JP3946917B2 - Navigation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation system, and more particularly, to a navigation system including an in-vehicle audio device that reproduces music from a storage medium and an in-vehicle navigation device that outputs a guidance voice via a speaker connected to the in-vehicle audio device.
[0002]
[Prior art]
A navigation device that provides vehicle travel guidance and allows a driver to easily reach a desired destination, detects the location of the vehicle, and reads map data around the vehicle location from a ROM disk such as a DVD-ROM. The map image is displayed on the display screen, and the vehicle position mark is superimposed and displayed at a predetermined position on the map image. As the current position changes due to the movement of the vehicle, the vehicle position mark on the screen is moved or the map is scrolled with the vehicle position mark fixed at a predetermined position such as the center of the screen. Map information around the car position can be seen at a glance.
[0003]
Such a navigation device has a route search function for searching for an optimum route from the position of the vehicle to the destination when a desired destination is input. The guidance route is displayed on the display screen and voice guidance is provided. Thus, the driver is surely guided to a desired destination.
[0004]
Some navigation devices mounted on a vehicle output guidance voices using speakers of the audio device connected to the audio device. Usually, an audio device outputs a music source (for example, CD, MD, etc.) selected by the driver from a speaker mounted in the passenger compartment to entertain the driver, but an interrupt signal for guidance voice is sent from the navigation device to the audio device. When input, the audio device switches from the music that has been played so far to the guidance voice of the navigation device and outputs it. Further, this guidance voice can be output by an operation of the driver's remote control or the like. For example, by pressing a guidance request button on the remote control, a guidance voice corresponding to the driving at that time is output.
[0005]
[Problems to be solved by the invention]
By the way, the guidance voice of the navigation device described above includes a guidance voice that is important for the driver and a guidance voice that is not so important. For example, the guidance voice such as "Turn right 300m" is important for the driver who is going to turn ahead, and the guidance voice such as "Go straight 10km" has a margin and is not so important. It is. However, the conventional navigation apparatus stops the output of the music that has been listened to and outputs the guidance voice even if the guidance voice is not so important regardless of its importance. For this reason, the driver may feel uncomfortable because the music he was listening to is interrupted despite the less important guidance voice. On the other hand, when there is no voice guidance for a long time during traveling, there is a troublesome operation of remote control to obtain guidance voice.
[0006]
Accordingly, an object of the present invention is to provide a navigation device that does not unnecessarily interrupt the music being listened to by outputting guidance voices that are not so important to the driver between reproduced music.
[0007]
Another object of the present invention is to periodically obtain guidance voices by outputting some kind of guidance voices between the songs.
[0008]
[Means for Solving the Problems]
According to the above object the present invention, the vehicle audio apparatus for reproducing music from a storage medium, in a navigation system Ru and a vehicle navigation system for outputting a guidance voice through a speaker connected to該車placing audio device, wherein The in-vehicle audio device includes an audio control unit that temporarily stops reproduction between music pieces of music to be reproduced, transmits a request signal for guidance voice to the in-vehicle navigation device, and outputs guidance voice sent from the navigation device, the in-vehicle navigation apparatus, Rukoto comprises a guide voice request signal input unit for receiving a request signal of the voice guidance, and a guidance speech creation unit that outputs to create a guidance voice in response to the request signal the vehicle audio device Achieved by:
[0009]
As a result, it is not necessary to press the guide request button on the remote control while traveling, regularly guide voice can give Rukoto.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
(A) Outline of the Present Invention FIG. 1 is a schematic explanatory view of the present invention. (A) is a schematic configuration diagram thereof, 11 is a navigation device, 12 is an audio device, and 13 is a speaker of the audio device 12. (B) is an example in which priority is given to the guidance voice output from the navigation device 11, and the priority of the guidance voice that is important to the driver, for example, the short remaining distance such as (1) having no time margin, is given. Although the guidance voice is high and is not so important, for example, a long distance such as (2) has a time margin, the priority is set low. That is, the priority of the guidance voice when the distance from the vehicle position to the guidance target point is shorter than the predetermined distance is set high, and the priority of the guidance voice when the distance is long is set low.
