KR101313002B1 - Data transfer method and device using control communication phase angle of volts alternating current - Google Patents

Abstract

PURPOSE: A data communications method by controlling a phase angle of an alternating current power and an apparatus for the same are provided to combine a leading edge controlled waveform, a trailing-edge controlled waveform and an uncontrolled waveform and to display a start point of data excluding a binary number. CONSTITUTION: A second control unit (320) reads a second zero voltage point signal as a bit value previously matched with a third switching signal in case the second zero voltage point signal maintains an on state from an off state during a half cycle of detection of the second zero voltage point. The second control unit reads the second zero voltage point signal as the bit value previously matched with a second switching signal in case the second zero voltage signal continuously maintains the off state. The second control unit reads the second zero voltage point signal as the bit value previously matched with a first switching signal in case the zero voltage point signal maintains the off state from the on state. The second control unit outputs a reception data packet which sequentially collects each of read bit values. [Reference numerals] (10) Data packet; (20) AC power supply; (200) Transmitter; (210) Communication unit; (230) First zero voltage detecting unit; (240) Switching unit; (250) First control unit; (30) External communication unit; (310) Storage unit; (320) Second control unit; (330) Second zero voltage detecting unit; (350) Receiver

Description

Data transfer method and device using control communication phase angle of volts alternating current}

The present invention relates to a data communication method and apparatus using phase angle control of an AC power supply. More particularly, the present invention relates to a method of generating a permutation of a waveform in which a phase angle of an AC power supply is adjusted and an unregulated waveform. Relates to a method of transmission.

As the background technology of the present invention is disclosed in Korean Patent Laid-Open Publication No. 10-2011-0107879, in order to control the device remotely using communication using a wired or wireless communication network or an analog communication signal on an AC line It is common to use power line communication to transmit data in an overlap.

In case of using a wire, the cost for laying a separate communication line increases, and in the case of using a wire, the installation is simple, but a relatively expensive communication device is required compared to the wire, and there is a possibility of data loss due to crosstalk.

In addition, in the case of power line communication, communication is possible using a power supply line without a separate communication network, but there is a problem in that it is generally difficult to use because it is vulnerable to disturbance caused by other electric devices.

Conventional power line communication includes a coupling circuit, a frequency conversion circuit, SS spreading, a PN code, a control circuit, and a power supply circuit.

In the case of power line communication which uses spread spectrum method widely used in wireless communication, there is a problem that the configuration of power network becomes more limited because communication is impossible when power equipment generating noise of carrier frequency band exists on the line. .

In order to save power by adjusting the output of heaters and lighting equipment using AC power according to the usage environment, the phase angle of the power supplied by SCR (Silicon controlled rectifier) and transistors is generally controlled. It uses a method of controlling the RMS power supplied by controlling the voltage using a transformer. In the case of a power saver that regulates the amount of effective power supplied by controlling voltage or phase angle, the load may be abnormally operated depending on the characteristics of the load device because the voltage of the supply power is low or there is a section in which no power is supplied. There is a problem.

An object of the present invention devised to solve the above problems is to combine a leading-edge control waveform, a trailing-edge control waveform and an uncontrolled waveform in controlling the phase angle of an AC power source for transmitting data, In addition, the present invention provides a data communication method and apparatus using phase angle control of an AC power supply that can efficiently communicate by ensuring the stability of data communication by indicating the starting point of data.

In addition, another object of the present invention is to control the device by a method of controlling the phase angle of the AC power source so that the data is transmitted using only the power line without any other communication line, alternating current to create the effect of reducing the cost for configuring the communication network It is to provide a data communication method and apparatus using phase angle control of a power supply.

In addition, another object of the present invention is the phase angle of the AC power supply that can be used to suit the environment by operating alone or by receiving data remotely through the wired or wireless communication network by the data input from the external control unit or embedded data It is to provide a data communication method and apparatus using control.

