JP2013050889A - Communication system for vehicle and information providing device used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide information from an information providing device side to a vehicle even when communication is unstable.SOLUTION: Transmission information to be provided to a diver is determined from analysis information which is analysis of a travelling environment acquired from a vehicle side. When the communication is unstable, a presentation condition for presenting information to the driver is also provided along with the analysis information. As another means, an analysis program is provided to the vehicle side when the communication is stable, whereas the transmission information to be provided to the driver is determined from the analysis information which is the analysis of the travelling environment to a possible extent when the communication is unstable.

Description

  The present invention relates to a vehicle communication system and an information providing apparatus used therefor.

  Recently, an increasing number of vehicles obtain various information such as traffic information from outside the vehicle via wireless communication. Japanese Patent Application Laid-Open No. H10-228707 proposes a vehicle (driver) that provides traffic risk information in real time. Patent Document 2 proposes a method for determining a data transmission schedule based on a communication radio wave intensity map.

JP 2010-66895 A JP 2008-11077 A

  By the way, recently, the traveling environment around the host vehicle photographed by the camera, for example, from the vehicle side is transmitted to the information providing apparatus outside the vehicle, and the data related to the transmitted traveling environment is analyzed by the information providing apparatus side, and the analysis result Is considered to be transmitted to the vehicle. More specifically, for example, a dangerous location on the road is made into a database based on past accident data, etc., and the image transmitted from the vehicle is collated with the past accident database, so that the location where the driver should be careful It is conceivable to narrow down and transmit the narrowed down caution spot to the vehicle.

  When putting the above-described technology into practical use, the communication capacity becomes considerably large, so that the problem of unstable communication becomes a problem. For example, if transmission from the vehicle to the information providing device is unstable, sufficient data cannot be obtained as data transmitted from the vehicle to the information providing device, and as a result, the analysis result to be transmitted to the vehicle side It tends to occur when a product having sufficient accuracy cannot be obtained.

  The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a vehicle communication system that can provide information from the information providing device side to the vehicle side even when communication is unstable. It is to provide an information providing apparatus to be used.

  In order to achieve the above object, in the first invention of the present invention, basically, when communication is stable, the information providing device side analyzes information on the traveling environment transmitted from the vehicle side, Transmission information to be provided to the vehicle (the driver) determined based on the analysis result is transmitted to the vehicle. Then, when communication is unstable, a determination based on the presentation condition is performed on the vehicle side by sending the presentation condition for presentation to the driver together with the analyzed information to the vehicle side. The driver determines whether or not to provide information. As a result, even when communication is unstable, even if it is impossible to provide accurate information to the vehicle, the minimum information is finally obtained on the vehicle side by sending it together with the presentation conditions. Can be obtained. Of course, when communication is stable, accurate information can be obtained from the information providing device side, so that the burden on the control system on the vehicle side is small, and the same if the situation is the same regardless of the difference in the vehicle Information can be obtained.

Specifically, in the vehicle communication system according to the first invention, the following solution is adopted. That is, as described in claim 1 in the claims,
A vehicle communication system that provides information to a vehicle via wireless communication from an information providing device outside the vehicle,
The vehicle is
Driving environment acquisition means for acquiring the driving environment around the host vehicle,
Vehicle-side transmission means for transmitting information related to the travel environment obtained by the travel environment obtaining means to the information providing device;
Vehicle-side receiving means for receiving transmission information provided from the information providing device;
Notification control means for controlling notification to the driver of transmission information received by the vehicle-side receiving means;
Have
The information providing apparatus includes:
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Have
When the communication environment between the vehicle and the vehicle is unstable, the determining unit presents the information analyzed by the analyzing unit and the analyzed information to the driver of the vehicle as the transmission information. Decide to include the presentation conditions,
The notification control means, when receiving analysis information including the presentation condition, collates the presentation condition with the driving environment, and finally determines information to be provided to the driver.
I do it.

Preferred embodiments in the present invention are as follows. That is,
The transmission information determined by the determining means can be information relating to a caution location in real time for the vehicle (corresponding to claim 2). In this case, the driver of the vehicle can know a part of the surrounding area where attention should be paid, which is preferable for safe driving.

