Reduction of the amount of probe-data in telematics services

Telematics services are predicted to spread to many more consumers with the increased availability of free telematics smartphone applications. In these telematics services, servers and consumer devices such as smartphones and car navigation terminals have to communicate large amounts of various types of data by uplink and downlink. Finding methods to decrease the data size for communication is one of the most significant issues in this field because of the cost for consumers and service providers. In this paper, we propose a new data compression method for telematics, which deletes redundant data and applies an appropriate compression method for a situation. Moreover, we evaluated our method with the probe data defined by ISO22837 and report positive results.