JPH0697936A - Data transmission system using radio communication - Google Patents

Abstract

PURPOSE:To obtain the data transmission system using a radio communication, which can improve the throughput without considering a difference to a full duplex line in spite of the particularity of a bidirectional simplex communication line. CONSTITUTION:The data transmission system by a radio communication connects a host computer side system 11 and a terminal 13 by a bidirectional simplex communication line through a gateway 12. The gateway 12 generates a menu screen for inputting and guiding the information required for calling originally the host computer side system 11 by the terminal 13, and also, has a means for downloading it automatically to the terminal 13, and the terminal 13 has a menu processing means for executing an input processing based on the menu screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal data transmission system in which a host computer system and a wireless terminal are connected by a bidirectional simplex communication line via a gateway.

[0002]

2. Description of the Related Art In recent years, data communication technology has been dramatically improved, and a local area network (LAN) system or the like has been used as a communication network in a limited area for office automation, factory automation, or Introduction is rapidly increasing as data communication for databases. In such a data communication system, bidirectional data communication has become possible, for example, by connecting a mobile wireless communication terminal to the line.

By the way, a conventional teletypewriter (TT
Y) When a terminal such as a terminal or an ASCII terminal that is connected to a full-duplex line such as a LAN system including a host computer is connected to a bidirectional simplex wireless communication line, a specific character code is used. The data is transmitted after the data length or the time elapsed until the next data, and the transmission right is transferred to the other party. That is, in a case where a switching center switches a transmission line, such as a tele-terminal radio or a multi-channel access (MAC) radio, since the overhead of the transmission line itself is required for control, the switching itself takes a very long time. . For example, in a wired system, switching is instantaneously performed only with software overhead,
With the tele-terminal radio, it took about 2 seconds to switch once.

[0004]

Therefore, if the communication system of the conventional terminal is brought in as it is, in the communication system assuming that it is a full-duplex line, the phenomenon of delegating the transmission right of the simplex system is generated. Since the transmission right is transferred unnecessarily, it takes time to switch,
In addition, the load and traffic volume on the host computer side may increase, and the overall throughput may decrease.

Therefore, the present invention provides a data transmission system by radio communication capable of improving the throughput without being aware of the difference from the full-duplex line, despite the peculiarity of the bidirectional simplex communication line. The purpose is to provide.

[0006]

In order to achieve the above object, a data transmission system by wireless communication according to the present invention uses a bidirectional simplex communication line between a host computer system and a terminal via a gateway. In the connected data transmission system by wireless communication, the gateway creates a menu screen for inputting information necessary for the terminal to call the host computer side system, and automatically downloads to the terminal. And the terminal has menu processing means for performing input processing based on the menu screen.

[0007]

According to the present invention, the gateway creates the information necessary for calling the host computer side system as a menu screen definition, downloads it all at once to the terminal, and the menu means of the terminal creates the information based on the menu screen. Since the input processing is performed by using the input processing, the business processing can be performed without excessively using the transmission, the load on the host computer side and the traffic amount can be reduced, and the throughput is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the drawings. FIG. 1 is a diagram for explaining the basic configuration of a data transmission system by wireless communication according to an embodiment of the present invention.

In the figure, in the data transmission system of this embodiment, a terminal 13 by wireless communication is connected to a host computer side system 11 of a full duplex line via a gateway 12 by a bidirectional simplex communication line. Is configured. The gateway 12 creates a menu screen for inputting and guiding information necessary for the terminal 13 to independently call the host computer side system 11, and automatically downloads the menu screen to the terminal 13 and the host computer side system 11 And means 15 for controlling bidirectional simplex communication between the terminal and the terminal 13. In addition, the terminal 13 can be directly connected to the host computer system 11 of the full duplex line and can be used as a mobile terminal or the like by wireless communication.
It has means 16 for performing input processing such as selection of business and input of necessary parameters based on the menu screen downloaded from, and means 17 for controlling bidirectional simplex communication with the gateway 12.

FIG. 2 is a diagram for explaining the overall configuration of a data transmission system by wireless communication according to the embodiment of the present invention. In addition,
The parts corresponding to those in FIG. 1 are designated by the same reference numerals.

In FIG. 1, the data transmission system of the present embodiment is a more specific description of the overall configuration based on the above basic configuration. The host computer side system 11 is provided, for example, in an office or the like. A LAN system 21 that is connected to a mainframe 22 that processes a large amount of data and constitutes a host computer that is the center of the LAN system 21, and a workstation 23 that performs various atypical work, and that is used for wireless communication. A notebook personal computer (so-called notebook personal computer) 24, which is also a terminal and is convenient for carrying, is connected. Then, the LAN system 21 is connected via a gateway 12 to a notebook computer 13 (24) which is a terminal by wireless communication by a bidirectional simplex communication line. The notebook computer 13 (24) is equipped with a wireless transceiver (not shown) as a mobile wireless terminal.

