JP2003131972A - Network system managing personal ownership data on the network, data management method, management apparatus, management method, data storage, control method for data storage, information terminal, control method for the information terminal and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage personal data over a network not to cause transmission delays, even if a user moves physically. SOLUTION: Data (possessed stored data), needed by a terminal (or a user), are moved to a data server as close as possible to a destination of the movement of the terminal according to the motion of the terminal. The motion of the possessed stored data is, for example, based on the position information. The terminal, further more, communicates data to the data server which is close to the destination of the motion. The terminal can always quickly receive the possessed stored data and quickly transmit possessed created data. Since the possessed stored data moves among a plurality of the data servers, so that the resources of the data servers are saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network system and data which can manage personal data created by a personal computer, a digital camera or the like on a network and manage personally owned data on the network. The present invention relates to a management method, a management device and a management method, a data storage device and a control method for the data storage device, an information terminal, a control method for the information terminal, and a storage medium. In particular, personal data can be easily accessed even from a destination. A network that manages personal data that can be managed on the network.
System and data management method, management device and management method,
The present invention relates to a data storage device, a data storage device control method, an information terminal, an information terminal control method, and a storage medium.

[0002] More specifically, the present invention relates to a network system and data for managing personally owned data on a network, in which personal data can be managed on the network so that a user or a terminal can always access the shortest route. The present invention relates to a management method, a management device and a management method, a data storage device and a control method for the data storage device, an information terminal, a control method for the information terminal, and a storage medium, and in particular, causes a transmission delay even when a user physically moves. Network system and data management method, management device and management method, data storage device, and control of data storage device capable of managing personal data on the network The present invention relates to a method, an information terminal, a method for controlling the information terminal, and a storage medium.

[0003]

2. Description of the Related Art In recent years, computing technologies such as information processing and information communication have been dramatically improved, and computer systems have become widespread. Furthermore, there is an increasing demand for network computing technology for interconnecting computers. In a network connection environment, collaborative work such as sharing of computer resources and sharing, distribution, distribution, and exchange of information can be smoothly performed.

For example, a user can retrieve personal data edited by a personal computer or other information device or stored by a digital camera on a network at any place he or she likes. , "Ubiquitous network" can be built.

FIG. 29 schematically shows a conventional network configuration example. In this case, the storage location of the personal data of the user of the information terminal 2102 is designated by the specific data server 2101 on the network. In such a case, a router (not shown) is required to obtain personal data.
The data server 2101 is accessed through the shortest route via the above. Where the data server is
Cache servers, data centers and storage
Servers, fetch servers, etc.

However, the information terminal 2102 crosses the area 2103 from the area 2103 to the area 2105.
When moving to the same area, even if the same data server 2101 can be accessed by the route selection function of the router, etc., the original area 21
The problem of transmission delay may occur compared to the case of accessing from 03.

Further, as shown in FIG. 30, there is a service for delivering contents on the Web at high speed. In the example shown in the figure, since one content needs to be delivered at high speed to an unspecified number of terminals, a copy of the content data stored in the data server 2201 is distributed to a plurality of cache servers 2202 to 2204. It is arranged. The layout of the copy here is "cache".
, But may be “fetch”.

In such a case, the content distribution request from the terminal 2206 existing in a certain area 2207 is once sent to the cache server 2202 which can distribute the content to the terminal earliest via the load balancing server 2205. After that, the data is directly exchanged between the terminal 2206 and the cache server 2202.

In the load distribution server 2205, the cache server that can deliver the content earliest is determined based on the load status of the network and the cache servers 2202 to 2204 and the IP address of the terminal. There is a type of routing control that allocates requests.

However, the area 2207 shown in FIG.
Even when moving to 209, the connection with the cache server 2202 is maintained. Therefore, the terminal 220
6 can access the cache server 2202 from the new location by the router by the shortest route, but the transmission delay problem may occur due to the physical distance difference (same as above). That is, it cannot be said that the content can be delivered at high speed.

Further, copies of the same contents are stored in each of the cache servers 2202 to 2204 on the network. If the content is for an unspecified large number of people as described above, it does not cause much problem, but if the personal data is similarly cached, the resources of the cache server are wasted, which is not efficient. Further, the original purpose is to cache contents that are often used by an unspecified number of people, and data that meets the requirements of each individual is not necessarily cached.

Further, Japanese Patent Laid-Open No. 2000-201175 discloses a system for transmitting information in accordance with the situation of the user, especially in a mobile communication environment. According to the information transmission system described in the publication, the rule editing unit of the user terminal creates various rules based on various information input by the user. These rules are once stored in the data management unit and sent to the data management unit via the communication control unit. Then, the user issues various processing requests to the SC server interposed in the network.
The SC server receives various processing requests, and based on various rules stored in the data management unit, acquires position information of the user, processes information according to the device of the transmission destination, media conversion for the information to be transmitted, The information to be transmitted is selected and the information is transmitted.

According to the information transmission system described in the publication, a user can use a personal computer (PC) when he / she is in the office, a mobile phone when he / she is in a certain shop, and the like in advance. Position information corresponding to the information is registered in the server for data transmission. Then, when an instruction for information transmission is received from the user, data is transmitted in a corresponding data format and an optimal transmission path (wireless / wired, optimal transmission speed) from the position information acquired from the terminal. Therefore, PHS (Pers
onal Handyphone System) and GPS (Global Positioni)
It is possible to communicate by using the position information obtained from the ng System).

However, the information transmission system described in the above publication specifies the type of the terminal from the acquired position information and performs data transmission suitable for the type, and there is a transmission delay due to the physical distance between the terminal and the server. I can't solve it.

[0015]

SUMMARY OF THE INVENTION An object of the present invention is to manage personal data created by a personal computer, a digital camera or the like on a network, and a network for managing personal owned data on the network. A system and a data management method, a management device and a management device method, a data storage device and a data storage device control method, an information terminal, an information terminal control method, and a storage medium.

[0016] A further object of the present invention is to manage personal data on the network so that the personal data can be easily accessed from a moving destination, and a network system and a data management method for managing personal data on the network. A management device, a management device method, a data storage device, a data storage device control method, an information terminal, an information terminal control method, and a storage medium are provided.

A further object of the present invention is to manage personal data on a network so that a user or a terminal can always access the shortest route, and a network system and data for managing personal owned data on the network. A management method, a management device and a management device method, a data storage device and a control method for the data storage device, an information terminal, a control method for the information terminal, and a storage medium are provided.

A further object of the present invention is that personal data can be managed on the network so that transmission delay does not occur even when a user physically moves, and personally owned data is managed on the network. There is provided a network system and a data management method, a management device and a management method, a data archiving device and a data archiving device control method, an information terminal, an information terminal control method, and a storage medium.

[0019]

The present invention has been made in consideration of the above problems, and a first aspect thereof is a network system for managing personally owned data on a network. , For storing the personal data of the personal information terminal arranged on the network so as to be in charge of each area obtained by dividing the geographical range in which the personal information terminal can move in the real space into a plurality of areas. Responsible for the storage of the personal data of the personal information terminal based on the plurality of data storage devices, the position information measuring means for measuring the current position information of the personal information terminal, and the position information measured by the position information managing means. A network system for managing personally owned data on a network, comprising:

However, the term "system" as used herein refers to a logical assembly of a plurality of devices (or functional modules that realize a specific function), and each device and functional module have a single housing. It does not matter whether it is in the body or not.

The second aspect of the present invention is to provide a plurality of data storage devices so as to be in charge of respective areas obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A data management method for arranging on a network to manage personally owned data on the network, comprising: a position information measuring step of measuring position information of a personal information terminal at the present location; and a position information managing step. A management step of managing a data storage device which is in charge of storing the proprietary data of the personal information terminal based on the measured position information, and managing the personal proprietary data on the network. It is a data management method.

According to the network system and the data management method for managing the data owned by an individual on the network according to the first and second aspects of the present invention, each of the above-mentioned data storage devices is in the area in charge thereof. The proprietary data transmitted from the personal information terminal is stored, and the proprietary data being stored is transmitted in response to a request from the personal information terminal.

Further, the managing means or step responds to the fact that the personal information terminal has moved between areas based on the position information measured by the position information managing means or step, in response to the movement of the moving destination. The data storage device in charge of the area is notified of the addition of the personal information terminal in charge, and the personal information terminal is notified of the change in the data storage device in charge.

Further, the data storage device responds to the notification of the addition of the personal information terminal to the other data storage device which has been in charge of storing the data owned by the personal information terminal until now. , Requesting the movement of the possessed data of the personal information terminal.

Therefore, in the service network according to each of the first and second aspects of the present invention, the data storage device in which the personal data of the personal information terminal placed on the data storage is closer to the destination due to the movement of the terminal. To move to. For example, the movement of the proprietary data is performed based on the position information of the terminal. Moreover, the information terminal can exchange data with a data storage device having a short distance at various destinations. Therefore, the personal information terminal can transmit / receive the proprietary data to / from the data storage device at high speed.

Further, since the possessed data is moved between the data archiving devices instead of being copied and stored in a plurality of data archiving devices, the resource of the data archiving device can be saved.

Further, on the network, by prefetching the data possessed by the information terminal as the information terminal moves, compared to the case where the data is cached according to the number of accesses, regardless of the number of accesses, Data can be accessed at high speed.

Here, the personal information terminal may transmit or request transmission of the proprietary data before the movement of the proprietary data between the data storage devices in charge of the old and new is completed. In such a case, after receiving the notification of the addition of the personal information terminal, the data storage device may not own the personal information terminal from another data storage device that has been in charge of storing the owned data of the personal information terminal until now. When the personal information terminal requests the transmission of the proprietary data before moving the data, the transmission request may be accepted after the movement of the proprietary data is completed.

Alternatively, the data storage device, after receiving the notification of the addition of the personal information terminal, owns the personal information terminal from another data storage device which has been in charge of storing the own data of the personal information terminal until now. If the personal information terminal requests the transmission of the proprietary data before moving the data, the transmission request may be transferred to the other data storage device. In such a case, the proprietary data requested by the personal information terminal is transmitted without delay from the data storage device in charge thereof.

Alternatively, the management means waits until the transfer of the data owned by the personal information terminal is completed between the data storage devices in charge of old and new as the personal information terminal moves between areas, and then the personal information terminal You may notify an information terminal of the change of the data storage device in charge.

