JP2002071355A - Navigation system and navigation information providing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adequately provide a large amount information through easy operations. SOLUTION: A carrier reproduction processing part 10 sends an information signal read out of an external record carrier 4 to a reproduction signal processing part 11 to reproduce data representing, for example, navigation information. The reproduction signal processing part 11 outputs the reproduced data to a bus 3 and transfers them to a recording information control processing part 40 of a navigation device 2. The recording information control processing part 40 sends the data received from the bus 3 to an operation control processing part 42 through an input/output control part 42. The operation control processing part 42 generates management information for recording the data read out of the external record carrier 4 in an internal recording part 13 that a record carrier reproducing device 1 is equipped with. The operation control processing part 42 controls the recording information control processing part 40 for recording the data read out of the external record carrier 4 and the management information in the internal recording part 13. Consequently, navigation information can be provided by using the data recorded in the internal recording part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation system for providing a user with navigation information for guiding a route of a moving body such as an automobile, and in particular, a large amount of information can be easily handled by a simple operation. And a navigation system that can be provided to a user.

[0002]

2. Description of the Related Art With the spread of high-density and large-capacity record carriers such as DVDs (Digital Versatile Discs), a large amount of information can be handled by a navigation system with a simple operation. For example, many CD-ROMs
The navigation information for route guidance and map display recorded in (Compact Disc-Read Only Memory)
It is possible to provide navigation information including a detailed map of the whole of Japan without recording on a single DVD and exchanging disks.

As a recording medium for recording such a large amount of navigation information, for example, a DVD-ROM having a recording capacity of 8.5 Gbytes in a single-sided, two-layer system is known.

[0004] On the other hand, navigation systems continue to develop as multimedia devices, such as CDs and MDs.
Products that have the function of receiving television broadcasts and connecting to the Internet in addition to the function of playing back (Mini Disc), and the VICS (Vehicle Information and Communicat).
ion System), ETC (Electronic Toll Collection s)
Products that can use ystem) are also known.

[0005]

According to the above-mentioned prior art, the navigation information that enables high-definition display and natural voice guidance has an information amount substantially equal to the recording capacity of one single-sided, dual-layer DVD-ROM. Has become. For this reason, for example, information on restaurants, sightseeing spots, etc.
In order to be able to provide more information together with navigation information, it is necessary to provide a record carrier on which such information is recorded.

Further, road information, traffic regulation information, interchange information, information indicating landmarks of intersections and the like provided as navigation information need to be updated in accordance with the actual road change situation. At this time, the large capacity D
Updating the entire information recorded on the VD-ROM to new navigation information and providing the updated information is undesirable from the viewpoint of the time required for production and the cost reduction of the recording carrier itself.

Furthermore, in such a method of reading information recorded on an external recording carrier, it is necessary to frequently perform an operation of replacing the recording carrier, and there is a possibility that the recording carrier may be damaged. Switching operation while driving may cause a traffic accident.

[0008] When providing data by reading data recorded on a DVD-ROM,
It is not possible to reproduce DVDs and CDs on which audio data such as music is recorded, DVDs on which video data such as video images are recorded, and the like. For this reason, the function of the navigation system as a multimedia device could not be fully exhibited.

The present invention has been made in view of the above situation, and has as its object to provide a navigation system capable of easily handling a large amount of information with a simple operation and appropriately providing the information to a user.

[0010]

In order to achieve the above object, a navigation system according to a first aspect of the present invention provides navigation information mounted on a moving body such as an automobile for guiding a route. A carrier data reading means for setting an external recording carrier and reading data recorded on the external recording carrier, and a built-in means for recording data read by the carrier data reading means. Recording means, position information acquisition means for acquiring position information indicating the current position of the moving object, navigation information generation output means for generating and outputting navigation information based on data recorded in the built-in recording means, When the position information acquiring means acquires the position information, the data recorded in the built-in recording means is transferred to the navigation information generating and outputting means, and the navigation information is outputted. A control processing means for generating a Shon information, characterized in that.

According to the present invention, the data read from the external recording carrier is recorded in the internal recording means, the data recorded in the internal recording means is transferred to the navigation information generating and outputting means, and the navigation information is transmitted. Can be output. Thus, even when the amount of navigation information becomes large, it is possible to provide the user with a simple operation without replacing the external record carrier.

The control processing means includes, for example, a FAT (File Allocation Tabl) for recording the data read by the carrier data reading means in the built-in recording means.
It is preferable that management information such as e) and a header be created and recorded in the built-in recording means together with the data read by the carrier data reading means.

The control processing means, when the carrier data reading means reads data for updating from an external recording carrier,
For recording update data in the internal recording means,
Create management information such as FAT and header,
It is desirable to update the data already recorded in the built-in recording means by overwriting new data.

The built-in recording means has a recording capacity capable of recording data read from the plurality of external recording carriers by the carrier data reading means, and each of the external recording carriers read by the carrier data reading means. It is desirable to record data by providing a plurality of recording areas corresponding to the above. Further, the control processing means, when recording the data read by the carrier data reading means in the built-in recording means, indicates a start position and an end position of each recording area provided in the built-in recording means, For example, it is desirable to create management information such as FAT and record it in the built-in recording means together with the data read by the carrier data reading means.

The built-in recording means includes, for example, VICS (Ve
recording information other than the data read by the carrier data reading means, such as road traffic information and route trajectory information received by a vehicle information and communication system, or image data captured from a digital still camera. It is desirable to have a region.

The carrier data reading means comprises signal reproducing means for reproducing at least one of a first audio signal and a first video signal from data read from an external recording carrier, and An output unit configured to generate a second audio signal serving as navigation information from data read from the internal recording unit;
A navigation video generating means for generating a second video signal serving as navigation information from data read from the built-in recording means; a first audio signal reproduced by the signal reproducing means; Selecting means for selecting and outputting any one of the second audio signals generated by the first and second audio signals, a first video signal reproduced by the signal reproducing means, and a second video signal generated by the navigation video generating means. Desirably, a second selection unit that selects and outputs any one of the two video signals. Thereby, the navigation information generated from the audio signal and the video signal reproduced from the external recording carrier and the data read from the internal recording
Various information such as music, video images, and navigation information can be provided to the user appropriately.

