Abstract:
Connection for realization of the way of communication in the power line 230V by means of modulation and demodulation of mean value of half cycle of supply voltage enables reliable transmission of control signals and subsequently their decoding. Signals modulated in this way are resistant against perturbing influences that are commonly present in a supply line.
Abstract:
The present invention relates to a control circuitry module group, an electrical device, and a modem device. The control circuitry module group is configured for communication and/or power supply between a master control module and at least one slave modules in an electrical device. The control circuitry module group comprises: a bus; a bus control module coupled to the master control module and the bus, configured to receive a control signal from the master control module, add a target address in the control signal, and send to the bus the control signal with the target address; and at least one slave control modules each coupled to a corresponding slave module and the bus, respectively, and configured to receive the control signal with the target address via the bus, and controlling power supply to the slave module in response to the control signal.
Abstract:
A power line communication method is provided for realizing data communication between at least one first or sending power line communication partner device (P1) and at least one second or receiving power line communication partner device (P10). The inventive method comprises a step of checking transmission conditions of a plurality of possible communication channels (Ch1, ..., Chn). Thereby generating transmission condition data which are descriptive for the communication conditions of the respective possible communication channels (Ch1, ..., Chn). Additionally, a step of selecting communication conditions of the plurality of possible communication channels (Ch1, ..., Chn) as actual communication conditions based on said transmission condition data.
Abstract:
An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs.
Abstract:
There is provided a method to emulate a high frequency electrical signature using a first electrical device, the first electrical device coupled to an electrical power line and a first electrical appliance (155). The method comprises receiving electrical power from the electrical power line at a first electrical coupling mechanism (150), the electrical power received from the electrical power line corresponding to an amount of electrical power being used by the first electrical appliance (155). The method further comprises monitoring usage of the electrical power from the electrical power line by a monitoring module (120) of the first electrical device; generating an emulated high frequency electrical noise signal by an emitter module (130) of the first electrical device, the emulated high frequency electrical noise signal emulating electrical noise from a switch mode power supply; and emitting the emulated high frequency electrical noise signal on to the electrical power line.
Abstract:
There is provided a method to emulate a high frequency electrical signature using a first electrical device, the first electrical device coupled to an electrical power line and a first electrical appliance (155). The method comprises receiving electrical power from the electrical power line at a first electrical coupling mechanism (150), the electrical power received from the electrical power line corresponding to an amount of electrical power being used by the first electrical appliance (155). The method further comprises monitoring usage of the electrical power from the electrical power line by a monitoring module (120) of the first electrical device; generating an emulated high frequency electrical noise signal by an emitter module (130) of the first electrical device, the emulated high frequency electrical noise signal emulating electrical noise from a switch mode power supply; and emitting the emulated high frequency electrical noise signal on to the electrical power line.
Abstract:
Systems and methods for power line transmission are disclosed in which transmitters and receivers are connected to one or more phases of the power line. At least one symbol stream to be transmitted on the power line network is generated. The at least one symbol stream is scaled using a weight vector to generate a plurality of scaled symbol streams. The weight vector comprises a plurality of weights, each corresponding to a phase of the power line network. Each of the scaled symbol streams are transmitted on a corresponding phase of the power line network. A zero crossing detector identifies phase information for a receiver. A concentrator adapts signals to be sent to the receiver based upon the phase associated with the receiver.
Abstract:
An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs.