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US 5,313,200 AGranted
Road traffic congestion display system
AssigneeNissan Motor Co., Ltd.
InventorGaku Sone
Life of this patent
Estimating the term…
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.
Claims11
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;
- wherein
- said 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.
5 more elements
A traffic congestion display system comprising:
- 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.
2 more elements
Dependencies are inferred from the claim text.