The first selecting means selects and outputs the first audio signal reproduced by the signal reproducing means when the signal reproducing means is reproducing the first audio signal,
A second step in which the navigation voice generating means serves as navigation information;
Is generated, it is desirable to preferentially select and output the second audio signal generated by the navigation audio generation means. Thus, even while the audio signal is being reproduced from the external recording carrier, the audio signal serving as the navigation information can be preferentially output, and appropriate information can be provided to the user.

Further, the control processing means may be arranged so that the first selecting means generates the second sound generated by the navigation sound generating means.
When selecting and outputting the audio signal, it is desirable that the carrier data reading means temporarily suspends the operation of reading data from the external recording carrier. Thereby, even when outputting an audio signal serving as navigation information, the audio signal reproduced from the external recording carrier is not overlooked,
Various information can be appropriately provided to the user.

When the output of the second voice signal generated by the navigation voice generating means is completed, the control processing means restarts the operation of reading the data from the external recording carrier by the carrier data reading means. When the output of the second audio signal generated by the navigation audio generation means ends, the first selection means selects and outputs the first audio signal reproduced by the signal reproduction means. desirable.

[0020] Stop detecting means for detecting a stop of the movement of the moving object is provided. The second selecting means includes a signal reproducing means for reproducing the first video signal and a navigation video generating means for reproducing the second video signal. When the stop detecting means detects the stop of the movement of the moving body, the first video signal reproduced by the signal reproducing means is selected and output, and the stop detecting means detects the moving body. It is desirable to select and output the second video signal generated by the navigation video generation means when the stop of the movement is not detected. This allows
For example, when outputting a video signal to a monitor provided for a front seat of an automobile, the second selection means outputs the video signal reproduced from the external recording carrier only when the automobile is stopped. Thus, appropriate information can be provided to the user, and occurrence of a traffic accident can be prevented.

Further, the navigation information generating and outputting means may generate and output navigation information from the data read by the carrier data reading means.

Preferably, the built-in recording means is a hard disk device.

[0023] A navigation system according to a second aspect of the present invention stores data read from an external record carrier,
Recorded in a built-in recording device, and when obtaining position information indicating the current position, from the data read from the built-in recording device, generates and outputs navigation information for guiding a route, I do.

According to the present invention, data read from an external recording carrier can be recorded in a built-in recording device, and navigation information for guiding a route is generated from the data read from the recording device. Can be output. Thereby, by pre-recording the data read from the external record carrier in the recording device, a large amount of navigation information can be easily provided to the user with a simple operation without resetting the external record carrier. be able to.

Further, in the navigation information providing method according to a third aspect of the present invention, the data read from the external record carrier is recorded in a built-in recording device, and when position information indicating a current position is obtained, And generating and outputting navigation information for guiding a route from the data read from the recording device.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation system according to an embodiment of the present invention will be described below in detail with reference to the drawings. A navigation system according to an embodiment of the present invention is mounted on a mobile body such as an automobile, and provides a user with navigation information including information indicating a current position, route guidance information, and the like. In the following, it is assumed that this navigation system is mounted on a car,
A vehicle equipped with this navigation system will be described as "own vehicle".

FIG. 1 is a diagram showing an example of a configuration of a navigation system according to an embodiment of the present invention. As shown in the figure, the navigation system includes a record carrier reproducing device 1 and a navigation device 2. For example, an IDE (Integrated Device Electronic) is provided between the record carrier reproducing device 1 and the navigation device 2.
s) It is connected by a bus 3 composed of a bus or the like, and enables exchange of data for providing navigation information to a user (hereinafter, referred to as “navi data”).

The record carrier reproducing apparatus 1 includes a carrier reproducer 1
0, a reproduction signal processing unit 11, an operation control processing unit 12,
It has an internal recording unit 13 and reads out information recorded on the external recording carrier 4.

The carrier reproduction processing unit 10 includes, for example, an optical pickup, a servo controller, a spindle motor, and the like. For example, a CD (Compact Disc) and a DVD (Digita
l Versatile Disc) for reading information recorded on the external recording carrier 4. The carrier reproduction processing unit 10 sends the information signal read from the external recording carrier 4 to the reproduction signal processing unit 11.

As shown in FIG. 2, the reproduction signal processor 11 includes a DSP (Digital Signal Processor) 20 and a first
A random access memory (RAM) 21, a first switch 22, an audio / video (AV) decoder 23, a second RAM 24, and a second switch 25.

The DSP 20 executes signal processing for demodulating a data signal, such as equalization and error correction of the information signal read from the external recording carrier 4 by the carrier reproduction processing unit 10. For example, by executing signal processing, the DSP 20 performs audio data of a CD-DA (CD-Digital Audio) system or MPEG (Moving Picture Experts Groove).
up) system audio and video data, AC-
3 (Audio Code Number 3) audio data and video data such as audio data. The DSP 20 reproduces digital data serving as navigation data, digital data indicating control information, and the like.

The first RAM 21 is a rewritable semiconductor memory for temporarily storing data when the DSP 20 executes signal processing.

The first switch 22 includes digital data serving as navigation data, audio data and video data of the MPEG system, and audio data of the AC-3 system among the data reproduced by the DSP 20 executing the signal processing. And receive. The first switch 22 is connected to the DS
When the navigation data is received from P20, the data is sent to the recording information control processing unit 40 provided in the navigation device 2 via the bus 3. The first switch 22 is connected to the MP
When receiving the audio data and video data of the EG system or the audio data of the AC-3 system, these are sent to the AV decoder 23.

The AV decoder 23 uses the MPEG system or AC
This is for executing a decoding process according to a predetermined decoding method such as the -3 method. AV decoder 23
Sends the audio data obtained by executing the decoding process to the second switch 25. Also, AV
The decoder 23 outputs the video signal obtained by executing the decoding process to the fourth and fifth switches 85 and 8 included in the audio-video output processing unit 44 of the navigation device 2.
Send to 6. Here, the AV decoder 23 may send a 5.1-channel surround stream obtained by decoding AC-3 digital data to an external output terminal or the like and output the stream.

