Tag and tag position determination device and method

A tag for transmitting a response signal regarding a tag search signal, the tag comprising:

• an antenna receiving, from at least one of a plurality of slave nodes, the tag search signal including identifying data for identifying the tag, and outputting the response signal;
• a harvester including an energy storage element and charging the energy storage element by using the received tag search signal;
• and
• a controller configured to:
• obtain the identifying data from the received tag search signal, determine whether the obtained identifying data matches identification information pre-stored in the tag, and
• control the antenna to output the response signal when the energy storage element is charged to a certain numerical value or above and the obtained identifying data matches the identification information pre-stored in the tag,
• wherein the tag search signal is broadcast from the plurality of slave nodes at a request of a master node.

A non-transitory recording medium having recorded thereon a program for performing a method of transmitting a response signal, which, when executed by a processor of an electronic device, causes the processor to perform a method comprising:

• receiving, from at least one of a plurality of slave nodes, a tag search signal including identifying data for identifying a tag;
• charging an energy storage element inside the tag by using the received tag search signal;
• obtaining the identifying data for identifying the tag from the received tag search signal;
• determining whether the obtained identifying data matches identification information pre-stored in the tag;
• and
• when the energy storage element is charged to a certain numerical value or above and the obtained identifying data matches the identification information pre-stored in the tag, outputting the response signal regarding the tag search signal,
• wherein the tag search signal is broadcast from the plurality of slave nodes at a request of a master node.