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Shenzhen Nanyue Chongguang Optoelectronic Communication Co., Ltd. is a modern high-tech enterprise integrating R & D, manufacturing, production, and sales. The company mainly focuses on highway tunnel emergency telephone and broadcast systems, tunnel area controllers, tunnel programmable controllers, digital public broadcast systems, IP network telephone and broadcast systems, tunnel electromechanical equipment series, etc., and provides solutions for tunnel electromechanical system projects. Shenzhen Nanyue Optoelectronics (a manufacturer of tunnel electromechanical equipment) has over 20 years of professional experience in integrating tunnel software and hardware, with more than 2,000 tunnel projects implemented. Main products: tunnel PLC area controllers, tunnel emergency telephones, emergency broadcast systems, LED variable message signs, lane indicators, CO/VI detectors, wind speed and direction sensors, luminance detectors, emergency stop signs, guide lights, programmable controllers, etc.! Tunnel comprehensive management and control system: Coordinate the overall operation and maintenance of the tunnel, integrating ventilation, lighting, fire protection, intercom and broadcasting, monitoring, power distribution, environmental monitoring, LED variable message signs, and emergency dispatching. Real - time monitoring and data uploading are achieved to realize intelligent linkage across the entire area.