Buried person search device using detachable module

A buried person search device using a detachable module, the device comprising:

• a ground drone deployed at a site of a collapse disaster to travel by driving a track device, the ground drone having a communication device and a first beacon mounted thereon;
• a camera device mounted on the ground drone to photograph surroundings on front, rear, left and right sides of the ground drone and above the ground drone;
• a storage installed on the ground drone;
• a plurality of repeater modules connected by a wireless communication network to relay wireless communications between the ground drone, a flying drone, and a command and control center, each of the repeater modules having a second beacon;
• and
• a sensing device installed on the ground drone or the repeater modules to collect a human breathing sound, a voice, a cell phone sound, and a man-made rhythmic sound,
• wherein the storage accommodates the repeater modules, and throws the repeater modules to the site of the collapse disaster in response to an operation signal,
• wherein the buried person search device is configured to:
• control the ground drone to move to a communication shaded area at the site of a collapse disaster and deploy the repeater modules to establish a wireless communication network;
• control all noise-generating devices among the devices mounted on the ground drone to stop their functions;
• repeat transmitting and stopping of transmission of a rescue announcement voice at regular time intervals;
• receive input voice data or image data when the transmission of the rescue announcement voice is stopped;
• communicate the collected voice data and collected image data and control signals for controlling the respective devices over the wireless communication network;
• analyze one of a human breathing sound, a voice, and a mobile terminal sound from the input voice data and determining a vital sign;
• and
• when a rescue team enters the site of the collapse disaster and approaches the ground drone or the repeater module that has sent a basis for determining a vital sign, recognize, by a first beacon or a second beacon, a terminal carried by the rescue team, and cause the terminal to indicate presence of the ground drone or a repeater module near the rescue team.