KR890003633B1 - Power Line Carrier Home Control Circuit - Google Patents

Abstract

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Description

Power Line Carrier Home Control Circuit

1 is a block diagram according to the present invention.

2 is a detailed circuit diagram of FIG. 1 according to the present invention.

3 is a system outline according to the present invention.

4 is a waveform diagram of a power line carrier shape according to the present invention.

5 is a flow chart according to the present invention.

* Explanation of symbols for main parts of the drawings

10: power supply 20: oscillation and clock generator

30: micom part 40: switch part

50: amplification and transmission unit 60: synchronization unit

70: trap and waveform shaping circuit 80: reset part

90: selection unit 100: display unit

110: home channel unit 120: unit switch unit

The present invention relates to home automation, and in particular, all the lighting and home appliances in the home are connected to a cone center adapter, and then a main controller is installed in a living room or a home room to perform centralized control of home appliances at any one place. In addition, the present invention relates to a power line carrier home control circuit that can use an existing power line.

In general, home automation can remotely control all home appliances in the house by connecting a telephone with a home computer that controls various home appliances.

In addition, it is known that home appliances can be operated from the home, and the whole family can control the home appliances while going out.

In foreign countries, anyone who wants a button on a TV has developed a home-minder that uses a telephone to operate home appliances. This is because a small bag sized home minder is connected to the TV set so that the housewife's job is displayed on the screen. The housewife simply selects what is shown here and instructs him. For example, when a housewife wakes up in the morning and turns on the TV, a picture of a light, washing machine, rice cooker, and audio system appears on the screen. If you write a program for each hour in advance, the washing machine will run and clean according to the time.

The above-mentioned telephone control house and home minder remain a problem to realize when the installation price is expensive.

Accordingly, an object of the present invention is to provide a home automation system that can be used in a simple and inexpensive manner by using a power line installed in a home without separately installing a home appliance control line.

Another object of the present invention is to provide a system capable of centralized control in one place by connecting all the lighting and home appliances in the home to a cone center adapter and installing a main controller in a living room or a home.

Still another object of the present invention is to provide a method in which a carrier signal can be differently transmitted and controlled according to a household device to be controlled.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram according to the present invention, the power supply unit 10 for obtaining a DC power source for driving the system of the present invention from a corresponding AC power supply, and the oscillation and clock generation for generating a subcarrier signal by supplying a system clock to the control unit. The unit 20, a microcomputer unit 30 for outputting a control signal by performing a program command according to the input, and the sub-carrier that is switched in accordance with the control signal of the microcomputer unit 30 to control the home appliance is transmitted A switching unit 40 capable of amplifying and transmitting the output signal of the switching unit 40 so as to amplify a transmission signal so as to sufficiently control power of home appliances and lighting in a subset through a power line; A synchronization unit 60 which obtains a square wave from an input wave current output and determines an input / output timing based on the digital signal of the microcomputer unit 30 based on this signal; A trap and waveform shaping circuit 70 for trapping an arc to remove other signal components having a predetermined frequency and obtaining a square wave to shape a waveform, a reset unit 80 for initializing a system, and Selection unit 90 for selecting outing and lighting according to the operation, and the selection of the outgoing and lighting according to the selection of the selection unit 90 is displayed and when switching according to the controlled home appliance and the position to be illuminated, the microcomputer unit 30 Display unit 100 displayed according to the function according to the function so that the user can easily know by the control signal of the), the home channel unit 110 that can be specified according to the number of furniture and the function, and the home channel unit 110 It is composed of a unit switch unit 120 is processed by the microcomputer unit 30 according to the designation of the control unit to control the power of the power source and lighting.

2 is a system outline view according to the present invention, in which (A) is the main set and (B) is the subset.

For example, a main set (A) is installed in a home power supply center, and each power plug of a kitchen appliance (a rice cooker, a refrigerator, a coffee pot, ...) is connected to a cone center of a subset (B). By connecting and designating the home channel 21 according to the mechanism and function in the main set A, the corresponding part is turned on in the display unit 22 when the subset B and the designated device are the same. At this time, a predetermined signal is transmitted through the output surface power line to control the on / off of the home appliance.

Therefore, describing an embodiment of the present invention, the power supply unit 10 rectifies the applied power to a direct voltage power supply device to supply DC driving power to the system parts, and the synchronization unit 60 detects an AC zero crossing point to detect the microcomputer unit. Input the interrupter (INT) to (30) to hang the hardware interrupter.

Next, when the user selects lighting and outing in the selection unit 90 to perform the function, designates the furniture channel and the function in the home channel unit 10, and then operates the unit switch unit 120, the main and the main unit 30 are operated. Check that the operation key is a subset (A. B). The control signal is applied to the switch unit 40 by the key checked above, and the oscillation and clock generation unit 20 becomes a pulse train as a carrier according to the switching signal, and is amplified by the amplification and sending unit 50 and transmitted through the power line. When the carrier is loaded on the power line at 60 Hz, the carrier is demodulated by the trap and waveform shaping circuit 70, which is a demodulation unit on the subset B side, and inputted to the microcomputer unit of the subset B. At this time, the input signal is sensed and transmitted through the power line through the demodulator.