According to a feature of the present invention for achieving the object as described above, the data communication method using the phase angle control of the AC power source of the present invention (a) the transmission target data packet consisting of a binary 1 bit binary and 0 bits binary from the outside and Receiving an AC power source; (b) receiving, by the first zero voltage point detector, an AC power source in the transmitter and detecting a first zero voltage point of the input AC power; (c) A first switching signal that is turned on from an off state, a second switching signal that remains on, and a third switching signal that is turned off from an on state are respectively a start bit and a binary number 1 bit to a first control unit in the transmitter. If the first zero voltage point is detected from the first zero voltage detector, and the first zero voltage point is detected at the start of communication, the switching signal matched to the start bit is applied to the switching unit. And sequentially applying a corresponding switching signal matched to a bit value constituting the data packet to be transmitted each time the first zero voltage point is detected; (d) when the switching unit in the transmitter receives the AC power and receives the first to third switching signals from the first controller, the AC to third switching signals are on. Passing through and outputting the alternating alternating current power generated by shutting off the alternating current power in the off state; (e) receiving, by the second zero voltage detection unit, a modified AC power output from the switching unit, sequentially detecting the second zero voltage point and transmitting the same to the second controller; And (f) a second control unit sequentially receives the second zero voltage point, and maintains the second zero voltage point signal in an off state for a half cycle based on the time point whenever the second zero voltage point is detected. In the case of reading the bit value matched in advance to the third switching signal, and in the case of maintaining the off state continuously in the case of reading the bit value matched in advance to the second switching signal, and maintains the off state in the on state Reading the bit values matched to the first switching signal in advance, and outputting a received data packet in which each read bit value is sequentially collected; .

In the data communication method using phase angle control of an AC power source, a half period is previously stored in the second control unit.

Also, in the data communication method using phase angle control of the AC power supply, step (c) includes a switching signal in which a first switching signal or a third switching signal is matched to a start bit, and a start signal is matched to a start bit in binary 1 bit and binary 0 bit. Remaining two switching signals except for is characterized in that each matching randomly.

In addition, the data communication apparatus using the phase angle control of the AC power source includes a first zero voltage detection unit for receiving an AC power source and detecting a first zero voltage point of the input AC power source; Receiving a transmission target data packet consisting of a binary 1 bit and a binary 0 bit from the outside, a first switching signal to be turned on in an off state, a second switching signal to be kept in an on state, and a third switching to be turned off from an on state The signal is randomly pre-matched and stored in the start bit, the binary 1 bit, and the binary 0 bit, respectively, and the first zero voltage detector detects the first zero voltage point. A first control unit which applies the matched switching signal to the switching unit, and sequentially applies the corresponding switching signal matched to the bit value constituting the data packet to be transmitted each time the first zero voltage point is detected; And receiving the AC power and passing the AC power when the first to third switching signals are turned on by receiving the first to third switching signals from the first controller. In one case, a transmitter comprising a switching unit for outputting the alternating AC power generated by blocking the AC power; A second zero voltage detector configured to receive a modified AC power output from the switching unit and sequentially detect a second zero voltage point; And receiving the second zero voltage point sequentially, and when the second zero voltage point signal is maintained in the off state from the off state for a half period based on the time point when the second zero voltage point is detected, the third switching. Read with a bit value pre-matched to the signal, and read with a bit value pre-matched to the second switching signal in case of maintaining the off state continuously, and read in advance with the first switching signal in case of keeping the off state in the on state A second controller configured to read a matched bit value and output a received data packet in which each read bit value is sequentially collected; .

The half cycle of the data communication apparatus using the phase angle control of the AC power source may be stored in the second control unit in advance.

In addition, the first control unit of the data communication apparatus using the phase angle control of the AC power supply has a switching signal matched to the start bit with a first switching signal or a third switching signal, and with a binary 1 bit and a binary 0 bit. Except for the remaining two switching signals are characterized in that each matching randomly.

In addition, the switching unit of the data communication apparatus using the phase angle control of the AC power source is an N-channel transistor, the drain terminal is electrically connected to the AC power source, the source terminal is electrically connected to the first ground terminal, the gate terminal is a first node A first FET Q1 electrically connected to the first FET Q1; A second FET Q2 as an N-channel transistor, a source terminal of which is electrically connected to the first ground terminal, a gate terminal of which is electrically connected to the first node, and a modified AC power source is output to a drain terminal; The first stage is electrically connected to a first resistor connected to the first DC power supply (Vcc), the second stage is electrically connected to a switching signal output terminal of the first controller, and the third stage is a second DC power supply (Vdd). Photocoupler electrically connected to the second resistor connected to the second resistor, and the fourth end is electrically connected to the second ground terminal, so that current flows from the third stage to the fourth stage when current flows from the first stage to the second stage. (OP1); A zener diode electrically connected between the first node and a second ground terminal; And a capacitor electrically connected between the first node and the second ground terminal.

In addition, the first to third switching signals of the data communication apparatus using the phase angle control of the AC power supply have an on-voltage level equal to that of the first DC power supply, and an off-state voltage level is equal to the first node. The voltage magnitude of is set in advance to be equal to the voltage magnitude of the first ground terminal.

