JP2007228256A - Delivery terminal device, delivery method thereof, delivery program of delivery terminal device, acquisition terminal device, delivery method thereof, delivery program thereof, delivery system, and delivery method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To orient delivery information only in a specific path Route 2. <P>SOLUTION: A mobile terminal CAR1 mounted on an emergency vehicle transmits on radio a data body (delivery information) to be delivered such as approach information of emergency vehicles, along with a specific path Route2 on which the data body is to be oriented (for example, travel path of the mobile terminal CAR1). The mobile terminal positioned within a radio reaching range receives a local information [2] containing the data body and the specific path Route2. The mobile terminal that has received the local information [2] compares the own-vehicle position with the specific path Route2, and transfers on radio the local information [2] to other mobile terminal if the own-vehicle is positioned on the specific path Route2. So, the mobile terminal CAR1 can deliver the local information [2] only to a mobile terminal CAR4 positioned on the specific path Route2 and a mobile terminal CAR6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a distribution terminal device in a local information distribution service for providing local information to mobile terminals scattered on a specific route such as a road, a distribution terminal device distribution method, a distribution terminal device distribution program, and an acquisition terminal The present invention relates to a device, a distribution method for an acquisition terminal device, a distribution program for the acquisition terminal device, a distribution system, and a distribution method for the distribution system.

“Local information” is information that is localized and stays in a certain region or route. Examples of local information for a given route include progress information, traffic jam information, and map information of public transportation such as ambulances and buses.
“Localization / stagnation” of local information means that local information is distributed to a mobile terminal in a specific area and the local information is held in the specific area.

FIG. 21 is a schematic diagram of a conventional local information distribution service.
The conventional local information distribution service has a configuration as shown in FIG. For example, when an ambulance wants to secure a traveling path of its own vehicle to go to a hospital, a conventional distribution system operates as follows.
First, the ambulance transmits ambulance route information as local information to the local information distribution server via the relay station.
Next, the local information distribution server analyzes the ambulance route information added to the local information, and distributes the ambulance route information to the relay station located in the range where the radio wave reaches the route.
The relay station distributes ambulance route information to a general vehicle traveling along the ambulance travel route.

In addition, means for sharing local information using inter-vehicle communication without using a server has been devised (Patent Document 1, Patent Document 2).
Japanese Patent Laying-Open No. 2005-202913 (Patent Document 1) proposes a method in which a predetermined area is set by inter-vehicle communication, and alarm information is transmitted and received according to the positional relationship between this area and the own vehicle.
Japanese Patent Laying-Open No. 2005-159695 (Patent Document 2) proposes a method of determining the priority of distribution to other vehicles in accordance with the relationship with other vehicles in the wireless LAN (Local Area Network) communication range of the own vehicle. ing.

In addition, a method for determining a network route in an ad hoc network has been proposed (Patent Document 3).
JP 2005-202913 A JP 2005-159695 A JP 2002-232352 A

The conventional local information distribution service as shown in FIG. 21 has a format in which local information distribution is transmitted from the local information distribution server to each mobile terminal via a relay station.
Currently, communication via a relay station employs a packet communication method used for mobile phone calls, etc., so users who receive local information communicate charges in a metered manner each time they receive a packet. You have to pay the carrier. In addition, it is essential to install a relay station for each arbitrary area, which increases installation costs. Furthermore, when local traffic jam information is distributed as local information, it is necessary to detect each vehicle traveling on the road as a traffic jam source. That is, since each vehicle becomes a traffic jam information provider, there is a problem that traffic jam information (detection information obtained by detecting a traveling vehicle) is concentrated on the local information distribution server and the load is increased.

  Moreover, local information distribution services using inter-vehicle communication such as Patent Document 1 and Patent Document 2 transmit local information by propagation of radio waves. However, local information spreads to areas that do not require local information, for example, road areas where ambulances do not travel (areas outside the local information optimum propagation area in FIG. 21). Then, there arises a problem that an unnecessary load is applied to the communication line due to communication of useless local information.

Further, the ad hoc network as in Patent Document 3 has the following problems.
22 and 23 are schematic diagrams of an ad hoc network.
In FIG. 22, the mobile terminal CAR1, mobile terminal CAR3, mobile terminal CAR4, mobile terminal CAR5, and mobile terminal CAR6 form a network (group) by the ad hoc network. The mobile terminal CAR1, the mobile terminal CAR3, the mobile terminal CAR4, the mobile terminal CAR5, and the mobile terminal CAR6 share the local information Local1 in the local information optimal propagation area.
Here, as shown in FIG. 23, when the mobile terminal CAR5 moves out of the local information optimal propagation area and the mobile terminal CAR2 moves into the local information optimal propagation area, the mobile terminal CAR5 leaves the group. The notification and the participation notification indicating participation of the mobile terminal CAR2 in the group must be notified to all terminals (mobile terminal CAR1, mobile terminal CAR3, mobile terminal CAR4, mobile terminal CAR6) in the network (group).
For this reason, when a mobile terminal that moves at high speed, such as an in-vehicle device of an automobile, performs communication, there is a possibility that a connection request or a response message for communicating a disconnection notification or a participation notification may be congested. Further, since an ad hoc network forms a network group, there is a problem that it takes time to establish a network when a sender or receiver such as an automobile moves at high speed.

  The present invention eliminates, for example, the server installation cost of the local information distribution service, does not require connection processing for group formation, and only provides local information for a specific route (local information optimal propagation area) with a mobile terminal. It is intended for localization.

  The distribution terminal device of the present invention transmits transmission data including distribution information to an acquisition terminal device and transmits the transmission data from an acquisition terminal device located in the distribution destination area to another acquisition terminal device. A distribution terminal device that distributes distribution information to each acquisition terminal device that is located in a distribution destination that indicates the area in which transmission data is transmitted from the acquisition terminal device when the acquisition terminal device is located in the area A transmission data generation unit A that acquires area information and distribution information from a storage device, generates transmission data including distribution information and distribution destination area information using a central processing unit, and stores the transmission data in the storage device; It is characterized by comprising a transmitter A which is obtained from a storage device and transmits using a transmitter.

According to the present invention, since the distribution terminal device transmits the distribution destination area information together with the distribution information, for example, the local information can be localized with respect to a specific route (local information optimal propagation area).
The present invention is based on an environment in which a plurality of mobile terminals (acquisition terminal devices) are scattered on an arbitrary road, and the first transmission mobile terminal (distribution terminal device) includes its own local information (transmission data) to be distributed. Add location information and specific route information (an example of distribution area information) and broadcast local information around you. The mobile terminal (acquisition terminal device) that has received the local information investigates the route information added to the local information and the position information (position information B) of the own vehicle, and the own vehicle is on the route (within the delivery destination area). Broadcast local information received around you only if you are. At this time, the local information is retained, and the local information is discarded when the position of the vehicle is deviated from the route (an example of the retained area information B). By repeating the above method, local information can be localized with respect to an arbitrary route without using a local information distribution server and a relay station.

Embodiment 1 FIG.
1 and 2 are system configuration examples of the distribution system according to the first embodiment.
1 and 2, mobile terminals CAR1 to CAR6 constitute the distribution system according to the first embodiment.
In FIG. 1, mobile terminals CAR1 to CAR6 are mounted on a car, and can create local information (transmission data) and broadcast it to the surroundings. Further, the mobile terminals CAR1 to CAR6 have a self-position acquisition system such as GPS (Global Positioning System). Further, the mobile terminal CAR1 to the mobile terminal CAR6 hold their own route as route information like a car navigation system. Further, the mobile terminals CAR1 to CAR6 compare the positional relationship between their own position and route information.
Note that there may be two or more arbitrary n of these mobile terminals. Each mobile terminal communicates with each other to transmit and receive data.
The mobile terminal CAR1 (first outgoing mobile terminal) moves on the road to the destination Goal1.
A route from the current location of the mobile terminal CAR1 to the destination Goal1 is assumed to be all route information All_Route1.

