Method and device for performing spatial positioning on electronic tag, 3D signing and human-computer interaction

An electronic device, comprising a system for performing spatial positioning on an electronic tag, wherein the system for performing spatial positioning on the electronic tag comprises at least three sets of array antennas, an electronic tag reader module and a positioning module, wherein:

• the at least three sets of array antennas are arranged on the electronic device and are three-dimensionally distributed, each set of array antennas comprises a plurality of antenna array elements extending in one dimension;
• the electronic tag reader module is respectively and electrically connected with each antenna array element in each set of array antennas and is configured to:
• after the electronic tag reader is turned on, generate a radio frequency electromagnetic field, and acquire induced voltage generated on each antenna array element in each set of array antennas when the electronic tag reader senses that there is an electronic tag in the radio frequency electromagnetic field;
• and
• the positioning module is configured to:
• determine spatial position information of the electronic tag according to the induced voltage;
• wherein:
• the at least three sets of array antennas are three sets of array antennas which are three-dimensionally distributed on the electronic device, every two of the three sets of array antennas are perpendicular to each other to form a rectangular coordinate system, and the plurality of antenna array elements of each set of array antennas are a plurality of microstrip antennas which are uniformly distributed in a line and form coordinate points of the rectangular coordinate system;
• and
• the positioning module is configured to determine the spatial position of the electronic tag according to the induced voltage according to the following mode:
• respectively determining three antenna array elements with first three largest induced voltages in the three sets of array antennas;
• and using identification information or corresponding coordinate positions of the three antenna array elements with the first three largest induced voltages as the spatial position information.