JP2581004B2 - Network communication system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a plurality of terminals are connected to one parent terminal device, the parent terminal device extracts data from individual terminals for each terminal, and outputs a processing result corresponding to the data to each terminal. The present invention relates to a signal transmission terminal identification method used for identifying a terminal that has transmitted data in a network communication system represented by a LAN that returns data.

[0002]

2. Description of the Related Art Conventionally, a plurality of terminals are connected to one parent terminal device 4.
In the case of performing data exchange processing by connecting to 0 through a common line, each terminal 51 to 5n has a terminal-specific number (address A1 to An) as shown in FIG. This is the case where the terminal is fixedly assigned to the terminal from the beginning.
In some cases, as in the invention disclosed in Japanese Patent Publication No. 36853, the assignment is performed after the line is connected. In any case, when each terminal sends data to the parent terminal device 40, the address is added to the data. The parent terminal device 40
Can identify the terminal from which the received data is sent, and return the processing result to the terminal.

[0003]

In such a communication system, since a large number of terminals transmit data to a line having a limited capacity, it is necessary to increase a signal aggregation rate. However, in the conventional method, each data has an address that is not directly related to signal processing,
This is a major obstacle to increasing the signal aggregation rate.

[0004] In view of the above problems, it is an object of the present invention to provide a network communication system that transmits and receives data without constantly adding an address to the data and improves the signal aggregation rate.

[0005]

In a network communication system according to the present invention, a plurality of unspecified terminals are connected to a parent terminal via a common line, and the parent terminal transmits data of one terminal from among received signals. A network communication system typified by a LAN for extracting and processing and returning a processing result to a terminal, wherein the terminal adds a terminal-specific address to data to be sent to a parent terminal device only at the start of communication, and thereafter, Has a function of sending only data when sending data to the parent terminal, the parent terminal device is a data extraction device that extracts data for each terminal from data sent from the network, A pattern storage device for pre-registering and storing data patterns expected to come in, and a data actually transmitted from the terminal with the registered data patterns. A pattern identification device for comparing and identifying data patterns, an address storage device for storing the pattern number of the corresponding pattern and the address added to the data from the terminal together, and processing data from an individual terminal. If the address is added to the data, the processing result is returned to the terminal corresponding to the address. If the address is added only to the data, the processing result is stored in the address storage device together with the pattern number matching the data. And a processing device for receiving the address set from the address storage device and sending a processing result to the terminal of the address.

Preferably, the terminal can use a plurality of data patterns. Whenever the data pattern is changed, the terminal adds an address to the data at the start of communication and sends the data to the parent terminal device. The parent terminal device permits the same pattern to only one terminal.

[0007]

Each terminal transmits data with an address added only at the beginning of communication, and thereafter transmits only data without adding an address. The data sent from the terminal is compared with the data pattern stored in the pattern storage device in advance by the pattern identification device, and if it matches a certain pattern, the pattern number of that pattern is added together with the address added to the data. It is stored in the address storage device.

Next, when data to which no address is added is sent, the pattern identification device compares the data with each pattern in the pattern storage device and similarly assigns the pattern number of the matched pattern to the address storage device. send. The address storage device sends the stored address together with the transmitted pattern number to the processing device, and the processing device adds the address to the processing result for the data and returns the result to the terminal.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the network communication system of the present invention, and FIGS. 2 and 3 are block diagrams for explaining the operation of the embodiment of FIG. In addition, LAN
The means for extracting only data from a terminal on a network system such as the above is not directly related to the present invention, and is not described here because it is a known technique.
Only the processing method after the completion of data extraction from the terminal will be specifically described.

In this embodiment, a parent terminal device 10 and a plurality of terminals 21, 22, 2,
3,... And 2n. Each terminal 21, 22, 23,..., 2 n transmits data and initial information including an address unique to each terminal to the parent terminal device 10 at the start of terminal use, and thereafter transmits data not including an address. , Receives the result of data processing addressed to itself from the parent terminal device 10.

The parent terminal device 10 includes a pattern storage device 11
, Pattern identification device 12, address storage device 13
And a processing device 14. The pattern storage device 11 stores data patterns output by the terminals 21, 22, 23,..., And 2n, and pattern numbers assigned to the respective patterns. Pattern identification device 12
When inputting the initial information from the terminal, the device compares the pattern of the data included in the initial information with each pattern stored in the pattern storage device 11 and detects the pattern number of the matched pattern. The detected pattern number and the address included in the initial information are stored as a pair in the address storage device 13, and the initial information is passed to the processing device.

The pattern identification device 12 inputs data to which a subsequently transmitted address is not added, compares the pattern of the input data with each pattern stored in the pattern storage device 11, and finds a match. The pattern number of the pattern is sent to the address storage device 13, the address paired with the sent pattern number is output to the processing device 14, and the input data is passed to the processing device 14. The processing device 14 processes the data of the initial information passed from the pattern identification device 12 and the subsequent data, and stores the address of the initial information passed from the pattern identification device 12 and the address passed from the address storage device 13 into the data. It is added to the processed result and sent to the terminal.

