KR101352539B1 - Light controller for home automation system - Google Patents

Abstract

A lighting control device of a home automation system, comprising: a signal input unit for receiving a lighting control signal, a database for storing database-specific lighting control signals, a lighting control signal input to the signal input unit, or a lighting control signal stored in the database Based on the mode set by the user, the lighting control device of the home automation system including a control unit for controlling on / off, brightness, and color of the lighting device based on the lighting device may be variously adjusted. .

Description

LIGHT CONTROLLER FOR HOME AUTOMATION SYSTEM}

The present invention relates to a lighting control device, and more particularly to a lighting control device of a home automation system.

Patent No. 1079808 discloses a technique for wirelessly and efficiently controlling the LED light and the like without using a dedicated remote control.

This means that when the input signal has a periodicity, the signal learning control step of learning the input signal as the valid input signal by shaping the input signal into a valid input signal and storing the standardized valid input signal and the stored valid input signal are repeated. When the input is a technology including a switch control step of controlling the opening and closing of the switch unit for supplying power to the lighting unit.

On the other hand, Patent No. 1086276 discloses a plant light LED lighting control technology for optimizing the plant cultivation environment by adjusting the LED lighting.

This converts the AC voltage (AC) provided from the power supply unit into a DC voltage (DC) of a constant voltage, pulse width modulation (PMW), according to the LED lighting to maintain the desired brightness, by applying a color sensor to the amount of light, wavelength, It is a technology that optimizes plant cultivation environment by automatically controlling the operating conditions of each LED light by receiving data such as color temperature in real time.

An object of the present invention is to propose a lighting device of a home automation system that not only enables lighting control according to a situation-specific lighting control signal selected by a user, but also performs a lighting control function and a security function in connection with a remote user terminal. .

The technical problem is to turn on the lighting apparatus based on a signal input unit for receiving an illumination control signal, a database for storing a situation-specific illumination control signal in a database, and an illumination control signal input to the signal input unit or an illumination control signal stored in the database. It is achieved by the lighting control device of the home automation system including a control unit for performing the on / off, brightness and color control.

At this time, the controller performs on / off, brightness, and color control of the lighting apparatus through pulse width modulation (PWM) control.

The database stores and stores a database of lighting control signals for each user pattern, such as a plant cultivation mode and a study room mode.

The lighting control apparatus may further include a communication unit performing wireless communication with a remote user terminal, and the signal input unit receives the lighting control signal through the communication unit.

The lighting control apparatus may further include a display unit equipped with a touch pad function, and the signal input unit may receive an illumination control signal input through the display unit. In this case, the signal input unit receives an illumination control signal through an equalizer type user interface.

The lighting controller may further include a light detector configured to detect an amount of light in the surroundings, and the controller may further include at least one of backlight control, on / off, brightness, and color control of the display unit based on the amount of light detected by the light detector. Do one.

The lighting control apparatus may further include a voice recognition unit recognizing a voice signal input to a microphone, and the signal input unit receives the lighting control signal through the voice recognition unit.

The lighting control apparatus may further include a short range wireless communication unit configured to receive a light control signal from a remote controller, and the signal input unit may receive a light control signal through the short range wireless communication unit.

The lighting control apparatus may further include an image storage unit for storing image data and an image processor for receiving a captured image from a camera, processing the data, and storing the image data.

According to an aspect, the controller transmits image data stored in the image storage unit to a user terminal according to a user request. According to another aspect, the controller transmits the image data stored in the image storage unit to the server through the communication unit.

In addition, the lighting control device further includes a current sensing unit for sensing the amount of current flowing in the lighting device, the current sensing unit includes an OP AMP.

According to the present invention, the brightness, color, and color temperature of the illumination can be variously adjusted according to the mode set by the user. Specifically, it is possible to set the lighting of the study room differently for each language, repair, and foreign language area mode, and control the voice, remote control, or touch pad operation. In addition, it is possible to set and adjust the lighting of the horticultural house or veranda differently according to the plant growth stage or plant type.

