Classifications

• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
  • H05B47/10—Controlling the light source
  • H05B47/175—Controlling the light source by remote control
  • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

• the luminosity can be optimally adapted to the current needs.
• the modern LED lights have a built-in electronic ballast as standard. All leading manufacturers of such ballasts also offer dimmable versions.
• the invention describes a novel transmission system for this task. It is actually a new kind of bit transfer.
• Wired and radio systems are used as transmission systems for this task. As radio systems have completely different properties, they will not be discussed in more detail here.
• the first group includes the DALI bus. It is specified in the standards IEC 62386 and IEC 60929.
• the basis of the invention for the optimal solution of the tasks is a new bit transmission system.
• the mains voltage L, N
• the system can be adapted for different mains voltage and mains frequencies. In Europe, above all, the mains voltage 230V 50Hz is used.
• the system consists of a transmitter (TR) in the control panel and receivers (REC) in each light.
• TR transmitter
• REC receivers
• the data is transmitted from the transmitter to the receivers via a single wire (control phase U2).
• the neutral (N) of the supply of the luminaire serves as return.
• the transmitter has an electronic switch (S) installed. He can switch the mains phase (L, UI) to the control phase (U2) or disconnect it.
• S electronic switch
• the switch is controlled by electronics (TR LOGIC) in the transmitter. This synchronizes the switching operation of the switch S so that it can only be switched off in the current zero crossing and in the voltage zero crossing.
• switch (S) There are two operating modes of the switch (S) standard and inverted.
• standard mode the switch (S) is in the idle state too. In order to send data, it is opened for one or more half-waves and so these half-waves are cut out in the control phase.
• the switch is closed here in idle state.
• the network phase (L, U1) is applied to the control phase (U2).
• Cutting one half-wave (START) starts the transmission of one byte. With the state of the switch for each following half cycle, the individual bits are transmitted.
• the switch is open here in the idle state. There is no voltage at the control phase (U2). When a half-cycle START is switched on, the transmission of one byte is started. With the state of the switch (S) for each following half wave, the individual bits are transmitted.
• the system can work with different encodings.
• a bit can also be defined as a series of multiple halfwaves or sequences.
• a specific encoding is not yet defined.
• the transmitter is built according to the current state of the art.
• the digital logic controls a microcontroller. High demands are placed on the quality and precision of the zero-crossing circuit. If the half-waves are not switched exactly, disturbances occur on the network.
• the receiver has a detector with which it can detect the voltage on the control phase and evaluate accordingly. These tasks can be solved with the current state of the art with standard circuit parts. The evaluation of the data and further processing is most easily done with a microcontroller (REC LOGIC).
• the receiver processes the signals and can then directly drive a dimmable ballast.
• the circuit part for the reception and processing of the signal can also be implemented directly in a ballast.
• the data transfer is very slow compared to others and only in one direction (unidirectional).
• the brightness of the lighting can be monitored with special cameras or sensors. Since the luminaires go to full power in the event of communication failure, only with such an independent system do we have the effective lighting condition of the object.

Landscapes

• Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

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Family

ID=60244957

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Citations (3)

• 2017
  • 2017-11-03 EP EP17199809.9A patent/EP3481157A1/fr not_active Withdrawn

Patent Citations (3)

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