baber/WOPTO huggingface dataset:
Patent KR-20120100061-A (KR)
Title: Toothbrush
Inventor: LEE PAL HYUNG
IPC: A46B5/00
Filed: 2011-03-02
Abstract: PURPOSE: A toothbrush is provided to only replace a head unit when bristles of a brush are worn away or damaged and to enable a disabled person to brush his or her teeth. CONSTITUTION: A toothbrush comprises a handle unit(2), a brush(3), and a head unit(4). In the connector of the head unit and handle unit, a coupling piece(5) and a hanging groove(6) are formed to correspond to each other. One or more fixing rings(7) for preventing rotation are combined with the connector of the coupling piece. A hemi-spherical hanging protrusion(5b) is formed on both sides of the coupling piece. The junctions(8,9) of the head unit and handle unit are formed to be vertical to the longitudinal direction of the toothbrush.
Patent KR-20120101928-A (KR)
Title: Ignition device for pellet burner
Inventor: IN CHONG GI
IPC: F23L1/02
Filed: 2011-03-07
Abstract: PURPOSE: A device for igniting of a pellet burner is provided to reduce igniting time by directly contacting to a pallet and to prevent the ash of the burned pallet being accumulated in an igniting device even though the device is repeatedly operated. CONSTITUTION: A device for igniting of a pellet burner comprises a combusting case(110), an igniting unit(120), and a blowing unit(130). The combusting case supplies a pallet and discharges the ash of the burned pallet. The combusting case comprises a plurality of discharging holes penetrating the combusting case to discharge the ash of the burned pallet. The igniting unit is joined to the lower part of the combusting case and ignites the pallet by contacting to the pallet. The igniting unit comprises an igniting plate, a body case, a distributor, and a heat plug. The heat plug is installed to be parallel to the body case around the body case and ignites the pallet by heating when supplying power. The blowing unit joined to the lower part of the ignition unit, thereby supplying air.
Patent KR-20120106024-A (KR)
Title: 엘리베이터의 탈출장치
Inventor: YOON IL SHIK
IPC: B66B5/02
Filed: 2011-03-17
Abstract: 본 발명은 엘리베이터의 탈출장치에 관한 것으로, 구체적으로는 탈출문이 엘리베이터 천정에서 완전히 분리될 수 있는 구조의 탈출장치에 관한 것이다.
Patent KR-20120106297-A (KR)
Title: Apparatus for forming pattern on light guide panel
Inventor: HYUN YOUNG JIN
IPC: B29C59/00
Filed: 2011-03-18
Abstract: PURPOSE: A device for forming a light guide plate pattern is provided to secure the stable luminance of a light guide plate by forming a pattern accurately and the reproducibility of the pattern. CONSTITUTION: A device for forming a light guide plate pattern comprises a pattern forming unit(60). The pattern forming unit comprises a plasma generating apparatus(30) and a mask plate(50). The plasma generating apparatus forms an electrode part(20) by being installed to be separated from the upper portion of the light guide plate pattern. The mask plate is installed to be faced with the surface of the light guide plate. The mask plate comprises a plasma emitting hole(52). Dielectric substances are formed in the electrode part for forming dielectric barrier discharge.
Patent KR-20110111238-A (KR)
Inventor: MARUYAMA ISAO
IPC: F21W106/00
Filed: 2011-03-22
Abstract: 렌즈를 하우징에 흔들림 없이 회전 가능하게 부착하는 것이 중요하다.   
본 발명은 램프 하우징(2)과, 램프 렌즈(3)를 구비한다.  램프 렌즈(3)에는 램프 렌즈(3)의 회전축(O-O) 방향으로 탄성을 갖는 탄성편(12)이 설치되어 있다.  탄성편(12)에는 축부(15)가 설치되어 있다.  램프 하우징(2)에는 축 구멍(23)이 설치되어 있다.  축부(15)가 축 구멍(23)에 램프 렌즈(3)의 회전축(O-O) 주위로 회전 가능하게 삽입되어 있다.  이 결과, 본 발명은 램프 렌즈(3)를 램프 하우징(2)에 흔들림 없이 회전 가능하게 부착할 수 있다.
