KR20020048548A - Data-retrieval system between personal computers and method of running the same - Google Patents

Abstract

PURPOSE: A system for searching data between personal computers and a method for managing the same are provided to supply a data search, a data transmission/receipt, and a messenger function between subscribers by distributing all information being supplied in an information service system to groups classified according to usage objects and storing the information in a hard disk of a subscriber computer of a corresponding group. CONSTITUTION: A log-in server(13) checks a registration or not of a personal computer connected in the same peer to peer network. A web server(12) receives an updated IP address of a subscriber computer which performs a log-in process to the peer to peer network and includes a client program. A database server(14) stores subscriber information and information to be supplied to the peer to peer network. A control server(15) controls the log-in server(13), the web server(12), and the database server(14), and controls a data search service between personal computers. The control server(15) transmits an information unit for constituting one information to an IP address of a buddy list with an information code thereof, respectively. If an omitted information code is existed, the control server(15) supports an information unit of the omitted information code.

Description

Data retrieval system between personal computers and its operation method {DATA-RETRIEVAL SYSTEM BETWEEN PERSONAL COMPUTERS AND METHOD OF RUNNING THE SAME}

The present invention relates to a data retrieval system between a personal computer and its operation method, and more particularly, to store information provided separately for each subscriber computer in a peer-to-peer network environment, and to store data between subscriber computers. The present invention relates to a data retrieval system between a personal computer providing a retrieval, data transmission and messenger service, and a method of operating the same.

In general, information service companies adopt a method of storing a large amount of data in their own database and providing the information to the connected members.

This way, as the number of members increases, the system becomes more heavily loaded and the operating costs increase. In addition, members must suffer the inconvenience of slowing down the network due to the increase in the number of users.

On the other hand, there is a small LAN in which connected computers can exchange data with each other without requiring a dedicated file server. Such a network is called a peer-to-peer network. Peer-to-peer networks do not have a central file server, and all computers on the network have access to public files on all other workstations.

Since the information retrieval method in general peer-to-peer network searches for information owned by individuals, the useful value of information is lower than that of general information service providers. There is a problem in that network traffic is increased because a large number of computers are connected.

In other words, since it is impossible to know which computer has the information it wants, it has to search numerous computers once connected to the same peer-to-peer network. Therefore, as the number of users increases, disk access occurs more frequently between personal computers, which increases network traffic and causes network speed to be too slow.

The present invention has been made to solve the above-mentioned problems, by distributing all the information provided by the information service system to the groups divided by the purpose of use to be stored in the hard disk of the subscriber computer of the group, data search between subscribers, It is an object of the present invention to provide a data retrieval system between personal computers that can provide data transmission and reception and a method of operating the same.

1 is a block diagram illustrating a data retrieval system between a personal computer and its operation method according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating the configuration of a system server of FIG. 1. FIG.

3 is a flowchart illustrating a method of operating a data retrieval system between personal computers according to an embodiment of the present invention.

4 is a flowchart for explaining a member login routine of FIG.

FIG. 5 is a flowchart for explaining an information retrieval, file transmission and reception service routine of FIG. 3;

6 is a flowchart for explaining a member registration routine of FIG.

7 is a flowchart illustrating a method for supporting a system server when there is a missing information code in the same peer to peer network.

※ Explanation of code about main part of drawing ※

10: system server

11, 16, 20: subscriber computer

12: web server

13: login server

14: database server

15: Control Server

The above object can be achieved by a data retrieval system between personal computers that supports data retrieval and transmission and reception of data between subscriber computers connected to the same peer to peer network, and the system is the same. A login server for checking whether a personal computer connected to the peer-to-peer network is registered; A web server receiving an updated IP address of a subscriber computer logging into the same peer-to-peer network and having a client program installed thereon; A database server storing subscriber information and information to be provided to the same peer-to-peer network; And a control server controlling the login server, the web server, and the database server to control a data retrieval service between personal computers. Herein, the control server transmits the information units constituting one piece of information together with the information code to the IP address of the buddy list, and if the missing information code exists, the information unit of the missing information code is provided. It is characterized by supporting.

Preferably, the same peer-to-peer network is set for each group selected by the subscriber, and the one piece of information is information selected by the group selected by the subscriber.

In addition, when information of another group to which the subscriber does not belong is required, it is preferable to connect the subscriber's computer to the peer-to-peer network of the other group.

In addition, the size of the information unit is preferably controlled by the control server so that the download time does not exceed 1 minute.