FIG. 3 is a diagram for explaining the configuration of the gateway according to the embodiment of the present invention.

In FIG. 1, a gateway 12 is an operating system 31, which is basic software for controlling execution of computer programs, and a terminal interface function for interconnecting the host computer side system 11 and the terminal 13. 32, terminal menu screen definition function 33, menu I / F (interface)
Function 34, setup function 35 for preparing line control information, display control information, etc., frame control function 36 for converting data into a communication frame, bidirectional simplex communication function for controlling bidirectional simplex communication with the terminal 13. Has 37 etc.

Here, the terminal menu screen definition function 33
Is a function for defining a menu screen for inputting information required for the terminal 13 to call the host computer system 11 by itself, and an input linkage for outputting the screen definition and the format of input / output data with the system. Has a format output function. The screen definition is, for example, interactively defining a screen of 80 columns × 24 lines with a full screen image, and a screen hierarchy definition such as a relation between screens and a fixed screen definition such as coordinates, character strings, and attributes. Supports definition of online fields such as coordinates, lengths, character attributes, attributes, editing conditions, online data interface conditions, input acceptability, rationality conditions, and input fields such as calling interface conditions and decision interface conditions Pop-up menu definition which is the defined menu definition, help screen definition such as window size and items, execution definition such as output interface condition (editing condition, start condition) and response interface condition (editing condition, start condition) Including and

Further, the menu I / F function 34 is a menu management function, which manages the version of the menu function changed, and has a version management function having a download function for downloading the latest version when a use request is made from the terminal 13. It also includes a user management function that is a function of limiting terminals.

FIG. 4 is a diagram for explaining the configuration of the terminal according to the embodiment of the present invention.

In the figure, the terminal 13 has a bidirectional simplex communication function 4 for controlling bidirectional simplex communication with the operating system 41, which is basic software for controlling execution of computer programs, and the gateway 12.
2. Frame control function 43 for converting data into communication frames, terminal functions 44 and 45, menu function 46, user interface 47, commercially available application
It has software 48 and the like.

Here, the menu function is the gateway 1
This is a function to record the latest version downloaded from the 2 side in a file, display it on the screen read from the file at the time of starting the business, and perform input processing based on the menu screen. The terminal function 44 is a terminal interface used for a bidirectional simplex communication line during wireless communication, and the terminal function 45 is a terminal interface used for a full duplex line of the system 11.

FIG. 5 is a diagram for explaining an image of a business processing configuration in the bidirectional simplex communication line according to the embodiment of the present invention.

In the figure, when the terminal 13 is connected to the system 11 via the gateway 12 as a wireless communication terminal, a user interface 48 including commercial application software of the terminal 13, a menu function 46, a terminal interface 44, Based on the bidirectional simplex communication function 42, the gateway 12 is connected to the system 11 via the bidirectional simplex communication function 37, the menu I / F function 34, and the terminal I / F function 32. That is, the peculiarity of the bidirectional simplex communication line between the gateway 12 and the terminal 13 is absorbed.

FIG. 6 is a diagram for explaining an image of a business processing configuration in the full-duplex communication line according to the embodiment of the present invention.

In the figure, when the terminal 13 is connected to the system 11 such as the LAN system in the office of the full duplex communication line, the user interface 4 of the terminal 13 is used.
8, a menu function 46, and a wired terminal function (interface) 45 are directly connected to the system 11. That is, the terminal 13 uses the full duplex line for the system 11
Connected to.

Next, the operation of the data transmission system by radio communication having the above configuration will be described. 7 and 8 are flowcharts for explaining an example of business processing according to the embodiment of the present invention.

In these figures, first, the user on the side of the wireless communication terminal 13 inputs the identification number (ID #) of the user from an input device such as a notebook computer, and
Accessing the system 11 is started by inputting the password. As a result, the gateway 12 side performs a safety check by the menu management process, disconnects the line when negative (NG), and when the positive (OK), the menu definition of the terminal 13 is the latest version. Whether or not the version is checked.
When the version is not the latest version (NG), the gateway 12 automatically downloads (sends) the menu definition file based on the menu management function. The terminal 13 stores the menu definition downloaded from the gateway 12 in a file. When the version is the latest (OK), the bidirectional simplex communication line between the terminal 13 and the gateway 12 is the gateway 1.
2 and the system 11 are connected by a full duplex line, and a business menu screen is displayed on the screen of the terminal 13. This work menu screen is a menu screen for inputting and guiding information necessary for the terminal 13 to call the system 11. For example, the item number and the work content are 1. Balance inquiry,
2. It is displayed like ....

