JPH04246749A - Information transmission system utilizing function - Google Patents

Abstract

PURPOSE:To execute the transmission by the same interface irrespective of the contents of data and the data length, at the time of transmitting the information between different computers. CONSTITUTION:This system is constituted so that fixed length data 3 and variable length data 4 can be transmitted by small coding by connecting an information transmission side computer 1 having an information transmission part 7 of a function to a character-string consisting of a function which can specify transmission information and its argument, and an information receiving side computer 2 having an information receiving part 8 containing an interpreter which can analyze the specifiable function and its argument by a network line 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transmitting information between computers, and more particularly to a method for transmitting information at an interface between computers.

0002

2. Description of the Related Art Conventionally, in information transmission means between computers, the data length, field designation, and format of the information, which are the detailed contents of the information to be transmitted, are coded in advance in a hard image on the information transmission side computer. There is. Also, the information receiving computer performs the same coding as above in advance. FIG. 1 is a block diagram showing an example of data transmission from a transmitting computer to a database of a receiving computer. In the same figure, 1
is a transmitting computer, and 2 is a receiving computer. The transmission side computer 1 has a fixed length data table 3 and a variable length data table 4 to be transmitted, and is also provided with an information transmission section 7. Also, the receiving computer 2
has a first database 5 and a second database 6, and is provided with an information receiving section 8. The information transmitting section 7 and the information receiving section 8 are connected via a network line 9.

In this configuration, as shown in FIG.
Each data of the fixed length data table 3 and the variable length data table 4 is coded by the information transmission section 7, transmitted to the receiving side computer 2 through the network line 9, coded by the information receiving section 8, and transmitted to each of the first and second data tables. The information is stored in databases 5 and 6. At this time, the information transmission section 7
When coding the information receiving section 8, the fixed-length data table 3 and the variable-length data table 4 are required to have the data structure format shown in the figure.

0004

[Problems to be Solved by the Invention] In such conventional transmission systems, the fixed length data table 3 is a table that can be transmitted because the data length of the information is fixed, but the variable length data table 4 is a table that can be transmitted because the data length of the information is fixed. Since the data length is undefined, it is necessary to recompile the information transmitter 7 and the information receiver 8 according to the data length, which poses a problem in that the transmission becomes extremely difficult. Additionally, certain formats make it difficult to transmit data between different models due to differences in memory configuration, and each model requires unique processing to make this possible. Furthermore, when the fixed format is based on a memory image, it is necessary to define the format by hard coding, and it is necessary to recompile the program every time an interface is changed or added. SUMMARY OF THE INVENTION An object of the present invention is to provide an information transmission method that enables transmission between different types of devices and allows transmission using the same interface regardless of data content and data length.

[0005]

[Means for Solving the Problems] The information transmission system of the present invention includes an information transmission side computer having a function of converting transmission information into a character string consisting of an identifiable function and its arguments, and It consists of an information receiving computer with an interpreter that can analyze the information.

[0006]

[Operation] According to the present invention, the transmitting side converts it into a specifiable function and its arguments before transmitting it, and the receiving side analyzes this, thereby significantly reducing coding in the information transmitting section and the information receiving section. .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. The information transmitting section 7 of the information transmitting computer 1 shown in FIG. Provide an interpreter that can analyze. The information transmitting section 7 and the information receiving section 8 are connected through a network line 9, and the fixed length data table 3 and variable length data table 4 are transmitted from the information transmitting computer 1 to the information receiving computer 2. At this time, by converting the transmission information into a specific function and a variable length argument before transmission, recoding by the information transmission section 7 and the information reception section 8 due to the data length and field specification of the information is significantly reduced. Further, the information transmitting section 7 creates an interface message expressing a specific function and variable length arguments as a character string string, and transmits this as one packet.

FIG. 2 shows a format for transmitting the data. Except for the key information 11 for analyzing the data in FIG. 2, the field 12 and value 13 are variable length data, so there is no need to have the conventional data structure shown in FIG.

[0009]

[Effects of the Invention] As explained above, the present invention provides an interpreter that analyzes transmitted data as a function and its arguments without having a fixed data structure required for analyzing the contents of transmitted information. Since the data is analyzed using the same interface, porting to different types of computers is easy, and when performing the same processing on different types of data, the transmitted data can be analyzed using the same interface regardless of the content and data length of the transmitted data. It becomes possible to do so.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a transmission method to which the present invention is applied.

FIG. 2 is a format diagram in the transmission method of the present invention.

FIG. 3 is a format diagram in a conventional transmission method.

[Explanation of symbols]

1 Transmission side computer 2 Receiving side computer 3 Fixed length data table 4. Variable length data table 5 First database 6 Second database 7 Information transmission section 8 Information receiving section 9 Network line

Claims (1)

[Claims] Claim 1: In an information transmission system for network transmission and inter-process communication, an information transmission side computer has a function of converting transmitted information into a character string consisting of an identifiable function and its arguments, and 1. An information transmission method using a function, characterized in that it is configured with an information receiving computer having an interpreter capable of analyzing arguments.