JP2002334026A - Reception and distribution system for terminal data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adapt a system to the addition, change, etc., of a terminal and a client only by distributing gathered data of the terminal to the client by a distributing server and a database which are connected to the terminal and client. SOLUTION: The distributing server 10 is constituted separately as terminal communication function modules 11A and 11B which communicate with terminals 1A and 1B, client communication function modules 12A and 12B which communicate with clients 2A and 2B, a database communication function module 13 which communicates with the database 4, and a server control function module 14 which manages and controls the respective communication function modules. The terminal function modules, client communication function modules, and database communication function module have specifications adaptive to the communication systems and kinds of the terminals and clients as objects of communication and the server control module has common specifications.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal data receiving / distributing system for distributing data transmitted from an information collecting terminal installed at a site to a client.

[0002]

2. Description of the Related Art In recent years, with the promotion of computerization, the spread of network environments, and the progress of data communication technology using mobile phones and PHS (registered trademark), an information collection terminal (hereinafter simply referred to as a terminal) installed at a site has been developed. ) Is developing a terminal data receiving / distributing system for distributing various data transmitted to a client.

FIG. 2 shows a configuration of a terminal data receiving / distributing system. The system is roughly divided into a plurality of information terminals 1A to 1C for acquiring site information, a plurality of clients 2A to 2C for requesting and displaying data to be acquired by each terminal, and data acquired by the terminal in accordance with a request from each client. It comprises a distribution server 3 for distributing data transmitted from the terminal to the client irrespective of a request from the client, and a database 4 for storing data from the terminal, and these are composed of Ethernet (registered trademark) and mobile phones. ,
They are connected by a network such as a PHS wireless data communication network, a dedicated communication network, or a public network.

The basic operation of the terminal data receiving / distributing system shown in FIG. 2 is as follows.

(1) The operation of receiving and delivering data from a terminal in response to a request from a client is as shown in FIG. First, the client makes a request for terminal data transmission to the distribution server (S1), thereby requesting data transmission from the distribution server to the terminal (S2), performing data acquisition processing from the terminal (S3), Is transmitted from the distribution server to the database as required (S5), and the data is transmitted from the distribution server to the client (S6).

(2) FIG. 4 shows a data reception / delivery operation in response to a data transmission event from a terminal. First, data acquisition processing of the terminal is performed (S1), acquired data is transmitted from the terminal to the distribution server (S2), and a data accumulation request is made from the distribution server to the database as needed (S3). The acquired data is transmitted to the client (S4).

(3) The operation of receiving and delivering data from the database in response to a request from the client is as shown in FIG. First, the client makes a request for transmitting stored data to the distribution server (S1), the distribution server makes a data acquisition request to the database (S2), performs data acquisition processing of the database (S3), and transmits the data from the database to the distribution server. The acquired data is passed (S4), and the data is transmitted from the distribution server to the client (S5).

[0008] There are currently various communication systems between the distribution server and the terminal or between the distribution server and the client. An example is shown below.

(1) Communication using a unique protocol based on TCP / IP (2) Communication using a standard protocol based on TCP / IP (a) HTTP (HyperTextTransferProtocol: WWW)
(B) FTP (FileTransferProtocol: file transfer protocol) (c) SMTP (SimpleMailTransferProtocol: mail transfer protocol) (3) Communication using standard distributed objects (a) CORBA (CommonObjectRequestBrokerArchite)
cture: Distributed object communication method standardized by OMG. (b) RMI (Remote Method Imvocation: Distributed object communication method provided by the programming language Java). There is a form.

[0010]

A problem with the conventional terminal data collection / delivery system is that the amount of maintenance is large. In particular, the distribution server that manages communication with terminals and clients must respond to various communication methods and various user needs. In such a case, the application must be rebuilt for each individual system case such as addition or change of a terminal or a client, which leads to poor development efficiency and enormous development costs.

An object of the present invention is to provide a terminal data receiving / distributing system which can easily cope with addition and change of terminals and clients on the system and can reduce development costs.