  The information about the driving environment can be a moving image taken in real time while the vehicle is driving (corresponding to claim 3). In this case, by using a moving image as information indicating the driving environment, it is possible to perform various analyzes on the information providing device side based on various types of information included in the moving image, and provide useful information to the vehicle side. Preferred above.

  The vehicle further includes information selection means for selecting information to be transmitted to the information providing apparatus side from the moving picture information relating to the traveling environment, and the moving picture information selected by the information selection means is transmitted to the information providing apparatus side. (Claim 4). In this case, the amount of data to be transmitted to the information providing apparatus side can be reduced as much as possible, and the data can be narrowed down to the places where the information provision desired on the vehicle side is necessary.

The analysis means performs a primary analysis of information related to the driving environment,
The vehicle further includes vehicle-side analysis means for performing secondary analysis for analyzing the information after the primary analysis, and the notification control means controls the notification of the information after the secondary analysis to the driver. (Corresponding to claim 5). In this case, analysis candidates can be transmitted from the information providing apparatus side to the vehicle side, and appropriate analysis can be performed on the vehicle side according to the traveling environment.

  The analysis means can determine that the communication environment is unstable when sufficient information for analysis cannot be obtained (corresponding to claim 6). In this case, it is preferable to avoid providing a separate means for determining a change in the communication environment.

The information providing apparatus corresponding to the first aspect of the present invention is used for the vehicle communication system described above, and has adopted the following solution. That is, as described in claim 8,
An information providing apparatus for use in a vehicle communication system that provides information to a vehicle via wireless communication,
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Have
When the communication environment between the vehicle and the vehicle is unstable, the determining unit presents the information analyzed by the analyzing unit and the analyzed information to the driver of the vehicle as the transmission information. Decide to include presentation conditions,
It is like that.

  In order to achieve the above object, in the second invention of the present invention, basically, when communication is stable, the information providing apparatus side provides an analysis program according to the traveling environment transmitted from the vehicle side. The information is transmitted to the vehicle side, and on the vehicle side, appropriate information corresponding to the traveling environment is obtained using this analysis program. And when communication is unstable, the transmission information provided with respect to a vehicle is determined from the information analyzed in the possible range. Thereby, even when communication is unstable, it is possible to obtain transmission information based on a result analyzed within a possible range and finally obtain minimum information on the vehicle side. Of course, when communication is stable, an analysis program that enables accurate information to be obtained from the information providing device side is obtained, so when this analysis program is prepared in advance on the vehicle side In comparison, the burden on the control system on the vehicle side is small, and the same information can be obtained in the same situation regardless of the vehicle.

The information providing apparatus corresponding to the second aspect of the present invention is used for the vehicle communication system described above, and adopts the following solution. That is, as described in claim 9,
An information providing apparatus for use in a vehicle communication system that provides information to a vehicle via wireless communication,
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Program transmission means for transmitting an analysis program according to the traveling environment;
Have
When the communication environment between the vehicle and the information providing apparatus is stable, the analysis program is transmitted to the vehicle by the program transmission means, and when the communication environment is unstable, the apparatus-side transmission means The transmission information is transmitted to the vehicle from
It is like that.

  According to the present invention, it is preferable to improve the opportunity to provide information from the information providing apparatus side to the vehicle side in consideration of communication instability.

The figure which shows the condition which is performing the radio | wireless communication between the vehicle and the base station as an information provision apparatus. The figure which shows in block diagram the example of a control system with the vehicle side and the information provision apparatus side. The flowchart which shows the example of control of this invention. The flowchart which shows the example of presentation condition determination in FIG. The flowchart which shows another example of control of this invention.