 As described above, according to the present invention, the leading-edge control waveform, the trailing-edge control waveform, and the uncontrolled waveform are combined in controlling the phase angle of the AC power source to transmit the data, and the start point of the data other than binary is determined. It is possible to provide a data communication method and apparatus using phase angle control of an AC power supply which can securely communicate and efficiently communicate by displaying.

In addition, according to the present invention, by controlling the device by a method of controlling the phase angle of the AC power source so that data is transmitted using only the power line without any other communication line, the AC power source of creating an effect of reducing the cost for configuring the communication network A data communication method and apparatus using phase angle control can be provided.

In addition, according to the present invention using the phase angle control of the AC power that can be used to suit the environment of use by operating alone or by receiving data remotely via wired or wireless communication network by the data input from the external control unit or embedded data It is possible to provide a data communication method and apparatus.

1 is a diagram illustrating a control method used in a data communication method and apparatus using phase angle control of an AC power source according to an exemplary embodiment of the present invention.
2 is a detailed block diagram of a data communication device using phase angle control of an AC power supply according to a preferred embodiment of the present invention.
3 is a flowchart illustrating a data communication method using phase angle control of an AC power source according to an exemplary embodiment of the present invention.
4 is a transmitter circuit diagram used in a data communication method and apparatus using phase angle control of an AC power supply according to a preferred embodiment of the present invention.
5 is a view illustrating waveforms detected by a data communication method and apparatus using phase angle control of an AC power supply according to an exemplary embodiment of the present invention.
6 is a view showing waveforms read by a data communication method and apparatus using phase angle control of an AC power supply according to a preferred embodiment of the present invention.
7 is a view showing an embodiment of a modified AC power output to the receiver of the data communication method and apparatus using the phase angle control of the AC power according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a data communication method and apparatus using phase angle control of an AC power source according to embodiments of the present invention.

According to the present invention, the transmitter 200 receives the transmission target data packet 10 and the AC power source 20 inputted through an external communication network 30 configured by wire or wireless, and the AC power source according to the data packet 10. The modified AC power is generated by controlling the phase angle based on the first zero voltage point of 20, and the receiver 350 receives the modified AC power from the transmitter 200, and the second zero voltage point of the modified AC power is The present invention relates to a data communication method and apparatus using phase angle control of an AC power supply that reads and generates a bit value according to an on-off state of a second zero voltage point signal to detect and store a received data packet.

1 is a diagram illustrating a control method used in a data communication method and apparatus using phase angle control of an AC power source according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an AC power source generally has a characteristic of supplying power having a sinusoidal function having an opposite polarity every 1/2 cycle with a period of 60 Hz or 50 Hz.

As a method of controlling the phase angle of AC power, the leading edge cutting method of controlling the phase of the beginning of the waveform with respect to the zero voltage point existing at 0 degree and 180 degrees, and the phase of the end of the waveform There is a trailing edge control method. In this case, in the method of controlling the phase angle, only the leading edge control method or the trailing edge control method may be used, or the leading edge control method and the trailing edge control method may be used in combination.

In the communication method of the present invention, in the method of controlling the phase angle, data is transmitted by substituting a start bit or binary data into a leading edge control waveform, a trailing edge control waveform, and an uncontrolled waveform.

The present invention sequentially combines the waveform of the leading edge with the AC power source 20 and the data packet 10 input to the transmitter 200, the waveform with the trailing edge, and the waveform with no phase angle. By supplying to 350, the received data packet is transmitted.

The starting point of the communication corresponds to the leading edge or trailing edge control waveform, and the data to be transmitted is converted into binary so that the remaining phase angle control waveform corresponds to binary 1 or binary 0, and the phase angle is not adjusted. The waveforms are supplied sequentially and correspond to the complement of the binary values of the waveforms whose phase angles are adjusted to serially transmit the received data packets.

2 is a detailed block diagram of a data communication device using phase angle control of an AC power supply according to a preferred embodiment of the present invention.

Referring to FIG. 2, the present invention includes a transmitter 200 and a receiver 350.

The transmitter 200 includes a first zero voltage detector 230, a switching unit 240, a first control unit 250, and a communication unit 210.

The communication unit 210 receives the data packet 10 from an external terminal through a wired or wireless communication network and outputs the data packet 10 to the first control unit 250.

The first zero voltage detector 230 detects a first zero voltage point at which the voltage of the AC power supply 20 becomes zero voltage and outputs a first zero voltage point signal to the first controller 250.

