Module apparatus for garbage collection and operation method for module apparatus

A module apparatus for garbage collection, the apparatus comprising:

• a case which is attached to a garbage receptacle, and has a first hole on the bottom;
• an integrated circuit module which is accommodated in the case;
• a battery configured to supply power to the integrated circuit module;
• a sensor unit which is electrically connected to the integrated circuit module and is configured to sense a volume of garbage accumulated in the garbage receptacle, wherein:
• the first hole is aligned with a second hole formed on the garbage receptacle;
• and
• the sensor unit senses the volume of garbage via the first hole and the second hole which are aligned;
• and
• a communication unit configured to wirelessly transmit information sensed by the sensor unit to a remote server, wherein the communication unit is further configured to:
• determine an initial signal strength by measuring strength of signals received from each of two or more base stations at an initial operation;
• and
• determine a signal strength variation from the initial signal strength by measuring the strength of the signals received from each of the two or more base stations after the initial operation,
• wherein the module apparatus for garbage collection detects a location change of the module apparatus based on the determined variation.