Abstract: A method of managing a network of sensors in an energy aware manner includes the steps of clustering the sensors to minimize energy consumption, routing the network (step 44), modeling the energy available at each sensor (step 45), and rerouting the network (step 47) when the sensor battery level drops to a predetermined value, or when the energy model is adjusted because it deviates from a sensor's actual energy state.

Abstract: A method of managing a network of sensors in an energy aware manner includes the steps of clustering the sensors to minimize energy consumption, routing the network (step 44), modeling the energy available at each sensor (step 45), and rerouting the network (step 47) when the sensor battery level drops to a predetermined value, or when the energy model is adjusted because it deviates from a sensor's actual energy state.

Abstract: An Input/Output device has programmable signal conditioning and signal control circuitry capable of receiving signals, scaling the received signals to a predetermined voltage range, determining signal type for each of the received signals, and controlling input/output circuitry of the programmable signal conditioning and signal control circuitry for accessing input signals and generating output signals. The I/O device further includes conversion circuitry for receiving the output signals and converting the output signals from analog to digital to enable these signals to be digitally processed, and also receives digitally processed signals, converts the digitally processed signals to analog signals, and transmits the analog signals as input signals to the programmable signal conditioning and signal control circuitry.

Abstract: A method for strong partitioning of multi-processor applications that maintains fault containment on the VMEbus is presented. The method implements a message passing mechanism to increase fault tolerance and localize and contain detected faults on any one card connected to a VMEbus. Software implementation supports message-based inter-module communications using the available features provided by the VME cards. A portion of each VME card's global memory is allocated upon initialization for supporting the message passing mechanism. Access to the message buffer is restricted to read-only for modules that do not own that buffer. An error detection or correction code (e.g. cyclic redundancy check) is appended to the end of a data stream message to contain faults and prevent their propagation to other VME cards.