KR101293182B1 - Lighting illumination control system and method using power line - Google Patents

Abstract

PURPOSE: An illumination control system and an illumination control method of a lamp using a power line are provided to include a relay with less conduction loss, thereby reducing the power loss. CONSTITUTION: An illumination input device (10) receives an input of an illumination value of a lamp in which a user desires. A control information input device (20) generates the control information about the illumination value. The control information input device inputs the control information to a power line. An illumination power source device (30) senses the control information from the AC power source. The illumination power source device recognizes the current value and controls the illumination of the lamp. [Reference numerals] (AA) Input AC power supply; (BB) Switch; (CC) Switched AC power supply

Description

Illumination control system and illumination control method using power line {LIGHTING ILLUMINATION CONTROL SYSTEM AND METHOD USING POWER LINE}

The present invention relates to an illumination illumination control system using a power line and a control method thereof, and more particularly, by controlling the phase of the AC power waveform supplied to the illumination for a predetermined time to transmit the illumination value of the desired illumination and use the same It relates to an illumination illumination control system using a power line that can control the illumination of the illumination by the same and a control method thereof.

LED (Light Emitting Diode) lighting is the most popular lighting in the lighting market. LED lighting has a number of advantages over fluorescent and incandescent bulbs, which are the most commonly used lighting devices to date. First, it generates less energy and has higher energy efficiency, and secondly, the service life of the product is longer than that of other lights. Third, it does not use mercury or gas for discharging. Due to these advantages, existing fluorescent and incandescent lamps are increasingly being replaced with LED lights.

As described above, in replacing the existing light with the LED light, it is possible to minimize the replacement cost by using the existing wiring and to turn on or off the LED light using the existing switch.

However, the existing wired communication method (DMX, DALI) and wireless communication method (Zigbee, RF) for controlling the illumination of illumination have to install a separate communication line between the controller and the luminaire to control the illumination of the illumination or expensive. Because of the need for a wireless interface, it was not suitable as a low-cost lighting control system for intuition lamps.

As a way to solve this problem, the lighting control method using power line communication that can minimize the installation cost by utilizing the existing infrastructure is more advantageous.

Conventional power line communication has been developed for the purpose of transmitting data using a power line installed in an individual home or building, and recently, it is used to collect power data from a local power grid or to control lighting of some security lamps and street lamps. Despite the advantage that the power line can be used as a communication line, which requires less installation cost than other control methods, it requires a complicated and expensive electronic circuit for loading or separating digital data into a high voltage power supply. There are limitations to the application where necessary.

In the case of unidirectional illumination control, the amount of information required for transmission is very small and the frequency of information transmission is very small. Therefore, the illumination control method using low-cost power line phase control is suitable as the illumination control method of LED lighting instead of the conventional method of power line communication. Many researches and developments on simple lighting control using power lines are in progress.

Looking at the contents of the prior patent application for the illumination control using the research and development as described above are as follows.

First, look at Korea Patent Publication No. 10-2003-0065854, by varying the average value of the input voltage supplied to the illumination to adjust the maximum illumination and the lowest illumination in accordance with the change of the voltage or by adjusting the phase at a certain period of the AC power waveform It is a patent on a method of transmitting 1 bit of information in each cycle.

Second, look at Korea Patent Publication No. 10-2008-0099124, the control device and control for controlling the power of several lighting equipment by adjusting the phase of each cycle of the AC power waveform to transmit information of 1bit per cycle and combine them It is a patent on a method.

Referring to Korean Patent Publication No. 10-2010-0120254, it is a patent for a device for controlling illumination intensity of light by changing the number of signals that block or conduct the waveform of AC power supplied to the light.

As described above, there are various patents related to lighting control using power lines, but there are some problems. The patent, which transfers 1 bit of information per cycle of the AC waveform, uses low-speed digital communication of 100 to 120bps, resulting in a long transmission time, and repeated phase control of the power supply to transmit a control signal using a power line. This degrades the quality of the circuit and adversely affects the connected circuit. In addition, there is a problem in the communication using the power line when the waveform of the AC power is not constant because of a problem in the power supply.

The present invention has been made in order to solve the above problems, by inputting the control information about the illumination during the half cycle of the voltage waveform supplied to the illumination to control the illumination of the illumination generated by communicating with information of 1 bit per period of the voltage waveform The illumination illumination control system using a power line and its control, characterized in that to solve the problem, and insert a confirmation code at a specific position of the AC waveform in case the power supply has a problem and the waveform of the AC power is not constant. The purpose is to provide a method.

Illumination control system of illumination using the power line according to the present invention is an AC power supply for generating a control information on the illumination value received from the illumination input device, the illumination input device receives the illumination value of the desired illumination, the AC power supply to the illumination A control information input device input to the control device and an illumination power supply device that senses the control information from an AC power supplied to the lighting through the power line, grasps a current value corresponding to the control information, and adjusts the current output to the LED light source. The control information is characterized in that the information on the time when the AC power is momentarily cut off.