In such a case, as the personal information terminal moves from one area to another, the data archiving apparatus stores the possessed data of the personal information terminal which has been stored up to now in another data archiving apparatus. After moving, when a transmission request for the proprietary data is received from the personal information terminal, the transmission request may be transferred to the other data storage device.

Alternatively, the data storage device may move the personal data stored in the personal information terminal, which has been stored so far, to another data storage device which is newly in charge as the personal information terminal moves between areas. In the meantime, when a transmission request for proprietary data is received from the personal information terminal, an error may be returned to the personal information terminal. In such a case, the personal information terminal can resend the transmission request for the proprietary data to the correct data storage device after receiving the notification of the change of the data storage device in charge.

Further, a third aspect of the present invention is that a plurality of data storage devices are provided so as to take charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A management device or management method for managing data owned by an individual on an arranged network, wherein a data storage device in charge of storing data owned by the personal information terminal is determined based on position information of the personal information terminal. The management device or the management method is characterized by:

The management device or the management method according to the third aspect of the present invention, in response to detecting that the personal information terminal has moved between areas, responds to the data storage device in charge of the destination area. In addition to notifying that the personal information terminal in charge is added, the personal information terminal is notified of the change in the data storage device in charge.

Therefore, on the network, the possessed data of the personal information terminal placed on the data storage is moved to the data storage device near the destination by the movement of the terminal. For example, the movement of the proprietary data is performed based on the position information of the terminal. Moreover, the information terminal can exchange data with a data storage device having a short distance at various destinations. As a result, the personal information terminal can perform high-speed transmission / reception of proprietary data with the data storage device.

The fourth aspect of the present invention is arranged on the network so as to be in charge of each area obtained by dividing the geographical range in which the personal information terminal can move in the real space into a plurality of areas. A data storage device or a method for controlling the data storage device, wherein means or steps for storing the proprietary data transmitted from the personal information terminal in the area in charge,
A data storage device or a control method of the data storage device, which comprises: a unit or a step of transmitting the stored proprietary data in response to a request from the personal information terminal.

Here, the data archiving apparatus or the control method of the data archiving apparatus according to the fourth aspect of the present invention responds to the notification of the addition of the personal information terminal, until now by the personal information terminal of the personal information terminal. It may further comprise means or step for requesting another data storage device that was in charge of storing the proprietary data to move the proprietary data of the personal information terminal.

Therefore, by disposing a plurality of data storage devices on the network, the possessed data of the personal information terminal placed on the data storage can be moved to a data storage device closer to the destination by moving the terminal. It has become. For example, the movement of the proprietary data is performed based on the position information of the terminal. Moreover, the information terminal can exchange data with a data storage device having a short distance at various destinations. As a result, the personal information terminal can perform high-speed transmission / reception of proprietary data with the data storage device.

The data archiving apparatus or the control method of the data archiving apparatus according to the fourth aspect of the present invention is in charge of archiving the possessed data of the personal information terminal after receiving the notification of the addition of the personal information terminal. If the personal information terminal requests the transmission of the proprietary data before moving the proprietary data of the personal information terminal from the other data storage device, the request for the transmission will be completed after the migration of the proprietary data is completed. Means or steps for responding may be further provided.

Alternatively, after receiving the notification of the addition of the personal information terminal, before moving the personal data of the personal information terminal from another data storage device which has been in charge of storing the personal data of the personal information terminal until now. Further, when the personal information terminal is requested to transmit the proprietary data, the personal information terminal may further include means or step for transferring the transmission request to the other data storage device.

Alternatively, as the personal information terminal moves between areas, the personal information stored in the personal information terminal, which has been stored so far, is moved to another data storage device that is newly in charge, and then the personal information is stored. When a transmission request for proprietary data is received from the terminal, a unit or step for transferring the transmission request to the other data storage device may be further provided.

Alternatively, as the personal information terminal moves between the areas, the personal data stored in the personal information terminal until it is moved to another data storage device newly in charge of the personal information terminal It may further include means or step for returning an error to the personal information terminal when receiving a request for transmitting the proprietary data from the information terminal.

Further, a fifth aspect of the present invention is a network in which a data storage device in charge is arranged for each area obtained by dividing a geographical range in which an information terminal can move in a real space into a plurality of areas. A method for controlling an information terminal or an information terminal operating on the above, comprising: a proprietary data processing means or step for processing or editing proprietary data; and a means or step for transmitting the proprietary data to a data storage device in charge of the area where the data is currently located. , Means or steps for requesting the data storage device in charge of the area where the user is currently to transmit the proprietary data,
An information terminal or a method of controlling an information terminal, comprising:

Here, in response to the notification of the change of the data storage device in charge as the information terminal moves between areas, the transmission destination of the proprietary data and the proprietary data transmission request is changed. It may further include means or steps.

The sixth aspect of the present invention is to provide a plurality of data storage devices so as to be in charge of each area obtained by dividing the geographical range in which the personal information terminal can move in the real space into a plurality of areas. A storage medium that physically stores computer software in a computer-readable format, which is written so as to execute a process for managing personally owned data on the network by placing the computer software on the network. Then, the computer software stores the proprietary data of the personal information terminal based on the location information measuring step of measuring the location information of the personal information terminal at present and the location information measured by the location information managing step. And a management step of managing a data storage device in charge of the storage medium.

The seventh aspect of the present invention is arranged on a network so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. Control the data storage device
A computer written to run on a system
A storage medium that physically stores software in a computer-readable format, the computer software storing proprietary data transmitted from a personal information terminal in each area, and responding to a request from the personal information terminal. And transmitting the stored proprietary data.

In the eighth aspect of the present invention, a data storage device in charge is arranged for each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A method of controlling an information terminal operating on a network, comprising: a proprietary data processing step of processing or editing proprietary data; a step of transmitting the proprietary data to a data storage device in charge of the area where the user currently resides; And a step of requesting the data archiving apparatus to transmit the proprietary data to the storage medium.

The storage medium according to each of the sixth to eighth aspects of the present invention provides computer software in a computer-readable format to a general-purpose computer system capable of executing various program codes, for example. It is a medium. Such a medium is, for example, a CD (Compact
Disc), FD (Floppy Disc), MO (Magneto-Optical)
Disc) is a removable and portable storage medium. The storage medium mentioned here is not only packaged media,
It may be realized by a semiconductor memory, a magnetic disk, or the like in which the program is temporarily or permanently stored. Alternatively, it is technically possible to provide computer software to a specific computer system via a transmission medium such as a network (whether the network is wireless or wired).

Such a program storage medium defines a structural or functional cooperative relationship between the computer software and the storage medium for realizing a predetermined computer software function on a computer system. It is a thing. In other words, by installing the predetermined computer software in the computer system via the program storage medium according to each of the sixth to eighth aspects of the present invention, a cooperative action is exerted on the computer system. A data management method for managing personally owned data on a network according to the second aspect of the present invention; a data archiving apparatus and a data archiving apparatus control method according to the fourth aspect of the present invention; and a second aspect of the present invention. It is possible to obtain the same effect as each of the information terminal and the information terminal control method according to the fifth aspect.

Still other objects, features and advantages of the present invention are as follows.
It will be clarified by a more detailed description based on embodiments of the present invention described below and the accompanying drawings.

[0051]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 schematically shows the overall configuration of a network system to which the present invention is applied. As will be described later, under the illustrated network system, personal data owned by the user on the network is stored in a cache server (data center or storage・
Servers, fetch servers, etc. In the following, it will be referred to as a "data server"). As a result, the user terminal can transmit / receive personal data to / from a data server having a short physical distance, and is free from the problem of transmission delay due to the physical distance.

In the example shown in FIG. 1, a service network 118 that provides a personal data storage service near a user is a management server 101 that manages the entire network 118, and an information terminal that each user owns. The location management server 102 that manages the location information of the above, and a plurality of data servers 103 to 105 that store the personal data of each user according to an instruction from the management server 101.

The service network 118 includes a plurality of base stations (access points) 106 to 11 serving as connection points for the information terminals of the users to the network 118.
1 is prepared. Each of the base stations 106 to 111 has an area (cell) in which wireless communication is possible. In the illustrated example, the base station 108 can wirelessly communicate with an information terminal (video camera) 112 in its own communication cell, and the base station 111 has an information terminal (PD) in its own communication cell.
A) Wireless communication with 114 is possible.

Further, the user's information terminal can be connected to the service network 118 not only by wireless communication but also via the public telephone network and other priority networks. In the illustrated example, the information terminal (notebook computer) 113 is connected to the service network 118 via the modem 109.

The information terminal mentioned here basically means a mobile terminal, for example, a mobile phone, a PDA (Pe
rsonal Digital Assistant), digital camera, video camera, portable music player, personal computer (PC), voice input device, and the like. Further, these information terminals are also equipped with a communication interface for wirelessly connecting to the base stations 106 to 111. In order to operate on the service network according to this embodiment, it is assumed that the information terminal has the following functions.

(1) Unique terminal identification information that can be identified from among a plurality of terminals connectable to the service network is assigned. (2) A rewritable storage device (flash memory or hard disk) is provided, and the destination address (for example, IP address) of a data server for exchanging proprietary creation data and proprietary accumulated data is stored. (3) GPS (Global Positioning Syste) for enabling the location management server 102 to know the location of the terminal
It has functions such as m).

The position management server 102 constantly monitors the whereabouts of the information terminal owned by each user, that is, the position information. For example, in the case of PHS, base station identification information (CS-I
The position information of the terminal can be acquired using D).
Further, by mounting the GPS on the information terminal, the position information can be directly obtained from the information terminal. The position management server 102 manages the position of each information terminal in the position management table shown below. In addition, when a single user possesses a plurality of information terminals, the location management server 102 may integrally manage the location information of each information terminal.

[0059]

[Table 1]

Each area is configured by dividing the geographical range in which the information terminal can move in the real space into a plurality of areas. Each data server 103-105 is assigned an area that it supports. In the illustrated example, data server 103 supports area 115, data server 104 supports area 116, and data server 105 supports area 117. The data server in charge of the area stores the proprietary accumulated data of the information terminals existing in the area, receives the proprietary creation data from the terminal, and transmits the proprietary accumulated data to the terminal (described later).

