KR102109404B1 - Light emitting diode lighting apparatus and method for controlling the same - Google Patents

Abstract

Provides an LED lighting device and its control method. The LED lighting device includes a light emitting unit including a plurality of LEDs, a sound source receiving unit receiving an audio source from the outside, an analog-digital converter converting the audio source received from the sound source receiving unit into a digital signal, and filtering the converted digital signal It includes a control unit for detecting the number of bits during a unit cycle, and determining the implementation speed of the LED light emitting pattern by matching the detected number of bits to a predetermined number of frames, and a driver for driving the LED at the determined implementation speed, The LED light emission pattern includes at least one of the LED light emission order, the number of light emission, and the shape of light emission. Therefore, the implementation speed of the LED light emitting pattern may be changed according to the beat of the audio.

Description

LED lighting device and its control method {Light emitting diode lighting apparatus and method for controlling the same}

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device capable of sound interlocking control and a control method thereof.

The lighting industry has a long history, and it is very closely related to humanity.

In recent years, the lighting industry continues to develop, and various studies have been conducted on LED light sources, light emission methods, driving methods, and efficiency improvements.

Currently, as an LED light source mainly used for lighting, incandescent lamps, discharge lamps, and fluorescent lamps are mainly used, and are used for various purposes such as household, landscape, and industrial purposes.

Resistive LED light sources, such as incandescent lamps, have low efficiency and high heat generation problems, high-voltage and high-voltage problems for discharge lamps, and environmental problems caused by mercury in fluorescent lamps.

In order to solve the shortcomings of these LED light sources, interest in light emitting diode (LED) lighting, which has many advantages such as efficiency, color diversity, and autonomy of design, is increasing.

 LED is a semiconductor device that emits light when voltage is applied in a forward direction, has a long life, low power consumption, has electrical, optical, and physical properties suitable for mass production, and is rapidly replacing incandescent bulbs and fluorescent lamps.

On the other hand, the application range of the lighting device is expanding beyond the original purpose for indoor lighting, such as for the purpose of aesthetic effects such as decoration and interior, or for the purpose of inducing a positive psychological effect.

1. Patent Publication No. 10-2009-0071720 (published on July 2, 2009)

The problem to be solved by the present invention is to provide an LED lighting device in which the implementation speed of the LED light emitting pattern is changed according to the beat of the audio source.

Another problem to be solved by the present invention is to provide a method for controlling an LED lighting device in which the implementation speed of the LED light emitting pattern is changed according to the beat of the audio.

In order to achieve the above object, an aspect of the present invention provides an LED lighting device. The LED lighting device includes a light emitting unit including a plurality of LEDs, a sound source receiving unit receiving an audio sound source from the outside, an analog-digital conversion unit converting the audio sound source received from the sound source receiving unit into a digital signal, and the converted digital signal. Filtering to detect the number of bits during a unit period, and a control unit for determining the implementation speed of the LED light emitting pattern by matching the detected number of bits to a predetermined number of frames and a driver for driving the LED at the determined implementation speed, , The LED light emitting pattern may include at least one of an LED light emission order, light emission number, and light emission shape.

It is characterized in that the LEDs of the light emitting unit are arranged in at least one line, and the LEDs are emitted at the determined implementation speed according to a predetermined LED emission order.

It is characterized in that the implementation speed of the LED light emitting pattern is also varied to correspond to the variation of the beat of the audio source.

The controller obtains an average value (A) whenever the number of data of the converted digital signal is X, and a filtering unit for low-pass filtering the converted digital signal and counting the peak number of the filtered digital signal to bit It characterized in that it comprises a bit detector for detecting the number.

The filtering unit is characterized in that the low-pass filtering of the converted digital signal at least three times.

When the number of detected bits corresponds to a predetermined number of frames, as the number of detected bits increases, the number of frames corresponding thereto increases with a constant weight.

A memory unit for storing the LED light emission pattern may be further included.

It may further include a sound source reproducing unit for reproducing the audio source received from the sound source receiving unit.

The sound source reproducing unit may include an amplifier for amplifying the received audio sound source and a speaker for reproducing the amplified audio sound source.

The sound source receiving unit may include a wireless module or a wired module.

In order to achieve the above object, another aspect of the present invention provides a method for controlling an LED lighting device. The LED lighting device control method includes receiving an audio source from the outside, converting the received audio source to a digital signal, filtering the converted digital signal, and detecting the number of bits during a unit cycle, the detection Comprising the number of bits corresponding to a predetermined number of frames, determining the implementation speed of the LED light emitting pattern in response to the number of frames and driving the LED at the implementation speed of the determined LED light emitting pattern, the LED The light emission pattern may include at least one of an LED light emission order, number of light emission, and light emission pattern.

