Indoor fire monitoring based on look-up-from-floor sensing of ceiling

An indoor-fire monitoring system for monitoring progress of a fire in an indoor environment, the indoor environment having a ceiling and a floor, the system comprising:

• a plurality of sensors for sensing a body of smoke and flame risen near the ceiling, an individual sensor deployed at a selected location of the floor being configured to be responsive to a deployment command by disposing the individual sensor on, beneath or over the floor such that the individual sensor is closer to the floor than to the ceiling and such that a sensing direction of the individual sensor is oriented vertically towards the ceiling, allowing the individual sensor to remotely sense the body of smoke and flame while avoiding the individual sensor to approach or contact the body of smoke and flame;
• and a computing server communicable with the individual sensor, the computing server being configured to:
• upon determining that the fire has occurred, immediately deploy the plurality of sensors to sense the body of smoke and flame by executing a deployment process, wherein the deployment process comprises sending the deployment command to the individual sensor, commanding the individual sensor to remotely sense the body of smoke and flame in a vertical direction towards the ceiling to thereby generate a sequence of sensed data measured for the selected location, and commanding the individual sensor to transmit the sequence of sensed data to the computing server;
• receive a plurality of sensed-data sequences generated from the plurality of sensors at respective selected locations of the floor;
• and analyze the plurality of sensed-data sequences to determine the states and dynamics of the body of smoke and flame over the respective selected locations of the floor, thereby allowing the states and dynamics of the body of smoke and flame to be holistically monitored even at an early stage of the fire;
• wherein:
• the plurality of sensors comprises one or more selected sensors installed beneath the floor with a corresponding sensing direction of an individual selected sensor being oriented vertically towards the ceiling;
• and
• wherein:
• the individual selected sensor is configured such that when the individual selected sensor receives a corresponding deployment command from the computing server, the individual selected sensor is raised to fully or partially expose the individual selected sensor above the floor for remotely sensing the body of smoke and flame.