Electronic fences have a very wide range of applications. Apart from preventing theft and illegal intrusion, they also protect important equipment and deter deliberate human damage in certain sectors.
According to reports, in 2012 a cooling tower at Xixiang Station on Shenzhen Metro Line 1 caught fire. An investigation found people living around the tower and a large number of cigarette butts, indicating the fire was caused by external factors. The incident served as a wake-up call for the safety of cooling towers and other equipment along other metro lines.
To ensure the normal operation of Shenzhen Metro Line 3, the metro management authority installed an electronic fence perimeter security system around the ground-level cooling towers on the Longgang section, to prevent deliberate damage to the cooling tower equipment that could affect normal metro operations.
Compared with passive defense systems such as infrared beam detectors, an electronic fence system that focuses on blocking and deterrence with alarm alerts as a supplement delivers far more significant results. The electronic fence is one of the most advanced perimeter security products today, widely used at water sources, power plants, substations, high-speed railway stations, residential communities, factories, schools, parking lots, ranches, airports and military facilities. Today, the “protective wall” formed by electronic fences has greatly strengthened the safety of metro facilities, adding a security lock to the smooth running of metro systems.
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