JP3329617B2 - Navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device used for guidance of a route of a vehicle based on information stored in a CD / ROM.

[0002]

2. Description of the Related Art Conventionally, this kind of navigation device has
Various navigation information such as map information stored in a CD / ROM is read out by optical means and is displayed on a display means. When changing the display to different navigation information such as IIS information of the Navi Lab software other than the map information while displaying the map information on the display means, a CD / CD storing the different navigation information may be used. The display can be changed by replacing the ROM.

[0003]

However, in the above conventional navigation apparatus, when the CD / ROM is replaced and new navigation information is displayed, when the information of the CD / ROM before replacement is displayed again, CD ・
It is necessary to replace the ROM again and return to the original one, and every time the display is changed to different navigation information, the CD / RO
M has to be exchanged, and information of different CD / ROMs cannot be displayed at the same time without exchanging the CD / ROM.

The present invention has been made to solve the above-mentioned conventional problems, and can provide a different CD / DVD without replacing the CD / ROM.
An object of the present invention is to provide an excellent navigation device capable of displaying information in a ROM.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides means for detecting the position of a vehicle, and a CD / RO.
Reading means for reading information stored in M, display means for displaying this information on a display screen, and an IC memory
Comprising storage means for storing the card, and an IC memory card <br/> information display means for displaying the information read from the storage unit on the display screen, stored in the IC memory card
Information is IIS information, and the IC memory card information is
Information display means overwrites the IIS information on the display screen
Is what you do.

[0006]

Therefore, according to the present invention, information such as IIS information stored in a CD / ROM is read out, and this information is read by an IC.
By storing in a memory card, CD / ROM
When the information is exchanged, the information stored in the IC memory card can be read and overwritten on the map display screen without exchanging the CD / ROM again.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows a configuration of an embodiment.
In FIG. 1, reference numeral 1 denotes a vehicle speed sensor, which converts a vehicle speed into an electric signal. Reference numeral 2 denotes a speedometer for displaying the speed of the vehicle, 3 denotes an engine controller (ECU) for controlling the engine of the vehicle, and 4 denotes a main body system of the navigation device according to the present invention. Reference numeral 5 denotes speed detecting means, which detects the speed of the vehicle from a signal from the speed meter 2 to the ECU 3. Reference numeral 6 denotes a CPU that controls the main body 4 of the navigation device. 7 is a gyro device for detecting the traveling direction of the vehicle, and 8 is a GP for obtaining a position information signal from a satellite.
S antenna 9 is a GPS signal detecting means for detecting the position of the vehicle from the signal received by the GPS antenna 8. 10
Is a CD / ROM changer.
The changer 10 stores a plurality of CD / ROMs each storing different navigation information, and has means for optically reading information from the specified CD / ROM.

[0008] 11 is an IC memory card, the IC
The memory card 11 has a built-in ROM and RAM. 12 is an IC memory card information reading and writing means, the IC memory card information reading and writing means 1
2 is performed or read information stored in the IC memory card 11, or the RAM in the information writing in the IC memory card 11. 13 CD · ROM changer and IC memory card <br/> de information display means for converting the display information to be displayed on the display device 14 the information stored in the information and IC memory card 11 than CD · ROM changer 10 It is. Reference numeral 15 denotes a remote control device for giving an instruction for controlling the entire main body 4 to the CPU 6.

Next, the operation of the above embodiment will be described. When a specific CD / ROM stored in the CD / ROM changer 10, for example, a CD / ROM storing map information, is designated by the remote controller 15, the CD / ROM changer 10 is controlled by the control signal a from the CPU 6, and Map information is CD from specific CD / ROM
-The information is read by the ROM changer and IC memory card information display means 13 and the map information is displayed on the display device 14.

[0010] Next, the CD / R
Specific CD / ROM stored in OM changer 10
Is specified, the control signal a from the CPU 6
The ROM changer 10 is controlled so that the specific CD
Information is read from the ROM. Also, the remote control device 1
When the IC memory card 11 is selected by 5, the operation of the IC memory card information reading / writing means 12 is controlled by the control signal b. Then, information from the designated CD-ROM by the control signal c, for example, IIS information navigation Research software is transferred to the IC memory card information read-write unit 12, IC memory card <br/> de 11 by the control signal d performs control to write into the RAM of the inner, by executing a program written in the ROM of the IC memory mosquitoes <br/> over de 11, transferred information is in the IC memory card 11 RA
M is written.

Here, the remote controller 15 controls the IC
When the display of the IIS information written in the RAM in the memory card 11 is selected, the control signal e from the CPU 6
IIS information in the IC memory card 11 is transferred to the IC memory card <br/> de information read-write unit 12, a control signal f
The display command is sent to the CD / ROM changer and the IC memory card information display means 13 by the
4, the IC memory card 11
Overwrites the IIS information stored in the
You.

As described above, according to the above embodiment, the IC
The IIS information of the CD / ROM can be stored in the RAM of the memory card 11, and when the information before the replacement is displayed after the CD / ROM stored in the CD / ROM changer 10 is replaced, the information is displayed again. without replacing the CD · ROM, I stored in the IC memory card 11
The IS information can be read and overwritten on the map display screen.

The information stored in the IC memory card 11 is not limited to IIS information, but may be any information stored on a CD / ROM. In this case, a different CD
The information in the ROM can be displayed on the screen at the same time.

[0014]

As is apparent from the above embodiment, the present invention reads out information such as IIS information stored in a CD / ROM, and stores this information in an IC memory card, so that the CD / ROM can be read. If you replace the CD,
This has the effect that the information stored in the IC memory card can be read and overwritten on the map display screen without replacing the ROM.

[Brief description of the drawings]

FIG. 1 is a block diagram of a navigation device according to an embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 1 vehicle speed sensor 2 speedometer 3 engine controller 4 body of navigation device 5 speed detecting means 6 CPU 7 gyro device 8 GPS antenna 9 GPS signal detecting means 10 CD / ROM changer 11 IC memory card

Continuation of the front page Judge of the Joint Panel Judge Yoshimi Ohno Judge Masayoshi Iwamoto Judge Yuji Sugawazawa (56) References JP-A-3-92441 (JP, A) JP-A-7-73396 (JP, A) JP-A 4-178682 (JP, A) JP-A-62-1116210 (JP, A) JP-A-5-11696 (JP, A) JP-A-4-220686 (JP, A) (58) Fields investigated (Int. Cl. ^7, DB name) G01C 2/00 G08G 1/00 G09B 29/00 B60Q 3/00

Claims (1)

(57) [Claims] 1. A reading means for reading map information and IIS information from a CD / ROM, a display means for displaying the map information on a display screen, and a storage means for storing the IIS information in an IC memory card, A navigation device, wherein the IIS information read from an IC memory card is overwritten on the map information displayed on the display screen.