JP2007225497A - Remote service system for vehicle and on-vehicle remote service terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform highly accurate route guide in a long-distance section, while reducing a cost of an on-vehicle remote service terminal. <P>SOLUTION: When transmitting a service request including a vehicle present position and a designated destination from a voice guide unit 1 loaded on a vehicle 14 to a remote service center 16, a remote service server 17 searches for a route between the vehicle present position and the designated destination included in the service request, and presents the state wherein remote service information including voice guide information corresponding to the route searched for, is provided to the voice guide unit 1 by radio communication. The voice guide unit 1 downloads the provided remote service information in each prescribed section portion in time series and stores it in a storage part, executes a voice guide based on the stored information at every time when one's own vehicle reaches a guide point shown by the information, and erases successively the remote service information resulting in being unnecessary from the storage part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicular remote service system using a remote service terminal mounted on a vehicle as a client, and an in-vehicle remote service terminal used in this system.

  In a car navigation device that uses map data to display a map screen around the current position of the vehicle on an in-vehicle display, or displays a guidance route on the map screen and provides route guidance to a destination by voice guidance Is generally configured to include a storage medium (DVD-ROM, hard disk drive, etc.) storing map data. However, preparing a storage medium that stores a wide range of detailed maps means that it keeps map data that is not normally used, which is not efficient. That is, the conventional car navigation apparatus has a problem that it is disadvantageous in terms of cost because it is necessary to prepare a large-capacity storage medium.

On the other hand, in recent years, with the progress of communication technology, a communication type navigation system using a network has attracted attention, and this system is advantageous in terms of cost because a large-capacity storage medium is unnecessary. . For example, this type of communication-type navigation system realizes a navigation function by data communication between an in-vehicle terminal (car navigation device) and a remote service center. In such a communication-type navigation system, when the in-vehicle terminal transmits a service request including vehicle current position information to the remote service center, the remote service center generates map data and guide route data according to the received service request. The system configuration is such that the generated data is distributed to the in-vehicle terminal (see, for example, Patent Document 1 and Patent Document 2).
Japanese Patent Laid-Open No. 10-260048 JP 2003-65785 A

  In a conventional navigation system, a car navigation device equipped with a display device or the like is required as an in-vehicle terminal. Therefore, it is difficult to sufficiently reduce the system cost, and when a car navigation device is not provided, Even with a system configuration that provides route guidance information from the remote service center side, route guidance with high accuracy is impossible in a long distance section.

  In other words, in recent years, as in the case of a remote service system called G-BOOK ALPHA (registered trademark), an emergency call function, an anti-theft function, a vehicle remote control function, a music provision function, etc. in the event of an accident or a passenger illness In addition, a system with an optimum route search function that predicts future road conditions comprehensively from the latest traffic information and past statistical data and creates optimum route guidance information avoiding traffic congestion is provided, By using the route guidance information in this system, it is not necessary to provide a large-capacity storage medium on the in-vehicle terminal side, and route guidance with high accuracy can be realized. However, even in such a remote service system, since it is assumed that a navigation device is mounted on the vehicle side, it is still difficult to reduce the system cost, and when the navigation device is not mounted, There is a problem that route guidance with high accuracy becomes difficult in a long distance section.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an effect such as enabling highly accurate route guidance in a long-distance section while reducing the cost of an in-vehicle remote service terminal. It is to provide an in-vehicle remote service terminal used in such a remote service system.

  According to the remote service system of claim 1, when a service request including the vehicle current position detected by the position detection unit and the designated destination by the user is transmitted from the in-vehicle remote service terminal to the remote service center by wireless communication, On the remote service center side receiving this, the remote service server performs a route search with the vehicle current position and the specified destination included in the received service request as the set departure point and the set destination, respectively, and has been searched. Remote service information corresponding to the route (including point information indicating the position of the guidance point set in the searched route and voice information in which a predetermined route guidance voice message is assigned to each guidance point) The remote service information to the in-vehicle remote service terminal It will assume a possible offer state by communications.

  In this case, the in-vehicle remote service terminal that is the transmission source of the service request is present in the designated destination direction from the current vehicle position indicated by the position detection means in the remote service information in the available state. A process of downloading point information and voice information corresponding to a predetermined section in time series and storing them in the data storage means, a vehicle current position indicated by the position detection means, and a guide point indicated by the point information stored in the data storage means A process for reproducing and outputting the route guidance voice message assigned to the voice information corresponding to the guidance point by the voice output means every time the vehicle reaches the guidance point, and reproduced and output at every predetermined timing after the host vehicle passes the guidance point. The process of erasing the voice information and the corresponding point information from the data storage means, I would like to sequentially executed.

  As a result, every time the host vehicle reaches the guidance point set in the guidance route to the designated destination, the route guidance voice message assigned to each guidance point is reproduced by the voice output means. Thus, route guidance to the designated destination is performed by the sound output reproduced in this way. In this case, the guidance route is based on the route search result on the remote service server side, and can improve the accuracy. The route guidance is performed by voice every time the own vehicle reaches the guidance point. In general, route guidance with high accuracy is possible in the long distance section.

  Further, the vehicle-mounted remote service terminal only needs to be provided with a position detection means, a data storage means, a voice output means, etc., and needs to be configured as a car navigation device equipped with a display device as in the prior art. Therefore, the cost of the in-vehicle remote service terminal can be reduced. Moreover, since the voice information and point information stored in the data storage means are sequentially deleted from unnecessary ones, the storage capacity required for the data storage means is not increased, and this is also a cost. Can be realized.

  According to the remote service system of claim 2, the download of the remote service information at the in-vehicle remote service terminal is performed in units of areas defined in a mesh shape by the latitude line and the longitude line. The degree of freedom of position becomes high. As a result, for example, the remote service information can be downloaded only at the vehicle position where good wireless communication is possible, and the reliability of the download operation can be improved.

  According to the remote service system of claim 3, the remote service information is downloaded from the in-vehicle remote service terminal in units of areas defined based on the size of the data amount of the information. It becomes possible to prevent the situation where the amount of download information becomes excessive. As a result, the remote service information download is less likely to be interrupted due to a communication failure, etc., and the reliability of the download operation is improved and the storage capacity required for the data storage means can be reduced. .

