A data de-duplication method begins by a processing module receiving a plurality of data storage requests from a plurality of requesting devices wherein a data storage request includes the data and a requester identifier. The separated image data is transferred to the source memory, Several pieces of image data are read out in sequence from the transferred image data and forwarded to a filtering process. A data aggregation module in communication with a server is operable to take a data set from each device from a plurality of electrically motorized wheels and aggregate the data to transform the data set into an aggregated data set. This leads to poor transmission quality and to problems of electromagnetic compatability, meaning that only a fraction of the available channel capacity can be used. Therefore, a user can easily and visually recognize reception of an incoming call in noisy environment, or even when riding a motorcycle.