The signal transmitted from the subset B is input to the microcomputer 30 of the main mat A and displayed on the display unit 100. At this time, it is notified that the home appliances specified in the main set (A) and the home appliances to be controlled in the subset (B), and the power supply relay is controlled by the microcomputer of the subset (B) to turn on / off the applied power.

3 is a detailed circuit diagram of FIG. 1 according to the present invention, in which R ₁ to R ₃₉ are resistors, C ₁ to C ₂₅ are capacitors, Q ₁ to Q ₁₃ are transistors, D ₁ to D ₈ are diodes, and B ₁ ~ B ₄ is buffer, L ₁ ~ L ₂ is coil, LED ₁ ~ LED ₁₀ is light emitting diode, SW ₁ ~ SW ₁₂ is switch, ZD ₁ ~ ZD ₄ is zener diode, TR _{1 ~} TR ₂ is trans, BD is Bridge diodes, bridge diodes (BD), transistors (Q ₁₀ to Q ₁₃ ), transformers (TR ₂ ), resistors (R ₃ to R ₃₉ ), diodes (D ₃ to D ₈ ), zener diodes (ZD ₁ to ZD) ₄ ), a portion composed of capacitors C ₁₀ to C ₂₅ corresponds to the power supply 10, and a transistor Q ₆ , a capacitor C ₁₀ to C ₁₁ , C ₁₃ , a coil L ₂ , and a resistor ( R ₁₃ to R ₁₅ , R ₂₀ ) and the buffer B ₄ correspond to the oscillation and clock generator 20, and include resistors R ₉ to R ₁₂ and transistors Q ₄ to Q ₅ . the part corresponding to the switching unit 40 and transformer (TR _1), the transistor (Q ₁ ~ Q _2), a resistance (R _4), a capacitor (C ₁ ~ C ₄₎ Is configured the portion corresponding to the amplifying and transmitting unit 50 and the resistance (R ₁ ~ R _3), diode (D _1), a capacitor (C ₈ ~ C _9), the buffer (B ₁ ~ B _2), the variable resistance ( VR ₁ ) the portion corresponding to the synchronization unit 60, the resistor (R ₆ ~ R ₈ ), the capacitor (C ₅ ~ C ₇ ), coil (L ₁ ), transistor (Q ₃ ), buffer (B ₃₎ ) Corresponds to the trap and waveform shaping circuit 70, and the portion consisting of resistors R ₁₆ to R ₁₉ , diodes D ₂ , capacitors C ₁₂ , and transistors Q ₇ is a reset portion. Corresponding to 80, the components of the switches SW ₉ to SW ₁₁ correspond to the selector 90, and the light emitting diodes LED ₁ to LED ₁₀ , the resistors R ₁₁ to R ₃₀ , and the transistor Q ₈ to Q ₉ corresponds to the display unit 100, the switch SW ₁₂ corresponds to the home channel unit 110, and the components of the switches SW ₁ to SW ₈ correspond to the unit switch unit 120. Corresponds to).

Reference numeral 30 not detailed above is the same as FIG.

4 is a waveform diagram of a power line carrier according to the present invention, where (4a) waveform is an output control signal of the microcomputer unit 30 of FIG.

5 is a flowchart according to the present invention, in which FIG. 5 (a) is a main flowchart and FIG. 5 (b) is an interrupter flowchart.

Therefore, a specific embodiment of the present invention will be described in detail with reference to the above-described drawings. When the main set (A) and the subset (B) of FIG. 2 are plugged into the home power supply center, 110 / 120V through the bridge diode (BD). When the power is applied, it is rectified to DC and the half-wave rectified waveform is output through the diodes D ₅ to D ₆ . This signal switches the transistor Q ₁₀ . That is, according to the switching of the signal, the on-state of the transistor Q ₁₀ is switched off by the resistance R caused by the induced voltage of the transformer TR ₂ and the base voltage drop through the capacitor C. The energy "t-1" accumulated in the transformer TR ₂ is maintained along the secondary winding and rectified by the smoothing capacitor of the diode D ₇ and the capacitor C ₂₀ .

In addition, the transistor Q ₁₀ is repeatedly turned on and off by a resonant circuit of the coil L, the resistor R, and the capacitor C connected to the base of the transistor Q ₁₀ . It is set by the voltage V _CE on / off time. Transistor Q ₁₁ and zener diode ZD ₄ are also used to stabilize or determine the value of the secondary voltage induced.

Therefore, 5V for driving the microcomputer unit 30 is output to the line 11, and 16V to the line 12. When the output of this line 11 is V _CC1 , the output of the line 12 is V _CC2 .

Therefore, the two powers are supplied to the driving power of each part of the system. Initially, the microcomputer unit 30 is reset and initialized by driving the transistor Q ₇ .

