The Vampire System uses both a series of UWB radars and the base's Cerebro unit to scan the base and the grounds immediately surrounding the building for intruders.
The UWB Radar system scans every part of the house for movement. By default it will also scan areas outside the house to a distance of approximately 60 meters, though data coming from objects beyond about 2 meters from the house will be ignored. A complicated pattern recognition algorithm is used to filter out data obtained from more normal household objects within the house (i.e. pots and pans that may be moved about in the kitchen, swaying plants in pots of known position, doors, refilling toilets of known position, etc). As well as detecting solid objects, the radar will also pick up dense mists.
The base Cerebro system is left constantly running, scanning for any of several exceptional results. Cerebro automatically scans for people in the Villains group out to its maximum range (approximately 16km) and for anyone within the base or on its grounds. As Cerebro scans, it compares the minds it finds to three defined groups: Friendly, Villain, and Unknown.
Friendly refers to people who are registered as safe and whose presence is not cause for alarm. Villain refers to people who are registered as potentially hostile or dangerous and whose presence is cause for alarm. Unknown refers to anyone who has not been assigned to either of the other two groups.
When a non-hostile Unknown visits the house, they should be added to the Friendly group on a temporary basis. This involves assigning the Unknown person to the Friendly group and entering the duration of time the visitor will be considered Friendly: the computer also records the person making the entry. People cannot be assigned to the Friendly group for more than eight (8) hours without permission from the (acting) exective officer. At the end of the duration the the person is automatically returned to the Unknown group.
Adding or removing someone from the Villains group requires the permission of the (acting) exective officer.
The System
When the UWB radar unit detects something moving within its region of interest, the computer will check with the Cerebro unit to determine if there is a Friendly mind or minds at that location. The X-Man on monitor duty is notified if there isn't a Friendly mind at the location. That X-Man will use the base video cameras, if possible, to check for the cause of the movement. In the advent of an intruder or unknown cause of the alert, the various base alarms and communications can be used as appropriate. If a Villain is detected within the base, the Villain alarm will also be automatically set off. When an Unknown is detected in the base or a Villain is detected outside the base, the X-Man on monitor duty is notified.
The Cerebro information gathered from targets within the grounds is also fed through the main computers. Minds found this way will either be cataloged as either Friendly ("ignore"), Unknown ("notify X-Man on monitor duty"), or Villain ("sound Villain alarm"). Once again, the various base alarms and communications can be used as appropriate.
If an Unknown person is detected and no response has been given to Cerebro after one (1) minute the Unknown Intruder alarm will be activated and the location of the intruder sent to all communication watches.
The Vampire System also performs locking tasks if there are no Friendly minds currently within the base or pool area for one (1) minute. All door and front gate locking mechanisms are activated (especially the doors to the monitor room, computer room and armoury) and all computers are set so that they will not allow greater than A-Level access.