Interactive displaying method, control method and system for achieving displaying of a holographic image

An interactive displaying apparatus for achieving displaying of a holographic image, comprising a display unit, wherein the apparatus comprises:

• a signal detecting unit, being formed by a plurality of pairs of signal transmitters and signal receivers arranged in matrices, being configured to scan a 3D space by controlling the signal transmitters to transmit signals and to determine a target object in the 3D space according to a signal received by any of the signal receivers from a corresponding one of the signal transmitters, wherein each of the signal receivers is disposed corresponding to one of the signal transmitters and at a position in the matrix that is identical or adjacent to that of the corresponding one of the signal transmitters, and each of the signal receivers is only able to receive a reflected signal formed by the signal transmitted by the corresponding signal transmitter when being reflected by the target object;
• a position determining unit, being configured to determine a position S, in the matrix, of the one of the signal receivers arranged in the matrix that receives the signal transmitted by the corresponding signal transmitter, and determine a distance L between the determined signal receiver and the target object;
• and is further configured to determine a first position of the target object according to the position S and the distance L;
• and
• a display control unit, being configured to control the display unit to display a viewable image corresponding to the target object at a second position of a display region according to the first position of the target object determined by the position determining unit, wherein the second position has a mapping relationship with the first position;
• wherein the signal detecting unit is further configured to detecting whether any of the signal receivers arranged in the matrix receives a signal;
• if there is any of the signal receivers that has received a signal, then determine whether label information carried in the received signal matches label information of the signal receiver, wherein the label information carried by the signal is carried when the signal is transmitted by the signal transmitter, and the label information matches the label information of the signal receiver corresponding to the signal transmitter;
• and if the label information carried by the received signal matches the label information of the signal receiver, then determine that the target object is located in the 3D space.