A system comprising: a plurality of sensors, each sensor of the plurality of sensors operating independently of the other sensor or sensors of the plurality of sensors to perform at least: a monitoring function acquiring sensor data indicative of a common physiological parameter, and a signal quality grading function performed occasionally to assign a current signal quality grade for the sensor wherein the current signal quality grade is indicative of operational status of the monitoring function of the sensor, wherein the common physiological parameter is monitored by more than one sensor through a variety of technologies; a data structure (44, 44') storing information pertaining to the plurality of sensors including at least time invariant priorities reflecting the expected accuracy or robustness versus interferences of the plurality of sensors respective to the common physiological parameter, said information further including the current signal quality grades for the sensors of the plurality of sensors; at least one device selected from a group consisting of the plurality of sensors and a data aggregator device operating to perform a coordination function (46, 46') to select an output sensor from the plurality of sensors based on content of the data structure (44, 44') including at least the priorities and the current signal quality grades of the sensors of the plurality of sensors and a latency time for each sensor; and said output sensor operating to perform at least one output function generating an output signal conditional upon content of the data structure, and wherein the at least one output function comprises: a beacon function performed conditional upon the sensor being the selected output sensor wherein the beacon function outputs a beacon signal to the other sensor or sensors of the plurality of sensors indicating a synchronization time; wherein each sensor of the plurality of sensors further operates to perform a sync function performed conditional upon the sensor not being the selected output sensor that shifts a time base of sensor data acquired by the monitoring function of the sensor based on the synchronization time and the latency times of the sensor and the selected output sensor. a plurality of sensors, each sensor of the plurality of sensors operating independently of the other sensor or sensors of the plurality of sensors to perform at least: a monitoring function acquiring sensor data indicative of a common physiological parameter, and a signal quality grading function performed occasionally to assign a current signal quality grade for the sensor wherein the current signal quality grade is indicative of operational status of the monitoring function of the sensor, wherein the common physiological parameter is monitored by more than one sensor through a variety of technologies; a monitoring function acquiring sensor data indicative of a common physiological parameter, and a signal quality grading function performed occasionally to assign a current signal quality grade for the sensor wherein the current signal quality grade is indicative of operational status of the monitoring function of the sensor, wherein the common physiological parameter is monitored by more than one sensor through a variety of technologies; a data structure (44, 44') storing information pertaining to the plurality of sensors including at least time invariant priorities reflecting the expected accuracy or robustness versus interferences of the plurality of sensors respective to the common physiological parameter, said information further including the current signal quality grades for the sensors of the plurality of sensors; at least one device selected from a group consisting of the plurality of sensors and a data aggregator device operating to perform a coordination function (46, 46') to select an output sensor from the plurality of sensors based on content of the data structure (44, 44') including at least the priorities and the current signal quality grades of the sensors of the plurality of sensors and a latency time for each sensor; and said output sensor operating to perform at least one output function generating an output signal conditional upon content of the data structure, and wherein the at least one output function comprises: a beacon function performed conditional upon the sensor being the selected output sensor wherein the beacon function outputs a beacon signal to the other sensor or sensors of the plurality of sensors indicating a synchronization time; wherein each sensor of the plurality of sensors further operates to perform a sync function performed conditional upon the sensor not being the selected output sensor that shifts a time base of sensor data acquired by the monitoring function of the sensor based on the synchronization time and the latency times of the sensor and the selected output sensor. a beacon function performed conditional upon the sensor being the selected output sensor wherein the beacon function outputs a beacon signal to the other sensor or sensors of the plurality of sensors indicating a synchronization time; wherein each sensor of the plurality of sensors further operates to perform a sync function performed conditional upon the sensor not being the selected output sensor that shifts a time base of sensor data acquired by the monitoring function of the sensor based on the synchronization time and the latency times of the sensor and the selected output sensor.