Method for controlling servo controller of servo control device for three-dimensional security doors

Abstract

The invention relates to a method for controlling a servo controller of a servo control device for three-dimensional security doors. The method is characterized in that the operation of self-checking correction is completed through a part of control steps; and in the process of self-checking correction, the servo controller (9) acquires signals of a reading head of a grating ruler (7), calculatesthe position of a load and controls a motor to carry out a return-to-zero motion, then, after the operation of correction is completed, the servo controller (9) reports servo state information to a signal processing extension and waits for a work instruction; and a scanning operation is completed through other control steps; and in the process of scanning, the servo controller (9) calculates parameters according to a preset scanning motion curve and controls a motor driver (2), so that a load framework (6) of a servo system carries out a scanning motion. By using the servo controller, a motion can be performed stably according to a preset curve track under a work scanning instruction, thereby ensuring the imaging index requirements of a three-dimensional security door system.

Description

technical field [0001] The present application relates to the field of servo control, in particular to a control method for a servo controller of a three-dimensional imaging security gate servo control device. Background technique [0002] The 3D imaging security gate is suitable for security projects in special occasions such as airports, subways, banks, and large-scale events. It uses microwave imaging technology from different angles to form a 3D imaging image of the target object to detect whether there are dangerous objects, so it needs to be equipped with servo control. The system controls the movement trajectory of the load frame equipped with the microwave antenna transceiver module. In order to ensure the imaging quality and detection speed of the security door system, higher requirements are put forward for the running speed, running curve and stability of the load of the servo control system. [0003] The public report relevant to the present invention has: " des...

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Problems solved by technology

[0003] The public report relevant to the present invention has: " design and realization of novel kiosk type metal detection system " (" security science and technology ", the 4th issue in 2008) has introduced the control method of the servomotor that utilizes CPLD to realize in the article, and its main control The object is the bulletproof glass door in the double-door pavilion structure, which only needs to be controlled to open and close, and has no special requirements for the running speed and running track. Therefore, the control method of the servo controller in the prior art cannot realize the self-checking and working scanning functions. , unable to meet the steady speed and precise zero return of the load frame during the working process, and also unable to meet the index requirements of the three-dimensional security door system imaging

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