Design and Research of a High Spatial Resolution Insole Plantar Pressure Acquisition System

The acquisition and analysis of plantar pressure can be applied to the postoperative gait rehabilitation training of stroke patients, providing effective quantitative data reference for doctors to evaluate the patient's condition and formulate targeted treatment plans. In this paper, an insole type plantar pressure sensing system was developed for the needs of long-term continuous monitoring of patients in sports rehabilitation training. The sensing system has a large amount of sensor units (maximum 288) and high spatial resolution (1.64/cm2). Through the optimized circuit structure design, the clear acquisition of pressure sensing images was ensured, and the remote plantar pressure measurement with high sampling rate (100SPS) was realized.