General motor control interface card based on PXI Express bus

A general-purpose motor and control interface technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of motor control quality, limited motor type and sensor type, limited use conditions, etc., which restrict the ability of data collection and processing, and improve the quality of motor control , improve processing capacity, and expand the effect of versatility

CN107943737APending Publication Date: 2018-04-20SHANGHAI CONCORD TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-04-20

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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.
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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...

Examples

Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see figure 1 , in an embodiment of the present invention, a general motor control interface card based on the PXI Express bus, including a power supply module, an FPGA module, an ADC module, a resolver acquisition module, a differential digital input (DI) module, a differential digital output (DO ) module, LVDS interface module, PXI Express interface module. Wherein, described FPGA module is used to realize the interface management of whole interface c...