Patent KR-20120107771-A (KR)
Title: Preparation method of makgeolli using gaba rice
Inventor: HAN GI DONG
IPC: C12R1/865
Filed: 2011-03-22
Abstract: PURPOSE: A method for making makkoli using GABA rice is provided to maintain constant product quality and to improve preference. CONSTITUTION: A method for making makkoli using GABA rice comprises: a step of washing and soaking glutinous rice and GABA rice; a step of steaming the glutinous rice in a hard-boiled rice state; a step of steaming the GABA rice powder; a step of mixing the steamed glutinous rice, steamed GABA rice, nuruk, yeast, saccharification enzyme, makkoli starter, and water; a step of fermenting the mixture at 22-27 Deg. C. for 3-7 days; a step of maturing the mixture at 4-10 Deg. C. for 5-14 days; and a step of filtering the mixture. The GABA rice is rice containing a large amount of GABA amino acids. [Reference numerals] (AA) Rice washing; (BB) Glutinous rice, GABA rice washing and soaking for 10 hours; (CC) GABA rice distributing; (DD) Glutinous rice steaming; (EE) GABA rice steaming; (FF) Mixing; (GG) GABA rice 1kg, glutinous rice 1kg, Nuruk 150g, yeast 2g, malt 40g, water 2L, Makkoli starter 200ml; (HH) Main fermentation; (II) Fermenting at 22 °C for 4 days; (JJ) Post-fermentation; (KK) Maturing at 4°C for 10 days; (LL) Filtering
Patent KR-20120109692-A (KR)
Title: 액세서리 머리끈의 제조방법
Inventor: JUNG BYUNG HAE
IPC: A45D8/36
Filed: 2011-03-25
Abstract: 본 발명은 머리카락을 묶어 정리하는 액세서리 머리끈에 관한 것으로, 더욱 상세하게는 수축탄력성을 갖는 밴드와 결합구의 연결 작업 및 밴드 양단의 맞대음 연결 작업이 장식부착을 위한 결합구 사출공정을 통해 한 번의 공정에 이루어지도록 하는 액세서리 머리끈 제조방법에 관한 것이다. 
상기 본 발명 액세서리 머리끈 제조방법은, 수축탄력성을 갖는 밴드(10)와 상기 밴드(10)에 연결되면서 장식을 연결하는 결합구(20)를 구비한 액세서리 머리끈(10)을 제조함에 있어서, 
대면부에 상기 결합구 성형홈(52) 및 상기 결합구 성형홈(52)을 관통하는 밴드관통홈(54)을 형성하고 상기 결합구 성형홈(52)으로 수지를 주입하는 게이트(56)를 구비하여 형합되는 제1,제2금형을 구비하여 사출기에 설치하고, 
상기 제1,제2금형을 형개한 상태에서 상기 밴드(10)의 양단을 가 연결한 후 그 연결부(12)를 상기 결합구 성형홈(52)에 위치시킴과 동시에 밴드관통홈(54)으로 노출한 후 제1,제2금형을 형합하고 사출기를 작동하여 결합구 성형홈(52)으로 수지를 주입한 후 일정시간 냉각시킨 후 형개하여 상기 결합구(20)와 밴드(10)의 연결 및 밴드(10)의 양단 연결이 결합구(20)의 사출공정 시 동시에 이루어지도록 한 것을 특징으로 한다.
Patent KR-20110137715-A (KR)
Title: Vehicle crash simulation test apparatus and method, and control system for vehicle crash simulation test apparatus
Inventor: AIKI JUNICHI
IPC: G01N3/307
Filed: 2011-03-30
Abstract: PURPOSE: A vehicle crash simulation test apparatus and method, and a control system for the vehicle crash simulation test apparatus are provided to improve simulating performance by setting a push starting position of a piston based on data obtained from an actual vehicle crash test. CONSTITUTION: A vehicle crash simulation test apparatus comprises a sled(11), a hydraulic cylinder(22), an accumulator(23), a servo valve(24), and a push starting position setting unit. The sled, in which a test piece(15) is mounted, is supported and moved in the longitudinal direction. The hydraulic cylinder is formed with a piston(32) to be pushed toward the sled. The accumulator is connected to the rear chamber of the hydraulic cylinder. The servo valve is provided in a discharge port(45) formed in the front chamber of the hydraulic cylinder. The push starting position setting unit has a control device(26) for regulating the opening degree of the servo valve and sets the push starting position of the piston based on data obtained from an actual vehicle crash test.