  In FIG. 1, V is a vehicle, and CT is a base station as an information providing apparatus. The vehicle V is equipped with a camera 1 that captures the situation in front of the surrounding traveling environment, and an image captured by the camera 1 is transmitted to the base station CT. On the condition that the communication between the vehicle V and the base station CT is stable, the base station CT basically analyzes the video transmitted from the vehicle V, for example, the driver is careful. The attention point to be determined is determined as transmission information, and information regarding the determined attention point is transmitted to the vehicle V. In the vehicle V that has received the information regarding the caution location from the base station CT, for example, the information is displayed on the display of the navigation device NB, or the sound is notified from the speaker. As a result, the vehicle V is preferable for safe driving. The base station CT has a server device as an information providing device installed, but may be configured using a so-called cloud computer system in which the server device is installed outside the base station CT. Good.

  FIG. 2 shows an example of a control system for the vehicle V and the base station CT. A control system on the vehicle side is shown on the left side of the figure, and a control system on the base station CT side is shown on the right side of the figure. Indicated. The control system on the vehicle side has a controller (control unit) U1 configured using a microcomputer, and each device P1 to P8 is connected to the controller U1. P1 is a communication device for performing wireless communication with the base station CT. P2 is a speaker in the navigation device NB. P3 is a display in the navigation device NB. P4 is an attention point database storing attention points (locations) on the map database. P5 is map data for the navigation device NB. P6 is a GPS for detecting the current position of the vehicle V. P7 detects a traveling environment around the vehicle V. In the embodiment, P7 is a camera that photographs the front of the vehicle. P8 detects the vehicle state of the vehicle V. This vehicle state includes a driving state, and for example, it is possible to detect a steering angle, an operation state of a brake and an accelerator, a speed, an acceleration / deceleration, a yaw rate, and the like.

  On the other hand, the control system on the base station CT side has a controller (control unit) U2 configured using a microcomputer, and each device R1 to R5 is connected to the controller U2. R1 is a communication device for performing wireless communication with the vehicle V. R2 is a map database. R3 is an attention point database storing attention points (locations) on the map database (a much larger number of attention points are stored than the attention point database stored on the vehicle V side). R4 is a caution content database that stores caution content at caution points. R5 is a program database storing analysis programs. The contents of caution in R4 store contents to be noted for each caution point, and are set based on past accident data and serious past experience. The database in R5 includes a number of analysis programs suitable for various driving environments of the vehicle V.

  Next, the control contents of the controllers U1 and U2 will be described with reference to FIG. In addition, the left side in the figure shows the control contents on the controller U1, and the right side in the figure shows the control contents on the controller U2 side. In the following description, Q or S indicates a step.

  First, in Q1 of the controller U1, an image captured by the camera P7, a vehicle state detected by the detection unit P8, and current position information of the vehicle V obtained by GPSP6 are acquired. Next, the data acquired in Q1 is transmitted to the controller U2.

  The data transmitted in Q2 is received in S1 in the controller U2. After S1, the received data is analyzed in S2. This analysis identifies road structures and potentially dangerous objects. For example, it distinguishes between road areas and other areas (especially identification of oncoming traffic lanes), as well as cautionary objects (dangerous goods such as vehicles, motorcycles, and pedestrians). ). In the embodiment, in the analysis in S2, in consideration of the time when the vehicle V is about to turn right at the intersection, the region in the image is the oncoming lane region and the oncoming vehicle is extracted. This is the meaning of the area in the image from the viewpoint of safe driving. Specifically, based on image analysis data obtained from past passing vehicles, it is possible to refer to the structure data of the intersection and extract which position in the image sent from the vehicle V is the oncoming lane region. it can.

  After S2, it is determined in S3 whether or not the communication is stable. In this embodiment, in the embodiment, when the effective resolution of the camera P7 is, for example, 800 × 600 dots, the effective resolution of the received video data is, for example, a predetermined first threshold (for example, 480 × 360 dots). ) And a predetermined first threshold value (for example, 160 × 120 dots), communication is considered unstable. Also, when the check data is exchanged between the base station CT and the vehicle V and the communication capacity (speed) at that time is larger than 1 Mbps, the communication is stable, and between 1 Mbps and 100 kbps Whether communication is stable or unstable, such as communication being unstable, can be determined by an appropriate method.

