KR101884216B1 - Home network system and signal learning method thereof - Google Patents

Home network system and signal learning method thereof Download PDF

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KR101884216B1
KR101884216B1 KR1020150188371A KR20150188371A KR101884216B1 KR 101884216 B1 KR101884216 B1 KR 101884216B1 KR 1020150188371 A KR1020150188371 A KR 1020150188371A KR 20150188371 A KR20150188371 A KR 20150188371A KR 101884216 B1 KR101884216 B1 KR 101884216B1
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signal
infrared
learning
received
digital device
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KR1020150188371A
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KR20170078925A (en
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우인구
오준봉
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주식회사 디지엔스
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/14—Calling by using pulses
    • H04Q9/16—Calling by using pulses by predetermined number of pulses
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/04—Arrangements for synchronous operation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/40—Remote control systems using repeaters, converters, gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture

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  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A home network system and a signal learning method thereof are provided. A home network system and a signal learning method of the home network system and a signal learning method therefor are provided with a smart terminal in which a control application for controlling a plurality of digital devices provided in a room is installed and a control signal of a digital device to be controlled is transmitted, And a repeater for receiving the control signal and transmitting the received control signal to the corresponding digital device, wherein the smart terminal comprises: a storage unit for storing the control application and an infrared code database of a digital device to be controlled; And a signal learning unit that learns and adds or changes an infrared signal received through the repeater from a remote controller of a new digital device so as to control the operation of a new digital device using an unregistered format, And a signal checking unit for receiving the infrared signal of the remote control captured by the repeater and examining the similarity relationship between the gap length between the plurality of carrier pulses included in the received infrared signal and the length of each gap using the application It is possible to prevent errors such as a mistaken expression or a malfunction by optimizing a learning signal by extracting a repeated code by using a predetermined section in the process of learning an infrared signal of a new digital device.

Figure R1020150188371

Description

[0001] HOME NETWORK SYSTEM AND ITS SIGNAL LEARNING METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home network system and a signal learning method thereof, and more particularly, to a home network system and a signal learning method for controlling the operation of various devices using a smart terminal.

Recently, a home network technology for controlling the operation of digital devices provided indoors as well as indoors has been developed.

The home network function is expanded to control the operation of various digital devices such as air conditioners, air conditioners, fans, boilers, DVD players, and lighting as well as televisions and audios using a remote controller or an external smart phone provided in the room.

For example, the present applicant has filed a patent application relating to a home network system in a plurality of applications, such as Patent Document 1 and Patent Document 2 described below.

Patent Document 1 discloses an IR relay server provided with a server communication unit capable of communicating data with a smart phone using a wireless communication network such as a Wi-Fi (Wi-Fi), and an infrared transmission unit generating an infrared signal capable of controlling a digital device, And transmits the infrared image signal to the smartphone. The digital device driving signal transmitted from the smartphone is received, and an infrared signal suitable for the digital device driving signal is generated and transmitted. There is disclosed a configuration of a digital device control and a home automation system using a smart phone that enables a home automation capable of operating a plurality of digital devices provided in a room to be implemented with low cost and simple equipment.

Patent Document 2 discloses a digital device in which power on / off, channel and volume are controlled according to a signal received from a smart phone or a smart phone having an application of a remote control function, a Bluetooth communication with a smart phone or a Wi-Fi communication And a central control unit connected to the digital device through a plurality of infrared communication lines for remote control. The digital device can be controlled using a smart phone instead of the remote control, and an LED LED) can be transmitted and received in a wide range of infrared signals, enabling remote control even when the digital device to be controlled is located at a distance or in a blind spot in the room, and can control multiple digital devices at once A configuration of a digital device control system using a smart phone is described.

Korean Patent Publication No. 10-2013-0080278 (published on July 12, 2013) Korean Patent Publication No. 10-1037397 (issued on May 30, 2011) Korean Patent Publication No. 10-1253148 (issued on April 10, 2013)

However, in the conventional home network system including the patent documents 1 and 2, an operation command input through a smart phone is transmitted to a relay server or a repeater (hereinafter referred to as a " repeater "), And converts the operation of each digital device into an infrared code for controlling.

To this end, the repeater must include a configuration for storing data for converting an operation command into an infrared code and converting the data into an infrared code corresponding to the operation command.

Accordingly, in the home network system according to the related art, the configuration of the repeater is complicated, and a high-cost component is applied to perform an operation of converting an operation command into an infrared code.

