Abstract: In some embodiments, computer implemented methods, systems, and computer readable media can receive a notification from at least one of a plurality of notification nodes. The notification can be associated with a target user. Information related to the target user can be acquired. Information related to the plurality of notification nodes can be acquired. The plurality of notification nodes can be ranked based on at least one of the information related to the target user or the information related to the plurality of notification nodes. Then one or more notification nodes that satisfy one or more specified ranking criteria can be selected. The notification can be formatted based on at least one of the information related to the target user or information related to the one or more selected notification nodes. The formatted notification can then be transmitted to the one or more selected notification nodes.

Abstract: In some embodiments, computer implemented methods, systems, and computer readable media can receive a notification from at least one of a plurality of notification nodes. The notification can be associated with a target user. Information related to the target user can be acquired. Information related to the plurality of notification nodes can be acquired. The plurality of notification nodes can be ranked based on at least one of the information related to the target user or the information related to the plurality of notification nodes. Then one or more notification nodes that satisfy one or more specified ranking criteria can be selected. The notification can be formatted based on at least one of the information related to the target user or information related to the one or more selected notification nodes. The formatted notification can then be transmitted to the one or more selected notification nodes.

Abstract: Binary motion events are detected by individual motion sensors placed in a physical environment. The motions events are transmitted to a cluster leader, each motion detector being a cluster leader of immediately spatially adjacent motion sensors. Movements of objects are detected by the cluster leaders according to the motion events. The movements are transmitted to supercluster leaders, each motion detector being a supercluster leader of immediately spatially adjacent motion clusters of sensors. Activities of the objects are detected by the supercluster leaders, and actions of the objects are detected according to the activities.