Natural gas pipeline station security monitoring system and method

The invention belongs to the field of natural gas pipeline networks, and particularly relates to a security monitoring system and method for a natural gas pipeline station. According to the system, personnel positioning equipment sends personnel position information to data analysis equipment in real time; the video monitoring equipment collects image data; the smoke fire sensing equipment acquires the smoke concentration in real time; the human body sensing equipment acquires motion data of a human body; the data analysis equipment judges whether the behavior of the personnel is abnormal or not according to the personnel position information and the action data; the data analysis equipment analyzes the image data, and when foreign matter invasion exists in an analysis result, surrounding security and protection equipment is controlled to conduct security and protection processing work; and when the smoke concentration exceeds a threshold value, the data analysis equipment gives an alarm and dispatches surrou