JP2005222193A - Information system and in-vehicle information system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information system collecting information related to a satisfaction degree from a person already visiting a specific area of an event, shopping or the like, and disclosing it on a network. <P>SOLUTION: In this information system allowing the two-way wireless communication of an information center and a plurality of vehicles, the vehicle has a position detection means detecting position information about the vehicle, and a transmission means transmitting the position information to the information center. The information center has: a vehicle high-density area retrieval means retrieving an area having high vehicle density on the basis of the position information; a question transmission means transmitting a question related to the satisfaction degree of the area to the vehicle present inside the retrieved area; and a satisfaction degree information disclosure means receiving an answer to the question, and disclosing the information related to the satisfaction degree. By constructing this information system, the vehicle can receive the information related to the satisfaction degree. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an information system and an in-vehicle information system.

  When going out for vacation or shopping using a car, the car navigation system installed in the car or an in-vehicle information system is used to connect to an organization that manages information called an information center. Conventionally, there is an information system for searching for traffic information, event information, shopping information, parking lot congestion, and the like. In this information system, for example, as shown in FIG. 2, various information such as traffic information, store information, and event information is provided from the information provider to the information center, and the user uses the communication infrastructure such as a telephone line to obtain the above information. Get it.

  However, the conventional information system only provides pre-input information such as the type of product and what kind of event or event is present. Little information is provided. In addition, although traffic information is provided for some major arterial roads, traffic information around the destination is not necessarily provided. In addition, information on parking congestion is only provided for some large parking lots.

  When going out with friends and family on holidays, there are times when traffic jams, interesting events are not prepared, and quiet places are not desirable because they don't like them. However, since it is difficult to obtain information on traffic congestion at the destination, impressions of people who went to the event, or information on the situation of attracting customers, there was a case where precious leisure was ruined. In addition, because the parking lot is full, time was wasted waiting for parking.

For example, Patent Literature 1 below discloses a system that guides a specific area such as a tourist area using a base base such as a parking lot, a tourist information center, or a station. However, even such a system cannot provide information accompanied by the actual feeling of a person visiting a tourist area.
JP 2002-24458 A

  The present invention has been made in the background as described above, and in particular, an information system that collects information on satisfaction from a person who has already visited a specific area such as an event or shopping and publishes it on a network. It is an issue to provide. It is also an object of the present invention to provide real-time map information and parking information of a specific area with a good customer collection situation.

Means for Solving the Problems and Effects of the Invention

  In order to solve the above-described problems, the present invention provides an information system in which an information center and a plurality of vehicles can wirelessly communicate bidirectionally, and the vehicle includes position detection means for detecting position information of the vehicle, and position information. A transmission means for transmitting to the information center, the information center for vehicle high density area search means for searching for an area having a high vehicle density based on the position information, and for vehicles existing in the searched area A vehicle for receiving satisfaction information, and a vehicle for receiving information on satisfaction. It is characterized by doing.

  Further, the vehicle includes speed detection means for detecting the speed of the vehicle, the transmission means transmits the speed information to the information center, and the question transmission means selects the stopped vehicle based on the speed information. Send questions. Further, the vehicle has passenger detection means for detecting information related to passengers other than the driver, the transmission means transmits the passenger information to the information center, and the question transmission means is based on the speed information. If it is determined that the vehicle is moving, the question is transmitted only when it is determined that the vehicle has a passenger other than the driver based on the passenger information.

  In addition, the information center creates map information of a region having a high vehicle density and information on satisfaction, and publishes the map information on the network. Furthermore, the information center creates parking information of a region having a high vehicle density and information on satisfaction, and publishes the parking information on the network.

  The in-vehicle information system of the present invention is an in-vehicle information system in which a plurality of vehicles can wirelessly communicate via an information center and a network, and information is exchanged between a vehicle occupant or a driver, and each vehicle is connected to a network. Communication means and display means for displaying information from the network, each vehicle has information on the area where the vehicle density is high from the network, information on the degree of satisfaction of people who have already visited the area, The information center is a person who has received information on vehicles that can be exchanged with information and displays information exchangeable vehicles as connectable vehicles, and the information center has not yet visited a region with high vehicle density. Based on a connection request to a connectable vehicle from a vehicle of a person who has not yet visited the region and a vehicle that exists in the region and can exchange information That. Each vehicle further includes at least one of a microphone, a text document input unit, and an indoor camera, and the connected vehicle exchanges information by voice using a microphone, or information exchange by chat using a text document input unit. Or information exchange performed while viewing each other's images using a microphone, an indoor camera, and display means.