More preferably, after a predetermined time elapses after the subscriber computer logs out, the information unit stored in the logged out subscriber computer is automatically deleted.

The above object can also be achieved by a method of operating a data retrieval system between personal computers that supports data retrieval and transmission and reception of data between subscriber computers connected to the same peer to peer network. Receiving an updated IP address of the subscriber computer each time the subscriber computer logs in to the same peer-to-peer network; Transmitting the received IP address to a subscriber computer logging in; Transmitting and storing an information unit constituting one piece of information to the logged-in subscriber computer together with the information code; And if the missing information code is present, the system server supporting the information unit of the missing information code.

The supporting of the information unit of the missing information code by the system server may include: checking whether there is a subscriber computer that can receive the information unit of the missing information code among the subscriber computers of the same network; Transmitting and storing the information unit of the missing information code to the subscriber computer when there is a subscriber computer capable of receiving the information unit of the missing information code among the subscriber computers of the same network; And when there is no subscriber computer that can receive the information unit of the missing information code among the subscriber computers of the same network, providing the information unit of the missing information code by the system server. Do.

The size of the information unit is preferably controlled so that the download time does not exceed 1 minute.

In addition, after a predetermined time elapses after any subscriber computer logs out, the information unit stored in the logged out subscriber computer is automatically deleted.

Hereinafter, the present invention will be described in detail with reference to the drawings.

First, FIG. 1 is a block diagram illustrating a data retrieval system between a personal computer and an operation method thereof according to an embodiment of the present invention.

The subscriber of the data retrieval system according to the present invention selects the desired information group at the time of membership registration, downloads the client program provided by the system server, and installs it on the computer. Such a computer is referred to hereinafter as a subscriber computer. In addition, a peer-to-peer network is configured for each information group.

As shown in FIG. 1, the subscriber computers 20 are connected to the same peer-to-peer network, and the system server 10 divides and transmits information about the subscriber computer 20 through the same peer-to-peer network. Supports data search and transmission and reception of data between computers 20 smoothly.

FIG. 2 is a block diagram illustrating the configuration of the system server 10 of FIG. 1.

As shown in FIG. 2, the system server 10 includes a web server 12, a login server 13, a database server 14, and a control server 15. The web server 12 is connected to subscriber computers 11 and 16 of the network via TCP / IP (Transmission Control Protocol / Internet Protocol), and is also directly connected to the control server 15 and the login server 13 to provide bidirectional information. Transmission and reception are performed. Since the web server 12 has a client program, it can also serve as one or more subscriber computers if necessary. Thus, according to the invention, one peer-to-peer network consists of subscriber computers with at least two or more client programs. The login server 13 is electrically connected directly to the control server 15 and the database server 14 to perform bidirectional information transmission and control. The database server 14 is connected to the control server 15 to perform bidirectional information transmission and control.

The server described above will be described in more detail. The login server 13 confirms registration of subscriber computers 11 and 16 connected to the same peer-to-peer network, and the web server 12 is connected to the same peer-to-peer network. Receives the updated IP address of the subscriber computer logging in and transmits the received IP address to each logged-in subscriber computer, and the database server 14 is a buddy list, subscriber information and the same peer which is a list of subscriber computers by group. The information to be provided to the two-peer network is stored, and the control server 15 controls the login server 13, the web server 12, and the database server 14, thereby controlling the data retrieval service between personal computers.

According to the present invention, information desired by the group for each preset group is divided and transmitted to the subscriber computers 11 and 16 of the network assigned to the group.

The peer-to-peer network is set for each group selected by the subscriber, and one piece of information is selected by the group selected by the subscriber. As a result, the peer-to-peer network operates for each group selected by the subscriber. This group is not fixed but may vary in size depending on the number of subscribers and operates between subscriber computers logged into the network. The information selected by one group is divided into a plurality of information units and transmitted to each subscriber computer and stored together with the information code of the divided information units. At this time, the size of the information unit is controlled by the control server 15 so that the download time does not exceed 1 minute.

The control server 15 transmits a plurality of information units constituting one information together with the information code to the IP address of the buddy list, and if the missing information code exists, the information unit of the missing information code is provided. Support. That is, if a missing information code is found, the control server 15 queries the database server for a subscriber computer that can store the information unit of the missing information code, and stores the missing information unit in the subscriber computer. If no subscriber computer can store the information unit of the missing information code, the control server 15 will provide the system with the missing information unit on behalf of the subscriber computer. In this case, there is no subscriber computer capable of storing the information unit of the missing information code, so that the amount of downloaded information of each of the subscriber computers in the network is filled in one minute so that there is no subscriber computer capable of receiving further information. It means to be.