The second RAM 24 is a rewritable semiconductor memory for temporarily storing data when the AV decoder 23 executes a decoding process.

The second switch 25 is used to control the CD among the data reproduced by the DSP 20 executing the signal processing.
-Receive DA system audio data. Further, the second switch 25 receives audio data obtained by the AV decoder 23 executing a decoding process.
The second switch 25 selects one of the audio data received from the DSP 20 and the audio data received from the AV decoder 23, for example, under the control of the operation control processing unit 12, and the audio-video output processing unit 44 of the navigation device 2 To the DAC 80.

The operation control processing unit 12 shown in FIG. 1 includes, for example, a CPU (Central Processing Unit) 31 interconnected via a bus 30 as shown in FIG.
RAM 32 and first ROM (Read Only Memory) 3
3 is provided.

The CPU 31 controls the operation of the recording carrier reproducing apparatus 1 as a whole. For example, CPU
The reference numeral 31 controls the operation by transmitting a control signal to the DSP 20 included in the reproduction signal processing unit 11 to execute a signal process for demodulating a data signal. CPU3
1 controls the operation by sending a control signal to the AV decoder 23 included in the reproduction signal processing unit 11 so as to execute a decoding process according to a decoding method of data read from the external recording carrier 4. Further, the CPU 31 sends a control signal to the carrier reproduction processing unit 10 to control an operation of reading data from the external recording carrier 4. Further, the CPU 31
Sends a control signal to the input / output control unit 41 provided in the navigation device 2 to enable transfer to the navigation device 2 when the navigation data is read from the external recording carrier 4. In addition, the CPU 31 receives a control signal from the input / output control unit 41, and executes processing such as start, end, pause, and specification of read data from the external recording medium 4.

The third RAM 32 is a rewritable semiconductor memory for temporarily storing programs and data used for the processing of the CPU 31.

The first ROM 33 is a read-only semiconductor memory in which a processing program executed by the CPU 31 and fixed data are recorded.

The built-in recording unit 13 shown in FIG. 1 is constituted by using a magnetic disk recording device such as a hard disk drive (HDD), and stores data such as navigation data read from the external recording carrier 4. Is to be recorded. Here, the built-in recording unit 13 has a recording capacity capable of recording data read from the plurality of external recording carriers 4, and enables the navigation device 2 to generate navigation information and the like provided to the user. The built-in recording unit 13 can record information generated when the navigation device 2 provides the user with the navigation information, such as road traffic information and route trajectory information.

The navigation device 2 includes a recording information control processing section 40, an input / output control section 41, and an operation control processing section 42.
, An information input / output unit 43, and an audio / video output processing unit 44, and execute a process for providing navigation information and the like for guiding a route of the vehicle to the user.

As shown in FIG. 4, the recording information control processing unit 40 includes a hard disk controller 51 connected to the bus 3 and a memory interface controller 52, and is mutually connected via the bus 50.

The hard disk controller 51 controls writing and reading of data to and from the built-in recording section 13 provided in the recording medium reproducing apparatus 1, such as an IDE controller. The hard disk controller 51 sends the digital data received from the first switch 22 included in the reproduction signal processing unit 11 of the recording carrier reproduction device 1 via the bus 3 to the operation control processing unit 42 via the input / output control unit 41. Also, the hard disk controller 5
When the operation control processing unit 42 creates management information of data to be recorded in the internal recording unit 13, the operation control processing unit 42 transfers the management information to the internal recording unit 13 included in the recording carrier reproduction device 1 via the bus 3, and The data is recorded together with the data read from.

Memory interface controller 52
Is for controlling writing / reading of data to / from a detachable external memory card 5.

The input / output control section 41 shown in FIG. 1 is for controlling data transfer between each part provided in the navigation device 2. Here, the input / output control unit 41
The hard disk controller 51 included in the recording information control processing unit 40 according to a control signal sent from the CPU 31 included in the operation control processing unit 12 of the recording medium reproducing device 1
Is transmitted to the operation control processing unit 42. That is, the input / output control unit 41 buffers the data such as the navigation data received by the hard disk controller 51 from the bus 3 in the fourth RAM 62 provided in the operation control processing unit 42, and stores the data in the recording carrier reproducing apparatus 1. Management information for recording data in the recording unit 13 can be created. Further, the input / output control unit 41 transfers the management information created by the operation control processing unit 42 to the hard disk controller 51 included in the recording information control processing unit 40 together with the data such as the navigation data, and the recording carrier reproduction device 1 includes The recording is performed by the built-in recording unit 13.

The operation control processing unit 42 includes, for example, as shown in FIG.
1, a fourth RAM 62, and a second ROM 63.

The CPU 61 controls the navigation device 2
This is for controlling the entire operation. Also, CPU
Reference numeral 61 executes processing for recording data read from the external recording carrier 4 by the recording carrier reproducing device 1 in the built-in recording unit 13 provided in the recording carrier reproducing device 1. For example, CP
When navigation data transferred from the hard disk controller 51 included in the recording information control processing unit 40 is buffered in the fourth RAM 62 through the input / output control unit 41, U61 manages management information such as a FAT (File Allocation Table) and a header. Create The CPU 61 transfers the data to which the management information has been added to the hard disk controller 51 through the input / output control unit 41. Further, for example, when providing the navigation information based on the navigation data read from the built-in recording unit 13 by the audio-video output processing unit 44, the CPU 61 controls the operation of the recording carrier reproduction device 1 from CPU provided in processing unit 12
A control signal for temporarily stopping the reproduction of music or the like from the external recording carrier 4 is transmitted to 31. At this time, the CPU 6
1 switches the third switch 82 included in the audio-video output processing unit 44 to output the audio signal generated by the ADPCM-DAC 81 executing the audio signal processing.

