Digital servo controller and corresponding servo control system

Abstract

The invention discloses a digital servo controller and a corresponding servo control system. The digital servo controller comprises a power transformation circuit which is coupled to a direct-current power supply and is used for supplying power to the digital servo controller, a micro processor, and a digital signal interface module, an analog signal interface module, an asynchronous serial interface module and a synchronous serial interface module which are in signal connection with the micro processor, wherein the micro processor controls a control state of the digital servo controller according to an input signal of the digital signal interface module, acquires an instruction signal through the asynchronous serial interface module or the analog signal interface module, acquires a feedback signal through the analog signal interface module or the synchronous serial interface module, and produces a driving signal by proportion integration differential operation according to the instruction signal and the feedback signal. The digital servo controller has high reliability under a severe industrial environment; and the real-time running speed meets the requirement of high-speed and high-precision motion equipment completely.

Description

Technical field [0001] The invention relates to the technical field of servo control, in particular to a digital servo controller and a corresponding servo control system. Background technique [0002] Electro-hydraulic servo control technology, as a bridge connecting modern microelectronic technology, computer technology and hydraulic technology, has become an important component of modern control technology. It has significant advantages such as high output power, small electromagnetic interference radiation, good linearity, small dead zone, high sensitivity, good dynamic performance, fast response, and high precision, so it has been widely used. [0003] The traditional electro-hydraulic servo control technology is often implemented by analog servo controllers, which have a low degree of automation, cumbersome modification of control parameters, and the electro-hydraulic servo system has no visibility. For this reason, digital servo control has gradually replaced analog servo c...

AI Technical Summary

Problems solved by technology

[0004] However, the existing digital servo control technology is mostly dominated by the high-performance digital motion controller technology of western developed countries. This kind of equipment mostly uses DSP core processor with 16-bit processing capability, and the system structure is complex. Often due to the harsh industrial environment Poor reliability, unsatisfactory real-time operation speed, high development and maintenance technology threshold, high cost and other limiting factors make it difficult to popularize and apply in the vast field of automatic machinery and equipment manufacturing with weak domestic industrial foundation, and it is also difficult to meet high-speed real-time response requirements. Requirements for High Precision Motion Equipment

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