Traffic surveillance system
First Claim
Patent Images
1. A traffic surveillance system for surveying conditions of traffic at an intersection, comprising:
- at least one set of traffic signal light apparatus positioned at said intersection, wherein said traffic signal light apparatus comprises;
one set of traffic signal lights, each light being a different color, and a first controller for controlling said one set of traffic signal lights;
a housing in which said one traffic signal lights are installed;
a television camera installed in said housing and set so as to pick up a video image of said intersection;
a monitor, coupled to said television camera, for displaying said video image of said intersection; and
a second controller, coupled to said first controller, said television camera and said monitor, for controlling said first controller, said television camera and said monitor so that said video image of said intersection from said television camera and lighting information of each light of said one set of traffic signal lights from said first controller are superimposed and displayed on said monitor.
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Abstract
A traffic surveillance system for surveillance conditions of traffic at a traffic strategic point such as an intersection. The surveillance system has at least one traffic signal light having a housing which contains one set of traffic lights, installed at the traffic strategic point, a television camera adapted to image-pick up the traffic strategic point, and a television monitor for displaying a video signal from the camera. Lighting information of the traffic signal light and the video signal from the television camera are synthesized and displayed on the same screen of the television monitor.
119 Citations
13 Claims
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1. A traffic surveillance system for surveying conditions of traffic at an intersection, comprising:
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at least one set of traffic signal light apparatus positioned at said intersection, wherein said traffic signal light apparatus comprises;
one set of traffic signal lights, each light being a different color, and a first controller for controlling said one set of traffic signal lights;
a housing in which said one traffic signal lights are installed;
a television camera installed in said housing and set so as to pick up a video image of said intersection;
a monitor, coupled to said television camera, for displaying said video image of said intersection; and
a second controller, coupled to said first controller, said television camera and said monitor, for controlling said first controller, said television camera and said monitor so that said video image of said intersection from said television camera and lighting information of each light of said one set of traffic signal lights from said first controller are superimposed and displayed on said monitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13)
a video recording unit for recording said video image of said intersection from said television camera and lighting information in accordance with said one set of traffic signal lights from said first controller.
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5. A traffic surveillance system according to claim 1, further comprising:
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a sensor for detecting abnormality inside said intersection, wherein said second controller controls said video recording unit based on an output of said sensor in response to an occurrence of said abnormality inside said intersection.
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6. A traffic surveillance system according to claim 2, further comprising:
a temporary memory unit, coupled with said video recording unit, for temporarily recording said video image from said television camera and lighting information from said first controller.
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7. A traffic surveillance system according to claim 3, wherein the output of said sensor is superimposed on said video signal and recorded on said video recording unit.
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9. A traffic surveillance system according to claim 5, wherein a plurality of said monitors are so arranged that images displayed on said monitors indicate a map of said intersection.
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10. A traffic surveillance system according to claim 5, wherein a plurality of television cameras are positioned at mutually different positions of said intersection so as to pick up said video images of said intersection in different direction.
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11. A traffic surveillance system according to claim 5, wherein a plurality of television cameras are positioned at a center of said intersection and said television cameras pick up said video images of said intersection in different directions.
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12. A traffic surveillance system according to claim 6, wherein a plurality of said monitors are constructed by one monitor and said vide images from a plurality of said television cameras are displayed on the screen of said one monitor as the map of said intersection.
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13. A traffic surveillance system according to claim 1, wherein said second controller is connected with said traffic signal light apparatus and said television cameras through a network.
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8. A traffic surveillance for surveying conditions of traffic at an intersection, comprising:
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at least one set of traffic signal light apparatus positioned at said intersection, wherein said traffic signal apparatus comprises;
one set of traffic signal lights each light being a different color, and a first controller for controlling said one set of traffic signal lights;
a housing in which said one set of traffic signal lights are installed;
a plurality of television cameras installed at predetermined positions of said intersection and set so as to pick up video images of said intersection in different directions;
a plurality of monitors, which are coupled to said television cameras, respectively, for displaying said video images of said intersection; and
a second controller, coupled to said first controller, said television cameras and said monitors, for controlling said first controller, said television cameras and said monitors so that said video images of said intersection from said television cameras and lighting information of each light of said one set of traffic signal lights from said first controller are superimposed and displayed on said monitors.
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Specification