The power backpack refers to an energy‐harvesting solution engineered to mitigate battery reliance in wearable electronics by converting potential energy derived from the vertical movement of the body's center of gravity into electrical output. Conventional designs, however, remain constrained by high activation speed, excessive mass burdens, and suboptimal power output. To address these limitations, a lightweight hybrid power backpack integrating triboelectric–electromagnetic generators is designed. Combining a tension–compression spring‐based vibration unit with two gear‐rack‐assisted transmission units, two sliding‐mode charge migration triboelectric nanogenerators (SC‐TENGs) and four rotatory electromagnetic generators (R‐EMGs) are simultaneously actuated. Through systematic optimization of tribo‐material pairing, electrode configuration, connection method, spring stiffness, and gear pressure angle, the hybrid power backpack achieves an operational threshold as low as 3 km h −1 while delivering a specific power output of 0.18 W kg −1 . Practical implementation demonstrates a self‐powered field safety management system capable of real‐time human motion metric monitoring, complemented by ultraviolet water disinfection and nighttime lighting. The hybrid backpack presented in this work provides an efficient methodology for biomechanical energy harvesting while incorporating a shunting strategy that optimally leverages the output characteristics of energy harvesters to establish a multifunctional self‐powered system.
Chen et al. (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: