Multipath programmable general integratable time sequence controller

Abstract

The multiway time sequence controller for industry control, electric appliance control and instrument control includes monochip computer, DSP, RAM, decoder and latch unit, level matching unit, contact on-off drive and overvoltage protection unit, parallel / serial converter unit, etc. By using common cheap devices and through a kind of new software and hardware control mechanism, the present invention realizes the simultaneous time sequence control of several channels and has the functions of safety protection, fault detection and locating, data record, and remote communication interface to Internet. The present invention is universal and strong in anti-interference capacity, and may be widely usd.

Description

1. Technical field: [0001] The invention is a multi-channel sequential controller used in industrial control, household appliance control, and instrument control, which belongs to the innovative technology of the multi-channel sequential controller. 2. Background technology: [0002] Most of the existing multi-channel timing controllers adopt the following schemes: (1) use programmable logic controller PLC; (2) use a set of analog timers for each channel; (3) use a dedicated single-chip microcomputer to realize. However, these solutions more or less have deficiencies. For example, the current price of programmable logic controller PLC is generally more than 1,000 yuan, and the realization of personal safety devices is relatively complicated; It is widely used in China, but it has single function, poor versatility, large size, difficult integration and difficult maintenance. At present, the timing controllers implemented by domestic single-chip microcomputers are still singl...

AI Technical Summary

Problems solved by technology

However, these solutions more or less have deficiencies. For example, the current price of programmable logic controller PLC is generally more than 1,000 yuan, and the realization of personal safety devices is relatively complicated; It is widely used in China, but it has single function, poor versatility, large size, difficult integration and difficult maintenance.

At present, the timing controllers implemented by domestic single-chip microcomputers are still single-channel. Even if they are multi-channel, they are programmed with instruction flow, and their resistance to expansion is poor, which limits their popularization and application. Moreover, such systems generally do not consider system integration. Personal safety protection, anti-high and low voltage crosstalk, connection with the host computer to expand into a control network and other factors

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