The step of filtering the converted digital signal and detecting the number of bits during a unit period is obtained by obtaining an average value (A) whenever the number of data of the converted digital signal is X, thereby low-passing the converted digital signal. And a filtering step of filtering and counting the number of peaks of the filtered digital signal to detect the number of bits.

The filtering step of performing low-pass filtering on the converted digital signal is performed at least three times.

The driving of the LED at the implementation speed of the determined LED pattern is characterized by driving the LED at the implementation speed of the LED pattern determined according to the beat of the audio source while reproducing the received audio source.

According to the present invention, it is possible to implement a more natural operation of the LED light emitting pattern by applying an algorithm for detecting the number of bits of an audio source to the LED lighting device.

In addition, by applying such an algorithm, it is possible to produce a more effective LED light emitting pattern in response to reproduction of various sound sources.

In addition, according to the variation of the beat of the audio source, the speed of implementation of the LED light emission pattern is also changed, so that it is possible to realize emotional lighting to better match the musical atmosphere.

The technical effects of the present invention are not limited to those mentioned above, and other technical effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a schematic block diagram of an audio interlocking circuit of an LED lighting device according to an embodiment of the present invention.
2 is a flowchart illustrating a method for controlling an LED lighting device according to an embodiment of the present invention.
3 is a flowchart illustrating an audio interlocking bit detection algorithm of an LED lighting device according to an embodiment of the present invention.
4 is a graph showing an audio signal input to the A / D converter.
5 is a waveform graph showing a signal input to the A / D converter as a digital component.
6 is a graph showing a modeling waveform and a number of bits of an audio waveform.
7 is a perspective view of an LED lighting device according to an embodiment of the present invention.
8 is an exploded perspective view of an LED lighting device according to an embodiment of the present invention.
9 is a diagram of driving an LED lighting device according to an embodiment of the present invention in conjunction with an audio source.
10 is a block diagram of an air conditioner according to an embodiment of the present invention.
11 is a block diagram showing a control unit of an air conditioner according to an embodiment of the present invention.
12 is an image of an indoor unit of an air conditioner according to an embodiment of the present invention.

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

While the invention allows for various modifications and variations, specific embodiments thereof are illustrated and illustrated in the drawings, which will be described in detail below. However, it is not intended to limit the invention to the particular forms disclosed, but rather the invention includes all modifications, equivalents, and substitutes consistent with the spirit of the invention as defined by the claims.

When an element, such as a layer, region, or substrate, is referred to as being “on” another component, it will be understood that it may be directly on another element or intermediate elements may be present therebetween. .

Although the terms first, second, etc. can be used to describe various elements, components, regions, layers and / or regions, these elements, components, regions, layers and / or regions It will be understood that it should not be limited by these terms.

1 is a schematic block diagram of an audio interlocking circuit of an LED lighting device according to an embodiment of the present invention.

Referring to FIG. 1, the LED lighting device includes a light emitting unit 500, a sound source receiving unit 100, an analog-to-digital conversion unit 200, a control unit 300, and a driving unit 400.

The light emitting unit 500 may include a plurality of LEDs. The LEDs of the light emitting unit 500 may be arranged in at least one line.

The sound source receiving unit 100 receives an audio sound source from the outside. The sound source receiving unit 100 may be a wireless module or a wired module. The wireless module may be a 2G / 3G modem or a WiFi module, and the wired module may be a USB or memory card (CF, SD).

For example, an audio sound source may be received using a Bluetooth module as a wireless module. Accordingly, an audio source can be transmitted from a Bluetooth-enabled mobile phone or similar wireless transmission device. Through this, the LED lighting device of the present invention can receive an audio sound source from various devices, and it is possible to produce an illumination pattern interworking with the audio sound source thus received.

The analog-to-digital converter 200 converts the audio sound source received from the sound source receiver 100 into a digital signal. The analog-to-digital converter 200 may be an analog-to-digital converter (A / D converter, ADC) that converts an analog signal to a digital signal or converts a digital signal to an analog signal.

For example, the analog-to-digital converter can be implemented with various resolutions such as 8bit, 10bit, or 1024bit.

Meanwhile, the audio sound source received from the sound source receiving unit 100 may be an analog signal. Therefore, the analog signal may be converted into a digital signal through the analog-to-digital converter 200 to be a source of a bit number detection algorithm.

