KR20060080332A - System and method for controlling electric devices located in far distance by converting infrared light into radio frequency - Google Patents

Abstract

The present invention controls a home appliance using a remote controller, in particular, a remote home appliance that controls the home appliance in the remote control to convert the infrared signal into a high-frequency signal to control the home appliances in the remote control The present invention relates to a control system and method, and when a user applies a control command through an infrared signal to a nearby home appliance using an arbitrary remote controller, the user converts the signal into a high frequency signal and delivers it to a remote home appliance. The present invention provides a far-end home appliance control system and method for converting and controlling an infrared signal capable of controlling a far-range to a high frequency signal.

Infrared signal, high frequency signal, long distance, home appliance, wireless transmitter

Description

System and Method for Controlling Electric Devices Located in Far Distance by Converting Infrared Light into Radio Frequency}

1A and 1B illustrate a remote home appliance control system for converting and controlling an infrared signal into a high frequency signal according to the present invention.

2 is a view for explaining a communication protocol between the wireless image display device and the wireless transmitter shown in FIG.

3 is a view illustrating a remote home appliance control procedure for converting and controlling an infrared signal into a high frequency signal.

* Description of the symbols for the main parts of the drawings *

10: wireless television set

11: remote controller

12: key input unit

13: microprocessor

20: wireless transmission unit

30: home appliances

The present invention relates to the control of home appliances using a remote controller, and more particularly, by controlling a home appliance near by a remote controller to convert an infrared signal into a high frequency signal that can conveniently control the home appliances in the distance It relates to a remote home appliance control system and method for controlling.

In general, users of home appliances control home appliances using a remote controller called a remote controller. Such a remote controller is a control device that uses electromagnetic waves to perform convenient control operations such as turning on or off a power switch (or a power-on switch) and changing channels without touching a home appliance directly. Electromagnetic waves are a combination of light, radio waves, infrared rays, ultraviolet rays, and X-rays. Among them, only light (visible light) can be seen by our eyes.

A method of controlling a home appliance such as a television set using such a remote controller will be described below.

When a viewer selects a predetermined button provided in the remote controller and issues a predetermined control command, electromagnetic waves (for example, infrared rays, ultrasonic waves, and the like) are emitted from the light bulb of the light emitting unit located in front of the remote controller. In general, a remote control used to watch a television set in a general home uses infrared rays having a lower frequency than visible light.

What makes infrared light in a light emitting unit provided in front of a remote controller is a semiconductor called a "light emitting diode", and on the contrary, a light receiving unit receiving infrared light in a television set is provided with a light receiving diode.

Therefore, when the viewer presses the power-on button by using a remote controller, an infrared (wavelength 940 nm) beam having a predetermined natural frequency is emitted from the light emitting diode, and the light receiver of the television set receives the infrared beam and delivers the power to the microprocessor Controls to execute the function that provides. The infrared beam carries a coded signal, which carries a variety of coded signals consisting of a combination of zeros and ones, depending on the button pressed.

However, when controlling a home appliance using such a remote controller, the home appliance was controlled in a one-to-one control manner by using only a remote controller having a specification within a radius of the effective range of the remote controller.

For example, in order to control a television set in a living room, the user had to go to the living room in the living room and use a remote control for the television set to execute a desired control function within the effective radius of the television set.

If the living room can remotely control the home appliances using any remote controller in the living room, it will be very convenient for the user to control the home appliances, and the competitiveness of products that support these functions will be greatly improved. It is expected to be.

An object of the present invention is to solve the above-mentioned problems of the prior art, when a user applies a control command through an infrared signal to a home appliance near by using any remote controller, converts it into a high frequency signal The present invention provides a remote home appliance control system and method for controlling and converting an infrared signal capable of remote control desired by a user to a high frequency signal by transferring the home appliance to a remote home.

