JP2010020661A - Information delivery system, method, and apparatus for mobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform information delivery from an information providing server to a mobile with efficiency. <P>SOLUTION: An information delivery system includes: an information providing server which has: a probe reception process section which collects probe data showing a moving path of a mobile from the mobile and a transmission process section which answers the presence or absence of delivery information prepared in advance according to the probe data and delivers the delivery information according to a request from the mobile that confirms the presence or absence of the answered delivery information; and the mobile which has: a probe transmission process section which connects to the information providing server and transmits the probe data to the information providing server; and a reception process section which receives the presence or absence of the delivery information from the information providing server, confirms the presence or absence of the received delivery information, requires the delivery information to the information providing server, and outputs the delivery information delivered according to the request. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an information distribution system, method, and information distribution apparatus that distribute various data to a mobile body and provide the data to users of the mobile body.

Patent Document 1 discloses a telematics system that provides various kinds of information for a mobile body using a wireless communication system such as a mobile phone in response to a user request.

JP2007-328518A

In the conventional telematics system, the timing at which the information providing server distributes information is when the user of the mobile body requests. For this reason, it is not possible to determine the timing for distributing information on the information providing server side, and unnecessary information distribution also occurs. Therefore, it is desirable to improve the efficiency of information distribution.

An aspect of the present invention is an information distribution system as described below, and further includes an information distribution method, an information distribution apparatus and a mobile body constituting the system. The information distribution system responds to the probe reception processing unit that collects probe data representing the moving path of the moving body from the moving body, and the presence / absence of distribution information prepared in advance according to the probe data. An information providing server having a transmission processing unit that distributes distribution information in response to a request from the referenced mobile body, a probe transmission processing unit that connects to the information providing server and transmits probe data to the information providing server, and the information providing server A mobile unit having a reception processing unit that receives the presence / absence of distribution information from the server, requests distribution information from the information providing server with reference to the presence / absence of the received distribution information, and outputs the distribution information distributed in response to the request Composed.

  In a desirable aspect of the present invention, the transmission processing unit of the information providing server refers to the distribution history of the distribution information to the mobile body in response to a request from the mobile body, and distributes the distribution information when the distribution information has not been distributed yet. To deliver.

According to the present invention, in combination with probe data transmission, the information providing server distributes the information after the mobile body determines the presence or absence of information distribution in order to avoid duplication of information to be distributed. Information can be distributed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. This embodiment creates probe data that is movement information of a moving body using a position detection device mounted on the moving body, transmits probe data to an information providing server using a wireless communication apparatus mounted on the moving body, The information providing server interprets the probe data and distributes the information to the target mobile body as a response to the probe data reception. The probe data is data specific to a moving body that is transmitted from the moving body, regarding the moving body as a probe. At a site (center) that collects probe data, for example, the collected probe data is analyzed, and traffic information such as traffic jams is provided to a moving object.

  FIG. 1 is a configuration diagram of a mobile information distribution system. As shown in the figure, the mobile information distribution system includes a mobile object 10, an information providing server 20 that distributes information to the mobile object 10, and information for the mobile object to detect its own position. A location information transmitter 30 that transmits from the wireless communication base station 40 that is a connection destination of the wireless communication line by the mobile unit 10, and a network 50 that connects the information providing server 20 and the wireless communication base station 40. The mobile body 10 and the information providing server 20 communicate with each other via the wireless communication base station 40 and the network 50. In general, a plurality of wireless communication base stations 40 are connected to one information providing server 20 via a network 50. The radio communication base station 40 can simultaneously communicate with a plurality of mobile units 10 by multiplex communication such as time division and frequency division.

  The moving body 10 may be, for example, a car navigation system, a PND (Personal Navigation Device), a mobile phone, or a vehicle equipped with these wireless communication devices. The information providing server 20 is a telematics service (“combination of communication technology and information service”. In particular, in Japan, a part of the functions of the Internet and in-vehicle information wireless technology integrated service) providing server and a general ASP (Application Service Provider) server. May be included. The position information transmitter 30 may be a position information transmitter installed in a roadside zone, or may be a GPS (Global Positioning System) artificial satellite or an optical beacon. The wireless communication base station 40 may be a base station (access point) such as a mobile phone, PHS, or wireless LAN. The network 50 may be a mobile phone network or an Internet network.

  Here, the description will be made on the assumption that the mobile device 10 is equipped with the above-described communication device and is connected to the information providing server 20 by wireless communication.