The control unit 300 may detect the number of bits during a unit period by filtering the converted digital signal, and determine the implementation speed of the LED light emitting pattern by matching the detected number of bits with a predetermined number of frames.

The controller 300 may sample the digital signal converted by the analog-to-digital converter 200 in a certain time unit. For example, the sampling period may be 104 μSec. However, the present invention is not limited thereto, and various types of sampling cycles may be possible according to software implementation.

The control unit 300 may include a filtering unit (not shown) and a bit detection unit (not shown).

The filtering unit performs low-pass filtering (LPF) on the converted digital signal. For example, low-pass filtering may be performed by obtaining the average value A whenever the number of data data of the converted digital signal is X.

In this case, it is preferable that the filtering unit performs low-pass filtering of the converted digital signal at least three times. If the number of low-pass filtering is less than 3, there is a problem in that the accuracy of bit count detection is not high because the effect of simplifying data through filtering is not sufficient.

For example, the average value (A) is obtained whenever the number of data of the converted digital signal is X, and the average value (B) is obtained again for Y averaged values (A) thus obtained. In addition, three low-pass filtering may be performed by obtaining the average value C again for Z obtained average values B.

The filtered data can be temporarily stored in a buffer. In addition, the data obtained by repeating the sampling and filtering process for a period of time can be accumulated and stored in a buffer.

The bit detector may detect the number of bits by counting the number of peaks of the filtered digital signal.

On the other hand, the number of bits can be determined by the number of peaks that have occurred over a period of time. For example, the number of bits can be determined by the number of peaks generated in 2 seconds. For example, if the period stored in the buffer is 500 ms, the number of first bits is determined as the number that occurred during the first four buffer storage periods, and the number of the second second bits occurs during the first four buffer storage periods after the first bit number detection interval. It can be determined by the number.

Meanwhile, it is also possible to partially overlap and set the detection intervals of the number of bits. That is, the number of bits may be detected by a shift method in which the detection period of the first bit number and the detection period of the second bit number are overlapped by a certain period.

For example, the number of first bits may be determined by the number of peaks generated in a 0 second to 2 second interval, and the number of second bits may be determined by a number of peaks generated in a 0.5 second to 2.5 second interval. That is, as the detection section is moved every 0.5 seconds, the number of peaks generated in the section can be determined as the number of bits.

Therefore, by overlapping the detection period of each bit number, it is possible to more smoothly control the speed of the LED light emitting pattern that is realized in accordance with the beat of the audio source, and increase the sensitivity of the speed variable according to the variation of the beat to increase the sensitivity of the audio source and the audio source. The synchronization rate of the operation of implementing the lighting pattern can be further improved.

In addition, the control unit 300 determines the implementation speed of the LED light emitting pattern by matching the detected number of bits to a preset number of frames. The number of frames at this time corresponds to the implementation speed of the LED light emitting pattern. Therefore, as the number of frames increases, the implementation speed of the LED light emitting pattern increases.

On the other hand, even in one audio source, the time signature may be the same, but may be variable. Accordingly, the control unit 300 may also change the implementation speed of the LED light emitting pattern to correspond to the variation of the beat of the audio sound source through the correspondence of the detected number of bits and the frame. Thus, it is possible to enjoy the sensibility of an audio source at the same time not only with the audible sensation felt when listening to music, but also with the visual sensation felt through the embodied lighting pattern.

On the other hand, when the number of detected bits corresponds to a predetermined number of frames, as the number of detected bits increases, the number of frames corresponding thereto is preferably increased by placing a constant weight. In fact, the number of beats detected in music varies greatly among music genres. Therefore, considering this point, the more the number of beats is, the more natural the lighting pattern is to match the feeling of various music genres. You can produce an implementation.

For example, the preset number of frames to correspond to the detected number of bits may be as shown in Table 1 below.

Referring to Table 1, as the number of bits increases, the number of frames corresponding thereto increases as well as the weighted value of the increment. Accordingly, the speed of implementation of the LED light emitting pattern in the music of slow beat and the time of fast beat is not only proportional to the speed of the beat, but also considering the music genre, the implementation speed of the LED light emitting pattern can be varied.

Number of bits
(Beat) Number of frames
(Frame) 15 300 14 260 13 240 12 200 11 150 10 100 9 50 8 34 7 31 6 28 5 25 4 23 3 20 2 17 One 14

Meanwhile, the LED light emission pattern may include at least one of an LED light emission order, light emission number, and light emission shape.

As an example of the LED light emission order, a plurality of LEDs may be arranged in at least one line, and may be a pattern emitting light in order from bottom to top. Accordingly, the implementation speed of emitting light in this order may be slow in a section with a small number of bits, and the implementation speed of emitting light in this order may be fast in a section with a large number of bits.