Patent KR-20120111094-A (KR)
Title: Wearable mobile display device using flexible printed circuit board
Inventor: LEE CHANG WOO
IPC: G06F1/16
Filed: 2011-03-31
Abstract: PURPOSE: A wearable type mobile display device is provided to install a circuit unit and an operation unit inside a connection belt unit and to operate a display unit through the circuit unit and the operation unit. CONSTITUTION: A connection belt unit(120) is electrically connected to a display unit(110). The connection belt unit includes a FPCB(Flexible Printed Circuit Board)(122) and a housing(124). An operation unit(134) is installed inside the FPCB for operation of the display unit. The housing covers the FPCB. The connection belt unit is connected to a case(111). The connection belt unit fixes the case on the body of a user.
Patent KR-20120112918-A (KR)
Title: Continuous carbon nano-tube manufacturing apparatus and method
Inventor: CHANG KWANG HYUN
IPC: B01J19/24
Filed: 2011-04-04
Abstract: PURPOSE: A manufacturing apparatus of continuous carbon nano-tubes and a manufacturing method of the same are provided to reduce the consumption of introducing gas such as carbon sources, hydrogen, and nitrogen. CONSTITUTION: A manufacturing method of continuous carbon nano-tubes includes the following: carbon nano-tubes are generated by reacting a catalyst and reactive gas containing carbon sources, reduction gas, and inert gas; the generated carbon nano-tubes are separated from mixed gas; the separated mixed gas is filtered to remove a part or whole of the reduction gas; and the filtered mixed gas is re-circulated to the carbon nano-tube generating process. [Reference numerals] (AA) Re-circulation hydrogen gas(if necessary); (BB) Hydrogen storage; (CC) Exhaust gas treatment; (DD) Heat exchanger; (EE) Gas analyzer; (FF) Carbon source and nitrogen gas recirculation; (GG) Catalyst; (HH) Hopper; (II) Hydrogen PSA unit; (JJ) FBA or fixed bed reactor; (KK) Filter; (LL) Cyclone; (MM) CNT collector; (NN) Reaction gas supply; (OO) Pre-heater
Patent KR-20120115742-A (KR)
Title: Table lamp including not only main lamp, but also mood lamp which shows many light colors
Inventor: KIM JONG IL
IPC: F21S6/00
Filed: 2011-04-11
Abstract: PURPOSE: A table lamp having a mood light function in various colors is provided to successively or randomly emit various colors of light or continuously emit one color of light by installing an auxiliary lamp and a diffused reflection part on a body. CONSTITUTION: A table lamp(1) includes a lamp shade(10), a main lamp(20), a body(40) and an auxiliary lamp(50). The lamp shade is formed on the upper end of the main lamp to cover the main lamp. A socket(30) supplies electricity to the main lamp by electrically contacting the main lamp. The body supports the main lamp to separate from the floor. The body includes a supporting board(60). The auxiliary lamp emits light into the inside of the body. The light emitted from the auxiliary lamp is diffused to the outside through the main body.
Patent KR-20120116033-A (KR)
Title: 스탠드식 옷걸이
Inventor: LEE BYONG SUB
IPC: A47G25/06
Filed: 2011-04-12
Abstract: 본 발명은 스탠드식 옷걸이에 관한 것으로써 상세하게는 다수의 바지를 걸 수있는 수평대를 지주봉에 갖도록 하되 바지가 구겨지지 않도록 걸 수있고, 또 바지가 수평대로부터 이탈하지 않도록 하며, 또 바지 등을 건조할 수 있는 건조대로 이용할 수 있게 하며, 또 옷가계에서 옷을 진열할 수 있는 스탠드식 옷걸이에 관한 것이다. 
그 구성은 다음과 같다.  
지면에 위치되는 지지부(3)와 상기 지지부(3)상부에 수직으로 세워지는 지주봉(5)과 상기 지지봉(5) 상단에 옷을 걸어둘 수있는 옷걸이부(6)에 있어서, 
상기 옷걸이부(6)는 상기 지지봉(5)에 수직으로 끼울 수 있도록 수직으로 관통되는 끼움공(10)과, 상기 끼움공(10)의 외벽 일측에 수평으로 길게 수평대(11)가 설치되되 바지(B) 폭(D)에 해당하는 길이를 갖는 상기 수평대(11)와, 상기 수평대(11)의 길이방향에 바지의 폭을 걸어두면 상기 수평대(11)로부터 흘러내리지 않도록 바지를 압박하는 압박대(12)가 상기 수평대(11)에 형성됨을 특징으로 한다.
