JP5151385B2 - OBE and speech priority method - Google Patents

Description

  The present invention relates to a vehicle-mounted device and a speech priority method.

  Currently, in navigation systems, an ITS (Intelligent Transport System) vehicle-mounted device that includes a car navigation unit and a DSRC (Dedicated Short-Range Communication) unit is installed in the vehicle, and ETC ( Various services including Electronic Toll Collection system (Non-stop automatic fee payment system) and VICS (Vehicle Information and Communication System) are provided.

The vehicle-mounted device provided with the DSRC unit can perform wireless communication with roadside wireless devices scattered on a road or the like, and can communicate with the center device via the roadside wireless device. The center device manages and stores necessary information for each vehicle-mounted device, and distributes the information to the vehicle-mounted device. Information that the center device delivers to the vehicle-mounted device on a one-to-one basis is referred to as content information here.
Since DSRC can distribute content information, the user can receive various services from the center apparatus according to individual preferences.

As an example of a service by DSRC, warning information for supporting safe driving can be provided to a user. The warning information is one piece of information included in the content information, and the format is mainly based on image information or audio information.
According to this warning information, the user can receive highly reliable and useful information according to actual road conditions and the traveling speed of the vehicle.

When this warning information is provided to the user, for example, the roadside wireless device is placed in advance in front of a curve or in a place with poor visibility. And if the vehicle carrying onboard equipment approaches the area | region which can carry out radio | wireless communication with a roadside radio | wireless apparatus, a center apparatus will distribute the information about an actual road condition to onboard equipment via a roadside radio | wireless apparatus.
Moreover, the center apparatus can acquire information on the approach speed of the vehicle from the vehicle-mounted device. Therefore, when it is judged that it is dangerous based on the acquired approach speed information, warning information can be distributed toward the vehicle-mounted device (see Patent Document 1 and Patent Document 2).
JP 2002-260191 A JP 2001-109993 A

  Here, according to the vehicle-mounted device described in Patent Documents 1 and 2, the vehicle-mounted device functions as a car navigation system and also functions as a DSRC. The car navigation unit and the DSRC unit that control both operate independently of each other. Therefore, the content uttered by the car navigation unit may be the same as the content uttered by the DSRC unit.

More specifically, after the DSRC unit utters “There is a curve before 500 m”, the car navigation unit utters “There is a curve before 300 m”.
In such a case, the user will hear voice guidance with the same content every few seconds, which is troublesome.

  The subject of this invention is providing the vehicle equipment which can prevent performing the speech of the same content redundantly.

According to the invention of claim 1,
Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
Equipped with a,
When the control means calculates a distance between the vehicle and the roadside wireless device based on the position information stored in the position storage means, and determines that the calculated distance is within a predetermined distance the vehicle-mounted device which is characterized that you control so as not to output the content information of the guide information and the storage-type is provided.
According to invention of Claim 2,
Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
With
The control means calculates a time until the vehicle reaches the position of the roadside wireless device based on the position information stored in the position storage means, and the calculated time is within a predetermined time. When it is determined that there is a vehicle-mounted device, control is performed so that the guidance information and the storage-type content information are not output.
According to invention of Claim 3,
Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
With
The control means is configured such that the distance between the vehicle and the roadside wireless device is within a predetermined distance based on the position information stored in the position storage means, and the vehicle is connected to the roadside wireless device. An on-vehicle device is provided that performs control so that the guidance information and the storage-type content information are not output when it is determined that the time to reach the position is within a predetermined time. The

According to invention of Claim 4 , in invention of any one of Claims 1-3,
And further comprising storage means for storing the content information received by the receiving means,
The control means, when receiving the immediate type content information by the receiving means, controls the output means to output the immediate type content information without storing it in the storage means, and stores the storage A vehicle-mounted device is provided that performs control so as to be temporarily stored in the storage means when receiving type content information.

According to the invention described in claim 5 , in the invention described in any one of claims 1 to 4 ,
A display means for displaying map information;
The on-board device is characterized in that the control means performs control so as to display the position of the roadside wireless device superimposed on the map information based on the position information stored in the position storage means.

According to the invention described in claim 6,
An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, a distance between the vehicle and the roadside wireless device is calculated based on the position information stored in the position storage step, and it is determined that the calculated distance is within a predetermined distance Provides an utterance priority method characterized by controlling not to output the guidance information and the storage type content information.
According to invention of Claim 7,
An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, a time until the vehicle reaches the position of the roadside wireless device is calculated based on the position information stored in the position storage step, and the calculated time is within a predetermined time. If it is determined that there is, an utterance priority method is provided, wherein control is performed so as not to output the guidance information and the storage type content information.
According to invention of Claim 8,
An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, the distance between the vehicle and the roadside wireless device is within a predetermined distance based on the position information stored in the position storage step, and the vehicle is connected to the roadside wireless device. Provided is an utterance priority method characterized by controlling not to output the guidance information and the storage type content information when it is determined that the time to reach the position is within a predetermined time. Is done.

According to the present invention, the vehicle-mounted device acquires position information indicating an arrangement position of the roadside apparatus. And based on this position information, either one of the audio content by the DSRC unit and the audio content by the car navigation unit is output as audio. Therefore, it is possible to prevent the same content from being output in the same period.
By preventing redundant audio from being output with the same content, the user can eliminate the annoyance of hearing the same content.

