Traffic signal control system, design method and special equipment
US8717195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Feb 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/07
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A traffic signal control method comprises confirming the shortest green light interval; confirming the conflict area of the different traffic flow and the key conflict point position according to the engineering design for road canalization; confirming the longest clear distance si(m) of the traffic tail unit of green light i and the shortest entry distance sj(m) of the traffic head unit of green light j in conflict with green light i; calculating the longest clear time Max{ti} of the traffic tail unit of green light i and the shortest entry time Min{tj} of the traffic head unit of green light j; calculating the shortest green light interval Iij=A+Max{ti}−Min{tj}; confirming the control scheme for the crossing according to the shortest green light interval and sending the control instruction to the traffic signal display device for displaying in real time according to the control scheme. A traffic signal control system and special equipment are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.