Road traffic congestion display system
First Claim
Patent Images
1. A traffic congestion display system comprising:
- a communicating means for receiving radio signals and for transmitting traffic information; and
a displaying means for displaying a road map image on a screen, and a directional congestion mark indicating a direction of a road congestion in a road section on said road map image;
whereinsaid communicating means and said displaying means are both mounted on a vehicle,said displaying means comprises a display unit comprising said screen, and an image processing means for controlling said display unit to display said road map image and said directional congestion mark which indicates a position of a congested road section and a congested traffic direction which is one of up and down directions in said congested road section, said up and down directions being opposite traffic directions along said congested road section,said direction congestion mark comprises at least one arrow and further indicates a length of a road traffic congestion with the number of said at least one arrow, andwhen the number of said at least one arrow is greater than one, said directional congestion mark comprises a plurality of the arrows which are arranged in a line segment at regular intervals and all directed to one end of said line segment.
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Abstract
A display system mounted on a vehicle is designed to display a road map image around the vehicle with one or more directional congestion marks each indicating the position and direction of a congested traffic by receiving traffic information by radio communication. The directional congestion mark is in the form of an arrow or a series of arrows. Therefore, the driver can readily perceive the direction of a congested traffic.
69 Citations
11 Claims
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1. A traffic congestion display system comprising:
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a communicating means for receiving radio signals and for transmitting traffic information; and a displaying means for displaying a road map image on a screen, and a directional congestion mark indicating a direction of a road congestion in a road section on said road map image;
whereinsaid communicating means and said displaying means are both mounted on a vehicle, said displaying means comprises a display unit comprising said screen, and an image processing means for controlling said display unit to display said road map image and said directional congestion mark which indicates a position of a congested road section and a congested traffic direction which is one of up and down directions in said congested road section, said up and down directions being opposite traffic directions along said congested road section, said direction congestion mark comprises at least one arrow and further indicates a length of a road traffic congestion with the number of said at least one arrow, and when the number of said at least one arrow is greater than one, said directional congestion mark comprises a plurality of the arrows which are arranged in a line segment at regular intervals and all directed to one end of said line segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A traffic congestion display system comprising:
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a communicating means for receiving radio signals for transmitting traffic information; and a displaying means for displaying a road map image on a screen, and a directional congestion mark indicating a direction of a road congestion in a road section on said road map image; wherein said communicating means and said displaying means are both mounted on a vehicle, and said displaying means comprises a display unit comprising said screen, and an image processing means for controlling said display unit to display said road map image and said direction congestion mark which indicates a position of a congested road section and a congested traffic direction which is one of up and down directions in said congested road section, said up and down directions being opposite traffic directions along said congested road section; said image processing means including a means for producing two of said directional marks a first one of which comprises a plurality of arrows in a first direction indicating a traffic congestion in said first direction in a road section and a second one of which comprises a plurality of arrows in a second direction indicating a traffic congestion in said second direction opposite to said first direction in said road section, said arrows in said first and second directions being arranged alternately along a line extending along said road section.
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Specification