Skidata Ag

Skidata Gmbh

Walter Lechner

Martin Haidacher

Martin Haslinger

Reinhard Surkau

Roland Aigner

Martin Dr Haidacher

Reinhard Dr Surkau

An access control method for people in which the access control device () is assigned to an access point. Each access control device () has at least one antenna (), which emits beacons. Each access area () can only accommodate one person at a time. All antennas lie on an antenna plane. The transmitted beacons containing a unique access point ID, which positively identifies the access point and a unique antenna ID within predefined intervals. The received beacons are analyzed based on the RSSIs (Received Signal Strength Indicator) such that the distance of the mobile device () to the at least one antenna () is determined. The received access point ID are transmitted to a server () or to the access control device () for analysis. Access is granted if the access authorization is valid for the access point ID.

Access control method for persons and system for carrying out the method

An access control method in an access control system that comprises at least one access control device with an antenna (). Verification of an access authorization is based on analysis of a beacon transmitted by a first wireless communication standard. The beacon contains an ID to which a unique identifier (TID) of the data carrier and a unique beacon ID of the data carrier () transmitting the beacon is assigned. The unique identifier and unique beacon ID allows positive beacon identification. The identification and localization of the data carriers () is realized by analyzing the RSSIs of the transmitted beacons. The unique beacon IDs ensure that the RSSI values of the same respective beacon of a data carrier () are used in the course of the RSSI analysis. The closest data carrier () is determined, during the RSSI analysis, and the transmitted ID is analyzed to grant access.

Access control method for persons and vehicles and system for carrying out the method

For recording and erasure of data on a reversibly writable thermal recording material ( ) with a thermal print head ( ), the heating elements ( ) of the thermal print head for recording are subjected to an energy pulse (W) which causes the recording material to be heated to a temperature (T ) at which it assumes a colored and/or opaque state. For erasure subsequent to the recording pulse (W), the heating elements ( ) are subjected to an energy pulse train (E ).

Method for controlling the heating elements of a thermal print head

Growing community of inventors

Grödig/Salzburg, Austria

Walter Lechner