Monitoring apparatus and controlling method therefor

A method of controlling a monitoring apparatus, which is mounted on a front surface or a rear surface of an object and senses the object and a situation around the object, the method comprising:

• sensing whether there is a target object approaching to within a predetermined distance from at least one of the front surface and the rear surface of the object;
• changing at least one of at least two cameras for receiving an image, corresponding to a direction toward the front surface or the rear surface of the object, to a photographing standby mode according to the sensing result;
• determining whether a predetermined situation occurs, based on a result obtained by sensing the object and the situation around the object;
• and
• performing a function corresponding to a current occurring situation by using at least one of an image received from the at least one camera and the result obtained by sensing the object and the situation around the object, based on the determination result,
• wherein the predetermined situation is a situation where noise equal to or more than a predetermined level occurs, a situation where an impact or vibration which is sensed from the object and is equal to or more than a predetermined level occurs, or a situation where the target object is sensed within a predetermined distance from the object for a predetermined time or more.