And the control information input device of the present invention includes an AC switching element for temporarily shutting off the AC power for inputting the control information, wherein the control information includes the illuminance from the zero cross of the AC power in the half-cycle section of the AC power. It is characterized in that it is a firing angle in a predetermined instantaneous interruption time according to the value, that is, phase control of the power supply.

In addition, the AC switching element is characterized in that the triac.

The apparatus further includes a relay connected in parallel to the triac, and when the illuminance value is not input, power is supplied to the lighting by using the relay contact point. When the illuminance value is input, the relay is opened and the triac is opened. And inputting the control information.

The control information input device may further input a confirmation code for confirming the control information, and the lighting power supply may adjust the current output to the LED light source according to the control information when both the control information and the confirmation code are detected. It is characterized by adjusting the illuminance of the illumination.

Illuminance control system and illumination control method using the power line according to the present invention has the following effects.

The illumination intensity of the light can be controlled simply by using information about the time (conduction angle) at which the power supplied to the light is temporarily interrupted during the half cycle of the AC power supply.

In addition, during the half cycle of AC power supplied to the lighting, the phase control is performed so that the voltage becomes zero voltage for a time set from the immediately after zero cross by the illuminance value, and the illumination intensity of the lighting is adjusted according to the time that the zero voltage is maintained from the zero cross point. As a result, the transmission time of the illumination information is shorter than the method of transmitting the information over several cycles of the AC power source, and the power is not cut off due to the phase control, thereby minimizing power degradation.

In addition, in case of a problem in power supply and the waveform of AC input voltage is not constant, an additional illuminance control can be avoided by inserting a minimum confirmation code during a separate half cycle.

In addition, in addition to the triac, which is a component for phase control of the AC current waveform, a relay having a relatively low conduction loss is further included in parallel, so that the current flows to the triac only when the illuminance is required, so that most of the illuminance is not controlled. It can reduce the power loss caused by delivering power to the lights over time.

1 is a circuit diagram of an illumination control system of illumination using a power line according to the present invention.
2 is a waveform diagram of an AC power source controlled by an illumination intensity control system using a power line according to a first embodiment of the present invention.
3 is a waveform diagram of an AC power source controlled by an illumination intensity control system using an electric power line according to a second embodiment of the present invention.
4 is a waveform diagram of an AC power source controlled by further inserting an identification code according to the present invention.
5 is a circuit diagram of an illumination illumination control system using a power line further including a relay device according to the present invention.
6 is a waveform diagram of an AC power supply controlled by an illumination intensity control device for lighting using a power line further including a relay device according to the present invention, and further including a confirmation code.

Hereinafter, with reference to the drawings will be described in detail the illumination control system of illumination using a power line according to an embodiment of the present invention. 1 is a circuit diagram of an illumination illumination control system using a power line according to an embodiment of the present invention, Figures 2 and 3 are alternating current controlled by an illumination illumination control system using a power line according to an embodiment of the present invention This is a waveform diagram of a power supply.

First, referring to FIG. 1, the illumination control system according to the present invention controls the illumination input device 10 for adjusting illumination intensity and an input illumination value in addition to a switch for adjusting ON / OFF of an illumination switch installed on a wall. A control information input device 20 for generating information and inputting the power line is provided. The control information input device 20 detects the control information input by the control information input device 20 and detects an illumination value corresponding to the illumination information. The lighting power supply 30 for adjusting is provided to adjust the illuminance of the LED lamp according to the illuminance value input by the user through the illuminance input device 10.

In more detail, the illuminance input device 10 serves to input an illuminance value for the user to adjust the illuminance of the illumination. The method of inputting the illuminance value may be a dial method or a button method, and may be any other method of selecting and inputting a desired illuminance value or a predetermined illuminance level.

The control information input device 20 is a device that inputs control information corresponding to the illuminance value received from the illuminance input device 10 to an AC power source for lighting and sends it to the light.

In the present invention, the control information is characterized in that the information on the time when the AC power is cut off, for this purpose, the control information input device 20 may include an AC switching element 22 that can cut off the AC power. . Triacs and relays may be used as the AC switching element, but it is more preferable to use triacs than relays for instantaneous interruption of the power supply.

In addition, the control information input device 20 may include a timing circuit 21 for operating the AC switching element according to the control information, and the timing signal is a point at which the AC power should be cut off to input the control information. It serves to operate the AC switching element 22.

