JPS61190697A - Optimum running course indicating system for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention provides an optimal travel route instruction method for a vehicle that uses a car telephone system to determine and instruct the optimal route to a destination for a vehicle traveling on a general road. It is related to.

[Conventional technology]

Conventionally, for vehicles traveling on general roads, the optimal route to the destination has been determined by the vehicle driver from a road map or corrected using information from the radio.

[Problem that the invention seeks to solve]

With the conventional method of determining the optimal driving route described above, it is difficult to select the optimal route, and there is a possibility of choosing the wrong route.
Depends on the ability of the vehicle driver.

Moreover, there are problems such as it may be difficult to use the latest road information and obtain necessary road congestion information.

[Failure to solve the problem]

The optimum driving route instruction method for a vehicle according to the present invention uses a car telephone system using a small radio zone method to determine the driving position of the vehicle, and then instructs the vehicle driver about the optimal route to the destination. It is something.

[For production]

In this invention, the optimal route to the destination can be simply and reliably instructed to the vehicle driver even while the vehicle is running, so that the vehicle can travel along the optimal route without fail.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the optimum traveling route instruction method for a vehicle according to the present invention. In the figure, 1 is a vehicle equipped with a mobile device (not shown), 211~2jl~2jt~
2jm to 21a1 are wireless base stations connected via radio channels 3a to 3e, respectively; 4a to 4n are car telephone exchanges connected to relay lines 5a to 5e, respectively; and 6 is a dedicated line or public telephone. A computer in a computer center that is connected via the lines 7a to 7c and determines the position of the vehicle 1 from the transmitted S/N and electric field strength of the vehicle 1, determines the optimal route to the destination, and outputs it. be.

Next, the operation of the vehicle optimum travel route instruction system having the above configuration will be explained. First, the driver of the vehicle 1 notifies the computer 6 of the destination via, for example, the radio channel 3c - the radio base station 2jL - the relay circuit R5c - the mobile telephone exchange office - the private line or the public telephone line 7b, and then informs the computer 6 of the destination. Request use of route instructions. Therefore, according to this request, the computer 6 connects the dedicated line or the public telephone line 7a=7cm.
The mobile telephone exchanges 4a to 4 are instructed to track the vehicle 1 requested by the radio base stations 211 to 2kn via the relay lines 5a to 5e. The radio base stations 211 to 2kn use the radio channels 3a to 3e at regular intervals to measure the S/N and electric field strength for the requested vehicle 1, and transmit the measurement results to the relay lines 5a to 5e to the vehicle. telephone exchange 4
A to 4 are notified to the computer 6 via a dedicated line or public telephone lines 7a to 7c. Therefore, the computer 6 performs calculations based on the input measurement data, determines the requested position of the vehicle 1, and determines or corrects the optimal route to the destination. When the computer 6 detects that the requested traveling position of the vehicle 1 approaches a point where an operation such as a right turn or left turn is required, the computer 6 determines the details of the operation such as a right turn or left turn and a mark to start the operation. In order to instruct the driver about the target object by voice, these instruction signals are sent to the vehicle 1 via a dedicated line or public telephone line 7b, a car telephone exchange, a relay line 5c, and a wireless base station 2jt. After the vehicle 1 arrives at the destination, or when the use of the optimal route instruction is interrupted, the driver of the vehicle 1 connects the wireless channel 3c - the radio base station 2jt - the relay line 5c - the mobile telephone exchange's exclusive line or public phone line 7b
A request to cancel the use of the optimal route instruction is output to the computer 6 via the . Therefore, in order to request cancellation of the tracking of the vehicle 1, the computer 6 receives this and sends a cancellation instruction signal to the dedicated lines or public telephone lines 7a to 7c, the car telephone exchanges 4a to 4, the relay lines 5a to 5e, and the radio base station. 2.
Output every 1 to 2 hours. Therefore, these radio base stations 211 to 2kn stop tracking the vehicle 1 and return.

〔Effect of the invention〕

As explained in detail above, according to the method for instructing the optimum travel route for a vehicle according to the present invention, by determining the position of the vehicle using the car telephone system, it is possible to instruct the travel route in a timely manner. In addition, it is possible to indicate a target object that will serve as a landmark for starting operations such as turning right or left, so that the user can drive on the optimal route without fail. Furthermore, by determining the optimal route at a computer center, it is possible to take into account road congestion based on the latest road information.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the optimum traveling route instruction method for a vehicle according to the present invention. 1@...Φ vehicle, 211-2 11... wireless base station, 3a-38... wireless channel, 4a-4nφ...
・Car telephone exchange, 5a-5e...Relay line, 6
...Computer, 7a-7C...Dedicated line or public telephone line.

Claims (1)

[Claims] The S/N and electric field strength of a designated vehicle traveling on a general road are measured by multiple wireless base stations of a car phone system using the small wireless zone method.
N and electric field strength are transmitted to the computer center via the mobile telephone exchange, and the computer center determines the position of the vehicle from this S/N and electric field strength, and determines the destination according to the vehicle's traveling position. An optimal travel route instruction method for a vehicle, characterized by instructing an optimal route to a vehicle using a car telephone.