  According to the remote service system of claim 4, when the current position of the vehicle deviates from the guidance route, route deviation information is transmitted from the remote service center side to the in-vehicle remote service terminal. Based on the deviation information, it becomes possible to recognize the deviation state from the guidance route, and thus the traveling route of the host vehicle can be accurately corrected.

  According to the remote service system of the fifth aspect, on the user side, the route departure state can be surely recognized by the voice message output from the voice output means. Further, the user side can selectively request a route re-search to the remote service center based on the recognition result as described above, and when such a re-search request is made, Since the remote service information related to the new guidance route from the current vehicle position can be downloaded from the remote service center, the user (vehicle driver) side anxiety about the departure from the route can be eliminated.

  According to the on-vehicle remote service terminal according to claim 6, the control means transmits the service request including the vehicle current position detected by the position detection means and the designated destination by the user to the remote service center by wireless communication means. Remote service information created in response to reception of the service request on the remote service center side (point information indicating the position of the guide point set in the searched route and a predetermined route guidance voice message assigned to each guide point) Point information and voice information corresponding to a predetermined section existing in the designated destination direction from the current vehicle position indicated by the position detection means is downloaded in time series through the wireless communication means. Processing stored in the data storage means and the vehicle current indicated by the position detection means. A process for reproducing and outputting the route guidance voice message assigned to the voice information corresponding to the guidance point by the voice output means every time the position reaches the guidance point indicated by the point information stored in the data storage means, At the predetermined timing after passing through the guide point, the reproduction and output voice information and the process of erasing the corresponding point information from the data storage means are sequentially executed.

  As a result, every time the host vehicle reaches the guidance point set in the guidance route to the destination, the route guidance voice message assigned to each guidance point is reproduced by the voice output means. Thus, route guidance to the destination is performed by voice output. In this case, the guidance route is based on the route search result on the remote service server side, and can improve the accuracy. The route guidance is performed by voice every time the own vehicle reaches the guidance point. In general, route guidance with high accuracy is possible in the long distance section.

  In addition, it is only necessary to provide a position detecting means, a wireless communication means, a data storage means, a voice output means, and a control means on the in-vehicle remote service terminal side. Since it is not necessary to configure as a device, the cost can be reduced. In this case, since the voice information and point information stored in the data storage means are sequentially deleted from unnecessary ones, there is no increase in the storage capacity required for the data storage means, and from this aspect as well. Cost reduction can be realized.

  According to the in-vehicle remote service terminal, even if the satellite positioning means (that is, detection of the current vehicle position) is impossible, the route guidance voice message assigned to each guidance point Since the reproduction can be performed based on the result of estimating the time at which the host vehicle reaches the guidance point by using the average traveling speed, it is useful for preventing a decrease in the reliability of the route guidance by voice.

  According to the in-vehicle remote service terminal, the user can easily reconfirm the route guidance voice message according to the operation of the operation means.

(First embodiment)
A first embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 shows the electrical configuration of a voice guidance unit 1 (corresponding to an in-vehicle remote service terminal) serving as a client of a vehicle remote service system according to the present embodiment using functional blocks. In FIG. 1, a voice guide unit 1 is a GPS receiver mounted on a vehicle with respect to a control unit 2 (corresponding to a control means and a position detection means) including a microcomputer for controlling the operation thereof. 3 (corresponding to satellite positioning means), operation switch section 4, storage section 5 (corresponding to data storage means), audio control section 6 (corresponding to voice output means), vehicle interface section 7, and LED driver 8 are connected. Has been.

  In addition, a cellular communication unit 9 (corresponding to a wireless communication unit, for example, a mobile phone in this embodiment) is connected to the control unit 2 via a communication cable or a wireless communication unit (for example, Bluetooth (registered trademark)). It becomes the composition which is done.

The GPS receiver 3 receives a signal from a GPS artificial satellite, and gives the received GPS signal to the control unit 2 as positioning information indicating the current position of the host vehicle.
The operation switch unit 4 is installed at a position where it can be easily operated from the driver's seat for the vehicle. For example, as shown in FIG. 2, a “service connection” button 4a, a “service disconnection” button 4b, and “voice guidance reproduction” "Button 4c (corresponding to the operation means)," forward "button 4d," return "button 4e, and" help "button 4f, and corresponding momentary switches (whichever one corresponds to each button 4a to 4f) The ON signal is output from the control unit 2 and the ON signal is output from the control unit 2.

  The storage unit 5 has a form in which stored data can be rewritten, and a memory area for storing received data (remote service information) from a remote service center described later is set. The storage unit 5 can be replaced by a RAM in the microcomputer constituting the control unit 2.

  The audio control unit 6 is configured to include a voice synthesis circuit, an amplifier, and the like. When audio information to be described later is given from the control unit 2, the audio control unit 6 synthesizes a voice signal corresponding to the voice information and is mounted on the vehicle. The speaker 10 is configured to output toward the vehicle occupant.

  The vehicle interface unit 7 is provided to exchange data with other control systems in the vehicle (airbag system, body system including door / air conditioner, powertrain system including engine, etc.) via the in-vehicle LAN. In particular, the control unit 2 is configured to capture a vehicle speed signal indicating the traveling speed of the vehicle through the vehicle interface unit 7.

  The LED driver 8 is provided to drive a turn signal indicator 11 provided in the vehicle. The turn signal indicator 11 is arranged on the instrument panel of the vehicle in order to display the left turn instruction state and the right turn instruction state (and the hazard display state) of the vehicle turn indicator (blinker), for example, The two-color light emitting diode 12 for instructing left turn and the two-color light emitting diode 13 for instructing right turn. In this case, each of the light emitting diodes 12 and 13 includes green light emitting portions 12a and 13a and red light emitting portions 12b and 13b. When the vehicle turn indicator is instructed to turn left and turn right (and at the time of hazard display) The corresponding light emitting units (12a and 12b, 13a and 13b) are intermittently simultaneously turned on and emit yellow light. The LED driver 8 is configured to selectively drive, for example, the green light emitting portions 12a and 13a of the respective light emitting diodes 12 and 13, and is described later by lighting in green (either continuous or intermittent). The vehicle guidance direction (left turn or right turn direction) during route guidance is displayed.

  FIG. 3 schematically shows the overall configuration of the vehicular remote service system. In FIG. 3, the voice guidance unit 1 mounted on the vehicle 14 performs voice communication and data communication with the mobile phone base station 15 through the cellular communication unit 9. In the remote service center 16 installed so as to be communicable with the base station 15, for example, a remote service server 17 operated by an operator is provided.

