WO2014109584A1 - Dispositif et procédé pour commander une atténuation à l'aide d'un changement d'amplitude d'électricité commune dans une communication sur courants porteurs - Google Patents

Dispositif et procédé pour commander une atténuation à l'aide d'un changement d'amplitude d'électricité commune dans une communication sur courants porteurs Download PDF

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Publication number
WO2014109584A1
WO2014109584A1 PCT/KR2014/000281 KR2014000281W WO2014109584A1 WO 2014109584 A1 WO2014109584 A1 WO 2014109584A1 KR 2014000281 W KR2014000281 W KR 2014000281W WO 2014109584 A1 WO2014109584 A1 WO 2014109584A1
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WIPO (PCT)
Prior art keywords
voltage
change
power line
winding
data
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PCT/KR2014/000281
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English (en)
Korean (ko)
Inventor
이상철
이종대
김영식
김용철
김형준
Original Assignee
Lee Sang-Cheol
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Application filed by Lee Sang-Cheol filed Critical Lee Sang-Cheol
Priority to CN201480004235.6A priority Critical patent/CN105122661B/zh
Priority to JP2015551627A priority patent/JP5964519B2/ja
Publication of WO2014109584A1 publication Critical patent/WO2014109584A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/542—Methods of transmitting or receiving signals via power distribution lines using zero crossing information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the present invention relates to an apparatus and method for power line communication.
  • data to be transmitted from a transmitting end is transmitted by changing a voltage (amplitude) of commercial power supplied through a power line, and receiving the same.
  • the present invention relates to a dimming control apparatus and method using an amplitude change of a commercial power source in power line communication for receiving data by sensing a voltage of a power source supplied through a power line.
  • Power Line Communication is a method of separating and transmitting 100kHz ⁇ 30MHz communication signals using a high frequency filter using a power line as a communication line, and multiplexing power and communication signals by frequency multiplexing.
  • a high frequency signal of several tens of kHz to several MHz is used as a power supply and communication signal of 60 Hz.
  • the principle at the transmitting and receiving end of power line communication is briefly shown in FIGS. 1A and 1B.
  • Power line communication can be applied to various fields such as lighting and home network.
  • the master modem located in the street lamp distribution box transmits the dimming command through the power line
  • the slave modem receives the command and controls the dimming ballast accordingly to control the brightness of the lamp.
  • the street lamp bidirectional control system using power line communication installs the power line communication system in the existing individual street lamps and distribution boxes without separate line construction, and installs the central control system before the occurrence of the situation by patrol of the official in charge of management or report of the complaint.
  • the status of individual streetlights can be identified at a glance, the power is immediately cut off when an individual short-circuit, ballast, or lamp malfunctions, and information on the occurrence of the situation is sent to the mobile phone or the central control station of a management person.
  • power line communication does not require a separate communication line, it is easy to install, there is an advantage that does not require a separate communication fee.
  • power line communication has a limitation in communication distance due to limited transmission power, noise generated asynchronously like electric motors, high frequency noise generated at an integer frequency of 60Hz, and when a switch of an electronic device is connected or disconnected.
  • High load interference and noise occurs, such as independent impulse noise, and there is a disadvantage that the uncertainty of the signal attenuation due to the impedance change according to the environment.
  • power lines were originally manufactured for the purpose of transmitting electric energy, they are designed to be suitable for low frequency electric signals of 60 Hz. That is, there is no interest in the transmission characteristics of the high frequency signal, and thus, the covering of the power line and the arbitrarily installed branch circuit and various load devices that are designed to satisfy only the insulation requirements act as a factor influencing the power line channel characteristics.
  • the communication signal which is a relatively high frequency signal, suffers a large attenuation as the frequency is increased, and must bear the signal loss and distortion caused by the branch, and the background noise caused by the heat generated during the electrical energy transfer process.
  • a method for overcoming the disadvantages of power line communication is urgently needed.
  • the first object of the present invention is to eliminate the limitation of the transmission power without the need for a separate communication line for transmitting the control signal, easy installation, and no communication fee. Since there is no limit, the present invention provides a dimming control apparatus and method using an amplitude change of a commercial power source in power line communication in which power line communication is possible in all ranges in which 220 V / 60 Hz is transmitted.