Here, the possessed accumulated data means each data
This is proprietary creation data managed by the servers 103 to 105 for each information terminal (or each user). The proprietary accumulated data and proprietary creation data are program data, text data, image data, moving image data, etc., and can be managed as a computer file. The proprietary data is data processed or created on the information terminal by the user.

The management server 101 is the location management server 10
Upon receiving the notification of the position information of each information terminal from 2, the storage location of the owned and accumulated data on the service network 118 is comprehensively managed. Each data server 103-10
Is instructed by the management server 101 to store the personal data of the users of the information terminals located in the areas 115 to 117 allocated to them. Also, the management server 10
When the movement of the information terminal is detected by the notification of the position information, 1 instructs to move a part or all of the personal data of the user concerned from the information terminal to a nearby data server.

For example, as shown in FIG. 2, when the information terminal 112 (video camera) of a user moves from the area 116 to the area 117, the information terminal 11
2 not only switches the access point for connecting to the service network from the base station 108 to the base station 111, but the management server 101 stores the personal data of the user in the data server 10 which manages the area 116.
The data servers 104 and 105 are instructed to move from No. 4 to the data server 105 that manages the area 117.

Therefore, under the service network shown in FIG. 1, the information terminal of the user receives the stored data with the data server having a short physical distance,
It becomes possible to send proprietary data. The information terminal is
It eliminates the problem of transmission delay due to physical distance.

FIG. 3 schematically shows the functional configuration of the management server 101. As shown in the figure, the management server 1
01 is an input unit 11 and a position information transmission packet analysis unit 1
2 and responsible data server change command packet generator 13
And the terminal addition command packet generator 14 and the output unit 1
5 and a storage unit 16.

The input unit 11 and the output unit 15 are service
It is a functional module that transmits and receives packets via the network 118. When the position information transmission code is described in the header information of the received packet, the input unit 11 sends the packet to the position information transmission packet analysis unit 12 in the subsequent stage.

FIG. 4 schematically shows the data structure of the position information transmission packet. This position information transmission packet is used by the position management server 102 to notify the management server 101 of the position information of the information terminal. In the header, header information of a protocol used in communication between the position management server 102 and the management server 101 is written. As the destination address, address information (for example, IP address) for uniquely identifying the destination (management server 101) on the network is written. Following the destination address, a position information transmission code (010) indicating that the packet is a position information transmission packet of the information terminal.
0) is written. Then, the terminal identification information for uniquely identifying the information terminal indicated by the position information and the position measurement information of the information terminal are added. As terminal identification information,
For example, the manufacturing number and telephone number of an information terminal (mobile phone, P
(For HS) is used. When the position of the information terminal is measured by GPS, the position measurement information is north latitude 3
It is represented as latitude / longitude information such as 2 degrees 33 minutes 40 seconds / 145 degrees 40 seconds 33 seconds east longitude.

The storage unit 16 is composed of, for example, a local disk on the management server 101, and stores an area management table, a data server management table, a responsible terminal data / server list table, a terminal identification information-terminal address conversion table, and the like. is doing. The storage unit 16 is a DBMS
Equipped with (Database Management System) function,
Data can be input and output as required. The structures of the area management table, the data server management table, the terminal data / server list table in charge, and the terminal identification information-terminal address conversion table are shown below.

[0069]

[Table 2]

[0070]

[Table 3]

[0071]

[Table 4]

[0072]

[Table 5]

When the position information transmission packet analysis unit 12 receives the position information transmission packet, based on the terminal identification information in the packet, the position information transmission packet-terminal address conversion table and the terminal responsible data server in the storage unit 16 are received. The list table is searched to extract the address A of the data server currently in charge of the relevant information terminal. Further, the position information transmission packet analysis unit 12 searches the area management table and the data server management table in the storage unit 16 and, based on the position measurement information, finds the address B of the data server whose area is in charge. Extract.

If the address A searched based on the terminal identification information and the address B searched based on the position measurement information are different because the information terminal moves between service areas, the position information is different. The transmission packet analysis unit 12 searches the terminal identification information-terminal address conversion table in the storage unit 16 based on the terminal identification information to extract the terminal address C, and the assigned data / server change command packet generation unit 13 The address A, the address B, and the terminal identification information are transmitted, and the terminal address C and the address B are transmitted to the assigned terminal addition command packet generation unit 14.

The data server change command packet generator 13 in charge notifies of the change of the data server that stores the data accumulated and owned and created by the information terminal based on the data received from the position information transmission packet analyzer 12. A responsible data server change command packet is created and transmitted from the output unit 15 to the corresponding information terminal.

FIG. 5 schematically shows the data structure of the assigned data server change command packet. The assigned data server change command packet is used by the management server 101 to notify the information terminal that the data server that is the storage destination of the owned accumulated data or the created data has been changed. In the header, header information of a protocol used in communication between the management server 101 to the base station to the information terminal is written. Address information (for example, IP address, telephone number, etc.) for uniquely identifying the information terminal to be the destination on the network is written in the destination terminal address. Subsequent to the destination terminal address, the assigned data server change instruction code (01
10) is written. Then, the address information of the data server newly in charge of the storage of the proprietary accumulated data and the proprietary creation data of the destination information terminal is added.

The assigned terminal addition command packet generator 14
Based on the data received from the position information transmission packet analysis unit 12, a responsible terminal addition command packet for notifying the data server of a new information terminal to be in charge of the owned accumulated data and owned created data is created. , From the output unit 15 to the corresponding data server.

FIG. 6 schematically shows the data structure of the assigned terminal addition command packet. The management server 101 sends the assigned terminal addition command packet to the data server.
It is used to notify that an information terminal has been added that is in charge of storing owned accumulated data and owned created data. Header information of a protocol used in communication between the management server and the data server is written in the header. The destination address is address information (for example, I address) for uniquely identifying the destination data server on the network.
P address) is written. Subsequent to the destination address, a responsible terminal addition instruction code (0101) indicating that the packet is an assigned terminal addition instruction packet is written. Subsequently, terminal identification information for uniquely identifying the added information terminal and position measurement information of the information terminal are added. As the terminal identification information, for example, a manufacturing number or a telephone number of an information terminal (in the case of a mobile phone or PHS) is used. Next, the former data in charge of storing the accumulated data and the created data of the information terminal until now
Address information for uniquely identifying the server (for example,
IP address) is written.

Although the management server 101 can be designed as a dedicated hardware device, it can be a workstation (WS) or a personal computer (P).
C) etc. on a general computer system
It can also be realized in the form of executing an application.

FIG. 7 shows the data servers 103-105.
2 schematically shows a functional configuration of a device that operates as a device.
As shown in the figure, the data server includes an input unit 21,
Proprietary data transmission packet analysis unit 22, proprietary accumulated data transmission request packet analysis unit 23, proprietary accumulated data transmission packet generation unit 24, assigned terminal addition command packet analysis unit 25, proprietary accumulated data movement request packet generation unit 2
6, an owned accumulated data movement request packet analysis unit 27,
The possessed accumulated data moving packet generation unit 28, the possessed accumulated data moving packet analysis unit 29, the output unit 30, and the storage unit 31.

The input unit 21 and the output unit 30 are service
It is a functional module that transmits and receives packets via the network 118. The input unit 21, based on the instruction code included in the received packet, possession creation data transmission packet analysis unit 22, possession accumulation data transmission request packet analysis unit 23, responsible terminal addition instruction packet analysis unit 25, possession accumulation data movement The packet analysis process is distributed to either the request packet analysis unit 27 or the possessed accumulated data movement packet analysis unit 29.

The storage unit 31 is composed of, for example, a local disk of the data server, and is mainly used for storing the owned and stored data and the owned and created data of each information terminal in the area allocated to the data server. To be done. FIG. 8 schematically shows the data structure in the storage unit 31. As shown in the figure, the ownership accumulation data and the ownership creation data of each information terminal in the area are managed by the terminal identification information that uniquely identifies the corresponding information terminal. The storage unit 31 is a DBMS (Database Management System).
Equipped with functions, data can be input and output as required.

Owned data transmission packet analysis unit 22
Adds the proprietary creation data to the corresponding proprietary accumulated data in the storage unit 31 (see FIG. 8) based on the terminal identification information of the proprietary creation data transmission packet received by the input unit 21.

FIG. 9 schematically shows the data structure of the proprietary creation data transmission packet. The proprietary data transmission packet is used by the information terminal to transmit the data processed or created on the terminal to the data server.
In the header, header information of a protocol used in communication between the information terminal, the base station, and the data server is written. Address information (for example, IP address) for uniquely identifying on the network the data server that is the storage destination of the possession creation data is written in the transmission destination address. Following the destination address, a proprietary creation data transmission code (0001) indicating that the packet is a proprietary creation data transmission packet is written. Subsequently, terminal identification information for uniquely identifying the information terminal that is the transmission source and ownership creation data to be sent are added. As the terminal identification information, for example, a manufacturing number or a telephone number of an information terminal (in the case of a mobile phone or PHS) is used.

Owned accumulated data transmission request packet analysis unit 2
3 is applicable by searching the storage unit 31 (see FIG. 8) based on the terminal identification information and the transmission request possession accumulated data name included in the possession accumulated data transmission request packet received by the input unit 21. Extract the data (file).

FIG. 10 schematically shows the data structure of the proprietary storage data transmission request packet. The proprietary accumulated data transmission request packet is used by the information terminal to request the transfer of its proprietary accumulated data to the data server having jurisdiction over the area. Header information of a protocol used in communication between the terminal, the base station, and the data server is written in the header. The transmission destination address is address information for uniquely identifying on the network the data server that is the accumulation destination of the proprietary accumulated data (for example,
IP address) is written. Following the destination address, a proprietary accumulated data transmission request code (001 indicating that the packet is a proprietary accumulated data transmission request packet).
0) is written. Subsequently, the terminal identification information for uniquely identifying the information terminal serving as the transmission source and the name (file name) of the requested proprietary accumulated data are added. As the terminal identification information, for example, a manufacturing number or a telephone number of an information terminal (in the case of a mobile phone or PHS) is used.

Owned accumulated data transmission packet generator 24
Creates a proprietary accumulated data transmission packet based on the data received from the proprietary accumulated data transmission request packet analysis unit (proprietary accumulated data retrieved from the storage unit 31) and requests it from the output unit 30. Send to the original information terminal.