  In this case, the voice guidance unit 1 can request the remote service center 16 to provide a route guidance service, and the service request is made in the following order, for example.

  That is, when the user (vehicle driver) operates the “service connection” button 4 a of the operation switch unit 4, the control unit 2 that receives the switch signal output in response thereto sends the remote communication center 16 to the cellular communication unit 9. And the remote service server 17 is in a state where a call can be made with the operator of the remote service server 17, and the user specifies the final destination for route guidance by calling with the operator. Such specification of the designated destination is performed based on the place name, address, facility name, telephone number, etc. of the destination, but may be performed using a map code (registered trademark). After the designated destination is transmitted to the operator, the control unit 2 performs the transmission operation of the vehicle current position in response to a predetermined operation (for example, re-operation of the “service connection” button 4a) according to an instruction from the operator side. To do. Specifically, the control unit 2 calculates vehicle current position information from the GPS receiver 3 to the GPS signal, and transmits the vehicle current position information to the remote service center 16 by wireless communication through the cellular communication unit 9. . A configuration in which the current vehicle position information is calculated on the remote service center 16 side (a configuration in which a GPS signal is directly transmitted to the remote service center 16) is also possible.

  In this way, a service request including the current vehicle position detected by the GPS receiver 3 and the designated destination by the user can be transmitted from the voice guidance unit 1 to the remote service center 16.

  The remote service server 17 has a function for searching for a route from the set departure place to the set destination, point information indicating the position of the guide point set in the route searched by the search function, and each guide point. And a function of creating remote service information composed of a voice guidance tag group including voice information to which a predetermined route guidance voice message is assigned, distance information between each guidance point, and the like.

  Such a remote service information creation function is activated when the remote service center 16 receives the service request from the voice guidance unit 1, and the remote service server 17 receives the received service request. A route search is performed using the current vehicle position and the specified destination included in the vehicle as the set departure point and the set destination, respectively, and remote service information corresponding to the searched route is created. The state which can be provided to the guidance unit 1 through the cellular communication part 9 is exhibited.

  In the remote service information created as described above, the point information indicating the position of the guidance point set in the searched route is longitude and latitude information indicating a point where voice guidance through the speaker 10 is performed, and guidance The route guidance voice message assigned to the point is in a text format such as “Please turn left at the XX intersection 300 meters ahead” (where XX indicates a place name or the like).

  In this case, the remote service server 17 has a data structure in which the voice guidance tag including point information and voice information corresponding to the remote service information can be divided in units of areas defined in a mesh shape by latitude lines and longitude lines. The data structure will be described with reference to FIG.

  That is, FIG. 4 shows the relationship between the search route Y (shown by a thick line) from the set departure point to the set destination and the guidance point, and the remote service server 17 displays the map corresponding to the search route Y as latitude. An area unit (denoted by reference symbols A to G in FIG. 4) is defined in mesh-shaped region units based on lines and longitude lines, and guide points (indicated by reference symbols p1 to p18 in FIG. 4) exist on the search route. For each point, the voice information tag including the point information capable of specifying the position of the guidance point and the voice information corresponding thereto is grouped, and each group is managed as one data unit, that is, the remote service information is It is a structure that can be divided for each area unit defined in a mesh shape.

  In FIG. 4, for example, the contents of the voice guidance tag corresponding to the guidance point p1 are shown. This voice guidance tag includes control information related to the turn signal indicator 11 in addition to the longitude / latitude information a indicating the guidance point p1 and the text-format route guidance voice message b assigned to the voice information. This control information turns on the green light emission part 12a (left turn guidance) of the turn signal indicator 11 from a position before a predetermined distance of the left turn intersection indicated by the route guidance voice message b started to be reproduced at the guide point p1. And a command / latitude information d indicating the lighting start position and the lighting end position.

  The control unit 2 in the voice guidance unit 1 has a function of detecting the current position of the host vehicle based on the positioning information from the GPS receiver 3, and the position detection result, an ON signal from the operation switch unit 4, Control of the storage unit 5, the audio control unit 6, the LED driver 8, and the cellular communication unit 9 based on the storage contents of the storage unit 5, the vehicle speed signal taken in through the vehicle interface unit 7, and the control program stored in advance. Is to do.

FIG. 5 shows an information download processing routine related to remote service information download and deletion control among the contents of control by the control unit 2. This will be described below together with related operations.
In this information download processing routine, first, it is determined whether or not the service request is transmitted to the remote service center 16 (step S101). Only when the service request is transmitted, the remote service information set in the storage unit 5 is determined. The memory area for is initialized (step S102).

  Thereafter, the initial remote service information is downloaded from the remote service center 16 and stored in the memory area of the storage unit 5 (step S103). The initial remote service information here includes a voice guidance tag corresponding to the first predetermined section (for example, the area units A and B shown in FIG. 4) in the searched route.

  After the execution of step S103, the process waits until the host vehicle reaches an information download area where the next remote service information needs to be downloaded or until the “service disconnect” button 4b is operated (steps S104 and S105). In this case, the information download area corresponds to each area unit including the searched route among the guide points (see p1 to p18 in FIG. 4) set on the searched route, for example, corresponding to the last part of the searched route. This corresponds to the area immediately after the end of the voice guidance at the last guidance point in FIG. Specifically, in the example of FIG. 4, the area immediately after the voice guidance at the guidance points p4, p5, p8, p12, p14, and p15 is the information download area.

  When the “service disconnection” button 4a is operated, after executing step S106 for stopping the processing related to the download of the remote service information, the information download processing routine is ended. When the “service disconnection” button 4a is operated, a service disconnection request is transmitted to the remote service center 16, and in response to this, the remote service center side ends the remote service information providing operation. become.

  On the other hand, when the host vehicle reaches the information download area, the remote service information related to the area unit including the guidance point at which the voice guidance is completed among the remote service information stored in the storage unit 5, that is, Delete used remote service information. Specifically, for example, in FIG. 4, when the own vehicle reaches the information download area corresponding to the guidance point p4, the voice guidance tag constituting the remote service information related to the area unit A including the guidance point p4 is set. Erase from the memory area of the storage unit 5.

