Wireless Offline Offload

Current requirements for vehicular video security systems are making it more challenging to handle the ever-increasing amount of video data produced by the video security systems installed within vehicles. Due to different standard regulations and recommendations, and quite often because of the requirements set by the operators themselves, recorded data not only needs to be stored temporarily within a vehicle's security system, but also needs to be transferred from vehicles to ground systems for more permanent storage. Since public transport systems are most of the time 'on-the-move', the time available to transfer the data is limited. Hence, for large fleets of vehicles, wireless transfer, i.e. wireless offload, is preferred over manual swapping of hard disks. Wireless offload, in turn, is not always simple; sometimes it is not even possible to provide sufficient wireless infrastructure for carrying out wireless offload in a timely manner. This paper proposes an alternative wireless offload mechanism, one which allows for cost-efficient offload that is less affected by the insufficient wireless infrastructure.