JP2010112762A - Navigation apparatus, and method for music playback of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus and a method for music playback of the navigation apparatus which reduce discomfort given to a user on the occasion of transmitting necessary information to the user listening to music. <P>SOLUTION: The navigation apparatus includes, in its constitution, a first receiving part which receives road traffic information every fixed time, a second receiving part which receives the road traffic information from a terminal provided on a guiding route and transmitting the road traffic information, by a vehicle passing through a transmission range of the terminal, a selecting means which makes selection of the receiving part receiving the road traffic information according to which the navigation apparatus gives guidance with a voice, between the first and second receiving parts, in accordance with predetermined priority, a calculation means which calculates information reception time when the receiving part selected by the selecting means receives the road traffic information, and a playback list preparing means which prepares a playback list by combining music data so that playback of the music is completed at the information reception time calculated by the calculation means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device and a music playback method for the navigation device.

Conventionally, a navigation device having a voice guidance function that gives a driver driving information such as a route to a destination by voice or the like provides voice guidance even while music is being reproduced. There was a case where the user was uncomfortable and the route information could not be correctly transmitted to the user. Therefore, as in Patent Documents 1 to 3, a navigation device has been developed that reliably performs voice guidance while avoiding interruption of music appreciation by the user.
Recently, an increasing number of navigation devices acquire road traffic information such as traffic jam information and accident information and transmit road traffic information to users as well as route guidance. Such a navigation device acquires road traffic information and provides voice guidance when a vehicle arrives at a point where road traffic information can be acquired. Therefore, when music is played back when road traffic information is acquired, the voice guidance and the music being played are overlapped and output. For this reason, there is a problem that the user who is listening to music is uncomfortable and road traffic information is not correctly transmitted to the user. Therefore, in Patent Document 4, the acquired road traffic information is accumulated, and the road traffic information accumulated between music interludes and songs is output, thereby reducing the user's discomfort and allowing the user to It conveys the contents of road traffic information.
JP 2007-256047 A JP 2005-172450 A JP 2004-108908 A JP 2004-117176 A

  However, in the navigation device described in Patent Document 4, road traffic information, such as accident information, which is highly required by the user is not output until the music interlude part or between songs. Lee can not get.

  The present invention has been made in view of the above circumstances, and a navigation device that reduces the discomfort given to a user when transmitting necessary information to a user who is listening to music, and music of the navigation device An object is to provide a reproduction method.

The invention according to claim 1 is a navigation device that guides traveling according to a guidance route to a destination by display on a screen, and receives road traffic information transmitted at regular intervals using broadcast radio waves. A first receiving unit, a second receiving unit installed on the guidance route, for receiving road traffic information from the terminal when a vehicle passes through a transmission range of the terminal for transmitting road traffic information, and the navigation Selection means for selecting a receiving section for receiving road traffic information guided by the device between the first receiving section and the second receiving section in accordance with a predetermined priority, and reception selected by the selecting section A calculation means for calculating information reception time when the section receives road traffic information, and a playlist combining music data so that music playback ends at the information reception time calculated by the calculation means To adopt a configuration and a play list creation means.
According to this configuration, the reproduction of the music based on the reproduction list is completed at the time when the reception unit selected by the selection unit receives the road traffic information. Since the received road traffic information can be voice-guided, user discomfort can be reduced when the road traffic information is transmitted to the user. Furthermore, since the selection means selects a receiving unit that receives road traffic information according to a predetermined priority, road traffic information with high priority to be transmitted to the user who is listening to music can be transmitted to the user. .

In the above navigation device, the calculation means recalculates the information reception time when the reception unit selected by the selection means receives road traffic information, and the reproduction list creation means re-calculates the recalculated information reception time. When the information reception time before the calculation is different, the reproduction list is changed so that the music reproduction ends at the recalculated information reception time.
According to this configuration, even when there is a change in the time at which the receiving unit receives the road traffic information, the playlist is changed, and the music playback based on the playlist ends at the time when the receiving unit receives the road traffic information. By doing so, the navigation device can provide voice guidance for the road traffic information received by the receiver without overlapping with the music playback. Therefore, when the road traffic information is transmitted to the user who is listening to the music, Pleasure can be reduced.

