Data transmission method and device of instrument subordinate computer

A data transmission method and the technology of the lower computer, which are applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problems of inconsistent requirements of the lower computer of the instrument

Active Publication Date: 2020-08-28
SHANGHAI YINUO INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a data transmission method and device for an instrument lower computer to more effectively solve the problem that the protocol content of the instrument lower computer does not match the field protocol requirements

Method used

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  • Data transmission method and device of instrument subordinate computer
  • Data transmission method and device of instrument subordinate computer
  • Data transmission method and device of instrument subordinate computer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 It is a flow chart of a data transmission method for an instrument lower computer provided by Embodiment 1 of the present invention. This embodiment is applicable to the technical field of industrial instrument communication, and the method can be executed by a data transmission device of an instrument lower computer. The device can It is realized by means of hardware and / or software, and can usually be integrated into any lower computer of the instrument. The method includes:

[0040] Step 110, numbering the data with independent physical meaning in the storage space of each lower computer;

[0041] Among them, the data with independent physical meaning is stored in the storage space of the lower computer of the meter according to the data storage protocol of the lower computer of the meter, and can be identified and extracted separately. By numbering the data with independent physical meaning, it is convenient for further manipulation of the data. The numbe...

Embodiment 2

[0052] figure 2 It is a flow chart of a data transmission method for a lower computer of an instrument provided by Embodiment 2 of the present invention. On the basis of the above embodiment, this embodiment preferably further stores the communication data in the upper computer in the lower computer to be read. Before the space, it also includes adjusting the data format of the communication data of the lower computer according to the communication protocol requirements of the upper computer. The method specifically includes:

[0053]Step 210, numbering the data with independent physical meaning in the storage space of each lower computer;

[0054] Step 220, according to the communication protocol requirements of the host computer, select the content of each data, and select the data to be transmitted;

[0055] Step 230, according to the communication protocol requirements of the host computer, adjust the sequence of the data to generate communication data;

[0056] Step 2...

Embodiment 3

[0062] image 3 It is a flow chart of a data transmission method for a lower computer of an instrument provided by Embodiment 3 of the present invention. On the basis of the above embodiments, this embodiment preferably further stores the communication data in the upper computer in the lower computer. Before reading the space, it also includes determining the space to be read by the upper computer in the register of the lower computer according to the communication protocol requirements of the upper computer.

[0063] The method specifically includes:

[0064] Step 310, numbering the data with independent physical meaning in the storage space of each lower computer;

[0065] Step 320, according to the communication protocol requirements of the host computer, select the content of each data, and select the data to be transmitted;

[0066] Step 330, according to the communication protocol requirements of the current host computer, adjust the sequence of the data to generate co...

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Abstract

The invention discloses a data transmission method and device for an instrument lower computer. The method comprises the steps of numbering data with independent physical meanings in each lower computer storage space; selecting the content of the data according to communication protocol demands of an upper computer and selecting the data needing to be transmitted; adjusting the sequences of the data according to the communication protocol demands of the upper computer, thereby generating communication data; storing communication data to an upper computer to-be-read space in the lower computer; and transmitting the communication data in the upper computer to-be-read space to the upper computer. According to the method and the device, the data with the independent physical meanings is extracted from the instrument lower computer storage space, the data is numbered, selected and adjusted according to the onsite protocol demands and then the data is transmitted. The problem that the transmission data content of the instrument lower computer is inconsistent with the onsite to-be-transmitted data demands is solved, and the effect that the protocol content of the instrument lower computer and the onsite protocol demands are effectively compatible is achieved.

Description

technical field [0001] The embodiment of the present invention relates to industrial instrument communication technology, in particular to a data transmission method and device for an instrument lower computer. Background technique [0002] At present, due to the improvement of automation in the industrial field, most of the instruments have their own data remote transmission function. Typically, the data needs to be transmitted from the lower computer connected to the instrument to the upper computer. [0003] In the industrial field, the data that the lower computers of different instruments need to transmit are usually uploaded to the upper computer individually or in parallel. The transmission protocol of the lower computer and the upper computer can choose the Modbus protocol. Although the data format of the Modbus protocol is open, the data content of the specific instrument lower computer needs to communicate, and it is different due to the instruments and site requi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L12/40H04L29/06G08C19/00
CPCG08C19/00H04L12/40H04L69/06H04L2012/40228
Inventor魏秦枫张思奇刘昭郭芳许瑞安易进
OwnerSHANGHAI YINUO INSTR