JPS5831437A - Data receiver - Google Patents

Abstract

PURPOSE:To remove the necessity of installation of plural remote terminals by increasing the capacity of a receiving buffer for temprally storing data sent from a computer system and dividing the receiving buffer into an optional size to use the buffer according to purposes. CONSTITUTION:A data receiving device 20 is connected to system centers 10a, 10b- provided with computer systems 1a, 1b- through transmission lines L to receive data. MODEMs 2, 12 convert data into signals for communication lines or these signals into data reversively. A data reception listing device 3 in the data receiving device 20 is provided with a large capacity of receiving buffer for temporally storing data from the computer systems 1a, 1b- and the receiving buffer is used by dividing it into an optional size.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data receiving device, and more particularly to a data receiving device suitable for performing output operations such as tabulation based on data received from a computer.

Generally, when a data receiving tabulation device is used at the same installation location to receive data from multiple computers, a data receiving device having a configuration as shown in the block diagram of FIG. 1 has been used. In the figure, 10ae and 10b- are computer systems lse 1b, w* and computer systems la, respectively.
Transmission path for data from lb, -! A system consisting of a modem 2 for sending data from the transmission path 2 to a modem 2 and a data reception tabulation device 3at and 3bt for tabulating the data from the modem and a modem n for receiving data from the transmission path 2.
This is a data receiving device consisting of -.

Figure 2 shows the data reception tabulation devices 3 to 3b- shown in Figure 1.
In this figure, 4 is an interface with the modem school, 5 is a data reception control unit for the transmission line, 7 is a data transmission control unit for the transmission line, and 6 is a temporary storage for the received data. 8 is a rounded output control device that sends data to an output device 9.

In such a configuration, the nine data sent from each system sensor I to the transmission path are taken into each corresponding data reception tabulation device 31s'b- in the data reception device m, and each data reception In tabulation device 8&*sb, interface 4. The reception buffer 7 via the reception control unit 5
6 has completely changed data! 111, and then the output control section 8
The data is sent to an output device 9 such as a printer via the printer.

By the way, in a data receiving device as shown in FIG. 1, it is common to provide a data receiving tabulation device f3a*3mm depending on the number of computer systems 1aelb..., but this requires a large installation space. Moreover, the introduction cost becomes high.

On the other hand, data reception tabulation f3a, 311 ・
It is possible to consider a method that would allow communication with multiple computer systems (la, lb), but since it is not possible to divide the receive buffer into 60 sections, it is possible to receive data from a certain computer system and send it to the output device. There is a problem that data cannot be received from other computer systems until it is output to PC 9. Therefore, if data is sent out from multiple computer systems at approximately the same time, one Data transmission processing for other computer systems other than the computer system must be delayed until the data reception tabulation device finishes receiving data from one computer system and tabulation. If you use the Kainan communication line without stopping, the usage fee will increase depending on the usage time.
Running costs also become something that cannot be ignored.

Furthermore, if the data landscape sent from the computer system changes, the size of the receive buffer assigned to each computer system is fixed and the hardware and software of the receiving tabulation device must be changed each time. There is a need.

Therefore, an object of the present invention is to increase the capacity of a reception buffer that temporarily stores data sent from a computer system, and at the same time, to enable connection with multiple computer systems by making it possible to divide the data into arbitrary sizes. An object of the present invention is to provide a data receiving device that can easily change the amount of data transmitted from a computer system even if it changes.

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

FIG. 3 is a block diagram of a data receiving device according to an embodiment of the present invention. In the figure, 3 is arranged in the data receiving device z so that it can be connected to a plurality of computer systems fat 1m-. via a modem ν. This is a data receiving tabulation device.

FIG. 4 is a block diagram showing the internal configuration of the data reception tabulation device 3 shown in FIG.
, modem 1 connected to the transmission path from job...
The reception control unit %17 takes in the signal received at the interface 4 via the interface 4, and the reception control unit %17 performs transmission control to send data to the transmission path to the system center 10m, 10'b...K via the interface 4 and the modem. 16 is a large-capacity reception buffer, 18 is an output control unit that sends data from the reception buffer 16 to the output device 9 ((()) is a reception buffer 7 division setting unit that divides the reception buffer 16, and 11 is a reception buffer 7 division setting unit that divides the reception buffer 16. The output order in which the output order of data from the reception buffer 16 is written is V star.