Next, a specific operation example of the embodiment of FIG. 1 will be described with reference to FIGS. Here, a case will be described in which data having pattern P3 is transmitted from terminal 1, but the same applies to other terminals and other patterns.

First, as shown in FIG. 2, the terminal 1 sends to the pattern identification device 12 initial information obtained by adding the address A1 of the terminal 1 to the data of the pattern P3. The pattern identification device 12 compares the pattern P3 of the data included in the initial information with each of the patterns P1 to Pm stored in the pattern storage device 11. The pattern P3 of the data included in the initial information is the pattern P3 of the pattern storage device 11.
3, the pattern identification device 12 determines the pattern number B corresponding to the pattern P3 in the pattern storage device 11.
3 and the address A1 added to the data are sent to the address storage device 13 as a pair and stored.

[0015] Next, as shown in FIG.
Is sent to the pattern identification device 12 without an address. Upon receipt of this, the pattern identification device 12 compares the data with the patterns P1 to Pm stored in the pattern storage device 11 as in the case of FIG. Since no address is added to the data, the pattern identification device 12 sends only the pattern number B3 of P3 to the address storage device 13 and sends the data to the processing device 14. The address storage device 13 having received only the pattern number B3 searches for the pattern number B3 from the stored pattern numbers, and sends the address A1 stored in pairs with the pattern number B3 to the processing device 14. The processing device 14 receiving the address A1 adds the address A1 to the result of processing the data received from the pattern identification device 12, and sends the result to the terminal 1.

As described above, in this system, the parent terminal device 10
However, once the data pattern sent from the terminal and the address added to it are stored once, as long as the same terminal sends the same pattern data, the parent terminal that processes the data without adding an address to the data The apparatus can identify the sending terminal from the pattern of the sent data and send the processing result.

When a terminal to be used is changed, or when data of a different pattern is transmitted from the same terminal, it is necessary to send initial information in which an address is added to the data to the parent terminal device 10 again. Examples of different data patterns from each terminal include a case where the terminal 21 handles a word processor, a terminal 22 handles a programming language, and a terminal 23 handles game software. That is, since different applications have different data patterns, that is, different format formats, the parent terminal device 1
A value of 0 can determine the data sent from each of the terminals 21, 22, and 23 from the difference in the format.

[0018]

As described above, according to the present invention, it is not necessary to always add an address to data transmitted from a terminal to a parent terminal device which is a data processing device. Can also be used to send data, which has the effect of improving the line aggregation rate.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a network communication system according to the present invention.

FIG. 2 is a diagram illustrating signal processing of each unit of a parent terminal device when an address is added to data from a terminal (start of use of the terminal) in the embodiment of FIG. 1;

FIG. 3 is a diagram showing signal processing of each unit of a parent terminal device when an address is not added to data from a terminal in the embodiment of FIG. 1;

FIG. 4 is a block diagram showing a conventional example.

[Explanation of symbols]

 Reference Signs List 10 parent terminal device 11 pattern storage device 12 pattern identification device 13 address storage device 14 processing device 21-2n terminal P1-Pm data pattern B1-Bm pattern number

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Mariko Mori 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (72) Inventor Takemasa Takahashi 5-7-1 Shiba, Minato-ku, Tokyo NEC Incorporated (72) Inventor Hiroyuki Sato 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (72) Inventor ▲ Yoshi ▼ Chizuko 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation In-company (72) Inventor Hiromi Atsuta 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (56) References JP-A-1-300629 (JP, A) JP-A-61-224634 (JP, A) Actual opening 1980-95394 (JP, U)

Claims (2)

(57) [Claims] A plurality of unspecified terminals are connected to a parent terminal device via a common line, and the parent terminal device extracts data of one terminal from a received signal, processes the data, and returns a processing result to the terminal. In a network communication system represented by a LAN, the terminal adds a terminal-specific address to data to be transmitted to a parent terminal only at the start of communication, and transmits only data when transmitting data to the parent terminal thereafter. The parent terminal device has a data extraction device that extracts data for each terminal from data transmitted from the network, and a data pattern that is presumed to be transmitted from the terminal. A pattern storage device for storing, and a pattern identification device for identifying by comparing the registered data pattern with a pattern of data actually transmitted from the terminal. An address storage device that stores the pattern number of the corresponding pattern and the address added to the data from the terminal together, and processes the data from the individual terminal, and if an address is added to the data, The processing result is returned to the corresponding terminal, and if the address is added only with the data, the address stored in the address storage device is received from the address storage device together with the pattern number corresponding to the data, and the address is received. And a processing device for sending a processing result to the terminal. 2. The terminal can use a plurality of data patterns. Whenever the data pattern is changed, the terminal adds an address to the data at the start of communication and sends it to the parent terminal device, 2. The network communication system according to claim 1, wherein the parent terminal device permits the same pattern to only one terminal.