FIG. 11 schematically shows the data structure of the proprietary accumulated data transmission packet. The proprietary accumulated data transmission packet is used by the data server to transfer the proprietary accumulated data in response to a request from the information terminal within the jurisdiction area. In the header, header information of a protocol used in communication between the data server, the base station, and the information terminal is written. Address information (for example, IP address) for uniquely identifying on the network the data server that is the storage destination of the possession creation data is written in the transmission destination address. Following the destination address, a proprietary accumulated data transmission code (0011) indicating that the packet is a proprietary accumulated data transmission packet is written. Subsequently, the proprietary accumulated data requested to be transmitted is added. The data server can know the terminal identification information of the requesting information terminal from the proprietary accumulated data transmission request packet, but cannot know the terminal address.
For example, the terminal address may be acquired from the header information of the proprietary accumulated data transmission request packet.

The assigned terminal addition command packet analysis unit 25
The in-charge terminal addition command packet received by the input unit 21 is analyzed to obtain the terminal identification information and the address of the old data server in charge, and the possessed accumulated data movement request packet generation unit 2 is acquired.
Output to 6. The assigned terminal addition command packet is a packet used by the management server 101 to instruct the corresponding data server to add the assigned information terminal as the information terminal moves between service areas ( See FIG. 6).

Owned accumulated data movement request packet generator 2
6 creates a proprietary accumulated data movement request packet based on the data passed from the assigned terminal addition command packet analysis unit 25, and transmits it from the output unit 30 to the old assigned data server.

FIG. 12 schematically shows the data structure of the proprietary accumulated data movement request packet. The proprietary accumulated data movement request packet is used by the data server newly in charge of requesting the movement of the proprietary accumulated data to the data server in charge of old as the information terminal moves between service areas. In the header, header information of a protocol used for communication between data servers is written.
Address information (for example, IP address) for uniquely identifying the old data server in charge of the request destination on the network is written in the destination address. Subsequent to the destination address, a proprietary accumulated data migration request code (0101) indicating that the packet is a proprietary cumulative data migration request packet is written. Next, the terminal identification information of the information terminal that is the owner of the requested accumulated data and the address information (for example, to uniquely identify the requesting new data server on the network).
IP address) is added.

Owned accumulated data movement request packet analysis unit 2
7 analyzes the proprietary accumulated data movement request packet received from another data server, searches the storage unit 31 (see FIG. 8) based on the terminal identification information in the packet, and requests it. The possessed accumulated data is taken out and output to the possessed accumulated data moving packet generation unit 28 together with the address of the new data server included in the packet.

FIG. 13 schematically shows the data structure of the proprietary accumulated data moving packet. The proprietary accumulated data moving packet is used to move the corresponding proprietary accumulated data from the data server in charge of the old to the data server in charge of the new as the information terminal moves between service areas. In the header, header information of a protocol used for communication between data servers is written. Address information (for example, an IP address) for uniquely identifying on the network the new data server to be the data transfer destination is written in the transmission destination address. Following the destination address, the proprietary accumulated data movement code (01
10) is written. Subsequently, the terminal identification information of the information terminal which is the owner of the possessed accumulated data to be moved and the possessed accumulated data are added.

Owned accumulated data moving packet analysis unit 29
Analyzes the proprietary accumulated data moving packet (see FIG. 13) received from another data server, extracts the terminal identification information and the proprietary accumulated data, and stores them in the storage unit 31 (see FIG. 8). That).

Although the data servers 103 to 105 can be designed as dedicated hardware devices, they are predetermined servers on a general computer system such as a workstation (WS) or a personal computer (PC). -It can also be realized in the form of executing an application.

FIG. 14 schematically shows the functional configuration of the PHS function-equipped digital camera 112 operating as an information terminal on the service network. As shown in the figure, this type of information terminal has a PHS reception function unit 4
1 and the data server change instruction packet analyzer 42 in charge
An ownership creation data transmission packet generation unit 43, an ownership accumulation data transmission request packet generation unit 44, an ownership accumulation data transmission packet analysis unit 45, and a PHS transmission function unit 46.
And a position information acquisition function unit 47, a photographing function unit 48, and a storage unit 49.

The PHS reception function unit 41 and the PHS transmission function unit 46 are functional modules that connect to the service network 118 via a telephone network (not shown) such as a PHS network to transmit / receive packets. P
The communication form itself via the HS network is not directly related to the gist of the present invention, and thus the description thereof is omitted here.
The PHS reception function unit 41, based on the instruction code included in the received packet, handles data server change instruction packet analysis unit 42 and possessed accumulated data transmission packet analysis unit 45.
The packet analysis process is distributed to any of the above.

The position information acquisition function unit 47 is a function module that periodically acquires the physical position information of the information terminal itself by using a position detection system such as GPS. The position information acquired here is stored in the storage unit 49 (described later) and is updated at any time as the information terminal moves. In addition,
When the position management server 102 (described above) acquires the position information of the information terminal 112 based on the position registration information (CS-ID) managed on the PHS base station side, the position information acquisition function unit 47 is not essential. Absent.

The photographing function section 48 is composed of an optical system such as a lens, a sensor system such as a CCD (Charge Coupled Device), and a data processing system for processing a sensor output signal. The image-processed image frame is stored in the storage unit 49 as proprietary creation data. Since the photographing function itself is not directly related to the gist of the present invention, its explanation is omitted here.

The storage section 49 is composed of a portable medium such as a flash memory, a local disk, or a tape cartridge. In the present embodiment, the storage unit 49 includes a storage unit 49A that stores the proprietary storage server of the information terminal 112 to be stored in the data server in charge,
A storage unit 49B that stores proprietary creation data such as image data that is processed or created on the information terminal 112, and control information of the information terminal 112 itself such as terminal identification information, data server address and location information, and the like. Storage unit 4
9C and.

The data-to-be-assigned / server change instruction packet analysis unit 42 receives the data
The server change command packet (see FIG. 5) is analyzed, and the address of the responsible data server stored in the storage unit 49C is set to the new responsible data server in the packet.
Update to address.

Proprietary data transmission packet generator 43
Want to send to the data server (ie service
This is a functional module for generating possession creation data that wants to receive a storage service on the network 118). The possession creation data to be transmitted is taken out from the storage unit 49B, and the terminal identification information and the data in charge from the storage unit 49C.
The server address is taken out and an ownership creation data transmission packet as shown in FIG. 9 is generated. The proprietary creation data transmission packet is then transmitted from the PHS transmission function unit 46 to the responsible data server.

Owned accumulated data transmission request packet generator 4
4 is the information terminal 1 stored in the data server in charge
12 is a functional module for generating a proprietary accumulated data transmission request packet for requesting transfer of its own proprietary accumulation server, and extracts terminal identification information and a responsible data server address from the storage unit 49C, and FIG. A proprietary accumulated data transmission request packet as shown is generated. The proprietary storage data transmission request packet is then transmitted from the PHS transmission function unit 46 to the data server in charge.

Owned accumulated data transmission packet analysis unit 45
Analyzes the proprietary accumulated data transmission packet (see FIG. 11) received from the data server in charge, and stores the transmission proprietary accumulated data included in the packet in the storage unit 49.
Store in A.

Next, the personal data transmission / reception service on the service network shown in FIG. 1 will be described in detail.

The service network 11 is shown in FIG.
8 schematically shows a data flow performed between the information terminal 8 and the information terminal (digital camera with PHS) 112.

It is assumed that the information terminal 112 exists in the area in which one of the data servers is in charge. In the illustrated example, first, the area 115 of the data server 103
It is supposed to be inside. The information terminal 112 transmits data through the nearest base station (access point) 107 or the like.
It is possible to connect to the server 103.

The information terminal 112 can transmit the proprietary creation data of the information terminal 112 itself to the data server by transmitting the proprietary creation data transmission packet to the data server 103 in charge of the area 115. The transmitted ownership creation data is stored in the data server 103 as ownership storage data.

The possession-created data transmission packet includes, in the possession-prepared data, a transmission destination address which is the address of the data server 103 which is the transmission destination, the terminal identification information assigned to the information terminal 112 itself, and the possession preparation data transmission. It is generated by adding the code and the header information of the protocol used in the communication between the information terminal, the base station, and the data server (see FIG. 9). However, the proprietary creation data transmission code is a code indicating that this packet is a proprietary creation data transmission packet.

For example, a digital camera with PHS 11
2 is the image data file "Mt-FUJ taken with the same terminal.
I.jpg ”, and the IP address“ 13 ”of the data server 103
1.32.9.23 ”and terminal identification information“ 0001-2387-4837- ”assigned to the PHS-equipped digital camera 112.
2736 ”, proprietary creation data transmission code“ 0001 ”, PH
The proprietary creation transmission packet (P1) (see FIG. 16) to which the header information "of the protocol used in the communication between the digital camera with S-PHS base station-data server" is added is transmitted.

Further, the information terminal 112 existing in the area 115 is the data server 1 in charge of the area 115.
By transmitting the proprietary accumulated data transmission request packet to 05, the transfer of the proprietary accumulated data of the information terminal 112 itself can be requested. The proprietary accumulation data transmitted from the data server 103 is stored in the storage unit 49A in the information terminal 112.

In the proprietary accumulated data transmission request packet, the transmission request proprietary accumulated data name which is the name of the data in the proprietary accumulated data requested by the terminal, the destination address which is the address of the data server 103 which is the destination, Information terminal 1
12 is generated by adding the terminal identification information assigned to itself, the proprietary accumulated data transmission request code, and the header information of the protocol used in the communication between the information terminal, the base station, and the data server (see FIG. 10). See). However, the proprietary accumulated data transmission request code is a code indicating that this packet is a proprietary accumulated data transmission request packet.

For example, the digital camera with PHS 11
2 is the image data name “Mt-ASAMA.jpg” stored in the data server 103 and the IP of the data server 103.
The address "131.32.9.23" and the terminal identification information "0001-assigned to the PHS-equipped digital camera 112"
2387-4837-2736 ", proprietary stored data transmission request code" 0010 ", and proprietary stored data transmission with digital camera with PHS-PHS base station-header information of protocol used in communication between data servers The request packet (P2) (see FIG. 17) is transmitted.

