27 results about "Pointing systems" patented technology

The invention discloses an automatic generation method for health science popularization articles, and belongs to the crossing field of computer technology and health science popularization. The method comprises the following steps that S1, health authority information is collected through a multi-source crawler, and an original material pool is obtained through Sension-BERT vectorization duplicate removal and BioBERT medical entity labeling; s2, classifying nine types of health themes by using a RoBERTa fine tuning model; s3, multiple AI model supplementary materials are made into a structured package; s4, predetermining optimal selection questions in combination with AI three-dimensional scoring and editing; s5, calling the multi-dimensional knowledge base to generate a professional knowledge packet; s6, generating an outline and performing three-dimensional five-score system auditing of knowledge point fullness and the like; s7, the LLM expands and writes the text and marks knowledge sources; s8, performing double-stage auditing; s9, anthropomorphic draft moistening; s10, intelligently illustrating the picture; s11, when the matching degree is smaller than a preset threshold value, automatically updating the knowledge base; and S12, integrating and outputting. According to the method, the health science popularization article is generated, the manual participation time is shortened to be within 30 minutes, the medical error rate is reduced to be below 5%, the daily output of a 10-person team is improved by 3-5 times, the annual human cost is reduced by 60% or above, and the large-scale and high-quality science popularization requirements are met.

The present application provides a spaceborne acquisition, tracking and pointing system and a free space optical communication link establishment method. The system comprises: an optical antenna, a laser generation module, a first detector, a light spot position determination module, a first tracking controller, and a first tracking execution mechanism. During terminal link establishment, a first terminal traverses scan points in an initial scan acquisition zone, and emits a first optical beam on the basis of the pointing direction of the currently traversed scan points. When a first feedback optical beam transmitted by a second terminal is received, the first terminal adjusts the boresight direction of the optical antenna. The first terminal emits a second optical beam by means of the optical antenna and receives a second feedback optical beam emitted by the second terminal in response to the second optical beam. When the second feedback optical beam is received, the first terminal emits a third optical beam by means of the optical antenna, so that the second terminal performs tracking processing in response to the third optical beam.

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 invention relates to a wireless optical communication tracking and pointing system and method and a computer program product. The system is arranged at a first end of the wireless optical communication system, the wireless optical communication system further comprises a second end, the first end and the second end carry out wireless optical communication, and the system comprises an image acquisition device used for acquiring a current frame target image of the second end; the programmable logic component is integrated with a target preset position identification unit and a rotary table control unit, and the target preset position identification unit is used for identifying coordinates of a preset position of a target pattern in a current frame of target image; the turntable control unit is used for comparing the coordinates of the preset position of the target pattern in the current frame of target image with the coordinates of the preset position of the target pattern in the previous frame of target image, and generating a rotation control signal of the two-dimensional turntable; and the two-dimensional turntable is used for rotating according to the rotation control signal so as to point to the preset position of the target pattern in the target image of the current frame and realize tracking and pointing of the second end. The size of the tracking and pointing system can be reduced by adopting the system.

Provided herein is a two-axis pointing system and methods for pointing a payload, including a first actuator connected to the payload by at least a first connecting rod, wherein the first actuator controls movement of the payload along a first actuator axis by moving the first connecting rod, a second actuator connected to the payload by a second connecting rod, wherein the second actuator controls movement of the payload along a second actuator axis by moving the second connecting rod, and a first strut, a second strut, and a third strut, wherein each strut is movably connected to the payload at a first end and movably connected to a base at a second end, wherein the first strut, second strut, and third strut restrict movement of the payload, caused by the first actuator and the second actuator, to rotation around a virtual pivot point.

A method of directing an optical axis of an optical unit (1) at a target object (3) using a pointing system (5) mounted on a moving platform (2). The pointing system (5) comprises a plurality of actuators (8) that jointly control a pointing direction of the optical unit (1) relative to the moving platform (2). The method comprises obtaining trajectory data specifying a trajectory of the target object (3), obtaining attitude data specifying a current attitude of the moving platform (2) and a current rate of change of the attitude of the moving platform (2), obtaining actuator data specifying current positions of the plurality of actuators (8), processing the trajectory data, the attitude data and the actuator data to generate control data specifying updated positions for the plurality of actuators (8), and providing the control data to the pointing system (5) to set the positions of the plurality of actuators (8) based on the control data.

The invention relates to the technical field of unmanned aerial vehicle photoelectric detection, and provides an AI-based unmanned aerial vehicle photoelectric tracking and pointing system and a target tracking method thereof.The system comprises an image acquisition and preprocessing terminal, a multi-source structure analysis terminal, a thermal image processing terminal, an inertial data analysis terminal, a scoring terminal and an intelligent regulation and control terminal; the image acquisition and preprocessing terminal is used for acquiring a visible light image and an infrared thermal image and outputting image data; the multi-source structure analysis terminal is used for receiving visible light image data and generating a structure significance scoring result; the thermal image processing terminal is used for receiving the infrared image data and extracting thermal characteristic parameters; the inertial data analysis terminal is used for collecting triaxial acceleration and angular velocity data, and processing and generating a dynamic stability scoring result; the scoring terminal is used for fusing the scoring results and outputting a joint scoring result; and the intelligent regulation and control terminal is used for performing judgment according to the joint scoring result and selectively outputting pitching and yaw angle control instructions according to the judgment result.