The first controller 250 receives the first zero voltage point signal from the first zero voltage detector 230 and receives the data packet 10 through the communication unit 210 to respectively receive the data packet 10 at the first zero voltage point. Clothe.

In this case, the first control unit 250 previously stores the first switching signal that is switched from the off state to the on state, the second switching signal that remains on, and the third switching signal that is switched from the on state to the off state in advance.

The first zero voltage point is detected by the first zero voltage detector 230, and when the first zero voltage point is detected at the start of communication, a switching signal matched to the start bit is applied to the switching unit 240, and then the first zero voltage point is applied. Each time a point is detected, the corresponding switching signal matched to the bit value constituting the data packet to be transmitted is sequentially applied to the switching unit 240.

In this case, a first switching signal or a third switching signal is matched to the start bit, and two remaining switching signals are randomly matched to the binary 1 bit and the binary 0 bit except for the switching signal matched to the start bit.

That is, each time the first zero voltage point signal is input, the first controller 250 switches the corresponding switching signal to the corresponding first switching signal, second switching signal or third switching signal according to the data packet 10. Output to 240.

When the switching unit 240 receives the AC power source 20 and receives the first to third switching signals from the first control unit 250, the first to third switching signals are turned on. The alternating current power source 20 passes through the alternating current power source 20 and, in the off state, cuts off the alternating current power source 20 to output the generated alternating current power source.

At this time, the switching unit 240 may be implemented as a semiconductor switching device such as FET, Transistor, IGBT.

The receiver 350 of the present invention includes a second zero voltage detector 330 and a second controller 320.

The second zero voltage detector 330 receives the modified AC power output from the switching unit 240, detects a second zero voltage point at which the voltage of the modified AC power becomes a zero voltage, and generates a second zero voltage point signal. Output to the control unit 320.

The second control unit 320 sequentially receives the second zero voltage point signal and turns off the second zero voltage point signal during the half cycle based on the time point whenever the second zero voltage point of the modified AC power source is detected. In the case of maintaining the state, the case in which the case of maintaining the off state in the off state is determined. Accordingly, when the second zero voltage point signal is kept in the off state from the off state, the second zero voltage point signal is read with a bit value that is previously matched to the third switching signal. In the case of reading the bit value and maintaining the off state in the on state, the read data packet is read out with the bit value matched to the first switching signal in advance, and the received data packet is sequentially outputted. In this case, the second controller 320 stores the generated received data packet.

In addition, the data communication method and apparatus using the phase angle control of the AC power source of the present invention is configured in a 1: 1 ratio of the transmitter and the receiver are interlocked one by one to transmit the data packet to be transmitted to the corresponding receiver to communicate data, A plurality of receivers may be configured in one transmitter so that the transmitter may communicate data by transmitting a unique code of the corresponding receiver and a data packet to be transmitted to each receiver.

Hereinafter, an exemplary embodiment of a data communication method using phase angle control of an AC power source according to the present invention will be described in detail with reference to FIG. 3.

3 is a flowchart illustrating a data communication method using phase angle control of an AC power source according to an exemplary embodiment of the present invention.

First, the transmitter 200 receives a transmission target data packet consisting of a binary 1 bit and a binary 0 bit and an AC power supply 20 from the outside (step S210).

Next, the first zero voltage point detection unit in the transmitter 200 receives the AC power source 20 and detects the first zero voltage point of the input AC power source 20 (step S220).

Subsequently, a first switching signal to be turned on in an off state, a second switching signal to be kept in an on state, and a third switching signal to be turned off in an on state are respectively provided to the first control unit 250 in the transmitter 200. The start bit, the binary 1 bit, and the binary 0 bit are arbitrarily matched and stored, and the first zero voltage detector 230 detects the first zero voltage point. The matched switching signal is applied to the switching unit 240, and then the corresponding switching signal matched to the bit value constituting the data packet to be transmitted is sequentially applied to the switching unit 240 whenever the first zero voltage point is detected. (Step S230).

Next, the switching unit 240 in the transmitter receives the AC power source 20, receives the first to third switching signals from the first control unit 250, and the first to third switching signals. When the signal is in the on state, the AC power source 20 is passed, and in the off state, the AC power source 20 is cut off to output the generated modified AC power source (step S240).

Next, the second zero voltage detector 330 in the receiver receives the modified AC power output from the switching unit 240, sequentially detects the second zero voltage point, and transmits the same to the second controller 320 (step S310). ).