  In FIG. 2, a route cut out from the all route information All_Route1 is defined as a specific route Route1. The specific route Route1 is an example of a delivery destination area that delivers local information. The mobile terminal CAR1 can arbitrarily cut out the specific route Route1.

  1 and 2, the mobile terminal CAR1 extracts the specific route Route1 from the all-route information All_Route1 according to the current position while moving to the destination Goal1, and the mobile terminal CAR2 to the mobile terminal CAR6 located on the specific route Route1. A distribution system for distributing local information will be described below.

FIG. 3 is a diagram illustrating an example of hardware resources of the mobile terminal CAR1 to the mobile terminal CAR6 in the first embodiment.
In FIG. 3, the mobile terminal CAR1 to the mobile terminal CAR6 include a CPU 911 (also referred to as a central processing unit, a central processing unit, a processing unit, a processing unit, a microprocessor, a microcomputer, and a processor) that executes a program. The CPU 911 includes a ROM 913, a RAM 914, a communication board 915, a display device 901, a joystick 902, a numeric keypad 903, a speaker 909, a magnetic disk device 920, a GPS receiver 931, a gyro sensor 932, a wireless communication device 933 (transmitter). Connected to the receiver) and control these hardware devices. Instead of the magnetic disk device 920, a storage device such as an optical disk device or a memory card read / write device may be set.
A RAM 914 (Random Access Memory) is an example of a volatile memory. The storage medium of the ROM 913 (Read Only Memory) and the magnetic disk device 920 is an example of a nonvolatile memory. These are examples of a storage device, a storage device, or a storage unit.
The communication board 915, the joystick 902, the numeric keypad 903, and the like are examples of an input device, an input device, or an input unit.
The communication board 915, the display device 901, the speaker 909, and the like are examples of output devices, output devices, or output units.
The display device 901 is an example of an input device, an input device, or an input unit when a touch panel is attached to the screen.
A display device 901, a joystick 902, and a numeric keypad 903 constitute a car navigation system.
The GPS receiver 931 and the gyro sensor 932 are examples of a positioning device, a positioning device, or a positioning unit that measures the position of its own terminal at an arbitrary timing and stores the positioning result in the magnetic disk device 920 as position information.

The communication board 915 performs wireless communication with other mobile terminals via the wireless communication device 933.
The magnetic disk device 920 stores an OS 921 (operating system), a program group 923, and a file group 924. The programs in the program group 923 are executed by the CPU 911 and the OS 921.

The program group 923 stores programs for executing functions described as “˜unit” and “˜means” in the description of the embodiment. The program is read and executed by the CPU 911.
In the file group 924, in the description of the embodiment, “determination result”, “calculation result”, “processing result of”, etc. when the functions of “˜part” and “˜means” are executed, etc. Result data, data passed between programs that execute the functions of "~ part" and "~ means", other information, data, signal values, variable values, and parameters are "~ file" and "~ database" It is stored as each item. For example, local information, route information, position information, transmission restriction conditions and discard restriction conditions described later, map information used in the car navigation system, and the like are stored in the file group 924 as “˜file” and “˜database”. The “˜file” and “˜database” are stored in a recording medium such as a disk or a memory. Information, data, signal values, variable values, and parameters stored in a storage medium such as a disk or memory are read out to the main memory or cache memory by the CPU 911 via a read / write circuit, and extracted, searched, referenced, compared, and calculated. Used for CPU operations such as calculation, processing, output, printing, and display. Information, data, signal values, variable values, and parameters are stored in the main memory, cache memory, and buffer memory during the CPU operations of extraction, search, reference, comparison, operation, calculation, processing, output, printing, display, and extraction. Temporarily stored.
In addition, arrows in the flowcharts described in the description of the embodiments mainly indicate input / output of data and signals, and the data and signal values are the memory of the RAM 914, the flexible disk, the compact disk, the magnetic disk of the magnetic disk device 920, Others are recorded on a recording medium such as an optical disc, a mini disc, and a DVD (Digital Versatile Disc). Data and signal values are transmitted online via a bus 912, signal lines, cables, or other transmission media.

  In the description of the embodiments, what is described as “to part” and “to means” may be “to circuit”, “to apparatus”, “to apparatus”, and “to means”. -Step "," -procedure "," -process "may be used. That is, what is described as “˜unit” and “˜means” may be realized by firmware stored in the ROM 913. Alternatively, it may be implemented only by software, or only by hardware such as elements, devices, substrates, and wirings, by a combination of software and hardware, or by a combination of firmware. Firmware and software are stored as programs in a recording medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD. The program is read by the CPU 911 and executed by the CPU 911. That is, the program causes the computer to function as “˜unit” and “˜means”. Alternatively, the procedure or method of “˜unit” and “˜means” is executed by a computer.

FIG. 4 is a functional configuration diagram of mobile terminal CAR1 to mobile terminal CAR6 in the first embodiment.
A functional configuration of mobile terminal CAR1 to mobile terminal CAR6 (an example of a distribution terminal device and an example of an acquisition terminal device) in the first embodiment will be described below based on FIG.

The own vehicle position acquisition means CAR1A is a means for measuring the absolute position of the own terminal using the GPS receiver 931 and the gyro sensor 932.
The receiving means CAR1B is means for receiving local information broadcast from other mobile terminals. The receiving means CAR1B is a module capable of receiving data by wireless communication using a wireless protocol such as IEEE 802.11a / b / g or DSRC (Dedicated Short Range Communication). The receiving means CAR1B forms a module capable of receiving data by the communication board 915 and the wireless communication device 933.
The position analyzing means CAR1C is means for analyzing the route information added to the local information received by the receiving means CAR1B and calculating the positional relationship between the position information of the terminal itself and the route information.
The transmitting means CAR1D is means for broadcasting the local information received by the receiving means CAR1B. The transmission means CAR1D is a module capable of transmitting data by wireless communication using a wireless protocol such as IEEE802.11a / b / g or DSRC. The transmission means CAR1D forms a module capable of transmitting data by the communication board 915 and the wireless communication device 933.
The data storage means CAR1E is means for storing the local information received by the data analysis means CAR1B. The data storage unit CAR1 is a storage device such as a magnetic disk device 920, for example.
The all route information acquisition means CAR1F is, for example, a car navigation system, and a driver inputs a destination from a joystick 902 or a numeric keypad 903, and acquires all route information All_Route1 from the current location to the destination from the map information. It is means of.
The specific route information extraction means CAR1G is a means for extracting a specific route Route1 (an example of distribution destination area information) for localizing local information with respect to all route information All_Route1 acquired by the all route acquisition means CAR1F.
The data operation means CAR1H is a means for operating data such as inputting a data body Local1A (distribution information) to be transmitted and a transmission time from an input device.
The transmission interval determination means CAR1I is a means for determining the timing of transmitting local information based on the elapsed time from the transmission time of the previous local information.

FIG. 5 is a data configuration diagram of local information (an example of outgoing data) in the first embodiment.
The local information transmitted from the mobile terminal CAR1 and propagated by the mobile terminals CAR2 to CAR6 and localized on a specific route will be described below with reference to FIG.

The local information Local1 (an example of transmission data) includes a data body Local1A (an example of distribution information), route information Local1B (an example of distribution destination area information), a transmission restriction condition Local1C (an example of transmission interval information B), and a discard restriction condition Local1D ( An example of holding area information B).
The data body Local1A indicates the content of information to be localized on a specific route. The data body Local1A can handle data in various formats such as image data, moving image data, and audio data in addition to text data. For example, the progress warning information for notifying that an ambulance or fire truck passes, the traveling path securing information for notifying that the bus passes the priority road, and the like are examples of the data body Local1A.
The route information Local1B indicates a specific route where the local information Local1 is to be localized. Here, the specific route can be arbitrarily designated from the current location to the third intersection.
The outgoing restriction condition Local1C indicates a condition as to whether or not the local information Local1 should be broadcast. For example, a condition that the vehicle is distributed every time the vehicle travels 100 meters or that the vehicle is distributed every 10 seconds is an example of the transmission restriction condition Local1C.
The discard constraint condition Local1D indicates a condition as to whether the local information Local1 should be discarded or stopped. For example, when the vehicle passes or deviates the route indicated by the route information Local1B, when 10 minutes have passed since the first local information Local1 was sent, or after traveling the local information Local1 for the first time for 10 kilometers The case is an example of a discard restriction condition for discarding or stopping the distribution of the local information Local1.