The lighting power supply device 30 detects the control information from the AC power transmitted from the control information input device 20 to determine the current value corresponding to the control information and outputs the current output to the lighting (for example, an LED light source). It is a device to control the illumination of lighting. Since the control information in the present invention is information on the time when the AC power is cut off, the lighting power supply unit monitors whether the AC power delivered to the light is cut off, and grasps the time of the section where the AC power is cut off to illuminate the user. Adjust the illuminance of the light with the current value corresponding to the value.

That is, the control information input device 20 and the lighting power supply device 30 of the present invention are input predetermined control information for the time (S) that the AC power should be cut off according to the illuminance value, the control information input device is When the illuminance value is input by the illuminance input device 10, the control information corresponding to the illuminance value is searched for, so that the AC power is cut off during the corresponding time S, and the lighting power device 30 is a time when the AC power input to the light is cut off. (S) is detected and the corresponding current value is found.

In the present invention, a method of inputting control information by the control information input device 20 according to an illumination value and a method of detecting an input control information by the lighting power supply device 30 and grasp a current value corresponding to the control information are shown in the drawings. When described in more detail by reference as follows.

2 shows an AC power waveform diagram controlled by the illumination intensity control system according to the first embodiment of the present invention.

In the first embodiment of the present invention, the time S refers to a time when the AC power is cut off, and more specifically, a time section cut off. There is no particular limitation on the location where AC power is momentarily cut off, but using zero cross (zero voltage crossing point) of AC power as a starting point is more effective in terms of system stability and ease of system implementation.

If this is described in more detail with reference to FIG. 2, when the user inputs it through the illuminance input device 10 to adjust the illuminance to a level of 40%, for example (illumination value input process), the control information input device 20 is This is detected so that zero voltage is maintained for a time S4 corresponding to 40% illuminance from zero cross (control information input process). In other words, when the illuminance value is input, the timing circuit 21 controls the AC switching element 22 to be operated for a period of time from zero cross to S4.

When the switched AC power is delivered to the lighting, the lighting power supply device 30 detects this and checks that the AC power is cut off for a period of time from zero cross to S4. Adjust the illuminance of the light by adjusting the output current (illumination adjustment process).

As shown in FIG. 2, when the user inputs an illuminance value through the illuminance input device 10 to adjust the illuminance to a level of 60%, the control information input device 20 detects this and starts from zero cross. The AC power is cut off by the time S6 corresponding to the% illuminance, and the lighting power supply 30 detects that the AC power is cut off from the zero cross for S6 and adjusts the illuminance to the corresponding 60% illuminance. do.

The time (S) corresponding to the illuminance value may be a predetermined time to correspond to the illuminance value one-to-one without configuring to have a special rule, but for example, 40% of the half cycle of AC power when the illuminance is adjusted to a level of 40%. It can also be configured to have certain rules, such as turning off the power while

3 shows a waveform diagram of an AC power source controlled by the illumination intensity control system according to the second embodiment of the present invention.

In the second embodiment of the present invention, the time (S) means a time difference at which the AC power is momentarily interrupted, more specifically, a time difference at which the AC power is momentarily interrupted. The current difference can be determined using the time difference at the moment of interruption.

However, if the zero cross of the AC power is used as a synchronization signal, the control information can be input even if the AC power is cut off once in the control information input device 20, and the lighting power supply 30 has a time difference between the zero cross and the AC power interruption point. It is more effective because it can identify the corresponding current value.

This will be described in more detail with reference to FIG. 3. For example, when a user inputs it through the illuminance input device 10 to adjust the illuminance to a level of 40% (illumination value input process), the control information input device 20 This is detected so that the AC power is cut off at the time delayed at zero cross by the time S'4 corresponding to 40% illuminance from zero cross (control information input process). That is, when the illuminance value is input, the timing circuit 21 controls the AC switching element 22 to be activated after a time S'4 from zero cross.

When the switched AC power is delivered to the lighting, the lighting power supply device 30 detects this and when the AC power is momentarily cut off after a time delay from zero cross by S'4, that is, a current value corresponding to S'4, Adjust the illuminance of the light by adjusting the current output to the light by 40% (light adjustment process).

As shown in FIG. 2, when the user inputs an illuminance value through the illuminance input device 10 to adjust the illuminance to a level of 60%, the control information input device 20 detects this and starts from zero cross. The AC power is cut off at the time delayed by zero cross by the time (S'6) corresponding to the% illuminance, and the lighting power supply detects that the AC power is momentarily cut off after S'6 by using the zero cross as a synchronization signal. And adjust the illuminance to the corresponding 60% illuminance.

Also in the second embodiment, the time S 'corresponding to the illuminance value is not configured to have a special rule, but may be configured to have a predetermined rule although it is a predetermined instantaneous blocking position so as to correspond to the illuminance value one-to-one.

As described above, the illumination control system and method according to the present invention can control the illumination by a simple method of temporarily blocking the AC power provided to the illumination power line, so that the illumination control can be controlled very simply and quickly compared to the conventional methods.

