anti- passback
DESCRIPTION
Anti- Passback. Controlling flow and occupancy. Overview. Named after ‘ passback ’ – passing back a card after going through a door / gate / turnstile FEATURES: Preventing misuse of cards Tracking and/or restricting the number of people in an area - PowerPoint PPT PresentationTRANSCRIPT
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Anti-Passback
Controlling flow and occupancy
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Overview• Named after ‘passback’ – passing back
a card after going through a door / gate
/ turnstile
• FEATURES:– Preventing misuse of cards– Tracking and/or restricting the number of people in an
area– Triggering system events based on area occupancy– Interlocking of reader use based on the cardholder
location
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Site Suitability• Determine Entry/Exit points
– Must be controlled = No ‘sneaking’ in/out
• Controller Grouping– GAPB areas can be used across multiple controllers
• Preparedness for violations– Who will fix the problems?
• Type of enforcement– Soft & timed options
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Site Suitability
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Misuse / Flow Control
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Misuse / Flow Control
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Track / Restrict• Maintains count of people in area
• Two man rule (minimum occupancy)
• Restrict maximum occupancy
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Event Triggers• Control system based on occupancy
Example: Display area status by lights connected to relay
1. Create Internal Variable(s) for relay control
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Event Triggers, cont.2. Assign Internal Variable to APB area with occupancy requirement
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Interlocking• Must enter an area before using
readers in the area
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Interlocking, cont.
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Global Anti-Passback• Allows Anti-Passback to cover whole site no matter how many
controllers.
• Uses software in addition to hardware to track cardholders at all times
Area 1
Controller AArea 2
Controller B
Global Area ‘OUT’
1. Cardholder must Exit Area 1
2. Then can Enter Area 2
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Area Control• Areas can be monitored and controlled in Alarm mode• Operator can control the area (open/close) can also
move users or grant free pass
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Reset/Closing• Resetting status will put allow all
users one ‘free pass’– Next card read will determine area– Doesn’t empty an area
• Users can be granted ‘free pass’ individually
• Areas can be closed which will not allow entry—exit is still allowed– Controlled by Internal Variable– Can be manually closed in Alarm Mode
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Area Types• Each type of Global Area can have a
separate type to simplify Mustering
Hazardous - An area that should be evacuated in the case of an emergency on the site. Hazardous areas can contain Sub Areas as well as have Safe Areas linked to them. Normal - An area that is not subject to evacuation in case of an emergency. The standard type for all areas if mustering is not used in the system. Safe - An area, such as a muster point or safe haven, where cardholders should report in case of an emergency on-site.
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Mustering• The goal of mustering is to move all
people out of hazardous areas and have an accurate count of who might remain
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Mustering Reports• Historical Mustering can show status
of area at a point back in time
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What about…?• What type of Anti-passback control is
suitable for large perimeters?
• How to set up a suitable mustering plan?
• What cases might make anti-passback unreliable?