[0012]

In order to solve the above-mentioned problems, the present invention provides, as a distribution server configuration, a terminal communication function module for managing communication with a terminal, a client communication function module for managing communication with a client, A database communication function module that manages communication with the database,
The server control function module that manages and controls each communication function module is separately configured for each function module, and the terminal function module, client communication function module, and database communication function module can correspond to the communication method and type of the terminal, client, and database to be communicated The specifications are common to the server control module, and have the following features.

(1) Receiving terminal data for distributing data transmitted from the information collection terminal to the client by a distribution server and a database connected to the plurality of information collection terminals and the plurality of clients via the communication network. In the distribution system, the distribution server includes a terminal communication function module that manages communication corresponding to the communication method and type of each information collection terminal, and a client communication function module that manages communication corresponding to the communication method and type of each client. A database communication function module that manages communication corresponding to the communication method and type of the database; and a server control function module that manages and controls each communication function module.

(2) The terminal communication function module implements a communication function with the information collection terminal and discloses a common interface independent of the information collection terminal or its communication method to the server control function module. Features.

(3) The client communication function module implements a communication function with the client and discloses a common interface independent of the client or its communication method to the server control function module.

(4) The database communication function module implements a communication function with the database and discloses a common interface independent of the database or its communication method to the server control function module.

(5) A still image data distribution request is transmitted from the client to the client communication function module according to a prescribed communication method, and the client communication function module transmits a “still image data distribution request” of the server control function module. The server control function module requests the distribution of the still image data to the module by the function interface through a “still image data distribution request” function interface of the terminal communication function module. Request, and the terminal communication function module transmits a still image data distribution request to the information collection terminal by a prescribed communication method.

(6) The information collection terminal transmits a voice data distribution start request to the terminal communication function module according to a prescribed communication method, and the terminal communication function module transmits the voice data distribution start request of the server control function module. The server control function module requests the module to start the distribution of the voice data by the "request" function interface, and the server control function module transmits the voice data to the module by the "voice data distribution start request" function interface of the client communication function module. The client communication function module transmits a voice data distribution start request to the client according to a prescribed communication method.

(7) A sensor data distribution request is transmitted from the client to the client communication function module by a prescribed communication method, and the client communication function module transmits a "sensor data distribution request" function interface of the server control function module. The server control function module requests the sensor data distribution to the module by the “sensor data distribution request” function interface of the terminal communication function module.
The terminal communication function module transmits a sensor data distribution request to the information collection terminal according to a prescribed communication method, requesting the module to distribute sensor data.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the embodiments of the present invention, a receiving / distribution processing system of a distribution server, which is a core of the present invention, will be described in detail, and thereafter, three embodiments to which the present invention is applied. Will be described.

In the system of the present invention, as shown in FIG.
Terminal communication function modules 11A and 11B, client communication function modules 12A and 12B, database communication function module 13, and server control function module 1
The distribution server 10 is composed of the four function modules. Hereinafter, each functional module will be described in detail.

(1) Terminal communication function module A function module responsible for communication with a terminal. It has a function of executing a data acquisition request to the terminals 1A and 1B in accordance with a request from the server control function module 14. The terminal communication modules 11A and 11B are provided one by one for each terminal type. For example, if the server is capable of communicating with both the terminal 1A using the communication method A and the terminal 1B using the communication method B, a terminal communication function module for the terminal 1A and a terminal communication function module for the terminal 1B are defined, and Implementation according to the communication method is performed.

However, these terminal communication function modules 1
Functional interfaces (for example, interfaces for requesting data acquisition) disclosed by 1A and 11B to the server control function module 14 have common specifications. In this way, by making the function interface disclosed to the server control function module 14 a common specification, all the terminal communication function modules 11A, 1
1B can be recognized as the same module, and there is no need to know specific items concerning each terminal such as what terminal is making the request and what kind of communication is to be performed.