[0013]
The navigation device 11 creates a guidance voice according to the traveling of the vehicle, and outputs the guidance voice to the audio device 12 together with an interrupt signal with a priority set according to the contents of the created guidance voice. When the priority of the guidance voice attached to the interrupt signal is high, the audio device 12 pauses the music being reproduced, and outputs the guidance voice output from the navigation device 11 from the speaker 13. When a predetermined time elapses after the pause is started, the pause is canceled and the music reproduction is resumed.
[0014]
Also, when the priority of the guidance voice attached to the interrupt signal is low, the audio device 12 continues to play until the music being played is between songs, and pauses and guides to the navigation device 11 between songs. Outputs an audio request signal. The navigation device 11 that has received this request signal creates a guidance voice and outputs it to the audio device 12, and the audio device 12 outputs the guidance voice from the speaker 13. When a predetermined time elapses after the pause is started, the pause is canceled and the music reproduction is resumed. Furthermore, the audio device 12 pauses every time the music being played is between songs and outputs a request signal for guidance voice to the navigation device 11. Each time the navigation device 11 receives the request signal, it creates and outputs a guidance voice.
[0015]
(B) Embodiment (a) Configuration of Audio Device FIG. 2 is a configuration diagram of an audio device 12 according to an embodiment of the present invention. In the figure, reference numeral 1 denotes an audio control unit that controls the entire audio apparatus, and 2 denotes an operation unit that performs an audio source selection operation, a volume adjustment operation, and the like. 3 is an MD unit, 4 is a CD unit, and 5 is a cassette tape unit. Reference numeral 6 denotes a selector that switches audio signals input from the MD unit 3, CD unit 4, cassette tape unit 5, and navigation device 11 based on instructions from the audio control unit 1. Reference numeral 7 denotes an audio circuit which adjusts the volume of the audio signal input from the selector 6 or stops the output of the audio signal according to an instruction from the audio control unit 1. Reference numeral 8 denotes an amplifier that amplifies the audio signal output from the audio circuit 7.
[0016]
Reference numeral 11 denotes a navigation device, which outputs an interrupt signal with priority of the guidance voice to the audio control unit 1 when outputting the guidance voice. Reference numeral 13 denotes a speaker installed in the passenger compartment.
[0017]
(B) Configuration of Navigation Device The navigation device 11 has a configuration as shown in FIG. In FIG. 3, 21 is a ROM disk that stores map information, 22 is a ROM disk control unit that controls reading of map information from the ROM disk 21, and 23 is a position measurement unit that measures the current position of the vehicle. Vehicle speed sensor for detecting the movement, gyro for detecting the moving direction, CPU for position calculation, and the like.
[0018]
Reference numeral 24 denotes a navigation control unit that controls the entire navigation apparatus, 25 denotes an operation unit that performs menu selection operations, map enlargement / reduction operations, and the like, 26 denotes a map drawing unit that draws a map image, and 27 displays a map image. The display 28 is a route guidance processing unit that obtains an optimum route from the vehicle position to the destination and performs route guidance along the obtained route.
[0019]
Reference numeral 29 denotes a guidance voice request signal input unit which receives a signal for requesting a guidance voice to be output between songs when the playback music of the audio device 12 is between songs. Reference numeral 30 denotes a guidance voice creation unit that creates guidance voices of guidance target points when the vehicle is guided, and the created guidance voice is stored in an internal memory (not shown). An interrupt signal output unit 31 sets priority according to the remaining distance to the guidance target point of the guidance voice created by the guidance voice creation unit 30 and outputs the priority to the audio control unit 1 with the interrupt signal. Reference numeral 32 denotes a bus line in the navigation device 11.
[0020]
(C) Processing Flow of Audio Device FIG. 4 is a processing flow of the audio device of the present invention. First, the audio control unit 1 determines whether or not an interrupt signal from the navigation device 11 has been received (step 101). If received, the audio control unit 1 determines whether or not music is currently being played back (step 102). If music is being played back, the audio control unit 1 determines whether the priority of the guidance voice attached to the interrupt signal is high (step 103). When the priority is high, the audio control unit 1 pauses the music being played back (step 104), the selector 6 is set to the navigation device 11 side, and the guidance sound output from the navigation device 11 is output from the speaker 13. (Step 105). Thereafter, when a predetermined time elapses after the pause is started, the pause is canceled and the music reproduction is resumed (step 106).
