Embedded drive controller based on ARM of ultrasonic motor

A technology of ultrasonic motor and drive controller, applied in generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve problems such as poor cost performance, high cost, and inability to be widely used , to achieve the effect of low cost, simple peripheral circuit and friendly human-computer interface

Inactive Publication Date: 2009-03-11
YANGZHOU UNIV
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Problems solved by technology

Most of their control cores use single-chip microcomputers, and some use digital signal processors DSP; although this method is simp

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  • Embedded drive controller based on ARM of ultrasonic motor
  • Embedded drive controller based on ARM of ultrasonic motor

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Embodiment Construction

[0011] ARM microcontroller is a high-end microcontroller designed based on the principle of Refined Instruction Set Computer (RISC). The instruction set and related decoding mechanism are much simpler than complex instruction set computers. This simplification achieves high instruction throughput, excellent interrupt response, and a small and cost-effective processor macro unit. The operating system can be run on the upper and the lower can be used for real-time control. These advantages enable the ARM-based control system to easily run complex control algorithms and achieve more precise control, which cannot be accomplished by ordinary single-chip microcomputers. Compared with DSP, DSP is mainly used for calculation, such as encryption and decryption, modulation and demodulation, etc. Its advantages are strong data processing capabilities and higher operating speed. The ARM microcontroller has a relatively strong transaction management function, which can be used to run interface...

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Abstract

The invention relates to an embedded controller adopting an ARM microcontroller and a uC/OS-II embedded real-time operating system. The embedded controller is used for controlling an ultrasonic motor. The embedded controller is characterized in that a touch screen and a keyboard are connected with the touch screen interface and the keyboard interface of the ARM microcontroller, the output of the ARM microcontroller is connected with the input ends of a wave generator circuit and a voltage control circuit, the outputs of the wave generator circuit and the voltage control circuit are connected with a power voltage amplifying circuit, the output of the power voltage amplifying circuit is connected with the ultrasonic motor M1, a photoelectric encoder M2 and the ultrasonic motor M1 are coaxially arranged, and the output end of the photoelectric encoder M2 is connected with the input end of the ARM microcontroller. The invention solves the problems existing in the switching power supply technology that hardware parts are more complicated, a special chip and a peripheral circuit are required, and the power consumption is larger as well as the defects existing in the process that a sine wave signal is directly amplified and input into the ultrasonic motor that the cost is high, the performance-price ratio is bad, and the like. The invention has the advantages that the peripheral circuit is simple, the cost is low, the speed and position control of the ultrasonic motor is realized through the humanized human-computer interaction, and the running state and the running curve of the motor are displayed on a liquid crystal display in real time.

Description

Technical field [0001] The invention is a device for controlling an ultrasonic motor, and in particular relates to an embedded controller adopting an ARM microcontroller and a uC / OS-II embedded real-time operating system to control the ultrasonic motor. Background technique [0002] Ultrasonic motor is a new type of direct drive micromotor that uses the ultrasonic vibration excited by the inverse piezoelectric effect of piezoelectric ceramics as the driving force, and converts it into the rotation or linear motion of the moving body by the friction coupling between the vibrating part and the moving part. Its special structure and driving principle determine that its transfer function is nonlinear. Ultrasonic motors use the friction drive between the stator and rotor, and the relative sliding friction coefficient between the stator and rotor cannot be determined, and the resonance frequency of the motor will change with the increase of continuous operation time and temperature, an...

Claims

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Application Information

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IPC IPC(8): H02N2/06H02N2/14
Inventor 莫岳平段小汇张新星从进蒋斌
Owner YANGZHOU UNIV
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