  The moving body 10 includes a position detection device 120 that detects the position of the moving body 10 using a device corresponding to the position information transmitter 30 such as GPS or an optical beacon, an autonomous navigation device such as a vehicle speed pulse or a gyro, a mobile phone or a PHS, A wireless communication device 130 such as a wireless LAN, an output device 140 such as a liquid crystal display or a speaker, a storage device 150 such as a hard disk or flash memory for storing probe data 151, a timer 160, and a central processing unit (CPU) 110 It is installed. The central processing unit (CPU) 110 is connected to the position detection device 120, the wireless communication device 130, the output device 140, the storage device 150, the timer 160, etc., and transmits probe data to the information providing server 20. Or processing information received from.

  The central processing unit 110 creates probe data 151 from the position information of the moving body 10 acquired from the position detection device 120, temporarily stores it in the storage device 150, and provides information using the wireless communication device 130 at a specific timing. The probe transmission processing unit 111 for transmitting the probe data 151 to the server 20 and the information distributed by the information providing server 20 are received using the wireless communication device 130, displayed on the output device 140, and the received information is stored in the storage device 150, and a reception processing unit 112 that accumulates in 150. The storage device 150 also stores history information 155. The history information 155 is reception history information of information distributed from the information providing server 20.

  The information providing server 20 includes a communication device 230 for connection to the network 50, an input device 240 such as a keyboard and a mouse, a storage device 250 such as a hard disk for storing probe data 251 and distribution information 252, a timer 260, a communication A central processing unit (CPU) 210 is connected to the device 230, the input device 240, the storage device 250, and the timer 260, and manages the probe data 251 and the distribution information 252.

  The central processing unit 210 receives the probe data transmitted by the mobile unit 10 using the communication device 230 and compares the probe reception processing unit 211 that accumulates in the storage device 250 with the distribution information profile 253 and the user profile 254. A transmission processing unit 212 that determines the mobile body 10 that satisfies the conditions for providing the distribution information 252 and transmits the distribution information 252 to the mobile body 10 using the communication device 230. The storage device 250 also stores history information 255. The history information 255 is transmission history information of information distributed by the information providing server 20. In the present embodiment, for ease of understanding, a description will be given for one moving body 10, but the history information 255 is stored in the storage device 250 so that it can be processed for each moving body 10.

  FIG. 2 is a diagram illustrating an example of transmission probe data that the mobile body 10 transmits to the information providing server 20. The items of the transmission probe data indicate a user ID 1110 for identifying a user who uses the mobile object 10, a block (1 to n: n is an integer of 1 or more) 1112 indicating the position of the mobile object 10, and the number n of the blocks 1112. The number of blocks is 1111. One block 1112 representing the position on the path traveled by the mobile object 10 is obtained when the latitude 1113 measured by the position detection device 120, the longitude 1114 measured by the position detection device 120, and the latitude 1113 and longitude 1114 are measured. It consists of a time 1115 acquired from the timer 160. Therefore, when the contents of each block 1112 are traced, the moving path of the moving body 10 is known, and the latitude 1113 and longitude 1114 of the block 1112 whose time 1115 value is the latest time indicate the current position of the moving body 10. Strictly speaking, since the probe data is created at predetermined time intervals, the position indicated by the latest time block 1112 cannot be said to be the current position, but since the moving body 10 is in the vicinity, Good.

  The item of the probe data 151 stored in the storage device 150 of the mobile body 10 is an item extracted from the block 1112 of the transmission probe data shown in FIG. Further, the item of the probe data 251 stored in the storage device 250 of the information providing server 20 corresponds to the item of the block 1112 of the transmission probe data shown in FIG. 2 and the user ID 1110 for identifying the user who uses the mobile object 10. It is attached.

  FIG. 3 is a diagram illustrating an example of transmission probe response data in which the information providing server 20 responds to probe data transmission of the moving body 10. The items of the transmission probe response data include the reception result 2110 indicating the result of receiving the transmission probe data transmitted by the mobile unit 10 (normal reception / error reception), and the characteristics of the information distributed to the mobile unit 10 by the information providing server 20. The number of blocks 2111 to be represented (1 to n: n is an integer greater than or equal to 1) 2112 and the number n of blocks 2112 are shown. A block 2112 representing the characteristics of the distribution information 252 distributed to the mobile body 10 by the information providing server 20 includes a distribution information ID 2113 for identifying the distribution information, and an end time 2114 indicating the time at which the distribution information distribution ends (the information providing server 20 The distribution service end time), and a size 2115 representing the data size of the distribution information.