  • the second object of the present invention is not only the effect of load interference and noise, the uncertainty of the signal attenuation disappears, and does not require a frequency modulation technique using a frequency modulation device, it is commercially available in power line communication that does not require a separate coupler device
  • the present invention provides a dimming control apparatus and method using a change in amplitude of a power supply.
  • the third object of the present invention is to install a lamp power supply device (position in individual street lamp column) including a voltage change device (position in street lamp distribution box) and a voltage sensing device in the existing street lamp distribution box and individual street lamp column, without a separate line construction , Dimming control device using the amplitude change of commercial power in power line communication, which can be applied to street light lamp dimming control method that can save energy through this.
  • a lamp power supply device position in individual street lamp column
  • a voltage change device position in street lamp distribution box
  • a voltage sensing device in the existing street lamp distribution box and individual street lamp column
  • the dimming step that can be controlled through data communication, when the number of bits of the transmission and reception data is n, not only the control of 2n steps but also the number of bits
  • the dimming step that can be controlled through data communication, when the number of bits of the transmission and reception data is n, not only the control of 2n steps but also the number of bits
  • the present invention for achieving the above object is a dimming control device using the amplitude change of the commercial power source in the power line communication, using a voltage change device of the transmitting end a predetermined period starting from the zero crossing point of the input power waveform Change the power supply voltage including the transmission data by changing the voltage as the unit time, and detect the changed power supply voltage supplied through the power line in the voltage sensing device at the receiving end, and set the zero voltage point as a starting point. Root Mean Square (RMS) voltage is measured, and the transmission data is received from the changed power supply voltage.
  • RMS Root Mean Square
  • the dimming control device using the amplitude change of the commercial power source is not constant, the voltage change device is the predetermined voltage during the unit time if the transmission data is High (1) If the transmission data is Low (0) without changing by the voltage, it is characterized by changing by the predetermined voltage during the unit time. That is, the change amount is measured during the unit time. Therefore, the slowly changing amount is ignored.
  • the voltage sensing device of the dimming control device using the amplitude change of the commercial power source in the power line communication initially measuring the effective value voltage of the power supply voltage received through the power line, regardless of the measured voltage Is promised as High (1), and then the RMS value is measured at each promised unit time, and if the voltage falls below the threshold voltage from the initial measured voltage, the first data is determined to be 0 and the reception of data is started. If the measured voltage is compared with the previous voltage and the change is less than the threshold voltage, the received data is determined to be the same as the previous data. If the change is the rising change above the threshold voltage, the received data is determined as High (1). If the change is a change in the threshold voltage or more, the received data is determined to be Low (0).
  • the voltage sensing device of the dimming control device using the amplitude change of the commercial power source in the power line communication by changing the duty (DUTY) of the PWM signal to the data received from the transmitting end to adjust the lamp brightness (Dimming) and Characterized in that it is used as a control signal for adjusting the motor speed.
  • the voltage change device of the dimming control device using the amplitude change of the commercial power source in the power line communication is provided in the street lamp distribution box, the voltage sensing device is provided in the lamp power supply device in the individual street lamp column, the voltage change device Is a two-stage tap single winding transformer in which a lower end of the first winding and an upper end of the second winding are connected by a dimming switch to supply power to a load, and one end of the first power supply is connected to the input power supplied to the upper end of the first winding.
  • a bypass switch connected at a second end to a power line connecting the lower end of the first winding to the load, a first switch connected at one end to a first tap of the second winding, and connected to a common line at the other end;
  • a second switch having one end connected to the first tap of the second winding and the other end connected to the first resistor connected to the common line, and one end connected to the second tap of the second winding and the other end Characterized in that one end is connected to a third switch connected to the common line, the second tap of the second winding and the other end including a fourth switch connected to a second resistor connected to the common line.
