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          Railway Real-time CCTV System

          The Railway CCTV System is an important part of the construction of the urban subway operation system. The system monitors the real-time video images of the running subway trains and records these video images for the subway operating company and subway public security branch to timely grasp the passenger room situation Facilitating subway operation management and security prevention is a part of building a safe China, which is conducive to social harmony and development.

          Maiwe Solution

          The vehicle-mounted image monitoring system is mainly composed of vehicle-mounted camera, vehicle-mounted video encoder, industrial Ethernet ring network switch, vehicle-mounted network video recorder and power supply system. The in-vehicle LAN consists of a MIGE7008G Gigabit industrial Ethernet switch in each compartment and the front and rear cabs to form a Gigabit redundant self-healing ring network. The industrial Ethernet switch of the Maiwei ring network supports the self-healing ring network technology, which can automatically recover when the transmission medium breaks, ensuring that the self-healing time of each node is less than 5 milliseconds; the ring network self-healing time of 6 nodes 30 milliseconds.

          The subway adopts 6 groups, each compartment is equipped with two color fixed hemisphere fixed focus cameras, and a color fixed hemispheric fixed focus camera with recording function is installed in the front / rear cab. Each train has a total of 14 cameras, of which 12 monitor the inside of the car, 2 monitor the driving console and the outside of the car. The on-board video encoder adopts H.264 video encoder, and each encoder is connected to the camera in a one-to-one correspondence through a shielded cable. Each encoder is connected to the 10/100 / 1000M Ethernet port on the vehicle industrial Ethernet switch MIGE7008G through its own independent 10 / 100M Ethernet port. The video encoder can send 2 video streams with different bit rate at the same time, one of which can be set as a constant bit stream for the car recorder to record; the other 1 can be dynamically adjusted according to the bandwidth of the wireless system, thus simultaneously Ensure the quality of car video and real-time image quality on the ground.

          System structure diagram

          Key Products

          Typical Application