  Hereinafter, the configuration and operation of an optimal embodiment of the vehicle-mounted device according to the present invention will be described in detail with reference to the drawings.

First, FIG. 1 shows an overall view of an information distribution system 100 in the present embodiment.
The information distribution system 100 includes an in-vehicle device 10, a roadside device 20, and a center device 30.

  The vehicle-mounted device 10 is a vehicle-mounted device including a car navigation unit and a DSRC unit (see FIG. 3), and is installed at a predetermined position in the target vehicle C.

  The car navigation unit can receive services such as VICS mainly through three media via the VICS module 2. The three media are FM multiplex broadcast, optical beacon, and radio wave beacon. Up to the present, any media is provided with services by the vehicle-mounted device 10 receiving various information in one direction.

  On the other hand, the DSRC unit can perform active two-way communication using the 5.8 GHz band, and is used in, for example, ETC.

  The roadside apparatus 20 is disposed on a road or in a parking lot, and performs bidirectional communication with the DSRC unit of the vehicle-mounted device 10 using the 5.8 GHz band. By making the communication distance as small as several meters to several tens of meters and narrowing the cell radius, it is possible to reliably communicate with each one of the vehicle-mounted devices 10.

From this, for example, it can be prevented that the roadside radio apparatus 20 catches radio waves from the DSRC unit other than the car passing through the gate at a toll gate on an expressway, and correct charging cannot be performed.
Moreover, since the same 5.8 GHz band is utilized for every small division, a frequency resource can be used effectively. Furthermore, it is possible to provide services closely related to the location where the user is present, such as regional information and weather information.

  The center device 30 stores information to be provided to the vehicle-mounted device 10. The center apparatus 30 is connected to the roadside apparatus 20 via the network N. When the vehicle-mounted device 10 and the roadside apparatus 20 start bidirectional communication by DSRC, the center apparatus 30 receives a connection start notification from the roadside apparatus 20. And the center apparatus 30 will transmit the required information which the onboard equipment 10 requests | requires to the roadside apparatus 20, and this onboard equipment 10 will receive.

FIG. 2 shows an example of a basic configuration of DSRC communication between the vehicle-mounted device 10 and the roadside apparatus 20.
It is assumed that the target vehicle C includes the vehicle-mounted device 10 and travels at a low speed or stops so that the center device 30 and the vehicle-mounted device 10 communicate one-on-one. When the target vehicle C is in an area where communication with the roadside apparatus 20 is possible, the roadside apparatus 20 starts wireless communication with the vehicle-mounted device 10 in both directions. Note that the communicable area is a region having a cell radius of about several meters to several tens of meters as described above.

In FIG. 3, the functional block diagram of the onboard equipment 10 is shown.
The vehicle-mounted device 10 is roughly composed of a car navigation unit 1, a VICS module 2, a DSRC unit 3, and a control unit 4. In general, these may be collectively referred to as an ITS vehicle-mounted device.

  The car navigation unit 1 mainly includes a car navigation control unit 1a, a current location detection unit 1b, a map storage unit 1c, an input unit 1d, a display unit 1e, and a storage unit 1f.

The car navigation control unit 1a receives the current location of the target vehicle C output from the current location detection unit 1b. And it matches with the road shape of the map information output from the map memory | storage part 1c, and displays a map screen and the present vehicle position mark on the display part 1e. Further, the vehicle position mark is displayed on the map, and guidance information related to the traveling of the target vehicle C is generated in advance and stored in the storage unit 1f.
The guidance information includes, for example, warning information such as “There is a sharp curve 300 meters ahead”, route information for guiding a route to the destination set by the user, and the like. The guidance information is output as voice (uttered) via the voice output unit 5 described later. In addition, although there exist image information and audio | voice information in the format of guidance information, it shall mainly show audio | voice information here.

  The input unit 1d includes hard keys such as various keys for performing a designated input such as a navigation operation, and keys for instructing switching of the display of the audio menu. To the unit 1a.

  The display unit 1e is configured by a monitor and / or a touch panel. The display unit 1e is configured by an LCD (Liquid Crystal Display) or the like, and performs display processing according to a display signal input from the car navigation control unit 1a.

  The storage unit 1f includes a recording medium in which programs, data, and the like are stored in advance. The storage unit 1f stores various control programs executed by the car navigation control unit 1a, data used when executing these control programs, and the like on this recording medium.

  The VICS module 2 is mainly composed of modules having three VICS functions, and receives traffic jam information and emergency information. The three VICS functions are an optical beacon using optical communication, FM multiplex broadcasting using FM communication, and a radio beacon using radio communication.

The optical beacon receives information providing services on general roads using infrared rays. Since the maximum communication distance is as short as about 3.5 m, it is possible to receive individual information for each lane. It can also be used for bidirectional communication. Optical beacons are managed by the National Police Agency.
FM multiplex broadcasting can be received anywhere within radio wave reception areas such as FM broadcasting stations in various places.
The radio beacon receives information providing services mainly on highways using radio waves in the 2.4 GHz band. The maximum communication distance is about 70 m, and the data transmission rate is as low as 64 kbit / s. (There is a plan to shift the frequency band used by radio beacons from 2.4 GHz band to 5.8 GHz band and unify with DSRC from 2007.) With DSRC, the data transmission speed will be 4 Mbit / s. Increasingly, two-way communication is also possible.