  • the present invention for achieving the above object is a dimming control method using the amplitude change of the commercial power source in power line communication, using a zero voltage (Zero Crossing) point of the input power waveform using the voltage change device of the transmitting end as a starting point Transmit the changed power supply voltage including the transmission data by changing the voltage of the predetermined period as the unit time by a predetermined voltage, and detect the changed power supply voltage supplied through the power line at the receiving end, and the effective value (RMS) from the zero voltage point as a starting point. Root Mean Square voltage is measured to receive the transmission data from the changed power supply voltage.
  • the voltage changing device in the dimming control method using the amplitude change of the commercial power source, if the voltage of the input power waveform is not constant, the voltage changing device does not change the predetermined voltage if the transmission data is High (1). If the transmission data is Low (0), it is characterized by changing by the predetermined voltage.
  • the voltage sensing device initially measures the effective value voltage of the power supply voltage received through the power line, regardless of the measured voltage
  • the waveform is promised as high (1), and then the rms voltage is measured at each promised unit time, and if the voltage falls below the threshold voltage from the initial measured voltage, the first data is determined to be 0 and the reception of data is started. Thereafter, when the measured voltage is compared with the previous voltage and the change is less than the threshold voltage, the received data is determined to be the same as the previous data, and when the change is the rising change above the threshold voltage, the received data is determined as High (1). If the change is a change in the threshold voltage or more, the received data is set to Low (0).
  • the voltage sensing device the brightness of the lamp (Dimming) by changing the duty (DUTY) of the PWM signal for the data received from the transmitter And it characterized in that used as a control signal for adjusting the motor speed.
  • the zero point (Zero Crossing) of the input power waveform in the voltage change device of the transmitting end as a starting point, in the high data untransmitted state
  • change the LOW state time by a predetermined voltage so as to maintain n times the unit time corresponding to the value of the data to be transmitted, and transmit the changed power supply voltage including the transmission data, and at the receiving end, the changed power supply voltage supplied through the power line.
  • a power supply voltage is sensed, and a root mean square (RMS) voltage is measured based on a zero voltage point to receive the transmission data from the changed power supply voltage.
  • RMS root mean square
  • the voltage change device is provided in the street lamp distribution box, the voltage sensing device is provided in the lamp power supply device in the individual street lamp column, the voltage The change device includes a two-stage tap single winding transformer in which a lower end of the first winding and an upper end of the second winding are connected by a dimming switch to supply power to a load, and one end is connected to the first tap of the second winding.
  • a first switch having the other end connected to the common line, a second switch connected at one end to the first tap of the second winding, and connected to the first resistor connected at the other end to the common line, and connected to the second tap of the second winding.
  • a third switch having one end connected to the other end and the fourth switch connected to the common line, and a fourth switch connected to the second tab of the second winding and connected at the other end to the second resistor connected to the common line. And turning on the second switch when the voltage change device switches from the first tap to the second tap to change the voltage while the dimming switch and the first switch are ON.
  • the voltage change device one end is connected to the input power supplied to the upper end of the first winding and the other end of the first winding And a bypass switch connected to a power line connecting a lower end and the load.
  • the present invention has the advantage that a separate communication line for transmitting a control signal is unnecessary, easy to install, and no communication fee is required.
  • the present invention does not have a limit of distance by eliminating the limit of the transmission power, so that if the 220V / 60Hz range is all possible power line communication, by measuring the RMS voltage of the power line, the noise is averaged and disappears during voltage sensing, the load Less influence of interference and noise, the impedance of the power line is designed for 60Hz to eliminate the uncertainty of the signal attenuation, and by using a voltage changer, there is no need for a frequency modulation technique using a frequency modulation device, a separate coupler (Coupler) The advantage is that no device is required.
  • the present invention is to install a voltage change device and a voltage sensing device in the existing individual street lamp pole and street lamp distribution box without a separate line construction in the street lamp lamp dimming control method to which the present invention is applied, and controls the brightness of the street lamp according to the environment and needs (Dimming), which saves energy.
  • the present invention can provide a street lamp lamp dimming control method that can be controlled in 2n steps when the number of bits of the transmission and reception data is n, the dimming step that can be controlled through data communication, unlike the dimming system through the voltage change There is an advantage that there is no limiting factor in increasing the number of bits, and this allows more step control.
