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This is a setting that requires Access Control System (ACS) users to enter and exit in proper sequence with their parking credential (i.e. entry, exit, entry, exit etc.). Anti-passback is typically selectable as 'hard' and 'soft'.
Hard anti-passback setting rejects the ACS users that are out of sequence and should be set an alarm at the ACS controller and Facility Management System (FMS). In this situation an alarm means a system generated message that indicates a potential problem with equipment or operational rules that have been broken.
This setting allows the out-of-sequence ACS user to enter and exit, but reports and records violations with an alarm at the FMS for follow-up by the parking manager. Soft anti-passback provides a more patron-friendly experience while monitoring for misuse. This setting should be unique for each user.
In both the hard and soft mode, each out-of-sequence event is reported as an exception transaction in the daily ACS access log. Many systems have the capability to clear the anti-passback condition via a password-protected resynchronization of the user's account.
This system is typically internal to a parking facility and provides guidance to open parking spaces. These systems can include dynamic signage and individual floor and space availability indicators. Newer generation parking guidance systems detect individual space occupancy with stall sensors and can also share information with GPS-enabled vehicles and smartphone apps, which extend them beyond a parking garage or surface lot. It can guide traffic searching for parking spaces through a city which improves the traffic flow.
When detecting space occupancy, the system detects the percentage of spaces in a facility that are occupied. Rules can be set to limit the number of parked vehicles based on a schedule. Example: If a facility has a capacity of 100 spaces and 90 of them are occupied, the occupancy is 90 percent.
This system is often used in access and revenue control. The system enables automatic identification of a vehicle when it enters a parking facility so it can be authorized and permitted to enter and exit. AVI access methods include RFID, LPR and Proximity cards.
RFID is an automatic identification method that relies on storing and remotely retrieving data using devices called RFID tags or transponders. RFID is used mainly in access and revenue control facilities and is another form of permit.
This is a vehicle identification technology that uses cameras to take pictures of license plates, read the images via character recognition software, and convert the images into text that a computer can read. LPR is common in access control, tolling and stolen vehicle detection applications. Sometimes LPR is called ANPR, which means Automatic Number Plate Recongnition.
This is a process that uses License Plate Recognition or the manual collection of license plate information via handheld devices to count and keep track of vehicle license plates. It can be used in both controlled access and open facility environments to keep track of vehicles accessing a facility.
A Proximity card is a smart card that can be read without being inserted into a reader device.