OMITTED

摘要

PURPOSE: A data logger capable of providing two-way communication is provided to secure the integrity of information by accurately receiving specific time information according to the request of a user. CONSTITUTION: A data logger(200) includes a memory unit(210), a wireless communication unit(220), an analysis unit(230), a control unit(240), and a power supply unit(250). The memory unit stores measuring information and measuring time. The wireless communication unit wirelessly transmits the stored measuring information to a remote area and receives a request signal from the remote area. The analysis unit analyzes a communication situation when the wireless communication unit wirelessly transmits the measuring information to the remote area. The control unit controls the memory unit and the wireless communication unit. The power supply unit is respectively connected with the measuring sensor and supplies voltages.