  FIG. 4 is a diagram illustrating an example of distribution information request data for requesting distribution information to the information providing server 20 based on the transmission probe response data illustrated in FIG. 3 received by the mobile unit 10. The items of the distribution information request data include a user ID 1120 for identifying a user who uses the mobile object 10, a latitude 1121 measured by the position detection device 120, a longitude 1122 measured by the position detection device 120, and a distribution information ID requested by the mobile object 10. (1 to n: n is an integer greater than or equal to 1) 1124 and the number of types of information 1123 indicating the number n of types of the distribution information ID 1124.

  FIG. 5 is a diagram illustrating an example of distribution information request response data in which the information providing server 20 responds to a distribution information request from the mobile body 10. The items of the distribution information request response data include a reception result 2120 indicating a result of receiving the distribution information request data transmitted by the mobile body 10 (normal reception / error reception), and distribution information distributed to the mobile body 10 by the information providing server 20. The number of blocks 2121 indicates the number n of the blocks 2122 (1 to n: n is an integer of 1 or more) 2122 and the number 2122 of blocks 2122. A block 2122 representing distribution information 252 distributed to the mobile unit 10 by the information providing server 20 includes a distribution information profile 2123 and a distribution information main body 2124.

  FIG. 6 is a diagram illustrating an example of the distribution information profile 253 configured as the distribution information profile 2123 of the block 2122 representing the distribution information 252. The items of the distribution information profile 253 are a distribution information ID 2530 for identifying distribution information, a storage location (for example, URL) 2531 of the distribution information 252 main body, and a target area (for example, an area defined by JISX0410) representing an area for distributing the distribution information. Mesh code) 2532, start time 2533 representing the time at which distribution information distribution is started, end time 2534 representing the time at which distribution information distribution ends, size 2535 representing the data size of the distribution information body, and characteristics of distribution information A type 2536 indicating a classification. The target area 2532 may be a set of mesh codes or polygon data connecting points indicated by three or more latitudes and longitudes. The start time 2533 and the end time 2534 are times that represent the start and end of the distribution service, and the service time is represented by both times. Therefore, if the mobile 10 distribution information request data is transmitted within this service time, the information specified by the distribution information profile 253 can be received from the information providing server 20.

  As shown in the distribution information profile 253, the distribution information 252 is not information generated based on the analysis of the collected probe data, but is information such as news or publicity / advertisement information related to a region prepared in the information providing server 20 in advance. The information providing server 20 uses the probe data to determine the distribution timing of the distribution information 252. In other words, the information providing server 20 uses the probe data in order to recognize the mobile 10 existing in the service area of the distribution information 252.

  FIG. 7 is a diagram illustrating an example of the user profile 254. The items of the user profile 254 include a user ID 2540 for identifying a user who uses the mobile object 10, a list 2542 of types of distribution information that the user desires to distribute from the information providing server 20, and the number n of types of distribution information 2542. The number of types shown is 2541.

  2 to 7, the user ID, the number of blocks, the type, and the number of types of each data will be supplementarily described. The user ID has been described on the premise that a plurality of users share the mobile body 10. However, when one user uses the user ID or when the user profile 254 is the same even if there are multiple users, the user ID is the mobile body. ID (identifier) for identifying 10 may be used. When a plurality of users sharing the mobile object 10 have different user profiles 254, when the user uses the mobile object 10, the user can be specified from an input device (not shown). The number of blocks, the type, and the number of types of each data have been described as n. This is simply the same notation and does not mean that the value of n is the same for each piece of data.

  FIG. 8 shows the processing (probe transmission processing unit 111) of the central processing unit (CPU) 110 mounted on the mobile body 10 and the processing (probe reception processing unit 211) of the central processing unit (CPU) 210 mounted on the information providing server 20. The transmission processing unit 212) is a flowchart for processing the probe data. The probe transmission processing unit 111 is activated by a timer 160 mounted on the moving body 10 and starts processing. The activation by the timer may be periodic, or may be variable so that the moving distance of the moving body 10 becomes substantially constant.

  In advance (offline from the processing of the probe transmission processing unit 111), the user using the mobile 10 selects the type of distribution information desired to be distributed from the information providing server 20 according to the user's preference, and sets the user profile 254. Create and register in the information providing server 20. The registration method may be registration by Web, or the operator of the information providing server 20 may register the user profile 254 received by postcard, telephone, or mail using the input device 240. Alternatively, the information providing server 20 may analyze the user's service usage record and create the user profile 254. The information providing server 20 stores the registered user profile 254 in the storage device 250 (S8200).