When the data server 103 in charge of the area 115 in which the information terminal 112 exists receives the proprietary accumulated data transmission request packet, the data server 103 stores the data in the data server based on the received terminal identification information and the transmission request proprietary accumulated data name. The corresponding data is extracted from the storage unit 31 of FIG. Then, in the extracted data (transmission request possession accumulated data), the terminal address of the transmission destination (which can be obtained from the terminal identification information) corresponding to the terminal identification information, and the possession accumulated data transmission code,
A proprietary accumulated data transmission packet (see FIG. 11) added with header information of the protocol used in the communication between the data server, the base station and the information terminal is transmitted to the information terminal 112. As a result, the requested proprietary accumulated data can be transmitted to the information terminal 112.

However, the terminal address means the IP of the information terminal.
An address, a mobile phone number, an IC card number attached to a satellite broadcast receiver, a manufacturing number, and the like. When the terminal identification information can be used as a destination on the network like an IP address, the terminal identification information may be used as the terminal address. The proprietary accumulated data transmission code is a code indicating that this packet is a proprietary accumulated data transmission packet.

For example, the digital camera with PHS 11
2 to FIG. 17, when the proprietary accumulated data transmission request packet is received, on the data server 103 side,
First, based on the terminal identification information "0001-2387-4837-2736" of the received proprietary accumulated data transmission request packet and the transmission request proprietary accumulated data name "Mt-ASAMA.jpg", from the proprietary accumulation database in the storage unit 31. Applicable image data (file) "M
Extract "t-ASAMA.jpg".

Next, the data server 103 uses the terminal identification information-terminal address conversion table (see Table 5) to identify the PHS telephone which is the terminal address corresponding to the terminal identification information 0001-2387-4837-2736. No. 070-7676
Extract −9999. And the image data "Mt-ASAMA.jpg"
The header information of the protocol used in the communication between the data server, the PHS base station, and the digital camera with PHS, the terminal address "070-7676-9999", and the proprietary accumulated data transmission code "0011" are added. A proprietary accumulated data transmission packet (P3) (see FIG. 18) is generated,
It transmits to the digital camera 112 with PHS.

The position management server 102 on the service network 118 uses the GPS function or the like to periodically acquire position measurement information (latitude / longitude information, etc.) at which each information terminal exists, and to obtain each information terminal. The position is managed by the position management table (see Table 1). Then, the position management server 118 periodically transmits a position information transmission packet for notifying the position information of the information terminal to the management server 101. The position information transmission packet includes the terminal identification information of the information terminal and its position measurement information, the destination address that is the address of the management server 101 that is the destination, the position information transmission code, and the communication between the position management server and the management server. It is generated by adding header information of the protocol used. However, the position measurement information is a value capable of specifying the position of the information terminal, and is represented by, for example, latitude / longitude. Also, the location information transmission code is
It is a code indicating that it is a position information transmission packet.

For example, the location management server 102 uses the PHS
In order to notify the management server 101 of the position measurement information of the attached digital camera 112, the terminal identification information "0001-2387-4837-2736" of the PHS attached digital camera 112 and P
The position measurement information of the HS-equipped digital camera 112 is “32 ° 22: 30” north latitude / 145 ° 40: 33 seconds east longitude ”, the IP address“ 135.30.9.20 ”of the management server 101 and the position information transmission code“ 0100 ”. , ”And a position information transmission packet (P4) (see FIG. 19) to which header information of a protocol used in communication between the position management server and the management server is added is generated and transmitted to the management server 101.

The management server 101 centrally manages the service network. More specifically, the following functions are realized.

(1) The geographical range in which each information terminal can move is divided into a plurality of areas, and the area where each information terminal exists is based on the position measurement information of the position information transmission packet received from the position management server 102. Specify. (2) The data server in charge of each area is assigned in advance, and the data server in charge of each information terminal is determined from the position measurement information and the terminal identification information of the position information transmission packet received from the position management server 102. (3) Each data server manages a list of information terminals currently in charge, and manages whether the data server in charge of each information terminal has changed according to the movement of the information terminal. (4) When the data server in charge of a certain information terminal is changed, a charge terminal addition command packet is transmitted to the data server in charge of the new information terminal and is in charge of the information terminal. Send a data server change order packet.

The assigned terminal addition command packet is a packet used by the management server 101 to notify the data server that an information terminal in charge of storing owned accumulated data and owned created data has been added. In the terminal identification information of the information terminal and the address of the old data server, header information of the protocol used in the communication between the management server and the data server, and the destination address that is the address of the new data server that is the destination, 6 is added (see FIG. 6). However, the assigned terminal addition instruction code is a code indicating that this packet is an assigned terminal addition instruction packet.

The data server change command packet in charge is a packet used by the management server 101 to notify the information terminal that the data server storing the owned accumulated data and the owned created data has been changed. Yes,
To the address of the new data server in charge, the header information of the protocol used in the communication between the management server, the base station, and the terminal, the destination terminal address that is the address of the information terminal that is the destination, and the data server change instruction code in charge Is added (see FIG. 5). However, the assigned data server change instruction code is a code indicating that this packet is an assigned data server change instruction packet.

For example, the PHS-equipped digital camera 11
2 is 32 degrees 22 minutes 30 seconds north latitude / 145 degrees east longitude 4 in area 115
It is assumed that the player has moved from 0 minutes 33 seconds to 24 degrees 20 minutes 30 seconds north of the area 117 and 55 degrees 40 minutes 30 seconds east longitude. Then, the position management server 102 acquires the current position measurement information of the PHS-equipped digital camera 112 and transmits the position information transmission packet (P5) to the management server 102.

On the other hand, the management server 101 determines the position measurement information in the received position information transmission packet (24 degrees north latitude 20 degrees).
Minutes 30 seconds / east longitude 55 degrees 40 minutes 30 seconds) and terminal identification information (0001-238
7-4837-2736) and search the area management table (see Table 2) to find the digital camera with PHS 11
It can be seen that 2 exists in area 117. Further, by searching the data server management table (see Table 3), the IP address (132.33.10.33) of the data server 115 in charge of the area 117 can be found. In addition, the terminal data / server list table (see Table 4)
And retrieves the IP address of the data server 103 currently in charge of the digital camera 112 with PHS (13
1.32.9.23) is understood. From these, the management server 101
Detects that the data server in charge of the PHS-equipped digital camera 112 needs to be changed from the existing data server 103 to the new data server 105.

Then, the management server 101 notifies the data server 105 newly in charge of the digital camera 112 with PHS that the information terminal in charge of storing the possession accumulation data and the possession creation data has been added. And sends a terminal addition command packet (P6). This assigned terminal addition command packet (P6) is the terminal identification information “0001-2387-4837-2” of the digital camera 112 with PHS.
736 ”and the IP address of the former data server 103“ 1 ”
31.32.9.23 ”, header information of the protocol used in the communication between the management server and the data server, and the IP address“ 132.33.10.
33 "and the assigned terminal addition instruction code" 0101 "are added (see FIG. 20).

Further, the management server 101, at the same time as the transmission of the in-charge terminal addition command packet, changes the data server, which is the storage destination of the possession accumulation data and the possession creation data, with respect to the digital camera 112 with PHS. Data server change command packet (P
7) is transmitted. The data server change command packet in charge (P7) includes the header information of the protocol used in the communication between the management server and the digital camera with PHS and the transmission destination in the IP address "132.33.10.33" of the new data server. It is configured by adding the terminal address "070-7676-9999" of the digital camera with PHS and the assigned data server change instruction code "0110" (see FIG. 21). However, the terminal address is obtained based on the terminal identification information by searching the terminal identification information-terminal address conversion table (see Table 5).

As already described with reference to FIG.
The management server 101 manages an area management table, a data server management table, a terminal responsible data server list table, and a terminal identification information-terminal address conversion table in the readable / writable storage unit 16 in the management server. .

The data server 105, which has received the responsible terminal addition command packet from the management server 101, notifies the old responsible data server based on the terminal identification information in the responsible terminal addition command packet and the address of the old responsible data server. hand,
A proprietary accumulated data movement request packet for moving the proprietary accumulated data of the information terminal stored in the old responsible data server to itself is transmitted. The proprietary accumulated data move request packet includes the terminal identification information of the information terminal which is the owner of the proprietary accumulated data requesting the movement, the address of the newly assigned data server, the header information of the protocol used in the communication between the data servers, and It is configured by adding a transmission destination address which is the address of the transmission destination old data server and a proprietary accumulated data movement request code (see FIG. 12). However, the proprietary accumulated data migration request code is a code indicating that this packet is a proprietary cumulative data migration request packet.

For example, when the new data server 105 receives the in-charge terminal addition command packet (P6), the old data server 103 stores the digital data with PHS stored in the old data server 103. Transmit a proprietary accumulated data move request packet for moving the proprietary accumulated data of the camera 112 to the new self (P8). This proprietary accumulated data movement request packet is P
Terminal identification information of digital camera with HS “0001-2387-48
37-2736 ”and the IP address“ 132.33.10.33 ”of the new data server 105, and the header information of the protocol used in the communication between the data servers and the IP address“ 131.32. ”Of the old data server 103 that is the transmission destination. 9.23 ”and proprietary accumulated data movement request code“ 0101 ”are added (see FIG. 22).

On the other hand, the data server 103 which has received the possessed accumulated data movement request packet is currently storing it based on the terminal identification information in the possessed accumulated data movement request packet and the address of the new data server 105. A proprietary accumulated data transfer packet for transmitting proprietary accumulated data for the existing information terminal is transmitted to the new data server 105. The proprietary accumulated data moving packet is the terminal identification information of the information terminal that is the owner of the moving proprietary accumulated data, the proprietary accumulated data to be moved, the header information of the protocol used in the communication between the data servers, and the new data of the destination. -It is configured by adding the destination address, which is the address of the server, and the proprietary accumulated data movement code (see Fig. 13).

However, in the above description, the possessed accumulated data accumulated by the old responsible data server 103 is moved instead of being copied and sent. After sending a copy of the stored data to the new data server 105, when the signal indicating the completion of reception of the own data accumulation is received from the new data server 105, the own data accumulation is deleted from the user's own copy. May be. The proprietary accumulated data movement code is a code indicating that this packet is the proprietary accumulated data movement packet.

For example, when the old data server 103 receives the proprietary accumulated data movement request packet (P8),
Digital camera with PHS currently stored by me 1
The proprietary accumulated data movement packet (P9) for migrating the proprietary accumulated data of No. 2 is transmitted to the newly assigned data server. This proprietary accumulated data movement packet (P9)
Is the terminal identification information “0001-2387-4837-2736” of the digital camera 112 with PHS, the proprietary accumulated data of the digital camera 112 with PHS, the header information of the protocol used in the communication between the data servers, and the transmission destination. IP address of the new data server in charge of "132.33.10.33"
And a proprietary accumulated data movement code “0110” are added (see FIG. 23).

