Tactile transmission method for identifying virtual keys on intelligent surface of cockpit

The invention discloses a tactile transmission method for identifying virtual keys on the intelligent surface of a cockpit, which comprises the following steps: acquiring the pressure of pressing the virtual keys through a pressure sensor, realizing a key function and providing normal response feedback when the pressure is heavy, and helping a user to identify the keys only through a tactile transmission method when the pressure is light, comprising the steps of 1, constructing a group of stimulation signals, presenting the stimulation signals to a user in pairs for subjective difference scoring, and obtaining a comparison distance matrix of each pair of stimulation; step 2, calculating a stimulation two-dimensional coordinate matrix after dimension reduction through a multi-dimensional scaling algorithm; 3, when the stimuli in the two-dimensional diagram are uniformly distributed, the difference sum of a set M with m stimuli is maximum, and the distance between each stimulation pair in the set is greater tha