Research and Analysis of Load Characteristics of Upper Limb Exoskeletons

Based on the compatibility of wearing and movement comfort between upper limb exoskeletons and the human body, as well as whether it can assist the human body in handling goods, this study investigates the impact of changes in load quality on upper limb exoskeletons under two conditions: wearing and not wearing upper limb exoskeletons. Considering the strong adaptability of the human body, relying solely on intuitive judgment from the human body is not authoritative. Therefore, external device electromyographic signals are used for joint judgment with the human body. By analyzing the electromyographic signals of the biceps brachii muscle when carrying different mass loads, calculate the percentage decrease in electromyographic signal amplitude, muscle activation level (MPF value), and fatigue level (RMS value). The research results show that under the condition of wearing upper limb exoskeletons, the amplitude of electromyographic signals in both hands can decrease by more than 54% under a load of 5kg. Under a load of 10kg, the amplitude of electromyographic signals in both hands can decrease by more than 36%. Under a load of 15kg, the amplitude of electromyographic signals in both hands can decrease by more than 34%, Under a load of 20kg, the amplitude of the electromyographic signals in both hands can decrease by more than 31%; The degree of muscle activation and fatigue have significantly decreased. Verified the compatibility between the exoskeleton of the upper limbs and the human body, and provided assistance in handling goods.