Alarm and first responder systems, methods, and devices

An emergency sensor system for a building, the emergency sensor system comprising:

• a plurality of environmental sensors distributed across a plurality of floors of the building;
• and
• a local monitoring station (LMS) connected to each of the plurality of environmental sensors through physical connections, the LMS comprising a transceiver, a processor, and a memory having stored thereon instructions that, when executed by the processor, control the processor to:
• receive, from at least one environmental sensor of the plurality of environmental sensors, sensor data indicative of an environmental state proximate the at least one environmental sensor,
• analyze the sensor data,
• output, to a remote responder system, an alert based on the sensor data,
• detect use of a centralized auxiliary power by the plurality of environmental sensors;
• and
• output, in response to determining use of the centralized auxiliary power by one or more environmental sensors of the plurality of environmental sensors, an alert indicating that a main power source of the one or more environmental sensors is unavailable,
• wherein the LMS is configured to provide centralized auxiliary power from a back-up power source of the LMS to each of the plurality of environmental sensors through the physical connections,
• wherein the plurality of environmental sensors are configured to automate location information,
• wherein the plurality of environmental sensors are configured to automate location information by wirelessly communicating relative positions of the environmental sensors to estimate respective locations of the environmental sensors,
• wherein each of the plurality of environmental sensors are further configured to:
• output wireless directional signals;
• receive wireless directional signals from at least one other environmental sensor of the plurality of environmental sensors;
• and
• estimate respective relative locations of the environmental sensors based on directions and signal strengths of the received wireless directional signals.