Meanwhile, the LED lighting device may further include a memory unit 600 that stores information on the LED light emission pattern. The memory unit 600 may be provided in the LED lighting device, or may be detachably provided. That is, the memory unit 600 may be an internal or external memory. For example, the memory unit 600 may be an SD card.

The driving unit 400 drives the LED at a determined implementation speed. The driving unit 400 drives the LEDs of the light emitting unit, and a plurality of LEDs can be driven by one channel or by multiple channels. For example, the driving unit 400 may include a driving circuit capable of varying the current applied to each LED of the light emitting unit. For example, this current variation can be performed by PWM control.

Meanwhile, the LED lighting device may further include a sound source reproduction unit 700. Accordingly, the sound source reproduction unit 700 may be further included in the LED lighting device to reproduce the sound source together with the lighting direction. Of course, the sound source is reproduced from the external device, and the LED lighting device may implement an LED light emission pattern linked to the sound source.

The sound source reproducing unit 700 may include an amplifier (AMP) for amplifying the received audio sound source and a speaker 730 for reproducing the amplified audio sound source.

Such an amplifier may include a pre-amplifier (Pre-AMP, 710) and a power-amplifier (Power-AMP, 720).

The pre-amplifier 710 serves to selectively separate and adjust a signal to be transmitted to the power-amplifier 720, and the power-amplifier 720 receives the signal from the pre-amplifier 710. It can be made of electric power for operating the speaker 730.

Hereinafter, a control method of an LED lighting device according to an embodiment of the present invention will be described.

2 is a flowchart illustrating a method for controlling an LED lighting device according to an embodiment of the present invention.

Referring to FIG. 2, first, an audio sound source is received from the outside (S1). The audio source received from the outside may be an analog signal.

Then, the received audio sound source is converted to a digital signal (S2).

The converted digital signal is filtered to detect the number of bits during a unit period (S3). At this time, filtering the converted digital signal and detecting the number of bits during a unit period (S3) includes a filtering step of low-pass filtering the converted digital signal and counting the number of bits by counting the peak number of the filtered digital signal. It may include the step of detecting.

Then, the number of detected bits is corresponded to the preset number of frames (S4). At this time, as the number of detected bits increases, it is preferable to set the number of frames corresponding thereto to be increased by placing a constant weight.

Next, the implementation speed of the LED light emission pattern is determined in accordance with the number of frames (S5).

Thereafter, the LED is driven at the implementation speed of the determined LED light emitting pattern (S6). At this time, it is possible to drive the LED at the implementation speed of the LED pattern determined according to the beat of the audio source along with reproducing the received audio source.

Therefore, the operation of the LED lighting pattern more natural can be implemented by applying an algorithm for detecting the number of bits of an audio source to the LED lighting device.

In addition, by applying such an algorithm, it is possible to produce a more effective LED light emitting pattern in response to reproduction of various sound sources.

In addition, according to the variation of the beat of the audio source, the speed of implementation of the LED light emission pattern is also changed, so that it is possible to realize emotional lighting to better match the musical atmosphere.

Hereinafter, an audio interlocking bit detection algorithm of the LED lighting device will be specifically described as an example.

3 is a flowchart illustrating an audio interlocking bit detection algorithm of an LED lighting device according to an embodiment of the present invention.

Referring to FIG. 3, data obtained by converting an analog signal into a digital signal using an analog-to-digital converter (ADC) is sampled at regular intervals (S31). For example, it can be sampled by an ADC interrupt at a period of 104 μS.

Then, the average value (A) is obtained every time the number of data (Data) of the converted digital signal is 32, and the average value (B) is obtained again for the nine (A) values obtained from the 32 pieces. In addition, the average value C is obtained again for the five average values B thus obtained, and three low-pass filtering steps S32 are performed.

The filtered data (ADC value) is temporarily stored in a buffer (S33). At this time, the period for temporarily storing in the buffer can be set to 500 ms.

Accordingly, it is determined whether the time range of data temporarily stored in the buffer is 500 ms (S34), and the sampling (S31), filtering (S32), and ADC value storage (S33) steps until the time range temporarily stored in the buffer is 500 ms. Repeat.

If the time range of data temporarily stored in the buffer is 500 ms, the number of bits is detected from the internal buffer data (S35). The number of bits at this time can be detected by counting the number of peaks in the internal buffer data.

Then, the data stored in the buffer is deleted (S36) during the 500 ms period, and the sampling step (S31) is started again.

