Field programmable intelligent control system based on single-chip microcomputer

Abstract

The invention discloses a field programmable intelligent control system based on a single-chip microcomputer. The field programmable intelligent control system includes one or more groups of sub control systems, wherein the sub control systems are formed by a host, a slave and, an extension machine which are connected by a bus; the host is used for processing an on-site signal collected by the extension machine, and the extension machine is used to send a control signal to a field device; the slave is used for transmission of the on-site signal; and the extension machine is used for acquisition and conversion of the on-site signal and for transmitting the control signal to the field device. In the invention, the one or more groups of sub control systems are provided, and each sub control system includes the host, the slave, and the extension machine which are connected by the bus; according to different fields, different on-site signal module combination methods can be designed so as to replace the contactor and relay control system to realize the signal acquisition and control of the field device; the enterprise manufacturing cost can be greatly reduced; and the research and development and the production are ensured for the small and medium-sized enterprise.

Description

technical field [0001] The invention relates to a control system, in particular to a field programmable intelligent control system based on a single chip microcomputer. Background technique [0002] With the advancement of science and technology, programmable logic controller (PLC) plays an increasingly important role in industrial field control. At present, most PLCs on the market are produced by large enterprises with strong technical strength, such as Japan's Mitsubishi, Omron, Germany's Siemens and other manufacturers. These manufacturers have rich experience in electronic product production and a complete technical chain. The department responsible for the production of integrated circuits in the manufacturers can complete the design, manufacture, sales and training of PLC hardware, software, host computer development software and supporting equipment. Serial processes, even including the processor chip inside the PLC. These mainstream programmable logic controllers h...

AI Technical Summary

Problems solved by technology

Currently popular PLC, in addition to basic instructions, also has complex function instructions, field bus functions and online communication, function module expansion functions, and some related industrial control equipment, such as touch screens, etc., which greatly increases the cost of PLC. Leading to very expensive PLC

In many application places, most of the above functions are not available, such as controlling mechanical equipment that works alone, the working process is not too complicated, simple process control equipment, etc. If the current PLC with complete functions is used, it will lead to The cost of use has risen sharply; if contactors and relays are used for control, product reliability will decrease; if single-chip microcomputer control is used directly, the development cost and product development cycle will be increased due to the extremely complicated development process of the single-chip microcomputer

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