The information terminal 112, which has received the data server change command packet in charge from the management server 101, stores the data stored in the readable / writable storage unit 49C in the terminal.
Change the address of the server to the address of the new data server in charge data server change command packet.

For example, the PHS-equipped digital camera 11
When No. 2 receives the data server change instruction packet (P7) in charge, the IP address of the data server stored in its own device 49C is set to "131.32.9.2".
Data server change command packet from 3 "(P7)
Change to "132.33.10.33" described in. As a result, the PHS-equipped digital camera 112 thereafter transmits the proprietary creation data transmission packet (P10), the proprietary accumulated data transmission request packet (P12), and the proprietary accumulated data to the new data server 105 in charge. The transmission packet (P12) will be received.

In the example shown in FIG. 15, with the movement of the information terminal, all owned and accumulated data related to the information terminal is moved between the data servers. The summary is not limited to this.
For example, depending on a parameter such as the frequency of use, it is possible to move only some of the accumulated data that the information terminal is expected to need immediately between the data servers.

Further, based on the movement status of the information terminal and the movement history so far, the area having a high possibility of moving next is determined, and the possessed accumulated data is copied in advance to the data server in charge of the area. It is also possible to simplify the processing when changing the area.

[0138] The user may be provided with a device for detecting his / her position information and notifying it to the position management server 102, in addition to the information terminal connectable to the service network 118 such as the PHS function.

The service network 11 is shown in FIG.
8 shows a situation where a user who possesses a device 120 with a GPS function in addition to an information terminal (PDA) 114 that uses the No. 8 device moves between areas.

The device with GPS function 120 transmits information for grasping the position of the user. Further, the user can use the PHS function of the information terminal 114 to access the data server 103 in the area 115 in which the user is located to send and receive data. For example, according to the procedure as described above, it is possible to receive the possession accumulation data and to transmit the possession creation data.

On the other hand, each data server manages the owned and accumulated data of the information terminals existing in the area that it is in charge of. For example, the data server 103
Manages the database of the owned and accumulated data of the information terminals 114 in the area 115 and other information terminals (not shown).

When the user moves between areas, the device 12
The position information is notified to the position management server 102 by 0, and the possessed accumulated data of the user or the information terminal moves between two or more data servers.

In the illustrated example, when the user moves from the area 115 to the area 116, the user-owned accumulated data 122 stored in the data server 103 moves to the data server 104.

In the area 116, the user replaces the information terminal 114 with a PHS function such as a PDA and replaces the stationary information terminal 12 such as a desktop computer.
Use 1. In this case, the area 116 is connected to the service network 118 via the modem 109.
It is possible to receive owned accumulated data and send owned created data to and from the data server 104 in charge of.

However, with the movement of the user, not all owned and stored data related to the user is transferred between the data servers, but a part of the owned and stored data is stored according to a parameter such as the frequency of use. Only one may be moved between data servers (Id.).

As already described with reference to FIG. 15, when the information terminal moves between areas, the management server 10
1 transmits a responsible terminal addition packet to the new responsible data server, and also transmits a responsible data server change command packet to the information terminal. In contrast, the new responsible data server is
A proprietary accumulated data migration request packet is sent to the server to migrate the proprietary cumulative data between the old and new data servers in charge. Further, after the transfer of the possessed accumulated data between the data servers is completed, the information terminal can perform procedures such as receiving the possessed accumulated data and transmitting the possessed created data to the new data server in charge.

Here, the information terminal, which has received the data server change command packet in charge from the management server 101, notifies the new data server in charge before the transfer of the owned and accumulated data between the old and new data servers is completed. When trying to perform a procedure such as transmission of possession creation data or reception of possession accumulation data, there arises a problem that the data does not yet exist.

In order to solve such a problem, for example, a method of waiting for the transmission of the proprietary accumulated data until the requested proprietary accumulated data moves to a new data server in charge can be considered. FIG. 25 shows a modification of the data flow shown in FIG. 15 in order to wait for the transmission of the proprietary accumulated data.

With the movement of the digital camera with PHS 112, the management server 101 transmits a terminal addition command packet (P6) to the new data server 105 in charge, and the data server in charge to the digital camera with PHS 112 in charge. The change command packet (P7) is transmitted.

The new data server 105 in charge transmits a proprietary accumulated data movement request packet (P8) to the old data server 103. Then, before the transfer of the relevant accumulated data is completed, the digital
Camera 112 possession data transmission packet (P10)
Suppose that a private storage data transmission request packet (P11) is transmitted.

Upon receipt of the proprietary creation data transmission packet (P10), the new data server 105 stores it in its own storage unit as it is. Further, since the possessed accumulated data is not held yet, the possessed accumulated data transmission packet (P12) is received after the possessed accumulated data movement packet (P9) is received from the old data server 103 and the data movement is completed. It transmits to the digital camera 112 with PHS.

As another method for solving the problem in the case where the information terminal has requested the transmission of the proprietary accumulated data to the new responsible data server which has not completed the movement of the proprietary accumulated data, the new responsible data server is It is also conceivable that the proprietary accumulated data transmission request packet is passed through to the old responsible data server, and the proprietary accumulated data is transmitted from the old responsible data server side. FIG. 26 shows a modified example of the data flow shown in FIG. 15 for passing through the possessed accumulated data transmission request packet between the data servers.

With the movement of the digital camera with PHS 112, the management server 101 transmits a terminal addition command packet (P6) to the new data server 105 in charge and the data server in charge in the digital camera 112 with PHS. The change command packet (P7) is transmitted.

The new data server 105 in charge transmits a proprietary accumulated data movement request packet (P8) to the old data server 103. Then, before the transfer of the relevant accumulated data is completed, the digital
Camera 112 possession data transmission packet (P10)
Suppose that a private storage data transmission request packet (P11) is transmitted.

Upon receipt of the possession creation data transmission packet (P10), the new data server 105 stores it in its own storage unit as it is. Further, since the possessed accumulated data is not held yet, the possessed accumulated data transmission request packet (P11) is passed through to the old data server 103 in charge.

When the old data server 103 in charge receives the proprietary accumulated data transmission request packet (P11), it transfers the requested proprietary accumulated data to the digital camera 112 with PHS before transferring the requested proprietary accumulated data to the new data server. A proprietary accumulated data transmission packet (P12) is transmitted to the.

After that, the old data server 103 sends a proprietary accumulated data move packet (P9) to the new data server 105 to complete the data move.

As another method for solving the problem in the case where the information terminal requests the new responsible data server that has not completed the movement of the owned accumulated data to send the owned accumulated data, It is possible that the management server 101 does not notify the information terminal of the change of the data server in charge until the data transfer to the new data server in charge is completed. FIG. 27 shows a modified example of the data flow shown in FIG. 15 in which the management server 101 refrains from changing the data server in charge of the information terminal until the data movement is completed.

With the movement of the PHS-equipped digital camera 112, the management server 101 transmits a responsible terminal addition command packet (P6) to the new responsible data server 105. However, the data server change command packet (P7) in charge to the digital camera 112 with PHS is not yet transmitted.

The new data server 105 in charge sends a proprietary accumulated data move request packet (P8) to the old data server 103. In response to this, the old data server 103 is replaced by the new data server 105.
A proprietary accumulated data movement packet (P9) is transmitted to the.

At this point, the PHS-equipped digital camera 112 does not know that the data server in charge of itself has been changed, and therefore transmits the possession-created data transmission packet (P10) to the old data server 103 in charge. .
On the other hand, the old responsible data server 103 does not store the proprietary creation data by itself, but sends the proprietary creation data transmission packet (P10) as it is to the new responsible data server 1.
Pass through to 05.

Also, the PHS-equipped digital camera 112
Does not know that the data server in charge of it has been changed, so the owned accumulated data transmission request packet (P1
1) is transmitted to the old data server 103 in charge. At this point, the owned and accumulated data has already been transferred to the new data server 1
Since it was moved to 05, the old data server 10
3 passes through the possessed accumulated data transmission request packet (P11) to the newly assigned data server 105 as it is. On the other hand, the new data server 105
The proprietary accumulated data transmission packet (P12) is transmitted to the digital camera 112 with S.

Assuming that the information terminal has the function of notifying the old data server 103 of the reception of the server change command packet in charge, the old data server 103 is It is possible to pass the request from the terminal to the new data server 104 in charge.

On the other hand, when the management server 101 detects that the data transfer from the old responsible data server 103 to the new responsible data server 105 is completed, it instructs the PHS-equipped digital camera 112 to change the responsible data server. The packet (P7) is transmitted.

When the PHS digital camera 112 receives the data server change command packet (P7) in charge and knows that the data server has been switched, the data camera 103 in charge of the old data server 103 A server change end notification packet (P13) is transmitted. After that, the old data server 103 does not pass through the packet to the new data server 105 as described above.

The processing procedure as shown in FIG. 27 is premised on that the information terminal has a function of notifying the old data server 103 in charge that it has received the server change command packet in charge. However, the old data server ignores the request from the information terminal, so that even if there is no such premise, the information data terminal does not complete the transfer of the owned and stored data. Can solve the problem if you request to send. FIG. 28 shows a modification of the data flow shown in FIG. 27, in which the management server 101 refrains from changing the data server in charge of the information terminal until the data movement is completed.

With the movement of the PHS-equipped digital camera 112, the management server 101 transmits a responsible terminal addition command packet (P6) to the new responsible data server 105. However, the data server change command packet (P7) in charge to the digital camera 112 with PHS is not yet transmitted.

The newly assigned data server 105 transmits a proprietary accumulated data move request packet (P8) to the old assigned data server 103. In response to this, the old data server 103 is replaced by the new data server 105.
A proprietary accumulated data movement packet (P9) is transmitted to the.

At this point, the PHS-equipped digital camera 112 does not know that the data server in charge of itself has changed, and therefore transmits the possession-created data transmission packet (P10) to the old data server 103 in charge. .
On the other hand, the old data server 103 returns an error (P14) to the digital camera 112 with PHS.

