Invention Grant
US09292978B2 Method and apparatus for reducing data transfer rates from a vehicle data logger when a quality of the cellular or satellite link is poor 有权
当蜂窝或卫星链路的质量差时,用于降低来自车辆数据记录器的数据传输速率的方法和装置

Method and apparatus for reducing data transfer rates from a vehicle data logger when a quality of the cellular or satellite link is poor
Abstract:
System and method for reducing data transfer rates when a quality of the cellular or satellite link (i.e., a long range wireless data link) is poor. Such a concept is particularly well suited to embodiments where the vehicle data being logged or collected includes position data, because consumers of vehicle data that includes position data often desire to have such data exported from the vehicle on frequent basis, so that the physical location of fleet vehicles can be tracked in real-time. In one embodiment, before transmitting data a current location of the vehicle is checked against known bad locations, and no data is sent when the current location is known to be bad. In another embodiment, if successful data transmission is not confirmed during a first time period, additional transmission attempts are delayed for a second time period.
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