Abstract: A method for monitoring a dangerous situation in a space based on a frequency response pattern according to an embodiment includes loading, by a processing unit of a mobile terminal located in the arbitrary space, a setting value corresponding to an operational mode selected through control software installed on the mobile terminal, controlling, by the processing unit, a speaker of the mobile terminal to generate a frequency corresponding to the loaded setting value, receiving the frequency which was generated in the controlling and reflected in the space through a microphone of the mobile terminal, determining, by the processing unit, whether the dangerous situation occurred in the space by comparing the frequency response pattern with a preset reference value, and taking, by the processing unit, a follow-up action when it is determined that the dangerous situation occurred in the space by the determining.

Abstract: An assistive system according to an embodiment of the present disclosure includes a cradle module including a holder body on which a user terminal is to be placed and a drive unit configured to drive the holder body, the cradle module configured to output a terminal connection signal when the user terminal is placed on the holder body, and an assistant server configured to receive the terminal connection signal from the cradle module and execute an assistive service, the assistant server configured to control the drive unit by a preset drive pattern through a drive control signal when executing the assistive service. It is possible to easily and conveniently identify a plurality of assistive services outputted according to each situation by controlling a cradle module through a drive pattern corresponding to an assistive service while outputting a voice corresponding to the assistive service when executing the assistive service.