(2) Client communication function module A function module responsible for communication with the client. It has a function of executing a data distribution request to the clients 2A and 2B in accordance with a request from the server control function module 14. The client communication modules 12A and 12B
Are provided for each client type. For example, if the server is capable of communicating with both the client 2A using the communication method C and the client 2B using the communication method D,
A client communication function module for the client 2A and a client communication function module for the client 2B are defined, and mounting according to each communication method is performed.

However, these client modules 1
Functional interfaces (for example, interfaces for requesting data distribution) disclosed by the servers 2A and 12B to the server control function module 14 have common specifications. As described above, by making the function interface disclosed to the server control function module 14 a common specification, all the client communication function modules 1 are transmitted from the server control function module 14.
2A and 12B can be recognized as the same module, and what kind of client is making the request,
You do not need to know specific items about each client such as what kind of communication is performed.

(3) Database communication function module A function module responsible for communication with the database. It has a function of executing a data storage request to the database 4 in accordance with a request from the server control function module 14. One database communication module 13 is provided for each database type. For example, the storage target by the communication method E is a file storage application e, and the storage target by the communication method F is a database storage application f.
If the server is capable of communicating with both of them, a database communication function module for the storage application e and a database communication function module for the storage application f are defined, and implementation is performed according to each communication method.

However, the function interface (for example, the interface for requesting data storage) disclosed by the database communication function module to the server control function module 14 has a common specification. As described above, by making the interface disclosed to the server control function module 14 a common specification, all the database communication function modules 13 can be recognized as the same module from the server control function module 14, and the database that issues the request is It is no longer necessary to know the specifics of each database, such as the database or what kind of communication is performed and the storage destination is a file or a database.

(4) Server control function module A function module for managing and controlling the terminal communication function modules 11A and 11B, the client communication function modules 12A and 12B, and the database communication function module 13.
It has a function of controlling each function module so as to realize the function provided by the application in accordance with a request from each function module. Since each communication function module handles communication to the terminal and the client application, this function module does not include processing specific to each terminal or client. Further, even when a communication function module conforming to the interface disclosed by each communication function module is added or when the processing content of the communication function module is changed, there is no need to change this module. This module discloses a distribution processing function interface to the terminal communication function module and the client communication function module, and these communication function modules aim to realize the distribution processing function through the disclosed interface.

As an example of the operation of the distribution server according to the receiving / delivery processing method of the present invention, the flow of processing relating to a data distribution request from a client to a terminal is shown below.

(S1) A terminal data distribution request is transmitted from the clients 2A and 2B to the client communication function modules 12A and 12B by a prescribed communication method.

(S2) The client communication function modules 12A and 12B request distribution of terminal data to the server control function module 14 through the interface disclosed by the server control function module 14.

(S3) The server control function module 14 requests distribution of terminal data to the terminal communication function modules 11A and 11B through the interface disclosed by the module.

(S4) Terminal communication function module 11A,
11B transmits a data distribution request to the terminal according to a prescribed communication method.

As described above, in the receiving / distributing processing method of the present invention, it is only necessary to add / change each corresponding communication function module to the addition / change of the terminal, the client, and the database. Therefore, since only the minimum required modules are developed for each system project, development efficiency is increased and development costs can be reduced.

(Embodiment 1) Image Data Distribution Server An embodiment in which the reception / delivery processing method of the present invention is applied to an image data distribution server will be described. In the image data distribution, the still image data and the moving image data acquired by the terminal at the site are distributed to the client.

The function interfaces disclosed by each function module are as follows.

(11) Function interface of terminal communication function module • Still image data distribution request • Moving image data distribution start request • Moving image data distribution stop request (12) Function interface of client communication function module • Still image data distribution request Moving image data distribution request (13) Function interface of database communication function module-Still image data accumulation request-Still image data acquisition request-Moving image data accumulation request-Moving image data acquisition request (14) Function interface of server control function module Still image data distribution request (for client)-Still image data distribution request (for terminal)-Moving image data distribution request (for terminal)-Moving image data distribution start request (for client)-Moving image data distribution stop request (for client)・ Still image data Storage start request (for client)-Still image data storage stop request (for client)-Moving image data storage start request (for client)-Moving image data storage stop request (for client)-Still image data acquisition request (for client) Moving Image Data Acquisition Request (for Client) As an example of the operation of the image data distribution server constituted by the functional modules having the various interfaces described above, the flow of processing of a still image data distribution request from a client will be described below.

