Data interaction intelligent terminal system and communication method

Abstract

The invention relates to a data interaction intelligent terminal system and a communication method. A host terminal comprises a core control unit, a DIDO isolation card circuit, an AI isolation card circuit, an AO isolation card circuit, a co-processing unit interface circuit, a series port isolation card circuit, an integrated communication card circuit, a man-machine interaction circuit, a PWM counter isolation board circuit, an IO expansion card circuit and a power management unit. The terminal system comprises a data interaction intelligent host terminal, a data bus and slave terminals from a first to an nth. In the communication method, a beacon fire relay main module and a beacon fire relay slave module are used for communication. Flexible assembly features are achieved; high-efficiency and powerful secondary development characteristics and high-efficiency and convenient slave expansion characteristics are achieved; the host gets rid of a mode of selecting a slave unit through acommunication bus, the original two-way response-type communication is changed to a relay response mode, and the communication real-time performance is improved; and the anti-interference ability andthe stability are stronger, plug and play of a slave unit can be achieved, and cascade-type infinite expansion is realized.

Description

technical field [0001] The invention relates to a data interaction intelligent terminal system and a communication method, belonging to the technical field of automatic control. Background technique [0002] In the industry, it is often necessary to collect the signals of some equipment or to automatically control some equipment, and the controllers and signals used in industrial equipment are various, which requires a controller or medium that can be connected to a variety of equipment. The type of signal connected It needs to cover DI (digital input), DO (digital output), AI (analog input), AO (analog output) and various serial communication data signals (such as 485 communication, CAN communication, Ethernet, etc.). The existing processing methods are generally as follows: 1. Use PLC. Although PLC is easy to use and has high reliability, its cost is high, and its system structure is closed. Various PLC manufacturers are also contending with each other, their hardware sys...

AI Technical Summary

Problems solved by technology

Although there are many kinds of signals in the control site, different control sites have different emphases, which makes it difficult for one control medium to be applied to various communication occasions, and the developers of the control medium often need to purchase different signals for different industrial sites. Modules are used to develop different control devices; the above two methods will cause waste of human resources and material resources to a certain extent

Moreover, although electronic products are easy to use, their potential harm to the environment is great, and the recovery rate is low and low. In today's increasingly serious environmental problems, it is not conducive to the development of ecological civilization.

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