  Further, the distributor who distributes information to the user creates the distribution information 252 main body and the distribution information profile 253, and registers the created distribution information 252 main body and the distribution information profile 253 in the information providing server 20. The registration method of the distribution information 252 and the distribution information profile 253 may be registration by Web, or the operator of the information providing server 20 inputs the distribution information 252 or the distribution information profile 253 received by postcard, telephone, or mail. 240 may be used for registration. Alternatively, the creator of the distribution information 252 main body and the distribution information profile 253 is different, and the distributor creates the distribution information profile 253 from the distribution information 252 created and registered by a person other than the distributor. It may be registered in the server 20. The information providing server 20 stores the registered distribution information 252 main body and the distribution information profile 253 in the storage device 250 (S8205). The distribution information 252 main body only needs to be able to be recognized by the information providing server 20 without being stored in the information providing server 20.

  The probe transmission processing unit 111 of the mobile object 10 measures the latitude and longitude using the position detection device 120, for example, every second, acquires the time when the latitude and longitude are measured using the timer 160, and the latitude The probe data 151 including the longitude and the time is created and stored in the storage device 150 (S8100). Here, the interval for creating the probe data 151 is 1 second, but it may be 0.5 seconds or 2 seconds, for example. Further, as described above, the interval may be variable according to the moving speed.

  The probe transmission processing unit 111 of the mobile object 10 acquires the probe data 151 accumulated in the storage device 150, for example, every 5 minutes, and the acquired probe data 151 includes a block number 1111 indicating the number of probe data 151, and a user ID 1110 is added, and the transmission probe data shown in FIG. 2 is created and transmitted to the information providing server 20 using the wireless communication device 130 (S8105). Here, the transmission interval of the transmission probe data is 5 minutes, but it may be 1 minute or 10 minutes, for example. If the creation interval of the probe data 151 is 1 second and the transmission interval of the transmission probe data is 5 minutes, the value of the number of blocks 1111 is 300. After the transmission probe data is transmitted, the probe transmission processing unit 111 continues to create the probe data 151 every second and accumulate the probe data 151 in the storage device 150. If there is no response from the information providing server 20 even after 30 seconds (timeout time) has passed since the transmission probe data was transmitted, the probe transmission processing unit 111 again stores the probe data 151 stored in the storage device 150 one minute after transmission of the transmission probe data. 2 is generated, and the transmission probe data shown in FIG. 2 is created and transmitted to the information providing server 20. The probe transmission processing unit 111 creates transmission probe data every minute until transmission of transmission probe data is successful, and attempts transmission to the information providing server 20. Although the same probe data may be retransmitted, the probe data 151 is updated over time, so it is desirable to newly create transmission probe data. When the number of probe data 151 accumulated in the storage device 150 reaches a predetermined number (for example, 3600 for one hour), the meaning of old probe data is lost, and in order to prevent the storage area from overflowing, The transmission processing unit 111 erases the oldest probe data in the probe data 151 stored in the storage device 150 before storing the probe data 151 in the storage device 150 next time.

  The probe reception processing unit 211 of the information providing server 20 receives the transmission probe data shown in FIG. 2 from the mobile unit 10 and detects an error in the transmission probe data from an error detection code such as a checksum attached to the transmission probe data. Determine if there is any. If there is no error in the transmission probe data, the probe reception processing unit 211 accumulates the transmission probe data as the probe data 251 in the storage device 250, and then executes transmission processing (S8210). If there is an error in the transmission probe data, the probe reception processing unit 211 sets the reception result 2110 of the transmission probe response data shown in FIG. 3 as an error and sets the number of blocks 2111 to zero without accumulating in the storage device 250. The mobile probe 10 that has transmitted the transmission probe data responds with transmission probe response data.

  The transmission processing unit 212 of the information providing server 20 sets the distribution information ID of the distribution information that meets the conditions from the distribution information profile 253 stored in the storage device 250 for the transmission probe data received from the mobile object 10. Search (S8215). As a result of searching for the distribution information ID, if there is one or more distribution information ID, the process proceeds to S8220. If the distribution information ID is 0, the transmission probe response data reception result 2110 shown in FIG. 3 is set to normal, the block number 2111 is set to zero, and the process advances to S8230.

  In the distribution information ID search method, first, a distribution in a distribution service in which a start time 2533 is past from the present time and an end time 2534 is future from the present time from among the distribution information profiles 253 stored in the storage device 250. Extract information profiles. Next, from the user profile 254 stored in the storage device 250, a user profile type 2542 whose user ID 2540 matches the user ID 1110 of the transmission probe data shown in FIG. The distribution information profile whose type 2536 matches the type 2542 of the user profile is extracted. Next, a distribution information profile including the latitude 1113 and longitude 1114 of the block 1112 having the latest time 1115 of the transmission probe data shown in FIG. 2 is extracted from the previously extracted distribution information profile. Finally, the distribution information ID 2530 of the previously extracted distribution information profile is acquired.

