KEYCAD-Software (Berechnung mechanischer Schließanlagen)

KEYCAD ist ein Softwarepaket zur Berechnung mechanischerSchließanlagen. Potentielle Benutzer der Software sindSchlüsseldienste und Firmen für Sicherheitsanlagen, die amSelbstbau von Schließanlagen interessiert sind. Der Benutzerbestimmt den Schließplan in Absprache mit dem Kunden. DasProgramm errechnet hierzu Schlüsselschnitte und Zylinderfüllungen.Aufgrund dieser Daten kann der Schlosser die Anlage erstellen.Einzelheiten des Berechnungsalgorithmus sind in derProjektbeschreibung erläutert.
Beitrag dazu im Forschungsmarkt 2001 (pdf)

KEYCAD Computation of mechanical master key systems

Problem description:
A master key system realizes access control, in a building. A set ofpeople having access is attributed to every room in this building.For this purpose the rooms are equipped with cylinders and thepeople with keys. This demand is specified by the lockchartThe locksmith who has to fabricate this master key system needs toknow key-cuts and cylinder-fillings. A typical locking system asshown above has keys with five cuts which correspond to fivepin-stacks in the cylinder. In order to realize a master key systemadditional fillers may be inserted in a pin-stack to allow multiplekeys to fit a cylinder. Based on the lockchart the developedsoftware computes key cuts and cylinder-fillings which can beshown in vector and matrix notation. As mentioned above the most important input to the calculationprocedure is the lockchart. In addition further constraints are addedto the problem, mainly arising from the mechanical nature of keysand cylinders. Some of these are defined by European and Germanstandards, such as EN 1303, DIN 18257, DIN 18252.