The invention relates to the technical field of
psychological intervention and tactile interaction, in particular to a group psychological sand table somatosensory
interaction device based on tactile interaction, which comprises a pressure dynamic
fingerprint acquisition unit and a dynamic adjustment feedback unit. A pressure dynamic
fingerprint containing a pressure topological structure variation index and a pressure
gravity center migration acceleration is obtained, a dynamic adjustment feedback unit inputs the pressure dynamic
fingerprint into a lightweight space-time diagram convolutional network optimized by adversarial training, synchronously outputs an operator identity
label and an operation intensity level, activates a corresponding
wrist strap tactile feedback device, dynamically adjusts parameters, and outputs a corresponding
wrist strap tactile feedback result. When the intensity is low, high-frequency micro-vibration is triggered, when the intensity is high, progressive pressure
waves are triggered, when the similarity of two sand tool pressure fingerprints exceeds a threshold value, freezing is carried out, then a sand tool feedback channel is operated, and the equipment improves feedback accuracy and interaction orderliness and is suitable for group psychological sand table treatment.