In order to achieve the above object, a remote home appliance control system for converting and controlling an infrared signal according to the present invention to a high frequency signal, one or more remote to output an infrared signal for the user to remotely control a certain home appliance A controller; A key input unit configured to receive infrared rays transmitted from the remote controller, and to detect and decode a format of an encoded signal included in an infrared signal; If it is determined that the control signal outputted from the key input unit is a control signal for the home appliance, and if it is determined that the control signal is for the user, it executes the control operation commanded by the user, and if it is determined that it is not the control signal for itself. A microprocessor releasing the received control signal in a wireless LAN method; A wireless transmitter for receiving the emitted radio control signal and re-emitting the original infrared signal; Characterized in that it comprises at least one or more home appliances for performing a control operation desired by the user according to the infrared signal re-emitted from the wireless transmitter.

In addition, a remote home appliance control method for converting and controlling an infrared signal to a high frequency signal according to the present invention, comprising: emitting an infrared signal for the user to apply a predetermined control command using any remote controller; Receiving, at the key input unit of any household appliance located within the effective distance of the infrared signal, finding and decoding a format of an encoded signal included in the infrared signal; Determining, by the microprocessor provided in the home appliance, whether the control signal output from the key input unit is a control signal for the home appliance; If it is determined that the control signal is for the user, the control command is executed by the user, and if it is determined that the control signal is not for the self-releasing the received control signal in a wireless LAN method; ; Receiving the radio control signal in the wireless transmission unit located at the effective distance of the emitted radio control signal, characterized in that consisting of the step of re-emission to the original infrared signal.

According to the characteristics of the present invention, even if the user is located at any location of the home or office by using a remote controller to control the nearby home appliances, it provides an advantage that can easily control the remote home appliances.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the remote home appliance control system for converting and controlling the infrared signal of the present invention to a high frequency signal.

1A and 1B illustrate a remote home appliance control system for converting and controlling an infrared signal into a high frequency signal according to the present invention.

1A and 1B, a remote home appliance control system for converting and controlling an infrared signal into a high frequency signal according to the present invention may include one or more remote devices for outputting an infrared signal to remotely control a predetermined home appliance. A controller 11; A key input unit 12 for receiving an infrared signal transmitted from the remote controller 11, and detecting and decoding a format of an encoded signal included in the infrared signal; It is determined whether the control signal output from the key input unit 12 is a control signal for the home appliance, and if it is determined that the control signal is for the user, it executes the control operation commanded by the user, A microprocessor 13 which, when determined, emits the received control signal in a wireless LAN method; A wireless transmitter 20 for receiving the emitted radio control signal and re-emitting the original infrared signal; At least one home appliance 30 for executing a control operation desired by the user according to the infrared signal re-emitted from the wireless transmitter 20 is configured.

Here, the remote controller 11 is manufactured by the manufacturer of each home appliance, it is preferable to use a unique remote controller of the electronic device to be controlled.

In addition, the key input unit 12 of the wireless household appliance is VISHAY-TSOP11xx. Like the TSOP21xx series, a function for recognizing various infrared code formats should be provided, and it is preferable to store the format of the coded signal included in the infrared signal as a database.

In addition, the home appliance 30 shown in FIGS. 1A and 1B may be selected from among a variety of home appliances capable of controlling television sets, video devices, and DVD power.

In addition, WLAN (WLAN) is an abbreviation of Wireless Local Area Network and refers to a highly flexible data communication system implemented by extending an existing wired LAN and using high frequency (RF) technology to wirelessly share data with minimal line connection. It is possible to receive and receive data from a user. With a simple facility, users can freely move and transmit data within a certain area. Currently, spread spectrum wireless LAN using ISM band is the most common in consideration of reach, performance, and security.

FIG. 2 is a diagram for explaining a communication protocol between the wireless video display device and the wireless transmitter shown in FIGS. 1A and 1B. The RTP / RTCP layers 31a and 31b shown in FIG. An abbreviation for time Transport Control Protocol, RTP / RTCP by itself does not provide quality assurance, reliability, or reverse order transfer prevention due to its nature of operation over UDP, but it is a necessary time information and information medium for almost all real-time applications. Because of its synchronization capability, almost all applications (VOD, AOD, Internet broadcasting, video conferencing, etc.) that use real-time information on the Internet have recently been spotlighted to operate over RTP / RTCP.