The identification of the missing information code is done as follows. As soon as the subscriber computer logs out of any network, the information code stored in the subscriber computer is sent out from the subscriber computer. Upon receiving such an information code, the control server 15 searches for the group to which the information code belongs and checks whether or not a computer storing the information unit of the information code exists. If there is no computer storing the information unit of the information code, it is determined that the information code is a missing information code.

Further, after a predetermined time elapses after the subscriber computers 11 and 16 log out, the information units stored in the logged out subscriber computers are automatically deleted so as not to burden the memory of the subscriber computers 11 and 16.

3 is a flowchart illustrating a method of operating a data retrieval system between personal computers according to an embodiment of the present invention.

As shown in Fig. 3, when a user connects to the system server using his computer (step 301), a message is displayed on the subscriber computer as to whether or not the connected subscriber is a registered member (step 302). . Step A inserted between step 301 and step 302 corresponds to the case of "no" in response to the conditions of "click on a member registration menu item?" And "click on a registration menu item?" Of the member registration routine shown in FIG. It is associated with a conditional branch. After step A, step 302 is reached. If the user is not registered as a member, the member registration routine proceeds to induce member registration (step 303). If the member is a registered subscriber, the process proceeds to step 305 via the member login routine (step 304), and information retrieval, file transmission, and messenger services can be used in step 305. If the subscriber computer wishes to terminate service use, it is asked whether to log out via step 306 (step 307). When logged out, the network logout information and information code of the subscriber computer is transmitted (step 308). The process then proceeds to step 309 where the information units stored from the subscriber computer are automatically deleted.

4 is a flowchart for describing a member login routine of FIG. 3.

As shown in Fig. 4, when entering into the member login routine (step 304) of Fig. 3, input of an ID and password is requested (step S400). The subscriber is then authenticated based on the entered ID and password (step S401), and the IP address of the subscriber computer is transmitted to the web server 12 (step S402). The transmitted IP address is stored in the database server 14 (step S403). Thereafter, the buddy list, which is a list of IP addresses, and various kinds of information are divided into a plurality of information units and transmitted to the subscriber computer (step S405). The transmitted information unit is stored in a specific folder of the subscriber computer (step S406). When step S406 is completed, the process returns to step 304 of FIG. 3 and proceeds to step 305, which is the next step.

FIG. 5 is a flowchart for explaining an information search, file transmission and reception, and messenger service use routine of FIG. 3.

As shown in Fig. 5, when entering into step 305 of Fig. 3 where information retrieval, file transmission and reception and messenger services are available, when the subscriber clicks the information retrieval icon (step S500), another group's information code or other basic information is entered. A search term can be entered (step S501), and the search button is clicked after input (step S502). In other words, information retrieval between personal computers in the same peer-to-peer network is performed through a search word. Next, the data retrieval result in the network is displayed on the subscriber computer (step S503), the messenger service and file transmission / reception operation are performed (step S504), and the flow proceeds to step 505 to ask whether to register additional information. . If no additional information is registered, the flow proceeds to step S508 and asks whether to search for additional information. If the user wants to search for additional information, the process returns to step S501. If the user does not want to search for additional information, the process proceeds to step S509 to end the operation, and returns to step 305 of FIG.

If the user wants to register additional information in step S505 (step S506), the process proceeds to step S507 where additional registration information is transmitted to the system server, and then the process proceeds to step S508 to ask whether to search for additional information.

FIG. 6 is a flowchart for describing a member registration routine of FIG. 3.

As shown in FIG. 6, when entering into the member registration routine of FIG. 3 (step 303), it is determined whether or not the member registration menu item is clicked in step 600, and if not, proceeds to step A and proceeds to FIG. Proceed to step 302. If it is clicked, it proceeds to step 601 to determine whether or not the registration menu item is clicked. If not, proceeds to step A and proceeds to step 302 of FIG. If clicked, the process proceeds to step 602 where member information is stored in the database server (step 602) and the client program is downloaded to the subscriber computer (step 603). Then, the buddy list and various information about the subscriber computers are transmitted in units of information (step 604), stored in a specific folder of the subscriber computer (step 605), and the process returns to step 303 of FIG. Proceed.

FIG. 7 is a flowchart illustrating a method for supporting a system server when there is a missing information code in the same peer to peer network.