In recent years, various digital devices have been used, and a home network system has been developed in which a learning function that can register and use an operation command of a digital device in which data for controlling the operation of the digital device is not registered is available.

For example, in the above-described Patent Document 3, when a relay home server installed in each home receives a driving signal of a digital device transmitted from a room or a room through a smart phone and transmits the signal to a repeater provided with an infrared ray generator, An infrared signal transmitted from a remote control device such as a remote control can be easily transmitted to an IR repeater such as a remote controller, And then transmitted to a smartphone, the pattern of the infrared signal captured by the smartphone is analyzed, the data contained in the infrared signal is compressed, and the data is transmitted to the IR repeater and stored. Thus, the infrared signal unique to the new digital device is transmitted to the smart Smart phone that can learn easily such as phone and IR repeater A configuration of a digital device control system capable of learning infrared signals is described.

However, Patent Document 3 has a problem in that, in the process of learning an infrared signal of a new digital device, misreading and misregistration due to user's operation error occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a home network system and a signal learning method for controlling the operation of a digital device by transmitting an infrared code corresponding to an operation command in a smart terminal to a relay station will be.

It is another object of the present invention to provide a home network system for learning a signal for controlling a new digital device, storing the signal in a smart terminal, and controlling a digital device using the stored signal, and a signal learning method thereof.

It is still another object of the present invention to provide a home network system and its signal learning method capable of extracting repeated codes using a predetermined section in signal learning to optimize a learning signal to prevent occurrence of errors.

In order to achieve the above object, a home network system according to the present invention includes a smart terminal installed with a control application for controlling a plurality of digital devices installed in a room, transmitting a control signal of a digital device to be controlled, And a repeater for receiving the control signal transmitted from the smart terminal and transmitting the received control signal to the corresponding digital device, wherein the smart terminal comprises: a memory for storing the infrared code database of the control application and the digital device to be controlled; And a signal learning unit which learns and adds or changes an infrared signal received through the repeater in a remote controller of a new digital device so as to control operation of a new digital apparatus using a format not stored in the storage unit, crane The signal receiving unit receives the infrared signal of the remote control captured by the repeater using the control application and checks a similarity relationship between the gap length between the plurality of carrier pulses included in the received infrared signal and the length of each gap .

According to another aspect of the present invention, there is provided a method of learning a signal of a home network system, the method comprising: (a) executing a control application in a smart terminal to receive an infrared signal of a digital device using a non- (b) examining a similarity relationship between the length of the gap between the first to fourth carrier pulses of the infrared signal and the length of each gap, (c) And (d) receiving, when the initial carrier reception is confirmed, a received recoord signal for a preset reception duration as a learning signal and adding or changing the received recoord signal.

As described above, according to the home network system and the signal learning method of the present invention, the smart terminal downloads and stores the infrared code of the digital device to be controlled from the format server, and responds to the operation command input through the smart terminal It is possible to retrieve the infrared code and send it to the repeater so that the operation of the digital device can be controlled.

Thus, according to the present invention, the control signal including the infrared code is generated by utilizing the resources of the smart terminal, and the manufacturing cost can be reduced by simplifying the structure and function of the repeater.

In addition, according to the present invention, since a smart terminal having a higher capacity than that of a repeater is used instead of a repeater having a limited capacity, the system can be expanded to infinity without capacity limitation and can be used for indoor or outdoor use Is obtained.

According to the present invention, an infrared code for controlling a corresponding digital device is obtained by receiving an infrared signal of a new digital device in which an infrared code is not registered through a repeater, extracting a repeated code using the received signal for a preset reception duration, Can be newly registered or changed.

Particularly, according to the present invention, the effect of being able to confirm the reception of the initial carrier pulse and start signal learning by examining the similarity relationship between the lengths of the gaps between the first four pulses of the received infrared signal.

Thus, according to the present invention, the signal processing process for removing the noise can be eliminated by using the received signal as the remote control signal regardless of whether the noise is included or not.

As a result, according to the present invention, it is possible to prevent an error such as a false recognition or malfunction by optimizing a learning signal by extracting a repeated code by using a predetermined section in the process of learning an infrared signal of a new digital device Is obtained.