In addition, it is possible to control the indoor lighting using the user terminal at a remote location. That is, when a user residing in Seoul travels to Busan, it is possible to control on / off and brightness of his / her home lighting. In addition, the home situation can be checked in real time with a user terminal such as a smartphone or a personal computer. For example, when an intruder is detected in the security function setting state, the home image may be transmitted to the user terminal.

In addition, there is a power saving effect by sensing the external brightness, and adjust the backlight brightness of the lighting device or the lighting control device accordingly.

1 is a block diagram showing a schematic configuration of a lighting control apparatus according to an embodiment;
2 is an exemplary view for explaining a configuration in which the lighting control device receives the operation control signal from the various operation control signal input means;
3 and 4 are exemplary diagrams for explaining a method of providing an image captured by a camera to a user terminal.
5 illustrates an example of a control screen on a touch pad according to an embodiment.
6 is an exemplary view for explaining a sub-microprocessor connection relationship of the lighting control apparatus according to an embodiment
7 is an exemplary view for explaining a lighting control and a current sensing function of the lighting control apparatus according to an embodiment
8 is an exemplary diagram of a user interface for the FET control block to receive an illumination control signal;
9 and 10 are exemplary diagrams for describing brightness and color control by an illumination control signal of a lighting device.
11 is an exemplary diagram for describing an operation of a current sensing block.
12 is a circuit diagram of a main power supply unit;

EMBODIMENT OF THE INVENTION Hereinafter, specific embodiment of this invention is described with reference to drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, and may be changed according to a user's or operator's intention or a convention thereof. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

1 is a block diagram showing a schematic configuration of a lighting control apparatus according to an embodiment.

As shown, the lighting control device of the home automation system according to an embodiment includes a signal input unit 100, a database 110, a control unit 120, a communication unit 130, a display unit 140, and a short range wireless communication unit 150. , A voice recognition unit 160, and a light detector 170.

The signal input unit 100 receives an illumination control signal. The signal input unit 100 processes a signal input through various devices to be described later into a signal that can be recognized by the controller 120, and transmits the signal to the controller 120.

The database 110 stores and stores a database of lighting control signals for each situation. For example, for various situations set by the user, such as a study room mode or a plant cultivation mode, a light control signal according to time or function setting is stored as a database.

The controller 120 is implemented as a central processing unit such as one or more microcomputers (MICOM) having a function of operation, comparison and determination or a CPU, MPU. In an exemplary embodiment, the controller 120 performs on / off, brightness, and color control of the lighting apparatus 10 based on an illumination control signal input to the signal input unit 100 or an illumination control signal stored in the database. In this case, the controller 120 performs on / off, brightness, and color control of the lighting apparatus 10 through pulse width modulation (PWM) control.

According to the present invention, the brightness, color, and color temperature of the illumination can be variously adjusted according to the mode set by the user. Specifically, it is possible to set the lighting of the study room differently for each language, repair, and foreign language area mode, and control the voice, remote control, or touch pad operation. In addition, it is possible to set and adjust the lighting of the horticultural house or veranda differently according to plant growth or plant type.

The communication unit 130 performs wireless communication with a remote user terminal. For example, wireless communication with a user terminal in a remote location is performed through Wi-Fi, Ethernet, or 3GPP wireless communication network. The communicator 130 transmits an illumination control signal received from the outside to the signal input unit 100. Accordingly, it is possible to control the indoor lighting using the user terminal at a remote location. That is, when a user residing in Seoul travels to Busan, it is possible to control on / off of his / her home lighting.

The display unit 140 displays information such as an illumination state. In this case, the display 140 may be equipped with a touch pad function to output a screen and receive an illumination control signal. The display unit 140 transmits an illumination control signal input through the touch pad to the signal input unit 100.

In this case, the signal input unit 100 provides an equalizer type user interface to the display unit 140. For example, the lighting color value or the brightness level can be input through an equalizer type interface.

The short range wireless communication unit 150 receives the lighting control signal from the remote control of the short range and transmits it to the signal input unit 100. The short range wireless communication unit 150 may be implemented as an IR communication module, an infrared communication module, or a Bluetooth module in one embodiment, but is not limited thereto.

