Patent ID: 11860043
Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G  A  H | IPC A  G  H

Claim 5:
6. The method of claim 1 further comprising: installing one or more fifth sensors in the indoor environment before occurrence of the fire such that an individual fifth sensor is held in an infrastructure sensor holder mounted to the ceiling, the one or more fifth sensors being included in the plurality of sensors, the individual fifth sensor being connected to the infrastructure sensor holder through a connecting member having a length shorter than a distance between the ceiling and the floor, the distance being measured at a corresponding selected location of the floor for deploying the individual fifth sensor; wherein the disposing of the plurality of sensors on, beneath or over the floor includes releasing the individual fifth sensor from the infrastructure sensor holder such that the individual fifth sensor is lowered towards and hangs over the floor.