1 is a block diagram of a home network system according to a preferred embodiment of the present invention;
2 illustrates an example of a remote control signal transmitted from a remote controller to a smart terminal through a repeater,
3 is a partially enlarged view of the remote control signal shown in FIG. 2,
4 is an exemplary diagram illustrating the principle of generating a remote control signal,
FIG. 5 and FIG. 6 are flowcharts illustrating steps of a signal learning method of a home network system according to a preferred embodiment of the present invention.

Hereinafter, a home network system and a signal learning method according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A smart terminal downloads and stores an infrared code of a digital device to be controlled from a format server, searches for an infrared code corresponding to an operation command input through a smart terminal, transmits the infrared code to a repeater, do.

The present invention receives an infrared signal of a new digital device with an infrared code unregistered through a repeater, extracts a repeated code from the received signal using a predetermined interval, and newly registers an infrared code for controlling the digital device .

1 is a block diagram of a home network system according to a preferred embodiment of the present invention.

As shown in FIG. 1, a home network system according to a preferred embodiment of the present invention includes a control application for controlling a plurality of digital devices 10 provided in a room, a control signal of a digital device 10 to be controlled, And a repeater 30 for receiving a control signal transmitted from the smart terminal 20 in a wireless communication manner and transmitting the received control signal to the corresponding digital device 10.

The home network system according to the preferred embodiment of the present invention stores infrared code information of a format corresponding to each digital device 10 so as to control the operation of the digital device 10 using various formats, And a format server 40 for providing infrared code information to the smart terminal 20. [

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The digital device 10 includes a home appliance 11 including a TV, a set-top box, an audio, an air conditioner, a humidifier, a lamp and a robot cleaner, a camera 12 capturing an indoor image, a temperature and humidity sensor, a motion sensor, A sensor unit 13 including various sensors, and a smart additional device 14 including a gas breaker, a smart plug, a light switch, a door lock, and the like.

The smart terminal 20 may be provided as a variety of information communication terminals having a communication function such as a smart phone, a tablet PC, a notebook computer, and a desktop computer.

However, in the present embodiment, a smart phone will be described for convenience of explanation.

The smart terminal 20 downloads and stores the infrared code database of the digital device 10 to be controlled from the format server 40 and searches the infrared code corresponding to the operation command input from the user to the relay device 30 And controls the operation of the corresponding digital device 10.

The smart terminal 20 includes a communication unit 21 for transmitting and receiving data through communication with the format server 40 and the repeater 30, a control application, and a storage unit for storing infrared code data of each digital device 10. [ An input unit 23 for receiving a user's operation command, a display unit 24 for displaying various menus and operation states, and a control unit 25 for controlling the operation of each device.

In addition, the smart terminal 20 includes a signal generating unit 26 for searching for an infrared code corresponding to an operation command input through the input unit 23 using the control application, and generating a control signal including the retrieved infrared code .

That is, in the prior art, the repeater stores data for converting an operation command into an infrared code, and when the operation command input from the user is received in the smart terminal, the infrared code is searched by the infrared code corresponding to the operation command and includes the infrared code And transmitted the infrared signal to the corresponding digital device.

On the other hand, the present invention generates a control signal including an infrared code corresponding to an operation command of the digital device 10 in the smart terminal 20, and transmits the control signal to the relay device 30. The relay device 30 transmits the received control signal To the digital device 10 as it is.

As described above, according to the present invention, the control signal including the infrared code is generated by utilizing the resources of the smart terminal, so that the manufacturing cost can be reduced by simplifying the structure and function of the repeater.

In particular, the present invention uses a high-end smart terminal in comparison with a repeater instead of a repeater having a limited capacity, so that the system can be expanded to infinity without capacity limitation and can be used indoors as well as outdoors.

The communication unit 21 may include a communication module of each communication mode so that the smart terminal 20 can transmit and receive data through various wireless communication methods such as Wi-Fi, Bluetooth, and infrared communication method with the repeater 30 when the smart terminal 20 is indoors have.

The communication unit 21 further includes a communication module for communicating with the relay server 30 and the format server 40 through the mobile communication network such as 3G and 4G in the case where the smart terminal 20 is outdoors .

The control application may be provided as a dedicated application for controlling the operation of the digital device 10 having various formats using the smart terminal 20. [

That is, the control application has a function of communicating with the format server 40 and the repeater 30, registering, changing, deleting, setting the operation mode of each digital device 10, retrieving the infrared code of each digital device 10, , An operation state and a history of each digital device 10, and the like.