  The present invention collects information such as position information of a vehicle from a plurality of vehicles, collects the information, and publishes the information on a network such as the Internet. The plurality of vehicles are provided with position detection means such as GPS and transmission means, and transmit the position information of each vehicle to the information center. Based on vehicle position information transmitted from a plurality of vehicles, the information center searches an area with a high vehicle density, and then sends a question regarding satisfaction of a specific area such as an event or shopping to vehicles existing in the area. To do. When the vehicle passenger answers the question, the answer is transmitted to the information center by the transmission means described above. Thereafter, the information center publishes information on satisfaction on a network such as the Internet. The vehicle is provided with facilities (reception means, display means, etc.) connected to the network, and information on the satisfaction of the specific area can be obtained by accessing the information center.

  The above-mentioned question about satisfaction is, for example, a question about whether there was a bargain item in shopping or what kind of event occurred. As described above, the vehicle is equipped with facilities connected to the network, and the passengers of the vehicle use such facilities to display or answer questions on the screen. The answered data is transmitted to the information center using a communication frequency band of a mobile phone, for example, and then released to the network. By configuring such an information system, a person who has not yet visited the event or shopping can obtain information with an actual feeling such as an impression of a person who has already visited.

  As described above, the present invention transmits questions about satisfaction to a plurality of vehicles, collects the answers, and publishes them on the net. However, it is dangerous for a person driving a vehicle to read or answer a question displayed on the screen. Therefore, in the present invention, the information center selects only vehicles that can be answered safely and transmits a question. For this purpose, the following method is used. That is, speed detection means such as a speed sensor is mounted on the vehicle, and the speed information of the vehicle is transmitted to the information center, and the information center selects a stopped vehicle and transmits a question. The vehicle is equipped with passenger detection means, and transmits information about the passenger to the information center. Here, the passenger detection means is, for example, a load sensor installed in each seat, and can detect whether there is a passenger other than the driver or in which seat. When the information center determines that the vehicle is moving from the speed information, the question is transmitted only when it is determined that there is a passenger other than the driver based on the information about the passenger. .

  In order to know the situation of attracting customers for events and shopping, the information center has a vehicle high-density area search means described below. The vehicle high-density area search means uses the vehicle position information transmitted to the information center to collect statistics on the number of vehicles in a certain area in advance. Then, the average value of the number of vehicles is compared with the current value, and if it is larger than a certain value, the area is determined as a high-density area of the vehicle (an area with a good customer collection situation). Thereafter, the information center publishes the high-density area of the vehicle on the Internet together with the above-described information related to the degree of satisfaction. On the Internet, for example, “Vehicle High Density Area” or “Good Customer Collection Area” is displayed, or the color of the map is changed to indicate that the vehicle density is high (the customer collecting situation is good). With this information, you can avoid crowded places or conversely events that are too quiet.

  The information center can also publish information on areas where parking is difficult on the Internet. For this purpose, using the vehicle position information and vehicle speed information transmitted to the information center, the parked vehicle is set as a parked vehicle, and the average value of the number of parked vehicles in a certain area is calculated in advance. Then, the average value of the number of parked vehicles is compared with the current value. On the WEB screen, for example, “a difficult parking area” or “waiting for parking” is displayed. In this way, areas where parking is difficult can be avoided, and the waiting time for parking can be reduced.

  Furthermore, by using the information system of the present invention, a person who has not yet visited a specific area such as an event or shopping can talk with a person who has already visited. Therefore, when a person who has already visited a specific area answers a question regarding satisfaction, it transmits to the information center whether it is possible or impossible to respond to an inquiry from a person who has not yet visited. The information center displays, on the WEB screen, a list of vehicles that exist in the specific area and can be directly talked to. When a person who is looking for a destination selects this vehicle, it is connected via the Internet and direct conversation is possible. In this way, it is possible to listen to the live voices of people in the field, and to provide important information for deciding where to visit.

