Patent ID: 7804191

Claim:
A system for collective control of lights comprising a main control device ( 1 ) and a plurality of lights ( 2 ), characterized in that: the system further comprises a plurality of auxiliary control devices ( 3 ) a number of which is equal to that of the lights ( 2 ), each said auxiliary control device comprises a transducer ( 31 ), an amplifier ( 32 ), a decoder ( 33 ), and a switch device ( 34 ) that are electrically connected in sequence, a main portion of a circuit of the switch device ( 34 ) is electrically connected to an associated one of the lights ( 2 ) or electrically connected via a switch device having a larger power to the associated one of the lights ( 2 ); the main control device ( 1 ) comprises a central processor ( 11 ), an input/decoder ( 12 ), an encoded control signal generating circuit ( 13 ), and a main amplifier ( 16 ), the input/decoder ( 12 ) and the encoded control signal generating circuit ( 13 ) are electrically connected to the central processor ( 11 ), the encoded control signal generating circuit ( 13 ) is electrically connected to the input/encoder ( 12 ) and the main amplifier ( 16 ); a positive output and a negative output of the main amplifier ( 16 ) are connected with each other by a wire to form an output circuit ( 4 ), the transducer ( 31 ) is coupled with the wire of the output circuit ( 4 ), a code number for the light ( 2 ) to be controlled is input via the input/encoder ( 12 ) to the central processor ( 11 ), the central processor ( 11 ) controls the encoded control signal generating circuit ( 13 ) to generate and output an encoded control signal, when the encoded control signal passes through the wire of the output circuit ( 4 ), the transducer ( 31 ) of the auxiliary control device ( 3 ) in association with the light ( 2 ) to be controlled generates a corresponding encoded control signal that is amplified by the amplifier ( 32 ) and output to the switch device ( 34 ) after decoding by the decoder ( 33 ) to control on/off of the switch device ( 34 ), thereby collectively controlling on/off and/or current magnitude of each of the lights ( 2 ).