The invention relates to the technical field of bridge engineering testing, in particular to a two-dimensional structure automatic control vibration testing device which comprises a transverse rail, two downwind rails and a model unit, the transverse rail is arranged above the downwind rails, one downwind rail is fixed to the ground, the other downwind rail is fixed to a top external keel, and the model unit is arranged above the transverse rail. The model unit comprises two groups of model systems and two groups of model bodies, each group of model system comprises a displacement rod, a lifting point system, a spring system and a detection unit, and the detection unit is arranged between the lifting rod and the two groups of downwind tracks; the electric vibration exciter instantly starts to drive the model system to drive the model body to vibrate, the detection unit collects vibration data, and a double-model parallel test platform is integrated on one set of device, so that rapid switching and synchronous comparison test of various sliding and fixed boundary conditions are realized. The limitation that a traditional device is single in function and inflexible in boundary simulation is overcome.

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.

An optical axis of an optical unit 1, such as a telescope, is directed at a target object 3, such as a satellite, using a pointing system 5 mounted on a moving platform 6. The pointing system has actu

To provide systems and methods which enable a pivot point of reflector movement to be close to a source and reflector focal point.SOLUTION: A two-axis pointing system includes: a first rotary actuator 140 which controls movement of a payload, which may be an antenna reflector 102, along a first actuator axis by moving a first connecting rod 144; a second rotary actuator 150 which controls movement of the payload along a second actuator axis; and a first strut 110-1, a second strut 110-2 and a third strut 110-3, where each strut is movably connected to the payload at a first end and movably connected to a base 160 at a second end, and restricts movement of the payload, caused by the first rotary actuator 140 and the second rotary actuator 150, to rotation around a virtual pivot point 108.SELECTED DRAWING: Figure 1A

The invention provides a coarse and fine switching method and device in satellite top-crossing tracking and pointing, and the method comprises the steps: carrying out the state estimation and uncertainty quantification based on the instantaneous pointing error of a satellite top-crossing tracking and pointing system at a satellite top-crossing stage, generating and dynamically updating the two-dimensional probability density distribution describing the position of a light spot, and carrying out the dynamic updating of the two-dimensional probability density distribution; fusing with a light intensity distribution diagram influenced by atmospheric turbulence to obtain an effective receiving index, and determining a region of interest for fine aiming detection from probability distribution; performing spatio-temporal clustering analysis on multiple frames of detection data continuously collected by the fine aiming equipment, and calculating the coordinates of a fine aiming tracking point and the identification confidence of the fine aiming tracking point; and predicting the tracking interruption probability based on the atmospheric turbulence prediction data and the probability distribution, performing judgment in combination with the confidence coefficient, and if the judgment is passed, switching the control system to a fine aiming closed-loop tracking mode. According to the invention, rapid, reliable and anti-interference automatic switching from coarse aiming to fine aiming can be realized in a high dynamic scene in which a satellite rapidly passes through the top, so that rapid establishment and stable maintenance of a free space optical communication link are ensured.

The application discloses a kind of based on short weapon competition project's integral system and device thereof.The based on short weapon competition project's integral system, including parameter setting module, hardware sensing module, integral statistics module, fault detection module and judge judging module.The preset parameter of the application is transmitted to judge judging module by parameter setting module, then the obtained sensing signal is transmitted to integral statistics module by hardware sensing module, then the integral condition is obtained by integral statistics module to the sensing signal received and is transmitted to judge judging module, the detection result is obtained by the monitoring data of fault detection module and is transmitted to judge judging module, finally the data collected is fed back to preset judge by judge judging module, and the processing result given by preset judge is recorded in cloud, improve the integral accuracy of short weapon competition project, solve the problem of low integral accuracy of short weapon competition project in prior art.

Provided herein is a two-axis pointing system and methods for pointing a payload, including a first actuator connected to the payload by at least a first connecting rod, wherein the first actuator controls movement of the payload along a first actuator axis by moving the first connecting rod, a second actuator connected to the payload by a second connecting rod, wherein the second actuator controls movement of the payload along a second actuator axis by moving the second connecting rod, and a first strut, a second strut, and a third strut, wherein each strut is movably connected to the payload at a first end and movably connected to a base at a second end, wherein the first strut, second strut, and third strut restrict movement of the payload, caused by the first actuator and the second actuator, to rotation around a virtual pivot point.