Then, the second control unit 320 sequentially receives the second zero voltage point, and whenever the second zero voltage point is detected, the second zero voltage point signal during the half cycle based on the time is turned on in the off state. In the case of maintaining the read state with a bit value matched to the third switching signal in advance, and in the case of maintaining the off state continuously, read as the bit value previously matched in the second switching signal, and maintains the off state in the on state. In this case, a read data packet obtained by sequentially reading the bit values matched to the first switching signal in advance is outputted (step S320).

In this case, whenever the second zero voltage point is detected, the second controller 320 determines the second zero voltage point signal during the half cycle based on the time point, and the second zero voltage point signal is a signal corresponding to the start bit. From that point on, create a receive data packet.

Then, the received data packet is stored in the storage unit 310 in the receiver (step S330).

4 is a transmitter circuit diagram used in a data communication method and apparatus using phase angle control of an AC power supply according to a preferred embodiment of the present invention.

First, the first zero voltage detector 230 will be described.

The general AC power supply 20 changes in magnitude and direction of voltage at a period of 50 or 60 Hz. The applied AC power supply 20 drops to a voltage recognizable in the circuit through the resistance distribution circuits R1, R2, and R3. The capacitor C1 connected to the portions of the bridge circuits D1, D2, D3, and D4 is charged by the voltage that changes with time, and is discharged through D5 when the voltage is lowered. The photocoupler OP2 is operated by the voltage charged in C1, and the low signal insulated by the zero voltage point signal input is input. When the voltage of the AC power source 20 reaches zero voltage according to the cycle, C1 is discharged to stop the operation of the photocoupler OP2 and the high signal insulated to the zero voltage point signal input terminal is input. Since the AC power source 20 generates two zero voltages in one cycle, the zero voltage point signal is generated at twice the frequency of the AC power source 20 frequency.

Since the circuit principle of the zero voltage detection unit is commonly used, a detailed description thereof will be omitted.

The switching unit 240 includes a first FET Q1, a second FET Q2, a photo coupler OP1, a zener diode, and a capacitor.

The first FET Q1 is an N-channel transistor. The drain terminal is electrically connected to the AC power source, the source terminal is electrically connected to the first ground terminal, and the gate terminal is electrically connected to the first node.

The second FET Q2 is an N-channel transistor, a source terminal of which is electrically connected to the first ground terminal, a gate terminal of which is electrically connected to the first node, and a modified AC power source is output to a drain terminal.

The photocoupler OP1 has a first end electrically connected to a first resistor connected to a first DC power supply Vcc, a second end electrically connected to a switching signal output end of the first controller, and a third end. Is electrically connected to a second resistor connected to a second DC power supply (Vdd), and the fourth stage is electrically connected to the second ground terminal, and when current flows from the first stage to the second stage, the third stage to the fourth stage Current is conducted.

The zener diode is electrically connected between the first node and the second ground terminal.

A capacitor is also electrically connected between the first node and the second ground terminal.

In addition, the first to third switching signals output from the switching signal output terminal of the first control unit, the voltage level of the on state is the same as the magnitude (for example 3.3V) of the first DC power supply (Vcc), the off state The voltage magnitude of is set in advance such that the voltage magnitude of the first node is equal to the voltage magnitude of the first ground terminal. The off state voltage magnitude of the first to third switching signals will be close to 0 V as the Low voltage.

That is, if the voltage applied to the switching signal output terminal of the first control unit is the same as the Vcc voltage of the first DC power supply, there is no voltage difference between the first and second terminals of the photocoupler, so that no current flows. Since no current flows between the stage and the fourth stage, the first node receives a voltage at which the second DC power supply Vdd is distributed at a constant rate. Therefore, in this case, the voltage applied to the first node is higher than the voltage of the first ground terminal so that the first FET flows current from the drain to the source, and the second FET flows current from the source to the drain. As a result, the input AC power passes through the drain terminal of the second FET as it is.

If the voltage applied to the switching signal output terminal of the first control unit is the low voltage described above, a voltage difference is generated between the first and second ends of the photocoupler, so that a current flows. Accordingly, the current is also applied between the third and fourth ends of the photocoupler. As a result, the voltage of the third terminal drops to the magnitude of the voltage of the second ground terminal, and thus the voltage of the first node also falls to a voltage similar to that of the second ground terminal. Therefore, in this case, the voltage applied to the first node is equal to the voltage of the first ground terminal, and thus the first node voltage applied to the gate terminals of the first FET and the second FET is equal to the first ground terminal. In both the first FET and the second FET, no current flows, and eventually the AC power input is interrupted.