In the above navigation apparatus, when the playlist creating means creates a playlist using all music data of one music, the time when music playback ends is later than the information reception time calculated by the calculating means. The reproduction list is created by using a part of music data of one music so that the reproduction ends at the information reception time.
According to this configuration, music playback based on the playlist can be continued until the information reception time, and the music playback is terminated at the information reception time. When transmitting, a user's discomfort can be reduced.

In the above navigation device, the road traffic information received by the first receiver is road traffic information that is transmitted within a certain time over the same content multiple times.
When the selection means selects the first reception unit as a reception unit that receives the road traffic information guided by voice of the navigation device, the calculation unit is configured to transmit the road traffic information of the same content transmitted multiple times. The first receiving unit calculates an information reception time at which road traffic information is received, and the reproduction list creating means performs music at one of the plurality of information reception times calculated by the calculating means. Alternatively, a playback list is created so that video playback ends, and the first reception unit receives road traffic information at a time when playback of music based on the playback list ends.
According to this configuration, the music reproduction ends at the time when one road traffic information is received from the same road traffic information transmitted a plurality of times, so that the navigation device receives the music without overlapping the music reproduction. Since the road traffic information received by the unit can be voice-guided, discomfort of the user can be reduced when the road traffic information is transmitted to the user who is listening to music.

According to a fifth aspect of the present invention, there is provided a first receiving unit that receives road traffic information transmitted every predetermined time using broadcast radio waves, and a transmission range of a terminal that is installed on the guide route and transmits road traffic information And a second receiving unit that receives road traffic information from the terminal when the vehicle passes, and a method for reproducing music in a navigation device that guides driving according to a guidance route to a destination by display on a screen A selection step of selecting a reception unit for receiving road traffic information guided by voice by the navigation device between the first reception unit and the second reception unit according to a predetermined priority; A calculation step of calculating an information reception time at which the receiving unit selected by the selection step receives road traffic information; and music so that music reproduction ends at the information reception time calculated by the calculation means Characterized in that it comprises a play list creating step of creating a playlist that combines over data.
According to this configuration, the playback of the music based on the playlist is completed at the time when the receiving unit selected in the selection step receives the road traffic information. Since the received road traffic information can be voice-guided, user discomfort can be reduced when the road traffic information is transmitted to a user who is listening to music. Furthermore, since the selection step selects a receiving unit that receives road traffic information according to a predetermined priority, road traffic information with high priority to be transmitted to the user can be transmitted to the user.

  ADVANTAGE OF THE INVENTION According to this invention, in the navigation apparatus which performs guidance control to the destination, when transmitting necessary information to the user who listens to music, the discomfort given to the user can be reduced.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram showing an example of a system configuration of a navigation apparatus according to the present invention. The navigation device includes an in-vehicle device 100, a display 10, a speaker 11, a telephone 12, an operation unit 13, a GPS (Global Positioning System) receiver 40, a vehicle speed sensor 50, and a road traffic information receiver 60 connected to the in-vehicle device 100, respectively. And.
The in-vehicle device 100 includes a control unit 20 and a storage unit 30. The road traffic information receiver 60 is installed on the road with an FM multiplex broadcast receiver 61 (first receiving unit) that receives road traffic information transmitted using FM multiplex broadcast at regular intervals. An optical beacon receiver 62 (second receiver) that receives road traffic information from a terminal (beacon) and a radio beacon receiver 63 (second receiver) are provided. In the present embodiment, it is assumed that the road traffic information transmitted from the beacon includes interrupt information with a high degree of urgency transmitted to the driver, such as accident information. In this embodiment, the road traffic information transmitted at regular intervals is transmitted using FM multiplex broadcasting. However, road traffic information transmitted using other transmission means may be used. Furthermore, the terminals installed on the road are not limited to optical beacons or radio beacons.
The device connected to the in-vehicle device 100 is not limited to the present embodiment, and for example, a device capable of reproducing an information recording medium such as MD, CD, and DVD can be connected to the in-vehicle device 100. is there.

