General motor control interface card based on PXI Express bus

Abstract

The invention discloses a general motor control interface card based on a PXI Express bus. The interface card includes an FPGA module. A front end of the FPGA module is connected with an ADC module, aresolver collection module, a differential-digital-quantity input module, a differential-digital-quantity output module and an LVDS interface module, and a back end is bidirectionally connected witha PXIExpress interface module, a PXI interface module and a CPCI interface module. The interface card has the advantages that: (1) a data transmission rate is increased on the basis of the PXI Expressbus, and up to 2.5Gb / s, and motor control quality is effectively improved; (2) the FPGA module is adopted for data processing, and processing capability of motor sensing signals is improved; and (3)the used PXI Express bus is compatible with conventional buses such as PXI and PCI Express, and can be effectively multiplexed with various bus devices.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a general motor control interface card based on the PXI Express bus. Background technique [0002] Motor control is widely used in automation, automobile, national defense and other industries, and plays an important role in industrial control. Among them, the motor control interface card is used to realize the transmission management and processing of motor sensing signals and control signals, and is a key part of the motor control system. At present, in the field of industrial control, the PXI Express bus has been widely used in data transmission and communication because of its serial interconnection rate up to 2.5Gb / s and good compatibility with PCI Express and other buses. Industrial control equipment is also widely used in this field. At present, most of the motor control interface cards in the industry are based on the traditional PXI and PCI Express buses, which cannot be e...

AI Technical Summary

Problems solved by technology

At present, most of the motor control interface cards in the industry are based on the traditional PXI and PCI Express buses, which cannot be effectively integrated with the widely used PXI Express bus devices in the industry, and the transmission rate is low, which restricts the collection of data in high real-time control scenarios Improved processing power and motor control quality

In addition, the current motor control interface card supports limited motor types and sensor types, resulting in limited use conditions

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