The fourth RAM 62 is a rewritable semiconductor memory for temporarily storing programs and data used for the processing of the CPU 61.

The second ROM 63 is a read-only semiconductor memory in which a processing program executed by the CPU 61 and fixed data are recorded.

The information input / output unit 43 is used for the navigation device 2 to acquire various types of information for providing navigation information to the user, and to transfer the information to an external device. For example, the information input / output unit 43
As shown in FIG. 6, GPS (Global Positioning System)
m) Unit 70, vehicle speed pulse generator 71, vibration gyro 72, VICS (Vehicle Information and Co.)
It includes a receiver 73 for a mmunication system, a remote control unit 74, and a modem 75.

The GPS unit 70 calculates the latitude, the time, and the like based on the difference between the arrival times of the satellite radio waves transmitted from a predetermined GPS satellite.
This is for generating position information including longitude, altitude, and the like. The GPS unit 70 converts the generated position information into
The data is supplied to the operation control processing unit 42 through the input / output control unit 41.

The vehicle speed pulse generator 71 outputs a pulse signal proportional to the number of rotations of the wheels by using, for example, a vehicle speed sensor that detects the rotation of the wheels using an electromagnetic pickup or a reed switch. The pulse signal output from the vehicle speed pulse generator 71 is supplied to the operation control processing unit 42 through the input / output control unit 41.

The vibrating gyroscope 72 detects the Coriolis force generated in a direction perpendicular to the vibration direction in accordance with the angular velocity applied to the vibrating object, and specifies the traveling direction of the own vehicle. It is. Vibrating gyro 72
Supplies the information indicating the specified traveling direction of the own vehicle to the operation control processing unit 42 through the input / output control unit 41.

The VICS receiver 73 is for receiving information such as road traffic information through an optical beacon, a radio beacon, or FM data multiplex broadcasting. VIC
The S receiver 73 transmits the received information to the input / output
Is supplied to the operation control processing unit 42 through

The remote control unit 74 is for inputting an instruction from the user, and sends instruction information corresponding to the instruction from the user to the operation control processing unit 42 through the input / output control unit 41.

The modem 75 is for transmitting and receiving information by externally connecting a communication device such as a portable telephone.

The audio / video output processing section 44 shown in FIG. 1 is, for example, as shown in FIG. 7, a DAC (Digital / Analog Con
verter) 80 and ADPCM-DAC (Adaptive Diffe
rencial Pulse Code Modulation-DAC) 81, a third switch 82, a drawing processing circuit 83, and a fifth RAM 8
4, a fourth switch 85, and a fifth switch 86.

The DAC 80 digitizes the audio data received from the second switch 25 provided in the reproduction signal processing unit 11 of the recording carrier reproducing apparatus 1 to generate an audio signal, and sends it to the third switch 82.

The ADPCM-DAC 81 is composed of, for example, an LSI (Large Scale Integration) circuit for speech synthesis and the like, and generates an audio signal as navigation information for audio guidance. That is, ADPCM
-The DAC 81 converts the audio data included in the navigation data read from the built-in recording unit 13 of the recording medium reproducing device 1 by the hard disk controller 51 included in the recording information control processing unit 40 under the control of the operation control processing unit 42,
Received through the input / output control unit 41. ADPCM-DA
The C81 generates an audio signal serving as navigation information, for example, by executing an audio synthesis process according to the received audio data. The ADPCM-DAC 81 sends the generated audio signal to the third switch 82.

The third switch 82 selects one of the audio signal received from the DAC 80 and the audio signal received from the ADPCM-DAC 81, for example, under the control of the operation control processing unit 42. To the speaker 6 for use. Here, the third switch 82 is provided so that the recording carrier reproducing device 1 can set the audio DVD (C
D) during playback of the audio DVD (C) by selecting and outputting the audio signal received from the DAC 80.
Music and the like reproduced from D) can be provided to the user. Further, when the vehicle reaches a predetermined route voice guidance point, the third switch 82 selects and outputs a voice signal received from the ADPCM-DAC 81 according to the control of the operation control processing unit 42. With this, audio DVD
Even when (CD) is being reproduced, navigation information can be provided by voice.

The drawing processing circuit 83 is composed of, for example, an IC (Integrated Circuit) chip having a vector operation circuit, and is for generating a video signal as navigation information for image display. That is, the drawing processing circuit 83 receives the drawing data read by the hard disk controller 51 included in the recording information control processing unit 40 from the built-in recording unit 13 of the recording carrier reproducing device 1 under the control of the operation control processing unit 42. The drawing data is composed of, for example, graphic data for displaying an image indicating a map, a building, a signboard, and the like. The drawing processing circuit 83 executes a three-dimensional graphics drawing process according to the received drawing data, and performs NTSC (National Television Sys- tem).
tem committee) signal and an RGB (Red Green Blue) signal. The drawing processing circuit 83 sends the generated video signal to the fourth and fifth switches 85 and 86.

The fifth RAM 84 buffers the drawing data read by the hard disk controller 51 provided in the recording information control processing unit 40, and
3 is a rewritable semiconductor memory for use in the processing of No. 3.

The fourth switch 85 receives a video signal obtained by the AV decoder 23 included in the reproduction signal processing unit 11 of the recording carrier reproducing apparatus 1 executing a decoding process. Further, the fourth switch 85 is connected to the drawing processing circuit 83.
Receives the generated video signal. The fourth switch 85 is
Video signal received from AV decoder 23 and drawing processing circuit 8
3 is selected under the control of the operation control processing unit 42, for example, and is output to the external monitor 7 for the front seat, for example.

The fifth switch 86 receives a video signal obtained by the AV decoder 23 included in the reproduction signal processing unit 11 of the recording carrier reproducing apparatus 1 executing a decoding process. The fifth switch 86 is connected to the drawing processing circuit 83.
Receives the generated video signal. The fifth switch 86
Video signal received from AV decoder 23 and drawing processing circuit 8
3 is selected under the control of, for example, the operation control processing unit 42, and is output to, for example, an externally mounted monitor 8 for the rear seat.

