▎ 摘　　要

NOVELTY - Preparing graphene oxide collagen crown composite hydrogel comprises (1) adding collagen to glycerol solution and stirring evenly to obtain collagen solution; adding graphene oxide to glycerol solution and stirring evenly, and ultrasonically dispersing to obtain graphene oxide dispersion liquid; (2) adding graphene oxide dispersion liquid to collagen solution, and allowing to stand to obtain the collagen crown solution; and (3) first adding polyvinyl alcohol to glycerol solution to obtain a polyvinyl alcohol/glycerol solution, adding konjac gum and the collagen crown solution obtained in step (2) to the polyvinyl alcohol/glycerol solution, stirring at 50-60°C for 1-3 hours, pouring into the mold, freezing and thawing at room temperature, circulating for 2-4 times, transferring to lithium chloride solution and soaking, obtaining collagen crown/polyvinyl alcohol/konjac gum composite hydrogel. USE - The composite hydrogel is used as sensor in detecting human motion. ADVANTAGE - The composite hydrogel: has greatly improved freeze resistance, good stretchability, viscoelasticity, transparency and sensitivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the graphene oxide collagen crown composite hydrogel as a sensor in detecting human motion, comprising monitoring the movement of the human body by change of internal resistance of the hydrogel, sensitivity factor is 1.38 to 1.88.