The operation unit 13 receives operation inputs from the driver and the passenger and outputs a signal indicating the type of operation to the control unit 20. The operation accepted by the operation unit 13 is, for example, setting a destination, playing / stopping music, and the like.
The telephone 12 is, for example, a mobile phone, and the navigation to the destination can be started by acquiring information on the destination with a mobile phone connected to the Internet and transmitting the information to the control unit 20. It is also possible to transmit the current location information received from the GPS receiver 40 to the telephone set 12 by the control unit 20.
The storage unit 30 stores map information, beacon installation location information, music data, and the like, which is data that summarizes points where beacons are installed, and further adds / changes map information, music data, and the like. Can be added. As the storage unit 30, in addition to a hard disk, a memory card, a USB memory, or the like can be used.
The GPS receiver 40 receives information from a GPS artificial satellite, acquires time information, and specifies position information of the host vehicle. Further, the GPS receiver 40 outputs the identified position of the host vehicle to the control unit 20.
The control unit 20 outputs to the display 10 and the speaker 11 based on the operation input received by the operation unit 13. When the operation unit 13 accepts the destination setting, the control unit 20 uses the position of the host vehicle input from the GPS receiver 40 and the map information stored in the storage unit 30 to reach the destination. And the result is displayed on the display 10. In addition, the control unit 20 determines the position to the destination from the position of the host vehicle input from the GPS receiver 40, the distance to the destination obtained from the map information, and the vehicle traveling speed information obtained from the vehicle speed sensor 50. The estimated arrival time can also be calculated and displayed on the display 10. Furthermore, the control unit 20 outputs a sound from the speaker 11 in order to guide the route information such as the traveling direction while guiding the vehicle to the destination.
When the operation unit 13 accepts an operation for instructing music reproduction, the control unit 20 reproduces music data stored in the storage unit 30 and outputs music reproduction sound from the speaker 11. Furthermore, the control unit 20 inputs the road traffic information received by the road traffic information receiver 60 from the road traffic information receiver 60, and in order to guide the road traffic information that needs to be transmitted to the driver by voice, Information is output to the speaker 11.

FIG. 2 is a diagram illustrating an example of a hardware configuration of the control unit 20.
The control unit 20 includes an input / output unit 24 that inputs and outputs signals, a ROM 23 that stores a program (details will be described later) for creating a playlist that defines the order in which music is played back, and a program that is stored in the ROM 23. A central processing unit (CPU) 21 that reads and executes the program and a RAM 22 that stores temporary data used when the program is executed.
Further, calculation means 201, list creation means 202, and selection means 205 shown in FIG. 3 are configured by calculation by the CPU 21 of the program stored in the ROM 23.

FIG. 3 is an example of a functional block diagram of the control unit 20 realized by the cooperation of the above-described hardware such as the CPU 21 and software stored in the ROM 23.
The control unit 20 includes an audio processing unit 25 that selects music data and reproduces music data, and a navigation processing unit 26 that performs processing for guiding the vehicle to a destination. The audio processing unit 25 includes list creation means 202 and playback means 203. The navigation processing unit 26 includes a calculation unit 201, a selection unit 205, and an output unit 204.

First, each unit included in the navigation processing unit 26 will be described.
The selection means 205 includes an FM multiplex broadcast receiver 61, an optical beacon receiver 62, a radio beacon receiver 63, a beacon installation location information 302 stored in the storage unit 30, and a GPS. The receiver 40, the list creation unit 202, the output unit 204, and the calculation unit 201 are connected. The selection unit 205 inputs the position of the host vehicle from the GPS receiver 40 and combines it with the beacon installation location information 302 so that the vehicle is in the area where the beacon is installed, and the selection unit 205 is installed on the road. It is determined whether road traffic information can be acquired from the received beacon. As described above, the road traffic information transmitted from the beacon includes interrupt information including highly urgent information such as accident information. Therefore, when the road traffic information can be acquired from the beacon, the selection unit 205 preferentially selects the optical beacon receiver 62 or the radio beacon receiver 63 as the acquisition source of the road traffic information for performing voice guidance. In addition, when the road traffic information using FM multiplex broadcasting transmits information with a high degree of urgency, the FM multiplex broadcast receiver 61 may be preferentially selected.
When the road traffic information cannot be acquired from the beacon, the selection unit 205 selects the FM multiplex broadcast receiver 61 as an acquisition source of the road traffic information for performing voice guidance. Further, when the selecting unit 205 selects the FM multiplex broadcast receiver 61, the same contents transmitted a plurality of times within a predetermined time based on the reproduction list indicating the reproduction order of the music data created by the list creating unit 202. The number of times of road traffic information to be voice-guided is selected.
According to this configuration, since the selection unit 205 preferentially selects a receiver that receives road traffic information with a high degree of urgency, road traffic information with a high degree of urgency can be preferentially transmitted to the driver. .
The selection means 205 outputs to the calculation means 201 which receiver is selected as the road traffic information acquisition source. The selection unit 205 acquires road traffic information and outputs it to the output unit 204 when the selected receiver receives the road traffic information. The output unit 204 provides voice guidance of the road traffic information input from the selection unit 205 through the speaker 11 and displays it on the display 10.

