A sensor control method and system for a nursing robot

By acquiring real-time vertical pressure and shear force data from the nursing robot and dynamically calibrating sensors based on patient information, a skin stress distribution map is constructed. This solves the problem of insufficient identification of local high pressure and shear force by the nursing robot under non-uniform contact conditions, achieving precise protection of fragile patient skin and reducing the risk of chronic injury.

CN121083630BActive Publication Date: 2026-05-26GUANGDONG HUIQUKONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG HUIQUKONG TECH CO LTD
Filing Date
2025-09-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Under non-uniform contact conditions, nursing robots have difficulty accurately identifying and adjusting local high-pressure points and continuous shear forces, leading to chronic hidden damage to the fragile skin of patients. Existing technologies are unable to detect and warn of this damage in its early stages.

Method used

By acquiring real-time vertical pressure and shear force data, combined with the patient's local body contour and soft tissue characteristics, the sensor calibration parameters are dynamically adjusted to construct a skin stress distribution map. Based on the map, the posture and contact point of the robot's end effector are adjusted to achieve precise perception and adaptive adjustment of local high pressure and shear force.

Benefits of technology

It significantly reduces the risk of pressure sores and skin damage in patients, improves the safety and quality of care of nursing robots, and ensures the accuracy and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a sensor control method and system for a nursing robot, relating to the field of nursing robot control technology. The method includes the following steps: acquiring vertical pressure data and shear force data; calibrating the data based on calibration parameters to obtain calibrated vertical pressure and shear force data; constructing and updating a skin stress distribution map reflecting the vertical pressure and shear force distribution in the contact area in real time; and redistributing the contact force based on the skin stress distribution map by adjusting the movement direction or tilt angle of the nursing robot's end effector, and dispersing localized high pressure by changing the contact point or force application point of the end effector. The method of this invention aims to overcome the problems of inaccurate identification of localized high-pressure points and continuous shear force due to insufficient initial calibration and simplified torque control models, achieving accurate perception and adaptive adjustment of vertical pressure gradients and continuous shear force, and avoiding cumulative micro-damage that is difficult to detect early using conventional methods.
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