  The DSRC unit 3 includes a DSRC control unit 3a, a communication unit 3b, a storage unit 3c, an ETC processing unit 3e, and an IC card I / F unit 3f.

  The DSRC control unit 3a comprehensively controls each unit of the DSRC unit 3 in cooperation with various control programs stored in the storage unit 3c. Further, the DSRC control unit 3a temporarily stores the content information received from the center device 30 via the communication unit 3b in the storage unit 3c, and displays the content information on the display unit 1e or causes the audio output unit 5 to speak. .

  The communication unit 3b includes an antenna unit (not shown), and receives an RF (Radiology Frequency) signal having a frequency of 5.8 GHz. Then, the received RF signal is demodulated and transmitted to the DSRC control unit 3a. On the contrary, the data transmitted from the DSRC control unit 3a is received and transmitted via the antenna unit. The transmitted data is received by the roadside apparatus 20.

  The storage unit 3c includes a recording medium in which programs, data, and the like are stored in advance. The storage unit 3c stores various control programs executed by the DSRC control unit 3a, information used when these control programs are executed, and the like.

  The ETC processing unit 3e exchanges information required for fee settlement with the toll gate by wireless communication in the 5.8 GHz band. Necessary information includes information on the target vehicle C, entrance toll gate, exit toll booth, toll, etc., and the ETC processing section 3e uses the IC card inserted in the IC card I / F section 3f. Read from and write to.

  The IC card I / F unit 3f stores an IC card in which card-specific information is written in advance so that it can be inserted and removed. For information necessary when using the ETC, the ETC processing unit 3e acquires information written in the IC card via the IC card I / F unit 3f. In addition, a history such as a charge can be stored in the IC card, and the ETC processing unit 3e writes this history via the IC card I / F unit 3f.

The control unit 4 controls the car navigation unit 1, the VICS module 2, and the DSRC unit 3 as described above.
Further, the control unit 4 causes the voice output unit 5 described later to speak the guidance information from the car navigation unit 1 and the content information from the DSRC unit 3.

  The audio output unit 5 includes a D / A converter, an AF amplifier, a speaker, and the like. The audio output unit 5 D / A converts and amplifies the guidance information from the car navigation unit 1 and the content information from the DSRC unit 3, and drives the speaker using the obtained analog audio signal. Thereby, guidance information and content information are uttered.

Next, the processing operation performed by the vehicle-mounted device 10 in the present embodiment will be described.
First, with reference to FIG. 4, basic processing in which the vehicle-mounted device 10 utters immediate content information received by the DSRC unit 3 will be described.
The content information includes an immediate type and an accumulation type. In the case of the immediate type, the content information is displayed or spoken without being stored in the storage unit 3c. In general, immediate information is important information, and includes information that should be notified to the user as soon as possible. On the other hand, in the case of the accumulation type, it is temporarily stored in the storage unit 3c and displayed or uttered at a predetermined timing.

  After the vehicle-mounted device 10 is turned on (step S1), when the DSRC unit 3 receives the content information, the control unit 4 determines whether or not the content information is an immediate type (step S2).

When the received content information is not immediate type (step S2; NO), the control unit 4 stands by until immediate content information is received from the roadside apparatus 20.
When the received content information is immediate (step S2; YES), the control unit 4 generates position information in which the current position of the target vehicle C detected by the current position detection unit 1b is the position of the roadside apparatus 20, and this Is stored in the storage unit 3c (step S3).
By the processing in step S3, the vehicle-mounted device 10 stores the position of the roadside apparatus 20 that transmits the immediate content information every time it performs wireless communication.

  After storing the position information in step S3, the control unit 4 performs a reproduction process for the immediate content information (step S4).

In order to explain S4, FIG. 12 shows a flow of processing for reproducing immediate content information.
First, the control unit 4 turns off the reproduction permission flag for guidance information by the car navigation unit 1 (step S81).

Here, the control unit 4 manages the reproduction request flag, the reproduction permission flag, and the reproduction execution flag, and executes the reproduction processing of the content information and the guidance information based on these managed flags.
The reproduction request flag is a flag for requesting reproduction when the information is reproduced. When the reproduction request flag is turned on by the control unit 4, the control unit determines whether or not the reproduction permission flag is reproduced. Perform in step 4. The reproduction permission flag is a flag that permits reproduction of information, and the reproduction execution flag is a flag for reproducing information. When the reproduction permission flag is turned on, the reproduction execution flag is turned on in order to execute reproduction. Since the information is not reproduced when the reproduction request flag is turned off, both the reproduction permission flag and the reproduction execution flag are turned off. The flag is switched ON / OFF depending on which information is preferentially reproduced.
For example, when the guidance information is reproduced by the car navigation unit 1, the control unit 4 turns on the reproduction request flag of the car navigation unit 1. Further, the control unit 4 determines whether or not the reproduction request flag of the immediate type or storage type content information is ON. For the storage type content information, the reproduction permission flag is set to ON for the information to be reproduced. Note that the immediate type content information is reproduced within one second after reception, and therefore only the reproduction execution flag exists.
For information that is not requested for reproduction, the control unit 4 turns off the reproduction permission flag, and also turns off the reproduction execution flag after a predetermined time.

