Event monitoring for an event candidate related to an id node within a wireless node network

An enhanced monitoring system that identifies an event candidate within a network of wireless nodes, the system comprising: a server (100) disposed at a higher level within the network of wireless nodes; a plurality of ID nodes (120a-120e) arranged at a low level within the wireless node network, the ID nodes being unable to communicate directly with the server; a master node (110a-110c) arranged at a middle level within the wireless node network as a monitoring intermediary between the ID nodes and the server, wherein the master node further comprises a master node processing unit, a memory storage element coupled to the master node processing unit, the memory storage element holding the event detection engine code for execution by the master node processing unit, a timer coupled to the node processing unit and operative to track an elapsed time after a start event ; a first communication interface coupled to the node processing unit and operative to communicate directly with at least a first one of the ID nodes through a first communication path; a second communication interface coupled to the node processing unit and operative to communicate directly with the server via a second communication path, wherein the first communication path is different from the second communication path; wherein a first one of the ID nodes is adapted to emit at least a first signal via the first communication path; and wherein the master node, by executing the event detection engine code in the master node processing unit, is operative to detect, via the first communication interface, the first signal emitted by the first of the ID nodes, identify the event candidate as a first sighting event related to the first ID node when the master node detects the first signal, generating event data representing the first sighting event after identifying the first sighting event, wherein the event data representing the first sighting event comprises an identifier of the first ID node and further comprises at least timing information and observed signal strength information characterizing the first sighting event, causing the second communication interface to provide the event data representing the first sighting event to the server, monitoring, via the first communication interface, any one of a series of successive signals emitted by the first ID node within a event horizon for the first ID node after detecting the first signal, follow, through the timer, the time elapsed between successive of the first signal and any one in the series of successive signals emitted by the first ID node, following a signal strength indicator value received for the first signal and any one in the series of successive signals emitted by the first ID node, identify the event candidate as a subsequent event related to the first node and within the event horizon starting with the first sighting event, the subsequent event being identified based on the timing information related to the elapsed time followed by the timer and based on the observed signal strength information as indicated by the received signal strength indicator value, generate event data representing the subsequent event as including at least the timing information related to the elapsed time followed by the timer and based on the observed signal strength information as indicated by the received signal strength indicator value , and causing the second communication interface to provide the event data representing the subsequent event to the server; wherein the server is adapted to receive event data representing the first sighting event and event data representing the later event.