Gas detection system and method using smart phone

A gas detection system using a smart phone, comprising:

• a sensor module detachably mounted to the smart phone and configured to detect and measure at least one of combustible gases consisting of LNG, LPG, CNG and Freon or at least one of toxic gases consisting of carbon monoxide and carbon dioxide;
• and
• a gas detection APP installed inside the smart phone and configured to acquire measurement data by detecting the combustible gas or the toxic gas and measuring the detected combustible gas or toxic gas through the drive of the sensor module, after automatically recognizing user information and location information by reading a tag embedded in the smart phone, i.e., a radio frequency identification (RFID) tag or a near field communication (NFC) tag indicating a user or a location of gas detection, using a contact unit having built therein an RFID reader or an NFC reader inside the smart phone, wherein the smart phone transmits the user information, the location information and the measurement data acquired from the gas detection APP to an operation server through a communication network;
• and
• a database configured to receive the user information, the location information and the measurement data from the operation server, and store the received user information, location information and measurement data.