  The control unit 4 determines whether or not the reproduction execution flag of the guidance information by the car navigation unit 1 is OFF (step S82).

When the reproduction execution flag of guidance information is ON (step S82; NO), the control unit 4 turns off the reproduction execution flag of guidance information (step S83).
On the other hand, when the reproduction execution flag of the guidance information is OFF (step S82; YES), the control unit 4 turns off the reproduction permission flag of the storage type content information (step S84).

  The control unit 4 determines whether or not the reproduction execution flag of the accumulation type content information by the DSRC unit 3 is OFF (step S85).

When the reproduction execution flag of the storage type content information is ON (step S85; NO), the control unit 4 turns off the reproduction execution flag (step S86).
On the other hand, when the reproduction execution flag of the storage type content information is OFF (step S85; YES), the control unit 4 turns on the reproduction execution flag of the immediate type content information (step S87).
Then, the control unit 4 causes the audio output unit 5 to reproduce the immediate content information received by the DSRC unit 3 (step S88).

  When determining that the reproduction of the immediate type content information has been completed (step S89; YES), the control unit 4 turns off the reproduction execution flag of the immediate type content information (step S90), and sets the immediate type content information. The playback process ends. Thereafter, the process proceeds to step S5 in FIG.

  Returning to FIG. 4, when the vehicle-mounted device 10 is turned off (step S <b> 5; YES), the immediate content information reproduction process is terminated.

Next, a basic process in which the vehicle-mounted device 10 reproduces the guidance information from the car navigation unit 1 will be described with reference to FIG.
After the vehicle-mounted device 10 is turned on (step S11), the control unit 4 determines whether there is instruction information for requesting reproduction of the guidance information from the car navigation unit 1 (step S12).

When there is instruction information for requesting reproduction of the guidance information (step S12; YES), the control unit 4 turns on the reproduction request flag for the guidance information (step S13).
When there is no instruction information for requesting reproduction of the guidance information (step S12; NO), the control unit 4 determines whether or not the guidance information reproduction request flag is ON (step S14).
When the reproduction request flag is OFF (step S14; NO), the control unit 4 stands by until the instruction information is received.
On the other hand, when the reproduction request flag of guidance information is ON (step S14; YES), the control unit 4 proceeds to the next process.

When the reproduction request flag is ON, the control unit 4 performs a process of confirming the position information of the roadside apparatus 20 that transmits immediate content information (step S15). Note that the position information confirmation processing in step S15 will be described later with reference to FIGS.
And the control part 4 performs a reproduction | regeneration process about guidance information (step S16).

Here, in order to describe S16, the guidance information reproduction process will be described with reference to FIG.
The control unit 4 determines whether or not the reproduction permission flag of the guidance information is ON (step S91).
When the guidance information reproduction permission flag is OFF (step S91; NO), the control unit 4 turns off the guidance information reproduction execution flag (step S92), and then turns off the guidance information reproduction request flag (step S93). ), The reproduction processing of the guide information is terminated.

On the other hand, when the reproduction permission flag of the guidance information is ON (step S91; YES), the control unit 4 turns off the reproduction permission flag of the storage type content information (step S94).
Next, the control unit 4 determines whether or not the reproduction execution flag of the storage type content information is OFF (step S95).

  When the reproduction execution flag of the accumulation type content information is ON (step S95; NO), the control unit 4 turns off the reproduction execution flag of the accumulation type content information (step S96).

  On the other hand, when the reproduction execution flag of the storage type content information is OFF (step S95; YES), the control unit 4 turns on the reproduction execution flag of the guidance information (step S96) and reproduces the guidance information (step S97). ).

  The controller 4 determines whether or not the reproduction permission flag for the guidance information is ON during the reproduction of the guidance information (step S98).

When the reproduction permission flag for the guidance information is turned off during the reproduction of the guidance information (step S98; NO), the control unit 4 stops the reproduction of the guidance information (step S99).
If the reproduction permission flag of the guidance information is ON during the reproduction of the guidance information (step S98; YES), the control unit 4 performs the reproduction of the guidance information until completion.

  When determining that the reproduction of the guidance information has been completed (step S100; YES), the control unit 4 turns off the reproduction execution flag and the reproduction request flag of the guidance information (steps S92 and S93), and performs the reproduction process of the guidance information. finish. Thereafter, the process proceeds to step S16 in FIG.

  Returning to FIG. 5, when the vehicle-mounted device 10 is turned off (step S <b> 17; YES), the guidance information reproduction process is terminated.

Next, with reference to FIG. 6, basic processing for reproducing storage type content information will be described.
First, when the vehicle-mounted device 10 is powered on (step S21) and the DSRC unit 3 receives content information, the control unit 4 determines whether or not the content information is a storage type (step S22).

When the received content information is accumulation type (step S22; YES), the control unit 4 stores the accumulation type content information in the storage unit 3c (step S23).
If the received content information is not a storage type (step S22; NO), the control unit 4 proceeds to the next process without saving the received content information in the storage unit 3c.

