Programmable multi-axis controller based on IEEE-1394 serial bus

Abstract

The invention relates to a programmable multi-axis controller based on an IEEE-1394 serial bus in the technical field of numerical control. The programmable multi-axis controller comprises an IEEE-1394 serial communication interface module, a DSP module, an FPGA module, a differential motion reception module, a DA and operation amplification module, a photoelectric isolation module, a power supply and clock module and an auxiliary module, wherein the DSP module receives motion control information transmitted from the IEEE-1394 serial communication interface module and transmits a generated multi-axis motor pulse instruction to the FPGA module; and the FPGA module outputs the multi-axis motor pulse instruction to the DA and operation amplification module after the storage and frequency division treatment of the instruction so as to complete digital-analog conversion and operation amplification treatment and further control the operation of a multi-axis motor. The programmable multi-axis controller reduces the number of controller elements and the volume of an integrated circuit card, improves the flexibility and the expansibility of a system, and meets the requirements of the multi-axis real-time, high-speed and high-accuracy control in the technical field of numerical control.

Description

technical field [0001] The invention relates to a motion control card in the technical field of numerical control, in particular to a multi-axis motion control card based on IEEE-1394 serial bus. Background technique [0002] In the field of numerical control technology, the motion control card is the core component of digital manufacturing. Nowadays, the "PC+motion control card" mode based on the field bus is widely used in the middle and high-end CNC systems. Organically combined, it has the characteristics of strong information processing ability, high degree of openness, precise trajectory control and good versatility. Therefore, the bus-type motion controller with multi-axis synchronous coordinated motion control and complex trajectory planning, real-time interpolation, and servo filter algorithm is widely used in the field of digital manufacturing. [0003] After searching the existing technical documents, it is found that the Chinese application number is 2004100171...

AI Technical Summary

Problems solved by technology

But in this invention, single-chip computing and data processing capability and on-chip resource are limited, can not satisfy high-performance servo control algorithm well, implement interpolation to the requirement of speed and resource use; RS-232 is the serial bus of low speed, can't very Well meet the requirements of speed, reliability and real-time performance in the field of high-end numerical control

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