Patent KR-20120116819-A (KR)
Title: Apparatus of power transmission
Inventor: KIM DONG KYUN
IPC: F16H1/28
Filed: 2011-04-13
Abstract: PURPOSE: A power train system is provided to simplify structure and to improve durability, reliability, and assembling performance by eliminating a pin and a spring. CONSTITUTION: A first gear(200) and a second gear(300) are meshed in one side of a ring gear. The first gear and the second gear are separately arranged in the inner side of the ring gear. A clutch(400) moves toward the first gear or the second gear and is combined with one of the first gear and the second gear. A driving shaft(500) provides power to the clutch. The driving shaft forms a spiral groove. The clutch moves along the spiral groove of the driving shaft. The second gear comprises a second sun gear and a second planetary gear. The second planetary gear is meshed in the outer side of the second sun gear.
Patent KR-20110057093-A (KR)
Title: Method for manufacturing imitation stone panel
Inventor: CHA HEUI JANG
IPC: B28B1/087
Filed: 2011-04-21
Abstract: PURPOSE: A method for manufacturing an artificial stone plate is provided to prevent the dropping of an artificial stone plate by absorbing vibration while not forming grooves on the artificial stone plate. CONSTITUTION: A method for manufacturing an artificial stone plate(200) comprises the steps of: pouring raw materials consisting of cement, stone pieces, and water into a mold(100) formed of rubber or synthetic resin; applying vibration to the mold; curing the plate in a predetermined level; inserting a groove forming unit(300) to the inner distance of the plate through single or two or more kinds of through-holes to form grooves at a lateral side of the plate; completely curing the plate; and demolding the mold.
Patent KR-20120121951-A (KR)
Title: Vertical Structure Light Emitting Diode and Method for Manufacturing the Same
IPC: H01L33/36
Filed: 2011-04-28
Abstract: PURPOSE: A vertical light emitting diode and a manufacturing method thereof are provided to improve efficiency of a package process by forming a thickness of a street line to be less than that of a semiconductor structure region. CONSTITUTION: An n-type gallium nitride film(102) is formed on the lower side of an n-type electrode(101). An active layer(103) is formed on the lower side of the n-type gallium nitride film. A p-type gallium nitride film(104) is formed on the lower side of the active layer. A p-type electrode is formed on the lower side of the p-type gallium nitride film. A metal layer is formed on the lower side of the p-type electrode.
Patent KR-20120122011-A (KR)
Title: Massage chair having variable seat
IPC: A47C1/022
Filed: 2011-04-28
Abstract: PURPOSE: A variable seat type massage chair is provided to enable a user to take a massage in a comfortable state. CONSTITUTION: A variable seat type massage chair comprises a seat back part(110), a first chair part(120), and a second chair part(130). The seat back part supports and massages the back of a user. The first chair part supports the hips of the user. The second chair part is fixed on the floor and is combined with the seat back part. The second chair part supports and massages the thigh of the user and moves forward and backward on the first chair part.
