The present invention, in the process of monitoring the interior of the coal silo for storing coal, unlike the one with a sensor mounted on the roof, the additional monitoring device is accommodated inside the coal silo and loaded inside the coal silo stacked in a stacked structure. It can be configured to monitor information. In addition, in the monitoring process inside the coal silo, the present invention, when a fire and/or explosion occurs inside, the liquid ejection opening inside the monitoring device is opened to spray liquid to extinguish the fire and/or explosion. Can be configured. In addition, the present invention, the communication module is included in the coal silo monitoring device can be configured to transmit the information observed by the sensor to the external terminal, through which the user can predict the possibility of fire and / or explosion inside the coal silo. Can be configured.
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