A multi-channel stepping motor control method and system based on an embedded processor
An embedded processor and stepping motor technology, applied in the control system, motor generator control, electrical components, etc., can solve the problems of stepping motor out-of-step and overshoot, to avoid out-of-step and overshoot, and respond Rapid, smooth acceleration effect
Active Publication Date: 2020-11-10
桂林恒毅金宇通信技术有限公司
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Problems solved by technology
[0003] In order to realize the real-time response of the stepper motor in the stepper motor control system, reduce the cost, and solve the problem that the stepper motor is prone to out-of-step and overshoot, the invention provides a multi-channel stepper motor control method based on an embedded processor with the system
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[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0022] When the stepper motor is working, it moves a step angle every time it receives a control pulse, and turns forward one step. When the control pulse is continuously input, the stepper motor will rotate continuously accordingly. The out of step of the stepper motor means missing the control pulse and not moving to the specified position, and the overshoot means moving beyond the specified position. The out-of-step and overshoot of the stepper motor will affect the stability and control accuracy of the stepper motor control system and affect the production of products. The out-of-step and overshoot phenomena of stepping motors often occur when the stepping motor starts and stops respectively. In order to overcom...
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The invention relates to a control method and system of multiple stepping motors based on an embedded processor. The control method comprises the steps that instructions sent by an upper computer arereceived; according to the running sequence, the stepping motors corresponding to the serial number are invoked through the multi-threaded task scheduling sequence of a FreeRTOS operating system; according to operation parameters, tan_sigmoid motor control functions are used for separately controlling the multiple stepping motors to perform corresponding acceleration and deceleration operation; and when it is detected that all the stepping motors complete the instructions, and instruction completion information is returned to the upper computer. The control method and system of the multiple stepping motors are based on the embedded processor, through the task scheduling of the FreeRTOS operating system, the tan_sigmoid motor control functions are used for controlling the operation of the stepping motors, the real-time response of the stepping motors is realized, and the problem that the stepping motors are prone to occurring out-of-step and overshoot is solved.
Description
technical field [0001] The invention relates to the technical field of motor control, in particular to a multi-channel stepping motor control method and system based on an embedded processor. Background technique [0002] With the development of industrial automation, in order to improve the production efficiency of products, the assembly line has been widely used in industrial production, and the stepper motor is more and more used in the assembly line because of its excellent open-loop control performance. When working, multiple stepping motors run synchronously to push items forward. In order to ensure the safety of product production and improve the control accuracy of the control system, it is required that the stepping motors can respond to the control signals in real time when synchronously controlling the multi-channel stepping motors; at the same time, the stepping motors are prone to out-of-step and overshoot problems. In the prior art, FPGA or CPLD are used to sy...
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IPC IPC(8): H02P8/40H02P8/38H02P8/32
CPCH02P8/32H02P8/38H02P8/40
Inventor 宋树祥王宜瑜
Owner 桂林恒毅金宇通信技术有限公司