  Here, as a search method for the distribution information ID, the distribution information profile whose start time 2533 of the distribution information profile 253 shown in FIG. 6 is past from the current time is extracted. However, the start time 2533 is within 5 minutes from the current time, for example. The distribution information profile may be extracted. Further, here, as a search method of the distribution information ID, the latitude 1113 and the longitude of the block 1112 having the latest time 1115 of the transmission probe data in the target area 2532 shown in FIG. 2 from the distribution information profile shown in FIG. Although the distribution information profile including 1114 is extracted, a distribution information profile in which the target area 2532 is within a circle having a radius of 4 km centered on the latitude 1113 and the longitude 1114 of the mobile body 10 may be extracted, for example.

  The transmission processing unit 212 of the information providing server 20 extracts the history information of the corresponding user ID from the history information 255 stored in the storage device 250, and stores the history information from the distribution information ID searched in S8215. The distribution information ID that does not match the distribution information ID is extracted (S8220). This is to prevent the already distributed distribution information from being transmitted multiple times. Thereby, the amount of information communicated via the network 50 and the radio communication base station 40 can be suppressed. As a result of extracting the distribution information ID, if there is one or more distribution information ID, the process proceeds to S8225. If the distribution information ID is 0, the transmission probe response data reception result 2110 shown in FIG. 3 is set to normal, the block number 2111 is set to zero, and the process advances to S8230.

  The transmission processing unit 212 of the information providing server 20 indicates that the transmission probe response data reception result 2110 shown in FIG. 3 is normal, the number of blocks 2111 is the number of distribution information IDs extracted in S8220, and the block 2112 is distribution information extracted in S8220. The end time 2534 and the size 2535 of the distribution information profile 253 corresponding to the ID and the distribution information ID are set (S8225). In consideration of the communication load, the number of blocks 2111 added to the transmission probe response data shown in FIG. 3 is limited. When the number of blocks 2111 exceeds 100, for example, 100 cases whose end time 2114 is close to the current time are selected. Create transmit probe response data.

  The transmission processing unit 212 of the information providing server 20 responds to the moving body 10 that has transmitted the transmission probe data with the generated transmission probe response data (S8230).

  The probe transmission processing unit 111 of the mobile body 10 receives the transmission probe response data shown in FIG. 3 from the information providing server 20 and confirms whether the reception result 2110 of the transmission probe response data is normal or an error. When the reception result 2110 is normal, the probe transmission processing unit 111 deletes the probe data 151 stored in the storage device 150 corresponding to the transmission probe data transmitted to the information providing server 20 (S8110). When the reception result 2110 is an error, the probe transmission processing unit 111 reads the probe data 151 accumulated in the storage device 150 again after one minute, creates the transmission probe data shown in FIG. 2, and transmits it to the information providing server 20. . The probe transmission processing unit 111 creates transmission probe data every minute until transmission of transmission probe data is successful, and attempts transmission to the information providing server 20. When the number of probe data 151 stored in the storage device 150 reaches 3600, the probe transmission processing unit 111 stores the probe data 151 stored in the storage device 150 before storing the probe data 151 in the storage device 150 next time. Erase the oldest probe data.

  The probe transmission processing unit 111 of the mobile 10 confirms whether the number of blocks 2111 of the transmission probe response data shown in FIG. 3 received from the information providing server 20 is zero or 1 (S8115). When the number of blocks 2111 is zero, the probe transmission processing unit 111 returns to the processing of S8100. When the number of blocks 2111 is 1 or more, the probe transmission processing unit 111 proceeds to S8120.

  The probe transmission processing unit 111 of the mobile body 10 executes reception processing when the number of blocks 2111 of the transmission probe response data shown in FIG. 3 which is a response of the information providing server 20 to the transmission probe data transmitted in S8105 is 1 or more. Then, the process returns to S8100 (S8120). In S8105, if the reception processing is not completed even after 5 minutes (timeout time) have elapsed since the probe transmission processing unit 111 first transmitted the probe data 151 to the information providing server 20, the probe transmission processing unit 111 is forced to The reception process ends.

  FIG. 9 shows the processing (reception processing unit 112) of the central processing unit (CPU) 110 mounted on the mobile body 10 and the processing (transmission processing unit 212) of the central processing unit (CPU) 210 mounted on the information providing server 20. It is a flowchart which processes delivery information.

