초록 ▼

The system comprises a plurality of objects such as lamps (11-15), venetian blinds (16, 17) and air-conditioning appliances (18) and a hand-held infrared remote control unit (40) for transmitting control signals. A separate receiver (21-28) is allocated to each one of the objects (11-18) and the tra

The system comprises a plurality of objects such as lamps (11-15), venetian blinds (16, 17) and air-conditioning appliances (18) and a hand-held infrared remote control unit (40) for transmitting control signals. A separate receiver (21-28) is allocated to each one of the objects (11-18) and the transmitter of the remote control unit (40) transmits the control signals in a relatively narrow transmission beam (42). An object is selected by directing the portable transmitter (40) towards this object. Consequently, the user does not need to give a further indication of the object and the system can be operated in a simple manner. Less frequent communication with the system is possible via a separate interface unit (70). Specific objects can only be operated by certain users by transmitting an identification code along with the control signal. The identification code can also be used for the purpose of localization and for access control.

대표청구항 ▼

A system for setting ambient parameters of an area, comprising: (a) a plurality of objects in said area, each object being for influencing a respective different ambient parameter, (b) a portable control unit including: i) a transmitter for directional transmission of a control signal in a beam havi

A system for setting ambient parameters of an area, comprising: (a) a plurality of objects in said area, each object being for influencing a respective different ambient parameter, (b) a portable control unit including: i) a transmitter for directional transmission of a control signal in a beam having limited cross section, which control signal does not contain object addressing and identification information for any of the objects, and ii) at least one control element for specifying an influence on the respective ambient parameters, (c) a plurality of receivers, each having a respective location associated with an associated one of said objects, for receiving and responding to the control signal from said transmitter, said respective location being such as to be unambiguously distinguishable from locations of other receivers in the system by intersection with the beam, each receiver selecting and setting the associated one of the objects in response to said control signal from the transmitter, so that the associated one of the at least one object is selectable without specific object addressing identification information in said control signal.