Electric beds for medical devices to allow the patient to rest and recuperation, convenient function to bring comfort and scientific design is not a small effect on the rehabilitation of patients.In order to make the control system intelligent control the electric sickbed and understand the current working state of the sick bed, it is very necessary to place the necessary number of sensors on the bed of the electric bed. Through the data transmitted by sensors, the control system can understand and control the motion state of the bed panel in real time, prevent the interference of different mechanisms or the overshoot of linear motors, and cause unnecessary injury to the bed and personnel. The sensor mainly uses a position sensor, including a limit switch and a close switch. The whole nursing bed comprises a plurality of organization structure in independent institutions, each corresponding to a degree of freedom mechanism above, these institutions in a unified coordinated control system under the control of a more open chain system, through the cooperation of each movement of the bed panel, make the beds to complete a specific position pose. Therefore, the control system is a very important part of the whole nursing bed, which is closely related to the structure design of the nursing bed and the selection of the motor. Before the final determination of the control system, the analysis of the structure, kinematics and dynamics of the nursing bed must be completed first.
The control of bed position is made up of a single chip microcomputer control system, which monitors the whole nursing bed system, including receiving the input of keyboard and sensor position signal, and controlling signal of output motor.