FIG. 6 is a flowchart of a distribution process showing a distribution method of mobile terminal CAR1 (an example of a distribution terminal) in the first embodiment.
The distribution process of the mobile terminal CAR1 that is the source of the local information Local1 will be described below with reference to FIG.
Each “˜means” executes the following processing using a processing device such as the CPU 911.

<X1: Transmission data generation process A>
First, the data operation means CAR1H creates the format data of the local information Local1 as shown in FIG.
<X2: Transmission data generation process A>
Next, data to be transmitted by the data operating means CAR1H is created as a data body Local1A and stored in the local information Local1. The local information Local1 is, for example, emergency vehicle traffic information.

<X3>
Next, all route information All_Route1 to the destination is acquired by the all route acquisition means CAR1F. The all route information All_Route1 is, for example, a travel route calculated by the car navigation system for a set destination.

<X4: Transmission interval determination processing A>
Next, the mobile terminal CAR1 determines whether or not to comply with the transmission restriction condition Local1C before broadcasting the local information Local1 to surrounding vehicles by the transmission means CAR1D. For example, the transmission interval determination unit CAR1I acquires the transmission interval time (an example of the transmission interval information A) stored in the data storage unit CAR1E as the transmission constraint condition Local1C, and the transmission interval time has elapsed since the previous local information Local1 transmission. Is determined using the internal clock. If the transmission interval time is “1 minute” and the previous local information transmission time is “12:00”, the transmission interval determination unit CAR1I determines whether or not the current time is “12:01” or later. . If the current time is “12:01” or later, the transmission restriction condition is satisfied, and the process proceeds to process X5. If the current time is before “12:01”, the transmission restriction condition of the local information Local1 is not satisfied. Move to X9.

<X5: Position acquisition process A>
When it is determined in the process X4 that the mobile terminal CAR1 satisfies the transmission restriction condition, the own vehicle position acquisition unit CAR1A measures the current location.
<X6: Area generation processing>
Next, the specific route information extraction unit CAR1G extracts the specific route Route1 for localizing the local information Local1 from the all route information All_Route1. The specific route information extraction unit CAR1G extracts, for example, the route from the current point to the third intersection from the all route information ALL_Route1 as the specific route Route1.
<X7: outgoing data generation process A>
Next, the data operation means CAR1H creates the specific route Route1 extracted by the specific route information extraction means CAR1G as route information Local1B and stores it in the local information Local1. Further, the data operation means CAR1H acquires the transmission restriction condition Local1C for transmitting the local information Local1 to other mobile terminals from the data storage means CAR1E and stores it in the local information Local1. The transmission interval time for transmitting the local information is an example of the transmission restriction condition Local1C. Further, the data operation means CAR1H obtains the discard restriction condition Local1D from which the other mobile terminal discards the local information Local1 from the data storage means CAR1E and stores it in the local information Local1. The specific route Route1 is an example of the discard restriction condition Local1D.
<X8: Call processing A>
Then, the transmission means CAR1D broadcasts the local information Local1.

<X9>
Next, the data operation means CAR1H determines whether or not the destruction constraint condition for deleting the local information Local1 from the data storage means CAR1E is satisfied. The data operation means CAR1 acquires, for example, all route information All_Route1 stored in the data holding means CAR1E as a discard restriction condition, and the current location measured by the own vehicle position acquisition means CAR1A is positioned on the route indicated by the all route information All_Route1. It is determined whether the vehicle has arrived at the destination point. If the current location is outside the route indicated by the all-route information All_Route1 or the destination point, the process proceeds to the processing X10 to satisfy the discard constraint condition. If the current location is on the route indicated by the all-route information All_Route1 and is not the destination location, the discard constraint condition is set. Since it does not satisfy, it returns to the process X4.
<X10>
In the process X9, when it is determined that the data operation means CAR1H satisfies the discard restriction condition Local1D, the transmission means CAR1D stops and the data operation means CAR1H deletes the local information Local1 from the data storage means CAR1E. Then, the mobile terminal CAR1 ends the distribution process.

  By the above processing, for example, the mobile terminal CAR1 updates the route information Local1B indicating the route from the own vehicle position to the third intersection at one minute intervals according to the own vehicle position, and transmits the local information Local1.

FIG. 7 is a flowchart of distribution processing showing a distribution method of mobile terminal CAR2 to mobile terminal CAR6 (an example of an acquisition terminal device) in the first embodiment.
A distribution process of the mobile terminals CAR2 to CAR6, which is a distribution destination of the local information Local1, and is a transfer source that transfers the local information Local1 to other mobile terminals, will be described below with reference to FIG.
Each “˜means” executes the following processing using a processing device such as the CPU 911.

<Y1: Reception process B>
First, the receiving means CAR1B of the mobile terminal CAR2 to the mobile terminal CAR6 is in a standby state until the local information Local1 is received from the mobile terminal CAR1 or another mobile terminal. When the local information Local1 is received, the receiving unit CAR1B stores the local information Local1 in the data storage unit CAR1E.

<Y2: holding area determination process B>
The mobile terminal that has received the local information Local1 extracts the discard constraint condition Local1D from the local information Local1, and determines whether or not the discard constraint condition Local1D is satisfied. When the discard restriction condition Local1D indicates a specific route, the vehicle position acquisition unit CAR1A measures the current point of the vehicle, and the position analysis unit CAR1C determines whether the current point is located on the specific route. If the current location is outside the specific route, the process proceeds to process Y3 to satisfy the discard constraint condition Local1D. If the current location is on the specific route, the process proceeds to process Y4 because the discard constraint condition Local1D is not satisfied.

<Y3: outgoing data holding process B>
If it is determined in process Y2 that the mobile terminal satisfies the discard restriction condition Local1D, the transmission means CAR1D stops, and the data operation means CAR1H deletes the local information Local1 from the data storage means CAR1E. Then, the mobile terminal ends the distribution process.

<Y4: Position acquisition process B>
When the mobile terminal determines in the process Y2 that the discard restriction condition Local1D is not satisfied, first, the own vehicle position acquisition means CAR1A measures and acquires the position information of the own vehicle.

<Y5>
Next, the data operation means CAR1H extracts route information Local1B indicating the specific route Route1 from the local information Local1.

<Y6: Distribution area determination process B>
Next, the vehicle position information acquired by the process Y4 and the specific route Route1 are compared by the position analysis means CAR1C. If the position analysis means CAR1C determines that the vehicle position is outside the specific route Route1, the process returns to the process Y2.
<Y7: Transmission interval determination process B>
If the position analysis means CAR1C determines that the vehicle is located on the arbitrary route Route1 in the process Y6, the mobile terminal checks whether or not the transmission restriction condition Local1C of the local information Local1 is satisfied. For example, if the transmission restriction condition Local1C is the transmission interval time “1 minute” and the previous local information Local1 transmission time is “12:00”, the transmission interval determination means CAR1I has the current time “12: 1”. It is determined whether it is after. If the current time is "12:01" or later, the process goes to process Y8 to satisfy the outgoing restriction condition Local1C. If the current time is before "12:01", the outgoing restriction condition Local1C is not satisfied, and the process Y2 is performed again. Return to.

<Y8: Call processing B>
When it is determined in the process Y7 that the transmission restriction condition Local1C is satisfied, the transmission unit CAR1D broadcasts the local information Local1 to surrounding cars.

  By the above processing, the mobile terminals CAR2 to CAR6 measure, for example, at intervals of 1 minute, and when the local information Local1 is transmitted to other mobile terminals when located on the specific route Route1, but not located on the specific route Route1 The local information Local1 is discarded.