Therefore, the number of bits can be determined by summing the number of peaks detected during four 500 ms intervals corresponding to a total of 2 seconds.

Hereinafter, the process of obtaining the number of bits by the audio interlocking bit detection algorithm of the LED lighting device will be described in detail through a graph.

FIG. 4 is a waveform graph showing audio signals input to the A / D converter, FIG. 5 is a waveform graph showing signals input to the A / D converter as digital components, and FIG. 6 shows modeling waveforms and number of bits of the audio waveform It is a waveform graph.

Referring to FIG. 4, the waveform shown in FIG. 4 is a waveform of an analog signal input from an external audio source to the A / D converter. At this time, the X-axis of the graph of FIG. 4 is time, and the Y-axis is voltage. In addition, the ground level (GND Level) is displayed in the graph of FIG. 4.

Referring to FIG. 5, the waveform shown in FIG. 5 is a waveform obtained by converting the analog signal input in FIG. 4 into a digital signal. At this time, based on the ground level of FIG. 4, a negative component lower than the ground level was taken as an absolute value.

Referring to FIG. 6, the waveform shown in FIG. 6 is a simplified audio waveform through three low-pass filtering on the waveform of the digital signal converted by the A / D converter. In addition, peaks appearing in the simplified audio waveform are recognized as bits and detected.

7 is a perspective view of an LED lighting device according to an embodiment of the present invention, and FIG. 8 is an exploded perspective view of an LED lighting device according to an embodiment of the present invention.

7 and 8, the LED lighting device includes a main body 800, a light emitting part (not shown), a base member 900, a sound source receiving part (not shown), a sound source reproducing part 700, and an electric field part (not shown). ).

The main body 800 forms an outer appearance and includes a plurality of light transmitting parts 810. The main body 800 is a sculpture such as porcelain or sculpture, and may have an appearance for decorative purposes that can evoke a sense of beauty in itself.

The light transmitting portion 810 is a passage through which light from the light emitting portion 500 is transmitted, as described later. Therefore, the light transmitting unit 500 may be disposed in correspondence to the number of LEDs of the light emitting unit 500.

The light transmitting portion 810 may be a hole formed in the body 500 so that the emitted light from the light emitting portion 500 passes without loss. Alternatively, the light transmitting portion 810 may be formed to have a thickness thinner than the rest of the main body 500 region, and transmit light emitted from the light emitting portion 500. At this time, the main body 800 is formed of artificial marble, so it is easy to adjust the thickness and diffuse light to produce soft lighting.

The main body 800 may be divided into a front portion 800a in which a plurality of light transmitting portions 810 are provided, and a rear portion 800b detachably provided.

That is, the front portion 800a of the main body 800 may emit light from the light emitting portion 500 through a plurality of light transmitting portions 810 to express various LED light emission patterns. In addition, the rear portion 800b is detachably provided from the main body 800 to facilitate installation and repair of the light emitting portion 500 disposed inside the main body 800.

Further, by further adding a light emitting unit to the upper end of the main body 800, it is possible to emit light to the indoor ceiling to implement indoor lighting. In addition, the lower end of the main body is coupled to and supported by the base member 100, which will be described later.

Meanwhile, a plurality of light transmitting portions 810 may be provided on the entire surface of the main body 800. In this case, incision lines are provided along both sides of the main body 800, and a hinge is installed in one incision line to open the other incision line to open the inside of the main body 800.

The light emitting unit is provided inside the main body, and may include a plurality of LEDs. The LEDs of the light emitting units may be arranged in at least one line.

Further, the light emitting unit may include at least one circuit board on which a plurality of LEDs are mounted. The circuit board may be fixed to the inner surface of the body 800 corresponding to the light transmitting portion 810.

At this time, when the main body 500 has a curved surface, and a plurality of light transmitting parts 810 are provided on the curved surface, the LEDs of the light emitting parts are respectively provided on the plurality of light transmitting parts 810 along the curved surface inside the main body 500. It may include a plurality of circuit boards.

In addition, the light emitting unit may further include a plurality of flexible substrates electrically connecting the plurality of circuit boards. Here, the flexible substrate is a flexible printed circuit board (FPCB) that can be bent, and functions to supply power to each of a plurality of circuit boards or to transmit a control signal.

Therefore, the light emitting unit is divided into a plurality of circuit boards each of which is provided with LEDs, and by connecting each of the plurality of circuit boards to a flexible substrate, the region of the body 800 where the light transmitting unit 810 is provided can be formed into a curved surface, which makes it unsatisfactory. Improve it.