The calculation means 201 is connected to the vehicle speed sensor 50, the GPS receiver 40, the map information 303 stored in the storage unit 30, the beacon installation location information 302, the selection means 205, and the list creation means 202.
When the road traffic information source selected by the selection unit 205 is a beacon receiver, the calculation unit 201 is based on the map information 303, the beacon installation location information 302, and the position of the host vehicle input from the GPS receiver 40. Calculate the distance from the current position of the vehicle to the location of the beacon. Next, the estimated time of arrival at the beacon installation location is calculated from the calculated distance to the beacon installation location and the vehicle speed signal indicating the traveling speed of the vehicle input from the vehicle speed sensor 50. The expected time calculated by the calculation means 201 is the time when the selection means 205 receives the road traffic information. The calculation unit 201 outputs the calculated predicted time to the list creation unit 202.

Next, each unit included in the audio processing unit 25 will be described.
The list creation unit 202 is connected to the calculation unit 201, the music data 301 stored in the storage unit 30, the playback unit 203, and the selection unit 205. Here, the music data 301 is stored in the MD, CD and DVD from the music data registered by the user, the music data registered in advance at the time of shipment of the navigation device, and the external playback device connected to the navigation device. Data obtained from the genre of music and the playback time may be used. Further, video data may be stored instead of music data. The list creation unit 202 creates a playback list representing the playback order of music using the music data 301 so that the music playback ends at the expected time input from the calculation unit 201. The reproduction unit 203 outputs the created reproduction list to the reproduction unit 203.
In addition, when the selecting unit 205 selects the FM multiplex broadcast receiver 61 as the road traffic information acquisition source, the list creating unit 202 reproduces music at the timing when the FM multiplex broadcast receiver 61 acquires the road traffic information. Create a playlist so that ends. Then, the list creation unit 202 outputs the reproduction list to the reproduction unit 203 and the selection unit 205. Based on the reproduction list of the list creation unit 202, the selection unit 205 determines how many times the road traffic information is to be voice-guided among the road traffic information having the same content transmitted a plurality of times within a predetermined time. select.

  The reproduction unit 203 is connected to the music data 301, the list creation unit 202, the display 10, and the speaker 11. The reproduction unit 203 reproduces music based on the reproduction list input from the list creation unit 202, and outputs music reproduction sound from the speaker 11. When video data is used instead of music data, the reproduced video is displayed on the display 10 and the reproduced sound is output from the speaker 11. In the present embodiment, the control unit 20 includes a reproducing unit. However, for example, an external reproduction device may perform the reproduction instead of the control unit 20. In addition, although music data is acquired from the music data 301 stored in the storage unit 30 and played back, an information recording medium such as MD, CD, and DVD may be played back directly using an external playback device. .