  In the above, the information system which provides the information regarding the satisfaction of the person who visited a specific area such as an event or shopping, the information on the area where the vehicle density is high, or the information on the area where parking is difficult has been described. However, this system is difficult to operate smoothly if there is no merit for the information provider (questioner). In order to solve the problem, points are given to the question answerer. Then, the merit of providing information is generated, and the system can be operated smoothly. In addition, an evaluation system for the person who provided the information may be provided to improve the reliability of the information. Furthermore, points may be reduced from the person who made the inquiry. When this point is accumulated, it can be exchanged for a free gift, for example, or discounted when shopping.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing an embodiment of the present invention, which includes specific areas A, B, and C where events, shops, festivals, and the like are performed, and a plurality of vehicles 1 ′ are present therein. Further, outside the specific area, there is a vehicle 1 of a person who is looking for a destination. These vehicles can communicate bidirectionally with the information center 2 via a telephone line or the like. As will be described later, each vehicle is provided with position measuring means using GPS or the like, communication means, and a terminal (vehicle communication terminal or personal computer) for connecting to the Internet. On the other hand, the information center 2 includes a vehicle high-density area search unit 3, a question transmission unit 4, and a satisfaction degree information disclosure unit 5 described later.

  Based on the vehicle position information transmitted from each vehicle, the information center creates a list of regions where the vehicle density is high (the customer attracting condition is good), and transmits a question regarding satisfaction to vehicles in the region. . When the vehicle passenger answers the question, it is sent to the information center using the communication means. The information center publishes information on satisfaction with a list of areas with high vehicle density on the Internet. On the other hand, a person who has not yet visited a specific area such as an event or a festival accesses the information center from the vehicle 1 and searches for a place to go to. Information about satisfaction can then be obtained.

  Each vehicle is provided with a speed detection means and an occupant detection means, and transmits information on the vehicle speed and the occupant to the information center. When the information center transmits the question regarding the satisfaction degree, the information center selects a stopped vehicle based on the speed information and transmits the question. When the information center determines that the vehicle is moving, the question is transmitted only when it is determined that there is a passenger other than the driver based on the information on the passenger. In this way, when there is no passenger other than the driver and the vehicle is moving, it is possible to prevent sending of questions, and as a result, the safety of the respondent can be ensured.

FIG. 3A is an attachment diagram of the in-vehicle information system, and FIG. 3B is a block diagram. The vehicle is provided with speed detection means 10 for measuring the speed of the vehicle, occupant detection means 11 for detecting the occupant, and position detection means 6 for detecting the position of the vehicle with GPS or the like. Information on the position, speed, and occupant of the vehicle is collected by the data collection module 7 and then transmitted to the information center 2 by the communication means 12. Further, a data processing controller 8 for processing data from the information center 2 and displaying it on the display device 9 or processing data to be transmitted is attached.

  Next, the timing for transmitting the information from the vehicle to the information center will be described. The data collection module 7 receives from the information center 2 information on which sensor information (vehicle position, speed, passenger) is collected at which timing. Further, the data processing controller 8 receives from the information center 2 information on when to send the data collected by the data collection module 7 to the information center. Speed detection means 10, position detection means 6, passenger detection means 11 mounted on the vehicle (other position sensors such as an accelerator pedal, brake pedal, steering, hand brake, etc., acceleration sensor, indoor / outdoor temperature sensor) When the signal transmission command (including response timing information) is received from the data collection module 7, the information is transmitted to the data collection module 7. In this way, a privileged network usage right is given to the data collection module, and the in-vehicle network can be used preferentially, so sensor information in the vehicle can be quickly collected and sent to the information center, enabling real-time sensing It becomes.

  When each sensor receives a regular communication start process from another in-vehicle device, it sends sensing data to the other in-vehicle device. When there is a privileged command from the data collection module 7, the sensing data is returned with priority given to the response to the data collection module 7. Sensing data is provided with a data flag indicating which device the data is for, and data other than the target device cannot be decoded. Further, when the data of the target device is to be used by other devices, the sensor data for the target device can be used by devices other than the target device by updating the data with the target device and obtaining data decoding information. Thereby, congestion of the in-vehicle network line can be reduced.

  Next, the operation of the information system will be described. The sequence diagram of FIG. 4 shows the timing of information exchange between the vehicle 1 of the person searching for the destination, the information center 2, the vehicle 1 'existing in the specific area, and the store 13 in the specific area. First, in operation A <b> 1, the vehicle 1 ′ in the specific area transmits information on the vehicle position, speed, and passenger to the information center 2. The information center 2 uses a vehicle high-density area search means 3 to be described later to search in which specific area the vehicle density is high (the customer attracting situation is good), and creates a list and a map (A2). On the other hand, the vehicle 1 searches for a destination in the operation A3, and obtains a list and a map of the high-density area of the vehicle from the information center 2. As described above, the information center 2 searches for a vehicle that is safe even if question data is sent from a plurality of vehicles in a specific area (A4). When the question is answered (A6), the information center 2 determines the degree of satisfaction from the answer (A7). Satisfaction is determined by, for example, displaying the degree of satisfaction in five stages. The information on the determined satisfaction is linked to the above-described list and map of the high-density vehicle area, and then released on the Internet (A8). In this way, the vehicle 1 of the person who searches for the destination can search for information on the satisfaction level (A9), and pays points to the question answerer as a reward.