The base member 900 is located under the body 800. A frame 910 may be included inside the base member 900. The frame 910 partitions the interior space of the base member 900 to facilitate the installation of parts, and the upper surface may include a seating portion 920 to which the main body 500 is coupled and supported. The lower end of the main body 500 may be inserted into the seating portion 920 and fixed.

In addition, the base member 900 may be provided with a plurality of sound output holes 930 so that the sound information of the sound source reproducing unit 700, which will be described later, is easily output to the outside.

The sound source receiving unit is a wireless module or a wired module that receives an audio sound source from the outside, and may be provided on the back or inside of the main body 800 or the base member 900 in order to utilize a decorative aesthetic of the LED lighting device.

The sound source reproduction unit 700 is provided inside the base member 900. The sound source reproduction unit 700 may include an amplifier (not shown) for amplifying the received audio sound source and a speaker 730 for reproducing the amplified audio sound source.

At this time, the speaker 730 may be disposed corresponding to the sound output hole 930 provided to easily output sound information to the outside.

The electric unit (not shown) is disposed inside the base member, and the electric unit supplies power to the light emitting unit and may include a circuit unit electrically connected to the light emitting unit. Such a circuit unit may include a driving circuit including a control unit capable of varying the current applied to each LED of the light emitting unit. For example, this current variation can be performed by PWM control.

In addition, an A / D converter and a microcomputer may be provided in the electric unit. The A / D converter converts the audio source received by the sound source receiver into a digital signal, and the microcomputer filters the converted digital signal to detect the number of bits during a unit cycle, and then detects the number of detected bits to the preset number of frames. Correspondingly, the implementation speed of the LED light emitting pattern can be determined.

On the other hand, the LED lighting device may further include a transparent cover (not shown) provided to surround the front or part of the body. At this time, when a transparent cover is formed of a material that can diffuse light well, light emitted from the light emitting unit 500 may be uniformly emitted into the room as it enters and diffuses into the transparent cover. Accordingly, a softer lighting can be realized.

9 is a diagram of driving an LED lighting device according to an embodiment of the present invention in conjunction with an audio source. 9 (a) to 9 (f), various light emission patterns were displayed on the surface of the main body of the LED lighting device.

For example, the six emission patterns are described as one emission pattern, and the speed of implementation of the LED emission pattern will be described. In this case, the implementation speed of the LED light emitting pattern is determined based on Table 1 described above.

If the number of bits of the received audio source is 1, the number of frames is 14, and 6 light emission patterns will be repeatedly displayed in order at an implementation speed according to the number of frames.

Then, if the number of bits of the received audio source is 6, the number of frames is 28, and 6 light emission patterns will be repeatedly displayed in order at the implementation speed according to the number of frames.

Therefore, the implementation speed when the number of bits of the audio source is 6 will be twice the implementation speed when the number of bits of the audio source is 1.

According to the present invention, a specific shape or character can be displayed on the surface of the main body 800 by selectively emitting the LED of the light emitting unit. The driving information of the light emitting unit according to the shape and text may be received from a user's external device, such as a terminal, or may be retrieved from a memory (not shown) inside the LED lighting device.

In addition, the driving of the light emitting unit is implemented according to the LED light emitting pattern, thereby enabling dynamic lighting. The driving information of the LED light emitting pattern can also be retrieved from an external device or a memory inside the LED lighting device.

The LED light emission pattern may include at least one of the LED light emission order, the number of light emission, and the shape of light emission. As an example of the LED light emission order, a plurality of LEDs may be arranged in at least one line, and may be a pattern emitting light in order from bottom to top.

Furthermore, by changing the implementation speed of the LED light emitting pattern according to the sound information received by the sound source receiving unit, it is possible to implement audio-linked emotional lighting.

Hereinafter, an air conditioner equipped with the above-described LED lighting device capable of interlocking sound control will be described.

In general, the air conditioner repeats a refrigeration cycle in which refrigerant circulating inside compresses, condenses, expands, and evaporates.

That is, before flowing into the compressor, the refrigerant in the low-temperature and low-pressure gas state is compressed by the high-temperature and high-pressure gas state in the compressor, and then discharged from the condenser to change into a high-pressure liquid state, and the pressure drops while passing through the expansion valve. It is changed to a low-temperature, low-pressure liquid state. Then, the refrigerant that has passed through the expansion valve absorbs heat while passing through the evaporator, changes to a low-temperature, low-pressure gas state, and then enters the compressor and compresses, cooling or cooling the required location in the course of performing this series of cycles. Heating is done.