The phase angle control operates on the basis of the first zero voltage point signal, and maintains the phase angle control circuit in the ON state until the next zero voltage point signal input based on the first zero voltage point signal in a period where the phase angle is not controlled. .

During the period for controlling the leading edge, the phase angle control circuit is kept OFF for the phase angle control time based on the zero voltage point signal, and the phase angle control circuit is kept ON until the next zero voltage point signal is input.

When the trailing edge is controlled, the phase angle control circuit is turned ON during the trailing edge control delay based on the zero voltage point signal, and the phase angle control circuit is kept OFF during the phase angle control time.

According to the present invention, three combinations of a leading edge control waveform, a trailing edge control waveform, and a waveform having no phase angle control are generated. Therefore, the starting point of the data can be displayed in addition to the case of representing the data in response to the binary data. By indicating the start point of the data by using the start signal by the start bit, it is easy to implement general serial communication configured to facilitate data communication.

5 is a view showing waveforms of a first zero voltage point detected by a data communication method and apparatus using phase angle control of an AC power source according to an exemplary embodiment of the present invention, and FIG. 6 is an alternating current according to a preferred embodiment of the present invention. A diagram showing waveforms read by a data communication method and apparatus using phase angle control of a power supply.

Referring to FIGS. 5 and 6, first, the first control unit 250 stores the first to third switching signals, and the first to third switching signals are connected to the AC power source 20 by the communication unit 210. A switching signal corresponding to the start bit, binary 1 or 0 by applying a start bit, binary 1 or 0, which is data inputted through), is applied to the switching unit 240 according to the input data. .

The first switching signal is a signal that is turned off and then turned on, the second switching signal is a signal that is continuously kept on, and the third switching signal is a signal that is turned from an on state to an off state.

In this case, the first switching signal is a state in which the switching signal is turned off only during the cut section by cutting the phase of the start portion based on the first zero voltage point of the AC power supply 20, and is turned on again from the uncut section. Leading edge control waveform.

Since the second switching signal has no phase change with respect to the first zero voltage point of the AC power supply 20, the switching signal is continuously turned on.

The third switching signal is in an on state until the section is cut off at the first zero voltage point because the switching signal is turned off only during a section cut by cutting a phase of an end portion based on the first zero voltage point of the AC power supply 20. Is turned off in the cut section, which is a trailing edge control waveform.

When the AC power source 20 is input to the transmitter 200, the first zero voltage point of the AC power source 20 detected by the first zero voltage detector 230 is input to the first controller 250.

In this case, the first control unit 250 stores a first switching signal that is switched from an off state to an on state, a second switching signal that is maintained in an on state, and a third switching signal that is switched from an on state to an off state. Each of the switching signal, the second switching signal, and the third switching signal is set to match the start bit or binary one or binary zero, respectively.

For example, when it is assumed that the first switching signal is matched to binary 1, the second switching signal is matched to binary 0, and the third switching signal is matched to start bit, the first controller 250 is the communicator 210. When the binary number 1 is inputted in the), the first switching signal corresponding to the binary number 1 is output to the switching unit 240.

The switching unit 240 cuts off the AC power source 20 in the OFF state according to the first switching signal, passes the AC power source 20 in the ON state, and applies binary 1 to the AC power source 20. The generated modified AC power is output to the receiver 350.

The second zero voltage detector 330 in the receiver detects the second zero voltage point of the modified AC power and transmits the second zero voltage point signal to the second controller 320.

In this case, the second control unit 320 is previously designated a half period to be determined based on the second zero voltage point.

For example, when the second control unit 320 is specified to be determined based on a half cycle of the modified AC power, the second control unit 320 detects the second zero voltage point when the modified AC power is input and refers to the second zero voltage point. It is judged at the end of the half cycle.

That is, the second control unit 320 reads the on-off state every time the modified AC power is input and the second zero voltage point signal is detected, and reads the on-off state at the end of the half cycle to turn the on-off state or It detects whether it remains off or on off and derives each received data packet accordingly.

In addition, the second controller 320 operates only when a switching signal matching the start bit is input based on the second zero voltage point of the modified AC power source.

For example, in the modified AC power source, when the second zero voltage point signal is turned on from the off state based on the second zero voltage point, the modified AC power source is a data start point.

7 is a view showing an embodiment of a modified AC power output to the receiver 350 of the data communication method and apparatus using the phase angle control of the AC power according to an embodiment of the present invention.