  • the switching change quantity of the transmitting end device is only lowered and raised twice. Since it can be made to operate the system stably, there is an advantage that the complexity of the sensing at the receiving end disappears.
  • the present invention has the advantage that the receiving end control unit can be operated stably without the battery, since the power required for the operation of the receiving end can be changed even during the voltage change process.
  • FIGS. 1A and 1B are diagrams illustrating principles at a transmitting end and a receiving end of a general power line communication
  • 2a and 2b is a view showing the basic principle of the transmitting and receiving end according to the power line communication device and method of the present invention
  • 3a and 3b is a view showing the application principle of the transmitting and receiving end according to the power line communication apparatus and method of the present invention in the actual power line use environment
  • FIG. 4 is a configuration diagram applying a power line communication device and method according to the present invention to the street lamp lamp dimming control
  • FIG. 5 is a circuit diagram of a voltage change device used in the power line communication device and method according to the present invention.
  • 6A to 6C are circuit diagrams illustrating a state at the time of a voltage change of the voltage changer of FIG. 5;
  • FIG. 7A to 7G are circuit diagrams illustrating a step of changing a voltage of the voltage changing device of FIG. 5;
  • FIG. 8 is a view showing the configuration of a street lamp distribution board when the power line communication device and method according to the present invention are applied to a street lamp lamp dimming control scheme;
  • FIG. 9 is a block diagram of a voltage sensing device of a receiver used in a power line communication device and method according to the present invention.
  • 10A to 10C illustrate an example of a voltage converter of the voltage sensing device of FIG. 9;
  • 11A and 11B are views illustrating a full-wave rectifying circuit and a sampling method of the voltage sensing device of FIG. 9, respectively.
  • 12A and 12B are diagrams illustrating a method of extracting received data by calculating an effective value of a voltage of the voltage sensing device of FIG. 9;
  • FIG. 13 is a diagram illustrating an example of a PWM signal used as a control signal of a CPU of the voltage sensing device of FIG. 9;
  • FIG. 13 is a diagram illustrating an example of a PWM signal used as a control signal of a CPU of the voltage sensing device of FIG. 9;
  • 15A to 15C are diagrams showing pulse holding times according to types of bits
  • FIGS. 15A to 15C are views showing an example of a waveform of a command for requesting a change in step 1 from Table 1 according to the rules of FIGS. 15A to 15C;
  • 17A to 17C are circuit diagrams according to respective transfer states of the voltage change device
  • 18A-18C illustrate a method of delivering a dimming command with a holding time of an output voltage.
  • the required technology requires a frequency modulation technique for loading data on a frequency line via a power line, a coupling technique for combining a modulated communication signal with a power line, and receiving only a desired communication signal at a receiving end.
  • a frequency modulation technique for loading data on a frequency line via a power line
  • a coupling technique for combining a modulated communication signal with a power line
  • receiving only a desired communication signal at a receiving end There are prefilter techniques for removing signals, and channel coding techniques for converting to coded coding schemes to reduce error rates.
  • the power line communication apparatus and method according to the present invention is to measure the voltage (amplitude) of the commercial power (for example, 220V / 60Hz or 50Hz, 100V / 60Hz or 50Hz, etc.) supplied via the power line to the data to be transmitted from the transmitter.
  • the present invention proposes a method of changing data and transmitting the data, and receiving the data by sensing the voltage of the power supplied through the power line.
  • the power line communication device and method according to the present invention proposes a power line communication device and method that is supplied to the receiving end without interruption even when the voltage changes.
  • FIGS. 2A and 2B are diagrams showing the basic principle of a transmitting and receiving terminal according to the power line communication device and method according to the present invention.
  • a voltage (amplitude) using a voltage change device of 10 V is applied to a power waveform of 220 V / 60 Hz.
  • a cycle of power line transmission or reception waveforms represents one data.
  • a certain period promised between the transmitting and receiving sides may display one data.
  • the voltage sensing device at the receiving end receives the received data by measuring a root mena square (RMS) voltage from a zero crossing point.
