## 2 Background
### IoXT Status and Cases  
IoXT refers to IoT technology applied in various industries. When IoT is applied to the automobile field, it is called IoVT (Internet of Vehicle Things), while the medical field uses IoMT (Internet of Medical Things). Automation services through the IoT can improve the quality of our lives and work. The Korea Intelligent Internet of Things Association divides IoT into 12 service fields, as listed in Table 3[10]. Table 3 summarizes the main implementation functions for each IoT service field. \begin{table}
\begin{tabular}{l l l} \hline \hline
**Field** & \multicolumn{2}{c}{**Implementation Feature**} \\ \hline \multirow{3}{*}{Healthcare, medical, welfare} & - & Health and activity status management and analysis \\  & - & Parental monitoring and notification \\  & - & Psychological stability indicator \\ \hline \multirow{3}{*}{Energy} & - & Monitoring and reduction of system power consumption \\  & - & Battery status monitoring \\  & - & Energy data visualization \\ \hline \multirow{3}{*}{Produce} & - & Automation of repetitive tasks \\  & - & Real-time monitoring of industrial environment \\  & - & Increase equipment operation efficiency \\ \hline \multirow{3}{*}{Smart home} & - & Remote home management \\  & - & Home security improvement \\  & - & Systematization of common space in multi-family \\  & - & residential areas \\ \hline \multirow{3}{*}{Finance} & - & Simplification of payment \\  & - & Biometric authentication security \\ \hline \multirow{3}{*}{Education} & - & Automatic attendance system \\  & - & Electronic library \\  & - & Online classes \\ \hline \multirow{3}{*}{National defense} & - & Unmanned systems such as unmanned mobile devices \\  & - & and networks \\  & - & Advancement of surveillance and reconnaissance \\  & - & technology \\ \hline \multirow{3}{*}{Agriculture, forestry, fisheries} & - & Industrial environment data collection \\  & - & Remote monitoring/management \\  & - & Increase production efficiency using big data \\ \hline \multirow{3}{*}{Automobile, transportation, aviation, space, shipbuilding} & - & AI-based video analysis system \\  & - & Automatic integrated management of parking lots \\  & - & Real-time traffic relay \\ \hline \multirow{3}{*}{Sightseeing and sports} & - & Recommend customized tour packages \\  & - & Recommend travel routes based on user location \\  & - & Provide customized exercise recommendations and \\  & - & activity data \\ \hline \multirow{3}{*}{Retail/logistics} & - & Logistics warehouse management system \\  & - & Increase transportation and equipment operation \\  & - & efficiency \\  & - & Unmanned delivery box operation \\ \hline \multirow{3}{*}{Construction/facility management/safety/environment} & - & Building, network security \\  & - & Remote monitoring of building condition \\ \cline{1-1}  & - & Increase building energy management efficiency \\ \hline \hline \end{tabular}
\end{table} 
Table 3: IoXT Service Fields. IoT applications in the energy management field include power plants for energy production and systems for reducing energy use. In energy generation management, IoT technology is used to collect data from devices that generate energy with sensors, send the data to a server, and track real-time power production. In building energy management, sensors placed throughout the building detect the indoor temperature and adjust heating and cooling accordingly or operate by collecting power consumption data [11]. In the manufacturing sector, IoT can be applied to safety systems. It is possible to standardize repetitive field work by collecting and analyzing data from the manufacturing site, monitor temperature, humidity, harmful gases, dust, air pollutants, etc., using IoT sensors, and manage the work environment safely. In addition, it is possible to reliably control the power supply (On/Off) of facilities by identifying the presence of personnel in the field.