Hereinafter, the AC power source 20 is input to the transmitter 200, the data packet 10100101 is input from an external terminal, and the first control signal and the third switching signal are matched to binary 1 in the first controller 250, and the second A case in which the switching signal is set to match the binary zero and the second control unit 320 is set to read a half cycle period based on the second zero voltage point will be described as an example.

 Referring to FIG. 7, the second control unit 320 recognizes the start bit S as a start, wherein the start bit is changed from an on state to an off state during a half period based on the second zero voltage point. The switched or second zero voltage point signal is matched with a switching signal that is switched from an off state to an on state. That is, the start bit corresponds to the trailing edge control waveform or the leading edge control waveform.

Then, in the case where the second zero voltage point signal during the half cycle based on the second zero voltage point is switched from the off state to the on state, the bit value binary 1 matching the first switching signal is detected.

Then, in the case where the second zero voltage point signal during the half period with respect to the second zero voltage point remains off, a bit value binary 0 matched with the second switching signal is detected.

Then, in the case where the second zero voltage point signal during the half cycle based on the second zero voltage point is switched from the off state to the on state, the bit value binary 1 matching the first switching signal is detected.

Then, in the case where the second zero voltage point signal during the half period with respect to the second zero voltage point remains off, a bit value binary 0 matched with the second switching signal is detected. Then binary 0 is also the bit value from the same process.

Then, in the case where the second zero voltage point signal during the half cycle based on the second zero voltage point is switched from the on state to the off state, the bit value binary 1 matching the third switching signal is detected.

Then, in the case where the second zero voltage point signal during the half period with respect to the second zero voltage point remains off, a bit value binary 0 matched with the second switching signal is detected.

Then, in the case where the second zero voltage point signal during the half cycle based on the second zero voltage point is switched from the on state to the off state, the bit value binary 1 matching the third switching signal is detected.

As described above, the binary number 1 is a bit value matched with the first switching signal or the third switching signal, and the second zero voltage point signal for a half period based on the second zero voltage point is switched from the on state to the off state or the on state from the off state. It is output when switched to. The binary zero is matched with the second switching signal and output when the second zero voltage point signal for half a period based on the second zero voltage point remains off.

That is, the start bit corresponds to the leading edge or trailing edge control waveform, and the data to be transmitted is converted into binary so that the remaining phase angle control waveform corresponds to binary 1 or binary 0, and the phase angle is not adjusted. The waveform corresponds to the complementary number (01011010) of the binary value (10100101) of the waveform whose phase angle is adjusted, and is sequentially supplied to sequentially transmit the received data packet.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

100: data transmission method 200: transmitter
210: communication unit 230: first zero voltage detection unit
240: switching unit 250: first control unit
350: receiver 310: storage
320: second control unit 330: second zero voltage detection unit
10: data packet 20: AC power
30: external communication network

Claims (10)