  On the other hand, the store 13 affiliated with the information center 2 provides advertisements and points to the information center 2 (A10), and the information center 2 places the advertisements on the homepage (A11) to obtain advertising revenue. Further, when a person who sees these advertisements makes a purchase at the store 12 or uses a service (A12), the information center 2 is paid for an introduction fee. Points may also be paid from the information center 2. By operating such a system, it is possible to obtain information on the high-density vehicle area from the vehicle 1 of the person who is looking for a destination, and the vehicle 1 'existing in the specific area can obtain points, and the store 13 Will be able to advertise and increase sales. On the other hand, a person who has accumulated points may be discounted when shopping at a store 13 or the like.

  FIG. 5 is a flowchart showing the operation of the vehicle high-density area search means 3. In order to search for a high-density vehicle area, first, in step S1, vehicles existing in the specific area are counted at regular intervals based on the vehicle position information from each vehicle. Here, the fixed time is, for example, about one hour. Based on the counting result, an average value for the time period is separately calculated, and it is determined whether the current number of vehicles is larger than the average value by a certain amount (for example, about 30%) (S2). As a result, when it is determined that there are many, the process proceeds to step S3, where it is determined that the vehicle is a high-density area (or a prosperous area). Further, in the case of No in S2, the process proceeds to step S4, and it is determined whether the current number of vehicles is a certain amount less than the average value. If it is determined that the number is low, the process proceeds to step S5, where it is determined that the vehicle is a low density area (or a quiet area). In the case of No in S4, it is considered that there is not much change from normal, and the process ends as it is.

  FIG. 6 is a flowchart showing an example of the operation of the question transmission unit 4. First, in step S6, a list of vehicles existing in the above-described high-density area of the vehicle (area with a good customer collection situation) is created. Thereafter, based on the information from the passenger detection means 11, it is determined whether there is a passenger other than the driver (S7). If a passenger is present, a passenger other than the driver can answer the question while traveling, so the process moves to S9 and is added to the list of vehicles that can answer the question. In the case of No in S7, the process proceeds to step S8, and it is determined based on the information from the speed detection means 10 whether the vehicle is stopped. If the vehicle is stopped, the process moves to S9 and is added to the list of vehicles that can answer the question. If S8 is No, there is no passenger other than the driver and the vehicle is moving, so it is judged that it is dangerous to answer the question, S9 is skipped, and the process proceeds to S10. In step S10, it is determined whether or not safety has been confirmed for all vehicles in the specific area. If Yes, the question is transmitted to vehicles that can answer the question safely (S11).

  The in-vehicle information system can be configured as shown in FIG. In the figure, the vehicle is a speed detection means 10, an occupant detection means 11, a position detection means 6, an indoor camera 15, an outdoor camera 16, a handbrake sensor 17, a gear sensor 18, a microphone 14, a display 9, a communication means 12, a text document. The input means 19 is mounted, and the data collection module 7 collects vehicle data and transmits these data via the data processing controller 8. In this in-vehicle system, in addition to the vehicle speed, position, and occupant information, information on whether the handbrake is applied or how many gears are in can be transmitted to the information center. For example, if the hand brake is applied or the gear is neutral, it is determined that the information center is stopped and it is determined that the question data can be sent. The indoor camera 15, outdoor camera 16, microphone 14, and text document input means 19 are used for direct access described later.

  FIG. 8 is a sequence diagram when the passengers of the vehicle have a direct conversation. Since this sequence diagram is the same as FIG. 4 until operation A4, the description thereof is omitted. In operation A13, the information center 2 publishes a list of vehicles that can safely answer the question on the Internet. When a list of the above vehicles is selected from the vehicle 1 of the person searching for a destination (for example, by clicking on the WEB screen), a conversation can be directly made via the Internet (A14). In order to converse through the Internet, for example, a technique of transmitting / receiving voice information such as VOIP as a packet via an IP network is used. By using the indoor camera 15, the display device 9, and the microphone 14 mounted on the vehicle, it is possible to exchange information while looking at each other's faces. In addition, the outdoor camera 15 can be used to convey the atmosphere of the site. Information exchange only for voice may be performed using the microphone 14. A text-based dialogue called chat may be performed using the text document input means 19. Note that the indoor camera 15, the outdoor camera 16, the microphone 14, and the text document input means 19 are not all necessary, and necessary equipment may be mounted on the vehicle depending on the form of direct conversation.