  As a premise, the number 2111 of blocks of the transmission probe response data shown in FIG. 3 received from the information providing server 20 is 1 or more (S9000).

  The reception processing unit 112 of the mobile unit 10 uses the distribution information ID of the transmission probe response data shown in FIG. 3 received from the information providing server 20 as the distribution information ID of the history information 155 stored in the storage device 150. The distribution information ID that does not match is extracted (S9100). As a result of extracting the distribution information ID, if there is one or more distribution information ID, the process proceeds to S9105. As a result of extracting the distribution information ID, there are no distribution information IDs, that is, the mobile 10 has received all the distribution information corresponding to the distribution information ID of the transmission probe response data normally and accumulated as history information 155. If the information providing server 20 cannot confirm the reception of the distribution information because the transmission of S9125, which will be described later, is affected by communication interruption or the like, the process proceeds to S9125 if the distribution result is not accumulated as the history information 255.

  As a result of extracting the distribution information ID in S9100, if there is one or more distribution information IDs, the reception processing unit 112 of the mobile unit 10 generates the distribution information request data shown in FIG. Is used to measure the latitude and longitude, set to latitude 1121 and longitude 1122, respectively, the number of distribution information IDs extracted in S9100 is set to the number of information types 1123, and the distribution information ID extracted in S9100 is set to distribution information ID 1124. The user ID 1120 is set, and the distribution information request data shown in FIG. 4 is transmitted to the information providing server 20 (S9105). If there is no response from the information providing server 20 even after 30 seconds (timeout time) has passed since transmission of the distribution information request data, the reception processing unit 112 ends.

  Also, the reception processing unit 112 of the mobile unit 10 may change the time shown in FIG. 4 when the end time 2114 of the transmission probe response data received from the information providing server 20 shown in FIG. The corresponding distribution information ID may be deleted from the distribution information request data shown.

  Further, the reception processing unit 112 of the mobile unit 10 receives the distribution information shown in FIG. 4 when the size 2115 of the block 2112 having the transmission probe response data shown in FIG. 3 received from the information providing server 20 is 1 MB or more, for example. The corresponding distribution information ID is deleted from the request data, and after the distribution information request data is transmitted, the latitude and longitude are measured again using the position detecting device 120, and the distribution information shown in FIG. The request data may be created again and transmitted to the information providing server 20. This is because when there are multiple types of distribution information and large distribution information is included in the distribution information, the distribution information is distributed in multiple times so as not to increase in size. is there.

  The transmission processing unit 212 of the information providing server 20 receives the distribution information request data shown in FIG. 4 from the mobile body 10 and distributes the distribution information request data from an error detection code such as a checksum attached to the distribution information request data. It is determined whether or not there is an error. If there is no error in the distribution information request data, the process proceeds to S9205 (S9200). When there is an error in the distribution information request data, the transmission processing unit 212 sets the distribution information request response data reception result 2120 shown in FIG. 5 as an error, sets the number of blocks 2121 to zero, and transmits the distribution information request data. It responds to the mobile unit 10 with distribution information request response data.

  Whether the transmission processing unit 212 of the information providing server 20 conforms to the conditions of the distribution information profile 253 stored in the storage device 250 for the distribution information ID in the distribution information request data received from the mobile body 10. Check again (S9205). As a result of confirming the distribution information ID again, if there is one or more distribution information IDs that meet the conditions, the process proceeds to S9210. If the distribution information ID that meets the condition is 0, the distribution information request response data reception result 2120 shown in FIG. 5 is set to normal, the number of blocks 2121 is set to zero, and the process proceeds to S9212.

  A method for reconfirming whether the distribution information ID in the distribution information request data conforms to the conditions of the distribution information profile 253 is as follows. First, the distribution information profile 253 stored in the storage device 250 can be distributed. A distribution information profile matching the information ID is extracted. Next, it is confirmed whether or not the end time 2534 of the previously extracted distribution information profile is older than the present time as time elapses. If the end time 2534 is past from the present time, the corresponding distribution information ID is deleted. Next, it is confirmed whether the target area 2532 of the distribution information profile extracted earlier does not include the latitude 1121 and longitude 1122 of the distribution information request data shown in FIG. 4 as time elapses. When the target area 2532 does not include the latitude 1121 and the longitude 1122, the corresponding distribution information ID is deleted.