The operation of the navigation system according to the embodiment of the present invention will be described below. This navigation system can easily handle a large amount of information by a simple operation by enabling the information read from the external record carrier 4 to be recorded in the built-in recording unit 13 provided in the record carrier reproducing device 1.
This is a system that can be appropriately provided to users.

In order to record the information read from the external recording carrier 4 in the built-in recording unit 13, the user needs to use the external recording carrier 4.
Is set in the recording carrier reproduction device 1 and the carrier reproduction processing unit 10
Read-out is enabled. Next, the user starts the recording operation to the built-in recording unit 13 by, for example, pressing an install button (not shown) provided on the remote control unit 74 provided in the information input / output unit 43 of the navigation device 2. To instruct.

When an instruction to start a recording operation is input from the remote control unit 74 to the input / output control unit 41 of the navigation device 2, the input / output control unit 41 controls the CPU 31 of the operation control processing unit 12 of the recording carrier reproducing device 1. Send a signal,
An instruction to start reading data from the external recording carrier 4 is given. The CPU 31 controls the operation of the carrier reproduction processing unit 10 according to the control signal received from the input / output control unit 41, and causes the information signal to be read from the external recording carrier 4. The carrier reproduction processing unit 10 sends the information signal read from the external recording carrier 4 to the DSP 20 included in the reproduction signal processing unit 11.

The DSP 20 performs signal processing such as demodulation and error correction of the information signal sent from the carrier reproduction processing unit 10 to reproduce, for example, data indicating navigation information, and transmits the data to the bus via the first switch 22. Output to 3.

The data output to the bus 3 is transferred to a hard disk controller 51 provided in the recording information control processing section 40 of the navigation device 2. The hard disk controller 51 sends the data received from the bus 3 to the input / output control unit 41. The input / output control unit 41 buffers data received from the hard disk controller 51 in the fourth RAM 62 provided in the operation control processing unit 42.

CPU 61 provided in operation control processing unit 42
Indicates that the data read from the external record carrier 4 is the fourth R
When buffered in the AM 62, a process for recording this in the built-in recording unit 13 provided in the recording carrier reproducing device 1 is executed. That is, the CPU 61 sets the fourth RAM 6
The management information such as the FAT and header of the data recorded in the storage device 2 is created and supplied to the hard disk controller 51 through the input / output control unit 41. Thereby, the format of the data read from the external recording medium 4 can be adjusted to be a format for recording in the internal recording unit 13.

For example, in a DVD-ROM applicable as the external recording carrier 4, data is recorded from the inner peripheral side to the outer peripheral side in a structure as illustrated in FIG. That is, in a volume space serving as a data area in a DVD-ROM, a logical sector number (LSN: Logical Sector Number) is set in units of 2048-byte sectors.
Is assigned. Also, UDF (Univ.
ersal DiscFormat) file structure and file data
Recorded in one partition of DVD-ROM,
It is defined as a UDF logical volume space. In the UDF logical volume space, logical block numbers (LBN; Logical Block
Number).

The recording medium reproducing apparatus 1 is provided with a UDF shown in FIG.
The data read from the logical volume space is transferred to the navigation device 2 and the C
Causes the PU 61 to create management information. The CPU 61 controls the hard disk controller 51 included in the recording information control processing unit 40 to record the data read from the UDF logical volume space shown in FIG. Here, the built-in recording unit 1
In the case where 3 is a magnetic disk recording device (HDD), the hard disk controller 51 records data read from the external recording carrier 4 in order from the outer peripheral side of the disk, and is recorded on the external recording carrier 4. The entire navigation data can be recorded. Also, the hard disk controller 5
Reference numeral 1 denotes a disk-like built-in recording unit 1 shown in FIG.
3 is recorded in the management information recording area 101 provided in the innermost peripheral portion.

The built-in recording unit 13 has a recording capacity enough to record data read from a plurality of external recording media 4. Therefore, the built-in recording unit 13 forms a plurality of data recording areas 100 as shown in FIG. 9 by sequentially recording data read from the plurality of external recording carriers 4 from the outer peripheral side. Here, in each data recording area 100, data such as navigation data read from one external recording medium 4 is recorded. Also, the management information recording area 101
The FAT that indicates the start position and the end position of each data recording area 100 is recorded therein, so that the data recorded in the built-in recording unit 13 can be managed.

When the external record carrier 4 is a CD-ROM, the record carrier reproducing apparatus 1 uses the CD-ROM shown in FIG.
The data corresponding to the ROM file structure and the file data is read and transferred to the navigation device 2, the CPU 61 of the operation control processing unit 42 creates management information, and then records it in the built-in recording unit 13.

By recording data such as navigation data read from the external recording carrier 4 in the built-in recording section 13 in this manner, navigation information can be provided without setting the external recording carrier 4 in the recording carrier reproducing device 1. This makes it possible to easily handle a large amount of information with simple operations. That is, for example, even when the navigation data is recorded over a plurality of DVD-ROMs, the navigation data is recorded in the built-in recording unit 13 so that the navigation can be performed without replacing the external recording medium 4. Information can be provided.

When the road information, the traffic regulation information, the interchange information, the information indicating the landmark of the intersection, and the like are updated in accordance with the actual road change situation,
Only the update data, which is the changed portion, is recorded on the external recording carrier 4 as a patch file and distributed. The user sets the external record carrier 4 on which the data for update is recorded in the record carrier reproducing device 1 and instructs to update the data by, for example, pressing an install button provided on the remote control unit 74. .

The input / output control unit 41 of the navigation device 2 is controlled by the CPU of the operation control processing unit 12 of the recording medium reproducing device 1 in accordance with an instruction from the remote control unit 74.
A control signal is sent to 31 to instruct the start of reading data from the external recording carrier 4. The CPU 31 controls the operation of the carrier reproduction processing unit 10 according to the control signal received from the input / output control unit 41, and causes the information signal to be read from the external recording carrier 4. The carrier reproduction processing unit 10 converts the information signal read from the external recording carrier 4 into a DSP provided in the reproduction signal processing unit 11.
Send to 20.