On the other hand, air conditioners, commonly referred to as air conditioners, are divided into a window type, which is mainly installed in a window with the indoor unit and the outdoor unit in one body, and a separate type in which the indoor unit and the outdoor unit are separately installed. In addition, a wall-mounted type that may be installed on a wall as an indoor decoration is also released in the indoor unit.

Hereinafter, an indoor and outdoor unit will be described as an example of a separate air conditioner installed separately.

10 is a block diagram of an air conditioner according to an embodiment of the present invention.

Referring to FIG. 10, the air conditioner includes an outdoor unit 1100a, an indoor unit 1100b, and a control unit 1300 (see FIG. 11) for controlling the outdoor unit.

The outdoor unit 1100a includes a compressor 1120 for compressing refrigerant and an outdoor heat exchanger 1130 for heat exchange with outdoor air. In addition, the outdoor unit 1100a includes an expansion valve 1140 for expanding the heat exchanged refrigerant, and an outdoor fan 1150 for controlling air flow inside the outdoor unit 1100a. In addition, the outdoor unit 1100a includes a four-way valve 1160 for switching the refrigerant flow path, and an accumulator 1170 for preventing the liquid refrigerant from flowing into the compressor 1120.

The indoor unit 1100b includes an indoor heat exchanger 1180 that exchanges heat with indoor air, and an indoor fan 1150 that controls air flow inside the indoor unit 1100b.

In addition, the indoor unit 1100b may further include a humidity sensor (not shown) for sensing indoor humidity, and a temperature sensor (not shown) for sensing indoor temperature.

However, the present invention is not limited thereto, and may be applied to a multi-air conditioner having a plurality of indoor units and outdoor units, a GHP air conditioner using a gas engine, and a water-cooled air conditioner using water.

11 is a block diagram showing a control unit of an air conditioner according to an embodiment of the present invention.

Referring to FIG. 11, the control unit 1300 controls overall components of the outdoor unit 1100a and the indoor unit 1100b.

Specifically, the control unit 1300 transmits a control signal for the refrigerant compression degree of the compressor 1120 of the outdoor unit 1100a or the opening degree of the expansion valve 1140 or the rotation speed of the outdoor fan 1150 or the indoor fan 1190. The air conditioner is operated by heating and cooling.

In addition, the control unit 1300 may determine the indoor temperature input from the temperature sensor 1200 and operate the air conditioner in a cold and warm manner to reach a temperature input by the user.

In addition, the control unit 1300 may determine the indoor humidity input from the humidity sensor 1210 to execute the dehumidification function. For example, the controller 1300 compares the indoor humidity input from the humidity sensor 1210 with the expected indoor humidity during comfortable driving to determine whether to perform a dehumidifying operation, and when dehumidifying operation is required, may execute a dehumidifying function.

12 is an image of an indoor unit of an air conditioner according to an embodiment of the present invention.

Referring to FIG. 12, the indoor unit 1100b of the air conditioner was equipped with an LED lighting device capable of sound interlocking control according to an embodiment of the present invention.

That is, in detail, the indoor unit 1100b of the air conditioner includes a housing 1110, a front panel 1111, air discharge units 1112, 1113, an air inlet unit (not shown), and a display unit 1114. It can contain.

An indoor heat exchanger and an indoor fan may be provided inside the housing 1110.

The air discharge units 1112 and 1113 may be located on at least one surface of both side surfaces of the housing 1110. In addition, the air discharge units 1112 and 1113 may be additionally positioned on the upper portion of the housing 1110. For example, the air discharge units 1112 and 1113 may be located on both side surfaces and upper portions of the housing 1110.

On the other hand, the air inlet may be located on the back of the housing 1110. However, in some cases, the position of the air inlet may be changed.

Therefore, the air in the room is introduced into the indoor unit 1100b through the air inlet, cooled or heated through a heat exchanger, and then air is discharged into the room again through the air discharge units 1112 and 1113.

The front panel 1111 is located on the front surface of the housing 1110.

The front panel 1111 may include a display unit 1114 that displays information related to the operation of the air conditioner, such as air volume, wind direction, and temperature.

Meanwhile, the display unit 1114 may further include a configuration of the LED lighting device described in FIG. 1. That is, the display unit 1114 may further include a light emitting unit, a sound source receiving unit, an analog-digital conversion unit, a control unit, and a driving unit. Since the configuration for this has already been described, a detailed description will be omitted.

Therefore, the display unit 1114 can perform not only the information display function of the original air conditioner, but also the display function of additional information.

That is, the control unit of the display unit 1114 may selectively drive a plurality of light sources to display various shapes or characters on the front panel surface.

