A system and method of using a combination of portable devices including wearable devices and tags and fixed devices including plug-in readers that are able to communicate using a short range wireless technology is described. The environment in which the fixed devices are disposed include residential, vehicle and commercial/work areas. The environment is able to detect the presence and absence of particular portable devices, determine whether personalized triggers exist and act accordingly based on information stored in a server or cloud-based storage. The actions in the environment include security, environmental controls, and alert transmission.