Therefore, the smart terminal 20 downloads the infrared code data of various digital devices 10 using infrared codes of different formats released by domestic and foreign home appliances from the format server 40 and stores them in the storage unit 40 .

In the case of a new digital device 10 using a format not stored in the storage unit 22, the smart terminal 20 receives a remote control signal transmitted from the repeater 30 and transmits the infrared signal of the new digital device 10 You can add or change the code.

To this end, the smart terminal 20 may further include a signal learning unit 27 for adding and changing an infrared signal received by the remote controller 60 to control the operation of the new digital device 10. [

The signal learning unit 27 receives the infrared signal of the remote control 60 captured by the repeater 30 using the control application and calculates the difference between the gap length between the carrier pulses included in the received infrared signal and the length of each gap A pattern analyzer 52 for analyzing and compressing the pattern of the received infrared signal, and a signal storage unit 52 for storing the received infrared code together with the control command of the infrared signal, (Not shown).

For example, FIG. 2 is an exemplary view of a remote control signal transmitted from a remote controller to a smart terminal through a repeater, and FIG. 3 is an enlarged view of a high section of the remote control signal shown in FIG.

As shown in FIGS. 2 and 3, the remote control signal includes a 'high' period including a carrier pulse and a 'low' period in which the carrier pulse is not included.

For example, the carrier pulse may include 2 to 3 bytes of device definition, individual button information, and 32-bit or 48-bit infrared code information.

The signal checking unit 51 checks whether the first gap Gap-1 between the first carrier pulse and the second carrier pulse in the received infrared signal shown in FIG. 3 is out of a wavelength distance of the received infrared signal.

Then, the signal checker 51 compares the length of the first gap Gap-1 to determine whether the second gap Gap-2 between the second carrier pulse and the third carrier pulse is out of the wavelength distance, Check the relationship.

Subsequently, the signal checker 51 compares the length of the second gap (Gap-2) with whether the third gap (Gap-3) between the third carrier pulse and the fourth carrier pulse deviates from the above wavelength distance Check the similarity relationship.

If the length of at least one of the first to third gaps (Gap-1 to Gap3) is out of the above-described wavelength range, or if the similarity is less than a preset ratio, Stops the learning process.

On the other hand, if the lengths of the first to third gaps are all within the above-described wavelength range and the set ratio is above the similarity, the signal checking unit 51 sets the fourth carrier pulse as the first carrier pulse .

When the signal analyzer 51 confirms reception of the first carrier pulse through the above process, the pattern analyzer 52 confirms the definition of the device and the individual button information from the received infrared signal, and then transmits the infrared signal to the remote control signal Process.

In detail, when the reception of the first carrier pulse is confirmed, the pattern analyzer 52 receives the received remote control signal as a learning signal only for a preset reception duration, for example, about 600 ms.

The pattern analyzer 52 detects the length of the carrier pulse, receives a predetermined number, for example, 100, of the carrier pulses according to the detected length of the carrier pulse, and outputs only one optimum value to the carrier frequency Buffer (carrier_freq_buffer []).

The pattern analyzer 52 temporarily stores the lengths of the high and low intervals in a learning buffer (learn_buffer []) provided in the signal storage unit 53 continuously during the reception duration.

Meanwhile, when learning is completed through the above process, the smart terminal 20 can generate a remote control signal according to FIG.

For example, FIG. 4 is an exemplary diagram illustrating the principle of generating a remote control signal.

The signal generator 26 receives a carrier frequency buffer (carrier_fdeq_buffer []) of 1 byte, receives a 600 ms learning buffer (learn_buffer []), analyzes the learning buffer, high_low_ type table []).

Then, the signal generator 26 generates a high-low offset buffer (high_low_offset_buffer []) for searching the learning buffer for the high-low class table.

4, the signal generating unit 26 generates a signal corresponding to the information stored in the high-low offset buffer, such as a remote control signal having a 'high' period and a 'low' Lt; / RTI >

The control unit 25 may store the data stored in the carrier frequency buffer and the learning buffer in the storage unit 22 and may control the operation of the communication unit 21 to transmit the data to the format server 40 for additional registration.

As described above, according to the present invention, an infrared signal of a new digital device can be additionally registered in a smart terminal by transmitting the infrared signal of a new digital device to a smart terminal through a repeater, thereby controlling the operation of the digital device.

