摘要:
A detecting apparatus and method of a robot cleaner is disclosed. The apparatus includes a detecting unit provided with a transmitting unit for sending a signal to detect the floor and a receiving unit for receiving a signal sent from the transmitting unit to be reflected on the floors an optic angle adjusting unit disposed at least one of the transmitting unit and the receiving unit and configured to adjust optic angles of the signals, and a light shielding unit configured to partially shield a signal sent through the optic angle adjusting unit in order to reduce a deviation of each signal of the transmitting unit and the receiving unit. Accordingly, a measurement deviation with respect to color and feel of the floor can be reduced. Also, an amount of light received at the receiving unit can be obtained as much as required, which allows an accurate detection of the detecting apparatus. In addition, even if there are both drop-off and bump on the floor, the robot cleaner can smoothly operate.
摘要:
A system and method for handing off from a first network to a second network. A determination may be made as to whether an accessible base station of the second network is located in the vicinity of a user equipment based on information on a current location of the user equipment in the first network. An activation message may be generated with a first telephone number as a caller number when an accessible base station of the second network is located in the vicinity of the user equipment based on the determination result. The activation message indicates an initiation of a search for an accessible base station of the second network, and an accessible base station of the second network may be searched for when the activation message with the first telephone number is received. A handoff from the first network to the second network may then be executed when the accessible base station of the second network is located.
摘要:
A system and method for handing off from a first network to a second network. A determination may be made as to whether an accessible base station of the second network is located in the vicinity of a user equipment based on information on a current location of the user equipment in the first network. An activation call may be generated with a first telephone number as a caller number when an accessible base station of the second network is located in the vicinity of the user equipment based on the determination result. The activation call indicates an initiation of a search for an accessible base station of the second network, and an accessible base station of the second network may be searched for when the activation call with the first telephone number is received. A handoff from the first network to the second network may then be executed when the accessible base station of the second network is located.
摘要:
A method for processing handover to provide IP mobility for mobile user equipment, a system thereof, and a Mobile IP (MIP) client device using the same method. The method processing handover at a home agent in a heterogeneous protocol mixed network includes: at a home agent, creating a Proxy Mobile IP (PMIP) tunnel when user equipment accesses a PMIP network; at the home agent, creating a Client Mobile IP (CMIP) tunnel when a CMIP network is accessed due to handover of the user equipment; and at the home agent, severing the PMIP tunnel when the user equipment completes performing handover.
摘要:
A client apparatus includes a wireless network access unit configured to access wireless networks, a packet analysis unit configured to analyze uplink and downlink data packets, a security tunnel processor configured to establish a mobile security tunnel and to maintain the established mobile security tunnel when handover is performed in heterogeneous networks, a wireless network controller configured to control a wireless network accessing process and a connection releasing process of the wireless network access unit, a mobile security tunnel controller configured to perform a MOBIKE protocol and to control a process of establishing and maintaining a mobile security tunnel of the security tunnel processor, and a wireless network connection manager configured to request the mobile security tunnel controller to perform a MOBIKE protocol by managing MOBIKE information and to control handover by setting up and managing a wireless network access policy.
摘要:
Disclosed herein is a method and system for Mobile Internet Protocol version 4 (MIPv4)-based fast handoff between heterogeneous networks. The method includes the first step of an Mobile Station (MS) acquiring information about a second Foreign Agent (FA) pertaining to a second wireless network to be newly accessed from a first FA pertaining to a first wireless network that is different from the first wireless network and is previously accessed; the second step of the MS requesting registration from an integrated Home Agent (HA) through the first FA and the second FA; the third step of generating a temporary tunnel between the first FA and the second FA; and the fourth step of the HA transmitting a reply to the registration request to the MS through the second FA.
摘要:
An electronic mailing method on the Internet with a function of reception confirmation is described. The method is comprising the steps of (a) assigning a unique code to the e-mail of a sender and recording the unique code in a database; (b) attaching to the e-mail a CGI executive program that automatically sends the unique code to the web server of the sender when the receiver receives the e-mail; (c) sending the unique code to the web server of the sender by the automatic execution of the CGI executive program when the e-mail is received by the receiver; and (d) comparing the unique code sent in the step (c) and the unique code recorded in the step (a) and, if they are identical, sending reception confirmation information to the sender.
摘要:
Disclosed is a functional chair capable of adjusting a height of a seat according to a body type and posture of a user. The functional chair includes a first seat configured to support a left pelvis, a second seat which is provided at a right side of the first seat and is configured to support a left pelvis, a frame which is provided below the first seat and the second seat to support the first and second seats, a backrest which protrudes from one side of the first and second seats in an upward direction to support a user's back, a seat pressure measuring unit which is respectively provided on the first seat and the second seat to measure pressure of the first and second seats and send a first pressure value and a second pressure value, a controller which receives the first pressure value and the second pressure value from the seat pressure measuring unit to generate a height adjusting signal for adjusting a height of the first and second seats, a memory which stores in advance drive command information corresponding to a difference between the first pressure value and the second pressure value, a first height adjusting unit which is provided between the first seat and the frame to adjust the height of the first seat according to the height adjusting signal from the controller, and a second height adjusting unit which is provided between the second seat and the frame to adjust the height of the second seat according to the height adjusting signal from the controller.
摘要:
An apparatus and method for localizing a sound source in a robot are provided. The apparatus includes a microphone unit implemented by one or more microphones, which picks up a sound from a three-dimensional space. The apparatus also includes a sound source localizer for determining a position of the sound source in accordance with Time-Difference of Arrivals (TDOAs) and a highest power of the sound picked up by the microphone unit. Thus, the robot can rapidly and accurately localize the sound source in the three-dimensional space with minimum dead space, using a minimum number of microphones.
摘要:
A detecting apparatus and method of a robot cleaner is disclosed. The apparatus includes a detecting unit provided with a transmitting unit for sending a signal to detect the floor and a receiving unit for receiving a signal sent from the transmitting unit to be reflected on the floors an optic angle adjusting unit disposed at least one of the transmitting unit and the receiving unit and configured to adjust optic angles of the signals, and a light shielding unit configured to partially shield a signal sent through the optic angle adjusting unit in order to reduce a deviation of each signal of the transmitting unit and the receiving unit. Accordingly, a measurement deviation with respect to color and feel of the floor can be reduced. Also, an amount of light received at the receiving unit can be obtained as much as required, which allows an accurate detection of the detecting apparatus. In addition, even if there are both drop-off and bump on the floor, the robot cleaner can smoothly operate.