Patent KR-20120122138-A (KR)
Title: Method for adaptably supporting various meetings and system therefor
IPC: G06F19/00
Filed: 2011-04-28
Abstract: PURPOSE: A method for supporting a conference subject adaptation conference and a system thereof are provided to efficiently perform the progress and preparation of a conference and make a report related to the conference by integrally managing computer report programs and files. CONSTITUTION: A database(400) stores conference-related data used by a conference subject. A conference management server manages the conference-related data. A conference subject registering unit(110) divides the conference subject according to a kind of the conference subject in order to register the same in a database. A conference data forming unit(120) forms data necessary for a conference in order of conference progress by corresponding to the registered conference subject. A conference selecting unit selects the conference to be executed through a terminal device connected to the database and the conference management server. [Reference numerals] (110) Conference subject registering unit; (120) Conference data forming unit; (130) Conference authority setting unit; (400) Database
Patent KR-20120122422-A (KR)
Title: Halftone screen producing apparatus, print controling apparatus, image forming apparatus, method for producing of halftone screen, method for controling print, method for image forming, and computer-readable recording medium
IPC: G06F3/12
Filed: 2011-04-29
Abstract: PURPOSE: A halftoning screen generating device and a method, a printing control terminal device and a method, an image forming device and a readable computer recording medium are provided to output an image which moire and low frequency noise are not generated in a low resolution environment, thereby increasing image quality of an output image. CONSTITUTION: A dot center arranging unit(320) arranges a dot center in a screen based on screen information. A voronoi calculating unit(330) calculates a voronoi value about each dot in the screen which the dot center is arranged. A filter calculating unit(340) calculates a filter value about each dot in the screen which the dot center is arranged. A dot value setting unit(350) set a dot value in the screen based on the voronoi value and the filter value. The screen information includes the number of the dot center and a constant determining a screen size, a frequency and a dot growth shape. [Reference numerals] (310) Input unit; (320) Dot center arranging unit; (331) Area dividing unit; (333) Triangle dividing unit; (335) Output unit; (340) Filter calculating unit; (350) Dot value setting unit; (360) Control unit
Patent KR-20120122611-A (KR)
Title: Cabinet of pen and eraser for writing board
IPC: B43L21/00
Filed: 2011-04-29
Abstract: PURPOSE: A pen for blackboard and a case of erasers are provided to attach pens and erasers to any place by using the case and an attachment tool. CONSTITUTION: A pen for blackboard and a case of erasers comprise a case(10) and an eraser(20). The case is attached to and detached from a blackboard(100) by an attachment tool(40). A pen(30) is attached to the eraser as attachable, and the eraser is combined with the case as attachable. The eraser is attached to the case as attachable. The attachment tool is either a magnetic material or an adsorption plate. The attaching and detaching of the case and eraser are completed through fastening protrusions(27) and fastening grooves(13). The fastening protrusions are formed at both sides of the eraser, and the fastening grooves are formed at both sides of the case. The magnetic material is equipped on a contact surface of the case and eraser.
Patent KR-20120124582-A (KR)
Title: Smart mcu relay for monitoring and controlling power consumption of duplex communication crane system and control service system and method thereof
IPC: G06Q50/00
Filed: 2011-05-04
Abstract: PURPOSE: A bidirectional communication-type smart MCU repeater for monitoring and controlling the power usage of crane facilities, a management service system using the same, and a service method thereof are provided to remotely perform management and inspection through a network by collecting and analyzing the power usage and sensor information of a crane. CONSTITUTION: A smart gauge(100) supplies power for use to a crane and a sensor installed on a hoist of the crane. The smart gauge turns on or off the power for use. A network device(200) collects information about the sensor of the hoist and information about automation facilities detecting a position of the hoist. A wireless communication device(300) communicates with a main server of a remote place. An MCU(Main Control Unit)(400) senses malfunction by storing and analyzing the collected information. [Reference numerals] (100) Smart gauge; (110) Main power source; (120) AVR; (130) Gauge; (140) Hoist; (200) Network device(receiving information from a sensor); (210) Automation facility; (300) Wireless communication device; (400) MCU(Main Control Unit); (AA) DC motor; (BB) Motor(photocoupling); (CC) Magnetic lead sensor; (DD) X-axis location detector; (EE) Y-axis location detector; (FF) Mobile station system; (GG) Camera; (HH) Load cell; (II) Inverter
Patent KR-20120125916-A (KR)
Title: Ripper equipment for excavator
IPC: E02F5/30
Filed: 2011-05-09
Abstract: PURPOSE: A ripper for an excavator is provided to precisely and rapidly perform a crush work by concentrating a hit position at one spot as a ripper blade is linearly moved. CONSTITUTION: A ripper(A) for an excavator comprises a housing(1), an actuating plate(2), a driving part(4), a ripper blade(3), and an upper limit unit. The housing has a coupler(10) and an internal space. The coupler is connected to a boom of an excavator. The actuating plate is inserted in the housing. The driving part makes the actuating plate perform a cam motion. The ripper blade is connected to the bottom of the actuating plate. The upper limit unit comprises a first upper damper(5), a second upper damper(6), and an upper link. The upper limit unit limits a forward motion when the actuating plate performs the cam motion.