The DSP 20 executes signal processing such as demodulation and error correction of the information signal sent from the carrier reproduction processing unit 10 and outputs the reproduced data to the bus 3 via the first switch 22.

The hard disk controller 51 included in the recording information control processing unit 40 of the navigation device 2 sends the data sent from the recording carrier reproducing device 1 via the bus 3 to the input / output control unit 41. The input / output control unit 41 buffers data received from the hard disk controller 51 in the fourth RAM 62 provided in the operation control processing unit 42.

CPU 61 provided in operation control processing unit 42
Executes a process for recording the data buffered in the fourth RAM 62 in the built-in recording unit 13 provided in the recording medium reproducing apparatus 1, and creates management information such as a FAT and a header.

The hard disk controller 51 provided in the recording information control processing section 40 receives data supplied from the CPU 61, outputs the data to the bus 3, and outputs the data to the recording carrier reproducing apparatus 1.
Is recorded in the built-in recording unit 13 provided in the computer. At this time, the hard disk controller 51 can update the navigation data indicating road information and the like by overwriting the data already recorded in the built-in recording unit 13 with new data. As a result, new road information can be distributed using a cheaper carrier such as a CD-ROM, and the time and cost required for production can be reduced and a large amount of information can be easily handled.

Further, the information input / output unit 4
Alternatively, data indicating the road traffic information or the like received by the VICS receiver 73 included in the remote controller 3 or data indicating the path of the route specified by the remote control unit 74 may be recorded. In this case, the hard disk controller 51
Transfers these data to the built-in recording unit 13 of the recording carrier reproducing apparatus 1 via the bus 3 and stores the data recording area provided adjacent to the inner peripheral side of the data recording area 100 in which the navigation data is recorded. Make 100 record.

By recording data such as navigation data in the built-in recording unit 13 in this manner, navigation information can be provided while reproducing the external recording carrier 4 on which music, video images, and the like are recorded.

For example, when reproducing a DVD on which audio data such as music is recorded by the MPEG system as the external recording carrier 4, the carrier reproduction processing unit 1 of the recording carrier reproducing apparatus 1
“0” sends the information signal read from the external recording carrier 4 to the DSP 20 included in the reproduction signal processing unit 11.

The DSP 20 performs signal processing such as demodulation and error correction of the information signal sent from the carrier reproduction processing unit 10 and converts the reproduced MPEG audio data to the first signal.
To the AV decoder 23 via the switch 22.

The AV decoder 23 executes a decoding process according to the MPEG system, and sends the obtained audio data to the second switch 25. The second switch 25
Select the audio data received from the V decoder 23,
The data is sent to the DAC 80 included in the audio-video output processing unit 44 of the navigation device 2.

The DAC 80 generates an analog audio signal from the audio data sent from the recording carrier reproducing apparatus 1 and sends it to the third switch 82. Third switch 82
Selects the audio signal sent from the DAC 80, for example, connects the external recording carrier 4 to the external speaker 6.
, Etc., can be output.

At this time, the CPU 61 included in the operation control processing unit 42 of the navigation device 2 transmits the GPS unit 70 included in the information input / output unit 43 through the input / output control unit 41.
Receives position information indicating the current position of the vehicle. Also,
The CPU 61 receives a pulse signal from the vehicle speed pulse generator 71 provided in the information input / output unit 43, and receives information indicating the traveling direction of the own vehicle from the vibration gyro 72.

When the current position, the traveling direction, the traveling speed, etc. of the own vehicle are specified in this way, the CPU 61 controls the hard disk controller 51 provided in the recording information control processing section 40 to control the built-in recording section 13 of the recording carrier reproducing apparatus 1. The navigation data is read out from the device and transmitted to the drawing processing circuit 83 provided in the audio / video output processing unit 44.

The drawing processing circuit 83 executes a three-dimensional graphics drawing process or the like according to the data transferred from the hard disk controller 51, and generates a video signal as navigation information for image display. Drawing processing circuit 8
3 is a fourth and fifth switch 8 for outputting the generated video signal.
Send to 5,86.

The fourth and fifth switches 85 and 86 select the video signal sent from the drawing processing circuit 83, respectively, and provide navigation information such as map information to the external monitors 7 and 8, for example. The displayed image can be displayed.

When providing navigation information for voice guidance, the CPU 61 controls the hard disk controller 51 to read data read from the built-in recording unit 13 through the input / output control unit 41 to the ADPCM-DA.
C81, and a voice signal for voice guidance is generated by voice synthesis processing or the like. The ADPCM-DAC 81 sends the generated audio signal to the third switch 82.

Here, the CP provided in the operation control processing unit 42
U61 sends a control signal from the input / output control unit 41 to the CPU 31 provided in the operation control processing unit 12 of the recording carrier reproducing device 1 immediately before outputting the audio signal for voice guidance, and reproduces the external recording carrier 4. Pause. After that, the CPU 61
Causes the third switch 82 to preferentially select the audio signal sent from the ADPCM-DAC 81, and to output, for example, an external speaker 6 with audio serving as navigation information for notifying the traveling direction, for example. Can be.

When the output of the voice as the navigation information is completed, the CPU 61
A control signal is sent to 31 to restart the reproduction of the external recording carrier 4 which has been temporarily stopped. In addition, the CPU 61 causes the third switch 82 to select the audio signal sent from the DAC 80 and output the audio such as music reproduced from the external recording carrier 4.

When reproducing a DVD on which video data such as a video image is recorded by the MPEG system as the external recording carrier 4, the carrier reproduction processing unit 1 of the recording carrier reproducing apparatus 1
The information signal read by 0 is sent to the DSP 20 included in the reproduction signal processing unit 11 to reproduce the video data. The reproduced video data is transmitted to the AV switch via the first switch 22.
The data is sent to the decoder 23.

The AV decoder 23 executes a decoding process according to the MPEG system, and outputs the obtained video signal to the fourth and fifth switches 85 and 8 of the navigation device 2.
Send to 6.

