Troubleshooting; False Alarms; Quick Solution To Solve False Alarms; False Alarms Under 4 Seconds Concerning The Whole Detection Area - Bosch AVIOTEC IP starlight 8000 Operation And Commissioning Manual

42 en | Troubleshooting
9

Troubleshooting

The following issues can be solved in the detection settings (Configuration > Alarm > Fire
detection).
9.1

False Alarms

9.1.1

Quick solution to solve false alarms

A fast way to identify and solve region-stable false alarms in the camera image is automasking.
The system automatically generates predefined masks from the alarm memory.
Navigate to Configuration > Alarm > Fire detection.
2. Select Automask.
3. Select Set to confirm the changes.
Refer to
–
9.1.2

False alarms under 4 seconds concerning the whole detection area

In this case the general settings of the fire detection have to be adjusted.
Problem
Short false alarms for smoke detection.
Short false alarms for flame detection.
9.1.3

False alarms at small constant areas

Individual image areas are affected and have to be adjusted.
Problem
Objects cause flickering motion, e.g. shadow
of a flag in the wind.
Continuous motion in the picture causes false
alarms, e.g. escalators.
Temporary motion causes false alarms, e.g.
roller shutter.
2020.08 | 01 | F.01U.391.015
Automask, page 36
Operation and Commissioning Manual
Solution
Increase the duration of smoke detection.
(Smoke> Verification time [s])
Increase the duration of flame detection.
(Flames > Verification time [s])
Solution
Mask out the disturbing image area (for
flame).
Flame detection will be deactivated in this
mask.
Mask out the disturbing image area (for
smoke).
Smoke detection will be deactivated in this
mask.
Mask out the disturbing image area (Add
smoke time region).
Smoke detection will be delayed in this mask.
Bosch Sicherheitssysteme GmbH
AVIOTEC IP starlight 8000