  When the determination in S3 is YES, that is, when the communication is stable, in S4, the attention area is determined based on the preset presentation condition. Specifically, when the vehicle V makes a right turn at an intersection, it is determined whether or not the time until the oncoming vehicle reaches the intersection is within a predetermined time (for example, 3 seconds). Thereafter, in S5, it is determined whether or not there is a caution area (whether or not the oncoming vehicle reaches the intersection within a predetermined time). When the determination in S5 is YES, in S6, the oncoming vehicle and the area in the vicinity thereof are transmitted as the attention area to the vehicle V. If the determination in S5 is NO, information indicating that there is no caution area is transmitted to the vehicle V in S7. In addition, since image data is transmitted to the base station CT in real time from the vehicle V side, there are many occasions when it is determined that there is no caution area in S7 (on the road, the accident data and the accidental (Because there are some sections where past experience data exist, and there is often no need to pay special attention).

  When the determination in S3 is NO, that is, when the communication is unstable, the attention area and the presentation condition are set in S8, and then the information set in S8 is transmitted to the vehicle V in S9. In the present embodiment, this presentation condition is a calculation condition for calculating the time until the oncoming vehicle reaches the intersection from the image data. Specifically, for example, when the position in the image is indicated by an orthogonal coordinate system, the difference between the opposite lane regions (x1, y1) to (x2 to y2) in the y direction (the traveling direction of the vehicle V) is obtained, and the luminance For example, a horizontal line having a difference larger than 50 is regarded as the front end of the oncoming vehicle. Then, when the ordinate Y of the oncoming vehicle front end line is smaller than 150 and the amount of movement in the vertical direction is 10 pixels per second, it is determined that the presentation condition is determined.

  The transmission at S6 in the controller U2 on the base station CT side is received at Q3 on the vehicle V side. After Q3, in Q4, the attention area is displayed on the display P3, and the attention area is notified by voice through the speaker P2.

  The transmission at S7 in the controller U2 on the base station CT side is received at Q5 on the vehicle V side. In this case, since there is no attention area, the controller U1 of the vehicle V returns to Q1 without doing anything.

  The transmission at S9 in the controller U2 on the base station CT side is received at Q6 on the vehicle V side. After Q6, in Q7, it is determined whether or not there is a caution area based on the caution area presentation condition set in S8. Thereafter, in Q8, it is determined whether or not the determination result in S7 is that the attention area exists. If the determination in Q8 is YES, in Q9, the attention area is displayed on the display P3, and the attention area is notified by voice through the speaker P2. If NO in Q9, the process returns as it is.

  FIG. 4 is a flowchart showing another example of presentation conditions in S4, S8, and Q7 in FIG. That is, first, at T1, it is determined whether or not the oncoming vehicle is approaching based on the image data. If the determination at T2 is YES, it is determined at T2 whether the vehicle V is accelerating. If the determination at T2 is YES, at T3, it is determined that the attention area is displayed and the alert sound is reproduced.

  When the determination at T2 is NO, at T4, it is determined whether or not the vehicle V is in a state of stepping on the brake. If the determination at T4 is NO, the determination at T3 is made. If NO in the determination of T1 or YES in the determination of T4, the process proceeds to T5, and a determination is made that no alert is issued.

  Here, the above-described attention area is an area that restricts a portion to be particularly noted in the acquired video data. For example, when there is an intersection ahead of the video, for example, if there is an oncoming vehicle, only the area where the oncoming vehicle that is a part of the video area has moved is set as the attention area. If there is a high risk of a two-wheeled vehicle or pedestrian jumping from a side road in front of the oncoming car, even if an oncoming car exists, based on past accident data and serious experience data, this side road part Is set as the attention area. It is also possible to set both oncoming vehicles and side roads as caution areas (the number of caution areas is not limited to one, but the number of caution areas should be limited to one or two in order to attract the driver's attention. Is preferable).