Patent KR-20120128202-A (KR)
Title: Method and apparatus for operating function of portable terminal
IPC: G06F3/14
Filed: 2011-05-17
Abstract: PURPOSE: A function operation method and apparatus thereof are provided to improve user convenience by registering one or more items in the item gathering area of a home screen. CONSTITUTION: A control unit registers one or more items in the item area of the home screen according to user requests(201). When the one or more items are registered, the control unit confirms one or more attributes of the registered items(203). The control unit extracts one or more functions related to the items based on the attribute of the items(205). The control unit displays one or more function icons at one side of the item gathering area(207). [Reference numerals] (201) Control unit registers one or more items in the item area of the home screen according to user requests.; (203) When the one or more items are registered, the control unit confirms one or more attributes of the registered items; (205) Control unit extracts one or more functions related to the items based on the attribute of the items; (207) Control unit displays one or more function icons at one side of the item gathering area; (209) Selecting functional icons?; (211) Functions corresponding to the selected icons operate; (213) Selecting times?; (215) Functions corresponding to the selected items operate; (AA) Start; (BB) Finish
Patent KR-20120128785-A (KR)
Title: Dual gear train driving structure at input side of basin-type gear
IPC: F16H48/20
Filed: 2011-05-18
Abstract: PURPOSE: A duplex gear train driving structure is provided to drive a differential gear wheel set input rocker arm. CONSTITUTION: A differential gear wheel set assembly(300) comprises a gear, a friction gear, a pulley, a sprocket, or a CVT(Continuously Variable Transmission) wheel. A primary transmission gear(301) transfers rotational kinetic energy between umbrella planetary gear power transmission rocker arms. A secondary transmission gear(302) transfers the rotational kinetic energy between the umbrella planetary gear power transmission rocker arms. A differential gear wheel set(800) installs differential output shafts(311,312) which are outputted to outside. The differential gear wheel set comprises a shell of the differential gear wheel set assembly and a bearing.
Patent KR-20120134905-A (KR)
Title: Washing machine and controlling method for the same
Inventor: KWON SUN KU
IPC: G05D17/02
Filed: 2011-06-03
Abstract: PURPOSE: A washing machine and a control method thereof are provided to efficiently operate a motor and to prevent a noise generated in a deceleration process of the motor. CONSTITUTION: A motor(130) rotates a water current forming unit. A control unit(220) outputs a command torque current value controlling the motor. The control unit rotates the motor. The control unit reverses the phase of the command torque current value. The control unit increases the command torque current value to the fixed inclination. The control unit operates the motor. [Reference numerals] (210) Inverter; (221) Speed command output unit; (222) Brake control unit; (223) Speed control unit; (224) Current control unit; (225) Coordinate converting unit; (226) PWM calculating unit; (227) Current sensing unit; (228) Speed/location detecting unit
Patent KR-20120136722-A (KR)
Title: 백업 라우터의 라우팅 테이블 검증 장치 및 그 방법
Inventor: YANG CHANG GYU
IPC: H04L29/06
Filed: 2011-06-09
Abstract: 본 발명은 백업 라우터의 라우팅 테이블 검증 장치 및 그 방법에 관한 것으로, 이중화 라우팅 구조를 가지는 인터넷 환경에서 백업 라우터의 라우팅 테이블 내 라우팅 정보가 주 라우터의 라우팅 테이블 내 라우팅 정보와 동일한지를 검증함으로써, 주 라우터에 장애가 발생했을 때 절체된 백업 라우터가 정상적으로 인터넷 서비스를 제공할 수 있도록 하는, 백업 라우터의 라우팅 테이블 검증 장치 및 그 방법을 제공하고자 한다. 
이를 위하여, 본 발명은 주 라우터와 백업 라우터로 이루어진 인터넷 환경에서, 상기 주 라우터의 라우팅 테이블 내 라우팅 정보를 수집하는 라우팅 정보 수집수단; 상기 라우팅 정보 수집수단이 수집한 라우팅 정보에서 IP 클래스 대역별로 게이트웨이 IP 주소를 추출하는 IP 주소 추출수단; 상기 IP 주소 추출수단이 추출한 게이트웨이 IP 주소로 패킷을 전송하도록 상기 백업 라우터를 제어하고, 상기 백업 라우터의 응답 패킷 수신 여부에 따라 상기 백업 라우터의 라우팅 테이블의 정상 여부를 검증하는 제어수단; 및 상기 제어수단의 제어에 따라 상기 백업 라우터에 접속하는 백업 라우터 접속수단을 포함한다.