In addition, the UDP layers 32a and 32b are an abbreviation of the User Datagram Protocol, which is a communication protocol that provides only limited services when messages are exchanged between computers in a network using IP. UDP is an alternative to TCP and sometimes referred to as UDP / IP when used with IP. Like TCP, UDP uses IP to receive the actual data units called datagrams from one computer to another. Such a UDP layer is in the OSI communication model, and the UDP layers 32a and 32b belong to a transport layer which is four layers like the TCP layer.

The IP layers 33a and 33b are layers that support the IP protocol, and the driver layers 34a and 34b are interfaces below layer 2 of the OSI (Open System Interconnection), that is, the link layer or the hardware layer 35a, 35b) refers to programming that directly handles data transmission and reception by frame.

Hereinafter, a remote home appliance control procedure for converting and controlling an infrared signal into a high frequency signal according to the present invention will be described with reference to the accompanying drawings.

3 is a control flowchart illustrating a remote home appliance control procedure for converting and controlling an infrared signal into a high frequency signal.

1 to 3, a user presses a control button provided on an arbitrary remote controller 11 to emit an infrared signal for applying a predetermined control command (S31).

At this time, when there is a home appliance located within the effective distance of the infrared signal emitted from the remote controller 11, the key input unit 12 of the home appliance 10 receives the infrared signal emitted in the air (S32). Subsequently, the key input unit 12 detects the format of the encoded signal included in the received infrared signal, decodes it, and outputs the decoded signal (S33).

The microprocessor 13 receives the control signal output from the key input unit 12 and determines whether it is its control signal (S34).

As a result of the determination in step S34, when it is determined that the received control signal is a control signal for itself, the microprocessor 13 executes the control operation commanded by the user (S35).

However, if it is determined that the received control signal is not its own control signal, the microprocessor 13 emits the received control signal in a PCI (PERIPHERAL COMPONENT INTERCONNECT) wireless LAN scheme (S36).                     

At this time, the wireless transmitter 20 located in the effective distance of the emitted radio control signal receives the radio control signal and emits the original infrared signal again (S37).

Therefore, as shown in FIG. 2, the key input unit of the home appliance 30 in the vicinity receives the infrared signal emitted from the wireless transmitter 20 to execute a control operation desired by the user (S38).

According to the remote home appliance control system and method for converting and controlling the infrared signal according to the present invention described above, the user can control the control command through the infrared signal to the home appliance in the vicinity using any remote controller When applied, it converts it into a high frequency signal and delivers it to home appliances in the distance. Therefore, even when the user is at any location in the home or the office, a remote home appliance can be controlled to easily control a home appliance that is far away.

It will be understood that various changes and modifications can be made by those skilled in the art without departing from the technical spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (3)

At least one remote controller for outputting an infrared signal for the user to remotely control the predetermined household appliance; A key input unit for receiving an infrared signal transmitted from the remote controller, and detecting and decoding a format of an encoded signal included in the infrared signal; If it is determined that the control signal outputted from the key input unit is a control signal for the home appliance, and if it is determined that the control signal is for the user, it executes the control operation commanded by the user, and if it is determined that it is not the control signal for itself. A microprocessor releasing the received control signal in a wireless LAN method; And a wireless transmission unit configured to receive the emitted radio control signal and re-emit it as an original infrared signal. The remote home appliance control system of claim 1, wherein the key input unit converts the infrared signal into a high frequency signal and stores the encoded signal format included in the infrared signal as a database. Emitting an infrared signal for the user to apply a predetermined control command using any remote controller; Receiving, at the key input unit of any household appliance located within the effective distance of the infrared signal, finding and decoding a format of an encoded signal included in the infrared signal; Determining, by the microprocessor provided in the home appliance, whether the control signal output from the key input unit is a control signal for the home appliance; If it is determined that the control signal is for the user, the control command is executed by the user, and if it is determined that the control signal is not for the self-releasing the received control signal in a wireless LAN method; ; In the wireless transmission unit located at the effective distance of the emitted radio control signal, receiving the radio control signal and re-emitted to the original infrared signal, characterized in that the conversion of the infrared signal to a high frequency signal to control the home appliances How to control your device.

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