Next, an example of processing performed by the control unit 20 during navigation will be described with reference to FIGS. 4 to 8 are flowcharts showing an example of processing performed by the control unit 20.
When the calculation unit 201 receives the setting to the destination from the operation unit 13 (step S10), the calculation unit 201 lists the points where the beacons are installed on the guidance route to the destination (step S11). Next, the selecting means 205 obtains the position information of the host vehicle from the map information 303 and the GPS receiver 40 as to whether the point where the vehicle is currently stopped or traveling is the area where the beacon is installed. It confirms using (step S12). The selection means 205 selects the optical beacon receiver 62 or the radio beacon receiver 63 as an acquisition source of road traffic information output by the output means 204 in an area where a beacon is installed. This is because the road traffic information that can be acquired from the beacon is interrupted and notified of information of higher urgency such as accident information than the road traffic information that can be acquired from FM multiplex broadcasting.
According to this step, since the selection unit 205 preferentially selects a receiver that receives road traffic information with a high degree of urgency, road traffic information with a high degree of urgency can be preferentially transmitted to the driver. .
If the current location is an area where a beacon is installed (step S12 / YES), the road traffic information acquisition source is a beacon, and the calculation means 201 arrives at the location where the beacon is installed from the current location. The expected time to calculate is calculated (step S13). Next, the list creating unit 202 uses the music data 301 stored in the storage unit 30 so as to finish the music reproduction at the expected time calculated by the calculating unit 201, and represents a reproduction list representing the music reproduction order. Is created (step S14). The reproducing unit 203 reproduces music based on the reproduction list (step S15).
When the vehicle arrives at the beacon installation point (step S16 / YES), the process proceeds to D in FIG. When the vehicle arrives at the beacon installation point, the selecting unit 205 acquires road traffic information from the optical beacon receiver 62 or the radio beacon receiver 63 (step S24). The output unit 204 outputs the road traffic information acquired by the selection unit 205 (step S25). Here, as described above, the list creating means 202 creates the playlist in step S14 so that the music based on the playlist ends at the time when the vehicle arrives at the beacon installation point. Therefore, when the road traffic information is voice-guided from the speaker 11 by the output means 204, the music playback is completed, and the driver reliably acquires the road traffic information without interrupting the music playback. can do.
When the vehicle has not arrived at the beacon installation point (step S16 / NO), the calculation means 201 receives the GPS signal (step S16 / YES), and re-estimates the estimated time when the vehicle arrives at the point where the beacon is installed. Calculate (step S18). When the calculation unit 201 finishes the process of step S18, the process proceeds to A of FIG.

When the estimated time recalculated by the calculating means 201 is later than the predicted time previously calculated by the calculating means 201 (step S19 / case 1), the list creating means 202 reproduces the last song in the reproduction list. It is confirmed whether or not (step S20). When the reproducing unit 203 is reproducing the last song in the reproduction list (step S20 / YES), the list creating unit 202 satisfies the time from the end of reproduction of the last song to the recalculated estimated time. It is confirmed whether or not music data exists (step S21). If music data exists (step S21 / YES), the list creation means 202 adds the corresponding music data to the reproduction list (step S22). If there is only music data that will cause the playback end time to exceed the expected time when one song is played back, the playback list should be set so that a part of the music data is played when the last song is played back. Change (step S23). Here, the part of the music data is, for example, a rust part. In addition, the music data may be added using music data stored in advance in the storage unit 30 by the user, or music data stored in the storage unit 30 when the navigation device is shipped. When music data stored in the storage unit 30 at the time of shipment is selected, a song belonging to the same genre as the genre (for example, classical music or jazz) of the last played song is preferentially selected. It may be. When the list creation means 202 changes the reproduction list so that the music reproduction ends at the expected time (step S22 or step S23), the reproduction means 203 continues the music reproduction based on the reproduction list (step S15).
If the last song in the playlist is not being played (step S20 / NO), the process proceeds to F in FIG. If the last song in the reproduction list has not been reproduced, the list creation unit 202 changes the list so that the reproduction ends at the expected time recalculated by the calculation unit 201 (step S29).

When the predicted time calculated by the calculation unit 201 is earlier than the predicted time calculated by the calculation unit 201 (step S19 / case 2), the process proceeds to E in FIG. When the expected time calculated by the calculating means 201 is earlier than the expected time calculated by the calculating means 201, the list creating means 202 confirms whether or not the reproducing means 203 is playing the last song in the playlist (step). S27). If the reproducing unit 203 is reproducing the last song in the reproduction list (step S27 / YES), the process proceeds to G in FIG. If the reproducing unit 203 is reproducing the last song in the reproduction list, the reproducing unit 203 continues reproduction based on the reproduction list (step S15). When the reproduction means 203 arrives at the beacon installation point during reproduction (step S16 / YES), the selection means 205 is sent from the optical beacon receiver 62 or the radio beacon receiver 63 as described above. Road traffic information is acquired (step S24). The output unit 204 outputs the road traffic information acquired by the selection unit 205 (step S25).
If the reproduction unit 203 has not reproduced the last song in the reproduction list, the list creation unit 202 changes the reproduction list so that the song ends at the estimated arrival time (step S28). When the list creating unit 202 finishes the process of step S28, the process proceeds to G in FIG. 4 and the reproducing unit 203 continues to reproduce the music based on the reproduction list (step S15).

