US 6,151,550 AGranted

Traffic information providing system

AssigneeMitsubishi Denki Kabushiki Kaisha

InventorMitsuo Nakatani

Life of this patent

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Abstract

To obtain a traffic information providing system which can display information of a forward section of an on-road radio transmission/reception device even if there is no oncoming vehicle. The on-vehicle radio transmission/reception device has a moving time calculation device for calculating moving times of traveling sections which are arbitrarily divided, a memory for storing the moving time calculated by the moving time calculation device, and a transmission device for transmitting the moving time; and the on-road radio reception device has a reception device for receiving a moving time from the moving time calculation device, a recognition unit for recognizing a traffic situation from the moving time to form traffic situation data, a data communication device for transmitting/receiving the traffic situation data between the plurality of on-road radio transmission/reception devices, and a display device for displaying the traffic situation data obtained by the data communication device.

Claims5

Dependent claims

A traffic information providing system comprising an on-vehicle radio transmission/reception device mounted on a vehicle and a plurality of on-road radio transmission/reception devices installed on roads,

wherein said on-vehicle radio transmission/reception device has:
moving time calculation means for calculating moving times of traveling sections which are arbitrarily divided;
moving time storage means for storing the moving time calculated by said moving time calculation means;
and
transmission means for transmitting the moving time, and
said on-road radio transmission/reception device has:
reception means for receiving said moving time from said on-vehicle radio transmission/reception device;
traffic situation recognition means for comparing said moving time with a preset reference time to form traffic situation data;
data communication means for transmitting/receiving said traffic situation data between said plurality of on-road radio transmission/reception devices;
and
display means for displaying said traffic situation data obtained by said data communication means.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/235,405Filed 22 Jan 1999
Priority: JP 10-1943419 Jul 1998
Granted: 21 Nov 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G08G 1/096758
Where a selection of the information might take place: where no selection takes place on the transmitted or the received information
G08G 1/0965
Having an indicator mounted inside the vehicle, e.g. giving voice messages: responding to signals from another vehicle, e.g. emergency vehicle
G08G 1/096716
Where the received information might be used to generate an automatic action on the vehicle control: where the received information does not…
G08G 1/096783
Where the system is characterised by the origin of the information transmission: where the origin of the information is a roadside individual element