The voice recognition unit 160 recognizes a voice signal input to the microphone. The data signal is converted into a digital signal, that is, an analog signal, and transmitted to the signal input unit 100.

The light detector 170 detects the amount of light in the surroundings. That is, it is possible to measure whether the place where the lighting device is installed is night or day, bright or dark. In one embodiment, the light detector 170 is implemented as a photo sensor. However, the present invention is not limited thereto.

The controller 120 may adjust the backlight of the screen of the display 140 based on the amount of light detected by the light detector 170. It also controls the lighting on / off, brightness and color. That is, even when a separate lighting control signal is not input, only 70% of the backlight of the screen of the display 140 is output at night, and 100% of the backlight of the screen of the display 140 is output during the day. In addition, it can be implemented to control the lighting device to automatically turn on the light at night, to lower the brightness level at a slightly darker level, and to automatically turn off the light at bright time.

According to a further aspect, the lighting control apparatus according to the present invention further includes an image processor 185 and an image storage unit 180.

The image storage unit 180 stores surrounding image data of the lighting apparatus photographed by the camera. The image storage unit 180 may be implemented as a memory chip mounted in the lighting control device or as a separate physical storage device such as a USB memory or an SD memory.

The image processor 185 receives the captured image from the camera, processes the data, and stores the processed image as digital data in the image storage unit 180. In one embodiment, the image processor 185 may include a video processing codec such as MPEG, DIVX.

Accordingly, the home situation can be checked in real time with a user terminal such as a smartphone or a personal computer. For example, when an intruder is detected in the security function setting state, the home image may be transmitted to the user terminal.

According to an aspect, the controller 120 transmits image data stored in the image storage unit 180 to the user terminal according to a user request. At this time, it can be transmitted to the user terminal via the router through the communication unit 130.

According to another aspect, the controller 120 transmits image data stored in the image storage unit 180 to the server through the communication unit 130. In this case, the server may be built externally, and may hold and hold a database of captured images by time and place. Then, it may be implemented to download the captured image data at the time and place from the server by the user request.

The lighting control apparatus according to an additional aspect further includes a current sensing unit 190. The current detector 190 detects an amount of current flowing through the lighting device connected to the lighting control device.

At this time, the current sensing unit 190 includes an OP AMP.

The control unit 120 may transmit the detection result in the current detection unit 190 to an external server such as KEPCO through the communication unit 130. In addition, the controller 120 may detect a malfunction of the lighting device or the lighting control device according to the current detection result of the current sensing unit 190. In this case, the malfunction notification may be output through the display unit 140 or transmitted to the user terminal or the manufacturer server through the communication unit 130.

Hereinafter, at least some functions of the lighting control device will be described in detail with reference to the accompanying drawings.

2 is an exemplary view for explaining a configuration in which the lighting control device receives an operation control signal from various operation control signal input means.

First, in an embodiment, the image captured by the camera 200 may be in CCIR601 format. The MPEG4 codec of System Block A decodes and encodes the image captured by the camera, converts the image into digital data, and stores the image in an internal memory, or an external storage device such as a USB 210. Store in

3 and 4 are exemplary diagrams for describing a method of providing an image captured by a camera to a user terminal.

As shown in FIG. 3, the lighting control apparatus 300 converts the photographed image into digital data and transmits the captured image to the remote server 310. The server 310 preferably stores the captured time and place information together with the database for the captured image data. Thereafter, when a request for image data is received from the user terminal 320, the corresponding image data is provided to the user terminal 320. In other words, it is possible for a user to check a living room situation in real time even in a remote place. In one embodiment, the lighting control device 300 encodes the captured image and transmits it to the server 310. The user terminal 320 implemented as a smart phone or a personal computer may access the server 310 and download image data. That is, it can be simply implemented by installing a user application or program.

As shown in FIG. 4, the lighting control apparatus 400 according to another embodiment directly connects the lighting control apparatus 400 and the user terminal 420 via the router 410 without building a server. First, when a request for the image data is received from the user terminal 420, the lighting control device 400 encodes the image data for the request, and provides it to the user terminal 420 via the router 410.