  • RMS root mena square
  • 3A and 3B are diagrams illustrating an application principle of a transmitting / receiving terminal according to a power line communication device and method according to the present invention in an actual power line use environment, where power waveforms 220 V / 60 Hz are not always maintained in an actual power line environment. Depending on the environment, the voltage will continue to change in real time (a large change of 2 to 3 V over one cycle rather than a sharp change).
  • the waveform initially received through the power line is promised to be high (1), and thereafter, the effective value voltage is measured at each promised unit time, and the threshold voltage (Vth, for example, 6V) is measured. If the voltage drops abnormally, the first data is set to 0 and data reception is started. Next, when the measured voltage of the received signal rises 8V, and shows a rising change larger than Vth, the second data is determined as 1. Similarly, after measuring the voltage of the received signal and comparing it with the previous voltage, if the result of Vth is less than Vth, the previous data is determined as the data of the received signal. If it shows a change, it is set to 0 regardless of previous data.
  • Vth the threshold voltage
  • FIG. 4 is a configuration diagram in which the power line communication device and method according to the present invention are applied to street lamp dimming control.
  • the central control station and the portable wireless terminal required for control are not shown.
  • the voltage sensing device located in the street lamp receives the transmitted dimming command and controls the dimming ballast accordingly.
  • the dimming ballast and the voltage sensing device may be integrally formed.
  • the lamp lamp dimming control method using the power line communication device and method according to the present invention shown in FIG. 4 is a voltage change device and a voltage sensing device in existing street lamps and street lamp distribution boxes without a separate line construction, unlike a conventional dimming method. It is possible to install, to control (dimming) the brightness of the street lamp according to the environment and needs, thereby saving energy. Accordingly, in the lamp lamp dimming control method using the power line communication apparatus and method according to the present invention, the dimming step is limited to N steps in the conventional dimming system (for example, N step voltage change method through the multi-stage tap). On the other hand, in the present invention, it is possible to remove the limitation of the dimming step that can be controlled through data communication. That is, when the number of bits of the transmission / reception data is n, control of 2n steps is possible.
  • the power line communication apparatus and method according to the present invention has the advantage that a separate communication line for transmitting a control signal is unnecessary, easy to install, and no communication fee is required.
  • the power line communication apparatus and method according to the present invention overcomes the disadvantages of the existing power line communication, and does not have a limit of distance by eliminating the limitation of the transmission power, so that all power line communication is possible as long as 220V / 60Hz is transmitted. .
  • the power line communication apparatus and method according to the present invention measures the RMS voltage of the power line and noise is averaged and disappears during voltage sensing, the influence of the load interference and noise is small, and the impedance of the power line to 60 Hz has been previously used. Very high compared to the power line communication frequency (more than hundreds of times), the uncertainty of signal attenuation disappears, and the use of a voltage changer eliminates the need for frequency modulation using a frequency modulation device and eliminates the need for a separate coupler. .
  • FIG. 5 is a circuit diagram of a voltage change device used in a power line communication device and method according to the present invention. As shown in FIG. 5, a high voltage according to high / low data to be transmitted through a two-stage tap (TAP) configuration of a single winding transformer is illustrated. Transmit voltage and low voltage.
  • TAP two-stage tap
  • FIG. 6A is a circuit diagram of a voltage changer when the output is 200V, and 200V is output as an output voltage by adjusting the winding ratio of the primary winding and the secondary winding to 220: 200 with respect to the input voltage 220V / 60Hz.
  • the secondary voltage is obtained from the formula (primary voltage x secondary winding ratio / 1 primary winding ratio)
  • an output voltage of 200 V is obtained by substituting the input voltage and the primary and secondary winding ratios.
  • Fig. 6B is a circuit diagram of the voltage change device when the output is 210V, and outputs 210V as the output voltage by adjusting the winding ratio of the primary winding and the secondary winding to 440: 420 for the input voltage 220V / 60Hz.
  • the secondary voltage is obtained from the formula (primary voltage x secondary winding ratio / 1 primary winding ratio)
  • substituting the input voltage and the primary and secondary winding ratios yields an output voltage of 210V.
