JPH04125416A - Navigation apparatus of vehicle - Google Patents

Abstract

PURPOSE:To make it possible to listen to the music written in a CD player, at the same time when software of CD-ROM is executed, by reading information written in a storage means and by judging whether it is information of CD-ROM or audio information. CONSTITUTION:An input is made by a key switch 5 and it is checked up whether information of CD-ROM stored in a CD player is music information or not. When the information is of CD-ROM, it is displayed in a CD-ROM judgement display unit 9 that it is of CD-ROM. Subsequently, judgement as to whether data of CD-ROM are to be transferred to RAM 8 of a control circuit 6 is executed. When they are judged to be transferred, the data are transferred to the RAM 8 and judgement is made as to whether software is to be executed or not. When the result of judgement is YES, the content of the software is executed, and when it is NO, CD-ROM is made to discharge CD. When a judging means judges the information to be audio one on the other hand, it is checked up whether playing is to be made or not, and when it is thought YES, the audio information of the CD is made to be played. When it is thought NO, the CD-ROM is made to discharge the CD.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a vehicle navigation device, and more particularly to a CD-ROM on which map data of a road network for a vehicle navigation device is written as CD information. This invention relates to an improvement in a navigation device for a vehicle that has a built-in ROM and a CD player as audio information for music.

(Prior Art) As shown in FIG. 4, a conventional navigation device for a vehicle of this type includes a CD-ROM in which map data of a road network is written as CD information and a CD player in which audio information for music is written as a CD. CD player unit equipped with (
(hereinafter simply referred to as "rCDCD") 4, a gyro compass 1 that detects the magnetic direction of the vehicle, and a traveling direction sensor that detects the traveling distance of the vehicle from the wheel rotation sensor 2 and the traveling direction of the vehicle from the difference in left and right wheel rotation. 3 and dual use C
The movement trajectory of the vehicle is determined by calculation from the outputs of the D-brayer 4, the gyro compass 1, the wheel rotation sensor 2, and the heading sensor 3, and the control circuit 6 controls the drive operation of the vehicle, and the vehicle movement determined by the control circuit 6. It is equipped with a CRT (display device) 7 that displays the trajectory on the screen, and is configured so that the vehicle can travel based on the trajectory of the vehicle displayed on the display device 7, and an operation key 5 that starts driving the control circuit. It was supposed to work by switching.

(Problem to be Solved by the Invention) However, according to the conventional vehicle navigation device configured in this way, a CD-ROM that stores both map data on the road network and audio information for music is written. Since the CD player unit has both CD and audio information, only one of the media can be loaded onto the CD player, making it impossible to listen to music from the CD player while running the software on the CD-ROM. There was a bad thing.

Therefore, the present invention eliminates the disadvantages of the conventionally configured vehicle navigation system and provides a system that can run software on a CD-ROM containing road network map data.
It is an object of the present invention to provide a navigation device for a vehicle that can simultaneously listen to music written on a CD player.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above problems, a vehicle navigation device according to the present invention includes a direction detection means for detecting the direction of the vehicle, and a wheel rotation sensor to detect the travel distance of the vehicle. A CD-ROM in which map data of a traveling distance detecting means, a traveling direction detecting means for detecting the traveling direction of the vehicle based on the rotation difference between left and right wheels, and a road network was written as CD information, and audio information for music was written as a CD. a storage means, a means for calculating a vehicle travel trajectory based on the direction detection means, travel distance detection means, traveling direction detection means, and storage means; and displaying the vehicle travel trajectory determined by the means on a screen. a display means, a determination means for reading information written in the storage means and determining whether the information is CD-ROM information or audio information; and a memory determined by the determination means to be CD-ROM information. It is provided with auxiliary storage means for transferring and storing information of the means.

(Function) As described above, according to the vehicle navigation device according to the present invention, the determining means determines whether the CD information written in the storage means is CI)-ROM information or audio information, and When it is determined that the CD-ROM information is ROM information, the CD-ROM information is transferred to the auxiliary storage means and the content (software) of the written CD-ROM information is executed, and the audio information for music written in the CD player is also transferred. I can hear it.

(Example) Next, an example of the present invention will be described based on the drawings.

