JPH0714998Y2 - Autonomous navigation simulator for car navigation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a self-contained navigation device that provides a vehicle navigation system with simulated vehicle position information.

(Prior Art) An autonomous navigation device that detects vehicle position information, which is essential data for a vehicle navigation system, is actually attached to a vehicle and used.

Therefore, the development of the car navigation system is carried out by mounting the self-contained navigation device on the vehicle and mounting the car navigation system onboard to actually drive the car outdoors.

(Problems to be solved by the invention) However, since the development of the automobile navigation system had to actually run outdoors as described above, there was a problem that it took a lot of time and labor for debugging. .

An object of the present invention is to provide a self-contained navigation simulator which can easily obtain the same effect as that of the self-contained navigation device indoors and solves the above problems.

(Means for Solving the Problem) As shown in FIG. 1, the self-contained navigation simulator of the present invention has an information input means 21 for outputting position data on coordinates when moved on a plane, and a plurality of predetermined ratios. Means for storing
22 and a coordinate value based on the position data output from the information input means 21 is changed in the storage means 22 in accordance with a storage ratio, and the changed coordinate value is simulatedly generated and stored as vehicle position data. The storage means 23 and the sending means for sending the generated vehicle position data stored in the creating / storing means 23 to the vehicle navigation system 8 according to a request from the vehicle navigation system 8 are provided.

(Operation) By moving the information inputting means 21, the information inputting means
21 outputs position data on coordinates. The coordinate value based on the position data is changed according to the ratio stored in the storage means 22, and the changed coordinate value is simulatedly generated and stored as vehicle position data. The stored vehicle position data thus stored is sent to the vehicle navigation system 8 in accordance with a request from the vehicle navigation system 8.

Further, when a plurality of ratios stored in the storage means in advance is changed to another ratio, vehicle position data is also generated according to the changed ratio.

As a result, the vehicle navigation system can be efficiently developed without actually driving the vehicle.

(Embodiment) Hereinafter, the present invention will be described with reference to an embodiment.

FIG. 2 is a block diagram showing the construction of an embodiment of the present invention.

10 is a self-contained navigation simulator. This self-contained navigation simulator 10
Is an information input device 7 such as a mouse which acts as a vehicle in a simulated manner, a computer 9 having a central processing unit 1, ROM2, RAM3 and CRT4, an interface circuit 6 between the information input device 7 and the computer 9, An interface circuit 5 between the computer 9 and the car navigation system 8 is provided, and relative X coordinate and Y coordinate signals are moved via the interface circuit 6 when the information input device 7 is moved on a horizontal plane such as a table. Information to the computer 9 and the information input device 7
The computer 9, which receives the output data from the computer 9, artificially generates the own vehicle position information on the RAM 3 and displays the movement of the own vehicle position on the screen of the CRT 4. Further, the vehicle position information is exchanged with the car navigation system 8 via the interface circuit 5, that is, communication is performed. Here, the communication system from the car navigation system 8 is a command system.

3 and 4 are a diagram showing a display on a CRT tube surface in the present invention and a flow chart for explaining the operation of the present invention.

When the program is started, the data from the information input device 7 is read, the read data is stored in the input data storage area of the RAM3, and the position of the information input device 7 is changed to CRT4 based on the data from the information input device 7. Is displayed on the tube surface of (step S ₁ ). An example of the display on the tube surface of the CRT ₄ in step S ₁ is as shown in FIG.
In FIG. 3, 11 indicates a vehicle mark, and Z indicates a later-described position. Subsequent to step S ₁ , based on the data stored in the input data storage area of the RAM 3, the coordinate value is calculated according to a predetermined ratio, and the direction of vehicle movement is calculated from the calculated coordinate value. It is (step S _2). The coordinate value calculated in step S ₂ and the calculated azimuth are stored in the coordinate value storage area of RAM 3 (step S ₃ ). When you ratio to another ratio and starts the program from the beginning, is executed from Step S ₁ Step S ₃ again, the and being carried out a similar operation, the modified computed coordinate value according to the ratio And bearing value is RAM3
Will be stored in the coordinate value storage area.

Step S ₁ to S ₃ until it receives a command from the automotive navigation system 8 is repeated (step S _4). Step S ₄
Command received is checked whether a reset command when it receives a command from the automotive navigation system 8 (Step S _5). In step S ₅ ,
Command received subsequent to the step S ₅ when the received command is not determined to be the reset command is checked whether the data request command (Step S _6).
In FIG. 4, the data request command is shown as a data command.

In step S _6, when the received command is determined to be a data request command is subsequently to step S _6, RAM 3
As the operation side position and calculating the coordinate value vehicle position stored in the coordinate value storage area, it is sent to an automobile navigation system 8 (Step S _7), followed by the step S ₁ is executed.

In step S _5, the vehicle position following the step S ₅ when the received command is determined to be reset command is returned to the reset position (step S _8), the step S ₇ Following Step S ₈ To be executed. Step S ₈
In, the contents stored in the input data storage area of the RAM 3 are changed to the data for the reset position, and the contents stored in the coordinate value storage area are also changed to the coordinate values for the reset position. As a result, the display on the screen of the CRT 4 is returned to the reset position, and the calculated azimuth value and the calculated coordinate value sent to the vehicle navigation system 8 as the own vehicle position in step S ₇ become the values corresponding to the reset position.

In step S _6, when the received command is not determined to be the data request command, step S ₁ again after step S ₆ is executed.

(Effect of the Invention) As described above, according to the present invention, the own vehicle position information is simulated from the movement amount of the information input device. The same effect is obtained. As a result, the car navigation system can be efficiently developed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram showing the configuration of the present invention. FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 3 is a diagram showing an example of a display on the surface of the CRT in the embodiment of the present invention. FIG. 4 is a flow chart for explaining the operation of one embodiment of the present invention. 1 ... Central processing unit, 2 ... ROM, 3 ... RAM, 5 and 6 ... Interface circuit, 7 ... Information input device, 8 ...
Car navigation system, 9 ... Computer, 21 ... Information input means, 22 ... Storage means, 23 ... Generation / storage means.

Claims (1)

[Scope of utility model registration request] 1. An information input means for outputting position data on coordinates when moved on a plane, a storage means for storing a plurality of predetermined ratios, and a position data output from the information input means. Generating / storing means for changing the coordinate values in the storing means according to the ratio of storage and generating and storing the changed coordinate values as vehicle position data in a simulated manner, and generating / storing means according to a request from the vehicle navigation system. And a sending means for sending the vehicle position data generated in the memory to the vehicle navigation system.