The control unit 4 determines whether there is content information at the timing of reproduction among the storage type content information stored and stored so far in the storage unit 3c (step S24).
Note that the reproduction timing information is included in the storage type content information. The control unit 4 reproduces the content information based on the reproduction timing information, for example, when the target vehicle C reaches a predetermined position or when a predetermined time elapses after being stored in the storage unit 3c. Let

If there is content information at the timing of reproduction in the storage unit 3c (step S24; YES), the control unit 4 turns on a reproduction request flag for content information (step S25).
When there is no content information at the timing of reproduction in the storage unit 3c (step S24; NO), it is determined whether or not the reproduction request flag of the storage type content information is ON (step S26).
When the reproduction request flag of the storage type content information is not ON (step S26; NO), the control unit 4 stands by until the next content information is received.
On the other hand, when the reproduction request flag of the storage type content information is ON (step S26; YES), the control unit 4 proceeds to the next process.

After turning on the reproduction request flag, the control unit 4 performs a confirmation process for confirming the position information of the roadside apparatus 20 that transmits immediate type content information (step S27). Note that the position information confirmation processing in step S27 will be described later with reference to FIGS.
And the control part 4 performs a reproduction | regeneration process about storage type content information (step S28).

Here, in order to explain S28, the reproduction processing of the storage type content information will be explained with reference to FIG.
The control unit 4 determines whether or not the reproduction permission flag of the storage type content information is ON (step S111).

  When the reproduction permission flag of the accumulation type content information is OFF (step S111; NO), the control unit 4 turns off the reproduction execution flag of the accumulation type content information (step S112). Then, the control unit 4 turns off the reproduction request flag for the storage type content information (step S113), and ends the reproduction processing for the main storage type content information.

On the other hand, when the reproduction permission flag of the storage type content information is ON (step S111; YES), the control unit 4 turns on the reproduction execution flag of the storage type content information (step S114).
And the control part 4 reproduces | regenerates accumulation type content information (step S115).

  The controller 4 determines whether or not the storage type content information playback permission flag is ON during playback of the storage type content information (step S116).

When the reproduction permission flag of the storage type content information is turned off (step S116; NO), the control unit 4 stops the reproduction of the storage type content information (step S117).
When the reproduction permission flag of the accumulation type content information is ON (step S116; YES), the control unit 4 performs the reproduction of the accumulation type content information until completion.

  When determining that the reproduction of the storage type content information has been completed (step S118; YES), the control unit 4 turns off the reproduction execution flag and the reproduction request flag of the storage type content information (steps S112 and S113). The reproduction processing of the storage type content information is finished. Thereafter, the process proceeds to step S10 in FIG.

Returning to FIG. 6, when the vehicle-mounted device 10 is turned off (step S <b>29; YES), the storage type content information reproduction process is terminated.
Through the above processing, the vehicle-mounted device 10 reproduces the storage type content information at a timing to be reproduced.

  Next, with reference to FIGS. 7 to 11, the position information confirmation processing of the roadside apparatus 20 performed in step S15 of FIG. 5 and step S27 of FIG. 6 will be described. The position information confirmation process described below is a process for confirming the position of the roadside apparatus 20 that has transmitted immediate content information.

FIG. 7 shows the first position information confirmation process.
First, the control unit 4 determines whether or not the roadside apparatus 20 that transmits immediate type content information exists within the radius r1 of the target vehicle C (step S31).

  Here, the current location information of the target vehicle C serving as a reference is generated by the car navigation unit 1 and is acquired by the control unit 4. And the positional information on the roadside apparatus 20 used as judgment object is memorize | stored in the memory | storage part 3c by the process in FIG.4 S3, and the control part 4 reads this. Therefore, the control unit 4 can perform the determination process in step S31 based on the current location information of the target vehicle C and the position information of the roadside apparatus 20. Information on the radius r1 that is a predetermined distance may be stored in advance in the storage unit 3c, or may be arbitrarily set via the input unit 1d.

  When the roadside apparatus 20 exists within the radius r1 of the target vehicle C (step S31; YES), the control unit 4 turns off the reproduction permission flag for guidance information by the car navigation unit 1 (step S32). Further, the control unit 4 also turns off the reproduction permission flag of the storage type content information by the DSRC unit 3 (step S33), and ends the first position information confirmation process.

  When the roadside apparatus 20 does not exist within the radius r1 of the target vehicle C (step S31; NO), the control unit 4 determines whether or not the immediate content information reproduction execution flag is ON (step S34). .

When the reproduction execution flag of the immediate type content information is ON (step S34; YES), the control unit 4 proceeds to step S32 and performs the processes of steps S32 and S33 described above.
If the reproduction execution flag for the immediate type content information is not ON (step S34; NO), the control unit 4 determines whether or not the reproduction request flag for guidance information is ON (step S35).

When the guidance information reproduction request flag is ON (step S35; YES), the control unit 4 turns on the guidance information reproduction permission flag (step S36). Then, the process proceeds to step S33.
When the guidance information reproduction request flag is not ON (step S35; NO), the control unit 4 sets the guidance information reproduction permission flag to OFF (step S37), and proceeds to the next processing.