Particularly, the present invention can check the reception of the first carrier pulse by checking the similarity relationship between the lengths of the gaps between the first four pulses of the received infrared signal, and start signal learning.

Accordingly, the present invention can eliminate the signal processing for removing noise by using the received signal as a remote control signal regardless of whether the noise is included or not.

In addition, the present invention can optimize the infrared code to be learned by extracting repeated codes using a predetermined section of the received infrared signal.

Thus, the present invention can prevent a misunderstanding of an operation command due to the repetition of an infrared code or a malfunction that occurs when the operation of a digital device is controlled, when the user presses the same button of the remote controller for a long time.

The repeater 30 is communicably connected to a communication device (not shown) provided in the room and communicates with the outdoor smart terminal 20 through the communication device or is connected to the smart terminal 20 Direct communication can be performed.

For this, the repeater 30 may include a communication module 31 that performs communication using various wireless communication methods.

That is, the communication module 31 may be connected to the smart unit 20 in a variety of ways such as a communication unit for performing communication using Wi-Fi, Bluetooth, etc., and a digital device 10 and an infrared communication, a Zigbee, And a communication unit that performs communication.

Therefore, the communication module 31 transmits the video and audio information photographed by the camera 12 and the sensed information sensed by each sensor among the digital devices to the smart terminal 20, and transmits the infrared code received from the smart terminal 20 And transmits the control signal to the digital device 10 so that the operation of the digital device 20 can be controlled.

When learning the infrared signal of the new digital device 10, the communication module 31 receives the remote control signal from the remote control 60, captures the received remote control signal, and transmits it to the smart terminal 20 as it is.

When receiving a control signal for controlling the new digital device 10 from the smart terminal 20, the communication module 31 transmits the infrared code included in the control signal to the digital device 10, Can be controlled.

In addition, the repeater 30 may control the operation of the LED module (not shown) based on the operation state, the power usage state, and the mode setting state according to the detection information of each of the LED module 32 and the sensor unit 12, 32, a communication module 31, and a control module 33 for controlling the operation of each digital device.

For example, when an open operation is detected in the door sensor, the control module 33 operates the camera 12 to face the front door according to a preset operation scenario, and displays the video and audio information photographed by the camera 12 And control the operation of the communication module 31 so as to transmit it to the smart terminal 20.

As described above, according to the present invention, in a smart terminal, an infrared code of a digital device to be controlled is downloaded and stored from a format server, and an infrared code corresponding to an operation command input through the smart terminal is retrieved and transmitted to a repeater, The operation can be controlled.

The present invention is characterized by receiving an infrared signal of a new digital device in which an infrared code is not registered through a repeater, extracting a repeated code using the received signal for a preset reception duration, You can register or change.

Next, a signal learning method of a home network system according to a preferred embodiment of the present invention will be described in detail with reference to FIG. 5 and FIG.

5 is a flowchart illustrating steps of a method of controlling a digital device using a stored infrared code and a method of storing an infrared code in a signal learning method of a home network system according to a preferred embodiment of the present invention.

5, the smart terminal 20 executes a control application stored in the storage unit 22, receives user information such as an ID, e-mail and password registered at the time of membership registration from the user, To the server (40).

Then, the format server 40 can authenticate the user using the received user information.

When the authentication is completed, the smart terminal 20 downloads the infrared code database for the digital devices 10 of various formats stored in the format server 40, and stores the downloaded infrared code database in the storage unit 22 (S12).

The input unit 23 receives an operation command from the user and the signal generation unit 26 receives the operation command from the storage unit 22 in a state in which the smart terminal 20 and the repeater 30 are communicably connected in a wireless communication manner, And generates a control signal including the retrieved infrared code.

Then, the communication unit 21 transmits the control signal generated in the signal generation unit 26 to the repeater 30, and the repeater 30 transmits the control signal including the infrared code received through the communication module 31 to the indoor unit To the provided digital device 10 and controls the operation of the corresponding digital device 10 (S16).
In step S18, the control unit 25 checks whether or not a stop command for stopping the control application is inputted, and controls to repeat steps S14 to S18 until the stop command is input.
If the stop command is input in step S18, the control unit 25 stops the control application and terminates.

