Defecation/urination detection system and method

A defecation/urination detection method, comprising:

• a first step of performing initialization and then registering an excretion detection tag if registration of the excretion detection tag is requested;
• a second step of maintaining a detection operation of the excretion detection tag if an operating signal is generated by the registered excretion detection tag;
• a third step of, if no operating signal is generated by the registered excretion detection tag, determining that a diaper has been contaminated, and performing control so that an alarm is generated, thereby notifying a guardian of the detection of excretions;
• a fourth step of releasing the alarm if release of the alarm is requested by the guardian after the alarm has been generated;
• and
• a fifth step of providing notification of a state of the detection of excretions to the guardian's mobile terminal if release of the alarm has not been requested until a preset specific time has elapsed after the generation of the alarm.

A defecation/urination detection method, comprising:

• a first step of performing initialization, and registering a defecation/urination detection tag if registration of the defecation/urination detection tag has been requested according to a low-power tag registration procedure;
• a second step of detecting an energy level of a signal generated by the registered defecation/urination detection tag and then detecting a sensitivity;
• and
• a third step of analyzing the detected sensitivity, and, if there is a change in sensitivity attributable to defecation/urination, determining that defecation/urination has been detected and generating an alarm and a display.

An excretion detection tag, comprising:

• a lower protective film;
• an adhesive part formed on the lower protective film;
• an antenna pattern formed on the adhesive part, and configured to detect excretions;
• and
• an upper protective film configured to prevent the antenna pattern from being damaged when the antenna pattern is not in use.

A defecation/urination detection tag, comprising:

• a lower protective film on a bottom of which an adhesive part configured to be attached to a wearing target is formed;
• an antenna pattern formed on the lower protective film, and configured to detect defecation/urination;
• a tag chip attached onto the antenna pattern, and configured to be responsible for exchanging a wireless signal with an RFID reader;
• and
• an upper protective member configured to protect the antenna pattern and the tag chip.

An RF reader, comprising:

• an antenna configured to receive a transmission signal from an excretion detection tag;
• a band filter configured to filter the signal received via the antenna based on a specific band;
• a signal processing unit configured to process the signal passed through the band filter into digital data;
• a power unit configured to supply power;
• a control unit configured to, if an operating signal is not generated by the excretion detection tag, determine that a diaper has been contaminated, and perform control so that an alarm generation function is performed and an excretion detection message is created and then sent to a mobile terminal carried by a guardian;
• a sound generation unit configured to generate a diaper contamination alarm under a control of the control unit when excretions are detected;
• and
• a communication module configured to send the message over a communication network under a control of the control unit.

An RF reader, comprising:

• an antenna configured to receive a transmission signal output from a defecation/urination detection tag;
• a signal processing unit configured to filter the signal received via the antenna based on a specific band, to perform signal processing the filtered signal, and to output a defecation/urination sensitivity value;
• a power unit configured to supply power;
• a control unit configured to determine that defecation/urination has been detected if there is a change in sensitivity, and to control display of the detection of defecation/urination and generation of an alarm;
• a sound generation unit configured to generate a defecation/urination detection alarm under a control of the control unit;
• a communication module configured to send a state of the detection of the defecation/urination over a communication network under a control of the control unit, thereby sending the state to a remote user device;
• and
• a display configured to visually display the state of the detection of defecation/urination.