Bidirectional two-speed positioning control method

A positioning control and high-speed technology, applied in the direction of control using feedback, etc., can solve the problems of low positioning control accuracy, lack of elimination of mechanical clearance, and inability to adjust control parameters accordingly

Inactive Publication Date: 2008-11-26
SHANGHAI BAOSIGHT SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, because there is no adaptive control function, when the equipment parameters change, such as friction resistance or inertia, the control parameters cannot be adjusted accordingly, and the sys

Method used

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  • Bidirectional two-speed positioning control method
  • Bidirectional two-speed positioning control method
  • Bidirectional two-speed positioning control method

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Embodiment Construction

[0048] image 3 An embodiment of the present invention is given in : the parameter identification process of a side guide plate, wherein the opening and closing of the side guide plate is driven by the rotation of the motor, and the position detection is realized by the encoder. In order to allow the device to move during the parameter identification process, first manually specify any sufficiently large area that the device can move, that is, specify 1 open position OPNpos and 1 closed position CLSpos, and the device is in these 2 positions during the parameter identification process. Moving between locations is accomplished in the following 5 steps:

[0049] Step 1: Move the device from the current position to the open position OPNpos specified during parameter measurement, that is, move the device to the initial position of parameter measurement;

[0050] Step 2: The device starts to close from the current position, and only closes at high speed and moves to the designated...

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PUM

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Abstract

The present invention discloses a double-direction double-speed positioning control method. At the beginning, equipment is arranged at the point A, and the equipment is required to be positioned at the point O. At the beginning, the equipment moves to the point B at high speed along the close direction and then is changed into low speed closing to move to the point C, the close output of the equipment is switched off, and the equipment keeps on moving under the inertia effect and stops moving at the point D. In the positioning control, the selection of four control parameters can influence the positioning precision and the total time required for positioning, so as to obtain the best value of four parameters. The present invention discloses the method for automatically identifying by the actual movement of the equipment; the present invention also discloses a self-adaptation method of the parameters; the present invention also discloses the control function of eliminating the mechanical gap and the measures for preventing the output from being switched frequently between high speed and low speed and between the low speed and the stop. The positioning control method disclosed by the present invention has the advantages of high positioning precision and fast positioning time.

Description

technical field [0001] The invention relates to a two-direction two-speed positioning control method. Background technique [0002] In metallurgical plants, there are extensive requirements for positioning control of equipment, such as the positioning control of raising the coil height of the entrance coil trolley to the center height of the uncoiler, the positioning control of the width adjustment of the side guide plate, and the adjustment of the insertion depth of the rollers of the straightening machine Positioning control, etc. The above-mentioned actuators used for positioning control are on / off valves or motors with forward and reverse rotation without speed regulation. When this type of equipment performs positioning control, there are two opposite directions, such as opening and closing, and the control There are two fixed speeds in the process, so it is called two-direction two-speed on-off output control. The actuator used for positioning control here requires tw...

Claims

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Application Information

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IPC IPC(8): G05D3/20
Inventor 王育华
Owner SHANGHAI BAOSIGHT SOFTWARE CO LTD
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