In addition, the control unit of the display unit 1114 receives an audio sound source from the outside through the sound source receiving unit, detects the number of bits of the audio sound source, determines the driving speed of the LED light emitting pattern so as to correspond thereto, and drives the audio sound source on the front panel surface. It may indicate an interlocked LED light emission pattern.

In addition, the control unit of the display unit 1114 may selectively drive the light source to display life information such as weather or time on the front panel surface. For example, by using a communication module, driving information corresponding to life information such as weather or time is received from the user's terminal and transmitted to the control unit of the display unit 1114. The control unit of the display unit 1114 may selectively drive the LED to display weather or time by generating a control signal and transmitting it to the driving unit.

Therefore, by applying the LED lighting device of the present invention to the air conditioner, it is possible to improve the appearance by displaying various shapes on the surface of the front panel 1111.

Furthermore, by varying the speed of implementation of the LED light emitting pattern according to the sound information received by the sound source receiving unit and displaying it on the surface of the front panel 1111, it is possible to implement not only the original function of the air conditioner but also the function of emotional lighting. .

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100: sound source receiver 200: analog-to-digital converter
300: control unit 400: drive unit
500: light emitting unit 600: memory unit
700: sound source playback unit 710: Pre-AMP
720: Power-AMP 730: Speaker
800: main body 800a: front part
800b: rear portion 810: light transmitting portion
900: base member 910: frame
920: seating portion 930: sound output hole
1100a: outdoor unit 1100b: indoor unit
1110: housing 1111: front panel
1112, 1113: air discharge unit 1114: display unit
1120: compressor 1130: outdoor heat exchanger
1140: expansion valve 1150: outdoor fan
1160: four-way valve 1170: accumulator
1180: indoor heat exchanger 1190: indoor fan
1200: temperature sensor 1210: humidity sensor
1300: control

Claims (14)

A light emitting unit including a plurality of LEDs;
A sound source receiving unit that receives an audio sound source from the outside;
An analog-to-digital converter converting the audio source received from the sound source receiver into a digital signal;
Filtering the converted digital signal to detect the number of bits during a unit period corresponding to the beat of the audio source, and determining the implementation speed of the LED light emitting pattern by matching the detected number of bits to a predetermined number of frames, and As the number of detected bits increases, the number of frames corresponding thereto increases by placing a constant weight; And
It includes a driving unit for driving the LED at the determined implementation speed,
The LED light emission pattern includes at least one of the LED light emission order, the number of light emission and the shape of light emission,
The control unit detects the number of bits as the number of peaks generated for a certain period of time,
The number of bits includes a first number of bits and a second number of bits generated during different storage periods. According to claim 1,
The LED of the light emitting unit is arranged at least in line,
The LED lighting device, characterized in that the arranged LED is emitted at the determined implementation speed in accordance with the predetermined order of LED light emission. According to claim 1,
LED lighting device, characterized in that the implementation speed of the LED light emitting pattern is also variable to correspond to the variation of the beat of the audio source. According to claim 1,
The controller obtains an average value (A) each time the number of data of the converted digital signal is X, a filtering unit for low-pass filtering the converted digital signal, and counting the number of peaks of the filtered digital signal to bit LED lighting device comprising a bit detector for detecting the number. The method of claim 4,
The filtering unit LED lighting device characterized in that the low-pass filtering of the converted digital signal at least three times. delete According to claim 1,
LED lighting device further comprising a memory for storing the LED light-emitting pattern. According to claim 1,
LED lighting device further comprising a sound source reproduction unit for reproducing the audio source received from the sound source receiving unit. The method of claim 8,
The sound source reproduction unit LED lighting device including an amplifier for amplifying the received audio source and a speaker for reproducing the amplified audio source. According to claim 1,
The sound source receiving unit LED lighting device comprising a wireless module or a wired module. Receiving an audio source from the outside;
Converting the received audio source into a digital signal;
Filtering the converted digital signal to detect the number of peaks generated for a certain period of time in the converted digital signal to detect the number of bits during a unit period corresponding to the beat of the audio source;
Correlating the detected number of bits to a preset number of frames;
Determining the implementation speed of the LED light emitting pattern in response to the number of frames by increasing the number of frames corresponding to the number of frames as the detected number of bits increases; And
Driving the LED at the implementation speed of the determined LED light emitting pattern,
The LED light emission pattern includes at least one of the LED light emission order, the number of light emission and the shape of light emission,
The number of bits includes a first number of bits and a second number of bits generated during different storage periods. delete delete delete

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