[0021]
In step 102, when the music is not being reproduced, the audio control unit 1 outputs a guidance voice from the navigation device 11 (step 107).
[0022]
In steps 101 and 103, when the interrupt signal from the navigation device 11 is not received and the priority of the guidance voice is low, the audio control unit 1 determines whether or not the currently reproduced music is between songs. (Step 108). If it is between songs, the audio control unit 1 pauses the reproduced music (step 109), and transmits a guidance voice request signal to the navigation device 11 (step 110). Thereafter, the process proceeds to step 105, where the guidance voice sent from the navigation device 11 is output. When a predetermined time has elapsed after the pause is started, the pause is released and the music reproduction is resumed. If it is not between songs, the process proceeds to step 101 to perform the subsequent processing.
[0023]
(D) Processing Flow of Navigation Device FIG. 5 is a processing flow of the navigation device of the present invention. When it comes to a point where voice guidance is generated during vehicle guidance (step 201), the guidance voice creation unit 30 creates guidance voice, and the navigation control unit 24 reaches the guidance target point of the guidance voice created by the guidance voice creation unit 30. Priorities are set according to the remaining distance (step 202). For example, the priority is set high when the remaining distance to the guidance target point is 300 m or less, and the priority is set low when the distance is more than that. Next, the navigation control unit 24 outputs the guidance voice created by the guidance voice creation unit 30 to the audio device 12 together with the interruption signal with the priority of the guidance voice from the interruption signal output unit 31 (step 203).
[0024]
If it is not a point where voice guidance is generated in step 201, the navigation control unit 24 determines whether or not a guidance voice request signal from the audio device 12 has been received (step 204). The subsequent processing is performed after the migration. If received, the guidance voice creation unit 30 creates a guidance voice (step 205), and outputs the created guidance voice to the audio device 12 (step 206).
[0025]
In the above description, the guidance voice is output when the music being played is between the first songs. However, the guidance voice is given between the songs after the two songs are finished and between the songs after the three songs are finished. It is possible to easily change to a process such as outputting or not outputting a guidance voice having a low priority from the beginning.
[0026]
Although the present invention has been described with reference to the embodiments, various modifications can be made in accordance with the gist of the present invention described in the claims of the present invention, and the present invention does not exclude these.
[0027]
【The invention's effect】
According to the present invention above, it is so arranged to output some guidance voice for each between song playback music, driver safety reduces the operation of the remote controller during traveling can Rukoto enhanced.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram of the present invention.
FIG. 2 is a configuration diagram of an audio apparatus of the present invention.
FIG. 3 is a configuration diagram of the navigation device of the present invention.
FIG. 4 is a processing flow of the audio device.
FIG. 5 is a processing flow of the navigation device.
[Explanation of symbols]
1. Audio control unit 2. Operation unit 3. MD unit 4. CD unit 5. Cassette tape unit 6. Selector 7. Audio circuit 11. Navigation device 12. Audio device 13. Speaker 24. Navigation control unit 29 Guidance voice request signal input unit 30 Guidance voice creation unit 31 Interrupt signal output unit

Claims (1)

A vehicle audio device to play music from a storage medium, in a navigation system Ru and a vehicle navigation system for outputting a guidance voice through a speaker connected to該車placing audio device,
The in-vehicle audio apparatus includes an audio control unit that temporarily stops reproduction between music pieces to be reproduced, transmits a guidance voice request signal to the in-vehicle navigation apparatus, and outputs the guidance voice transmitted from the navigation apparatus. ,
The on-vehicle navigation device includes a guidance voice request signal input unit that receives the request signal for the guidance voice, and a guidance voice creation unit that creates a guidance voice according to the request signal and outputs the guidance voice to the on-vehicle audio device. A featured navigation system.

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