  After execution of step S107, the remote service information required next is downloaded from the remote service center 16 and stored in the memory area of the storage unit 5 (step S109). Specifically, in FIG. 4, for example, when the remote service information related to the area unit A is deleted from the storage unit 5 in the information download area corresponding to the guidance point p4, the remote service information related to the area unit C is downloaded. For example, when the remote service information related to the area unit B is erased from the storage unit 5 in the information download area corresponding to the guidance point p5, the remote service information related to the area unit D is stored. It will be downloaded and memorized newly.

  Thereafter, it is determined whether or not the remote service information relating to the region unit including the set destination (region unit G in the example of FIG. 4) has been downloaded (step S109). If "NO" is determined here, the process returns to step S104. If "YES" is determined, the information download processing routine is ended after executing step S106.

  In short, in the information download processing routine shown in FIG. 5, the remote service information (point information and point information and the remote service center 16 prepared in a form that can be divided in units of areas defined in a mesh shape by latitude and longitude lines on the remote service center 16 side. Remote service information including a voice guidance tag corresponding to a predetermined section existing in the direction of the set destination from the current vehicle position is downloaded to the storage unit 5 in a time series manner (including a voice guidance tag group including voice information). In addition to the sequential storage, a process of deleting unnecessary voice guidance tags from the storage unit 5 is performed in synchronization with the storage operation.

FIG. 6 shows a voice guidance processing routine related to voice guidance control based on remote service information among the control contents by the control unit 2 in the voice guidance unit 1, and this will be described below together with related actions.
In this voice guidance processing routine, first, after executing step S201 for calculating the average speed of the host vehicle, the routine proceeds to decision step S202. In step S202, it is determined whether or not satellite positioning by the GPS receiver 3 is possible. If satellite positioning is not possible, the time when the host vehicle is expected to reach the next guidance point is determined. The estimation is performed using the average speed calculated in step S201 and the distance to the guide point (step S203). The distance to the guidance point is based on, for example, distance information between the guidance points (this is included in the downloaded remote service information) and the travel distance of the host vehicle from the previous guidance point (or set departure point). Can be obtained.

  Thereafter, it is determined whether or not the expected arrival time has been reached in a state where satellite positioning is impossible (step S204). Here, the process returns to step S201 during a period determined to be “NO”, but when it is determined to be “YES”, the voice information (route guidance voice) in the voice guidance tag corresponding to the guidance point targeted for the arrival prediction is determined. The voice guidance of reproducing and outputting the message from the speaker 10 is executed (step S205), and then the process returns to step S201.

  On the other hand, if it is determined in step S202 that satellite positioning by the GPS receiver 3 is possible, whether or not the current position of the host vehicle and the execution status of the voice guidance are appropriate (that is, the current position of the host vehicle). And whether or not the route guidance voice message output at the guidance point is synchronized) (step S207). It is determined whether or not it has reached (step S207).

  During the period in which “NO” is determined in step S208, the process returns to step S201. However, if “YES” is determined, voice guidance is executed in which voice information corresponding to the guidance point is output from the speaker 10 (step S201). After this, the process returns to step S201.

  If it is determined in step S206 that the current position of the host vehicle and the execution status of the voice guidance are not appropriate, the voice guidance at the guidance point is “advanced” or “delayed” with respect to the current position of the vehicle. It is determined whether it is in a state (step S209). The “advance” state here is a state in which voice information corresponding to a guide point existing at the destination of the vehicle is output at a position in front of the guide point (a state in which voice guidance is performed ahead). Further, the “delayed” state corresponds to a state in which voice information corresponding to the guidance point through which the vehicle has not been output (a state in which voice guidance is performed with a delay).

  When the voice guidance is in the “advance” state, the voice information to be output at the next guidance point is skipped (the voice information erroneously output at the position before the guidance point is After executing step S210 for correcting the current position of the host vehicle and the execution status of the voice guidance to have an appropriate relationship, the process returns to step S201. If the voice guidance is in a “delayed” state, the voice information to be output at the next guidance point is skipped up so that the current position of the host vehicle and the execution status of the voice guidance are in an appropriate relationship. After executing step S211 for correction, the process returns to step S201.

  Although not specifically shown in FIG. 6, the own vehicle position (estimated position, detected position based on satellite positioning) is in the section indicated by the control information (see FIG. 4) in the voice guidance tag. During the period, the lighting signal start and end control of the turn signal indicator 11 indicated by the control information is performed. That is, the guidance direction (left or right turn direction) indicated by the route guidance voice message output at the guidance point is notified by lighting the turn signal indicator 11 in a color (green) different from the normal color (yellow). It has a configuration.

  In short, in the voice guidance processing routine shown in FIG. 6, when the current position of the host vehicle can be detected by satellite positioning by the GPS receiver 3, the host vehicle position indicated by the detection result is used as the guide point. Every time it arrives, voice guidance is executed in which voice information (voice message for route guidance) in the voice guidance tag corresponding to the guidance point is output from the speaker 10.

  If the current position of the host vehicle cannot be detected by satellite positioning, the time at which the host vehicle reaches the guidance point is estimated based on the average traveling speed of the host vehicle, etc. When the estimated time is reached as possible, voice guidance is executed in which voice information in a voice guidance tag corresponding to the guidance point is output from the speaker 10.

  In addition, when such a deviation occurs in the estimation and the current position of the host vehicle and the execution status of the voice guidance become inappropriate, the audio information may be skipped down or skipped up depending on the state. Thus, the current position of the vehicle and the execution status of the voice guidance are corrected so as to have an appropriate relationship.

  FIG. 7 is a schematic diagram for explaining a case where such correction is performed. In the example of FIG. 7, for example, a region A0 (region where GPS signals cannot be received) including the guide point p2 is present between the guide points p1 to p3 on the searched route Y. Has been. In FIG. 7, the average speed of the vehicle is calculated and the satellite positioning is impossible during the period until the vehicle running from the guidance point p1 toward the guidance point p2 reaches the satellite positioning impossible area A0. While traveling in the section, the estimated arrival time at the guidance point p2 is estimated. Thereafter, when the predicted arrival time is reached, voice guidance corresponding to the guidance point p2 is performed at the time of arrival, and estimation of the predicted arrival time to the guidance point p3 is performed after the voice guidance ends.