8-15 is a figure which shows the specific example of operation | movement of the delivery system in Embodiment 1. FIG.
A specific example of a method for localizing local information on a specific route in the distribution system described with reference to FIGS. 1 to 7 will be described below with reference to FIGS.

  8 to 15, the mobile terminal CAR1 is a distribution source that distributes the local information Local1, and moves toward the destination Goal1. The mobile terminals 2 to 6 are distribution destinations to which the local information Local1 is distributed, and are transfer sources that transfer the local information Local1 to other mobile terminals.

In the following description, the route (specific route Route1 or specific route Route2) to the second intersection in the route (all route information All_Route1) from the own vehicle position of the mobile terminal CAR1 to the destination Goal1 is assumed to be route information Local1B. The route from the position of the mobile terminal CAR1 shown in FIG. 8 to the second intersection is the specific route Route1, and the route from the mobile terminal CAR1 moved to the position shown in FIG. 12 to the second intersection is the specific route Route2. is there.
Further, the transmission interval time “1 minute” is set as the transmission restriction condition Local1C.
Similarly to the route information Local1B, the specific route Route1 or the specific route Route2 is set as the discard restriction condition Local1D.
8 to 14, the local information Local1 is denoted as “1”.

The mobile terminal CAR1 first creates local information Local1 (X1), and stores the data body Local1A in the local information Local1 (X2). Next, the mobile terminal CAR1 acquires all route information All_Route1 (X3). Next, the mobile terminal CAR1 determines the transmission restriction condition (X4), and if the transmission restriction condition is satisfied, the mobile terminal CAR1 determines its own vehicle position (X5) and determines the specific route Route1 for localizing the local information Local1. Extract based on the vehicle position. Here, as shown in FIG. 8, the specific route Route1 is set from the position of the mobile terminal CAR1 to the second intersection (X6). Next, the mobile terminal CAR1 sets the specific route Route1 in the route information Local1B, sets the transmission interval time “1 minute” in the transmission restriction condition Local1C, sets the specific route Route1 in the discard restriction condition Local1D, and sets the local information Local1. Is generated (X7). Then, as shown in FIG. 8, the mobile terminal CAR1 broadcasts the local information Local1 to the surroundings (X8).
In FIG. 8, a broadcast range Area1 refers to a radio wave range in which radio transmitted by the mobile terminal CAR1 can reach, and the mobile terminal CAR1 can communicate with other mobile terminals only within the broadcast range Area1. That is, in FIG. 8, the mobile terminal CAR1 can distribute the local information Local1 to the mobile terminal CAR2 located in the broadcast range Area1.

Next, attention is paid to the mobile terminal CAR2 in FIG. The mobile terminal CAR2 is in a local information reception standby state (Y1), and receives the local information Local1 from the mobile terminal CAR1. The mobile terminal CAR2 confirms the discard constraint condition Local1D of the received local information Local1 (Y2), acquires the vehicle position when the discard constraint condition is not satisfied (Y4), and uses the route information Local1B added to the local information Local1. Reference (Y5). Then, the mobile terminal CAR2 determines whether the host vehicle is located within the delivery destination area indicated by the route information Local1B (Y6). In FIG. 9, since the mobile terminal CAR2 is located on the specific route Route1, it is determined that the discard restriction condition is satisfied (Y2), and it is determined that the own vehicle is located in the delivery destination area (Y6). Therefore, the mobile terminal CAR2 determines the transmission restriction condition Local1C of the local information Local1, and if the transmission restriction condition Local1C is satisfied (Y7), it broadcasts the local information Local1 to the surrounding cars in the same manner as the mobile terminal CAR1 (Y8). ). Since the mobile terminal CAR2 has just received the local information Local1 and has not transmitted the local information Local1, it is assumed that the transmission restriction condition is satisfied (Y7).
In FIG. 9, a broadcast range Area2 indicates a radio wave range in which radio transmitted by the mobile terminal CAR2 reaches, and the mobile terminal CAR2 can communicate with other mobile terminals only within the broadcast range Area2. The size of the radio wave range that each mobile terminal can distribute local information, the number of local information that each mobile terminal can simultaneously distribute, and the like may be the same or different. That is, the size of the broadcast range Area1 of the mobile terminal CAR1 and the size of the broadcast range Area2 of the mobile terminal CAR2 may be the same or different.

By repeating the above operation, as shown in FIG. 10, it is possible to distribute the local information Local1 to a plurality of mobile terminals existing on the specific route Route1.
That is, as shown in FIG. 10, the mobile terminal CAR1 transmits local information Local1, the mobile terminal CAR2 located in the broadcast range Area1 receives and transmits local information Local1 from the mobile terminal CAR1, and is located in the broadcast range Area2. The mobile terminal CAR4 receives and transmits the local information Local1 from the mobile terminal CAR2, and the mobile terminal CAR3 and the mobile terminal CAR5 located in the broadcast range Area4 receive and transmit the local information Local1 from the mobile terminal CAR4. Thereby, the mobile terminals CAR1 to CAR5 hold the local information Local1.
From the above, it can be said that the local information Local1 is localized on the specific route Route1.

Next, a method for localizing the local information Local1 only on the specific route Route1, that is, a method for not localizing the local information Local1 in an area other than the specific route Route1 will be described.
In FIG. 10, attention is paid to the operation of the mobile terminal CAR6. The mobile terminal CAR6 is in a local information standby state (Y1), and is included in the radio range Area3 of the mobile terminal CAR3, and therefore receives the local information Local1. In FIG. 10, since the mobile terminal CAR6 is not located in the specific route Route1, the discard restriction condition is satisfied (Y2), and the local information Local1 is discarded (Y3). That is, the local information Local1 is not localized outside the specific range Route1. Further, even when the discard constraint condition Local1D of the local information Local1 is different from the route information Local1B and the vehicle position is not located in the specific route Route1 indicated by the route information Local1B even when the discard constraint condition is not satisfied, the local information Local1 is stored. It does not broadcast to surrounding cars. That is, the local information Local1 is not diffused outside the specific route Route1, and the local information Local1 is localized only on the specific route Route1.

  Next, as shown in FIG. 11, it is assumed that each mobile terminal has moved. That is, the mobile terminal CAR1 that is the distribution source of the local information Local1 has passed the first intersection. Also, assuming that the route from the destination of the mobile terminal CAR1 to the second intersection is the specific route Route2, the mobile terminal CAR2, the mobile terminal CAR3, and the mobile terminal CAR5 move out of the specific route Route2, and the mobile terminal CAR6 is the specific route Moved into Route 2.

FIG. 12 shows a state after the mobile terminals CAR1 to CAR6 have moved.
In FIG. 12, the mobile terminal CAR1 sets the specific route Route2 from the position of the own vehicle to the second intersection (X6), and updates the route information Local1B of the local information Local1 with the specific route Route2 as described above (X7). . At this time, the local information updated and held by the mobile terminal CAR1 is referred to as local information Local1_Route2. 12 to 15, the local information Local1_Route2 is denoted as “2”. Then, the mobile terminal CAR1 broadcasts local information Local1_Route2 to surrounding mobile terminals (X8).
The local information Local1_Route2 broadcast from the mobile terminal CAR1 is first propagated to the mobile terminal CAR3 and the mobile terminal CAR6 that exist within the radio wave range Area1 of the vehicle. Since it is determined that the mobile terminal CAR6 is located in the specific route Route2 (Y6), the local information Local1_Route2 is broadcast to the surroundings (Y8), but the mobile terminal CAR3 is determined to be located outside the specific route Route2 (Y6). The local information Local1_Route2 is not broadcast.

  By repeating the above, a state as shown in FIG. 13 is obtained. That is, when the mobile terminal CAR1, mobile terminal CAR6, and mobile terminal CAR4 located in the specific route Route2 propagate the local information Local1_Route2, the local information Local1_Route2 becomes the mobile terminal CAR1, the mobile terminal CAR3, the mobile terminal CAR4, the mobile terminal CAR5, and It will be held in the mobile terminal CAR6. At this time, the mobile terminal CAR2 cannot receive the local information Local1_Route2 because it is not within the radio wave range of the mobile terminal located in the specific route Route2, and holds the local information Local1.

