Abstract: A method for navigating an aerial vehicle from a first location to a second location, wherein the aerial vehicle having a localization system, the method including guiding the aerial vehicle according to a ground navigation map from the first location to the second location.

Abstract: A method for determining the location of a frequency receiver device with respect to at least two frequency originator devices, each of a current location, the method including synchronizing a clock of the frequency receiver device with a clock of one of the at least two frequency originator devices; receiving by the frequency receiver device, a message including an identification code configured for identifying one of the at least two frequency originator devices and obtaining a broadcast time and a current location of the one of the at least two frequency originator devices by looking up a table correlating the at least two frequency originator devices and their respective broadcast times and current locations; calculating a time of flight of the message by calculating the difference between a receive time at which the message is received by the frequency receiver device and the broadcast time.

Abstract: A mobile device case for functional connection and physical attachment to a mobile device, the mobile device case comprises an application adapted to run in the mobile device and a cradle configured for removable attachment with the mobile device, the cradle comprising a controller capable of functional connection with the application, where the cradle is adapted to protect the mobile device while attached to the mobile device and the cradle is adapted to functionally pair with the application to create at least a portion of a mesh network.

Abstract: A method for calibrating a frequency receiver device (FRD) includes obtaining an image of a visually unique object having a visually unique pattern, the visually unique object disposed at a known location; detecting a match by comparing the pattern to a list of pre-determined patterns; upon detecting a match, determining a relative location of the FRD from the pattern based on the pattern and a new broadcast frequency of a frequency originator device (FOD) from a lookup table correlating a plurality of patterns, their corresponding known locations and a broadcast frequency of at least one corresponding FOD for each of the plurality of patterns and determining the location of the FRD from the FOD based on the relative location of the FRD from the known location of the pattern; and synchronizing a clock of a FRD and a clock of a FOD based on said new frequency of the FOD.

Abstract: A mobile device case for functional connection and physical attachment to a mobile device, the mobile device case comprises an application adapted to run in the mobile device and a cradle configured for removable attachment with the mobile device, the cradle comprising a controller capable of functional connection with the application, where the cradle is adapted to protect the mobile device while attached to the mobile device and the cradle is adapted to functionally pair with the application to create at least a portion of a mesh network.

Abstract: A mobile device case for functional connection and physical attachment to a mobile device, the mobile device case comprises an application adapted to run in the mobile device and a cradle configured for removable attachment with the mobile device, the cradle comprising a controller capable of functional connection with the application, where the cradle is adapted to protect the mobile device while attached to the mobile device and the cradle is adapted to functionally pair with the application to create at least a portion of a mesh network.

Abstract: A method for synchronizing a clock of a frequency originator device (FOD) and a clock of a frequency receiver device (FRD), the method including disposing an information storage device at a known distance from the FOD, wherein a broadcast frequency of the FOD and the known distance are configured to be stored in the information storage device; obtaining by the FRD, the known distance between the FOD and the FRD and the broadcast frequency of the FOD; receiving a broadcast of the FOD by said FRD at the broadcast frequency according to the FRD's clock time at T2, wherein the broadcast was made at time t1 according to the FOD's clock time; calculating a time of flight (TOF) based on the known distance and the broadcast speed; and incorporating a time correction=T2?(t1+TOF) in calculations of TOF between the FOD and the FRD.