  As described above, the vehicle 1 of the person who is looking for the destination and the vehicle 1 ′ existing in the specific area are connected via the Internet, and the passengers directly talk to each other so that important information for determining the destination Can be exchanged. When the direct access is completed, the person searching for the destination pays points to the information provider. In the unlikely event that the information of the place where you went out is wrong, if you send the evidence to the information center, the user who provided the evidence can get points, and the person who provided the wrong information should be penalized . Thereby, provision of wrong information can be prevented.

  The information system of the present invention can also provide parking information. In this case, the information center counts the number of vehicles parked in the specific area at regular intervals based on the position information and speed information transmitted from each vehicle. An average value of the number of parked vehicles during that time period is separately calculated, and it is determined whether the current number of parked vehicles is a certain amount (for example, about 30%) more than the average value. When it is judged that there are many, it designates the area as a difficult-to-park area and makes it public on the Internet.

  Information on a specific area provided by the information center is provided on the Internet as, for example, a WEB screen as shown in FIG. In the figure, parks, electronics stores, amusement parks, movie theaters, supermarkets, and other customer attraction rankings are displayed from 1st to 5th, and the overall ranking is displayed at the top left of the screen. This ranking displays areas that have been determined by the above-described vehicle high-density area search means to have a high vehicle density (good customer collection situation). On the right side, there is a portion where a star mark or a circle mark is displayed. The star mark indicates that the customer attracting situation is the highest ever, and the circle mark indicates that it is relatively successful. This list is provided in real time and is updated with new information many times within a day. This WEB screen may be set, for example, on the portal site of the information center and used as the screen that the user accesses first. A person who is looking for a destination first accesses this screen and clicks on a specific area that he likes. Then, a detailed information screen shown in FIG.

  In FIG. 10, vehicles currently existing in the region are displayed together with the map information, and each vehicle is numbered. In the balloon on the right, the name of the area and the parking waiting time are displayed, and the results of the satisfaction survey are indicated by ☆. This represents the degree of satisfaction by the number of ☆. On the other hand, when the guidance button is clicked, guidance such as the contents of the event is displayed. Below the balloon is a comment about satisfaction. Furthermore, the map information is marked with an arrow to indicate the direction of entry of the car, and the area is colored so that the degree of attracting customers can be visually recognized. In addition, vehicles that can be directly accessed are indicated by a circle, and when these are clicked, the screen shifts to a direct access screen shown in FIG.

  In the direct access screen of FIG. 11, there is an indoor camera display on the left side and an outdoor camera display on the right side. You can see the other person's face with the indoor camera and talk directly with the microphone installed in the car. A person looking for a destination can use the camera switch button at the bottom right of the screen to control the other's outdoor camera and see the surrounding situation. There is also a connection release button at the bottom left of the screen to end direct access.

  The direct access described above can also be performed using a mobile phone. However, the mobile phone has a problem that the power source is limited, and this information system using the power source of the vehicle is easier to realize.

  Next, the operation of the information system will be described. Purchase costs for communication devices and data collection modules mounted on vehicles and communication charges are a burden on users, and there is a possibility that some people will not actively use information systems. Therefore, the information system can be easily used by paying these fees by the manufacturer or the information center. Since the information center periodically receives information from the vehicle and processes it to create data, the user pays points as a data provision fee. In addition, since the manufacturer can grasp the quality of the vehicle sold in-house by using the data from the vehicle, the manufacturer pays the equipment fee and communication fee of the communication equipment and the data collection module. This makes it possible for a person who newly purchases a car to save on equipment costs, and since there is no need to worry about communication charges, information can be provided reliably and the system can be operated smoothly. In the conventional technology, for example, in order to check real-time traffic information and parking space availability, it was expensive to purchase information from the outside or inquire from the parking lot. If there is more, traffic information and parking lot information can be collected with higher accuracy than before. In addition, it is superior in terms of certainty of information compared to purchasing information from outside, and even if the manufacturer and information center bear the communication cost and equipment fee, the system can be maintained. . Furthermore, the communication line is not only a mobile phone line, but if a DSRC or wireless LAN is constructed and used in the parking lot of the store, the communication charge between the vehicle and the information center or between the store and the information center can be made free. Therefore, it is possible to construct a system with a higher profit rate than before.