The control unit 4 determines whether or not the reproduction request flag of the storage type content information is ON (step S38).
When the storage type content information reproduction request flag is ON (step S38; YES), the storage type content information reproduction request flag is set to ON (step S39), and the first position information confirmation processing is terminated.
Further, when the storage type content information playback request flag is not ON (step S38; NO), the storage type content information playback permission flag is turned OFF (step S39a), and the first position information confirmation processing is terminated. .

FIG. 8 shows the second position information confirmation process.
The control unit 4 determines whether or not the roadside apparatus 20 that transmits immediate type content information exists within the radius r2 on the traveling direction side of the target vehicle C (step S41).
Information on the radius r2, which is a predetermined distance, is stored in advance in the storage unit 3c, and can be arbitrarily set by the user via the input unit 1d.

  When the roadside apparatus 20 exists within the radius r2 of the target vehicle C (step S41; YES), the control unit 4 turns off the reproduction permission flag for guidance information by the car navigation unit 1 (step S42). Further, the control unit 4 also turns off the reproduction permission flag for the storage type content information by the DSRC unit 3 (step S43), and ends the second position information confirmation process.

  When the roadside apparatus 20 does not exist within the radius r2 on the traveling direction side of the target vehicle C (step S41; NO), the control unit 4 determines whether or not the immediate content information reproduction execution flag is ON. (Step S44).

When the reproduction execution flag of the immediate type content information is ON (step S44; YES), the control unit 4 proceeds to step S42 and performs the above-described processing.
When the reproduction execution flag for the immediate type content information is not ON (step S44; NO), the control unit 4 determines whether or not the reproduction request flag for guidance information is ON (step S45).

When the guidance information reproduction request flag is ON (step S45; YES), the control unit 4 turns on the guidance information reproduction permission flag (step S46). Then, the process proceeds to step S43.
When the guidance information reproduction request flag is not ON (step S45; NO), the control unit 4 sets the guidance information reproduction permission flag to OFF (step S47), and proceeds to the next processing.

The control unit 4 determines whether or not the reproduction request flag of the storage type content information is ON (step S48).
When the storage type content information reproduction request flag is ON (step S48; YES), the storage type content information reproduction request flag is set to ON (step S49), and the second position information confirmation process is terminated.
Further, when the storage type content information playback request flag is not ON (step S48; NO), the storage type content information playback permission flag is turned OFF (step S49a), and the second position information confirmation processing is terminated. .

FIG. 9 shows a third position information confirmation process.
The control unit 4 determines whether or not the target vehicle C reaches the roadside apparatus 20 that transmits immediate content information within the time t1 (step S51).
Information on the time t1, which is a predetermined time, is stored in the storage unit 3c in advance, and can be arbitrarily set by the user via the input unit 1d. The time t1 is calculated from the current speed of the target vehicle C and the distance to the roadside apparatus 20.

  When it is predicted that the target vehicle C will reach the roadside apparatus 20 within the time t1 (step S51; YES), the control unit 4 turns off the utterance permission flag of the guidance information by the car navigation unit 1 (step S52). Further, the control unit 4 also turns off the reproduction permission flag of the storage type content information by the DSRC unit 3 (step S53), and ends the third position information confirmation processing.

  When it is predicted that the target vehicle C will not reach the roadside apparatus 20 within the time t1 (step S51; NO), the control unit 4 determines whether or not the reproduction execution flag of the immediate type content information is ON. (Step S54).

When the reproduction execution flag of the immediate content information is ON (step S54; YES), the control unit 4 proceeds to step S52 and performs the above-described processing.
When the reproduction execution flag for the immediate type content information is not ON (step S54; NO), the control unit 4 determines whether or not the reproduction request flag for guidance information is ON (step S55).

When the guidance information reproduction request flag is ON (step S55; YES), the control unit 4 turns on the guidance information reproduction permission flag (step S56). Then, the process proceeds to step S53.
When the guidance information reproduction request flag is not ON (step S55; NO), the control unit 4 sets the guidance information reproduction permission flag to OFF (step S57), and proceeds to the next processing.

The control unit 4 determines whether or not the reproduction request flag of the storage type content information is ON (step S58).
When the storage type content information reproduction request flag is ON (step S58; YES), the storage type content information reproduction request flag is set to ON (step S59), and the third position information confirmation process is terminated.
If the storage type content information playback request flag is not ON (step S58; NO), the storage type content information playback permission flag is turned OFF (step S59a), and the third position information confirmation process is terminated. .

FIG. 10 shows a fourth position information confirmation process.
The control unit 4 determines whether or not a route to the destination passes within the radius r3 of the roadside apparatus 20 that transmits immediate type content information (step S61).
Information on the radius r3, which is a predetermined distance, is stored in advance in the storage unit 3c, and can be arbitrarily set by the user via the input unit 1d.

  When the route to the destination passes within the radius r3 of the roadside apparatus 20 (step S61; YES), the control unit 4 next performs the roadside apparatus 20 from the current location when the target vehicle C travels along this route. It is determined whether the distance to is within the distance d1. The distance d is assumed to be stored in advance in the storage unit 3c, similarly to the radius r3.

