Patent ID: 6774812
Filing Date: 2004-08-10
Classification: G08C

Abstract:
A two-wire remote control system comprising:a wiring case including two power lines; a control device comprising: a generator for generating pulse group data representing an assigned address of a target device to be controlled and control data addressed to the target device; and a power controller for converting DC power into power in equilibrium pulse waveform according to the generated pulse group data, and supplying the converted power to the two power lines; and at least one device to be controlled which is removably attached to the wiring case such that the control device and the at least one to-be-controlled device are electrically connected to each other via the two power lines, comprising: a charger for rectifying the converted power received from the two power lines, to be charged therein; a polarity identifying circuit for detecting continuation of a logical level of the pulse group data included in the received power for a certain period of time, and identifying a polarity of the pulse group data; a data processor for determining whether or not the assigned address of the self device is included in the received power according to the identified polarity, extracting control data from the pulse group data when the assigned address of the self device is included in the received power, and executing data processing according to the extracted control data; a display for displaying a result of the data processing by the data processor; a data generator for generating another pulse group data representing the assigned address of the self device and response data to the control device; and a power controller for converting the power stored by the charger into power in equilibrium pulse waveform according to the another pulse group data, and supplying the converted power to the two power lines.