  • FIG. 6C illustrates a switching circuit diagram for bypassing an input voltage to an output and bypassing a voltage applied to a transformer in an emergency situation, wherein sw5 is off and sw6 is on. By operating, the input voltage of 220V / 60Hz is output as an output voltage as it is.
  • the voltage change process of FIGS. 7A to 7G described below is used to damp the arc characteristic of the current flowing through the switch to cancel the arc characteristic generated when the flow of current is cut off due to the off operation of the switch.
  • a damping resistor and keeping at least one switch on through the shunt winding the entire switch of the shunt winding can be prevented from being turned off. It solves the problem that the power supply is not cut off, and therefore, the high voltage lamp does not turn on again when there is a momentary voltage cut-off.
  • the receiving unit can be stably supplied with power and operate without a battery.
  • FIG. 7A illustrates a first stage of change, and operates sw1 on.
  • FIG. 7B illustrates a second stage of change, and operates sw2 on while sw1 is on.
  • FIG. 7C is a step 3 of changing, operating sw4 on while sw1 and 2 are on
  • FIG. 7D is a step 4 of changing, operating sw1 off. Only sw2 and 4 are turned on.
  • FIG. 7E is a fifth step of changing, operating sw3 on while sw2 and 4 are on
  • FIG. 7F is a sixth changing step, and sw3 and 4 are on. Keep sw2 off.
  • Figure 7g is a seven step change, to operate sw4 off (off) so that only sw3 is on (on).
  • FIG. 8 is a diagram illustrating a configuration of a street lamp distribution board when the power line communication device and method according to the present invention are applied to a street lamp ramp dimming control method.
  • the controller controls a switch of the voltage conversion device according to data to be transmitted to change an output voltage, performs communication with a server through a wireless modem (communication unit), and provides various power information and states to the server.
  • the switch of the voltage conversion device is controlled in response to the report and the dimming change request data transmitted from the server.
  • the street lamp distribution panel of the street lamp lamp dimming control method using the power line communication device and method according to the present invention includes a function for measuring the input and output voltage, current, power factor, power, etc. And the like (KEYPAD) for setting change request.
  • FIG. 9 is a block diagram of a voltage sensing device of a receiver used in a power line communication device and method according to the present invention, wherein the voltage conversion and A / D converter is a CPU from a received power source (210V or 200V) supplied through a power line at a transmitter.
  • the sample is converted to a voltage lower than 5V that can be measured (using PT or CT), sampled, and transmitted to the CPU.
  • the CPU calculates the voltage transferred from the voltage conversion and the A / D converter as RMS (effective value), converts the received data using the data determination method of the above-described receiver, interprets the command, and interprets the corresponding command.
  • Output a control signal.
  • SMPS converts the received AC voltage into DC voltage for CPU, voltage conversion and A / D converter operation.
  • FIGS. 10A to 10C illustrate an example of a voltage converter used to convert a received power source to a low voltage of 5V or less in the voltage sensing device of FIG. 9, and FIGS. 10A, 10B, and 10C are respectively a power converter PT; Power transformer, resistor divider, and current transformer (CT).
  • PT power converter
  • CT current transformer
  • the power converter converts the voltage into a voltage range that can be read by the voltage converter and the A / D converter in a manner in which the primary voltage is converted into the secondary voltage according to the ratio of the primary turns ratio and the secondary turns ratio. Lower it. Power converters have the advantage of electrically isolating the primary and secondary circuits.
  • the circuit has a simple advantage in changing the input voltage of 220V to a low voltage of 2.2V according to the resistance ratio.
  • 11A and 11B illustrate a full-wave rectification circuit and a sampling method for converting AC into a pulse current so that the voltage conversion and the A / D converter can perform sampling in the voltage sensing device of FIG. 9, respectively.
  • the circuit may use a half-wave rectifier circuit, and the rectifier circuit may be omitted when using a differential A / D converter. Sampling transfers the digital values sampled in real time to the CPU by sampling n times in one cycle.
