6results about How to "Consistent movement" patented technology

The invention provides a middle and primary school multi-person interactive teaching method and system based on a VR technology, and relates to the technical field of virtual reality, and the method comprises the steps: generating a model through deep learning based on pre-obtained teaching aid model data, determining subcomponents, combining a teaching aid generation engine, and constructing a virtual teaching aid; a color image and a depth image are obtained through a structured light depth camera, two-dimensional pixel coordinates are obtained, depth information is combined, a three-dimensional skeleton curve of limb movement of a student is generated, an optical motion capture result is obtained, an inertial motion capture result is obtained through inertial drift calibration based on the three-dimensional skeleton curve, and a limb movement three-dimensional track of the student is reconstructed; generating a force feedback signal by solving a kinetic equation through a collision detection algorithm based on the three-dimensional trajectory of the limb movement of the trainee; and rendering the virtualization model into a virtual teaching scene, synchronizing the limb movement three-dimensional track and the force feedback signal in real time, and generating a multi-person collaborative interaction process of the virtual teaching aid.

The present invention discloses a boarding ladder assembly and a boarding device, the boarding ladder assembly includes: a first ladder frame, a ladder frame connector, a second ladder frame, a ladder frame base, a plurality of pedals, a first connecting rod, a second connecting rod, and a connecting rod connector; wherein, during the switching process of the boarding ladder assembly from a folded state to an inclined state, the second ladder frame is first kept horizontal with the ladder frame base, the first connecting rod uses the hinge axis of the third hinge position as a rotation axis, and the connecting rod connector uses the hinge axis of the fourth hinge position as a rotation axis, and rotates to a horizontal state toward a side away from the ladder frame base; the first connecting rod and the second connecting rod are kept in the same straight line, and the first ladder frame and the second ladder frame are then rotated as a whole to form a certain angle with the ladder frame base. Thus, the purpose of the device being foldable, occupying a small space, and having adjustable pedals for easy boarding is achieved.

The application relates to the technical field of 3D printers, in particular to a multi-axis delta 3D printer which comprises printing modules, the printing module comprises an equilateral triangular prism-shaped rack and a printing platform and a printing head arranged on the rack, the rack comprises two supporting platforms and three groups of supporting columns fixedly connected between the two supporting platforms, the printing module further comprises three groups of sliders corresponding to the supporting columns, transmission arms and driving assemblies, the slider is slidingly arranged on the supporting column, the two ends of the transmission arm are respectively spherically hinged with the slider and the printing head, the driving assembly is used for driving the slider to ascend and descend, the printing module is provided with at least two, one side wall of the supporting platform of the two adjacent printing modules abuts against each other and the side wall is an abutting side wall, the slider at any one end of the abutting side wall of the supporting platform in the printing module and the slider at the corresponding one end of the supporting platform in the adjacent printing module are driven by the same group of driving assemblies.

The present application discloses a support-free locomotive rear wheel and a locomotive, the rear wheel comprising: a first wheel, a second wheel, a mounting shaft, an elastic member and a release-locking mechanism, wherein the first wheel is rigidly connected to the mounting shaft, the second wheel is connected through the mounting shaft and can slide along the mounting shaft; the elastic member is sleeved on the portion of the mounting shaft between the first wheel and the second wheel; the release-locking mechanism is arranged at the end of the mounting shaft outside the second wheel. A locomotive comprises the above-mentioned support-free locomotive rear wheel. The present application divides the rear wheel into two to complete the three support points required for parking the locomotive, thereby improving the convenience of parking. At the same time, when one of the two rear wheels fails to work, the other can still support the locomotive to continue traveling.

The utility model relates to the technical field of automation measurement discloses a project pile foundation settlement remote automation monitoring device, the utility model discloses a ground, project pile foundation sets up at the top of ground, the plug -in subassembly sets up at the both sides of ground top project pile foundation, including first fixed plate, sets up at the one side of ground top project pile foundation, still including second fixed plate, sets up at the one side away from first fixed plate of ground top, monitoring module sets up two groups, and is located first fixed plate and second fixed plate top, including support frame, sets up at the one side top away from project pile foundation of first fixed plate and second fixed plate, realizes synchronous tracking monitoring to project pile foundation settlement through setting up detachable plug -in fixed plate and clamping following mechanism. Pile foundation subsidence drives clamping block and lifting block perpendicular to descend, ensure that the measuring device and pile body movement are consistent, solve the problem that traditional monitoring equipment is easy to separate, and the problem of response lag is solved, and the data continuity and measurement reliability are improved.

The utility model discloses a kind of shift fork shaft clamping tool, including base, the top of the base is fixedly connected with support, the front end of the support is rotatably connected with carousel, the inside middle part of the carousel is fixedly connected with fixed ring, the middle part of the fixed ring, carousel and support is all penetrated and is equipped with through-hole, the front end of the carousel is fixedly connected with motor two, the output end of motor two is penetrated carousel and is fixedly connected with gear two inwards, the design of this tool is synchronously clamped inward using three arc clamps, ensure that clamping force is evenly distributed by gear and bevel gear structure, avoid uneven stress of workpiece, the non-metallic wear-resistant material on the surface of clamping plate effectively protects shaft surface from scratching, and compensate small synchronous error, improve clamping stability and processing precision, reduce workpiece damage risk simultaneously, simultaneously realize the angle flexible adjustment of shift fork shaft by motor driving carousel rotation, adapt to different processing needs.