  In the example of FIG. 7, since the guidance point p3 is located in an area where satellite positioning is possible, the voice guidance based on the estimated arrival time to the guidance point p3 is not originally executed. If there is an error in the estimation of the predicted arrival time, for example, there is a possibility that a voice guidance is erroneously executed at a point p3 ′ shown in FIG. Thus, the current position of the host vehicle and the state of execution of the voice guidance are inappropriate (in this example, the voice information corresponding to the guidance point p3 existing at the destination of the vehicle is the point p3 on the near side of the guidance point p3) , The voice information to be output at the guidance point p3 is re-output (the voice information is skipped down), and the current position of the host vehicle and the execution status of the voice guidance. Will be corrected to be in an appropriate relationship.

  In this case, after the controller 2 returns from a state where satellite positioning by the GPS receiver 3 is impossible (after the host vehicle escapes from the satellite positioning impossible area A0), the current position of the host vehicle is determined. , If it is a position that has passed the guidance point and is in front of the guidance target point by the voice message for route guidance corresponding to the guidance point, the current position of the vehicle at that time It is good also as a structure which corrects to the content suitable for, and outputs the voice message for route guidance after the correction from the speaker 10. For example, if the voice message “Please turn left at XX intersection 300m ahead” at the passing guidance point above, the position of your vehicle is 100 at the guidance target point (in this case, “XX intersection”). If it was before the meter, the voice message will be revised as "Please turn left at the intersection of XX meters ahead". According to such a configuration, it becomes possible to improve the reliability of route guidance by voice.

FIG. 8 illustrates the voice guidance control performed based on the operation of the “voice guidance playback” button 4c, the “forward” button 4d, and the “return” button 4e among the control contents of the control unit 2 in the voice guidance unit 1. An interrupt handling routine is shown, which will be described below along with related actions.
This interrupt processing routine is started when any of the “voice guidance reproduction” button 4c, the “forward” button 4d, and the “return” button 4e is operated (“YES” in step S301). After that, the type of the operated button is determined (steps S302, S304, S306). If the operated button is the “voice guidance reproduction” button 4c (“YES” in step S302), the previously reproduced voice information is output again (step S303). If the operated button is the “forward” button 4d (“YES” in step S304), the audio information next to the previously reproduced audio information is output (step S305). Furthermore, when the operated button is the “delay” button 4e (“YES” in step S306), the audio information before the previously reproduced audio information is output (step S307).

  After execution of steps S302 to S307, whether or not a preset time has elapsed after any one of the “voice guidance reproduction” button 4c, the “forward” button 4d, and the “return” button 4e is operated. (Step S308), and when the set time has elapsed, after executing step S309 to reset the relationship between the current vehicle position and the audio information to the original state, the interrupt processing routine is terminated.

  On the other hand, when the set time has not elapsed, it is determined whether or not the host vehicle has reached the next guidance point (step S310). Try again. On the other hand, when the host vehicle reaches the guidance point, the voice information corresponding to the guidance point is output (step S311), and thereafter, the step S309 is executed and the interruption processing routine is terminated.

According to the configuration described so far, the following operations and effects can be achieved.
That is, when the cellular communication unit 9 transmits a service request including the current vehicle position detected based on the positioning information by the GPS receiver 3 and the designated destination by the user from the voice guidance unit 1 to the remote service center 16, it is received. The remote service server 17 provided in the remote service center 16 performs a route search with the vehicle current position and the specified destination included in the received service request as the set departure point and the set destination, respectively, and has been searched. Remote service information corresponding to the route (from the voice guidance tag group including point information indicating the position of the guidance point set in the searched route and voice information in which a predetermined route guidance voice message is assigned to each guidance point. And the remote service information is sent to the voice guidance unit. To sheet 1 will assume a state capable provided through cellular communication unit 9.

  In this case, the voice guidance unit 1 serving as a service request transmission source includes remote service information (including a voice guidance tag group including point information and voice information) that can be provided on the remote service center 16 side. , A process of downloading remote service information including voice guidance tags corresponding to a predetermined section existing in the set destination direction from the current vehicle position and sequentially storing the information in the storage unit 5; the current vehicle position is stored in the storage unit 5; Each time the guide point indicated by the stored point information is reached, the route guidance voice message assigned to the voice information corresponding to the guide point is reproduced and output from the speaker 10, after the vehicle passes the guide point. A voice guidance tag including voice information that has been reproduced and output at every predetermined timing and point information corresponding to the voice information. Process of deleting from 憶部 5, so sequentially executing.

  As a result, every time the host vehicle reaches the guidance point set in the guidance route to the designated destination, the route guidance voice message assigned to each guidance point is reproduced by the speaker 10. Thus, route guidance to the designated destination is performed by voice output. In this case, the guidance route is based on the route search result on the remote service server 17 side, and can improve the accuracy, and every time the own vehicle reaches the guidance point, the route guidance is made by voice. As a result, route guidance with high accuracy is generally possible in a long distance section.

  Further, it is only necessary to provide the control unit 2, the GPS receiving device 3, the storage unit 5, the audio control unit 6, the speaker 10 and the like on the voice guidance unit 1 side. Since it is not necessary to configure as a car navigation device, the cost of the voice guidance unit 1 can be reduced. In this case, since the voice guidance tag including voice information and point information stored in the storage unit 5 is sequentially deleted from unnecessary ones, the storage capacity required for the storage unit 5 may be increased. In this respect, the cost can be reduced.

  The turn signal indicator 11 is provided with a green light emitting part 12a for guiding left turn and a green light emitting part 13a for guiding right turn, and the guidance direction (left turn or right turn direction) indicated by the route guidance voice message output at the guidance point is provided. Since the turn signal indicator 11 is informed by lighting with a color (green) different from the normal color (yellow), the turn signal indicator 11 originally required for the vehicle is used for route guidance by voice guidance. The low-cost configuration can be visually assisted, which is beneficial for improving the reliability of route guidance.

  Since the remote service information download by the voice guidance unit 1 is performed in units of areas (see FIG. 4) defined in a mesh shape by latitude and longitude lines, the degree of freedom of the position where the download is performed Becomes higher. As a result, for example, the remote service information can be downloaded only at the vehicle position where good wireless communication is possible, and the reliability of the download operation can be improved.

  In the voice guidance unit 1, even when the satellite positioning by the GPS receiver 3 is impossible at the time of route guidance to the designated destination, that is, when the current vehicle position cannot be detected, When the estimated time is reached based on the average traveling speed of the vehicle and the estimated time is reached without satellite positioning, the voice in the voice guidance tag corresponding to the guidance point Since voice guidance for outputting information from the speaker 10 is executed, it is useful for preventing a decrease in reliability of voice route guidance.

