X-ray imaye system moving controller and debugging method

Abstract

The present invention relates to a X-ray machine image system movement control equipment and its debugging method. Said equipment consists of two portions of hardware and software, in which the hardware includes sensor, controller, actuator and protection circuit, and its control software includes running software and debugging software, said debugging software includes PLC software and upper-position machine software. The computer can utilize serial interface to transfer test command, after the command is received by PLC, the counter can be started, and the correspondent motor can be driven to implement test movement.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to the split movement of the imaging system of an X-ray machine in oblique photography, a control device for the tracking movement of the imaging system in axial photography, and to ensure the accuracy of tracking and positioning, for debugging A simple and highly operable debugging method designed by personnel. Background technique [0002] The imaging system is the main part of the X-ray machine. It includes two parts: the light source (ball tube and beam limiter) and the imaging component (film system or image intensifier), which realizes the function of acquiring images. On the old-fashioned X-ray machine, since the two parts are fixed on a mechanical part, and the movement of the imaging system is realized by a set of transmission mechanisms, the center of the light source is always facing the center of the imaging part, so only axial photography can be realized; in many ...

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Problems solved by technology

In the new type of X-ray machine introduced for this function, its light source and imaging components are respectively fixed on two mechanical components, and the respective movements are realized by two sets of transmission mechanisms, and because the function of axial photography (often in clinical Therefore, the control system must not only realize the independent movement of the two components, but also realize the tracking movement of the two components; at the same time, in order to ensure the effect of photography, the accuracy of tracking and positioning should be as high as possible; In addition, in order to make patients feel comfortable, start and stop should be stable, that is, there must be a process of acceleration and deceleration; in addition, the light source and imaging components are heavy, and the mechanical components for fixing are heavy loads, requiring the motor to be heavy. There is enough torque; the safety of medical equipment is also a very important indicator. In summary, higher requirements are put forward for control and actuators. There are many conventional motion control methods, but there are often problems of one kind or another , For example: the size of the motor is too large, which is not conducive to installation; the hardware circuit design is complex and the failure rate is high; or the motor drive module with high precision and multi-feedback is selected, which increases the cost of the system

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