Back to results
US 11,145,200 B2Granted
System and method for vehicle-actuated traffic control
AssigneeCarnegie Mellon University
InventorsOzan K. Tonguz, Rusheng Zhang
Life of this patent
Estimating the term…
Abstract
Systems, methods, algorithms, and software for DSRC-actuated traffic control are presented. The invention leverages the presence of DSRC radios in vehicles and gives priority (by displaying green light) to approaches (roads) that include DSRC-equipped vehicles.
Claims20
A method comprising:
- receiving, at an intersection of a first road and a second road, a first wireless signal transmitted by a first vehicle;
- determining, based on the first wireless signal, that the first vehicle is approaching the intersection on the first road;
- determining that a first traffic signal controlling traffic on the first road is red and a second traffic signal controlling traffic on the second road is green;
- determining that no wireless signals have been received from vehicles approaching the intersection on the second road;
- determining that the second traffic signal has been green for a minimum time;
- and
- switching the first traffic signal to green and the second traffic signal to red.
4 more elements
A system comprising:
- one or more wireless receivers located at an intersection of a first road and a second road, each wireless receiver having an antenna connected thereto to receive wireless signals from vehicles approaching the intersection on the first road or the second road;
- and
- a logic controller, connected to the plurality of wireless receivers, the logic controller implementing the functions of:
- receiving, at the intersection, a first wireless signal transmitted by a first vehicle;
- determining, based on the first wireless signal, that the first vehicle is approaching the intersection on the first road;
- determining that a first traffic signal controlling traffic on the first road is red and a second traffic signal controlling traffic on the second road is green;
- determining that no wireless signals have been received from vehicles approaching the intersection on the second road;
- determining that the second traffic signal has been green for a minimum time;
- and
- switching the first traffic signal to green and the second traffic signal to red.
7 more elements
An apparatus comprising:
- one or more DSRC-compatible wireless receivers;
- and
- a logic board comprising:
- a processor;
- and
- a non-transitory, computer-readable storage medium storing logic that, when executed by the processor, causes the processor to perform the functions of:
- receiving, at an intersection of a first road and a second road, a wireless signal transmitted by a first vehicle;
- determining, based on the first wireless signal, that the first vehicle is approaching the intersection on the first road;
- determining that a first traffic signal controlling traffic on the first road is red and a second traffic signal controlling traffic on the second road is green;
- determining that no wireless signals have been received from vehicles approaching the intersection on the second road;
- determining that the second traffic signal has been green for a minimum time;
- and
- switching the first traffic signal to green and the second traffic signal to red.
10 more elements
Dependencies are inferred from the claim text.