  Therefore, the range in which the data body Local1A is localized is an OR range RouteX of the localization range of the local information Local1 and the localization range of the local information Local1_Route2, as shown in FIG.

  Therefore, the mobile terminal CAR1 sets “outside the path included in the path information Local1B” as the discard restriction condition Local1D when broadcasting the local information. In this case, for example, in the case of the mobile terminal CAR2, since it is determined that the terminal is out of the specific route Route1 (route information Local1B) added to the local information Local1, the discard restriction condition is satisfied (Y2), Information Local1 is discarded (Y3). Similarly, since the mobile terminal CAR3 and the mobile terminal CAR5 determine that their own terminals are out of the specific route Route2 (route information Local1B) added to the local information Local1_Route2, they satisfy the discard restriction condition (Y2), and the local information Local1_Route2 is discarded (Y3). With the above processing, the local information Local1_Route2 is localized on the specific route Route2 set by the mobile terminal CAR1 as shown in FIG.

  As described above, even when the mobile terminal CAR1 moves, the local information is always localized on a specific route set by the mobile terminal CAR1 based on an arbitrary condition such as “route to the second intersection”. To do. For this reason, it is possible to avoid redundant local information propagation in a place where local information is unnecessary, such as a place off the movement route of the mobile terminal CAR1, and network congestion caused thereby.

The setting contents of the data body Local1A, the route information Local1B, the transmission restriction condition Local1C, and the discard restriction condition Local1D included in the local information Local1 in the above description are arbitrary, and are selected according to the characteristics of the local information distribution service using the distribution system. do it.
Examples of local information Local1 include emergency vehicle traffic information and bus traffic information on bus priority roads.
Further, as an example of the route information Local1B, there are a total route information All_Route1 and a specific route Route1 which is a part of the whole route information All_Route1. The specific route Route1 is selected based on an arbitrary condition such as “a route from the current location to the second intersection”, “a route from the current location to 500 m ahead”, or “a route from the current location 100 m to 500 m ahead”. Further, the route information Local1B may not be the movement route of the source mobile terminal of the local information Local1, but may be a specific area such as an accident occurrence site or a construction site. Moreover, the content of the route information Local1B may be plural. For example, a plurality of intersections leading to the accident site may be used as the route information Local1B.
Further, as an example of the transmission restriction condition Local1C, there are conditions such as “has a specific time elapsed since the previous local information transmission time” or “has moved a specific distance from the previous local information transmission point?”.
Further, as examples of the discard restriction condition Local1D, “Is it located outside the route of the specific route Route1”, “Is it located outside the route of the all route information All_Route1”, “Has local information been transmitted a specific number of times”, The condition is “Is it a specific distance away from the sender?”.

  Next, an example of a local information distribution service using the distribution system in the first embodiment will be described.

<Example 1>
As an example in the first embodiment of the local information delivery service, “emergency vehicle traveling route securing method” can be considered.

With the improvement of manufacturing technology in current general vehicles, the airtightness in the vehicle improves and shields unpleasant sounds such as engine sounds to provide comfort, but on the other hand, there are more cases where warning sounds such as emergency vehicles can not be heard ing. In addition, facilitating the passage of emergency vehicles increases the possibility of helping critically ill patients.
In order to solve the above-mentioned problem, a local information distribution service is performed with a configuration as shown in FIG.
First, the ambulance creates local information Local1 in which the data body Local1A such as a warning message and sound information indicating that the ambulance is approaching is set. Then, all route information from the own vehicle to the hospital (specific route area in FIG. 16) is added to the local information Local1 as route information Local1B, and broadcasted to surrounding ordinary vehicles. If a general car has a car navigation system as shown in FIG. 17, for example, the warning message and sound as well as the route information of the ambulance are mapped onto the map and displayed simultaneously.
However, when the distance between the ambulance and the hospital is long, if there is no transmission restriction condition Local1C in the local information Local1, the warning message is propagated to a far place and the network congestion increases. Therefore, the ambulance extracts the arbitrarily selected route (specific route) such as “to the second intersection” from all the routes, sets it as the transmission restriction condition Local1C, and updates it locally to update the local Broadcast information Local1. Thereby, network congestion can be suppressed.
In addition, since the warning information is not required on the route through which the ambulance has passed, the ambulance sets a condition to cause the mobile terminal that has deviated from the specific route to delete the warning information in the discard restriction condition Local1D of the local information Local1. Just keep it.
As a result, it is possible to efficiently warn a general vehicle on the traveling path of the ambulance, and the running of the ambulance can be made smooth.

<Example 2>
As an example in the first embodiment of the local information distribution service, “a driving support service for public transportation” is conceivable.

In order to facilitate the passage of public transportation such as route buses, priority lanes are set on some roads with time restrictions, but priority traffic lanes often do not function due to the driving of ordinary cars in places where traffic congestion occurs. . On the other hand, if the bus does not pass for a certain period, clearing the priority lane worsens the congestion of ordinary cars. In addition, in order to solve these problems, PTPS (Public Transportation Priority Systems: public vehicle priority system) is used. However, conventional PTPS requires installation on the road such as an optical beacon, and also performs linked processing with a traffic light. Therefore, the cost of introducing the system becomes a problem.
In order to solve the above problems, a local information distribution service is performed with the configuration shown in FIGS.
First, the bus creates local information Local1 in which a data body Local1A such as a warning message and sound information indicating that the bus is approaching is set. Then, the bus adds the priority road range of the bus to the local information Local1 as the route information Local1B, and broadcasts the local information Local1 to surrounding general vehicles. At this time, the general vehicle displays a warning message, current bus position information, etc. on the screen of the car navigation system as in the first embodiment, and prompts the driver to change the lane as shown in FIG. I do not care. On the other hand, when the bus stops at or is about to stop, a message (data body Local1A) that the bus can pass the priority lane is broadcast to the surrounding general vehicles, as shown in FIG. In addition, the priority lane may be permitted for ordinary vehicles.
In order to prevent an increase in network congestion, the bus may have a range between stops as route information Local1B. In addition, since the warning information is unnecessary at the point where the bus has already passed, the discard constraint condition Local1D may be outside the route range of the bus.
As a result, it is possible not only to facilitate the running of public transportation such as a route bus, but also to ease the congestion on the priority lane. It also contributes to the reduction of road equipment installation costs.

<Example 3>
As an example in the first embodiment of the local information distribution service, an “accident traffic jam avoidance service” can be considered.

The arrival time to the destination may be delayed due to traffic jams. In the current DRGS (Dynamic Route Guidance System: Dynamic Route Guidance System), not only the delay of server communication occurs but also the installation of on-road devices such as optical beacons in order to notify the state of accidents and traffic jams via the server. Cost was a challenge.
In order to solve the above problems, a local information distribution service is performed with a configuration as shown in FIG.
When an accident occurs, local information Local1 is broadcast from the mobile terminal near the accident site to the surroundings regarding the state of the accident and the location where the accident occurred. At this time, a plurality of intersections connected to the place where the accident occurred may be designated as the specific route set in the route information Local1B of the local information Local1. In the case of FIG. 20, the specific route 1 to the specific route 3 are added to the local information Local1 as route information Local1B. Then, the transmission restriction condition Local1C is set in the specific route 1 to the specific route 3, and the discard restriction condition Local1D is set 1 kilometer away from the accident site. The local information Local1 broadcast by the first caller near the accident is distributed to a general vehicle traveling in the oncoming lane. At this time, since this general vehicle does not satisfy the discard restriction condition Local1D, the vehicle continues to travel while maintaining the accident information. When the specified route 1 to specified route 3 is reached, the received accident information is broadcast to a general vehicle traveling around the intersection. The broadcast information is localized with respect to each specific route by the traffic of a plurality of general vehicles. If the data body Local1A is described in the local information Local1 so as to map the accident information on the car navigation system screen for a general vehicle that has reached a specific route (intersection), within the range of the specific route, Can inform the existence of an accident condition.
This will not only increase traffic congestion due to accidents and other sudden events on all roads, and not only allow ordinary cars to avoid traffic jams, but also promote emergency vehicles to the accident site. Not only can the installation cost of a server or the like be reduced.

