Abstract: The disclosure discloses an ultraviolet lamp bead package structure and a preparation method thereof. The ultraviolet lamp bead package structure includes a substrate and a first metal layer arranged on each of a package surface and a back surface of the substrate. A Zener chip is arranged on the electrode region of the first metal layer. The first metal layer also has a peripheral region. A second metal layer is arranged on the first metal layer. An Ultra Violet C radiation (UVC) chip is arranged on the electrode region of the second metal layer. The second metal layer is provided with a quartz lens by sealing through the peripheral region of the second metal layer. The quartz lens wraps the UVC chip and the Zener chip. An filler with anti-UVC characteristic is filled between the quartz lens and each of the UVC chip and the Zener chip.

Abstract: Disclosed are an LED direct-view projection array light-emitting module and a display screen. The light-emitting module includes a video decoding drive board, a display unit drive board, display units, and an imaging unit from the bottom up. The present disclosure uses a semiconductor technology to integrate and miniaturize light sources that emit light actively to obtain integrated LED array chips as light-emitting sources, directly controls the light-emitting sources through a circuit, then uses magnification objective lenses to perform a certain magnification according to an application scenario requirement, and then focuses on and image each pixel by using a focusing lens. Through a combination of the magnification lenses and the focusing lenses, when the light source intensity is sufficient, products of various sizes can be designed; when splicing into a large screen, splicing angles can be adjusted arbitrarily to realize a flexible screen or a special-shaped screen.

Abstract: Disclosed are an LED direct-view projection array light-emitting module and a display screen. The light-emitting module includes a video decoding drive board, a display unit drive board, display units, and an imaging unit from the bottom up. The present disclosure uses a semiconductor technology to integrate and miniaturize light sources that emit light actively to obtain integrated LED array chips as light-emitting sources, directly controls the light-emitting sources through a circuit, then uses magnification objective lenses to perform a certain magnification according to an application scenario requirement, and then focuses on and image each pixel by using a focusing lens. Through a combination of the magnification lenses and the focusing lenses, when the light source intensity is sufficient, products of various sizes can be designed; when splicing into a large screen, splicing angles can be adjusted arbitrarily to realize a flexible screen or a special-shaped screen.

Abstract: The disclosure discloses an ultraviolet lamp bead package structure and a preparation method thereof. The ultraviolet lamp bead package structure includes a substrate and a first metal layer arranged on each of a package surface and a back surface of the substrate. A Zener chip is arranged on the electrode region of the first metal layer. The first metal layer also has a peripheral region. A second metal layer is arranged on the first metal layer. An Ultra Violet C radiation (UVC) chip is arranged on the electrode region of the second metal layer. The second metal layer is provided with a quartz lens by sealing through the peripheral region of the second metal layer. The quartz lens wraps the UVC chip and the Zener chip. An filler with anti-UVC characteristic is filled between the quartz lens and each of the UVC chip and the Zener chip.

Abstract: A belt drive system includes a driving wheel, a driven wheel and a drive belt. A first and a second drive belt tensioning mechanism are included. When a first drive member rotates, it moves relative to a first mounting seat and along an axial direction of the first drive member to drive the first tensioning device to move relative to the housing. When a second drive member rotates, it drives the second tensioning device to move relative to the second mounting seat. A related automatic walking robot includes a housing, a road wheel set rotatably arranged on the housing, and a walking motor arranged on the housing for driving the road wheel set.

Abstract: A belt drive system includes a driving wheel, a driven wheel and a drive belt. A first and a second drive belt tensioning mechanism are included. When a first drive member rotates, it moves relative to a first mounting seat and along an axial direction of the first drive member to drive the first tensioning device to move relative to the housing. When a second drive member rotates, it drives the second tensioning device to move relative to the second mounting seat. A related automatic walking robot includes a housing, a road wheel set rotatably arranged on the housing, and a walking motor arranged on the housing for driving the road wheel set.

Abstract: A smart mower includes a housing with an inner housing located at a lower portion and an outer housing connected with the inner housing and located at an upper portion; a cutting mechanism; and a walking mechanism. The cutting mechanism and the walking mechanism are mounted in the inner housing. A handle is disposed on the inner housing adjacent the outer housing for conveying the smart mower. Projection of the handle on a horizontal plane is within a range of projection of the outer housing on the horizontal plane.

Abstract: The separated particle charge multivariate analysis instrument includes a transparent sealed container and, inside the transparent sealed container, an axial fan, a tube carrier plate, a rail board, double screw shafts, a biaxial motor, parallel electrode plates and so on. The separated particle charge multivariate analysis instrument of the present invention measures out the charge amount of the particle after leaving the particle bed by simulating a controllable environmental factor in the transparent sealed container on the basis of the inner tube, the outer tube, the electrometer and the charge amount of the particle entering into the inner tube at the measurement site, and analyzes effects of environmental factors, particle physical parameters and geometric parameters to the charge by adjusting environmental variables in the transparent sealed container.

Abstract: The separated particle charge multivariate analysis instrument includes a transparent sealed container and, inside the transparent sealed container, an axial fan, a tube carrier plate, a rail board, double screw shafts, a biaxial motor, parallel electrode plates and so on. The separated particle charge multivariate analysis instrument of the present invention measures out the charge amount of the particle after leaving the particle bed by simulating a controllable environmental factor in the transparent sealed container on the basis of the inner tube, the outer tube, the electrometer and the charge amount of the particle entering into the inner tube at the measurement site, and analyzes effects of environmental factors, particle physical parameters and geometric parameters to the charge by adjusting environmental variables in the transparent sealed container.

Abstract: An electronic device that is operable to provide navigation information to a user by utilizing the navigation system of a separate mobile device, such as a GPS-enabled mobile phone. The electronic device includes a communication interface for communicating navigation data between the mobile device and the electronic device. The electronic device also includes a display for displaying the navigation data received from the mobile device. The display of the electronic device may be larger than the display of the mobile device, such that a driver of an automobile may use the electronic device to provide a more desirable viewing experience. Further, the electronic device may include a user interface, such as a touch screen, that allows a user to access and control the navigation functions of the mobile device. The electronic device may also be operable to communicate with other portable electronic devices.

Abstract: An electronic device that is operable to provide navigation information to a user by utilizing the navigation system of a separate mobile device, such as a GPS-enabled mobile phone. The electronic device includes a communication interface for communicating navigation data between the mobile device and the electronic device. The electronic device also includes a display for displaying the navigation data received from the mobile device. The display of the electronic device may be larger than the display of the mobile device, such that a driver of an automobile may use the electronic device to provide a more desirable viewing experience. Further, the electronic device may include a user interface, such as a touch screen, that allows a user to access and control the navigation functions of the mobile device. The electronic device may also be operable to communicate with other portable electronic devices.