Abstract:
Fernbedienung für technische Geräte umfassend einen passiven RFID-Transponder, der bei einer physikalischen Berührung durch einen Benutzer einen Schaltkontakt auslöst, um Informationen auszusenden, um das technische Gerät zu steuern.
Abstract:
A safety device for photovoltaic plants comprises a disconnecting unit (20), which can be actuated by a remote control so as to electrically disconnect a photovoltaic panel (10) from the string of panels it belongs to, and a control device (60) that periodically checks the correct operation" of each photovoltaic panel (10); in the · absence of a signal (Z) of correct operation coming from a photovoltaic panel, the safety device electrically disconnects the photovoltaic panel from the remainder of the plant.
Abstract:
The invention relates to methods and devices for exchanging control information in mixed radio systems. Security is added in cases where a user of a first wireless device (102) wants to command a second wireless device (101) to perform a certain action. The first and second wireless devices use different radio systems or standards (e.g. WiFi and ZigBee/802.15.4) but their radios do operate on the same frequency band (e.g. 2.4 GHz). To add security, the second wireless device (101) will only accept certain commands if it can detect that the first wireless device (102) is physically close-by. To prove that the first device (102) is close-by, it emits a predetermined energy pattern, e.g., one or more packets (the contents do not matter, while their lengths/time spacing may) using its radio system. At the same time, the second wireless device (101) measures the energy in one or more of its overlapping radio channels to detect that the first wireless device (102) is close by and execute the commanded action.
Abstract:
The present disclosure relates to a method and a terminal for controlling a smart home device, including: the terminal detecting (102) a user trigger operation which is for acquiring a control permission with respect to the smart home device; determining (104) whether an associated wearable device exists within a preset distance range; and granting (106) a control permission with respect to the smart home device, when determining that an associated wearable device exists within a preset distance range of the terminal. Through the technical solution of the present disclosure, it can improve operation security of the smart home device, and the user operation can also be simplified.