  • FIGS. 12A and 12B are diagrams illustrating a method in which a CPU calculates an RMS value of a voltage and extracts received data in the voltage sensing device of FIG. 9, and the CPU is configured in a voltage conversion and A / D converter as shown in FIG. 12A.
  • the effective value is calculated using the received data, and the received data is detected as shown in FIG. 12B.
  • the effective value of one cycle is calculated.
  • the effective value of several cycles may be calculated and averaged.
  • the effective value can be obtained by the following equation.
  • FIG. 13 is a diagram illustrating an example of a PWM signal used by a CPU as a control signal for adjusting a lamp brightness or a motor speed in the voltage sensing device of FIG. 9.
  • the transmitter is configured to change the duty of the PWM signal.
  • the received data may be received by the receiver and changed into a control signal suitable for the same.
  • Table 1 below is an example of each step command data for transmitting a dimming command using the control data transmitted and received, 4 bits are required to transmit the 16 dimming commands, but to reinforce the communication error
  • the total of 8 bits is shown by adding 4 bits of complement of each bit in 4 bits of dimming instruction.
  • FIGS. 15A to 15C are diagrams showing pulse holding times according to types of bits.
  • the start bits are changed to high after holding at least two times the basic time.
  • the High bit maintains the basic time in both High and Low states.
  • the Low bit maintains twice the basic time in the Low state after maintaining the basic time in the High state.
  • the default time T is set in seconds.
  • FIG. 16 shows an example of a waveform of a command for requesting a change in step 1 from Table 1 according to the rules of FIGS. 15A to 15C.
  • the waveform of the command requesting the change in step 6 should transmit 0x69, L, H, H, L, H, L, L, and H are transmitted after the start signal. If the basic time (T) is set to 1 second, it takes 22 seconds with a total of 22T.
  • FIG. 17A to 17C show circuits of the voltage change device according to each transfer state, respectively.
  • FIG. 17A illustrates the switch open / closed state in an idle state
  • FIG. 17B illustrates the switch open / close state in a high bit transfer state
  • FIG. 17C illustrates the switch open / close state in a low bit transfer state.
  • FIG. 18A to 18C illustrate a method of transmitting a dimming command with a holding time of an output voltage.
  • FIG. 18A illustrates a method of transmitting a dimming command to a holding time of a changed output voltage, and operates to change to High after maintaining Low for n times the basic time, and the basic time T is set in seconds. If n is 1, it is a bypass command. If n is 2, the dimming command is transmitted in the order of 2 steps.
  • FIG. 18B transmits a dimming command at the holding time of the changed output voltage. Unlike FIG. 18A, the dimming command is changed to low after holding for n times High of the basic time. Similarly, if n is 1, the bypass command is transmitted. If n is 2, the dimming command is transmitted in the order of 2 steps.
  • FIG. 18C illustrates a method of transferring a dimming command in a cycle of changing an output voltage, and changes Low and High during a set number of times by an n times period of a basic time T.
  • the bypass command changes Low and High during the set number of times at a period of 1 times the base time T
  • the one-step command changes Low and High during the set number of times at a period of 2 times the basic time T.
  • the dimming command can be delivered in a manner.
  • the power line communication apparatus and method according to the present invention does not require a separate communication line for transmitting a control signal, is easy to install, and does not require a communication fee.
  • the power line communication apparatus and method according to the present invention does not have a limit of distance by eliminating the limit of the transmission power, so that power line communication is possible in all ranges in which 220 V / 60 Hz is transmitted, and voltage sensing is performed by measuring the RMS voltage of the power line. Noise is averaged and disappears to minimize the effects of load interference and noise, and the power line's impedance at 60 Hz is very high (over hundreds of times) compared to the conventional power line communication frequency, which eliminates uncertainty in signal attenuation, as well as changing voltage.
  • the device there is no need for a frequency modulation technique using a frequency modulation device and no separate coupler device.
  • the street lamp lamp dimming control method using the power line communication device and method according to the present invention the voltage change device and the voltage sensing device is installed in the existing street lamp pole and street lamp distribution box without a separate line construction, the street lamp according to the environment and needs Can control (dimming) the brightness of the device, thereby saving energy.
