Method for switching screen state of terminal, terminal thereof, and computer-readable medium thereof

A terminal, comprising:

• a sound wave transmitting device;
• a plurality of sound wave receiving devices comprising a target sound wave receiving device;
• a memory to store processor-executable instructions;
• a processor configured to:
• transmit, via the sound wave transmitting device, a transmission sound wave when it is detected that a screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency;
• determine a target detection region when a target receiving sound wave is received via the plurality of sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object;
• and
• switch the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.

A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a terminal, causes the terminal to perform a method for switching a screen state of the terminal, the method comprising:

• transmitting a transmission sound wave when it is detected that the screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency;
• determining a target detection region when a target receiving sound wave is received through a plurality of pre-installed sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object;
• and
• switching the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.