Further, the digital camera 112 with PHS is provided.
Does not know that the data server in charge of it has been changed, so the owned accumulated data transmission request packet (P1
1) is transmitted to the old data server 103 in charge. On the other hand, the old data server 103 returns an error (P15) to the PHS-equipped digital camera 112.

On the other hand, when the management server 101 detects that the data transfer from the old responsible data server 103 to the new responsible data server 105 is completed, it instructs the PHS digital camera 112 to change the responsible data server. The packet (P7) is transmitted.

Data server change command packet in charge (P
The digital camera with PHS that has received 7) knows that the data server in charge of it has switched. Then, an error (P1
4) The returned proprietary creation data transmission packet is retransmitted to the new data server 105 this time. In contrast,
The new data server 105 stores the data in its own storage unit.

The digital camera 112 with PHS is also provided.
Is an error from the old data server 103 (P15)
This time, the proprietary accumulated data transmission request packet returned by is retransmitted to the new data server 105 in charge. In contrast,
The new data server 105 takes out the corresponding proprietary accumulated data from its own storage unit and transmits the proprietary accumulated data transmission packet (P12).

[Supplement] The present invention has been described in detail with reference to the specific embodiments. However, it is obvious that those skilled in the art can modify or substitute the embodiments without departing from the scope of the present invention. That is, the present invention has been disclosed in the form of exemplification, and the contents of this specification should not be construed in a limited manner. In order to determine the gist of the present invention, the section of the claims described at the beginning should be taken into consideration.

[0175]

As described above in detail, according to the present invention,
A network system and a data management method, a management device and a management method, and a data storage that manage personal data created on a personal computer or digital camera on a network An apparatus and a data storage apparatus control method, an information terminal, an information terminal control method, and a storage medium can be provided.

Further, according to the present invention, the personal data can be managed on the network so that the personal data can be easily accessed even from the destination, and the network system and the data management method for managing the personal data owned on the network. A management device, a management device method, a data archiving device, a data archiving device control method, an information terminal, an information terminal control method, and a storage medium can be provided.

Further, according to the present invention, the personal data can be managed on the network so that the user or the terminal can always access the shortest route, and the network system and the data for managing the personal possessed data on the network. It is possible to provide a management method, a management device and a management device method, a data archiving device and a data archiving device control method, an information terminal, an information terminal control method, and a storage medium.

Further, according to the present invention, personal data can be managed on the network so that transmission delay does not occur even if the user physically moves, and personally owned data is managed on the network. It is possible to provide a network system and a data management method, a management device and a management method, a data storage device and a data storage device control method, an information terminal, an information terminal control method, and a storage medium.

In the service network according to the present invention, the data (owned accumulated data) required by the terminal (or user) placed on the data server is closer to the destination due to the movement of the terminal (or user). It is designed to be moved to a data server. For example, the movement of this proprietary accumulated data is performed based on the position information of the terminal. Further, the terminal (or the user) can exchange data with a data server having a short distance at various destinations. Therefore, the terminal (or user) can perform high-speed reception of owned accumulated data and transmission of owned creation data.

Further, the possession accumulation data is a plurality of data.
It saves resources on the data server because it is moved rather than copied and stored on the server.

On the service network, personal data is prefetched according to the movement of the terminal or the user, so that the personal data is cached according to the number of accesses, regardless of the number of accesses. Data can be accessed at high speed.

In short, according to the present invention, rather than the conventional content distribution service for a large number of unspecified users using a plurality of cache servers, a data owner owned by a specific individual (or a specific terminal) can be provided. It becomes possible to perform high-speed delivery of.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing an overall configuration of a network system to which the present invention is applied.

2 is a diagram showing the network system shown in FIG.
It is the figure which showed the mode that the information terminal moved between service areas.

FIG. 3 is a diagram schematically showing a functional configuration of a management server 101.

FIG. 4 is a diagram schematically showing a data structure of a position information transmission packet.

FIG. 5 is a diagram schematically showing a data structure of a responsible data server change instruction packet.

FIG. 6 is a diagram schematically showing a data structure of a responsible terminal addition instruction packet.

FIG. 7 is a diagram schematically showing a functional configuration of data servers 103 to 105.

FIG. 8 is a diagram schematically showing a data structure in a storage unit 31.

FIG. 9 is a diagram schematically showing a data structure of a proprietary creation data transmission packet.

FIG. 10 is a diagram schematically showing a data structure of a proprietary accumulated data transmission request packet.

FIG. 11 is a diagram schematically showing a data structure of a proprietary accumulated data transmission packet.

FIG. 12 is a diagram schematically showing a data structure of a proprietary accumulated data movement request packet.

FIG. 13 is a diagram schematically showing a data structure of a proprietary accumulated data movement packet.

FIG. 14 is a diagram schematically showing a functional configuration of a digital camera 112 with a PHS function that operates as an information terminal on a service network.

FIG. 15 is a diagram schematically showing a data flow performed between a service network 118 and an information terminal (digital camera with PHS) 112.

FIG. 16 is a diagram showing a usage example of a proprietary creation data transmission packet.

FIG. 17 is a diagram showing a usage example of a proprietary accumulated data transmission request packet.

FIG. 18 is a diagram showing a usage example of a proprietary accumulated data transmission packet.

FIG. 19 is a diagram showing a usage example of a position information transmission packet.

FIG. 20 is a diagram showing a usage example of a responsible terminal addition command packet.

FIG. 21 is a diagram showing an example of use of a responsible data server change instruction packet.

FIG. 22 is a diagram showing an example of use of a proprietary accumulated data movement request packet.

[Fig. 23] Fig. 23 is a diagram illustrating an example of using a proprietary accumulated data movement packet.

FIG. 24 is a diagram showing a state where a user having both an information terminal and a position information notification device moves between service areas in the network system shown in FIG.

FIG. 25 is the service network 11 shown in FIG.
9 is a diagram showing a modified example of the data flow in FIG.

FIG. 26 is the service network 11 shown in FIG.
9 is a diagram showing a modified example of the data flow in FIG.

FIG. 27 is the service network 11 shown in FIG.
9 is a diagram showing a modified example of the data flow in FIG.

FIG. 28 is the service network 11 shown in FIG.
9 is a diagram showing a modified example of the data flow in FIG.

FIG. 29 is a diagram schematically showing an example of a conventional network configuration for providing a content distribution service.

FIG. 30 is a diagram schematically showing an example of a conventional network configuration that provides a content distribution service.

[Explanation of symbols]

11 ... Input unit, 12 ... Position information transmission packet analysis unit 13 ... Responsible data / server change command packet generation unit 14 ... Responsible terminal addition command packet generation unit 15 ... Output unit, 16 ... Storage unit 21 ... Input unit, 22 ... Owned Creation data transmission packet analysis unit 23 ... Owned accumulated data transmission request packet analysis unit 24 ... Owned accumulated data transmission packet generation unit 25 ... Assigned terminal addition command packet analysis unit 26 ... Owned accumulated data movement request packet generation unit 27 ... Owned accumulated data movement Request packet analysis unit 28 ... Owned accumulated data moving packet generation unit 29 ... Owned accumulated data moving packet analysis unit 30 ... Output unit, 31 ... Storage unit 41 ... PHS receiving function unit 42 ... PHS receiving function unit 43 ... Responsible data server change Command packet analysis unit 44 ... Owned accumulated data transmission request packet generation unit 45 ... Owned accumulated data transmission packet Analysis unit 46 ... PHS transmission function unit 47 ... Position information acquisition function unit 48 ... Shooting function unit 49 ... Storage unit 101 ... Management server 102 ... Position management servers 103-105 ... Data servers 106-111 ... Access point ( Base stations, modems) 112 to 114 ... Information terminals 115 to 117 ... Area 118 ... Service network

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takashi Nozaki             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation F-term (reference) 5B082 HA05 HA08                 5B085 AC11 BG03 BG07                 5K067 AA21 BB04 BB21 CC08 DD17                       DD52 EE02 EE10 EE16 HH21                       HH23 JJ52 JJ56    (54) [Title of Invention] Network system for managing personally owned data on a network, data management method, and management system                     Management device and management method, data storage device and data storage device control method, information terminal, and information terminal                     Control method and storage medium

Claims (43)

