Upper and lower computer communication method of microbial fermentation online concentration analyzer

Abstract

The invention discloses an upper and lower computer communication method of a microbial fermentation online concentration analyzer. The microbial fermentation online concentration analyzer comprises an upper computer MCGS main control system, a lower computer STM32 main control system and a detection system. Instruction transmission and data transmission are carried out between an upper computer and a lower computer, and a self-defined communication protocol with CRC verification is adopted. Communication setting and protocol design are carried out on the upper computer and the lower computerrespectively, the upper computer sets and calls a library function through a serial port, and the lower computer writes a protocol function through a keil software to achieve communication. Accordingto the whole detection process, a communication protocol format is designed, and the specific communication instruction of the microbial fermentation online concentration analyzer is divided into three parts of the upper computer main control system, the lower computer main control system and a detection system. A specific module for judging received instruction according to address bit can execute different operations according to different function codes. Through accurate and stable communication of the upper computer and the lower computer, on-line sampling and on-line component concentration detection are realized.

Description

technical field [0001] The invention relates to the technical field of communication and electrical control, and in particular to a communication design for an upper and lower computer of an online concentration analyzer for microbial fermentation. Background technique [0002] During the fermentation process, microorganisms can metabolize or convert raw materials (sugars) into target products in an orderly manner. Scientific studies have shown that the types and concentrations of substrates and products, as well as their interactions, will have a major impact on the reaction rate, product yield and cell selection of metabolic pathways during microbial fermentation. Real-time monitoring of key component concentrations is extremely important for improving fermentation production efficiency. By monitoring the concentration of key components (substrates, intermediate metabolites, and products) online, the physiological state of cells can be identified in real time, the laws of...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of long detection period and unreliable data caused by untimely communication in the detection process of the microbial fermentation online concentration analyzer. RS485 communication mode and self-defined communication protocol are adopted to provide an online microbial fermentation concentration analyzer. The Communication Design of the Upper and Lower Computers of the Analyzer

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