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Hollysys Automation Technologies Ltd. provides automation and control technologies and applications to customers in the industrial, railway, subway, and nuclear industries in the People's Republic China, south-east Asia, and the Middle East. It offers distributed control systems, which are networks of controllers, sensors, actuators and other devices that can be programmed to control outputs based on input conditions and/or algorithms; programmable logic controllers that are small computer devices installed on machines or equipment; and train control centers (TCC), which monitor route condition, track status, train schedules, distance between trains, and the working status of other essential function devices. The company also provides automatic train protection system that acts as a train over-speed protection mechanism, which collects real-time information, such as speed limit ahead, train operation status, line data, and instructions from TCC; and combines it with the train parameters to produce train protection curves. In addition, it offers HOLLiAS NMS proprietary control systems that used for non-safety operation control in nuclear power industry; surveillance control and data acquisition system, an open software platform that enables the integrated and unified monitoring of sub-systems of the subway, including the power supervisory control and data acquisition system, building automatic system, fire alarm system, platform screen door system, access control system, closed circuit television, passenger information system, passenger train information system, and alarm system. The company was formerly known as HLS Systems International Ltd. and changed its name to Hollysys Automation Technologies Ltd. in July 2009. Hollysys Automation Technologies Ltd. was founded in 1993 and is headquartered in Beijing, the People's Republic China.