Active vibration reduction method and system and active vibration reduction stretcher

Abstract

The invention provides an active vibration reduction method and system and an active vibration reduction stretcher, the active vibration reduction method is used for reducing the influence of vehicle inertial motion on a supporting plate in a vehicle body in the vehicle running process, and the active vibration reduction method comprises the steps that the forward acceleration and the lateral acceleration of the vehicle body in an inertial space in the vehicle running process are obtained; target attitude angles of the supporting plate relative to the vehicle body are determined according to the forward acceleration and the lateral acceleration of the vehicle body in the inertial space, the target attitude angles comprise a target roll angle and a target pitch angle, and the target attitude angles can counteract the forward acceleration and the lateral acceleration of the vehicle body in the inertial space through gravitational acceleration; the current attitude angle of the supporting plate relative to the vehicle body is adjusted to the target attitude angle by controlling rotation of the rotating mechanism connected between the vehicle body and the supporting plate. When the ambulance is used for transporting a patient, secondary injury caused by inertial motion of the ambulance to the patient can be relieved.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to an active vibration reduction method and system, and an active vibration reduction stretcher bed. Background technique [0002] In the process of transporting patients by ambulance, it will be affected by the bumps and ups and downs of the road surface and the movement of vehicles such as sudden braking, rapid acceleration, and sharp turns, which will reduce the comfort of the patient on the stretcher bed and cause motion sickness, etc., especially for craniocerebral injuries , cardiovascular disease, fractures, etc., these vibration shocks may be fatal. [0003] For the bumps and ups and downs of the road surface, the suspension system of the vehicle itself can play a role in attenuation. According to its mechanical principles, it can generally be divided into passive suspension (spring damper), semi-active suspension (air suspension, magneto-rheological suspension) ...

AI Technical Summary

Problems solved by technology

Taking the stretcher bed as an example, when the impedance is large, it will cause discomfort for the patient on the stretcher bed, and even secondary injuries, etc.

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