| 摘要 |
A system is composed of a plurality of electric actuators that make it possible to control electrical appliances and equipment, such as lamps, heaters, fans, air-conditioning, etc. The actuators contain receivers for control signals and are normally not provided with transmitters that indicate the actuators status. The system also includes a local communications unit or server that can, first, communicate with the actuators via a transmitter, second, store information, via a supervision unit, about the status of units forming part of the system, third, has the capacity to communicate with a computer or via a telecommunications circuit, and may further include additional functions. One purpose is to bring about a system in which the same constitutive components can be controlled and read off by at least two of four different methods. This occurs preferably via a remote control with a range of 25-100 metres and either via a telephone interface that controls actuators by remote control or via a locally connected computer, e.g. a PC communicating with the system. In additional, direct control is possible on the product itself or via the circuit breaker on the connected appliance.
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