  Here, as a method for reconfirming whether the distribution information ID in the distribution information request data conforms to the conditions of the distribution information profile 253, the target area 2532 is selected from the distribution information profile shown in FIG. Although it has been confirmed whether or not the latitude 1121 and longitude 1122 of the distribution information request data shown in FIG. 4 are included, the target area 2532 is within a circle having a radius of 4 km, for example, centered on the latitude 1121 and longitude 1122 of the mobile body 10. If it is not in the circle, the corresponding distribution information ID may be deleted.

  The transmission processing unit 212 of the information providing server 20 is normal in the reception result 2120 of the distribution information request response data shown in FIG. 5, the number of distribution information IDs remaining in S9205 in the block number 2121, and the distribution remaining in S9205 in the block 2122 The distribution information body 2123 and the distribution information profile 2124 stored in the storage location 2531 of the distribution information profile 253 corresponding to the information ID are set (S9210). In consideration of communication load, the number of blocks 2121 added to the distribution information request response data shown in FIG. 5 is limited, and when the number of blocks 2121 exceeds, for example, 100, the end time 2534 of the distribution information profile 253 is close to the current time. Select 100 records and create distribution information request response data.

  The transmission processing unit 212 of the information providing server 20 responds to the mobile 10 that has transmitted the distribution information request data with the distribution information request response data created in the above process (S9212).

  The reception processing unit 112 of the mobile body 10 receives the distribution information request response data shown in FIG. 5 from the information providing server 20 and confirms whether the reception result 2120 of the distribution information request response data is normal or an error. . When the reception result 2120 is normal, it is confirmed whether the number of blocks 2121 of the distribution information request response data shown in FIG. 5 received from the information providing server 20 is zero or 1 (S9110). If the number of blocks 2121 is zero, the reception processing unit 112 ends. When the number of blocks 2121 is 1 or more, the reception processing unit 112 proceeds to S9115. If the reception result 2120 of the distribution information request response data shown in FIG. 5 is an error, the reception processing unit 112 ends.

  The reception processing unit 112 of the mobile body 10 matches the condition of the mobile body 10 with respect to the distribution information profile 2123 in the distribution information request response data shown in FIG. 5 received from the information providing server 20. If it is confirmed and matched, the distribution information body 2124 is output using the output device 140 of the mobile unit 10 (S9115). If the state of the moving body 10 does not meet the conditions for the distribution information profile 2123, the reception processing unit 112 waits until the state of the moving body 10 meets the conditions, and if it matches, distributes using the output device 140. The information body 2124 is output. Even if 5 minutes (timeout time) have elapsed since the probe transmission processing unit 111 first transmitted the probe data 151 to the information providing server 20 in S8105 of FIG. 8, the state of the mobile 10 with respect to the distribution information profile 2123 Does not meet the conditions, the reception processing unit 112 ends without outputting the distribution information body 2124.

  After outputting the distribution information body 2124 in the distribution information request response data shown in FIG. 5 received from the information providing server 20, the reception processing unit 112 of the mobile body 10 distributes the distribution information corresponding to the output distribution information body 2124. The ID is acquired from the distribution information profile 2123 and stored as history information 155 in the storage device 150 (S9120).

  The reception processing unit 112 of the mobile body 10 transmits the distribution information ID and the user ID accumulated in the storage device 150 as the history information 155 to the information providing server 20 (S9125).

  The transmission processing unit 212 of the information providing server 20 receives the user ID and the distribution information ID from the mobile body 10, and receives the user ID and the distribution from an error detection code such as a checksum attached to the user ID and the distribution information ID. It is determined whether there is an error in the information ID. When there is no error in the user ID and the distribution information ID, the transmission processing unit 212 accumulates the user ID and the distribution information ID in the storage device 250 as the history information 255 (S9215).

  The transmission processing unit 212 of the information providing server 20 responds normally when the user ID and distribution information ID received from the mobile unit 10 are normal, and responds with an error when there is an error (S9220).

  The reception processing unit 112 of the mobile body 10 receives a response to the transmission of the user ID and the distribution information ID from the information providing server, and ends the process (S9130).

  According to the embodiment described above, in combination with probe data transmission, the information providing server distributes information after the mobile body determines whether or not information distribution is necessary in order to avoid duplication of information to be distributed. It can support efficient information distribution from the server side.

It is a block diagram of the information delivery system for moving bodies. It is a figure which shows an example of transmission probe data. It is a figure which shows an example of transmission probe response data. It is a figure which shows an example of delivery information request data. It is a figure which shows an example of delivery information request response data. It is a figure which shows an example of delivery information profile data. It is a figure which shows an example of user profile data. It is a flowchart of a probe transmission process part, a probe reception process part, and a transmission process part. It is a flowchart of a reception process part and a transmission process part.