Voice data input to the microphone 220 shown in FIG. 2 is input through a voice discrimination module. The voice discrimination module converts the voice signal into a digital signal and outputs the voice signal as data that can be processed by the processor. In an exemplary embodiment, a button input tool function may be performed based on a voice signal input to the microphone 220. Alternatively, in one embodiment, the lighting control device may be implemented to recognize a gesture such as 'light 1 on' or 'main light on' based on an input voice signal and operate accordingly.

Additionally, the lighting control signal may be recognized based on the manipulation signal input to the remote controller 230. The remote controller 230 may transmit an operation signal through near field communication such as infrared communication or Bluetooth. For example, the remote controller 230 may control functions such as on / off of the main power lamp, on / off of lighting 1/2/3, menu setting of the lighting control device, and the like.

In another embodiment, an operation signal may be input from the capacitive touch pad 240 that also outputs information. The lighting control device may detect a capacitance generated by human contact and recognize a menu selection and a function key input. Key input is identified by sensing the X and Y coordinate values of the menu configuration key on the screen.

In this case, the touch pad 240 may be implemented as a display unit mounted on the lighting control device itself. However, the present invention is not limited thereto and is interpreted to include a touch screen display unit provided in a remote user terminal.

5 illustrates an example of a control screen on a touch pad according to an exemplary embodiment.

As shown in the drawing, a function menu of the lighting control device and a brightness pattern selection of the lighting device may be easily configured to input the lighting control signal. However, the present invention is not limited thereto and may be implemented to provide a selection screen step by step.

The light detector that receives the detection signal from the light sensor 250 shown in FIG. 2 recognizes the brightness of the surroundings. The lighting controller adjusts the backlight brightness based on the information recognized by the light detector. For example, by reducing the backlight brightness to 70% at night and 100% backlight brightness during the daytime, it is possible to flexibly control the backlight brightness of the screen and increase energy efficiency. Additionally, the brightness of the illumination may be controlled according to the degree of brightness recognized by the light detector.

In one embodiment, substantially passing the lighting control signal to the lighting device is performed in a sub-microprocessor (SUB MCU) separate from the processor of block A shown in FIG.

6 is an exemplary view for explaining a sub-microprocessor connection relationship of the lighting control apparatus according to an embodiment.

The sub microprocessor 600 performs UART (Universal Asynchronous Receiver / Transmitter) communication, which is an asynchronous communication method with the main microprocessor of block A, for example. The lighting control signal is input from the main microprocessor, and the main microprocessor provides a current sensing result obtained from block C, which will be described later.

In addition, the sub-microprocessor 600 receives power from the block D which is the main power supply.

In addition, the sub-microprocessor 600 may detect the current flowing in the FET control and lighting devices in conjunction with the block C.

7 is an exemplary view for explaining a lighting control and a current sensing function of the lighting control apparatus according to an embodiment.

As shown in FIG. 7, the lighting control according to the exemplary embodiment controls 0 to N steps for each of red, green, blue, and brightness elements as shown in the FET control block 700. By controlling the red, green, blue, and brightness elements of the connected lights 1, 2,..., N, the illumination color and the color temperature can be changed. For example, brightness 0 ~ 255 levels, red intensity 0 ~ 255 levels, green intensity 0 ~ 255 steps, blue intensity 0 ~ 255 steps, color temperature 300K (Warm White) ~ 7,000K (Cool) White) is implemented to be settable.

8 is an exemplary diagram of a user interface for the FET control block to receive an illumination control signal.

As illustrated in FIG. 8, an equalizer-type user interface is provided to receive a setting value for each element by moving the control bar through 0 to N steps for each of red, green, blue, and brightness elements.

9 and 10 are exemplary diagrams for describing brightness and color control by an illumination control signal of a lighting apparatus.

In one embodiment, the lighting device has a built-in constant current device to control the amount of light, color temperature and color by adjusting the respective LED current by the PWM (Pulse Width Modulation) signal sent from the lighting control device. That is, the lighting apparatus according to the embodiment is turned on in response to a signal modulated by the pulse width of the square wave through the pulse width modulation (PMW) driving.

As illustrated in FIG. 9, a PWM signal is output for each element. At this time, if the frequency of each element from 0 to 255 steps up / down, the DC output voltage level is changed by changing the frequency of the FET.

