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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
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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 • Triggering system events based on area occupancy • Interlocking of reader use based on the cardholder location
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
Track / Restrict • Maintains count of people in area • Two man rule (minimum occupancy) • Restrict maximum occupancy
Event Triggers • Control system based on occupancy Example: Display area status by lights connected to relay 1. Create Internal Variable(s) for relay control
Event Triggers, cont. 2. Assign Internal Variable to APB area with occupancy requirement
Interlocking • Must enter an area before using readers in the area
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 Area 2 Controller A Controller B 2. Then can Enter Area 2 1. Cardholder must Exit Area 1 Global Area ‘OUT’
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
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 closedwhich will not allow entry—exit is still allowed • Controlled by Internal Variable • Can be manually closed in Alarm Mode
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.
Mustering • The goal of mustering is to move all people out of hazardous areas and have an accurate count of who might remain
Mustering Reports • Historical Mustering can show status of area at a point back in time
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?