When the distance from the current location of the target vehicle C to the roadside apparatus 20 is within the distance d1 (step S62; YES), the control unit 4 turns off the guidance information reproduction permission flag by the car navigation unit 1 (step S63).
Further, the control unit 4 also turns off the reproduction permission flag of the storage type content information by the DSRC unit 3 (step S64), and ends the fourth position information confirmation process.

  When the route to the destination does not pass within the radius r3 of the roadside apparatus 20 (step S61; NO), or when the distance from the current location to the roadside apparatus 20 is not within the distance d1 even though the route passes (step S61) (S62; NO), the control unit 4 determines whether or not the reproduction execution flag of the immediate type content information is ON (step S65).

When the reproduction execution flag of the immediate content information is ON (step S65; YES), the control unit 4 proceeds to step S63 and performs the above-described processing.
When the reproduction execution flag for the immediate type content information is not ON (step S65; NO), the control unit 4 determines whether or not the reproduction request flag for guidance information is ON (step S66).

  When the guidance information reproduction request flag is ON (step S66; YES), the control unit 4 turns on the guidance information reproduction permission flag (step S67). Then, the reproduction permission flag of the storage type content information is turned off (step S64), and the fourth position information confirmation process is ended.

On the other hand, when the reproduction request flag for guidance information is not ON (step S66; NO), the control unit 4 determines whether or not the reproduction request flag for storage type content information is ON (step S68).
If the reproduction request flag for the storage type content information is not ON (step S68; NO), the fourth position information confirmation process is terminated.

  If the storage type content information reproduction request flag is ON (step S68; YES), the storage type content information reproduction request flag is set to ON (step S69), and the fourth position information confirmation process is terminated. To do.

FIG. 11 shows a fifth position information confirmation process.
The control unit 4 determines whether or not the route to the destination is within the radius r3 of the roadside apparatus 20 that transmits the immediate type content information (step S71).
The information on the radius r3 is assumed to be stored in advance in the storage unit 3c, and can be arbitrarily set by the user via the input unit 1d.

  When the route toward the destination passes within the radius r3 of the roadside apparatus 20 (step S71; YES), the control unit 4 then reaches the roadside apparatus 20 when the target vehicle C travels along this route. It is determined whether or not the time until it is within time t2 (step S72). It is assumed that the time t2 is stored in advance in the storage unit 3c, similarly to the radius r3.

When the time to reach the roadside apparatus 20 is within the time t2 (step S72; YES), the control unit 4 turns off the reproduction permission flag for guidance information by the car navigation unit 1 (step S73).
Further, the control unit 4 also turns off the reproduction permission flag of the storage type content information by the DSRC unit 3 (step S74), and ends the fifth position information confirmation process.

  When the route to the destination does not pass within the radius r3 of the roadside apparatus 20 (step S71; NO), or when the time to reach the roadside apparatus 20 is not within the time t2 even though the route passes ( Step S72; NO), the control unit 4 determines whether or not the reproduction execution flag of the immediate type content information is ON (Step S75).

When the reproduction execution flag of the immediate content information is ON (step S75; YES), the control unit 4 proceeds to step S73 and performs the above-described processing.
When the reproduction execution flag for the immediate type content information is not ON (step S75; NO), the control unit 4 determines whether or not the reproduction request flag for guidance information is ON (step S76).

  When the guidance information reproduction request flag is ON (step S76; YES), the control unit 4 turns on the guidance information reproduction permission flag (step S77). Then, the reproduction permission flag of the storage type content information is turned off (step S74), and the fifth position information confirmation process is ended.

On the other hand, when the reproduction request flag for guidance information is not ON (step S76; NO), the control unit 4 determines whether or not the reproduction request flag for storage type content information is ON (step S78).
If the storage type content information reproduction request flag is not ON (step S78; NO), the fifth position information confirmation process is terminated.

  If the storage type content information reproduction request flag is ON (step S78; YES), the storage type content information reproduction request flag is set to ON (step S79), and the fifth position information confirmation process is terminated. To do.

As described above, according to the present embodiment, the vehicle-mounted device 10 is either content information by the DSRC unit 3 or guidance information by the car navigation unit 1 based on the position information indicating the arrangement position of the roadside apparatus 20. Audio information can be reproduced. Therefore, it is possible to prevent the content information and the guidance information from being reproduced at the same time or the same content from being reproduced repeatedly.

  Moreover, when acquiring the positional information of the roadside apparatus 20, the vehicle-mounted device 10 may use the position of the target vehicle C when the DSRC unit 3 performs wireless communication with the roadside apparatus 20 as the positional information. Thereby, the onboard equipment 10 can learn and memorize | store the position of the roadside apparatus 20 which performed radio | wireless communication in the past.

  Further, the position information may indicate an arrangement position limited to the roadside wireless device that transmits immediate type content information. Immediate type content information is generally important information, and is always reproduced when the DSRC unit 3 receives it. Therefore, based on the position information limited to the immediate type, it is possible to prevent audio information other than the immediate type content information from being reproduced in the vicinity of the roadside apparatus.

  Further, the vehicle-mounted device 10 can calculate the distance between the target vehicle C and the roadside apparatus 20 based on the position information of the roadside apparatus 20. When the calculated distance is within a predetermined distance (r1 to r2, d1), the vehicle-mounted device 10 can determine that the roadside wireless device 20 exists in the vicinity of the target vehicle C. Therefore, in this case, it is possible to prevent information other than the immediate type content information from being reproduced until the immediate type content information is reproduced.