As shown in Fig. 7, when the buddy list and various information are transmitted to the subscriber computer in units of information, it enters the service support routine and checks whether the information code has been received (step 700). If the information code is not received, the step 700 is repeated. If the information code is received, the process proceeds to step 701 to search for the group to which the information code belongs. As a result of the search, it is determined whether there is a missing information code (step 702). If the missing information code does not exist, the process returns to step 700. If the missing information code exists, the process proceeds to step 703 to determine whether there is a subscriber computer capable of receiving the missing information code in information units. If there is a subscriber computer capable of receiving the information unit of the missing information code, the information unit of the missing information code is transmitted to the subscriber computer (step 706). If there is no subscriber computer capable of receiving the information unit of the missing information code, the flow proceeds to step 704 to transmit server support signals to all subscriber computers in the network. The search engine of the client program then sets the server to the search range (step 705) and proceeds to step 700. When transmitting the missing information code in units of information in step 706, it is determined in step 707 whether the server is being supported. If the server is not supported, the process proceeds to step 700. If the server is supported, the process proceeds to step 708 to transmit a server support stop signal to all subscriber computers in the network. In a next step 709 the search engine of the client program removes the server from the search range and proceeds back to step 700.

According to the present invention described above, there is provided a data retrieval system and a method of operating between personal computers that can share a large amount of information by combining the advantages of the peer-to-peer network and the advantages of the information service system.

According to the present invention, network traffic is greatly reduced, thereby reducing the speed and time of data retrieval. In addition, since the information provided from the system server is automatically deleted after the computer is logged out, the memory capacity of the personal computer is not taken up too much.

Claims (11)

A data retrieval system between personal computers that supports data retrieval and data transmission and reception between subscriber computers connected to the same peer-to-peer network. A login server confirming registration of a personal computer connected to the same peer-to-peer network; A web server receiving an updated IP address of a subscriber computer logging into the same peer-to-peer network and having a client program installed thereon; A database server storing subscriber information and information to be provided to the same peer-to-peer network; And A control server controlling the login server, the web server, and the database server to control a data search service between personal computers; The control server, Send each information unit constituting one piece of information together with the information code to the IP address of the buddy list, The information retrieval system between personal computers, if the missing information code is present, supports the information unit of the missing information code. The method of claim 1, wherein the same peer-to-peer network is configured for each group selected by a subscriber. Wherein said one piece of information is information selected by a group selected by said subscriber. 3. The method of claim 2, wherein when the information of another group to which the subscriber does not belong is required, the subscriber's computer is connected to the peer-to-peer network of the other group. The data retrieval system between personal computers according to claim 1, wherein the size of the information unit is controlled by the control server so that the download time does not exceed 1 minute. 2. The system of claim 1, wherein after a predetermined time elapses after the subscriber computer logs out, information units stored in the logged out subscriber computer are automatically deleted. As a method of operating a data retrieval system between personal computers that supports data retrieval and data transmission and reception between subscriber computers connected to the same peer to peer network, Receiving an updated IP address of the subscriber computer each time the subscriber computer logs in to the same peer-to-peer network; Transmitting the received IP address to a subscriber computer logging in; Transmitting and storing an information unit constituting one piece of information to the logged-in subscriber computer together with the information code; And And if a missing information code exists, the system server supporting the information unit of the missing information code. The method of claim 5, wherein the system server supporting the information unit of the missing information code, Checking whether there is a subscriber computer among the subscriber computers of the same network that can receive the information unit of the missing information code; Transmitting and storing the information unit of the missing information code to the subscriber computer when there is a subscriber computer capable of receiving the information unit of the missing information code among the subscriber computers of the same network; And And if there is no subscriber computer that can receive the information unit of the missing information code among the subscriber computers of the same network, the system server providing the information unit of the missing information code. A method of operating a data retrieval system between personal computers. 7. The method of claim 6, wherein the size of the information unit is controlled so that the download time does not exceed 1 minute. 8. The data retrieval system between personal computers according to claim 6 or 7, wherein, after a certain time after the subscriber computer has logged out, the information unit stored in the logged out subscriber computer is automatically deleted. How to operate. The method of claim 6, wherein the same peer-to-peer network is configured for each group selected by the subscriber, And wherein said one piece of information is information selected by a group selected by said subscriber. 10. The method of claim 9, wherein when the information of another group to which the subscriber does not belong is requested, the subscriber's computer is connected to the peer-to-peer network of the other group.