  If the predicted time is the same as the previous predicted time (step S19 / Case 3), there is no need to change the playback list, so the list creation means 202 does not perform any processing and proceeds to G in FIG. The reproduction unit 203 continues reproduction based on the reproduction list (step S15).

  If the calculation means 201 determines that the current location is not an area where a beacon is installed (step S12 / NO), the calculation means 201 proceeds to H in FIG. If the current location is not an area where a beacon is installed, the selection unit 205 selects the FM multiplex broadcast receiver 61 as an acquisition source of road traffic information. Accordingly, the selection unit 205 acquires road traffic information at regular time intervals, and voice-guides the road traffic information via the output unit 204. Therefore, the calculation unit 201 calculates the time until the selection unit 205 acquires road traffic information from the FM multiplex broadcast receiver 61 (step S30). The list creation unit 202 confirms whether there is music to be played back by the time calculated by the calculation unit 201 (step S31). If there is a song that is to be played back by the time calculated by the calculating means 201 (step S31 / YES), the list creating means 202 selects those music data and creates a play list (step S34). The reproduction unit 203 reproduces music based on the reproduction list created by the list creation unit 202 (step S35). When the FM multiplex broadcast receiver 61 receives the road traffic information, the selection unit 205 acquires the road traffic information from the FM multiplex broadcast receiver 61 (step S36). If the selection means 205 acquires road traffic information, it will progress to I of FIG. The output means 204 outputs the road traffic information acquired by the selection means 205 by voice through the speaker 11. Here, as described above, at step S33, the list creating unit 202 ends the reproduction of the music based on the reproduction list at the time when the selection unit 205 acquires the road traffic information from the FM multiplex broadcast receiver 61. A playlist is being created. Therefore, when the road traffic information is voice-guided from the speaker 11 by the output means 204, the music playback is completed, and the driver reliably acquires the road traffic information without interrupting the music playback. can do.

  Next, a case will be described in which there is no corresponding music data (step S30 / NO) as a result of checking whether there is music to be played back by the time calculated by the calculation unit 201 by the list creation unit 202. In road traffic information using FM multiplex broadcasting, road traffic information having the same content is transmitted a plurality of times within a predetermined time. Therefore, the selection unit 205 only needs to acquire one information out of road traffic information having the same content transmitted a plurality of times and transmit it to the driver. Therefore, the calculation unit 201 sets the acquisition time of the road traffic information acquired by the selection unit 205 to the next time (step S32). Next, the calculation unit 201 calculates the time from the current time until the next time when the selection unit 205 acquires road traffic information (step S33). Then, the list creation unit 202 confirms again whether there is music that will be played back by the time calculated by the calculation unit 201 (step S31). If there is a song that is to be played back by the time calculated by the calculating means 201 (step S31 / YES), the list creating means 202 selects those music data and creates a play list (step S34). The processing after step S34 is as described above.

  The control unit 20 repeats the above processing until the vehicle arrives at the destination (step S26 / NO and step S12). When the vehicle arrives at the destination, the control unit 20 ends the process (step S26 / YES).

  Next, the relationship between the calculation result of the calculation unit 201 and the reproduction list created by the list creation unit 202 will be described with reference to FIGS. 9 and 10. FIG. 9 is a diagram showing an example of the relationship between the calculation result of the calculation unit 201 and the reproduction list created by the list creation unit 202 when the vehicle is traveling in the beacon installation area.

  In case 1 of FIG. 9 (1), it is assumed that the calculation means 201 calculates the estimated time of arrival at the beacon installation point from the current location as 17:07 at 17:00 (a). Then, the list creation means 202 creates a playlist by selecting song A having a playback time of 3 minutes and song B having a playback time of 4 minutes so that the music playback ends at 17:07. (C). After that, during the reproduction of the music piece A, it is assumed that the GPS signal is received and the calculation means 201 recalculates the expected time of arrival at the beacon installation point to be 17:10 (b). Since the previous predicted time was 17:07, there is a deviation of 3 minutes. Therefore, the list creating means 202 adds the song C having a reproduction time of 7 minutes to the reproduction list instead of the song B having a reproduction time of 4 minutes so that the music reproduction ends at 17:10 (d). . Alternatively, a song with a total playback time of 7 minutes may be added.