  Furthermore, if there is a deviation in the estimation of the arrival time to the guidance point as described above, and the current position of the host vehicle and the execution status of the voice guidance are in an inappropriate state, the voice information is changed according to the state. Because the current position of the vehicle and the execution status of the voice guidance are corrected so as to be in an appropriate relationship by skipping down or skipping up, there is an error in the estimated time of arrival at the guidance point. Even if the route information is reproduced, the voice message for route guidance indicated by the voice information corresponding to the guidance point is reproduced after being corrected to the content suitable for the current vehicle position at the time. Can be improved.

  The voice guidance unit 1 is configured to re-execute the process of reproducing and outputting the voice information corresponding to the guidance point by the speaker 10 in accordance with the operation of the “voice guidance reproduction” button 4 c provided on the operation switch unit 4. Thus, the user can easily reconfirm the missed route guidance voice message in accordance with the operation of the “voice guidance reproduction” button 4c. Further, when the “forward” button 4 d provided in the operation switch unit 4 is operated, a process of outputting the audio information next to the previously reproduced audio information from the speaker 10 is performed, and the operation switch unit 4 is provided. When the “return” button 4e is operated, the audio information before the previously reproduced audio information is output from the speaker 10, so that the audio information corresponding to the guidance point of the destination is confirmed in advance or passed. The voice information corresponding to the guidance point can be confirmed after the fact for reference, and as a result, the convenience on the user side can be improved.

  On the other hand, although not specifically illustrated, the control unit 2 is configured to execute control as described in the following <1> to <3> in addition to the control operations described with reference to FIGS. 5, 6, and 8. In the following, such control contents will be described together with the control contents executed on the remote service center 16 side and the effects obtained as a result of the control.

<1> Vehicle Current Position Transmission Control After transmitting the service request to the remote service center 16, the control unit 2 displays vehicle current position information indicating the own vehicle position detected based on the positioning information from the GPS receiver 3. Then, the operation of transmitting through the cellular communication unit 9 to the remote service center 16 is executed at predetermined intervals (performed every time a predetermined time elapses or travels a predetermined distance).

  On the remote service center 16 side, the remote service server 17 maps and monitors the position of the vehicle that is the transmission source of the information based on the received vehicle current position information, and the vehicle is a search route related to the vehicle. When it is detected that the vehicle has deviated from the state (such detection can be automatically performed by a program set in the remote service server 17), the route guidance information is installed in the corresponding vehicle. Send to. Such route departure information may be transmitted by the operator of the remote service server 17 talking directly to the user (vehicle driver) via the cellular communication unit 9. It is good also as a structure which transmits automatically the route deviation information containing the audio | voice message shown concretely. When the route departure information including such a voice message is transmitted, on the voice guidance unit 1 side that receives the route departure information by the cellular communication unit 9, the control unit 2 includes the voice message included in the route departure information. Is controlled to be reproduced and output from the speaker 10.

  That is, when the current position of the vehicle deviates from the guidance route, route deviation information is transmitted from the remote service center 16 side to the voice guidance unit 1, and accordingly, the specific route deviation status of the host vehicle is determined. Since the notification is given to the user, the user side can specifically recognize the deviation state from the guidance route, thereby obtaining the effect that the traveling route of the host vehicle can be accurately corrected. .

  In the case of performing such control, the route deviation information transmitted from the remote service server 17 to the voice guidance unit 1 is configured to include a voice message inquiring whether or not a route re-search is necessary. A function for reproducing and outputting a voice message included in the received route deviation information from the speaker 10 and a function for requesting a route re-search to the remote service center 16 by the user's intention can be added to the guidance unit 1 side. . In this case, the remote service server 17 responds to the operation of the operator who has received the route re-search request, from the vehicle current position indicated by the received latest current position information to the designated destination included in the initial service request. Remote service information including point information indicating the position of the guidance point set in the searched route and voice information in which a predetermined route guidance voice message is assigned to each guidance point. Will be created. The voice guidance unit 1 side downloads such newly created remote service information.

  As a result, on the user side, the route departure state can be reliably recognized by the voice message output from the speaker 10. Further, the user side can selectively request a route re-search to the remote service center 16 based on the recognition result as described above, and when such a re-search request is made, Since the remote service information related to the new guidance route from the current vehicle position can be downloaded from the remote service center 16, the user's anxiety about the departure from the route can be eliminated.

  Note that the corresponding operation on the remote service center 16 side related to the vehicle current position transmission control as described above ends when it is confirmed that the corresponding vehicle has stopped around the designated destination. In this case, the confirmation that the vehicle has stopped is, for example, when the vehicle engine is stopped on the vehicle side, or when a predetermined time elapses with the vehicle parking brake being operated, the vehicle speed signal continues for a predetermined time or more. If the stop signal is not output, a function for transmitting a stop signal indicating that to the remote service center 16 side is added, and the remote service center 16 recognizes the stop signal.

<2> Support request control The “help” button 4f provided on the operation switch unit 4 is operated when the user (vehicle driver) gets lost. The control unit 2 controls the “help” button 4f. When is operated, a support request including the current position information of the host vehicle is transmitted from the cellular communication unit 9 to the remote service center 16. On the remote service center 16 side that has received this support request, the operator of the remote service server 17 performs a process of providing guidance such as the direction in which the vehicle should travel based on the information in the reception support request by the cellular communication unit 9. It will be. As a result, the user can receive appropriate advice even when he / she gets lost, which is useful for improving the reliability of the system.

<3> Out-of-communication adaptive control When the information download area for remote service information is outside the communication area with the base station 15 via the cellular communication unit 9, the remote service information can be normally downloaded. It becomes difficult. Therefore, for example, when the initial remote service information is downloaded from the remote service center 16 side, the location information about the non-communication area overlapped with the information download area is acquired at the same time, and the traveling vehicle is moved to the information download area. Communication that downloads the remote service information that should be originally downloaded in the information download area at a point in time before entering the superimposed out-of-communication area for a predetermined time (time that takes the time required to download the remote service information) Perform out-of-service adaptive control.