Explanation of symbols

10: Mobile, 20: Information providing server, 30: Location information transmitter, 40: Wireless communication base station, 50: Network, 110: Central processing unit, 111: Probe transmission processing unit, 112: Reception processing unit, 120: Position detection device, 130: wireless communication device, 140: output device, 150: storage device, 151: probe data, 155: history information, 160: timer, 210: central processing unit, 211: probe reception processing unit, 212: transmission Processing unit, 230: communication device, 240: input device, 250: storage device, 251: probe data, 252: distribution information, 253: distribution information profile, 254: user profile, 255: history information, 260: timer.

Claims (15)

A probe reception processing unit that collects probe data representing a moving path of a moving body from the moving body, and responds to the presence or absence of distribution information prepared in advance according to the probe data, and refers to the presence or absence of the responding distribution information An information providing server having a transmission processing unit that distributes the distribution information in response to a request from the mobile body, and a probe transmission processing unit that connects to the information providing server and transmits the probe data to the information providing server; And receiving the presence / absence of the delivery information from the information providing server, referring to the presence / absence of the received delivery information, requesting the delivery information to the information providing server, and delivering the delivery information in response to the request And a mobile body having a reception processing unit for outputting the information. The transmission processing unit included in the information providing server refers to a distribution history of distribution information to the mobile body in response to the request from the mobile body, and distributes the distribution information when the distribution information has not been distributed yet. The information distribution system for mobile objects according to claim 1, wherein information is distributed. The reception processing unit of the mobile body refers to a reception history of distribution information from the information providing server according to presence / absence of the distribution information from the information providing server, and has not received the distribution information yet The mobile information distribution system according to claim 2, wherein the distribution information is sometimes requested. The said transmission processing part which the said information provision server has confirms the position of the said mobile body from the said probe data, The information corresponding to the position of the said mobile body is distributed, The object for mobile bodies of Claim 3 characterized by the above-mentioned. Information distribution system. The transmission processing unit included in the information providing server includes, in response data to the probe data, a distribution information ID for identifying the distribution information, an end time of the distribution information distribution service, and a data size of the main body of the distribution information The information distribution system for mobile bodies according to claim 4, characterized in that The distribution information distributed by the information providing server includes a distribution information profile indicating a condition for outputting the distribution information, and the reception processing unit included in the mobile body receives the information received from the information providing server by the mobile body. 5. The mobile information distribution system according to claim 4, wherein the distribution information is output when a condition of the distribution information profile is satisfied. An information distribution method from an information providing server to a moving body, wherein the information providing server collects probe data representing a moving path of the moving body from the moving body and distributes the prepared data in advance according to the probe data. An information distribution method for a moving body, characterized by responding to the presence or absence of information and distributing the distribution information in response to a request from the moving body. The information providing server refers to a distribution history of distribution information to the mobile body in response to the request from the mobile body, and distributes the distribution information when the distribution information has not yet been distributed. 8. The information delivery method for a mobile object according to claim 7, 9. The information delivery method for a mobile body according to claim 8, wherein the information providing server confirms the position of the mobile body from the probe data and distributes information corresponding to the position of the mobile body. The response data to the probe data includes a distribution information ID for identifying the distribution information, an end time of the distribution information distribution service, and a data size of the main body of the distribution information. Information delivery method for mobiles. The distribution information includes a distribution information profile indicating a condition for outputting the distribution information, and when the mobile body satisfies the conditions of the distribution information profile received from the information providing server, the distribution information The information delivery method for mobile bodies according to claim 9, wherein: A probe reception processing unit that collects probe data representing a moving path of a moving body from the moving body, and responds to the presence or absence of distribution information prepared in advance according to the probe data, and refers to the presence or absence of the responding distribution information An information distribution apparatus for a mobile unit, comprising: a transmission processing unit that distributes the distribution information in response to a request from the mobile unit. The transmission processing unit refers to a distribution history of distribution information to the mobile body in response to the request from the mobile body, and distributes the distribution information when the distribution information has not yet been distributed. 13. The information distribution apparatus for mobile objects according to claim 12, The information transmission apparatus for a mobile object according to claim 13, wherein the transmission processing unit confirms the position of the mobile object from the probe data and distributes information corresponding to the position of the mobile object. The transmission processing unit includes, in response data to the probe data, a distribution information ID for identifying the distribution information, an end time of the distribution information distribution service, and a data size of the main body of the distribution information. The mobile information distribution apparatus according to claim 14.

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