<Example 4>
As an example of the first embodiment of the local information distribution service, “advertisement information distribution service in a shopping street” can be considered.

When distributing advertisements of your own store in a shopping street, you can think of ways to distribute leaflets or post store information on the Internet. However, in the former case, personnel costs such as labor costs are incurred, and in the latter case, PULL-type (passive type) information distribution, in which the site is accessed by general customers, it is efficient to attract customers in the shopping street. bad.
In order to solve the above problem, first, an advertisement is broadcast as local information around the shop. At this time, if the road of the shopping street to which the store belongs is set as the route information Local1B, the advertisement is localized in the shopping street, and general customers who have reached the shopping street can receive and view the advertisement. In addition, if the access information to the store is added to the data body Local1A, the route guidance to the store can be executed on the mobile terminal of the general customer, and the general customer can be easily guided to the store. Can do.
As a result, the advertiser in the shopping street can reduce the labor cost and the advertising cost, and can efficiently distribute the advertisement of the own store to the general customers who come and go to the shopping street.

<Example 5>
As an example in the first embodiment of the local information distribution service, “dangerous part warning service” can be considered.

In order to know in advance a sudden danger spot or the like caused by a temporary change in weather conditions such as fallen trees or flooding information due to a typhoon, the situation cannot be grasped unless the spot is actually passed. For this reason, a delay may occur before the information is reflected in a conventional DRGS (dynamic route guidance system) or the like.
In order to solve the above problem, the first discoverer who finds a fallen tree or the like broadcasts local information Local1 in which information about the situation is set in the data body Local1A and the surrounding road is set in the route information Local1B. If a plurality of intersections that approach a road with a fallen tree are set in the route information Local1B, it is possible to notify a general vehicle that has entered the intersection.
As a result, it is possible to detect suddenly dangerous places such as fallen trees without installing roadside equipment on any road.

<Example 6>
As an example in the first embodiment of the local information distribution service, “a motorcycle accident prevention method” can be considered.

There are cases where a general vehicle is unaware of the approach of a motorcycle passing through a side road and involves a motorcycle when making a left turn.
In order to solve the above-described problem, the motorcycle broadcasts local information Local1 to the surroundings as a data body Local1A with respect to a general vehicle on the traveling route of the own vehicle before passing through the intersection. The broadcast information is transmitted to a general vehicle running ahead, and the general vehicle can know in advance that a motorcycle may pass on the left side of its own vehicle. Thereby, the entrainment accident can be avoided. In addition, since local information Local1 is also notified to ordinary vehicles running on the oncoming lane, it is possible to know in advance the two-wheeled vehicle that is in the shadow of the vehicle that passes when turning right, and similarly it is possible to prevent contact accidents It is.
As a result, it is possible to prevent an accident involving a motorcycle traveling along a certain route and a contact accident.

  The following local information propagation / localization method has been described in the first embodiment.

  A local information propagation / localization method for providing local information to a plurality of mobile terminals, and propagating / localizing arbitrary local information on an arbitrary route without using a specific server device.

  Furthermore, the local information is information that is desired to be localized / retained from a location where the first transmitting mobile terminal currently exists, and is related to text information related to the route, general music data and video. A local information propagation / localization method characterized by adding arbitrary route information of the first transmitting mobile terminal in addition to data. Here, the route information means not only the route from the current location to the destination but also a part or an arbitrary route.

  Furthermore, when a mobile terminal propagates local information, it broadcasts local information to other mobile terminals that exist in the vicinity only when it exists on an arbitrary route added to the local information. Local information propagation / localization method characterized by propagating local information only to mobile terminals.

  Furthermore, the local information propagation / localization method characterized in that the local information is localized on the route by holding the local information only when the mobile terminal is on an arbitrary route added to the local information.

  Furthermore, when the mobile terminal deviates from an arbitrary route added to the local information, the local information is localized only on the route by discarding the local information.

A specific example of the above local information propagation / localization method is shown below.
For example, ambulance is a local information sender, and ambulance approach information is local information. The ambulance adds the traveling route information that the ambulance is scheduled to pass to the ambulance approach information and broadcasts it to a plurality of ordinary vehicles in the vicinity. A regular vehicle also broadcasts its ambulance approach information, which causes the ambulance approach information to propagate further.
First, when a general vehicle broadcasts ambulance approach information, the ambulance travel route information added to the ambulance access information is referred to and it is confirmed whether the vehicle is on the ambulance travel route. At this time, (1) if the own vehicle is on the traveling path of the ambulance, the ambulance approach information is immediately broadcast and the ambulance approach information is transferred to surrounding vehicles. However, (2) Ambulance approach information is not broadcasted unless the own vehicle is on the traveling path of the ambulance. By repeating (1) and (2), ambulance approach information can be localized on the ambulance route by a plurality of general vehicles. Thereby, not only the nearest intersection of the ambulance but also the general vehicles located at all the intersections in the progress of the ambulance can be warned of the approach of the ambulance, and the ambulance can proceed smoothly. In addition, ordinary vehicles do not need to belong to the same network on the travel route, and only need to hold and broadcast ambulance approach information received from ordinary vehicles for a certain period of time. As a result, the ambulance approach information localized on the traveling route can be notified to a general vehicle that has newly arrived on the route. In addition, since information is propagated only on the route of the ambulance, it is possible to suppress network congestion due to notification or redundant broadcasting to an area away from the route.

  That is, the distribution system according to the first embodiment is a means for propagating and localizing local information to mobile terminals scattered on an arbitrary route for a certain period of time using communication of only the mobile terminal without providing a specific server. I will provide a. This eliminates the need to send and store suddenly generated information such as emergency vehicle approach information and local traffic jam information to the server. For this reason, not only the server installation cost is reduced, but also network congestion due to server access need not be considered. Here, local information is generally information closely related to a certain region or route, but may be text, music, or video data that is unrelated to the region.

That is, the distribution system of the first embodiment has the following features, for example.
(1) Local information can be efficiently propagated on a route.
(2) Local information can be localized on the route.
(3) Since local information is localized and propagated only on the route, network congestion outside the route can be suppressed.

The following features have also been described in the first embodiment.
By setting the local information Local1 and the route information Local1B indicating the delivery destination area together with the data body Local1A to be delivered, the data body Local1A can be delivered to the mobile terminals located in the delivery destination area. In addition, communication of the data body Local1A outside the distribution destination area can be suppressed.
Moreover, even if the mobile terminal CAR1 moves, the mobile terminal CAR1 measures the position at every transmission interval that is conditional on time, distance, etc., and updates the distribution destination area according to the measured self-position. The local information Local1 can be transmitted by designating an area (relative area with respect to the mobile terminal CAR1) at any time.
In addition, when it is desired to designate a plurality of locations as delivery destination areas, even if the mobile terminal is not located in any delivery destination area by setting an area including the plurality of delivery destination areas as the discard restriction condition Local1D. Local information Local1 can be held. Then, by holding the local information Local1, the data body Local1A can be distributed in any distribution destination area. Also, the local information Local1 can be discarded by the mobile terminal outside the area indicated by the discard constraint condition Local1D.

  The distribution system described in the first embodiment transmits a transmission terminal that transmits transmission data including distribution information, and transmits and transmits transmission data when the transmission data is received and located in a distribution destination area. It is an example of the distribution system which has an acquisition terminal device and distributes distribution information from the distribution terminal device to the acquisition terminal device located in the distribution destination area.

The mobile terminals CAR1 to CAR6 transmit transmission data (local information) including distribution information (data body Local1A) to the acquisition terminal apparatus (other mobile terminals) from the acquisition terminal apparatus located in the distribution destination area to the other It is an example of the distribution terminal device which makes an acquisition terminal device transmit transmission data and distributes distribution information to each acquisition terminal device located in the distribution destination area.
Further, the mobile terminals CAR1 to CAR6 receive transmission data including distribution information, and transmit the transmission data and distribute to other terminal devices in the distribution destination area when the terminal apparatus is located in the distribution destination area. It is an example of the acquisition terminal device which moves while delivering information.