  Further, the vehicle-mounted device 10 can calculate the time until the target vehicle C reaches the roadside apparatus 20 based on the position information of the roadside apparatus 20. When the calculated time is within the predetermined time (t1, t2), the vehicle-mounted device 10 can determine that the roadside wireless device 20 exists in the vicinity of the target vehicle C. In this case, information other than the immediate type content information can be prevented from being reproduced until the immediate type content information is reproduced.

  Further, when the calculated distance is within the predetermined distance (r1 to r2, d1) and the calculated time is within the predetermined time (t1, t2), the vehicle-mounted device 10 is in the vicinity of the target vehicle C. It may be determined that the roadside apparatus 20 exists.

  Moreover, the onboard equipment 10 can display the display information which shows the position of the roadside apparatus 20, for example, an icon etc. on a map currently displayed on the display part 1e in a superimposed manner. Thereby, the user can grasp | ascertain the position of the roadside apparatus 20 visually.

It is a whole lineblock diagram showing an example of an information distribution system. It is a figure which shows an example of the basic composition of DSRC communication. It is a functional block diagram of an onboard equipment. It is a flowchart at the time of reproducing immediate type content information. It is a flowchart at the time of reproducing guidance information. It is a flowchart at the time of reproducing | regenerating accumulation | storage type content information. It is a flowchart which shows a 1st position information confirmation process. It is a flowchart which shows a 2nd position information confirmation process. It is a flowchart which shows a 3rd positional information confirmation process. It is a flowchart which shows a 4th positional information confirmation process. It is a flowchart which shows a 5th positional information confirmation process. It is a flowchart which shows the reproduction | regeneration processing of immediate type content information. It is a flowchart which shows the reproduction | regeneration process of guidance information. It is a flowchart which shows the reproduction | regeneration processing of storage type content information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Information delivery system 10 Onboard equipment 20 Roadside radio | wireless apparatus 30 Center apparatus 1 Car navigation part 2 VICS module 3 DSRC part 4 Control part C Target vehicle

Claims (8)

Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
With
When the control means calculates a distance between the vehicle and the roadside wireless device based on the position information stored in the position storage means, and determines that the calculated distance is within a predetermined distance In the vehicle-mounted device, the guidance information and the storage type content information are controlled so as not to be output. Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
With
The control means calculates a time until the vehicle reaches the position of the roadside wireless device based on the position information stored in the position storage means, and the calculated time is within a predetermined time. If it is determined that there is a vehicle-mounted device, control is performed so that the guidance information and the storage-type content information are not output. Receiving means for receiving content information including immediate type or storage type content information from the center device via the roadside wireless device;
An output means for outputting the content information and guidance information related to vehicle travel;
Control means for controlling the output means to output the immediate content information and not to output the guidance information when the receiving means receives the immediate content information;
Detecting means for detecting a current position of the vehicle;
Position storage means for storing position information in which the current position detected by the detection means is the position of the roadside radio device when the immediate content information is received by the reception means;
With
The control means is configured such that the distance between the vehicle and the roadside wireless device is within a predetermined distance based on the position information stored in the position storage means, and the vehicle is connected to the roadside wireless device. A vehicle-mounted device that performs control so that the guidance information and the storage-type content information are not output when it is determined that the time until the position reaches is within a predetermined time. And further comprising storage means for storing the content information received by the receiving means,
The control means, when receiving the immediate type content information by the receiving means, controls the output means to output the immediate type content information without storing it in the storage means, and stores the storage The vehicle-mounted device according to any one of claims 1 to 3, wherein when receiving content information of a type, control is performed so as to temporarily store the content information in the storage unit. A display means for displaying map information;
5. The control unit according to claim 1, wherein the control unit is configured to display the position of the roadside wireless device superimposed on the map information based on the position information stored in the position storage unit. The vehicle-mounted device according to claim 1. An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, a distance between the vehicle and the roadside wireless device is calculated based on the position information stored in the position storage step, and it is determined that the calculated distance is within a predetermined distance The utterance priority method is characterized in that the guidance information and the storage type content information are controlled not to be output. An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, a time until the vehicle reaches the position of the roadside wireless device is calculated based on the position information stored in the position storage step, and the calculated time is within a predetermined time. An utterance priority method characterized by controlling not to output the guidance information and the storage-type content information when it is determined that there is. An utterance priority method in an in-vehicle device,
A receiving step of receiving content information including immediate type or storage type content information from the center device via the roadside radio device;
An output step for outputting the content information and guidance information relating to the running of the vehicle;
When receiving the immediate type content information in the receiving step, a control step for controlling the output type to output the immediate type content information and not to output the guidance information;
A detection step of detecting a current position of the vehicle;
A location storage step for storing location information in which the current location detected in the detection step is a location of the roadside wireless device when the immediate type content information is received in the reception step;
Including
In the control step, the distance between the vehicle and the roadside wireless device is within a predetermined distance based on the position information stored in the position storage step, and the vehicle is connected to the roadside wireless device. An utterance priority method characterized by controlling not to output the guidance information and the storage type content information when it is determined that the time to reach the position is within a predetermined time.

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