In addition, the illumination control system according to the present invention can be adjusted by the user at any stage of illumination. That is, in the conventional illuminance control method, if the illuminance stage is 4 stages of 0, 1, 2, and 3, the illuminance control apparatus according to the present invention may adjust the illuminance in two stages after the first stage after the zero stage. You can adjust the illuminance in three stages, and again in two stages.

However, the illumination control method according to the present invention may be wrongly recognized as a dimming control signal when the waveform change of the AC power, such as a momentary power failure, is not intended by the user. Therefore, when inputting the illuminance control signal, it is more preferable to further input a confirmation code (D) confirming that this is the illuminance control signal.

The confirmation code input method may be inputted by inputting the illumination control signal twice in succession or by temporarily cutting off the AC power at a predetermined point.

As shown in Fig. 4, the promised point is preferably the zero-cross point at which the next half-cycle of the half-cycle in which the illuminance control signal is input is started.

However, this is only an exemplary method, and any confirmation code that can confirm that it is a control signal can be used. Although FIG. 4 shows an example of inserting a confirmation code in Embodiment 1, the same confirmation code in Embodiment 2 is also used. Those skilled in the art will readily understand that can be used.

5 and 6 are views of a third embodiment according to the present invention, in which a relay is further added to an illuminance adjusting device for lighting using a power line shown in FIG. 1.

5 is a circuit diagram of an illumination illumination control system using a power line further including a relay device. Since the triac illustrated as an example of the AC switching element 22 has a large internal resistance and a large power consumption, an AC power source that supplies lighting to most of the time when the relay is connected in parallel with the AC switching element and the illumination control is not performed. This relay 23 is to be supplied.

However, if it is necessary to use an AC switching element for the input of control information of the lighting, the AC power is passed through the AC switching element by breaking the relay, and the control information is input to the AC power using the AC switching element. When the control information is input to the AC power, the relay is connected again to supply AC power to the lighting through the relay.

6 is a waveform diagram of an AC power source controlled by an illumination intensity control system using an electric power line further including a relay device. As shown in FIG. 6, when the user inputs an illuminance value, the relay is turned off so that the triac inputs control information to the AC power, and when the control information is inputted, the relay is connected again to provide the AC power through the relay. To reduce power dissipation due to the use of triacs.

Until now, the illumination control system and the illumination control method of the illumination using the power line according to the present invention have been described in detail with reference to the accompanying drawings, but this is only one embodiment, and the spirit of the invention as claimed in the appended claims. And various changes and modifications can be made without departing from the scope thereof.

10: illuminance input device 20: control information input device
21: timing circuit 22: AC switching element
23: relay 30: lighting power supply

Claims (8)

An illuminance input device configured to receive an illuminance value of a light desired by a user;
A control information input device for generating control information on the illuminance value received by the illuminance input device and inputting the control information to a power line for supplying AC power to the illumination; And
An illumination power supply device that senses the control information from an AC power source supplied to the illumination through the power line and grasps a current value corresponding to the control information to adjust illumination intensity of the illumination;
And,
The control information input device inputs the control information by momentarily shutting off the AC power after a time corresponding to the illuminance value within a half-cycle period from zero cross of the AC power, and the lighting power device inputs zero cross of the AC power. And the current value is determined using the time difference between the points where the AC power is momentarily interrupted.
The method of claim 1,
The control information input device further inputs a confirmation code for confirming the control information, and the lighting power supply device adjusts the illuminance of the illumination according to the control information when both the control information and the confirmation code are detected. Illumination control system using power line.
The method of claim 2,
The control information input device includes an AC switching element for inputting the control information or the confirmation code.
The method of claim 3,
The AC switching element is a triac,
And a relay connected in parallel to the triac, and when the illuminance value is not input, power is supplied to the lighting by using the relay contact, and when the illuminance value is input, the relay is opened and the triac is used. Illumination control system using a power line, characterized in that for inputting the control information.
Illumination control method using the power line is composed of the illumination value input process, control information input process, the illumination control process,
The illuminance value input process may include receiving an illuminance value from a user;
The control information input process may include: determining an interruption time of an AC power source according to the received illuminance value and inputting control information to the AC source by temporarily cutting off AC power for lighting after the determined interruption time from zero cross; And
The illuminance adjustment process detects the control information from the AC power supplied to the illumination, grasps the current value corresponding to the time difference at which the zero cross and the AC power are momentarily interrupted, and adjusts the current output to the illumination to adjust the illuminance of the illumination. Illumination control method using the power line, characterized in that for adjusting the step.
The method of claim 5,
In the control information input process further inputs a confirmation code for confirming the control signal, and if the control signal and the confirmation code is confirmed in the illumination control process, the illumination using the power line, characterized in that for adjusting the illumination according to the control signal How to adjust illuminance delete delete

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