A method of learning a remote control signal of a new digital device will be described in detail with reference to FIG.
FIG. 6 is a flowchart illustrating a method of learning a remote control signal of a new digital device among the signal learning methods of a home network system according to a preferred embodiment of the present invention.
The relay device 30 receives the remote control signal from the remote controller 60 of the new digital device 10 in a state where the relay device 30 is communicably connected to the smart terminal 20 Captures the received remote control signal, and transmits it to the smart terminal 20 as it is.
The control unit 25 of the smart terminal 20 checks whether the received remote control signal is a remote control signal of the digital device 10 currently stored in the storage unit 22. If the remote control signal of the new digital device 10 , It controls to learn the corresponding remote control signal.

Thus, the signal learning unit 27 executes the control application and receives the received infrared signal for a preset reception duration (S22).

In step S24, the signal checking unit 51 of the signal learning unit 27 calculates a first gap (Gap-1) between the first carrier pulse and the second carrier pulse of the received infrared signal by a wavelength distance of the received infrared signal Inspect if it is off.

Then, the signal checker 51 compares the length of the first gap Gap-1 to determine whether the second gap Gap-2 between the second carrier pulse and the third carrier pulse is out of the wavelength distance, Check the relationship.

Subsequently, the signal checker 51 compares the length of the second gap (Gap-2) with whether the third gap (Gap-3) between the third carrier pulse and the fourth carrier pulse deviates from the above wavelength distance Check the similarity relationship.

In step S26, the signal checking unit 51 checks whether the first to third gaps (Gap-1 to Gap3) are all within one wavelength of the received infrared signal and has similarity with the set ratio or more.

If at least one of the first to third gaps (Gap-1 to Gap3) is out of the above-described wavelength range or has similarity below the set ratio as a result of the checking in step S26, the signal checking unit 51 The learning process is stopped (S28).

On the other hand, if it is determined in step S26 that all the first to third gaps (Gap-1 to Gap-3) are within the above-described wavelength range and have a similarity beyond a preset ratio, the signal checking unit 51 determines that the fourth carrier pulse To the first carrier (S30).

Then, the pattern analyzer 52 analyzes the received infrared signal and extracts and stores the repeated infrared code (S32).

At this time, the pattern analyzer 52 confirms the definition of the device and the individual button information in the received infrared signal, and then, when the reception of the first carrier pulse is confirmed, the pattern analyzer 52 receives the received remote control signal As a learning signal. The pattern analyzer 52 receives a predetermined number of carrier pulses, for example, 100, temporarily stores only one optimal value in the carrier frequency buffer, and stores the lengths of the high and low intervals in succession Temporarily store in the learning buffer.

The control unit 25 stores the data stored in the carrier frequency buffer and the learning buffer in the storage unit 22 and transmits the stored data through the communication unit 21 to the format server 40 for new registration.

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Through the above process, the present invention can search for an infrared code corresponding to a user's operation command in a smart terminal, and transmit a control signal including the retrieved infrared code to a repeater to control the operation of the digital device .

Further, the present invention can transmit a remote control signal to a smart terminal using a learning function, extract a repeated infrared code from a remote control signal received during a preset reception duration in the smart terminal, and newly register the infrared code.

In addition, the present invention can check the reception of the initial carrier pulse by checking the similarity relationship between the lengths of the gaps between the first four pulses of the received infrared signal, and start signal learning.

Accordingly, the present invention uses a received signal as a remote control signal regardless of whether or not the noise is included, thereby eliminating a complex signal processing process for removing noise.

In addition, the present invention can optimize the infrared code to be learned by extracting repeated codes using a predetermined section of the received infrared signal.

Although the invention made by the present inventors has been described concretely with reference to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

In the above embodiment, the smart terminal searches for the infrared code corresponding to the operation command, and transmits the control signal including the retrieved infrared code to the repeater to control the operation of the digital device. However, the present invention is not limited thereto It is not.

That is, according to the present invention, a separate home server is provided in a room, and when a smart terminal transmits a control signal including an operation command to a home server, an infrared signal including an infrared code corresponding to an operation command is transmitted to a home server To control the operation of the digital device.

The present invention relates to a smart terminal that searches for an infrared code corresponding to a user's operation command in a smart terminal and transmits a control signal including a searched infrared code to a repeater to control operation of the digital device and learns a remote control signal of a new digital device Home network system and its signal learning method.