Schematic which shows one Embodiment of this invention. The block diagram of the conventional information system. The (a) attachment figure and (b) block diagram which show one Embodiment of a vehicle-mounted information system. The sequence diagram for demonstrating operation | movement of this invention. The flowchart which shows operation | movement of a vehicle high-density area search means. The flowchart which shows operation | movement of a question transmission means. It is the (a) attachment figure and (b) block diagram which show embodiment different from FIG. Sequence diagram for direct access. An embodiment of a WEB screen. The detailed information screen following FIG. Direct access screen following FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle of the person who is looking for the destination 1 'Vehicle which exists in specific area 2 Information center 3 Vehicle high-density area search means 4 Question transmission means 5 Satisfaction information disclosure means 6 Position detection means 7 Data collection module 8 Data processing control Machine 9 Display

Claims (11)

An information system capable of two-way wireless communication between an information center and a plurality of vehicles,
The vehicle includes position detection means for detecting position information of the vehicle, and transmission means for transmitting the position information to the information center.
The information center
Vehicle high density area search means for searching for an area with high vehicle density based on the position information;
A question transmitting means for transmitting a question about satisfaction of the region to vehicles existing in the searched region;
A satisfaction degree information publishing means for receiving an answer to the question and publishing information on the satisfaction degree on a network;
And the vehicle receives information on the satisfaction level. The vehicle includes speed detection means for detecting the speed of the vehicle, and the transmission means transmits the speed information to the information center,
The information system according to claim 1, wherein the question transmission unit selects a vehicle that is stopped based on the speed information and transmits the question. The vehicle has passenger detection means for detecting information related to passengers other than the driver, and the transmission means transmits the passenger information to the information center;
When the question transmission means determines that the vehicle is moving based on the speed information, the question transmission means determines that the vehicle has a passenger other than the driver based on the passenger information. The information system according to claim 1 or 2, wherein the question is transmitted as far as possible.   4. The information center according to claim 1, wherein the information center creates map information of an area having high vehicle density and information on the satisfaction degree, and publishes the map information on the network. Information system.   4. The information center according to claim 1, wherein the information center creates parking information of an area having high vehicle density and information on the satisfaction degree, and publishes the parking information on the network. Information system. The vehicle high-density area search means searches for an area where the vehicle density is high and the store or event venue exists inside,
The said question transmission means transmits the question regarding the satisfaction of the person who visited the said store or the said event site using the said vehicle, or the question regarding the satisfaction of the customer of the said store. The information system according to claim 1. The vehicle further includes display means for displaying information from the information center,
The vehicle to which the question relating to the satisfaction level is transmitted displays the question on the display means,
After the question is answered, whether or not it is possible or impossible to respond to the inquiry request regarding the degree of satisfaction from a person who has not yet visited the area where the vehicle density is high is determined according to the judgment of the question answerer. 4. The information system according to claim 1, wherein the information system transmits to the center. The information center publishes on the network information on vehicles that can respond to the inquiry,
Based on the inquiry request from a person who has not yet visited the area where the vehicle density is high,
The information system according to claim 7, wherein a vehicle of a person who has not yet visited the area where the vehicle density is high is connected to a vehicle capable of responding to the inquiry.   The information system according to claim 8, wherein the information center deducts points from the person who made the inquiry and increases points to the person who responds to the inquiry. An in-vehicle information system in which a plurality of vehicles can communicate wirelessly via an information center and a network, and a passenger or driver of the vehicle exchanges information,
Each of the vehicles includes communication means for connecting to the network, and display means for displaying information from the network,
Each of the vehicles receives, from the network, information on a region having a high vehicle density, information on satisfaction of a person who has already visited the region, and information on vehicles existing in the region and capable of exchanging information. And displaying the information exchangeable vehicle as a connectable vehicle,
The information center
Based on a connection request to the connectable vehicle from a person who has not yet visited the area where the vehicle density is high, a vehicle of a person who has not yet visited the area, information existing in the area, and information An in-vehicle information system characterized by connecting a replaceable vehicle. Each vehicle further includes at least one of a microphone, a text document input means, and an indoor camera,
The connected vehicles exchange information by voice using the microphone, exchange information by chat using the text document input means, or view each other's images using the microphone, the indoor camera, and the display means. The in-vehicle information system according to claim 10, wherein information exchange is performed in any one of information exchange performed while

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