508 results about "Ground level" patented technology

The application discloses a cable support for electrical construction and relates to the technical field of cable supports.The cable support comprises a support stand column, a horizontal supporting arm installed on the support stand column, a vertical supporting arm installed on the horizontal supporting arm and an electric telescopic rod arranged on the support stand column.The application places the placing arc plate above the upper area of the ground on both sides of the cable trench, and at this time, the cable can be installed on the flexible rolling wheels on the inner arc surface of the placing arc plate.The flexible rolling wheels can prevent the cable surface from being damaged by abrasion, can enable the cable to be laid at the ground level, can make the installation of the cable safer, can greatly improve the efficiency, can enable multiple cables to be arranged neatly above the ground at one time, can be lowered synchronously, can be arranged more regularly, can limit the radial shaking and twisting of the cables, can prevent the cables from being arched upward during the in-place lowering process and from swinging left and right and being twisted during the lowering process, and can make the cable center line coincide with the support installation reference.

The utility model discloses a kind of across shaft portal crane combined track beam structure, including the reinforced concrete track beam of ground part;Combined track beam across shaft part, the combined track beam is composed of custom steel box girder and the reinforced concrete track beam arranged thereon;Custom steel box girder is connected with enclosure structure by pre-embedded steel plate, and its top elevation is flush with the top elevation of the reinforced concrete track beam of ground part;Combined track beam and the reinforced concrete track beam of ground part are connected, form continuous portal crane track support structure;The device solves the problem that the track beam cannot be set on the ground due to the limitations of site or the width and span of foundation pit in the prior art;It has the characteristics that large-diameter circular shaft portal crane track beam can be arranged across shaft.

This utility model proposes a tent mat, specifically relating to the field of carpet technology. It includes a bottom layer and a top layer located on top of the bottom layer and connected to it via a zipper. A filling layer is provided between the bottom layer and the top layer. The bottom of the bottom layer has several evenly distributed grooves along its length. Supporting airbag strips are attached to the grooves via Velcro. The top two sides of the top layer have receiving cavities, each containing a protruding airbag attached via Velcro. The inner side of each protruding airbag has a placement groove for small items. The supporting airbag strips allow for inflation and adjustment of different areas of the carpet when the carpet is laid on uneven ground. This not only counteracts ground slope but also keeps the carpet level, thus increasing its applicability.

This application discloses a ground marking segmentation method, a vehicle, and a medium for use in a vehicle. The method includes: acquiring a current scene image captured by a camera on the vehicle; and processing the scene image to generate a bird's-eye view, the bird's-eye view including ground area markings and ground markers of the current scene. By acquiring the current scene image captured by the vehicle's camera and processing the scene image to generate a bird's-eye view, which includes ground area markings and ground markers of the current scene, the bird's-eye view can be accurately segmented from the ground area to the non-ground area and ground markers (such as lane lines, driving arrows, and text markings) can be identified, avoiding misidentification and missed identification of markings, and enabling the vehicle to recognize driving-related markings and driving surfaces.

The application provides a ground power plant three-dimensional parameterized design method, and relates to the technical field of intelligent design of hydropower and water conservancy engineering, and comprises the following steps: S1, the plant is disassembled into unit sections, installation rooms, auxiliary plants and foundation pit excavation units, and the number of units and the layout mode are defined as global driving parameters; S2, a zero-thickness line frame skeleton containing unit center line arrays and function area mounting points is constructed based on the plant axis and terrain data; S3, unit modeling is constructed; S4, a ground power plant three-dimensional model is automatically assembled; and S5, excavation and calculation are performed, an adaptive foundation pit excavation model is generated, and the first-stage and second-stage concrete quantities are automatically separated and counted by using the second-stage mechanical and electrical embedded part envelope, so that the technical problems of complex special-shaped flow passage civil structure modeling difficulty, plant area layout adjustment complexity and inaccurate first-stage and second-stage quantity statistics are solved, and the design efficiency and construction guidance value of the hydropower engineering are significantly improved.

