Servo controller for servo control device of three-dimensional imaging safety detection door

Abstract

The invention relates to a servo controller for a servo control device of a three-dimensional imaging safety detection door. The servo controller is characterized by being operated in the following operating modes that: in a first mode, self-checking calibration is finished, the servo controller (9) is used for acquiring an indication head signal of a grating ruler (7), calculating a load position and controlling a motor to do zeroing motion in the self-checking calibration operation process, and servo condition information is reported to a signal processing extension set to wait for the transmission of an operation command after the calibration is finished; and in a second mode, scanning operation is finished, and the servo controller (9) is used for calculating parameters and controlling a motor driver (2) according to a preset scanning motion curve in the scanning operation process, so that a load frame (6) of a servo system does scanning motion. The servo controller can move and stably operate according to a set curve track under the action of an operation scanning command, so that imaging index requirements of a three-dimensional safety detection door system are met.

Description

technical field [0001] The present application relates to the field of servo control, in particular to 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: " design and realization o...

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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 a bulletproof glass door in a double-door pavilion structure, which only needs to be controlled to open and close, and has no special requirements for running speed and running track. During the working process, the load frame returns to zero at a steady speed and accurately, and it cannot meet the index requirements of the 3D security door system imaging

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