Next, the user selects a task based on the menu screen displayed on the terminal 13, inputs necessary parameters, and partially checks the rationality, and then presses the execution key. Press down. As a result, the information and input parameters stored in the menu definition file corresponding to the job selected by the terminal 13 are transmitted to the gateway 12 via the two-way simplex communication line, and further, from the gateway 12 to the full duplex line system 11. Is transmitted to the terminal 13 via the gateway 12 and the processing result is processed by the host computer.
And is stored in the result file of the terminal 13. Next, on the terminal 13, the commercial application software 4
The operation of No. 8 is started, and necessary processing is performed by the operator processing. When finished, the first job menu screen is displayed by automatic activation, and communication with the system 11 becomes possible again by the same operation.

According to the wireless data transmission system having the above configuration, the gateway 12 has a terminal menu screen defining function for creating a menu screen for inputting information required for the terminal 13 to call the system 11 by itself, and a terminal menu screen defining function. 13 has a menu management function for performing a version check at the time of use request and automatically downloading the latest version, and the terminal 13 has a menu processing means for performing an input process based on the menu screen, so that the bidirectional single The peculiarity such as delegation of transmission right of the communication line is absorbed between the gateway 12 and the terminal 13, and the data communication between the terminal 13 and the system 11 can be performed without making the user aware of the difference from the full-duplex line. . In addition, even if the terminal 13 can work independently without communicating with the host computer, for example, tasks such as inputting search conditions are downloaded to the terminal 13 in advance, and a terminal system in which unnecessary communication is eliminated is provided. It can be realized and the load on the host computer side can be reduced, the efficiency of the processing amount can be improved, and the traffic amount can be reduced. Further, the user realizes the function only by inputting the necessary information by selecting the menu, and it becomes unnecessary to input the command for a long time, and the operation becomes easy. It is possible to achieve independence from the data processing unit by realizing a data exchange by passing files with commercially available application software and setting a clear line. In addition, when changing the function, it is processed only by changing the terminal menu screen definition, and the efficiency of function promotion can be improved. Further, in the present embodiment, the user of the terminal 13 can realize the business by using the same interface by connecting to the system 11 with the connection device after returning to the office.

In the above embodiment, the LAN in the office or the like is used.
The example in which the notebook computer 24, which is a wireless communication terminal, is connected to the system 21 via the gateway 12 has been described. However, at least the host computer system 11 of the full duplex line is connected to the wireless communication terminal 13 via the gateway 12. The present invention is applied to those that connect with a two-way simplex communication line, and the type of terminal is not limited to the implementation.

[0028]

As described in detail above, according to the present invention, the gateway creates the information necessary for calling the host computer side system as a menu screen definition, and downloads it to the terminal all at once. Since input processing is performed on the menu screen of the terminal based on the menu screen, business processing can be performed without unnecessary use of transmission, the load and traffic volume on the host computer side can be reduced, and the throughput can be improved. is there.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a basic configuration of a data transmission system by wireless communication according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an overall configuration of a data transmission system by wireless communication according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration of a gateway according to the embodiment of this invention.

FIG. 4 is a diagram illustrating a configuration of a terminal according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating an image of a business processing configuration in a bidirectional simplex communication line according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating an image of a business processing configuration in a full-duplex communication line according to the embodiment of this invention.

FIG. 7 is a flowchart illustrating an example of business processing according to the embodiment of the present invention.

FIG. 8 is a flowchart illustrating an example of business processing according to the embodiment of this invention.

[Explanation of symbols]

 11 Host / Computer Side System 12 Gateway 13 Terminal 14 Terminal Menu Screen Definition and Downloading Means 15 Two-way Simplex Communication Control Means 16 Menu Function and Input Processing Means 14 Two-way Simplex Communication Control Means 21 LAN System 22 Mainframe 23 Workstations 24 notebook computer 32 terminal interface function 33 terminal menu screen definition 34 menu I / F function 35 setup function 36 frame control function 37 bidirectional simplex communication control function 42 bidirectional simplex communication control function 43 frame control function 44 terminal function 45 Terminal function 46 Menu function 47 User interface 48 Commercial application software

Claims (1)

[Claims] 1. A data transmission system by wireless communication in which a host computer side system and a terminal are connected by a bidirectional simplex communication line via a gateway, wherein the gateway is the host computer side independently of the terminal. It has means for creating a menu screen for guiding input of information necessary for calling the system and automatically downloading it to the terminal, and the terminal has menu processing means for performing input processing based on the menu screen. A data transmission system by wireless communication characterized by the following.