(S11) A still image data distribution request is transmitted from the clients 2A and 2B to the client communication function modules 12A and 12B by a prescribed communication method.

(S12) The client communication function modules 12A and 12B request the still image data distribution to the server control function module 14 through the "static image data distribution request" function interface of the server control function module 14.

(S13) Server control function module 14
Requests the still image data distribution to the terminal communication function modules 11A and 11B via the "still image data distribution request" function interface.

(S14) Terminal communication function module 11
A and 11B transmit a still image data distribution request to the terminals 1A and 1B by a prescribed communication method.

(Embodiment 2) Audio Data Distribution Server An embodiment in which the reception / delivery processing method of the present invention is applied to an audio data distribution server will be described. In audio data distribution, audio data is mutually distributed between a site terminal and a client.

The function interfaces disclosed by each function module are as follows.

(11) Function interface of terminal communication function module ・ Request for starting voice data delivery ・ Request for stopping voice data delivery ・ Request for voice data delivery (12) Function interface of client communication function module ・ Request for starting voice data delivery ・ Voice data delivery Stop request • Voice data distribution request (13) Function interface of database communication function module • Voice data storage start request • Voice data storage stop request • Voice data acquisition request (14) Function interface of server control function module • Voice data distribution start request (For terminal)-Audio data distribution stop request (for terminal)-Audio data distribution request (for terminal)-Audio data distribution start request (for client)-Audio data distribution stop request (for client)-Audio data distribution request (for client) for) -Voice data writing start request (for client)-Voice data storage stop request (for client)-Voice data acquisition request (for client) Example of operation of voice data distribution server composed of functional modules having the above various interfaces The processing flow of the audio data distribution start request from the terminal will be described below.

(S21) The terminal 1A, 1B transmits a voice data distribution start request to the terminal communication function module 11A, 11B by a prescribed communication method.

(S22) Terminal communication function module 11
A and 11B request the start of audio data distribution to the module via the "audio data distribution start request" function interface of the server control function module 14.

(S23) Server control function module 14
Requests the start of voice data distribution to the client communication function modules 12A and 12B via the "voice data distribution start request" function interface.

(S24) The client communication function modules 12A and 12B transmit an audio data distribution start request to the clients 1A and 1B by a prescribed communication method.

(Embodiment 3) Sensor Data Distribution Server An embodiment in which the processing method of the present invention is applied to a sensor data distribution server will be described. In the sensor data distribution, the sensor data obtained by the terminal at the site is distributed to the client.

The function interfaces disclosed by each function module are as follows.

(11) Function interface of terminal communication function module-Sensor data distribution request (12) Function interface of client communication function module-None (13) Function interface of database communication function module-Sensor data storage request-Sensor data acquisition request (14) Function interface of server control function module ・ Sensor data distribution request (for client) ・ Sensor data distribution request (for terminal) ・ Sensor data accumulation start request (for client) ・ Sensor data accumulation stop request (for client) As an operation example of the sensor data distribution server configured by each functional module having an interface,
The flow of processing of a sensor data transmission request from a client is described below.

(S31) A sensor data distribution request is transmitted from the clients 2A and 2B to the client communication function modules 12A and 12B by a prescribed communication method.

(S32) The client communication function modules 12A and 12B are connected to the server control function module 14 by the "sensor data distribution request" function interface.
Requests the module to distribute sensor data.

(S33) Server control function module 14
Requests the sensor data distribution to the terminal communication function modules 11A and 11B via the "sensor data distribution request" function interface.

(S34) Terminal communication function module 11
A and 11B transmit a sensor data distribution request to the terminals 1A and 1B by a prescribed communication method.