The objective is to minimize the height difference between the first and second floor sections and the independent boards, even when using thick independent boards to connect the first and second floor sections, and to limit the range of movement of the independent boards relative to the first or second floor section. [Solution] The floor expansion joint comprises a first floor section provided in one building, a second floor section provided in the other building, separated from the first floor section and arranged along the same floor surface as the first floor section, an independent plate positioned between the first and second floor sections and arranged along the floor surface, a support section attached to the first or second floor section and supporting the independent plate from below so that the independent plate can move along the floor surface, and a limiting section provided on the lower surface of the independent plate and limiting the range of movement of the independent plate relative to the support section.

Hardware unit (10) for determining a non-linear ground surface, the hardware unit (10) comprising: at least one data input interface (1) via which the hardware unit (10) receives measurement points (M) from a 3D point-supplying sensor (20); a computing device (2) which maps the measurement points (M) into a two-dimensional grid (G) and determines a height difference for each grid cell (C) based on the measurement points (M) assigned to that grid cell (C), and classifies one of these grid cells (C) as invalid if the respective height difference exceeds a predetermined threshold; if the respective height difference of one of these grid cells (C) does not exceed the threshold and the respective height difference of at least two grid cells (C) directly adjacent to that grid cell (C) also does not exceed the threshold, classifies that grid cell (C) as a flat surface;wherein the computing device (2) performs a connected component analysis stepwise over the grid cells (C) classified as planar surfaces, separating planar surfaces belonging to obstacles from planar surfaces belonging to a ground surface and obtaining the nonlinear ground surface; a data output interface (3) that outputs the nonlinear ground surface.

The application provides a flying car audio and video sharing method and device and manned aircraft, and relates to the field of manned aircrafts. The cabin processing unit can respond to a video call starting instruction, thereby performing video call with ground equipment, so that the user in the manned aircraft can share the aerial view with the user using the ground equipment, and the aerial view is not limited by the cabin view, and the sharing process does not affect driving. Meanwhile, in the process of video call, the cabin processing unit collects a first audio stream and sends it to the ground equipment for playing, so that the user using the ground equipment can hear the voice of the user in the manned aircraft.

The present disclosure provides a kind of adaptive obstacle detection method and system, applied to unmanned driving technical field, comprising: by autonomous navigation module, the passable area information is calculated, and global environment navigation map is obtained, according to global environment navigation map, the point cloud data and IMU information of predetermined frequency are collected, and the unmanned vehicle attitude information is obtained based on IMU information;Through the road surface slope information of unmanned vehicle attitude information, the ground segmentation is carried out to point cloud data based on road surface slope information, and the non-ground point cloud data after ground segmentation is obtained, the obstacle detection is carried out to the non-ground point cloud data after ground segmentation, and the obstacle data is obtained.The present disclosure can solve the problems that the current mainstream ground segmentation algorithm generally exists poor real-time, over-segmentation, cannot completely segment ground with noise, and serious under-segmentation occurs when encountering slope road surface, improve the real-time and accuracy of obstacle detection.

1. Name of the product in this design: Drainage floor drain (adjustable). 2. Purpose of this design: This design is used as a drainage tool for connecting the ground to the piping system. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a land-air collaborative composite traffic network design method considering park-and-ride, and plans and designs a land-air collaborative composite traffic network with a vertical take-off and landing field as a center in a future land-air collaborative composite traffic network background, and proposes a corresponding network design model and a solving algorithm, mainly including: (1) a two-level planning model related to site selection, capacity allocation and integration of a landing field of an electric vertical take-off and landing aircraft (eVTOL) and ground parking facilities; (2) for a network equilibrium model in the two-level planning model, a modified improved gradient projection (M-iGP) algorithm is designed in an augmented Lagrange multiplier (ALM) framework; (3) a sensitivity analysis (SAB) algorithm is used to solve the two-level planning model, and the model and the algorithm are verified and analyzed in a Sioux Falls network.

