COMMUNICATIONS SYSTEMS AND METHODS FOR REMOTELY CONTROLLED VEHICLES

摘要

A remote controller and a remotely controlled vehicle employ, at least in part, frequency hopping spread spectrum communications to communicate information between them. The remote controller transmits information for controlling the remotely controlled vehicle on substantially all of the frequencies of a hop sequence established by the two devices, but only transmits information indicative of the established communications between the devices on a subset of the frequencies of the sequence, the subset of frequencies comprising less than substantially all of the frequencies of the sequence. Additionally, the remote controller continues to transmit the information for controlling the remotely controlled vehicle on substantially all of the frequencies of the sequence even if the remotely controlled vehicle loses communication with the remote controller. A mathematical function is applied to identifiers associated with each device to generate an identifier representative of the established communications link between them.