The utility model relates to the technical field of tricholoma matsutake quality detection, and discloses a detection device which comprises a presentation system, a detection system and an indication system, the detection system comprises a probe and an elastic piece, the indication system comprises a transmission piece and an indication piece, and the presentation system comprises a shell and a presentation area arranged outside the shell; a plurality of sub-areas are sequentially distributed in the presentation area in the movement direction of the indicating piece, and the sub-areas are used for representing different quality grades. During application, the probe of the detection device can abut against the surface of the tricholoma matsutake, the elastic effect of the surface of the tricholoma matsutake enables the probe to move towards the interior of the shell, and therefore the transmission piece drives the indicating piece to move to one sub-area corresponding to the presentation area, and the current quality grade of the tricholoma matsutake can be visually presented through the sub-area corresponding to the indicating piece. The tricholoma matsutake does not need to be cut to obtain a sample for detection, the subjectivity of manual pressing observation detection is also avoided, and rapid and nondestructive detection of the tricholoma matsutake quality is realized.

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.

The present application relates to the technical field of bridge engineering test, and specifically relates to a two-dimensional structure automatic control vibration test device, which comprises a transverse track, two groups of along-wind tracks and model units, the transverse track is arranged above the along-wind tracks, one group of the along-wind tracks is fixed to the ground, and the other group is fixed to the top outer keel, the model unit comprises two groups of model systems and two groups of model bodies, each group of the model system comprises a displacement rod, a hanging point system, a spring system and a detection unit, the detection unit is arranged between the hanger and the two groups of along-wind tracks; an electric exciter is instantaneously started to drive the model system to drive the model body to vibrate, the detection unit collects vibration data, through integration of a double-model parallel test platform on a set of device, quick switching and synchronous comparison test of various boundary conditions such as sliding and fixing are realized, and the limitations of single function and inflexible boundary simulation of traditional devices are overcome.

The invention discloses a high-precision dynamic pointing calibration method for a laser communication system, which not only has an online calibration function, but also has a dynamic pointing deviation pre-compensation function, and establishes a compensation reference value (initial calibration is taken as a reference) on the premise of completing the online calibration function. And the deviation value of each online calibration is compensated and corrected on the basis of the reference value. Through the above mode, the laser communication pointing system is successfully converted from a static tool needing manual intervention to a dynamic intelligent agent with self-learning and self-optimization capabilities, and the performance of the laser communication pointing system in a complex and long-distance application scene is greatly improved.

The present invention relates to an indication system for generating an indication (114). The system includes: at least one indicating device (106), at least one detection device (104) configured to monitor at least one area (109a, 109b) inside a building to provide monitoring data, and a control unit (108). The control unit (108) is configured to: detect at least one predefined object (110) with a specific need based on the monitoring data obtained from the at least one detection device (104), and in response to the detection of the at least one predefined object (110), control the at least one indicating device (106) to generate a visual indication (114), the visual indication (114) including guidance information to a door device (102a) assigned to the detected at least one predefined object (110). The invention also relates to a method for generating the indication (114).

Embodiments provide systems for reorientation of a beam pointers, receivers (or detectors when supported by reorientable components), and / or antennas for remote object monitoring systems, (e.g., detector systems or interrogation systems) such as for example radar antenna orientation systems, that use a mechanical leverage system in the form of a slider-crank mechanism that pivotally couples a receiver, and / or antenna to a face-mount crossed-roller bearing that in turn is coupled to one or more linear actuators, where the combination provides for both pitch and yaw motion of the beam point, receiver, or antenna relative to a base with linear motion of an actuator providing pitch orientation of the beam pointer, receiver, or antenna while not moving heavy system components which instead are rotationally coupled to beam pointer, the receiver, or antenna to reduce linear and rotational inertia of the moving pointer, receiver, or antenna.

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.

Systems and methods for two-axis pointing of payloads are provided. A two-axis pointing system includes a pedestal, a support plate mounted to the pedestal by a connection which allows movement of the support plate in at least two rotational degrees of freedom, a payload mounted to the support plate, a first rotary actuator physically connected to the support plate and operable to move the support plate along a first of the rotational degrees of freedom, a second rotary actuator physically connected to the support plate and operable to move the support plate along a second of the rotational degrees of freedom, a baseplate, wherein the pedestal, the first rotary actuator, and the second rotary actuator are fixed to the baseplate, a plurality of harnesses for supplying at least one of power and telemetry for actuation of the system, and a thermal control system integrated with the support plate.

A method, network node and wireless device (WD) for common spatial filter indication for reference signals in a multi-transmit / receive point (TRP) system are disclosed. According to one aspect, the method in the WD includes receiving at least one of an activation command and an indication for first and second aggregate TCI (transmission configuration indicator) states of a plurality of aggregate TCI states, each of the first and second aggregate TCI states including quasi-co-location (QCL) information for at least one of downlink reception and uplink transmission of a plurality of at least one of physical channels and reference signals by the WD. The method further includes receiving an association of each of the plurality of reference signals with one of the first and second aggregate TCI states.