Stepping motor driving control method and system

Abstract

The invention belongs to the stepping motor control technology field and provides a stepping motor driving control method and a system. The control method comprises the following steps of A, making astepping motor rotate and be in an acceleration state, and calculating a real-time step number of stepping motor acceleration rotation; B, determining whether a sum of the real-time step number and afixedly-arranged step number of deceleration rotation of the stepping motor under an idle state exceeds a preset step number, if the sum exceeds the preset step number, executing a step E, otherwise,executing a step C; C, when a rotating speed of the stepping motor reaches a preset rotating speed, making the stepping motor carry out uniform rotation as the preset rotation speed; D, calculating asuperposed step number of the acceleration rotation and the uniform rotation of the stepping motor so that a sum of the superposed step number and the fixedly-arranged step number reaches the preset step number; and E, making the stepping motor carry out deceleration and making the stepping motor stop rotation after the fixedly-arranged step number. Therefore, effects of controlling the rotation speed of the stepping motor in real time and carrying out rotation according to the preset step number are achieved, an out-of-step phenomenon is avoided and high real-time performance is possessed.

Description

technical field [0001] The invention belongs to the technical field of stepping motor control, in particular to a control method and system for stepping motor driving. Background technique [0002] Stepper motor is a discrete motion device, which is widely used in various fields of the national economy. The current general control method is to use a single-chip microcomputer combined with a stepper motor controller for control. The disadvantages of this control method are: 1. Due to The operating speed of the single-chip microcomputer is limited, and the speed of the stepping motor is not high when the subdivision drive is realized; 2. The single-chip microcomputer controls the generation of the stepping pulse of the stepping motor through the timer. Due to the limited time resolution of the timer, the stepping motor The operating speed adjustment of the machine is discrete, and the interval between the speeds of each level is relatively large, which cannot meet the requirem...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a control method and system driven by a stepping motor, which aims to solve the problem of poor practicability of the existing stepping motor control technology because the stepping motor is easy to lose steps or cannot rotate according to the preset number of steps. The problem

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