  In case 2 of FIG. 9 (2), it is assumed that the calculation means 201 calculates the estimated time of arrival at the beacon installation point from the current location as 17:10 (a). Then, the list creation means 202 creates a playlist by selecting song A having a playback time of 4 minutes and song B having a playback time of 6 minutes so that the music playback ends at 17:10. (C). After that, during the reproduction of the music piece A, it is assumed that the GPS signal is received and the calculation means 201 recalculates the expected time of arrival at the beacon installation point to be 17:08 (b). Since the previous predicted time was 17:10, there is a deviation of 2 minutes. Therefore, the list creating means 202 adds the song C having a playing time of 4 minutes to the playing list instead of the song B having a playing time of 6 minutes so that the music playback ends at 17:08 (d). .

  In case 3 of FIG. 9 (3), it is assumed that the calculation means 201 calculates the estimated time of arrival at the beacon installation point from the current location as 17:07 (a). Then, the list creation means 202 creates a playlist by selecting song A having a playback time of 3 minutes and song B having a playback time of 4 minutes so that the music playback ends at 17:10. (C). Thereafter, when the GPS signal is received during the reproduction of the song B, which is the last song in the playlist, and the calculation means 201 recalculates the expected time of arrival at the beacon installation point, it is assumed that 17:08 is obtained (b). . Since the previous predicted time was 17:07, there is a shift of 1 minute. Therefore, the list creation unit 202 selects music data that ends in 1 minute from 17:07 when the song B ends. However, if one tune is reproduced and exceeds 17:08, part of tune C is added to the reproduction list so that the reproduction time becomes one minute (d).

  FIG. 10 is a diagram illustrating an example of the relationship between the calculation result of the calculation unit 201 and the reproduction list created by the list creation unit 202 when the vehicle is traveling in an area where no beacon is installed. In the numbers in parentheses next to the reception of road traffic information, if the left number is the same, the road traffic information is the same content, and the right number is the road with the same content transmitted multiple times This indicates the number of times of road traffic information in the traffic information.

  In case 4 of FIG. 10 (4), the calculation means 201 acquires the road traffic information at 17:00 by the selection means 205, so the next road traffic information acquisition time is a certain time later (after 5 minutes in FIG. 10). ) 17:05 (a). The list creation means 202 creates a playlist by selecting song A with a playback time of 3 minutes and song B with a playback time of 2 minutes so that playback ends at 17:05 (b). .

  In case 5 of FIG. 10 (5), the calculation means 201 has acquired the road traffic information at 17:00 by the selection means 205, so the next road traffic information acquisition time is a certain time later (after 5 minutes in FIG. 10). ) 17:05 (a). However, it is assumed that the list creation unit 202 cannot select music data that can be played back at 17:05. Therefore, the calculation unit 201 calculates the time when the road traffic information acquisition time is set to the second time instead of the first time (in the case of FIG. 10, 17:08). Then, the list creation unit 202 creates a playlist by selecting song A having a playback time of 4 minutes and song B having a playback time of 4 minutes so that playback ends at 17:08 (b) ).

  As is clear from the above description, the selecting means 205 selects the receiver that preferentially acquires the road traffic information according to the characteristics such as the urgency of the information received by the road traffic information receiver. Preferential information can be transmitted to the driver. Further, the list creating means 202 creates the reproduction list from the speaker 11 by the output means 204 so that the reproduction of music ends at the time when the receiver selected by the selecting means 205 receives the road traffic information. When the voice guidance is given, the music playback ends. Therefore, discomfort given to the driver when transmitting necessary information to the driver who is listening to music can be reduced.

The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments according to the present invention, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.
The program executed by the control unit 20 can be provided by being stored and distributed in a magnetic disk, an optical disk, a semiconductor memory, or other recording medium, or distributed via a network.
Furthermore, the control unit 20 may read out a software program stored in the ROM 23 and execute part or all of the software processing executed by the CPU 21 by hardware.