  • the lamp lamp dimming control method using the power line communication apparatus and method according to the present invention unlike the dimming system through a voltage change, when the number of bits of the transmission and reception data is n, the dimming step that can be controlled through data communication is 2n Step control is possible.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La présente invention porte sur un appareil et sur un procédé pour une communication sur courants porteurs qui permettent à un terminal d'émission d'émettre des données devant être transférées par un changement de tension (amplitude) de l'électricité commune fournie par une ligne électrique afin de surmonter un mauvais environnement de canal dans une communication sur courants porteurs, qui permettent à un terminal de réception de recevoir les données par détection de la tension de l'électricité fournie par la ligne électrique, qui permettent toute la communication sur courants porteurs dans une plage d'émission de 220 V/60 Hz en éliminant la limite de puissance d'émission afin de supprimer la limite de distance, de réduire l'influence de brouillage et de bruit de charge par mesure de la tension RMS de la ligne électrique afin d'égaliser et de supprimer le bruit lors de la détection de la tension, de supprimer une incertitude d'atténuation du signal en augmentant (plusieurs centaines de fois ou plus) l'impédance de la ligne électrique de 60 Hz par comparaison avec une fréquence de communication de ligne électrique utilisée de manière classique, et de supprimer la nécessité d'une technique de modulation de fréquences utilisant un dispositif de modulation de fréquences et la nécessité d'un dispositif coupleur supplémentaire en utilisant un dispositif de changement de tension.
PCT/KR2014/000281 2013-01-09 2014-01-09 Dispositif et procédé pour commander une atténuation à l'aide d'un changement d'amplitude d'électricité commune dans une communication sur courants porteurs WO2014109584A1 (fr)

Priority Applications (2)

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CN201480004235.6A CN105122661B (zh) 2013-01-09 2014-01-09 在电力线通信中利用常用电源的振幅变化的调光控制装置及方法
JP2015551627A JP5964519B2 (ja) 2013-01-09 2014-01-09 電力線通信における常用電源の振幅の変化を用いたディミング制御装置及び方法

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KR10-2013-0002414 2013-01-09
KR1020130002414A KR101277650B1 (ko) 2013-01-09 2013-01-09 전력선 통신에서 상용전원의 진폭변화를 이용한 디밍제어 장치 및 방법

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JP2019024315A (ja) * 2018-10-31 2019-02-14 Ntn株式会社 モータ駆動装置
US11259381B2 (en) * 2018-08-17 2022-02-22 Signify Holding B.V. LED driver and LED lighting system for use with a high frequency electronic ballast

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JP6546200B2 (ja) * 2014-02-17 2019-07-17 ソフトカーネル カンパニー リミテッドＳｏｆｔｋｅｒｎｅｌ Ｃｏ．，Ｌｔｄ 電力線を用いたｌｅｄ照明システム
KR101708656B1 (ko) * 2014-02-17 2017-03-08 주식회사 소프트커널 전력선을 이용한 통신장치와 이를 이용한 엘이디 조명시스템
KR101515401B1 (ko) * 2014-03-05 2015-04-29 주식회사 피엠디네트웍스 전력선 통신의 존 디밍 제어장치
KR101572121B1 (ko) 2014-10-10 2015-11-26 이재석 저전압 직류전원을 이용한 발광 다이오드 조명제어 시스템 및 발광 다이오드 조명제어 방법
CN104582141B (zh) * 2014-12-12 2017-11-03 骆武宁 照明系统的集中调光控制方法
KR101898554B1 (ko) * 2017-06-09 2018-09-13 (주)블루칩스 교류전원의 주파수 변조를 이용한 양방향 통신장치
CN112770447A (zh) * 2019-10-21 2021-05-07 软核株式会社 基于电力线的通信装置以及采用该通信装置的led照明系统
CN116647256A (zh) * 2022-02-16 2023-08-25 华为数字能源技术有限公司 基于电力线的多设备组网方法及系统

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JP2016503994A (ja) 2016-02-08

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