A method for access control in an access control system for people or vehicles comprising at least one access control device. In the method the at least one access control device, using a selective modulation of the frequency, spatial modulation and/or optional temporal modulation of light emitted by a specified number of light sources, transmits information that can be received and demodulated by a mobile electronic device having a camera. The information sent by the access control device contains a unique ID of the access control device, which is used to control the access control device in accordance with data transmitted to the access control system by a mobile electronic device which receives the information transmitted.
|Patent number||US20170372530 A1|
|Publication status||Published - 28 Dec 2017|