FIG. 1 shows the configuration of a vehicle navigation system according to a first embodiment of the present invention. In Figure 1, 1 is a gyroscope that detects the direction of the vehicle, 2 is a vehicle speed sensor that detects the vehicle speed using wheel rotation sensors, and 3 is a vehicle speed sensor that detects the vehicle's direction based on the rotation difference between the left and right wheel sensors. A direction sensor 4 is a CD-ROM in which road network map data, guidance information, etc. are written, and a CD player in which audio information for music is written; 6a is the gyro sensor 1, the vehicle speed sensor 2, the heading sensor 3, and the CD player 4. 5 is a key switch that starts driving the vehicle, and 7 is a CRT for displaying the vehicle travel trajectory determined by the control circuit 6a. , 9 is a judgment display that judges whether the information written in the CD player is CD data software or music software and displays the result;
8 is a semiconductor memory RAM to which a CD-ROM is transferred by the judgment display 9 and executes data software.

Further, FIG. 2 shows a schematic configuration of a second embodiment of the vehicle navigation system of the present invention. In FIG. 2, the same reference numerals as in FIGS. 1 and 4 represent the same members as those in these figures.

However, 8b in FIG. 2 represents a magnetic recording medium to which the CD-ROM displayed on the CD-ROM determination display 9 is transferred and executes the CD data software.

Next, the flow of the operation sequence of the vehicle navigation device shown in FIGS. 1 and 2 will be described.

First, as shown in FIG.
After attaching the CD-ROM player (step S1), manually press the key switch 5 to check whether the CD-ROM information stored in the storage means (CD player) is music information (step 5-2). CD-RO when it is information
Display that it is a CD-ROM on the M judgment display 9 (step 5-3), then judge whether or not to transfer the CD-ROM data to the RAM 8 (or 8b) of the control circuit 6, and decide to transfer it. If so, RAM8 (or 8
b) Transfer the data to step 5-7). After determining whether to run the software, if yes, execute the contents of the software (step 5-9); if no, select CD, The CD is ejected from the ROM (step S-10).

On the other hand, if the determining means determines that it is voice information in step S-2, check whether or not there is a blur in step S-5.
-4) If you think yes, play the audio information on the CD (step 5-5).

If the answer is no, the audio CD is ejected from the CD (step S-10).

As explained above, according to this embodiment, when a CD-ROM on which map guide information is written is loaded into a CD player, the CD player confirms that it is a CD-ROM and Because the system transfers data to the control circuit, the CD player, which was previously used exclusively for reading data from CD-ROMs, can now be used to play music CDs.

Furthermore, since the data in the CD-ROM is transferred to the semiconductor memory RAM or magnetic recording medium in the control circuit once, unless the contents are erased, the CD-ROM can be repeatedly loaded into the CD-ROM without being loaded into a CD player. The written data can be used.

〔Effect of the invention〕

As is clear from the above description, according to the vehicle navigation device according to the present invention, map data of a road network,
When a CD-ROM on which guidance information, etc. is written is loaded into a CD player, the determining means determines whether it is a CD-ROM or audio information for music, and then the CD-ROM is loaded.
When it is confirmed that the data is in the CD-ROM, the software is transferred to the auxiliary storage means and the software is executed. You can also listen to audio information at the same time.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a vehicle navigation device according to a first embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a vehicle navigation device according to a second embodiment of the present invention, and FIG. This figure is a flowchart showing the operating procedure of the vehicle navigation device according to the embodiment shown in FIGS. 1 and 2, and FIG. 4 is a schematic configuration diagram of the conventional vehicle navigation device. 1...Gyroscope 2...Vehicle speed sensor using wheel circuit sensor 3...
- Traveling direction sensor 4...CD player 5...key input switch 6...control circuit 7...CRT 8...semiconductor memory RAM 8b...magnetic storage medium 9...CD-ROM judgment display

Claims (1)

[Scope of Claims] Direction detection means for detecting the direction of the vehicle; mileage detection means for detecting the distance traveled by the vehicle from a wheel rotation sensor;
A traveling direction detecting means for detecting the traveling direction of the vehicle from the rotation difference between left and right wheels, a CD-ROM in which road network map data is written as CD information, a storage means in which music audio information is written as a CD, and these directions. A means for calculating the movement trajectory of the vehicle based on the detection means, the traveling distance detection means, the traveling direction detection means, and the storage means, and a display means for displaying the movement trajectory of the vehicle obtained by the control means on a screen. In a vehicle navigation device, the information written in the storage means is read and the CD-
A vehicle characterized in that it is provided with a determining means for determining whether the information is ROM information or audio information, and an auxiliary storage means for transferring information stored in the storage means determined to be CD-ROM information by the determining means and executing the contents thereof. navigation device.