3
Chapter 2
VFDS™ system design
VFDS™ is the system detects fire and smoke with videos from the cameras. Security
cameras are the detectors in this system. This chapter describes how to choose, install and
adjust cameras as detectors to cover the required protecting area; design flow chat as follows.
Set protection areas
Investigate field space,
Illumination conditions
Fire hazard analysis and set
fire scenario
Decide VFDS
™
reaction time
Define and estimate fire
detection limit
Calculate the height of flame
and smoke
Calculate camera coverage
Camera fine adjustment and
parameters setting
Does the setting cover the
target area?
NO
YES
Finished
Decide the detection coverage
Change camera
arrangement