[0056]

As described above, according to the present invention, as a distribution server configuration, a terminal communication function module for managing communication with a terminal, a client communication function module for managing communication with a client, and communication with a database are managed. The database communication function module and the server control function module that manages and controls each communication function module are separated and configured for each function module, and the terminal function module, client communication function module, and database communication function module communicate with the target terminal, client, and database. The specifications are compatible with the system and type, and the server control module has a common specification.
Server changes due to client / database additions / changes add only corresponding communication function modules.
Since it is only necessary to make changes, only the minimum required modules are developed for each individual system project, so that development efficiency is increased and development costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a module configuration of a distribution server according to an embodiment of the present invention.

FIG. 2 is a configuration example of a terminal data reception / delivery system.

FIG. 3 is an explanatory diagram of a data reception / delivery operation from a terminal in response to a request from a client in FIG. 2;

FIG. 4 is an explanatory diagram of a data reception / delivery operation by a data transmission event from a terminal in FIG. 2;

FIG. 5 is an explanatory diagram of an operation of receiving and delivering data from a database in response to a request from a client in FIG. 2;

[Explanation of symbols]

 1A, 1B, 1C Information collecting terminal 2A, 2B, 2C Client 3, 10, Distribution server 4 Database 11A, 11B Terminal communication function module 12A, 12B Client communication function module 13, Database communication function module 14, Server Control function module

Claims (7)

[Claims] 1. A distribution server and a database connected to a plurality of information collection terminals and a plurality of clients via a communication network to receive and distribute terminal data for distributing data transmitted from the information collection terminals to the clients. In the system, the distribution server, a terminal communication function module that manages communication corresponding to the communication method and type of each information collection terminal, and a client communication function module that manages communication corresponding to the communication method and type of each client, A terminal data receiving / distributing system, comprising: a database communication function module that manages communication corresponding to a communication method and a type of the database; and a server control function module that manages and controls each communication function module. 2. The terminal communication function module implements a communication function with the information collection terminal, and discloses a common interface independent of the information collection terminal or its communication method to the server control function module. The terminal data receiving / distributing system according to claim 1, wherein 3. The client communication function module implements a communication function with the client and discloses a common interface independent of the client or its communication method to the server control function module. 2. A terminal data receiving / delivery system according to claim 1. 4. The server communication module according to claim 1, wherein the database communication function module implements a communication function with the database and discloses a common interface independent of the database or its communication method to the server control function module. 2. A terminal data receiving / delivery system according to claim 1. 5. A still image data distribution request is transmitted from the client to the client communication function module according to a prescribed communication method, and the client communication function module performs a “still image data distribution request” function of the server control function module. The interface requests the module to distribute still image data, and the server control function module requests the module to distribute still image data by using the “still image data distribution request” function interface of the terminal communication function module. The terminal communication function module according to any one of claims 1 to 4, wherein the terminal communication function module transmits a still image data distribution request to the information collection terminal by a prescribed communication method. Delivery system. 6. An audio data distribution start request is transmitted from the information collection terminal to the terminal communication function module according to a prescribed communication method, and the terminal communication function module transmits a voice data distribution start request of the server control function module. The server control function module requests the module to start the distribution of the audio data by the “functional interface”, and the server control function module starts the distribution of the audio data to the module by the “voice data distribution start request” function interface of the client communication function module. The client communication function module transmits a voice data distribution start request to the client according to a prescribed communication method.
The terminal data receiving / distributing system according to the section. 7. A sensor data distribution request is transmitted from the client to the client communication function module according to a prescribed communication method, and the client communication function module transmits the sensor data distribution request through a “sensor data distribution request” function interface of the server control function module. Requesting distribution of sensor data to the module, the server control function module requests distribution of sensor data to the module by a “sensor data distribution request” function interface of the terminal communication function module, The terminal data reception / delivery system according to any one of claims 1 to 4, wherein the function module transmits a sensor data distribution request to the information collection terminal by a prescribed communication method.