The data operation means CAR1H stores distribution destination area information (arbitrary route information Route1) and distribution information indicating the area in which the transmission data is transmitted from the acquisition terminal apparatus when the acquisition terminal apparatus is located in the area. It is an example of the transmission data generation part A which acquires from the (data storage means CAR1E) and generates transmission data including distribution information and distribution destination area information using a central processing unit (CPU 911) and stores it in a storage device.
The data operation means CAR1H holds the transmission data in the storage device when the holding area determination unit B determines that the terminal device is located in the holding area, and the holding area determination unit B holds the terminal device. It is an example of the transmission data holding part B which discards transmission data from a memory | storage device when it determines with not being located in an area.

The transmission means CAR1D is an example of a transmission unit A that acquires transmission data from a storage device and transmits the transmission data using a transmitter.
Further, the transmission means CAR1D acquires the transmission data from the storage device when the distribution destination area determination unit B determines that the terminal device is located in the distribution destination area, transmits the data using a transmitter, and transmits the distribution destination. It is an example of the transmission part B which does not transmit transmission data, when the area determination part B determines with the own terminal device not being located in a delivery destination area.

The transmission interval determination means CAR1I obtains transmission interval information A (an example of a transmission restriction condition) indicating the interval at which the terminal device transmits transmission data from the storage device and determines whether the transmission interval of the terminal device has elapsed or the central processing unit. It is an example of the transmission interval determination part A determined using.
Further, the transmission interval determination means CAR1I obtains transmission interval information B (an example of a transmission restriction condition) indicating the interval at which the terminal device transmits transmission data from the storage device, and determines whether the transmission interval of the terminal device has elapsed. It is an example of the transmission interval determination part B determined using an apparatus.

The own vehicle position acquisition means CAR1A is an example of the position acquisition unit A that acquires the position information A of the terminal device from the positioning device and stores it in the storage device when the transmission interval determination unit A determines that the transmission interval has elapsed. is there.
Further, the own vehicle position acquisition unit CAR1A acquires the position information B of the own terminal device from the positioning device and stores it in the storage device when the transmission interval determination unit B determines that the transmission interval has elapsed. It is an example.

  Arbitrary route information extraction means CAR1G, when the transmission interval determination unit A determines that the transmission interval has passed, the distribution destination relative information indicating the distribution destination area based on the distribution information and the position of the terminal device, and the position of the terminal device An example of an area generation unit A that acquires information A from a storage device, calculates distribution destination area information using a central processing unit based on position information A and distribution destination relative information, and stores the distribution destination area information in the storage device. is there.

  The receiving means CAR1B is an example of the receiving unit B that receives the transmission data including the distribution destination area information indicating the area where the distribution information is distributed and the distribution information using a receiver and stores the data in the storage device.

When the transmission interval determination unit B determines that the transmission interval has elapsed, the position analysis means CAR1C acquires the transmission data and the position information B from the storage device, compares the distribution destination area with the position of the terminal device itself, and It is an example of the delivery destination area determination part B which determines whether a terminal device is located in a delivery destination area using a central processing unit.
Further, the position analysis means CAR1C obtains the holding area information B (an example of the discard restriction condition) indicating the area holding the transmission data and the position information B from the storage device, and compares the holding area with the position of the terminal device itself. It is an example of the holding area determination part B which determines whether the own terminal device is located in a holding area using a central processing unit.

2 is a system configuration example of a distribution system according to the first embodiment. 2 is a system configuration example of a distribution system according to the first embodiment. [Fig. 3] Fig. 3 is a diagram illustrating an example of hardware resources of mobile terminals CAR1 to CAR6 in the first embodiment. FIG. 3 is a functional configuration diagram of mobile terminals CAR1 to CAR6 in the first embodiment. FIG. 3 is a data configuration diagram of local information (an example of outgoing data) in the first embodiment. 4 is a flowchart of a distribution process showing a distribution method of mobile terminal CAR1 (an example of a distribution terminal) in the first embodiment. 7 is a flowchart of distribution processing showing a distribution method for mobile terminals CAR2 to CAR6 (an example of an acquisition terminal device) in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 5 is a diagram showing a specific example of the operation of the distribution system in the first embodiment. FIG. 3 is a diagram illustrating a local information distribution service according to the first embodiment. FIG. 3 is a diagram illustrating a local information distribution service according to the first embodiment. The figure which shows the local information delivery service in Example 2. FIG. The figure which shows the local information delivery service in Example 2. FIG. The figure which shows the local information delivery service in Example 3. FIG. The schematic diagram of the conventional local information delivery service. The outline figure of an ad hoc network. 1 is a schematic diagram of an ad hoc network.

Explanation of symbols

  CAR1, CAR2, CAR3, CAR4, CAR5, CAR6 Mobile terminal, Goal1 destination, All_Route1 all route information, Route1, Route2 specific route, CAR1A own vehicle position acquisition means, CAR1B reception means, CAR1C position analysis means, CAR1D transmission means, CAR1E Data storage means, CAR1F all-route information acquisition means, CAR1G specific route information extraction means, CAR1H data operation means, CAR1I transmission interval determination means, Local1, Local1_Route1 local information, Local1A data body, Local1B path information, Local1C transmission restriction condition, Local1D Constraints, Area1, Area2, Area3, Area4, Area5 Broadcast range, 901 Display 902 Joystick, 903 numeric keypad, 909 speaker, 911 CPU, 912 bus, 913 ROM, 914 RAM, 915 communication board, 920 magnetic disk unit, 921 OS, 923 program group, 924 file group, 931 GPS receiver, 932 gyro Sensor, 933 wireless communication device.

Claims (11)

