Triaxial rotation mechanism control apparatus with real-time fault monitoring capability

Abstract

The invention discloses a triaxial rotation mechanism control apparatus with a real-time fault monitoring capability. A triaxial rotation mechanism is under the control of three orthogonally installed DC brushless motors. The apparatus mainly comprises a master control unit taking a DSP as a core, a signal acquisition module taking a CPLD as a core, and an optical coupler isolation module. The DSP receives external motor rotation instructions and synchronization signals and is connected with the signal acquisition module, a bus transmission module, a level conversion module and a communication module. The signal acquisition module is used for acquiring a rotation mechanism angle measuring apparatus signal, a temperature sensor signal, a vibration sensor signal, and a fault detection signal of a motor driving module and sends the acquired signals to the DSP. The DSP, according to the four received signals, determines whether the apparatus is currently at a normal working state so as to realize real-time monitoring of the control apparatus. In terms of a control algorithm, by use of an active control strategy, smooth transition of uniform-speed forwarding and reversing of the rotation mechanism are guaranteed, and the control precision of a system is ensured.

Description

Technical field [0001] The invention relates to a three-axis rotating mechanism control device with real-time fault monitoring capability in the field of motor control, in particular to a control device for three-way orthogonally installed DC brushless motors. It is suitable for the control of rotating mechanisms that require high control accuracy and safety and stability. Background technique [0002] The brushless DC motor is composed of a motor body and a driver, and is a typical mechatronic product. It has the advantages of the traditional DC motor, while eliminating the carbon brush and slip ring structure, and has the advantages of small size, light weight, and large output. The three-axis rotating mechanism has been widely used in the fields of automobiles, tools, industrial control, automation, and aerospace. The precise and safe control of the rotating mechanism has always been a research hotspot. With the development of electronic technology, microelectronics technolo...

AI Technical Summary

Problems solved by technology

This type of device can only work in an environment with relatively stable external conditions, and loses the ability to detect faults in an environment with relatively complex external conditions

In general, the tasks of motor control and fault detection are completed by the main chip, which will make the control system not flexible enough, and there is no additional active control in the process of realizing uniform speed forward and reverse

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