As can be seen in FIG. 10, when the frequency Freq is changed, the on / off time interval of the LED is changed. When the duty ratio, that is, the on / off time ratio is adjusted to generate a constant pulse, the LED recognizes the average value of the high value (ON) time of the pulse. And the same effect as applying the voltage at that ratio occurs. For example, if the duty ratio is 1, the voltage is recognized as 1/2. That is, the brightness of the lighting device can be adjusted by controlling the driving voltage value for each element.

In addition, the current sensing block 750 illustrated in FIG. 7 senses a current flowing through the lighting apparatus using an OP AMP for each lighting apparatus.

11 is an exemplary diagram for describing an operation of a current sensing block.

As shown, the current sensing block includes an OP AMP 1100 and a resistor 1110 to sense current flowing through the connected lighting device 1120.

In FIG. 11, the current flowing through the resistor 1110 and the lighting device 1120 is almost the same. Therefore, when a current flows through the lighting device 1120, a voltage difference increases across the resistor 1110, which is amplified and output through the op amp 1100. That is, the current value flowing to the lighting device 1120 may be calculated according to Ohm's law based on the output voltage value and the resistance value.

By sensing the amount of current flowing through a plurality of indoor / outdoor lighting devices, the power consumption of each light can be measured. The amount of carbon reduction can also be measured. In addition, it is possible to determine whether each lighting device is on or off.

12 is a circuit diagram of a main power supply unit.

As shown in FIG. 12, the main power supply unit receives a commercial AC voltage of 110 to 220 V, and converts the DC power into a DC voltage DC suitable for driving power of the lighting device. In addition, the driving power supply for the aforementioned microprocessor is supplied.

Although the present invention has been described in detail with reference to exemplary embodiments above, those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention. I will understand.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

100: signal input unit 110: database
120: control unit 130: communication unit
140: display unit 150: short-range wireless communication unit
160: voice recognition unit 170: light detection unit
180: image storage unit 185: image processing unit
190: current sensing unit

Claims (14)

A signal input unit receiving an illumination control signal;
Database for storing the situational light control signal to the database; And
And a controller configured to perform on / off, brightness, and color control of an illumination device based on an illumination control signal input to the signal input unit or an illumination control signal stored in the database.
The controller performs on / off, brightness and color control of the lighting device through pulse width modulation (PWM) control,
The database stores and stores a database of light control signals for each user pattern, such as plant cultivation mode and study room mode.
Lighting control device of the home automation system further comprises a current sensing unit for sensing the amount of current flowing in the lighting device. delete delete The method of claim 1,
Further comprising: a communication unit for performing wireless communication with a remote user terminal,
The signal input unit is a lighting control device of a home automation system for receiving a light control signal through the communication unit. The method of claim 1,
The display unit further includes a touch pad function.
And the signal input unit receives an illumination control signal input through the display unit. The method of claim 5, wherein
The signal input unit is an illumination control device of a home automation system that receives an illumination control signal through an equalizer type user interface. The method of claim 5, wherein
Further comprising a light detecting unit for detecting the amount of light in the surroundings,
And the control unit performs at least one of backlight control of the display unit, on / off of an illumination device, brightness and color control based on the amount of light detected by the light detector. The method of claim 1,
Further comprising: a voice recognition unit for recognizing a voice signal input to the microphone,
And the signal input unit receives an illumination control signal through the voice recognition unit. The method of claim 1,
Short-range wireless communication unit for receiving a light control signal from the remote control further;
And the signal input unit receives an illumination control signal through the short range wireless communication unit. 5. The method of claim 4,
An image storage unit for storing image data; And
And an image processing unit for receiving a captured image from a camera, processing the data, and storing the data in an image storage unit. 11. The method of claim 10,
The control unit is a lighting control device of a home automation system for transmitting the image data stored in the image storage unit to the user terminal in response to a user request. The method according to claim 10 or 11,
And the control unit transmits the image data stored in the image storage unit to the server through the communication unit. delete The method of claim 1,
The current sensing unit lighting control device of a home automation system including an OP AMP.

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