It is a figure which shows an example of the system configuration | structure of the navigation apparatus with which this invention is applied. It is a figure which shows an example of the hardware constitutions of a control part. It is a figure which shows an example of the functional block diagram of a control part. It is a flowchart which shows an example of the process which a control part performs at the time of navigation. It is a flowchart which shows an example of the process which a control part performs at the time of navigation. It is a flowchart which shows an example of the process which a control part performs at the time of navigation. It is a flowchart which shows an example of the process which a control part performs at the time of navigation. It is a flowchart which shows an example of the process which a control part performs at the time of navigation. It is a figure which shows an example of the relationship between the estimated time which a calculation means calculates in the beacon installation area, and the reproduction | regeneration list | wrist which a list preparation means produces. It is a figure which shows an example of the relationship between the estimated time which a calculation means calculates in the area | region where the beacon is not installed, and the reproduction | regeneration list | wrist which a list preparation means produces.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Display 11 ... Speaker 12 ... Telephone 13 ... Operation part 20 ... Control part 21 ... CPU
22 ... RAM
23 ... ROM
24 ... Input / output unit 25 ... Audio processing unit 26 ... Navigation processing unit 30 ... Storage unit 40 ... GPS receiver 50 ... Vehicle speed sensor 60 ... Road traffic information receiver 61 ... FM multiplex broadcast receiver 62 ... Optical beacon receiver 63 ... Radio wave beacon receiver 100 ... vehicle-mounted device 201 ... calculation means 202 ... list creation means 203 ... reproduction means 204 ... output means 205 ... selection means 301 ... music data 302 ... beacon installation location information 303 ... map information

Claims (5)

A navigation device that guides driving according to a guidance route to a destination by display on a screen,
A first receiving unit that receives road traffic information transmitted at regular intervals using broadcast radio waves;
A second receiving unit that is installed on the guidance route and receives road traffic information from the terminal when a vehicle passes through a transmission range of the terminal that transmits road traffic information;
Selecting means for selecting a receiving unit for receiving road traffic information guided by voice by the navigation device between the first receiving unit and the second receiving unit according to a predetermined priority;
Calculating means for calculating an information reception time at which the receiving unit selected by the selecting means receives road traffic information;
A navigation apparatus comprising: a playlist creating means for creating a playlist combining music data so that music playback ends at the information reception time calculated by the calculating means. The calculation means recalculates the information reception time when the receiving unit selected by the selection means receives road traffic information,
The playlist creation means changes the playlist so that music playback ends at the recalculated information reception time when the recalculated information reception time is different from the information reception time before the recalculation. The navigation device according to claim 1, wherein:   When the playlist creation means creates a playlist using all of the music data of one song, if the music playback end time is later than the information reception time calculated by the calculation means, The navigation device according to claim 1 or 2, wherein a reproduction list is created by using a part of music data of one music so that reproduction is completed. The road traffic information received by the first receiving unit is road traffic information that is transmitted within a certain time over the same content multiple times.
When the selection unit selects the first receiving unit as a receiving unit that receives road traffic information guided by voice of the navigation device,
The calculation means calculates an information reception time at which the first receiving unit receives road traffic information for each road traffic information having the same content transmitted a plurality of times,
The playlist creation means creates a playlist so that the playback of music or video ends at any one of the plurality of information reception times calculated by the calculation means,
The navigation device according to any one of claims 1 to 3, wherein the first reception unit receives road traffic information at a time when reproduction of music based on a reproduction list ends. When the vehicle passes through a transmission range of a first reception unit that receives road traffic information transmitted every predetermined time using broadcast radio waves and a terminal that is installed on the guide route and transmits road traffic information, A music playback method in a navigation device that includes a second receiving unit that receives road traffic information from a terminal and guides driving according to a guidance route to a destination by display on a screen,
A selection step of selecting a reception unit that receives road traffic information guided by voice by the navigation device between the first reception unit and the second reception unit according to a predetermined priority;
A calculation step of calculating an information reception time at which the receiving unit selected by the selection step receives road traffic information;
A music playback method comprising: a playlist creation step of creating a playlist combining music data so that music playback ends at the information reception time calculated by the calculating means.

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