The fourth and fifth switches 85 and 86 switch either the video signal received from the drawing processing circuit 83 or the video signal received from the AV decoder 23 under the control of the CPU 61 of the operation control processing section 42, for example. And outputs them to, for example, externally attached monitors 7 and 8, respectively. At this time, the fifth switch 86 always keeps the AV decoder 23
If the video signal transmitted from the external recording carrier 4 is selected, the video reproduced from the external recording carrier 4 can be continuously displayed on the monitor 8 externally attached for the rear seat. Alternatively, the fifth switch 86 may select a video signal received from the drawing processing circuit 83 and output the selected video signal to the monitor 8 to display an image serving as navigation information, for example, by a user's switching operation.

The CPU 61 determines whether or not the own vehicle is stopped based on the pulse signal received from the vehicle speed pulse generator 71 provided in the information input / output unit 43, and determines that the vehicle is stopped. Only when the fourth switch 85
The video signal sent from the decoder 23 is selected. That is, when the vehicle speed pulse generator 71 generates a pulse signal indicating the stop of the vehicle, the fourth switch 85 selects the video signal sent from the AV decoder 23 and outputs the video signal to the monitor 7. On the other hand, when the vehicle speed pulse generator 71 generates a pulse signal indicating the movement of the own vehicle, the fourth switch 85 selects the video signal received from the drawing processing circuit 83 and outputs it to the monitor 7. As a result, the video reproduced from the external recording carrier 4 can be output to the monitor 7 externally attached for the front seat only when the vehicle is stopped.

As described above, according to the present invention,
Data such as navigation data read from the external recording carrier 4 can be recorded in the built-in recording unit 13 in advance. As a result, even when the navigation data is recorded across a plurality of external record carriers 4, all the navigation information can be provided without replacing the external record carriers 4, and a large amount of information can be provided by a simple operation. Can be easily handled.

The navigation information can be provided while reproducing the external recording carrier 4 on which audio data such as music and video data such as video images are recorded.

The present invention is not limited to the above embodiment, and various modifications and applications are possible. For example, the built-in recording unit 13 may record data other than the navigation data read from the external recording carrier 4 and the data indicating the road traffic information. That is, for example, the memory interface controller 52 included in the recording information control processing unit 40 of the navigation device 2 transfers the data read from the removable memory card 5 to the hard disk controller 51, and the internal recording unit of the recording carrier reproducing device 1 1
3 may be recorded. Alternatively, the received data may be recorded by attaching a mobile phone to the modem 75 provided in the information input / output unit 43.

As shown in FIG. 10, a bus interface 76 compatible with, for example, the USB (Universal Serial Bus) system is provided in the information input / output unit 43, and a digital still camera is connected to the bus interface 76 to convert a still image. The image data shown may be fetched and recorded in the built-in recording unit 13. The data captured at this time is stored in the built-in recording unit 1.
3. Data recording area 10 in which data has already been recorded
0 is recorded in a data recording area 100 provided adjacent to the inner circumference side of the data recording area. When reproducing and outputting a still image from the image data recorded in the built-in recording unit 13, the operation control processing unit 42
CPU 61 included in the hard disk controller 5
1 to perform processing for expanding the image data read, and send the image data to the drawing processing circuit 83 included in the audio / video output processing unit 44. Thereby, the compressed image data is decompressed (decompressed). The drawing processing circuit 83 generates a video signal according to the image data, and outputs the fourth and fifth switches 8.
5 and 86 to enable output to the monitors 7 and 8.

Here, the CP provided in the operation control processing unit 42
U61 communicates with the information input / output unit 43 through the input / output control unit 41.
By controlling the modem 75 provided in the monitor 7, the monitor 7,
The still image output to 8 may be output to an externally attached mobile phone or the like and transmitted to the outside.

The built-in recording unit 13 records navigation data for providing navigation information in advance at the time of factory shipment or the like, and stores only new navigation data indicating road information to be updated on a CD-ROM or the like. May be recorded on the external recording carrier 4 and distributed, and the data recorded in the internal recording unit 13 may be updated.

Further, the navigation device 2 may generate and provide navigation information directly from the data read from the external recording carrier 4 by the recording carrier reproducing device 1.

[0107] In this case, the C
The PU 61 controls the hard disk controller 51 included in the recording information control processing unit 40 to transfer the data transmitted from the recording carrier reproducing device 1 via the bus 3 to the audio / video output processing unit 44. That is, the navigation data for voice guidance sent from the recording carrier reproduction device 1 is transmitted to the ADP provided in the audio / video output processing unit 44 through the input / output control unit 41.
The data is transferred to the CM-DAC 81. Further, the navigation data for image display sent from the recording carrier reproducing device 1 is transferred to the drawing processing circuit 83 provided in the audio / video output processing unit 44.

In this way, the ADPCM-DAC 81 generates a voice signal for voice guidance from the navigation data for voice guidance sent from the recording carrier reproducing apparatus 1, and outputs the third switch 8
2 to enable output. The drawing processing circuit 83
Generates a video signal for image display from the navigation data for image display sent from the recording carrier reproducing device 1 and supplies the video signal to the fourth and fifth switches 85 and 86 so that the video signal can be output. Thus, even when the navigation data cannot be read from the built-in recording unit 13, the navigation information can be provided by reading the navigation data from the external recording carrier 4.

[0109]

As described above, according to the present invention, data read from an external recording carrier is recorded in a built-in recording unit, and navigation information is generated from the data read from the recording unit. Can be provided to the user. As a result, a large amount of information can be provided without replacing the external recording medium, and a large amount of information can be easily handled with a simple operation and appropriately provided to the user.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a configuration of a navigation system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a reproduction signal processing unit.

FIG. 3 is a diagram illustrating a configuration of an operation control processing unit provided in the recording medium reproducing device.

FIG. 4 is a diagram illustrating a configuration of a recording information control processing unit.

FIG. 5 is a diagram illustrating a configuration of an operation control processing unit provided in the navigation device.

FIG. 6 is a diagram illustrating a configuration of an information input / output unit.