In addition, when the power supply voltage rectified by the bridge diode BD is divided by the resistors R ₁ and R ₂ and passed through the buffer B ₁ , a square wave is output. Subsequently, a square wave slope is generated using a time constant, and the second buffer B ₂ is communicated to obtain a synchronization signal having a desired time length. This signal is input to the microcomputer 30 to set the interrupt time of the microcomputer execution as a reference point for the input / output of the digital signal.

When used as a main set transmitter, the switch SW ₁₂ , which is a home channel switch, is selected for each function according to the furniture and a predetermined switch is designated according to the operation of the unit switches SW ₁ to SW ₈ to be input to the microcomputer unit 30.

At this time, the microcomputer unit 30 determines in which of the subsets of the main set the operated key switch is operated in step 5b after the initial condition setting of 5a in FIG. In the case of the main set (5c), the control signal is sent to the subset through the power line to check the subset state (5d) and the key input state in the process (5d). Check the data and temporarily store it in step (6c) when there is input data, and set the input flag at (6e) when it is completed in step (6d).

Next, the transmission data of step (5d) of FIG. 5 is determined, and the transmission flag is set in step (5f) and checked by the microcomputer unit 30 by checking the presence or absence of an input flag set processed by the interrupter routine of step (5g). When the signal is output as shown in FIG. 4A, transistor Q ₅ is turned on and off to turn transistor Q ₄ on and off. That is, it has a specific unique digital code according to the operation of the home channel switch SW ₁₂ and the unit switches SW ₁ to SW ₈ so that the signal Q turns on and off the transistors Q ₄ and Q ₅ . ₆ ), a signal of 120 KHz is oscillated by the collector's coil (L ₂ ), capacitor (C ₁₃ ) and resistor (R ₂₀ ).

This oscillating signal becomes a subcarrier and amplifies push-pull by transistors Q ₁ and Q ₂ through the emitter of transistor Q ₆ to carry a carrier at 60 Hz through the transformer TR ₃ . If it is, it becomes like (4b) waveform of FIG.

At this time, if demodulated from subset (B) and input to subset micom unit, when received signal is dropped, it sends out signal through power line again, removes peak value by capacitor (C ₁ ), and removes the secondary side of transformer (TR ₁ ). past when the input to the base of the transistor (Q ₃₎ coil (L ₁ and 120Hz signal component by the trap circuit of the capacitor (C ₆₎ is removing and out takes only a square wave through the buffer (B ₃₎ is shaped waveform microprocessor unit At this time, the microcomputer unit 30 receives this signal and drives a predetermined portion of the light emitting diodes LED ₁ to LED ₈ to transmit the home channel SW ₁₂ and the unit switch SW ₁ to SW _{8 of the transmitter.} The sign of) is matched with the receiver, and the microcomputer in the subset (B) controls the power on / off of the appliance.

At the time of reception, the microcomputer 30 determines the subset B in the process (5b) of FIG. 5 and performs the processes (5c) to (5h) as described above.

Operation of the switch (SW ₁₀₎ according to the selection of the unit switch (SW ₁ ~ SW ₈₎ for operation by the other hand the switch (SW ₉₎ capable of manually controlling the on / off state of the consumer electronic devices in the subset of furniture within the power It can be turned off and by operating the switch (SW ₉ ) it is possible to control the light on / off by room.

As described above, remote operation is possible without the separate facility, and it is possible to operate in a circle, and it is a control method through a power line that is not obstructed by distance and obstacles, so it will be based on HA and BAS (Building Automation System) in the future. In addition to the centralized control of the lighting of the manual can be centrally controlled and also has the advantage that you can check the overall status of the use of home appliances at a time from the center.

Claims (1)

In the home appliance remote automatic circuit, the power supply unit 10 for obtaining a DC power source for driving the system from the corresponding AC power source, and the oscillation and clock generator 20 for supplying a system clock to the control unit to generate a subcarrier signal And a microcom unit 30 that outputs a control signal by performing a program command according to an input, and a subcarrier that is switched according to the control signal of the microcomputer unit 30 to carry and transmit a subcarrier capable of controlling a home appliance. A part 40, an amplifying and transmitting part 50 for amplifying a transmission signal so that the output of the switching part 40 sufficiently controls the power of home appliances and lighting in a subset via a power line, and from the input full-wave rectifier output The signal received from the power supply line and the synchronization unit 60 which obtains the square wave and determines the input / output time by the digital signal of the microcomputer unit 30 based on this signal. To remove the signal components of a predetermined frequency, obtain a square wave, and shape the waveform. The trap and waveform shaping circuit 70, the reset unit 80 for initializing the system, Selectable selection unit 90 and the selection of the selection unit 90, the outgoing and lighting selection is displayed and the user by the control signal of the microcomputer unit 30 when switching according to the controlled home appliance and the position to be illuminated The display unit 100 is displayed according to the function so that the easy to know, the home channel unit 110 that can be specified according to the number of furniture and the moisture of the function, and the microcomputer unit 30 according to the designation of the home channel unit 110 Power line carrier type home control circuit, characterized in that the unit switch unit 120 is processed in and controls the power of the home appliance power and lighting.

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