Each acquisition terminal located in the distribution destination area by transmitting transmission data including distribution information to the acquisition terminal apparatus and transmitting the transmission data from the acquisition terminal apparatus located in the distribution destination area to other acquisition terminal apparatuses A distribution terminal device that distributes distribution information to the device;
When the acquisition terminal device is located within the area, the distribution area information and the distribution information indicating the area for transmitting the transmission data from the acquisition terminal apparatus are acquired from the storage device, and the distribution information and the distribution area information are obtained. A transmission data generation unit A that generates transmission data including a central processing unit and stores it in a storage device;
A distribution terminal device comprising: a transmitter A that acquires transmission data from a storage device and transmits the data using a transmitter. The distribution terminal device further includes:
A transmission interval determination unit A that acquires transmission interval information A indicating an interval at which the terminal device transmits transmission data from a storage device and determines whether or not the transmission interval of the terminal device has elapsed using a central processing unit;
A position acquisition unit A that acquires the position information A of the terminal device from the positioning device and stores it in the storage device when the transmission interval determination unit A determines that the transmission interval has passed;
When the transmission interval determination unit A determines that the transmission interval has elapsed, the distribution information, the distribution destination relative information indicating the distribution destination area on the basis of the position of the terminal device, and the position information A of the terminal device are stored from the storage device. An area generation unit A that calculates and distributes distribution destination area information using a central processing unit based on the acquired position information A and distribution destination relative information, and stores the distribution destination area information in a storage device;
The transmission data generation unit A generates transmission data when the transmission interval determination unit A determines that the transmission interval has elapsed,
The distribution terminal device according to claim 1, wherein the transmission unit A transmits the transmission data when the transmission interval determination unit A determines that the transmission interval has elapsed. When the transmission interval of the acquisition terminal device elapses, the transmission data generation unit A transmits the transmission interval information B that causes the acquisition terminal device to transmit transmission data and the acquisition terminal device when the acquisition terminal device is located in the area. The transmission data is generated including holding area information B indicating the area for holding the transmission data and causing the acquisition terminal apparatus to discard the transmission data when the acquisition terminal apparatus is not located in the area,
The distribution terminal device according to claim 1, wherein the transmission unit A transmits transmission data including transmission interval information B and holding area information B. 4. Each acquisition terminal located in the distribution destination area by transmitting transmission data including distribution information to the acquisition terminal apparatus and transmitting the transmission data from the acquisition terminal apparatus located in the distribution destination area to other acquisition terminal apparatuses A distribution terminal device distribution method for distributing distribution information to a device,
The transmission data generation unit A acquires the distribution destination area information and the distribution information indicating the area for transmitting the transmission data from the acquisition terminal apparatus when the acquisition terminal device is located in the area, and distributes the distribution information. And transmission data generation processing A for generating transmission data including distribution destination area information using a central processing unit and storing it in a storage device,
A distribution method for a distribution terminal device, characterized in that a transmission unit A performs transmission processing A in which transmission data is acquired from a storage device and transmitted using a transmitter.   A distribution terminal apparatus distribution program for causing a computer to execute the distribution terminal apparatus distribution method according to claim 4. An acquisition terminal that receives transmission data including distribution information, transmits the transmission data when the terminal device is located in the distribution destination area, distributes the distribution information to other terminal apparatuses in the distribution destination area, and moves Device,
A receiving unit B that receives the transmission data including the distribution destination area information indicating the area where the distribution information is distributed and the distribution information using a receiver and stores the data in a storage device;
A transmission interval determination unit B that obtains transmission interval information B indicating an interval at which the terminal device transmits transmission data from the storage device and determines whether or not the transmission interval of the terminal device has elapsed using a central processing unit;
A position acquisition unit B that acquires the position information B of the terminal device from the positioning device and stores it in the storage device when the transmission interval determination unit B determines that the transmission interval has passed;
When the transmission interval determination unit B determines that the transmission interval has passed, the transmission data and the position information B are acquired from the storage device, the distribution destination area is compared with the position of the terminal device, and the terminal device distributes the distribution destination. A delivery destination area determination unit B that determines whether it is located in the area using a central processing unit;
When the delivery destination area determination unit B determines that the terminal device is located in the delivery destination area, the transmission destination data is acquired from a storage device and transmitted using a transmitter, and the delivery destination area determination unit B An acquisition terminal device comprising: a transmission unit B that does not transmit transmission data when it is determined that the terminal device is not located in a delivery destination area. The acquisition terminal device further includes:
The holding area information B and the position information B indicating the area holding the transmission data are acquired from the storage device, and the holding area and the position of the terminal device are compared to determine whether the terminal device is located in the holding area. Holding area determination unit B for determination using a processing device;
When the holding area determining unit B determines that the terminal device is located in the holding area, the transmission data is held in a storage device, and the holding area determining unit B is located in the holding area. The acquisition terminal device according to claim 6, further comprising a transmission data holding unit B that discards the transmission data from the storage device when it is determined that the transmission data is not present. An acquisition terminal that receives transmission data including distribution information, transmits the transmission data when the terminal device is located in the distribution destination area, distributes the distribution information to other terminal apparatuses in the distribution destination area, and moves A delivery method of the device,
Receiving processing B that receives the transmission data including the distribution destination area information and the distribution information indicating the area where the receiving unit B distributes the distribution information by using the receiver and stores it in the storage device,
A transmission interval determination process in which the transmission interval determination unit B acquires transmission interval information B indicating the interval at which the terminal device transmits transmission data from the storage device and determines whether or not the transmission interval of the terminal device has elapsed using the central processing unit. Do B,
When the position acquisition unit B determines that the transmission interval determination unit B has passed the transmission interval, the position acquisition unit B acquires the position information B of the terminal device from the positioning device and stores it in the storage device,
When the delivery destination area determination unit B determines that the transmission interval determination unit B has passed the transmission interval, the transmission destination area and the position information B are acquired from the storage device, and the delivery destination area and the position of the terminal device are compared. And performing a delivery destination area determination process B for determining whether the terminal device is located within the delivery destination area using the central processing unit,
When the transmission unit B determines that the distribution destination area determination unit B determines that its own terminal device is located within the distribution destination area, the transmission unit B acquires transmission data from a storage device and transmits it using a transmitter to determine the distribution destination area. A distribution method for an acquisition terminal device, characterized in that when the part B determines that the terminal device is not located within the distribution destination area, a transmission process B that does not transmit transmission data is performed.   9. A distribution program for an acquisition terminal device that causes a computer to execute the distribution method for the acquisition terminal device according to claim 8. A distribution terminal device that transmits transmission data including distribution information, and an acquisition terminal device that transmits the transmission data and moves when the transmission data is received and is located in the distribution destination area. A distribution system that distributes distribution information to an acquisition terminal device located in a distribution area,
The distribution terminal device
When the acquisition terminal device is located within the area, the distribution area information and the distribution information indicating the area for transmitting the transmission data from the acquisition terminal apparatus are acquired from the storage device, and the distribution information and the distribution area information are obtained. A transmission data generation unit A that generates transmission data including a central processing unit and stores it in a storage device;
A transmission unit A that acquires transmission data from a storage device and transmits the transmission data using a transmitter;
The acquisition terminal device
A receiving unit B that receives outgoing data transmitted by the distribution terminal device using a receiver and stores the received data in a storage device;
A transmission interval determination unit B that obtains transmission interval information B indicating an interval at which the terminal device transmits transmission data from the storage device and determines whether or not the transmission interval of the terminal device has elapsed using a central processing unit;
A position acquisition unit B that acquires the position information B of the terminal device from the positioning device and stores it in the storage device when the transmission interval determination unit B determines that the transmission interval has passed;
When the transmission interval determination unit B determines that the transmission interval has passed, the transmission data and the position information B are acquired from the storage device, the distribution destination area is compared with the position of the terminal device, and the terminal device distributes the distribution destination. A delivery destination area determination unit B that determines whether it is located in the area using a central processing unit;
When the delivery destination area determination unit B determines that the terminal device is located in the delivery destination area, the transmission destination data is acquired from a storage device and transmitted using a transmitter, and the delivery destination area determination unit B A distribution system comprising: a transmission unit B that does not transmit transmission data when it is determined that the terminal device is not located in the distribution destination area. A distribution terminal device that transmits transmission data including distribution information, and an acquisition terminal device that transmits the transmission data and moves when the transmission data is received and is located in the distribution destination area. A distribution method of a distribution system that distributes distribution information to an acquisition terminal device located in a distribution area,
The distribution terminal device
The transmission data generation unit A acquires the distribution destination area information and the distribution information indicating the area for transmitting the transmission data from the acquisition terminal apparatus when the acquisition terminal device is located in the area, and distributes the distribution information. And transmission data generation processing A for generating transmission data including distribution destination area information using a central processing unit and storing it in a storage device,
The transmission unit A performs transmission processing A in which transmission data is acquired from a storage device and transmitted using a transmitter.
The acquisition terminal device
A receiving unit B that receives the outgoing data transmitted by the distribution terminal device using a receiver and stores the outgoing data in the storage device;
A transmission interval determination process B is performed to determine transmission interval information B indicating an interval at which the own terminal device transmits transmission data from the storage device and determine whether or not the transmission interval of the own terminal device has elapsed using a central processing unit,
When the position acquisition unit B determines that the transmission interval determination unit B has passed the transmission interval, the position acquisition unit B acquires the position information B of the terminal device from the positioning device and stores it in the storage device,
When the delivery destination area determination unit B determines that the transmission interval determination unit B has passed the transmission interval, the transmission destination area and the position information B are acquired from the storage device, and the delivery destination area and the position of the terminal device are compared. And performing a delivery destination area determination process B for determining whether the terminal device is located within the delivery destination area using the central processing unit,
When the transmission unit B determines that the distribution destination area determination unit B determines that its own terminal device is located within the distribution destination area, the transmission unit B acquires transmission data from a storage device and transmits it using a transmitter to determine the distribution destination area. A delivery method for a delivery system, characterized in that when part B determines that its own terminal device is not located within the delivery destination area, a delivery process B that does not send outgoing data is performed.

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