Vehicle guidance system using beacon transmissions of destinatio

Details Vehicle guidance system using beacon transmissions of destinatio Vehicle guidance system using beacon transmissions of destinatio

1993-04-27

1996-04-16

Teska, Kevin J.

Boots, shoes, and leggings

36442401, G01C 2100

Patent

active

055089178

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The invention relates to a vehicle and destination guidance system.


BACKGROUND

The vehicle and destination guidance system "Ali-Scout" is known from Bosch Technische Berichte, [Technical Reports], Vol. 8 (1986), Issue 1/2, pages 26 to 31, in which the destination can be entered in the form of coordinates by means of an alphanumeric keyboard and wherein coordinate data taken from a street map can be entered in an internal memory. Previously entered destinations with an abbreviated name can be selected by means of a "step" key through a display scroll method.
Furthermore, a map-supported locating and navigation system "Travelpilot" is known, wherein the entire road system of Germany is stored on a compact disc and is available to the locating and navigation system. However, it has been found that the internal memory of the system needs to be quite extensive, or that a relatively expensive CD device is required if a great many destinations must be stored by their coordinates. Taking into consideration that the memory then needs to be present in practically every vehicle, the result is a very extensive technical outlay with correspondingly high costs.


SUMMARY OF THE INVENTION

In contrast thereto, the vehicle and destination guidance system of the invention has the advantage that the memory requirements in the vehicle can be kept relatively small, because it is needed only for the intermediate storage of the names which were entered or only for defined simple search functions. Because it only contains place names with the coordinates of the centers of these places, its capacity is limited to a size which can be displayed on integrated circuits which today are commercially available. Another advantage can also be seen in that the data stored in the beacon can be adapted continuously to the actual conditions by means of a centrally controlled device. Furthermore, for control purposes, the vehicles passing the beacons can be counted and routed in preset directions.
Of particular advantage in this connection is the use of an RDS-TMC (Radio Data System--Traffic Message Channel) memory which only needs to be slightly changed because place names are already stored in it. Only the supplemental geographic coordinates of a street map need to be stored for these place names. Because of this the vehicle device can be inexpensively manufactured. Advantages also result from the use of the system for control and test purposes which can be automatically performed and which are the result of checks for entry permits and/or fee deductions in connection with parking and tolls.
It is particularly advantageous that the street names of destinations or data regarding street maps with the appropriate coordinates are stored in the beacon memory. This memory always contains up-to-date street data and can be interrogated by any number of vehicles.
A particular advantage is to be seen in that the map display in the near vicinity of the beacon takes place in a detailed manner, so that orientation is made easier for the driver.
Since the transmission of a guidance vector chain is sufficient at a greater distance from the destination, the output of the route to be driven can be designed to be very simple. The output of simple route symbols in particular is possible. A map display in color is particularly advantageous for improving overall clarity.
Because the range of the beacon transmitting/receiving device is relatively short, individual destination guidance in areas without a beacon infrastructure takes place by means of compound locating in a locating and navigation system. The transmission of the position coordinates of an adjacent beacon is particularly helpful for arranging the navigation system or for correcting the coupled positional data. By means of transmitting the coordinates of the location of the beacon, it is possible to determine the position exactly to within a few meters.
An acoustical data output with destination guidance and/or traffic advisories is advantageous in particular for city drivin

REFERENCES:
patent: 4357593 (1982-11-01), Von Tomkewitsch
patent: 4420682 (1983-12-01), Huber
patent: 4914605 (1990-04-01), Loughmiller, Jr. et al.
patent: 5101200 (1992-03-01), Swett
patent: 5101510 (1992-03-01), Duckeck/Bosch
patent: 5187810 (1993-02-01), Yoneyama et al.
patent: 5274560 (1993-12-01), Larue
Bragas & Deuper, "Von ALI zum IVB," Bosch Technische Berichte, vol. 8, No. 1, pp. 26-31, Robert Bosch GmbH, Stuttgart, 1986.
Automotive Electronics Journal, Jan. 29, 1990, p. 19.
Von Tomkewitsch, "Dynamic Route Guidance and Interactive Transport Management with ALI-Scout," IEEE Transactions on Vehicular Technology, vol. 40, No. 1, pp. 45-50, Feb. 1991.
Christopher O'Malley, "Electronics as Your Co-Pilot," Popular Science, Sep. 1991, pp. 66-69.

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