6 results about "Pointing systems" patented technology

This invention discloses a two-axis multi-frame spatial beam pointing system based on a follower mirror and its design method, belonging to the field of photoelectric tracking and aiming. The system includes an outer azimuth axis, an outer pitch axis, an inner pitch axis, an inner azimuth axis, and a follower mirror; the inner pitch axis is coaxial with the outer pitch axis and both are hollow axes; the follower mirror is mounted on the inner pitch frame, and its rotation axis is parallel to the inner azimuth axis. This invention compensates for the optical axis tilt caused by the movement of the inner azimuth axis through the following motion of the follower mirror, and establishes an optical axis offset model for parameter optimization to reduce the optical axis offset. Simultaneously, a Coudre optical path change model is established for focusing of the tracking imaging component. Compared with the traditional two-axis four-frame structure, this invention simplifies the Coudre optical path, reduces debugging difficulty, improves the optical chamber ratio, and realizes the effective application of a multi-frame structure in a spatial beam pointing system.

The utility model discloses sighting telescope adjusting component with spiral rotating mechanism relates to sighting telescope technical field. Including spline screw, the outer wall fixed sleeve of spline screw has and adjusts seat, the outer wall of spline screw top is engaged with spline dial table, the inside engagement of spline dial table top has tooth joint piston, the top of spline dial table outer wall and the inside joint of tooth joint piston has locking disc, the inside movable sleeve of locking disc outer wall has rubber ring, and the intuitive display of the number of turns is realized through triple digital indication system: the reference hole guide arrow of adjusting hand wheel top is opened and is guided with the edge scale mark, and every rotation, the reference hole guide arrow is aligned with fixed mark, the top of eccentric buoy is opened and is indicated arrow number mark arrow, and the bottom slider slide rod is along the spiral groove limit sliding groove of limit cam and slides, and every rotation, the arrow number mark arrow accurate direction adjusting hand wheel on corresponding number of adjusting hand wheel.

A distribution system (DS) mapping change method includes: after a non-access-point station (non-AP STA) initiates transition from a first access point (AP) in a multi-AP (MAP) system to a second AP in the MAP system, performing a context transfer procedure to transfer context of the first AP to the second AP, wherein the context includes parameters of traffic between the non-AP STA and the first AP; and performing a DS mapping change procedure to inform a DS of mapping between the non-AP STA and the second AP, wherein the DS mapping change procedure is not handled by reassociation.

The application discloses a movable water surface and underwater integrated offshore interception system, and belongs to the technical field of marine defense. A propeller is installed on each floating body, and an upper computer is installed on each floating body. A navigation light pointing system and a high-precision inertial navigation system are arranged on the floating body, and the navigation light pointing system and the high-precision inertial navigation system are electrically connected with the upper computer installed on the floating body. A mast is arranged on the top of the floating body, a camera of a 360-degree remote omnidirectional video system on the sea and a signal antenna of a MESH self-organizing network offshore base station are arranged on the mast, and the 360-degree remote omnidirectional video system on the sea and the MESH self-organizing network offshore base station are wirelessly communicated with the upper computer. The application adopts a modular assembly design, is convenient to disassemble, replace and store and maintain, has small engineering quantity, and has high concealment and is not easy to be found. The application adopts a cylindrical floating body, a cross propeller and a double-floating body shared mooring design, and the anti-overturning ability, the maneuverability and the offshore stability of the system are improved.

The method, device and system for initializing a VIO system relate to the technical field of visual positioning and navigation, and the method comprises the following steps: obtaining state information of the VIO system; sending indication information to a control device of a self-moving device according to the state information, the indication information being used for instructing the control device to control the self-moving device to first be stationary and then be started; and when it is determined that the self-moving device has been stationary, performing a static initialization operation on the VIO system to determine an initial value of the VIO system, the state information comprising at least one of the following: the VIO system initiating a first signal, the first signal being used for indicating that the VIO system is about to be initially started, or data abnormality occurring in a data processing process of the VIO system, or a preset time duration being experienced since a time point at which a last static initialization operation is completed. Based on the scheme, the VIO system can be provided with a condition for static initialization, so as to implement a static initialization operation on the VIO system, and the efficiency of initialization can be improved.

Provide a system. 【Solution means】 Means for analyzing the user's learning history to estimate the area of interest, Means for selecting and displaying appropriate learning materials based on the estimated area of interest, Means for analyzing voice commands to operate learning content, Means for promoting learning in a game-like manner by means of a point system and a reward system, Means for managing the learning schedule and giving reminders at set times, Means for providing the learning progress data to the guardian, Means for providing feedback to the user using visual information and auditory information to achieve two-way learning, Means for providing customized quizzes and information based on the user's interests, Means for providing virtual rewards when a specific point is reached, Means for generating prompts based on the learning theme A system including.