  The specific contents of the out-of-service adaptive control will be described with reference to FIG. FIG. 4 shows an example in which the out-of-communication area A1 is superimposed on the area corresponding to the guidance point p8 (the area immediately after the voice guidance at the guidance point p8 is completed) in the information download area. In the case of the present embodiment, in the information download area corresponding to the guidance point p8, the remote service information related to the area unit C is originally deleted from the storage unit 5 and the remote service information related to the area unit E is downloaded. In the out-of-communication adaptive control, the voice guidance tag corresponding to the guidance point p8 is excluded from the remote service information related to the area unit C at the download point p8 ′ before the out-of-communication area A1. Other information is erased from the storage unit 5, and the remote service information related to the region unit E is downloaded and newly stored. As a result, even when there is an out-of-service area with the base station 15 via the cellular communication unit 9 in the guide route, the remote service information can be reliably downloaded via the cellular communication unit 9.

(Second Embodiment)
FIG. 9 shows a second embodiment of the present invention, and only the parts different from the first embodiment will be described below. This second embodiment is provided to the voice guidance unit 1 from the remote service center 16 side. When a trouble location such as traffic congestion or traffic closure occurs on the searched route, the remote service center 16 that has received such failure location information searches for a new route that avoids the failure, This is characterized in that a route re-search control function of providing the remote service information to the voice guidance unit 1 is provided, and thereby, high added value of the route guidance operation of the vehicle can be realized.

  The flowchart of FIG. 9 shows the contents of the route re-search control performed on the remote service center 16 side and the response control contents performed on the voice guidance unit 1 side in relation to this. In FIG. 9, the remote service center 16 side determines whether or not a route re-search is necessary on the search route provided to the voice guidance unit 1 due to occurrence of a troubled part such as traffic jam or traffic closure ( When it is determined that it is necessary (step S401), it is determined whether or not it is necessary to inquire the user of the necessity of route re-search (step S402). In this step S402, if the cause of the fault location is one that can pass through the fault location such as occurrence of traffic jam or accident, it is determined as “YES”, and if the cause of the fault location is closed Will be determined as “NO”.

  If “NO” is determined in the step S402, a route re-search to the designated destination is executed in a step S403, remote service information corresponding to the searched route is created, and the remote service information is used as the voice guidance unit 1 After step S404 which presents a state that can be provided through the cellular communication unit 9 is sequentially executed, the process proceeds to determination step S406. On the other hand, if “YES” is determined in the step S402, an inquiry is made to the voice guidance unit 1 as to whether or not a route re-search is performed (step S405). The inquiry may be automatically made by the remote service server 17 or may be made by the operator.

  When the voice guidance unit 1 receives the inquiry, the user responds whether or not the route re-search is necessary (step S501), and when the remote service center 16 responds that it is necessary. After executing the route re-search step S403 and the remote service information creation step S404, the process proceeds to the determination step S406, and when there is a response that it is unnecessary, the route re-search step S403 and the remote information creation step Jumping to S404, the process proceeds to the determination step S406.

  The determination step S406 is also executed when “NO” is determined in step S401. Here, it is determined whether or not a service disconnection request has been received from the voice guidance unit 1, and the disconnection request has been received. If it is found, the route re-search control is terminated. If there is no service disconnection request, it is determined whether or not the vehicle has reached the vicinity of the designated destination (step S407). If the vehicle has not reached, the processing from step S401 is executed again. If it has been reached, the route search control is terminated.

  In the second embodiment, when the remote service information provided by the route re-search is already downloaded on the voice guidance unit 1 side, the guide route must be changed within the area corresponding to the downloaded remote service information. When a condition that must be generated occurs, the remote service center 16 informs the voice guidance unit 1 that a route re-search is necessary, and when the voice search unit 1 returns a re-search request, the vehicle It is desirable to adopt a configuration in which the route from the current position to the designated destination is re-searched and remote service information is created.

(Third embodiment)
FIG. 10 shows a third embodiment of the present invention. Hereinafter, only portions different from the first embodiment will be described.
In other words, the third embodiment is characterized by the form of area units for dividing the remote service information created by the remote service server 17. FIG. 10 shows the relationship between the search route Y (shown by a bold line) from the set departure point to the set destination and the guide points (p1 to p18). The remote service server 17 is a point corresponding to the remote service information. A voice guidance tag including information and voice information is created in a form that can be divided for each area unit (indicated by reference numerals H to L in FIG. 10) defined based on the size of the data amount. It is configured.

  According to such a configuration, downloading of the remote service information by the voice guidance unit 1 is performed in units of regions (in the example of FIG. 10, units of regions H to L) defined based on the amount of data of the information. Since this is performed every time, it is possible to prevent a situation in which the amount of download information becomes excessive once. As a result, the possibility that the download of the remote service information is interrupted due to a communication failure or the like is reduced, the reliability of the download operation is improved, and the storage capacity required for the storage unit 5 can be reduced. .

(Fourth embodiment)
FIG. 11 shows a fourth embodiment of the present invention. Hereinafter, only portions different from those of the first embodiment will be described.
In other words, the fourth embodiment is a modification of the voice guidance control interrupt processing routine (see FIG. 8) in the first embodiment, which makes it possible to improve operability. Specifically, in FIG. 10, when it is determined that the “forward” button 4d has been operated (“YES” in step S304), it is determined whether or not the operation is a long press state (step S312). . If it is not in the long press state, the processing from step S305 onward is executed in the same manner as in the first embodiment, but if it is in the long press state, the audio information group after the previously reproduced audio information is continuously displayed. (Step S313), and then waits until the “voice guidance reproduction” button 4c is operated (step S314). When the “voice guidance playback” button 4c is operated from this state, the continuous playback of the voice information group is stopped (step S315), and thereafter, the processing after step S306 is executed.
Note that when the “return” button 4e is pressed for a long time, an operation of continuously reproducing the audio information group before the previously reproduced audio information in a retroactive form may be performed.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and for example, the following modifications or expansions are possible.
The function of the position detecting means for detecting the current position of the host vehicle is provided to the control unit 2 that receives the positioning information from the GPS receiver 3, but it is needless to say that the present invention is not limited to this. For example, if a configuration using gpsOne (registered trademark) is used, the vehicle current position is detected on the base station 15 side using a signal from a GPS receiver built in the mobile phone.

  A simple type display device may be mounted on the vehicle, and the display device may be configured to display the traveling direction of the vehicle indicated by the voice guidance in a state synchronized with the voice guidance based on the voice information. In addition, when there is information such as a specific facility in the downloaded remote service information, it is also possible to display the information on the display device.