10: Digital device 11: Home appliance
12: camera 13: sensor unit
14: additional device 20: smart terminal
21: communication unit 22:
23: input unit 24:
25: control unit 26:
27: signal learning unit 30: repeater
31: communication module 32: LED module
33: control module 40: format server
51: signal checking unit 52: pattern analyzing unit
53: Signal storage unit 60: Remote control

Claims (10)

A smart terminal provided with a control application for controlling a plurality of digital devices provided in the room and transmitting a control signal of a digital device to be controlled;
And a repeater for receiving a control signal transmitted from the smart terminal in a wireless communication manner and transmitting the received control signal to the corresponding digital device,
The smart terminal comprises: a storage unit for storing the control application and an infrared code database of a digital device to be controlled;
And a signal learning unit that learns and adds or changes an infrared signal received through the repeater from a remote controller of a new digital device so as to control operation of a new digital device using a format not stored in the storage unit,
The signal learning unit receives the infrared signal of the remote control captured by the repeater using the control application and checks a similarity relation between the gap length between the plurality of carrier pulses included in the received infrared signal and the length of each gap And a signal checking unit,
The signal checking unit checks whether the length of each gap between the first to fourth carrier pulses in the received infrared signal is equal to or greater than a predetermined ratio between whether the wavelength is one wavelength distance of the received infrared signal and the length of each gap ,
And the fourth carrier pulse is received as an initial carrier pulse based on the inspection result. delete 2. The apparatus of claim 1, wherein the signal learning unit
A pattern analyzer for analyzing, compressing and storing the pattern of the received infrared signal,
Further comprising a signal storage unit for storing the received infrared code as it is together with a control command of the infrared signal. The method of claim 3,
Wherein the pattern analyzer receives a remote control signal received only for a preset reception duration as a learning signal when the reception of the first carrier pulse is confirmed,
The carrier pulse is received by a predetermined number of times, one of the received carrier pulses is selected and temporarily stored in a carrier frequency buffer provided in the signal storage unit,
And temporarily stores the lengths of a high section and a low section of the infrared signal in a learning buffer provided in the signal storage section during the reception duration. The method according to claim 1,
The smart terminal further comprises a signal generator for searching for an infrared code corresponding to a user's operation command using the control application and generating a control signal including the retrieved infrared code,
The signal generator receives a carrier frequency buffer and a learning buffer for a predetermined amount of time, analyzes the learning buffer to generate a high-low class table, and generates the high-low offset buffer corresponding to the high- And generates a remote control signal having a high section and a low section including a carrier pulse by associating information stored in the high-low offset buffer with the high-low type table. A signal learning method for a home network system according to any one of claims 1 and 5,
(a) executing a control application in a smart terminal to receive an infrared signal of a digital device using a non-stored format,
(b) examining a similarity relationship between the length of the gap between the first to fourth carrier pulses of the infrared signal and the length of each gap,
(c) receiving the fourth carrier as an initial carrier based on the result of the check; and
(d) receiving, when a reception of the first carrier is confirmed, a received recoord signal for a preset reception duration as a learning signal, and adding or changing the received recoord signal. 7. The method of claim 6, wherein step (b)
(b1) checking whether the first to third gap between the first to fourth carrier pulses is within a wavelength distance of the received infrared signal
(b2) checking whether the lengths of the first to third gaps have a similarity with each other by a preset ratio or more. 8. The method of claim 7, wherein step (c)
(c1) stopping the learning process if at least one of the first to third gaps is out of the wavelength distance or has similarity below the set ratio as a result of the checking in the step (b)
(c2) when the first to third gaps are all within the above-described wavelength distance and have a similarity beyond the set ratio, receiving the fourth carrier as an initial carrier Signal learning method. The method according to claim 6,
(e) transmitting the infrared code of the remote control signal additionally registered in the smart terminal to the format server and newly registering the infrared code;
(f) searching for an infrared code corresponding to a user's operation command in the signal generating unit and generating a control signal including the retrieved infrared code,
Wherein the step (f) includes the steps of: (f1) receiving a learning buffer of a predetermined amount of time from the carrier frequency buffer and analyzing the learning buffer to generate a high-
(f2) generating the learning buffer as a high-low offset buffer corresponding to the high-low class table and
(f3) generating a remote control signal having a high section and a low section including a carrier pulse by associating information stored in the high-low offset buffer with the high-low class table, Learning method. The method according to claim 6,
Wherein in the step (a), the repeater captures an infrared signal including noise from the remote controller as it is, and transmits the infrared signal to the smart terminal.
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