising:
-
a vehicle transceiver unit (VTU), the VTU receiving an encoded message in a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; a forwarding-control unit for determining when the message is forwardable from the first vehicle to another one or more vehicles on the network, the forwardable determination being made by using at least one of a plurality of fields derived from the encoded message; and a forwarding unit, wherein the forwarding unit forwards the message to a second of the plurality of vehicles when the message is determined to be forwardable, the second vehicle approaching the traffic signal, and wherein the message is discarded when the message is determined to be non-forwardable. - View Dependent Claims (19, 20, 21, 22)
-
-
23. A system for wireless communication of a traffic signal over a network, the system comprising:
-
means for receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; means for decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal; means for determining the forwardability of the message from the first vehicle to another one or more vehicles on the network, the forwardability determination being made by using at least one of the plurality of fields; means for forwarding the message to a second of the plurality of vehicles when the message is determined to be forwardable, the second vehicle approaching the traffic signal; and means for discarding the message when the message is determined to be non-forwardable.
-
-
24. An apparatus for wireless communication of a traffic signal over a network, the apparatus comprising:
-
a processor for executing instructions, the processor coupled to a voice/display unit; and a computer-readable storage medium including instructions encoded therein, the instructions being executable by the processor, the instructions comprising; one or more instructions for receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; one or more instructions for decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal; one or more instructions for determining the forwardability of the message from the first vehicle to another one or more vehicles on the network, the forwardability determination being made by using at least one of the plurality of fields; one or more instructions for modifying at least one of the plurality of fields when the message is determined to be forwardable; one or more instructions for encoding the modified message when the message is determined to be forwardable; one or more instructions for forwarding the modified encoded message to a second of the plurality of vehicles when the message is determined to be forwardable, the second vehicle approaching the traffic signal; and one or more instructions for discarding the message when the message is determined to be non-forwardable.
-
-
25. A computer-readable storage medium including instructions encoded therein for wireless communication of a traffic signal over a network, the instructions being executable by a computer processor, the computer-readable storage medium comprising:
-
one or more instructions for receiving an encoded message in a vehicle transceiver unit (VTU) of a first of a plurality of vehicles on the network, wherein the encoded message includes data related to the traffic signal; one or more instructions for decoding the encoded message in the VTU of the first vehicle to form a message having a plurality of fields of the data related to the traffic signal; one or more instructions for determining the forwardability of the message from the first vehicle to another one or more vehicles on the network, the forwardability determination being made by using at least one of the plurality of fields; one or more instructions for modifying at least one of the plurality of fields when the message is determined to be forwardable; one or more instructions for encoding the modified message when the message is determined to be forwardable; one or more instructions for forwarding the modified encoded message to a second of the plurality of vehicles when the message is determined to be forwardable, the second vehicle approaching the traffic signal; and one or more instructions for discarding the message when the message is determined to be non-forwardable.
-
Specification