This invention discloses an adaptive height adjustment mechanism for picking ears in a corn harvester. The picking roller is mounted on the rear frame and can slide up and down. It also includes a height adjustment component, which comprises a drive mechanism and a vision sensor. The vision sensor is located at the front of the picking roller, and the drive mechanism, mounted on the rear frame, adjusts the roller's vertical position. During use, the vision sensor detects changes in ground height. When a change is detected, a feedback signal triggers the drive mechanism to raise or lower the picking roller to adapt to the ground level. This invention uses a front-mounted vision sensor to detect ground height changes and then adjusts the picking roller's height in real time. This ensures the picking roller is at a suitable height while avoiding damage from impacts with the ground, preventing missed harvesting or ear erosion.

This invention provides a long-term strategy constraint method for integrated air-space-ground networks, comprising: constructing an integrated air-space-ground network model; calculating the structural importance weights of each ground node based on ground-side traffic and backhaul communication load; constructing a node interference cost and budget constraint model based on the weights and the total budget; modeling budget scheduling as a Markov decision process, using reinforcement learning to output the budget allocation ratio for each cycle to obtain the available budget for the current cycle; selecting ground nodes in descending order of unit structural benefit ratio using a reverse auction mechanism to obtain an intervention node set and update the remaining budget; calculating the structural influence factor based on the intervention node set to construct a repeated game model between the interferer and the user; and adjusting parameters using a zero-determinant strategy to limit the user's long-term benefit within a target range. This method can accurately identify key ground nodes, easily allocate interference resources rationally in multi-cycle operation, and continuously adjust the user's long-term benefit without significantly affecting the normal operation of the network.

The invention is notably directed to an aircraft carrier ground vehicle (10), which comprises a chassis (102), a landing platform (104), a coupling mechanism (106), and an actuation mechanism (108). The landing platform is designed to accommodate an aircraft (20). The coupling mechanism connects the landing platform to the chassis to form a kinematic pair, in which the landing platform is rotatably mounted on the chassis. The actuation mechanism is adapted to rotate the landing platform relative to the chassis, to allow an aircraft to land on the landing platform as the vehicle moves along a landing direction of the aircraft and compensate for an inclination angle of the aircraft on landing, in operation. The aircraft carrier ground vehicles may further be designed to allow taxiing and take-off of the aircraft. The invention is further directed to related aircraft carrier ground vehicle systems, which include several vehicles that are swarmed for landing an aircraft, as well as aircraft landing and take-off methods.

The aim is to provide a lightweight, inexpensive, and easy-to-install semi-underground unit that is unaffected by the live and dead loads of the upper floors of the building. [Solution] The semi-underground unit of the present invention consists of a factory-produced top cover plate, a residential unit or interior wall unit, a soil pressure reinforcement unit, and a retaining wall block body formed on-site. The top cover plate is provided with an entrance that connects to a stair cover unit connected to the underside of the building's floor. The residential unit or interior wall unit consists of a box-shaped lightweight steel frame formed of a structural seismic-resistant and reinforced structure such as a wall structure. The soil pressure reinforcement unit consists of a box-shaped lightweight steel frame formed of a structural seismic-resistant and reinforced structure such as a rigid frame structure and a wall structure that protrudes and opens to the ground surface. The retaining wall block body consists of a hollow box-shaped concrete wall whose upper surface protrudes and opens to the ground surface.

