CPC Class H04W

A road surface evaluation apparatus includes a microprocessor and a memory connected to the microprocessor. The memory stores map information including roughness information indicating a roughness of a surface of a road, and the microprocessor is configured to perform: acquiring as driving information of a plurality of vehicles driving on the road, position information of the plurality of vehicles, acceleration information indicating accelerations of the plurality of vehicles, driving image information including a captured image of the surface of the road, and driving sound information indicating driving sound of the plurality of vehicles; evaluating the roughness of the surface of the road based on the driving information of the plurality of vehicles; and updating the roughness information corresponding to the road stored in the memory based on an evaluation result in the evaluating.

Disclosed are systems, methods, and non-transitory computer-readable media for customized vehicle operator workflows. A vehicle operator workflow includes a set of tasks to be completed by a vehicle operator. The vehicle operator workflow may be presented to the vehicle operator upon satisfaction of a triggering event, such as upon the vehicle operator logging into an account or the vehicle entering a specified geographic region. The vehicle operator workflow may enable the vehicle operator to complete the individual tasks as well as submit evidence that the tasks have been completed.

A method of extending connectivity of a recipient vehicle may be executed by a non-transitory computer-readable medium. During an ignition off state of the recipient vehicle, the method includes disabling a recipient cellular network access device (NAD) of the recipient vehicle and connecting to a low power communications source. The method includes communicating with a centralized location over the low power communications source. The low power communications source may be a recipient Bluetooth® low energy (BLE) within the recipient vehicle. The method may include connecting to a donor vehicle proximate the recipient vehicle. The donor vehicle includes a donor NAD and a donor BLE, such that the donor NAD of the donor vehicle communicates with the centralized location on behalf of the recipient vehicle.

Methods for tracking a signal origin by a spectrum analysis and management device are disclosed. Signal characteristics of other known emitters are used for obtaining a position of an emitter of a signal of interest. In one embodiment, frequency difference of arrival technique is implemented. In another embodiment, time difference of arrival technique is implemented.