  FIG. 5 shows a second control example of the present invention and corresponds to the flowchart of FIG. First, the processes of Q21 and Q22 in the controller U1 correspond to the processes of Q1 and Q2 in FIG. The controller U2 that has received the data in S21 determines whether or not the communication is stable in S22 (corresponding to S3 in FIG. 3). If the determination in S22 is YES, it is determined whether downlink communication (transmission from the base station CT to the vehicle V) is stable. When the determination in S23 is YES, an analysis program corresponding to the acquired video is selected in S24, and the selected analysis program is transmitted to the vehicle V. The selection of the analysis program in S24 is based on the past accident data and the past experience, and an appropriate one corresponding to the transmitted image (traveling environment) is selected. Specifically, the analysis program includes, for example, an oncoming vehicle type determination program by pattern matching, a shielding area determination program by a structure, and three-dimensional data of a structure at a corresponding intersection.

  When the determination at S22 is NO or when the determination at S23 is NO, data analysis is performed within the possible range with S25 (corresponding to S2 in FIG. 3). Thereafter, in S26, the attention area is determined based on the presentation condition (corresponding to S8 in FIG. 3). Thereafter, in S27, it is determined whether or not there is a caution area. If the determination in S27 is YES, the caution area is transmitted to the vehicle V side in S28. When the determination in S27 is NO, in S29, a notice that there is no caution area is transmitted to the vehicle V side.

  The controller U1 receives the transmission at S24 at Q23. Thereafter, in Q24, after the acquired video is analyzed, in S25, the attention area is determined based on the presentation condition. Thereafter, in Q26, it is determined whether or not there is a caution area. When the determination in Q26 is YES, the attention area is displayed on the display P3 and alerted by voice notification from the speaker P2. Note that the processing of Q24 to Q27 corresponds to the processing of S25 to S29, but the image data to be used has high accuracy, and thus the reliability is sufficiently higher than the processing results of S25 to S29 (high accuracy). ) Information. In particular, in the embodiment, when the arrival time of the oncoming vehicle to the intersection is less than a predetermined time (for example, 3 seconds) and the oncoming vehicle is shielded by the structure, the oncoming vehicle and the area in the vicinity thereof are the attention area. Is determined.

  The controller U1 receives the transmission at S28 at Q28. Thereafter, in Q29, the attention area is displayed on the display P3, and alerted by voice notification from the speaker P2. The controller U1 receives the transmission in S29 at Q30. In this case, since there is no caution area, the controller U1 returns as it is.

  Although the embodiment has been described above, the present invention is not limited to the embodiment, and can be appropriately changed within the scope described in the scope of claims. For example, the invention includes the following cases. . Some data may be selected from image data obtained in advance on the vehicle V side, and the image data after this selection may be transmitted to the base station CT (for example, a region farther than a predetermined distance of the vehicle V and Only a part of the image after deleting the left and right areas separated by a predetermined distance or more is transmitted to the base station CT). In addition, it is possible to cut out only a region that should be particularly noted based on past accident data and the like that the vehicle V holds as a database. As described above, it is preferable to select data to be transmitted on the vehicle V side in advance in order to reduce the communication amount and reliably transmit to the base station CT.

  The primary analysis is performed in advance on the base station CT side (selection of information that effectively uses the database on the base station CT side), the obtained primary analysis information is transmitted to the vehicle V side, and the primary analysis is performed on the vehicle V side. The information is secondarily analyzed (for example, corresponding to the processes of S4 and S8 in FIG. 3), and the information to be provided to the driver can be finally determined from the secondary analysis information obtained thereby. The information provided from the information providing apparatus side is not limited to a caution location, and may be appropriate information such as driving support information and traffic information, for example. Specifically, in the case of driving assistance, the travel environment obtained from the vehicle side is analyzed, and notes regarding steering wheel operation, brake operation, accelerator operation, transmission gear shifting operation, etc. are determined according to the analysis result (for example, On the downhill, it is possible to provide information such as selecting a low speed gear position). The information transmitted from the vehicle V to the base station CT may not include image data. Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

  The present invention is preferable as a technique for improving the opportunity to provide information to the vehicle from the outside.