[Claims] 1. A network system for managing personally owned data on a network, which is in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A plurality of data storage devices arranged on the network for storing the proprietary data of the personal information terminal, position information measuring means for measuring the position information of the personal information terminal at the present location, and the position information management Management means for managing a data storage device in charge of storing the proprietary data of the personal information terminal based on the position information measured by the personal information terminal, and managing the personal proprietary data on the network. Network system. 2. Each of the data storage devices stores the proprietary data transmitted from the personal information terminal in its area, and also transmits the proprietary data being stored in response to a request from the personal information terminal. A network system for managing personally owned data on a network according to claim 1. 3. The management means is in charge of the destination area in response to detecting that the personal information terminal has moved between areas based on the position information measured by the position information management means. The personal possession according to claim 1, wherein the addition of the personal information terminal in charge is notified to the data storage device and the change of the data storage device in charge is notified to the personal information terminal. A network system that manages data on a network. 4. The data storage device responds to the notification of the addition of the personal information terminal to another data storage device which has been in charge of storing the data owned by the personal information terminal until now. The network system for managing personal possessed data on a network according to claim 1, characterized in that the personal information terminal requests the movement of the possessed data of the personal information terminal. 5. The data storage device, after receiving the notification of the addition of the personal information terminal, owns the personal information terminal from another data storage device which has been in charge of storing the own data of the personal information terminal until now. The individual according to claim 1, wherein when the personal information terminal requests the transmission of the proprietary data before the data is moved, the personal data terminal completes the movement of the proprietary data and then responds to the transmission request. A network system that manages proprietary data on a network. 6. The data storage device is owned by another data storage device, which has been in charge of storing the owned data of the personal information terminal until the data storage device is notified of the addition of the personal information terminal. The personal possession according to claim 1, wherein when the personal information terminal requests the transmission of the proprietary data before moving the data, the transmission request is transferred to the other data storage device. A network system that manages data on a network. 7. The managing means waits until the transfer of the data owned by the personal information terminal is completed between the data storage devices in charge of old and new as the personal information terminal moves between areas, and The network system for managing personally owned data on a network according to claim 1, characterized in that the information terminal is notified of a change in the data storage device in charge. 8. The data storage device moves the possessed data of the personal information terminal, which has been stored so far, to another data storage device which is newly in charge as the personal information terminal moves between areas. After that, when the transmission request for the proprietary data is received from the personal information terminal, the transmission request is transferred to the other data storage device, and the personal possessed data according to claim 1 on the network. A network system to manage. 9. The data storage device, until the personal information terminal moves between areas, until the data stored in the personal information terminal which has been stored until now is transferred to another data storage device in charge. The network for managing personally owned data on the network according to claim 1, wherein an error is returned to the personal information terminal when a transmission request for the proprietary data is received from the personal information terminal during the period. ·system. 10. A plurality of data storage devices are arranged on a network so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas, and are owned by individuals. A data management method for managing data on the network, comprising: a position information measuring step of measuring position information of a personal information terminal at present, based on position information measured by the position information managing step, A data management method for managing personal owned data on a network, comprising: a management step of managing a data storage device in charge of storing the own data of the personal information terminal. 11. A step in which a data storage device stores proprietary data transmitted from a personal information terminal in its area, and the data storage device stores proprietary data in response to a request from the personal information terminal. The method for managing data according to claim 10, further comprising the step of transmitting: 12. In the management step, in response to detecting that the personal information terminal has moved between areas based on the position information measured in the position information management step, the area to be moved is in charge. 11. The personal possession according to claim 10, wherein the data storage device is notified of the addition of the personal information terminal in charge and the personal information terminal is notified of the change of the data storage device in charge. A data management method for managing data on a network. 13. A data storage device, in response to receiving a notification of the addition of a personal information terminal, to another data storage device which has been in charge of storing data owned by the personal information terminal until now. 2. The method according to claim 1, further comprising the step of requesting the movement of the data owned by the personal information terminal.
A data management method for managing personally owned data described in 0 on a network. 14. The data storage device, after receiving the notification of the addition of the personal information terminal, owns the personal information terminal from another data storage device that has been in charge of storing the possessed data of the personal information terminal until now. 11. The method according to claim 10, further comprising the step of responding to the transmission request after completing the movement of the proprietary data when the personal information terminal requests the transmission of the proprietary data before moving the data. A data management method for managing the personally owned data described in (1) on the network. 15. The data storage device, after receiving the notification of the addition of the personal information terminal, owns the personal information terminal from another data storage device that has been in charge of storing the possessed data of the personal information terminal until now. 11. The method according to claim 10, further comprising a step of transferring the transmission request to the other data storage device if the personal information terminal requests transmission of the proprietary data before moving the data. Data management method for managing personally owned data on the network. 16. A data storage device moves the possessed data of the personal information terminal, which has been stored so far, to another data storage device which is newly in charge as the personal information terminal moves between areas. 11. The personal possession data according to claim 10, further comprising a step of transferring the transmission request to the other data storage device when a transmission request for the possession data is received from the personal information terminal later. Data management method for managing data on the network. 17. The personal information terminal is waited for completion of the transfer of the possessed data of the personal information terminal between the old and new data storage devices as the personal information terminal moves between areas, and 11. The method according to claim 10, further comprising the step of notifying a change of the data storage device in charge.
A data management method for managing the personally owned data described in (1) on the network. 18. The data storage device, until the personal information terminal moves between areas, until the data held by the personal information terminal that has been stored until now is transferred to another data storage device in charge. The personal possessed data according to claim 10, further comprising a step of returning an error to the personal information terminal when a transmission request for the possessed data is received from the personal information terminal during the period. Data management method to manage in. 19. A personal possession on a network in which a plurality of data storage devices are arranged so as to handle each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A management device for managing data, wherein a data storage device in charge of storing data owned by the personal information terminal is determined based on position information of the personal information terminal. 20. In response to detecting that the personal information terminal has moved between areas, the data storage device in charge of the destination area is notified of the addition of the personal information terminal in charge, and 20. The management device according to claim 19, wherein the management device notifies the personal information terminal of a change in the data storage device in charge. 21. When the personal information terminal moves between areas, waiting for the completion of the movement of the possessed data of the personal information terminal between the old and new data storage devices, The management device according to claim 19, wherein the management device notifies that the data storage device in charge is changed. 22. Owned on a network in which a plurality of data storage devices are arranged so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A management method for managing data, wherein a data storage device in charge of storing the proprietary data of the personal information terminal is determined based on the position information of the personal information terminal. 23. In response to detecting that the personal information terminal has moved between areas, the data storage device in charge of the destination area is notified of addition of the personal information terminal in charge, and The management method according to claim 22, wherein the personal information terminal is notified of a change in the data storage device in charge. 24. When the personal information terminal moves between areas, waiting for the completion of the movement of the data owned by the personal information terminal between the old and new data storage devices, 23. The management method according to claim 22, wherein the change of the data storage device in charge is notified. 25. A data storage device arranged on a network so as to be in charge of an individual area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. Data storage characterized by comprising means for storing the proprietary data transmitted from the personal information terminal in the area, and means for transmitting the proprietary data being stored in response to a request from the personal information terminal. apparatus. 26. In response to receiving the notification of the addition of the personal information terminal, the personal information terminal is transferred to another data storage device which has been in charge of storing the data owned by the personal information terminal. 26. The data storage device according to claim 25, further comprising means for requesting the movement of the possessed data of the device. 27. After receiving the notification of the addition of the personal information terminal, before moving the personal data of the personal information terminal from another data storage device that has been in charge of storing the personal data of the personal information terminal until now. 26. The data storage according to claim 25, further comprising means for responding to the transmission request after completing the transfer of the proprietary data when the personal information terminal requests the transmission of the proprietary data. apparatus. 28. After the notification of the addition of the personal information terminal is received, before the possession data of the personal information terminal is transferred from another data storage device which has been in charge of the storage of the possession data of the personal information terminal. 26. The data storage device according to claim 25, further comprising means for transferring the transmission request to the other data storage device when the personal information terminal requests the transmission of the proprietary data. 29. When the personal information terminal moves between areas, the personal information stored in the personal information terminal is transferred to another data storage device which is in charge of the personal information terminal, and then the personal information is transferred. 26. The data storage device according to claim 25, further comprising means for transferring the transmission request to the other data storage device when the transmission request for the proprietary data is received from the terminal. 30. The personal information terminal is moved from one area to another, and the personal data stored in the personal information terminal is moved to another data storage device in charge of the personal information terminal. 26. The data storage device according to claim 25, further comprising means for returning an error to the personal information terminal when a transmission request for proprietary data is received from the information terminal. 31. A control method of a data storage device arranged on a network so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. And storing the proprietary data transmitted from the personal information terminal in each area, and transmitting the proprietary data stored in response to a request from the personal information terminal. Data storage device control method. 32. In response to receiving the notification of the addition of the personal information terminal, the personal information terminal is sent to another data storage device which has been in charge of storing the data owned by the personal information terminal until now. 32. The method of controlling a data archiving apparatus according to claim 31, further comprising the step of requesting the movement of the possessed data of. 33. After the notification of the addition of the personal information terminal is received, before the possession data of the personal information terminal is moved from another data storage device which has been in charge of the storage of the possession data of the personal information terminal. 32. The data storage according to claim 31, further comprising a step of responding to the transmission request after completing the movement of the proprietary data when the personal information terminal requests the transmission of the proprietary data. Device control method. 34. After receiving the notification of the addition of the personal information terminal, before moving the personal data of the personal information terminal from another data storage device which has been in charge of storing the personal data of the personal information terminal until now. 32. The data archiving apparatus according to claim 31, further comprising a step of transferring the transmission request to the other data archiving apparatus when the personal information terminal requests the transmission of the proprietary data. Control method. 35. When the personal information terminal moves between areas, the personal information stored in the personal information terminal is moved to another data storage device which is in charge of the personal information terminal, and then the personal information is transferred. 4. The method according to claim 3, further comprising the step of transferring the transmission request to the other data storage device when the transmission request for the proprietary data is received from the terminal.
1. The method for controlling the data storage device according to 1. 36. As the personal information terminal moves between areas, the individual information stored in the personal information terminal until it is moved to another data storage device newly in charge 32. The method of controlling a data archiving apparatus according to claim 31, further comprising a step of returning an error to the personal information terminal when receiving a transmission request for proprietary data from the information terminal. 37. An information terminal operating on a network in which a data storage device in charge of each area obtained by dividing a geographical range in which the information terminal can move in a real space is divided into a plurality of areas is provided. , Proprietary data processing means for processing or editing the proprietary data, means for transmitting the proprietary data to the data storage device in charge of the area currently in, and requesting transmission of the proprietary data to the data storage device in charge of the area in which it is currently An information terminal, comprising: 38. Further comprising means for changing the transmission destination of the proprietary data and the proprietary data transmission request in response to the notification of the change of the data storage device in charge in response to the movement between the areas. 38. The method according to claim 37,
Information terminal described in. 39. A control method of an information terminal operating on a network in which a data storage device in charge of each area obtained by dividing a geographical range in which an information terminal can move in a real space is divided. In addition, the proprietary data processing step of processing or editing the proprietary data, the step of transmitting the proprietary data to the data storage device in charge of the area where the user currently resides, And a step of requesting transmission, the method of controlling an information terminal. 40. Further comprising the step of changing the transmission destination of the proprietary data and the proprietary data transmission request in response to the notification of the change of the data storage device in charge in response to the movement between the areas. 40. The method for controlling an information terminal according to claim 39, wherein: 41. Owning an individual by arranging a plurality of data storage devices on a network so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A storage medium that physically stores computer software in a computer-readable format, which is written so as to execute a process for managing data on the network on a computer system. A position information measuring step of measuring the position information of the information terminal at the present location, and a management for managing a data storage device in charge of storing the proprietary data of the personal information terminal based on the position information measured by the position information management step. A storage medium comprising: a step. 42. A computer for controlling a data storage device arranged on a network so as to be in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space into a plurality of areas. A storage medium that physically stores computer software written to be executed on a system in a computer-readable format, the computer software storing proprietary data transmitted from a personal information terminal in each area. And a step of transmitting proprietary data stored in response to a request from the personal information terminal. 43. Control of an information terminal operating on a network in which a data storage device in charge of each area obtained by dividing a geographical range in which a personal information terminal can move in a real space is divided into a plurality of areas is arranged. A method for processing or editing proprietary data, transmitting proprietary data to a data storage device in charge of the area where the user currently resides, and Requesting the transmission of the storage medium.