摘要:
Systems, methods, and processor readable media for distributing digital data and electrical power to a plurality of devices over high-impedance cables are disclosed. Certain embodiments include a gateway device connected to a power source, a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable, a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path, and wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology.
摘要:
An alternating current (AC) zero-crossing indicator apparatus including a current adjusting circuit for adjusting a DC signal current for a duration of time the same as the duration of a received zero-crossing detection signal. The zero-crossing indicator apparatus additionally includes a voltage retainer for maintaining a constant DC voltage applied to a connected load during the adjusting of the DC signal current. Also included is a zero-crossing sensor for generating a zero-crossing indication signal responsive to sensing of the adjusting of the DC signal current.
摘要:
Included are embodiments for customized load control. One embodiment of a method includes receiving altered alternating current power, where the altered alternating current power is altered via inclusion of a delay to communicate a message, converting the message in the altered alternating current power into a computer-readable format, and determining an action to take related to the message. Some embodiments include utilizing the altered alternating current power for performing the action, based on the message.
摘要:
Phase detection between service nodes in a as “PRIME” (“PoweRline Intelligent Metering Evolution”) communications network, in which the service nodes are connected to one phase of a three-phase power distribution network. A service node joining a sub-network receives packet data units from other service nodes in the sub-network, including those that can potentially serve as a switch node to which the joining service node can register. The joining service node measures an elapsed time between a zero crossing of the AC power waveform at its phase and the start of a frame in the received packet data units. This elapsed time is compared with a similar zero crossing gap communicated by other service nodes in the packet data units, to identify the relative phases to which the two service nodes are connected.
摘要:
A programming device (100) for programming a controller (10) in an electronic driver (200) comprises a controllable voltage supply (30) for generating an AC supply voltage suitable for supplying the electronic driver (200) and a programming controller (20) for controlling the voltage supply (30). The programming device (100) is designed to modulate the supply frequency in order to both feed the electronic driver (200) and send programming data to the electronic driver (200).
摘要:
An aircraft systems interface unit includes a multiplexer and a broadband over power line (BPL) modem. The multiplexer includes a plurality of inputs and an output for outputting data received through the plurality of inputs. Each input is configured for connection to at least one aircraft data bus. The BPL modem is coupled to the output of the multiplexer and configured to transmit data received from the multiplexer over a power line.
摘要:
The present invention relates to a power line communication system for a large capacity load which greatly improves the recognition ratio and accuracy of a communication signal even for a large capacity load in that it: includes a switch unit as a transmission means wherein a first switch made of semiconductor elements and a second switch made of relay elements are connected in parallel; and generates and transmits a communication signal by selectively using the switches.
摘要:
The present invention relates to a power line communication system for a large capacity load which greatly improves the recognition ratio and accuracy of a communication signal even for a large capacity load in that it: includes a switch unit as a transmission means wherein a first switch made of semiconductor elements and a second switch made of relay elements are connected in parallel; and generates and transmits a communication signal by selectively using the switches.
摘要:
An aircraft systems interface unit includes a multiplexer and a broadband over power line (BPL) modem. The multiplexer includes a plurality of inputs and an output for outputting data received through the plurality of inputs. Each input is configured for connection to at least one aircraft data bus. The BPL modem is coupled to the output of the multiplexer and configured to transmit data received from the multiplexer over a power line.
摘要:
A powerline control interface includes a powerline connection, a level shifter connected to the powerline connection, the level shifter having a zero crossing detector signal output, a capacitor connected to the powerline connection, an inductor connected to the powerline connection, and a receive signal inductively coupled to the inductor.