(a) receiving, by the transmitter, a data packet to be transmitted and an AC power source including a binary 1 bit and a binary 0 bit;
(b) receiving, by the first zero voltage point detector, an AC power source in the transmitter and detecting a first zero voltage point of the input AC power;
(c) A first switching signal that is turned on from an off state, a second switching signal that remains on, and a third switching signal that is turned off from an on state are respectively a start bit and a binary number 1 bit to a first control unit in the transmitter. If the first zero voltage point is detected from the first zero voltage detector, and the first zero voltage point is detected at the start of communication, the switching signal matched to the start bit is applied to the switching unit. And sequentially applying a corresponding switching signal matched to a bit value constituting the data packet to be transmitted each time the first zero voltage point is detected;
(d) when the switching unit in the transmitter receives the AC power and receives the first to third switching signals from the first controller, the AC to third switching signals are on. Passing through and outputting the alternating alternating current power generated by shutting off the alternating current power in the off state;
(e) receiving, by the second zero voltage detection unit, a modified AC power output from the switching unit, sequentially detecting the second zero voltage point and transmitting the same to the second controller; And
(f) a second control unit sequentially receives the second zero voltage point, and whenever the second zero voltage point is detected, the second zero voltage point signal during the half cycle based on the time is maintained in the off state; In the case of reading the bit value previously matched to the third switching signal, and in the case of maintaining the off state continuously, in the case of reading the bit value previously matched to the second switching signal, and in the off state Reading the bit values matched to the first switching signal in advance and outputting a received data packet in which each read bit value is sequentially collected; Data communication method using phase angle control of the AC power supply including a.
The method of claim 1, wherein the half period,
The data communication method using phase angle control of the AC power source, which is stored in advance in the second control unit.
The method of claim 1, wherein the step (c)
The first switching signal or the third switching signal is matched to the start bit, and the other two switching signals except the switching signal matched to the start bit are arbitrarily matched to the binary 1 bit and the binary 0 bit, respectively. Data communication method using phase angle control of the.
The apparatus of claim 1,
A first FET Q1 having an N-channel transistor having a drain terminal electrically connected to the AC power source, a source terminal electrically connected to a first ground terminal, and a gate terminal electrically connected to a first node;
A second FET Q2 as an N-channel transistor, a source terminal of which is electrically connected to the first ground terminal, a gate terminal of which is electrically connected to the first node, and a modified AC power source is output to a drain terminal;
The first stage is electrically connected to a first resistor connected to the first DC power supply (Vcc), the second stage is electrically connected to a switching signal output terminal of the first controller, and the third stage is a second DC power supply (Vdd). Photocoupler electrically connected to the second resistor connected to the second resistor, and the fourth end is electrically connected to the second ground terminal, so that current flows from the third stage to the fourth stage when current flows from the first stage to the second stage. (OP1);
A zener diode electrically connected between the first node and a second ground terminal; And
And a capacitor electrically connected between the first node and a second ground terminal.
5. The method of claim 4,
In the first to third switching signals, the voltage level in the on state is the same as that of the first DC power, and the voltage level in the off state is equal to the voltage level of the first ground terminal. A data communication method using phase angle control of an AC power supply, which is set in the same manner as in the previous.
A first zero voltage detector configured to receive an AC power and detect a first zero voltage point of the input AC power; Receiving a transmission target data packet consisting of a binary 1 bit and a binary 0 bit from the outside, a first switching signal to be turned on in an off state, a second switching signal to be kept in an on state, and a third switching to be turned off from an on state The signal is randomly pre-matched and stored in the start bit, the binary 1 bit, and the binary 0 bit, respectively, and the first zero voltage detector detects the first zero voltage point. A first control unit which applies the matched switching signal to the switching unit, and sequentially applies the corresponding switching signal matched to the bit value constituting the data packet to be transmitted each time the first zero voltage point is detected; And receiving the AC power and passing the AC power when the first to third switching signals are turned on by receiving the first to third switching signals from the first controller. In one case, a transmitter comprising a switching unit for outputting the alternating AC power generated by blocking the AC power;
A second zero voltage detector configured to receive a modified AC power output from the switching unit and sequentially detect a second zero voltage point; And receiving the second zero voltage point sequentially, and when the second zero voltage point signal is maintained in the off state from the off state for a half period based on the time point when the second zero voltage point is detected, the third switching. Read with a bit value pre-matched to the signal, and read with a bit value pre-matched to the second switching signal in case of maintaining the off state continuously, and read in advance with the first switching signal in case of keeping the off state in the on state A second controller configured to read a matched bit value and output a received data packet in which each read bit value is sequentially collected; Data communication device using phase angle control of the AC power supply including a.
The method according to claim 6, wherein the half period,
A data communication device using phase angle control of an AC power source, which is stored in advance in the second control unit.
The method of claim 6, wherein the first control unit,
The first switching signal or the third switching signal is matched to the start bit, and the other two switching signals except the switching signal matched to the start bit are arbitrarily matched to the binary 1 bit and the binary 0 bit, respectively. Data communication apparatus using phase angle control of the.
The method of claim 6, wherein the switching unit,
A first FET Q1 having an N-channel transistor having a drain terminal electrically connected to the AC power source, a source terminal electrically connected to a first ground terminal, and a gate terminal electrically connected to a first node;
A second FET Q2 as an N-channel transistor, a source terminal of which is electrically connected to the first ground terminal, a gate terminal of which is electrically connected to the first node, and a modified AC power source is output to a drain terminal;
The first stage is electrically connected to a first resistor connected to the first DC power supply (Vcc), the second stage is electrically connected to a switching signal output terminal of the first controller, and the third stage is a second DC power supply (Vdd). Photocoupler electrically connected to the second resistor connected to the second resistor, and the fourth end is electrically connected to the second ground terminal, so that current flows from the third stage to the fourth stage when current flows from the first stage to the second stage. (OP1);
A zener diode electrically connected between the first node and a second ground terminal; And
And a capacitor electrically connected between the first node and a second ground terminal.
10. The method of claim 9,
In the first to third switching signals, the voltage level in the on state is the same as that of the first DC power, and the voltage level in the off state is equal to the voltage level of the first ground terminal. A data communication device using phase angle control of an AC power supply, which is set in the same manner as in the previous.

Images