V: Vehicle CT: Base station (information providing device)
U1: Controller P1: Communication device P2: Speaker (for information notification)
P3: Display (for information notification)
P6: GPS
P7: Camera (for obtaining driving environment)
P8: Vehicle state detection unit U2: Controller R1: Communication device R3: Database (attention)
R4: Database (Cautions)
R5: Database (analysis program)

Claims (9)

A vehicle communication system that provides information to a vehicle via wireless communication from an information providing device outside the vehicle,
The vehicle is
Driving environment acquisition means for acquiring the driving environment around the host vehicle,
Vehicle-side transmission means for transmitting information related to the travel environment obtained by the travel environment obtaining means to the information providing device;
Vehicle-side receiving means for receiving transmission information provided from the information providing device;
Notification control means for controlling notification to the driver of transmission information received by the vehicle-side receiving means;
Have
The information providing apparatus includes:
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Have
When the communication environment between the vehicle and the vehicle is unstable, the determining unit presents the information analyzed by the analyzing unit and the analyzed information to the driver of the vehicle as the transmission information. Decide to include the presentation conditions,
The notification control means, when receiving analysis information including the presentation condition, collates the presentation condition with the driving environment, and finally determines information to be provided to the driver.
A vehicle communication system. In claim 1,
The vehicular communication system, wherein the transmission information determined by the determining means is information related to a caution spot in real time for the vehicle. In claim 1 or claim 2,
The vehicle communication system, wherein the information related to the travel environment is a moving image taken in real time while the vehicle is traveling. In claim 3,
The vehicle further includes information selection means for selecting information to be transmitted to the information providing apparatus from the moving picture information related to the driving environment, and the moving picture information selected by the information selection means is sent to the information providing apparatus side. A vehicle communication system characterized by being transmitted. In claim 3,
The analysis means performs a primary analysis of information related to the driving environment,
The vehicle further includes vehicle-side analysis means for performing secondary analysis for analyzing the information after the primary analysis, and the notification control means controls notification of the information after the secondary analysis to the driver. To
A vehicle communication system. In any one of Claims 1 thru | or 5,
The vehicle communication system, wherein the analysis means determines that the communication environment is unstable when sufficient information for analysis cannot be obtained. A vehicle communication system that provides information to a vehicle via wireless communication from an information providing device outside the vehicle,
The vehicle is
Driving environment acquisition means for acquiring the driving environment around the host vehicle,
Vehicle-side transmission means for transmitting information related to the travel environment obtained by the travel environment obtaining means to the information providing device;
Vehicle-side receiving means for receiving transmission information provided from the information providing device;
Notification control means for controlling notification to the driver of transmission information received by the vehicle-side receiving means;
Have
The information providing apparatus includes:
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Program transmission means for transmitting an analysis program according to the traveling environment;
Have
When the communication environment between the vehicle and the information providing apparatus is stable, the analysis program is transmitted to the vehicle by the program transmission means, and when the communication environment is unstable, the apparatus-side transmission means The transmission information is transmitted to the vehicle from
The notification control means provides the driver with the transmission information when the transmission information is received, and provides the driver with analysis information obtained by analyzing the driving environment based on the analysis program when the analysis program is received. provide,
A vehicle communication system. An information providing apparatus for use in a vehicle communication system that provides information to a vehicle via wireless communication,
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Have
When the communication environment between the vehicle and the vehicle is unstable, the determining unit presents the information analyzed by the analyzing unit and the analyzed information to the driver of the vehicle as the transmission information. Decide to include presentation conditions,
The information provision apparatus used for the vehicle communication system characterized by the above-mentioned. An information providing apparatus for use in a vehicle communication system that provides information to a vehicle via wireless communication,
Device-side receiving means for receiving information on the driving environment provided from the vehicle;
Analyzing means for analyzing information about the driving environment received by the device-side receiving means;
Determining means for determining transmission information to be provided to the vehicle from the analysis information analyzed by the analyzing means;
Device-side transmission means for transmitting the transmission information determined by the determination means to the vehicle;
Program transmission means for transmitting an analysis program according to the traveling environment;
Have
When the communication environment between the vehicle and the information providing apparatus is stable, the analysis program is transmitted to the vehicle by the program transmission means, and when the communication environment is unstable, the apparatus-side transmission means The transmission information is transmitted to the vehicle from
The information provision apparatus used for the vehicle communication system characterized by the above-mentioned.

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