FIG. 7 is a diagram showing a configuration of an audio-video output processing unit.

FIG. 8 is a diagram illustrating a structure of data recorded on a DVD-ROM.

FIG. 9 is a diagram illustrating a recording area provided in a built-in recording unit.

FIG. 10 is a diagram showing a configuration of an information input / output unit in a modification of the navigation system according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 record carrier reproduction device 2 navigation device 3, 30, 50, 60 bus 4 external record carrier 5 memory card 6 speaker 7, 8 monitor 10 carrier reproduction processing unit 11 reproduction signal processing unit 12, 42 operation control processing unit 13 Built-in recording unit 20 DSP 21, 24, 32, 62, 84 RAM 22, 22, 82, 85, 86 Switch 23 AV decoder 31, 61 CPU 33, 63 ROM 40 Recording information control processing unit 41 Input / output control unit 43 Information input Output unit 44 Audio / video output processing unit 51 Hard disk controller 52 Memory interface controller 70 GPS unit 71 Vehicle speed pulse generator 72 Vibration gyro 73 VICS receiver 74 Remote control unit 75 Modem 80 DAC 81 ADPCM-DAC 83 Drawing processing circuit

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2C032 HB02 HB22 HB23 HB24 HB25 HC01 HC02 HC05 HC08 HC15 HC31 HD03 2F029 AA02 AB01 AB07 AC02 AC04 AC14 AC18 5B049 BB31 CC02 DD01 DD05 EE01 EE07 FF03 FF04 FF06 FF07 FF09 FF09 BB13 EE18 FF04 FF05 FF12 FF13 FF25 FF27

Claims (15)

[Claims] 1. A navigation system mounted on a mobile body for providing navigation information for guiding a route, comprising setting an external record carrier and reading data recorded on the external record carrier. Carrier data reading means, built-in recording means for recording data read by the carrier data reading means, position information obtaining means for obtaining position information indicating a current position of a moving object, and the built-in recording means Navigation information generating and outputting means for generating and outputting navigation information based on the recorded data; and when the position information acquiring means acquires the position information, the data recorded in the built-in recording means generates the navigation information. A navigation system comprising control processing means for generating navigation information by transferring to an output means. 2. The control processing means creates management information for recording the data read by the carrier data reading means in the built-in recording means, and the management information is read by the carrier data reading means. The navigation system according to claim 1, wherein the data is recorded in the built-in recording means together with data. 3. The control processing means, wherein the carrier data reading means reads update data from an external recording carrier,
2. The management information for recording update data in the built-in recording means, and updating the data already recorded in the built-in recording means by overwriting the data with new data. Or the navigation system according to 2. 4. The internal recording means has a recording capacity capable of recording data read from a plurality of external recording carriers by the carrier data reading means, and each of the external recording means read by the carrier data reading means. 4. The navigation system according to claim 1, wherein a plurality of recording areas corresponding to the carrier are provided to record data. 5. The control processing means according to claim 1, further comprising: when recording the data read by said carrier data reading means in said built-in recording means, a start position and an end position of each recording area provided in said built-in recording means. 5. The navigation system according to claim 4, wherein management information indicating the following is created and recorded in the built-in recording unit together with the data read by the carrier data reading unit. 6. 6. The apparatus according to claim 1, wherein said built-in recording means has a recording area for recording data other than the data read by said carrier data reading means. Navigation system as described. 7. The carrier data reading means includes signal reproducing means for reproducing at least one of a first audio signal and a first video signal from data read from an external recording carrier; An information generation and output unit configured to generate a second audio signal serving as navigation information from the data read from the internal recording unit; and to provide navigation information from the data read from the internal recording unit. Navigation video generation means for generating a second video signal to be a first audio signal reproduced by the signal reproduction means,
First selecting means for selecting and outputting any one of the second audio signals generated by the navigation sound generating means; first video signal reproduced by the signal reproducing means;
7. The apparatus according to claim 1, further comprising: a second selection unit configured to select and output any one of the second video signals generated by the navigation video generation unit. 8. Navigation system. 8. The first selecting means selects and outputs the first audio signal reproduced by the signal reproducing means when the signal reproducing means reproduces the first audio signal. ,
A second step in which the navigation voice generating means serves as navigation information;
The navigation system according to claim 7, wherein when the audio signal is generated, the second audio signal generated by the navigation audio generation unit is preferentially selected and output. 9. The control data processing apparatus according to claim 1, wherein the first selection means selects and outputs the second audio signal generated by the navigation audio generation means, and the carrier data reading means outputs the external recording signal. The navigation system according to claim 8, wherein an operation of reading data from the carrier is temporarily stopped. 10. When the output of the second voice signal generated by the navigation voice generating means is completed, the control processing means restarts the operation of reading the data from the external recording carrier by the carrier data reading means. When the output of the second audio signal generated by the navigation audio generation means ends, the first selection means selects and outputs the first audio signal reproduced by the signal reproduction means. The navigation system according to claim 9, wherein: 11. A stop detecting means for detecting a stop of movement of a moving body, wherein the second selecting means includes a signal reproducing means for reproducing a first video signal and a navigation video generating means for detecting a second video signal. When the video signal is being generated, if the stop detection means detects the movement stop of the moving object, the first video signal reproduced by the signal reproduction means is selected and output, and the stop detection means The second video signal generated by the navigation video generation unit is selected and output when the stop of the movement of the moving object is not detected, The second video signal is selected and output. Navigation system. 12. The navigation information generating and outputting means according to claim 1, wherein said navigation information generating and outputting means generates and outputs navigation information from the data read by said carrier data reading means. The navigation system according to 1. 13. The navigation system according to claim 1, wherein said built-in recording means is a hard disk drive. 14. The data read from the external record carrier,
Recording to a built-in recording device and acquiring position information indicating the current position, generating and outputting navigation information for guiding a route from data read from the built-in recording device, Navigation system. 15. The data read from the external record carrier,
Recording to a built-in recording device and acquiring position information indicating the current position, generating and outputting navigation information for guiding a route from data read from the built-in recording device, To provide navigation information.