H - Electricity – 04 – N
Patent
H - Electricity
04
N
354/15, 350/31
H04N 7/18 (2006.01) G08G 1/04 (2006.01) G08G 1/16 (2006.01)
Patent
CA 2016088
ABSTRACT OF THE DISCLOSURE Monitoring apparatus for monitoring traffic flow in a tunnel, comprising a plurality of cameras each connected to a camera controller. Each camera controller includes an image memory for periodically storing still images from the camera associated therewith. A plurality of incident detectors are associated with each camera. The incident detectors detest the passage of vehicles and determine whether or not a traffic incident, eg congestion or an accident, has occurred in accordance with an algorithm. When an incident has occurred an incident detection signal is generated which is communicated to the camera controllers. The image memory of the relevant camera controller is responsive to the detection signal to identify and freeze a plurality of images prior to the incident which are then passed to the central controller, so that the circumstances leading up to the incident can be reviewed. Figure 2
Dalgleish Michael
Fine David
Jones John
Moreton Bob
Watkins Andrew
Dalgleish Michael
Fine David
Jones John
Marks & Clerk
Moreton Bob
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