This utility model discloses a dual-exhaust extended ground-level ventilation system, belonging to the field of ground-level ventilation technology. It includes a building and a ditch located beneath the building. The front wall of the building is equipped with a wet curtain for air intake, and the rear wall is equipped with an exhaust fan for exhausting air outwards. The floor of the building is fitted with a perforated plate connected to the ditch. Exhaust fans for exhausting air outwards are installed at both ends of the ditch. This dual-exhaust extended ground-level ventilation system has the following advantages: dual-end exhaust, suitable for long-distance ditches: avoids the wind speed attenuation of single-end exhaust, making the airflow within the ditch more uniform; complementary double-layer airflow, eliminating ventilation dead zones: the main ventilation of the building covers the upper and middle activity areas, while the auxiliary ventilation of the ditch specifically removes accumulated waste gas from the ground, with superimposed double-pathways eliminating ventilation blind spots.

This invention relates to the field of transportation device technology, and discloses a multi-state transportation device and its state transition method that features automatic deployment triggered by a lift. The transportation device includes a main structure, deformable units movable relative to the main structure, and a movable support assembly associated with the deformable units. By applying a lifting force to the main structure, relative motion is created between the main structure and the deformable units, triggering the deformable units to exhibit a self-deploying tendency relative to the main structure under gravity, and to move in the deployment direction under constraint guidance. The deformable units drive the movable support assembly from a receiving position to a ground support position to support the main structure off the ground, thereby transforming the transportation device from a receiving state to an extended state. This invention utilizes lift triggering, gravity drive, and structural constraint guidance to achieve automatic deployment. Users can trigger state switching with a single lifting action, offering advantages such as simple operation, smooth deployment, good structural compatibility, and coordinated deployment of the left and right deformable units.

A door system (10) is provided with anomalous event detection functionality. The door system (10) has a side frame (12) extending in a vertical direction essentially orthogonal to a ground or floor plane, a barrier element (18) arranged to move in the side frame (12) between a closed position (B) in which a passage is covered and an open position (T) in which the passage is uncovered, a drive unit (32) adapted to move the barrier element (18), a control unit (36) configured to actuate the drive unit, and a sensor (20). The sensor (20) is configured to generate a detection signal indicative of presence or non-presence of a portion of the barrier element (18) in the side frame (12) and provide the detection signal to the control unit (36).

The utility model discloses a hook structure, including the fixed plate of fixed on the wall surface, the fixed plate is equipped with the hook body on the side of wall surface's back, the fixed plate is equipped with the pasting layer on the side of wall surface's face, the length of the fixed plate along the direction of perpendicular ground is L, the hook body is used for hanging the heavy object, the hook body includes the connecting portion, the highest point of connecting portion and the distance of the bottom end of fixed plate's projection length in the direction of perpendicular ground is H, wherein 18%L <= H <= 50%L. The utility model has the advantages of can even distribution stress, strengthen the bearing capacity and improve the back glue adhesion stability.

The application discloses a kind of super high-rise building floor decorative ground anti-cracking construction methods, can absorb the internal stress caused by different structure micro deformation, reduce the risk of decorative ground cracking, thereby reduce floor decorative ground repair frequency and cost;The construction method includes determining expansion joint position according to super high-rise building floor decorative ground anti-cracking construction design drawing;Elastic cushion layer is laid on the top surface of structure layer;In the top surface of elastic cushion layer, separate strip is set at the determined expansion joint position;Leveling layer is poured on the top surface of elastic cushion layer, and expansion joint is formed at the position of separate strip;After cleaning expansion joint, expansion joint material is filled to a certain height in expansion joint;Finishing layer is laid on the top surface of leveling layer;Finished expansion joint is installed in expansion joint and the like.

A drone flight collision avoidance device, belonging to the field of aircraft technology, addresses the problem that existing drone landing gears are mostly fixed rigid support structures, only suitable for flat, hard ground, and prone to tipping over or sinking on inclined, soft, or gravel surfaces. The invention includes an aircraft shell, with a first camera and a second camera fixedly installed on the side wall of the shell. A lifting structure is fixedly installed in the inner cavity at the bottom of the shell, and a sponge anti-slip plate is fixedly installed at the bottom of the lifting structure. This invention uses the second camera to identify ground conditions, and in conjunction with a retractable landing structure and balancing components, relies on a balance sensor to calibrate the levelness of the balancing platform in real time. This allows for the creation of a horizontal landing reference surface on uneven ground, significantly overcoming landing site limitations and effectively avoiding drone tipping and fuselage damage caused by tilted landings. It significantly improves landing adaptability and safety in complex outdoor environments.

