VIDEO SURVEILLANCE AT METRO STATIONS

Abstract

Metro needs efficient and reliable system of video surveillance to ensure safety and security of passenger flow and of the staff during maintenance works. The use of wireless Wi-Fi networks and IP-technology at the metro stations has some evident advantages as compared to analog surveillance systems. One of those advantages relates to the capacity of IP-system to transmit recorded data by Internet, to use also local wired and Wi-Fi networks. IP-cameras have a built-in movement detector that allows monitoring migration of an observed object within the determined area. The article pays special attention to the choice of placement of Wi-Fi equipment as metro is a territory with utmost number of sources of electromagnetic fields that could interfere with wireless network and influence its quality.