System for transmitting power and data

Patent metadata

Field	Value
Publication number	US-2016308582-A1
Application number	US-201415103088-A
Country	US
Kind code	A1
Filing date	Dec 5, 2014
Priority date	Dec 10, 2013
Publication date	Oct 20, 2016
Grant date	—

Abstract

A system for transmitting power and data, particularly including a half-wave control, includes a control unit connected to grid phases, the system having a phase-failure detection device which has bistable multivibrators, especially bistable multivibrators assigned to a respective grid phase. Each bistable multivibrator has an input for setting and an input for resetting, one of the inputs being connected to a digitizing device for digitizing the positive half-waves of a respective grid phase, the other of the inputs being connected to a digitizing device for digitizing the negative half-waves of a respective grid phase. The effective value of the output voltage of the bistable multivibrator is compared by a comparison device to a threshold value to detect a phase failure.

First claim

1 - 11 . (canceled)

12 . A system for transmitting power and data, comprising:
a control unit connectable to grip phases; a phase-failure detector including bistable multivibrators, each bistable multivibrator having an input for setting and an input for resetting, a first one of the inputs connected to a digitizing device adapted to digitize positive half-waves of a respective grid phase, a second one of the inputs connected to a digitizing device adapted to digitize negative half-waves of a respective grid phase, and a comparison device adapted to compare an effective value of an output voltage of the bistable multivibrator to a threshold value to detect a phase failure, by rectifying and smoothing the output signal, so that the comparison device monitors a smoothed value for exceeding or dropping below the threshold value.

13 . The system according to claim 12 , wherein the bistable multivibrators are assigned to respective grid phases.

14 . The system according to claim 12 , further comprising a half-wave control.

15 . The system according to claim 12 , wherein output signals of the comparison device is supplied to an OR-operation device to form an output signal of the phase-detection device.

16 . The system according to claim 12 , wherein a signal digitizing the positive half-waves of a respective grid phase and/or an output signal, galvanically isolated from the input, of an optocoupler of the digitizing device assigned to a respective grid phase, is supplied to the input for setting a respective bistable multivibrator, and a signal digitizing the negative half-waves of a respective grid phase and/or an output signal, galvanically isolated from the input, of a optocoupler of the digitizing device assigned to a respective grid phase, is supplied to the input for resetting a respective bistable multivibrator, the effective value of the output signal of the bistable multivibrator being monitored for exceeding or dropping below a threshold value, by rectifying and smoothing the output signal, so that the comparison device monitors the smoothed value for exceeding or dropping below the threshold value.

17 . The system according to claim 12 , wherein output signals of the comparison device are OR-ed, so that an output signal of the OR operation assumes a first state and/or a HIGH stage in response to a grid phase failure, and otherwise assumes a different state and/or a LOW state.

18 . A system for transmitting power and data, comprising:
a control unit connectable to grid phases, the control unit adapted to supply to a diode a voltage corresponding to a grid phase voltage and/or a voltage produced by a voltage divider that includes resistors, the diode adapted to produce an output signal utilized as a control voltage for a voltage-dependent switch and used to charge a capacitor and/or a condenser, a charging current being conducted across another diode.

19 . The system according to claim 18 , further comprising a half-wave control.

20 . The system according to claim 18 , further comprising:
a transmitter that connects a line and/or a command phase selectively to one of a plurality of and/or three grid phases, a receiver electrically connected to the grid phases and to the line via sliding contacts, the receiver having a control unit and a load and/or an electric motor adapted to drive a mobile part that is suppliable from the grid phases; wherein the control unit includes digitizing devices connected to respective grid phases and adapted to feed to a diode a voltage corresponding to a grid phase voltage and/or a voltage produced by a voltage divider that includes resistors, the diode adapted to produce an output signal that is utilized as control voltage for a voltage-dependent switch and that is used to charge a capacitor and/or a condenser, a charging current being conducted across another diode.

21 . The system according to claim 20 , wherein the output signal feeds a resistor, a first terminal of the resistor being connected to a reference potential, a second terminal of the resistor being connected to the diode.

22 . The system according to claim 20 , wherein the voltage-dependent switch is adapted to enable and/or open a current path when a voltage present at the control input drops below a voltage applied to the capacitor, the current path feeding the input of an optocoupler and/or an illuminant of an optocoupler.

23 . The system according to claim 18 , wherein the system is arranged as a rail system and/or an overhead monorail system, and the receiver is arranged on a mobile part and/or a rail vehicle.

24 . The system according to claim 22 , wherein the output signal, galvanically isolated from the input, of the optocoupler s supplied to a detection device adapted to detect half-waves and/or a half-wave decoder, the detection device including a comparison device adapted to compare the output signals of optocouplers of the digitizing device and/or the output signal assigned to the line being compared to the output signals assigned to the grid phases.

25 . The system according to claim 20 , wherein each digitizing device is connected to one of the grid phases or to the line and/or the command phase, and includes a digitizing device adapted to digitize positive half-waves and a digitizing device adapted to digitize negative half-waves.

26 . The system according to claim 22 , wherein one terminal each of a voltage divider, a resistor, a capacitor, the current path and/or the optocoupler of each digitizing device are electrically interconnected to form a reference potential.

Assignees

• Sew Eurodrive Gmbh & Co Kg

Inventors

• Bund Martin
• Schoepfer Claus

Classifications

• H02J13/1313

  using pulsed signals · CPC title

• H04B3/542 Primary

  the information being in digital form · CPC title

• H04B3/46

  Monitoring; Testing · CPC title

• H04B3/54

  Systems for transmission via power distribution lines · CPC title

• H04B2203/5408

  using protocols · CPC title