As is clear from FIGS. 3 and 4, the data receiving device is connected to the system center 10a*1Ob . . . having a computer system 1111- through a transmission path, and receives data therefrom. Note that modems 2. L2 has the function of converting data into a signal for debt collection, and conversely converting this into data. In the data receiving device, the data received at each dem 12 is input to the data receiving tabulation device I, but the input data is first converted from serial data to parallel data at the inter 7 em. undergoes interface processing. The data from the interface 4 is input to the reception control section 15, where reception processing such as sign verification is performed, and retransmission requests and reception responses are sent from the transmission control section 17 to the interface 4. It is sent to transmission line 1 via a modem. On the other hand, the received data is stored in the address after the address set by the reception buffer division setting unit (part), and at the same time, the output order of the data is written in the output order register 11.

Note that the output control unit 18 outputs the data stored in the reception buffer 16 to the output device 9 in accordance with the contents of the output order. The output device 9 supplied with the data
Output operations such as printing and display will be performed in the evening.

In addition, as shown in the explanatory diagram of FIG. 6, the reception buffer 16 is
The storage address for received data is assigned to each corresponding system center 1oas 10b.
Area 1(1) from address O to address m(1) for the system center 10&, area depth from address n(1)+1 to address n(2) t for the second 7 stem center 10 (2) Also, for the Peng-th system center (not shown), area I(,) from address i(n(w-1) to address 11(t) is assigned. Note that the first address of each area The reception buffer division setting unit I arbitrarily specifies the buffer division setting unit I, and the order in which data is read by the output control function is the output order and is specified by the V meta 11.

After the output of the data in the reception buffer 16 to the output device 9 is finished, the output control unit 18 erases the data in the corresponding area in the reception buffer 16 and prepares the contents of the output order register 110 for the next reading. shift.

According to the configuration of the above-described embodiment, it is difficult for a conventional data communication device to simultaneously communicate with multiple computers and output them simultaneously because the size of the receiving buffer is small and the area is one. Instead of having to wait for one computer's communication to end before moving on to the next communication, or have multiple receiving systems, the receive buffer has a large capacity and can be divided into areas for the number of computers communicating. By providing this and the division setting section, it becomes possible to communicate with a plurality of computer systems at the same time.

On the other hand, by installing an output order register that sets the output order of the data area of the receive buffer, the receive control operation,
Regardless of data communication, data stored in the receive buffer can be sent to an output device.

Furthermore, if the amount of data sent from the computer increases,
Whereas in the past it was necessary to change both hardware and software, according to the reception control device of the present invention, the size of each area of the reception buffer can be easily changed by operating the reception buffer division setting section O. 4 hours that can be easily handled
There is O″e.

In addition, in the above-mentioned embodiment, the case where the reception packer division setting - is provided in the rounding of the area setting of the reception buffer was described as an example i17, but if the reception control section is configured with four micro processors, etc. Information for dividing into areas may be stored in a ROM (read only memory) and configured to correspond to fixed sizes.
In this case, each area size and address can be changed by rewriting the ROM.

On the other hand, the reception control device of the present invention is applicable not only to multiple computer systems, but also to systems where data is sent from a single computer system at a rate faster than the output speed of an output device, concentrated at a certain time. can also be effectively adapted. In this case, the reception buffer may be divided into the number of data groups that are sent in a certain time period, and the output order register may be used to store the numbers of the data groups. By configuring such a system, the time required for data communication as a computer system is not the time required for each data receiving device on the remote side to output data to the output device, but the time required for data to be stored in the reception buffer. This time can be significantly shortened. In addition, when considering such an application, there is no particular need for a division setting section for the reception buffer, and the ridge buffer can be equally divided into multiple areas, or divided according to the size of each data group sent from the computer. I can do it.

As described above, according to the present invention, when receiving data sent from multiple computer systems, it is not necessary to install multiple remote terminals, thereby significantly reducing the installation space and power consumption of the device. Accordingly, it is possible to obtain a data receiving device that can reduce the amount of time required for data communication and also shorten the time required for data communication.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional data receiving device, FIG. 2 is a block diagram showing details of the data reception tabulation device of FIG. 1, and FIG. 3 is a block diagram of a data receiving device according to an embodiment of the present invention. Figure 184 is a block diagram showing details of the data reception tabulation device in Figure 3, and Figure 5 is an explanatory diagram of the data area O of the reception buffer in Figure 4. lap lb”・computer system, 10m, 10
b...System center, 2.12...Modem, ω・
...Data receiving device, 4...Interface, 15
... Reception wi control section, 16... Reception buffer, 17.
...Transmission control unit, 18...Output control unit, 11...Output order register, (capital)...Reception buffer setting unit,
9...Output device. Applicant's agent Kiyoshi Inomata

Claims (1)

[Claims] transmission line] reception control means for receiving a plurality of data groups; buffer means for storing the received data groups; means for specifying areas corresponding to each of the plurality of data groups in the buffer means; A data receiving device comprising output control means for reading and outputting a data group for each area of the buffer means.