The functional block diagram which shows the electric constitution of the principal part in 1st Example of this invention. The figure which shows the button arrangement of the operation switch part Schematic configuration diagram of the entire system Schematic diagram for explaining the division form of remote service information Flow chart showing contents of control by control unit (part 1) Flow chart showing contents of control by control unit (part 2) Schematic diagram for explaining the main part of the control content by the control unit Flow chart showing contents of control by control unit (part 3) The flowchart which shows the content of the route re-search control in 2nd Example of this invention. FIG. 4 equivalent view showing a third embodiment of the present invention. FIG. 8 equivalent view showing the fourth embodiment of the present invention.

Explanation of symbols

  1 is a voice guidance unit (in-vehicle remote service terminal), 2 is a control section (control means, position detection means), 3 is a GPS receiver (satellite positioning means), 4 is an operation switch section, and 4c is “voice guidance reproduction”. Buttons (operation means), 5 is a storage section (data storage means), 6 is an audio control section (voice output means), 9 is a cellular communication section (wireless communication means), 14 is a vehicle, 16 is a remote service center, 17 is Indicates a remote service server.

Claims (8)

In a vehicle remote service system comprising a vehicle-mounted remote service terminal having a wireless communication function and a remote service center that provides a predetermined remote service to the vehicle-mounted remote service terminal by wireless communication,
Provided on the in-vehicle remote service terminal side is a position detection means for detecting the current position of the host vehicle, a data storage means and a voice output means,
A function for searching the remote service center for a route from the set departure point to the set destination, point information indicating the position of the guide point set in the route searched by the search function, and predetermined for each guide point A remote service server having a function of creating remote service information including voice information to which a voice message for route guidance is assigned;
The in-vehicle remote service terminal is configured to be able to transmit a service request including a vehicle current position detected by the position detection means and a designated destination by a user to the remote service center by wireless communication,
When the remote service center receives the service request, the remote service server performs a route search using the current vehicle position and the specified destination included in the service request as the set departure point and the set destination, respectively. And creating the remote service information corresponding to the searched route, configured to present the remote service information to the in-vehicle remote service terminal by wireless communication,
In the in-vehicle remote service terminal that is the transmission source of the service request,
Of the remote service information, point information and voice information corresponding to a predetermined section existing in the designated destination direction from the current vehicle position indicated by the position detection means are downloaded in time series and stored in the data storage means. Processing,
A process of reproducing and outputting audio information corresponding to the guidance point by the audio output unit every time the vehicle current position indicated by the position detection unit reaches the guidance point indicated by the point information stored in the data storage unit;
A process of erasing the audio information reproduced and output at each predetermined timing after the host vehicle passes the guidance point and the corresponding point information from the data storage means;
A remote service system for a vehicle characterized by sequentially executing. The remote service server is configured to create point information and audio information corresponding to the remote service information in a form that can be divided in units of areas defined in a mesh shape by latitude lines and longitude lines,
2. The vehicle remote service system according to claim 1, wherein the in-vehicle remote service terminal executes time-series download of point information and audio information corresponding to the predetermined section for each area unit. The remote service server is configured to create point information and audio information corresponding to the remote service information in a form that can be divided in units of areas defined on the basis of the data amount of the information,
2. The vehicle remote service system according to claim 1, wherein the in-vehicle remote service terminal executes time-series download of point information and audio information corresponding to the predetermined section for each area unit. The in-vehicle remote service terminal is configured to execute an operation of transmitting vehicle current position information detected by the position detection means to the remote service center by wireless communication at predetermined intervals.
The remote service server monitors the position of the vehicle that is the transmission source of the information based on the current vehicle position information received by the remote service center, and the vehicle is in a state of deviating from the search route related to the vehicle. 4. The vehicle remote service system according to claim 1, wherein the route deviation information is transmitted by wireless communication to an in-vehicle remote service terminal mounted on the vehicle. The route deviation information transmitted from the remote service server is configured to include a voice message inquiring whether route re-search is necessary,
When the route deviation information is received, the in-vehicle remote service terminal reproduces and outputs the voice message included in the information by the voice output means, and wirelessly sends a route re-search request to the remote service center. The function to send by communication is set,
The remote service server includes the vehicle current position and the initial service request indicated by the latest vehicle current position information received from the in-vehicle remote service terminal when the remote service center receives the route re-search request. A route search using the designated destination as the set departure point and the set destination, respectively, creating the remote service information corresponding to the searched route, and using the remote service information as the in-vehicle remote service terminal The vehicle remote service system according to claim 4, wherein the vehicle remote service system is configured to exhibit a state that can be provided by wireless communication. In the vehicle remote service terminal used in the vehicle remote service system according to claim 1,
Position detecting means for detecting the current position of the host vehicle;
Wireless communication means capable of wireless communication with a vehicle remote service center;
Data storage means for storing remote service information downloaded from a vehicle remote service center by wireless communication;
Audio output means for outputting audio toward the vehicle occupant;
Control means connected to the position detection means, wireless communication means, data storage means and voice output means;
With
The control means includes
A process of transmitting a service request including a vehicle current position detected by the position detecting means and a designated destination by a user to the remote service center by the wireless communication means;
Of the remote service information created in response to the reception of the service request on the remote service center side, point information corresponding to a predetermined section existing in the designated destination direction from the current vehicle position indicated by the position detecting means, and A process of downloading voice information in a time series through the wireless communication means and storing it in the data storage means;
A process of reproducing and outputting audio information corresponding to the guidance point by the audio output unit every time the vehicle current position indicated by the position detection unit reaches the guidance point indicated by the point information stored in the data storage unit;
A process of erasing the audio information reproduced and output at each predetermined timing after the host vehicle passes the guide point and the corresponding point information from the data storage means;
The in-vehicle remote service terminal is characterized by sequentially executing. The position detection means is configured to detect the current position of the host vehicle based on positioning information by the satellite positioning means,
When the satellite positioning by the satellite positioning unit is impossible, the control unit uses the average travel speed of the host vehicle as the time when the host vehicle reaches the guide point indicated by the point information stored in the data storage unit. 7. The in-vehicle remote service terminal according to claim 6, wherein when the estimated time is reached, the audio output corresponding to the guidance point is reproduced and output by the audio output means. . Comprising operating means operated by a user;
The in-vehicle device according to claim 6 or 7, wherein the control unit is configured to re-execute processing for reproducing and outputting the audio information by the audio output unit in accordance with an operation of the operation unit. Remote service terminal.

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