Mass Transit Safety Monitoring

Safety Monitoring in Mass Transit SystemsMass transit system operators are increasingly looking to automation to improve safety and increase efficiency of commuter transportation.

The VCODEC-H264-D4 Recording and Preview feature provides all round situational awareness to the train driver for increased passenger safety, while high quality multi-channel video recording provides material for archival and evidential purposes.

The block diagram shows a recent solution for underground/metro commuter trains based on the VCODEC-H264-D4 and provides the following features:-

  • 4 cameras inside car—2 pointing forward, 2 pointing backwards
  • 2 cameras monitoring right and left door closure
  • Groups of 4-6 cameras (plus status from external sensors) display on drivers console with less than 100ms latency
  • Automatic full size recording of each camera for 10 days continuous operation.

System Details

Safety Monitoring in Mass Transit Systems_2



  • 8x Composite NTSC/PAL/RS-170 inputs (system uses 6.)
  • Real time, full size H.264 encoding at full frame rate for each channel.
  • Video Streaming Latency below 100ms for display on drivers console.
  • Per channel video Flipping/Mirroring.
  • Full size, high quality, local storage of each channel for evidential and archival requirements.
  • Display PC uses standard H.264 streaming clients.
  • Display PC can flexibly position and scale video streams as required for display mode.

Products Used


4-Ch H.264 encoder/decoder for PC/104-Plus
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