Abstract: Techniques for adjusting the strengths of signals received from a transmitter based on the transmitter's likely location are disclosed herein. An example method includes receiving, by one or more processors, location information corresponding to one or more respective areas expected to be visited by an individual; receiving, by the one or more processors, measurements indicative of signal strengths of one or more signals transmitted by a transmitter associated with the individual and received by one or more receivers configured to receive one or more signals transmitted by the transmitter, the one or more receivers being positioned at respective receiver locations corresponding to one or more respective areas; and adjusting, by the one or more processors, the received measurements indicative of the signal strengths of the one or more signals transmitted by the transmitter based on the one or more respective areas expected to be visited by the individual.

Abstract: A dual drive system for a hydraulic pump and an air boost compressor is provided. Reversible power is transmitted to a shaft connected to clockwise and counterclockwise over-running clutches connected to different vehicle or equipment subsystems. Reversing the drive allows power to be alternately transmitted to one or the other of the subsystems. The invention includes utilizing the dual drive for hydraulic and air conditioning systems for an aircraft, with the provision of an additional drive motor providing constant power to one or more of the subsystems.

Abstract: A dual drive system for a hydraulic pump and an air boost compressor is provided. Reversible power is transmitted to a shaft connected to clockwise and counterclockwise over-running clutches connected to different vehicle or equipment subsystems. Reversing the drive allows power to be alternately transmitted to one or the other of the subsystems. The invention includes utilizing the dual drive for hydraulic and air conditioning systems for an aircraft, with the provision of an additional drive motor providing constant power to one or more of the subsystems.

Abstract: A dual drive system for a hydraulic pump and an air boost compressor is provided. Reversible power is transmitted to a shaft connected to clockwise and counterclockwise over-running clutches connected to different vehicle or equipment subsystems. Reversing the drive allows power to be alternately transmitted to one or the other of the subsystems. The invention includes utilizing the dual drive for hydraulic and air conditioning systems for an aircraft, with the provision of an additional drive motor providing constant power to one or more of the subsystems.

Abstract: A signal system 10 for a vessel such as an aircraft, incorporates nodes 16A, B, C arranged in a hierarchy. Low level nodes 16C are associated with plant 14 of the aircraft. Mid-level nodes 16B can communicate with groups of low level nodes 16C, grouped by proximity. A top level node 16A can communicate with all mid-level nodes 16B. Decision making capability is built into nodes 16, to allow decisions to be taken at the lowest hierarchical level at which all of the necessary information is available.