Bed position control system and control method of bed position control system

Abstract

The invention is applicable to the field of bed position control, and provides a bed position control system and a control method of the bed position control system. A programmable multi-axis control driver is in communication connection with a vertical moving servo driver through a field bus communication loop; the programmable multi-axis control driver controls a horizontal moving servo system to move the bed position in the horizontal direction according to a horizontal moving control instruction; the vertical moving servo driver receives a vertical moving control instruction sent by the programmable multi-axis control driver and controls a vertical moving servo system to move the bed position in the vertical direction; a position limiting switch limits the moving range of the bed position; when the bed position moves to touch the position limiting switch, the position limiting switch sends touch information to the programmable multi-axis control driver; and the programmable multi-axis control driver controls the bed position to stop moving. The servo driver and a host system are connected through a field bus; the use cost of the field bus of the bed position control system is reduced; and the characteristics of high precision equipment synchronism, optional cable redundancy and functional security protocols are realized.

Description

technical field [0001] The invention belongs to the field of bed position control, and in particular relates to a bed position control system and a control method thereof. Background technique [0002] In the clinical application of CT scanning, it is often necessary to move the bed to perform multiple scans at different positions, so it is necessary to control the position of the CT bed. The stability of the bed during movement directly affects the scanning results, and the bed changes from the current position Moving to the specified position on the path may interfere with the rack, and it is necessary to control and stop the movement of the hospital bed in time. Therefore need to have more safe and effective control system and method to hospital bed. [0003] As the most advanced imaging technology in the field of biomedical engineering today, molecular medical imaging technology is the application of imaging methods to conduct qualitative and quantitative research on bi...

AI Technical Summary

Problems solved by technology

[0004] PET-CT includes a PET machine and a CT machine with the same axial direction, so the horizontal displacement of the bed position is farther from the initial position, which is prone to measurement errors caused by the sagging deformation of the bed board

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