摘要:
A system for network load balancing includes multiple access points (AP), multiple entertainment devices and a DHCP server. Each AP is connected to one entertainment devices and the DHCP server, each entertainment device includes a DNS server and a web server, and all DNS servers store and parse the same domain names. When the AP receives an access request of a wireless terminal, the DHCP server designates a DNS server in an entertainment device connected to the AP as a DNS server for the wireless terminal. When the AP receives a domain name parsing request of the wireless terminal, the designated DNS server parses the domain name into an IP address of a web server in the entertainment device including the DNS server. When the AP receives a web access request of the wireless terminal, the designated web server responds to the web access request via the AP.
摘要:
A display with a detachable screen according to the present application includes a servo body and a display screen, the display screen is electrically connected to the servo body via an electric wire, the display screen is detachably connected to the servo body, and the servo body drives the display screen to move between an unfolded position and a folded position, and the electric wire is detachably connected to the display screen. The display with the detachable screen according to the present application has a simple and compact structure and occupies a small volume, and the assembling and disassembling is convenient and efficient, the display screen can be separately detached from the servo body easily, thus it is convenient to independently maintain and replace the display screen without the complicated process of detaching the entire display from an interior trimming panel of a luggage rack of a passenger aircraft, thereby greatly shortening a maintenance time, reducing a labor intensity, improving a maintenance efficiency and reducing maintenance costs.
摘要:
Disclosed in the invention are a device for deploying and retracting liquid crystal display (LCD) and Control Method Thereof, including shafts connected to the LCD (1) and a servomechanism which drives the LCD on the shafts to deploy and retract. Wherein, the said servomechanism comprises a gear motor, a one-way bearing dynamically connected to the gear motor, an electromagnetic clutch, a speed reducer, and a plane four-bar linkage mechanism which drives the LCD on the said shafts to rotate. The said electromagnetic clutch is also connected to a spring motor which dynamically connects to the speed reducer. In the deploying and retracing direction of the said LCD, a stowed position transducer and a retracted position transducer are disposed to monitor the LCD position changes and an angle sensor to monitor the LCD deploying speed changes. The said stowed position transducer, retracted position transducer, and angle sensor are electrically connected to a controller. The controller collects and processes signals generated by the stowed position transducer, retracted position transducer, and angle sensor and controls LCD retracting in the event of power outage or unexpected exceptions.
摘要:
Disclosed in the invention are a device for deploying and retracting liquid crystal display (LCD) and Control Method Thereof, including shafts connected to the LCD (1) and a servomechanism which drives the LCD on the shafts to deploy and retract. Wherein, the said servomechanism comprises a gear motor, a one-way bearing dynamically connected to the gear motor, an electromagnetic clutch, a speed reducer, and a plane four-bar linkage mechanism which drives the LCD on the said shafts to rotate. The said electromagnetic clutch is also connected to a spring motor which dynamically connects to the speed reducer. In the deploying and retracing direction of the said LCD, a stowed position transducer and a retracted position transducer are disposed to monitor the LCD position changes and an angle sensor to monitor the LCD deploying speed changes. The said stowed position transducer, retracted position transducer, and angle sensor are electrically connected to a controller. The controller collects and processes signals generated by the stowed position transducer, retracted position transducer, and angle sensor and controls LCD retracting in the event of power outage or unexpected exceptions.
摘要:
A screen turning-over mechanism includes a rotating shaft (2) connected to a screen and a motor (1) drivably connected to the rotating shaft. The motor is connected to an electromagnetic damping loop which forms a closed path with the motor only when the motor is in a de-energized state. The rotating shaft is also connected to an elastic mechanism (4). When the motor is energized, the motor drives the rotating shaft to rotate to extend the screen, and the rotating shaft drives the elastic mechanism to deform elastically to store energy; and when the motor is de-energized, the elastic mechanism releases the stored energy to drive the rotating shaft to rotate to retract the screen. The screen turning-over mechanism according to the present application has a simple and compact structure, occupies a small volume of space, and has a long service life.