The application discloses a high-level frame outer wall construction climbing platform and method based on a safe redundancy design, and the platform comprises a surrounding type climbing ladder unit, an anti-inclination positioning unit fixedly connected with the surrounding type climbing ladder unit, an anti-falling pulley assembly arranged at the top of the surrounding type climbing ladder unit and a double-drive safe walking unit; the double-drive system is formed by adopting a wheeled walking unit and a tracked walking unit, technical problems that a single form walking system defect directly leads to an inability to run in a sudden state are avoided, the fault tolerance of the system is improved by adopting two different forms of walking driving, and the reliability of the platform when walking is effectively ensured; in addition, the walking mechanism is designed at the top of the high-level frame structure, ground occupation caused by a positioning moving system in a traditional method is avoided, automatic displacement of the climbing platform is realized, and high-level frame outer wall construction efficiency is greatly improved.

This invention provides a method for measuring the position of ground equipment, a position measurement device, a position measurement program, and a position measurement marker that can accurately measure the positional relationship of ground equipment laid along railway tracks. [Solution] Position measurement method #100 is a method for measuring the position of ground equipment laid along a railway track based on moving images taken while moving along the railway track. Position measurement method #100 includes a position relationship measurement step #190 which measures the positional relationship between the railway track and the ground equipment based on railway track side and ground equipment side markers used to identify locations where the railway track and ground equipment are at the same position in the depth direction from the moving images. Image extraction step #150 extracts marker images in which the railway track side and ground equipment side markers are captured from the moving images. Position relationship measurement step #190 measures the positional relationship between the railway track and the ground equipment based on the marker images.

The utility model discloses a detachable and assembled goal, including two edge columns, and the opposite installation of edge column has the top frame, and the opposite installation of top frame has the support rod in two sides of tail end, and the opposite installation of edge column and top frame has the quick release mechanism, and the opposite installation of top frame and support rod has the interval adjusting mechanism, and the installation of anchor matching weight structure is connected with the ground surface layer of edge column. In the utility model, through quick release mechanism, edge column and top frame can be quickly disassembled and assembled, and through interval adjusting mechanism, the adjustment of the direction of support rod can be driven, thereby adapting to different use site requirements, improving practicality, through anchor matching weight structure, the stability of overall structure installation is increased, ground adhesion is increased, goal breakage caused by bad weather is prevented, and safety stability is improved.

This application relates to the field of children's playground technology and discloses a children's activity area based on a suspended walkway. The activity area includes a ground surface, a suspended walkway on the ground surface, and a movable house on the ground surface, located on one side of the suspended walkway. The movable house includes a single-story building with a second-story building on top. This children's activity area based on a suspended walkway, through the movable house, the first climbing frame inside the movable house, and the slide on one side of the suspended walkway, fully utilizes vertical space. The three-dimensional design of the activity area based on the suspended walkway allows for more diverse playground facilities within a limited ground area. The activity area features various playground facilities, providing children with more challenging and fun play experiences. The suspended walkway within the park enhances the interaction and integration with the natural environment.

A system and method for urban mobility assistance intended for integration into an urban environment. The system notifies or alerts users to potential obstacles in their path and guides them to a destination of interest. Assistance is provided by the detection via a support element worn by the user of an electromagnetic field generated by a conductive wire installed below ground level when receiving alternating current. The invention offers an efficient solution to the lack of adaptability and personalization in current assistance solutions for blind people, as it provides continuous and specific guidance based on environmental information and the user's needs.

The utility model relates to the technical field of building engineering discloses a kind of floor leveling expansion joint structure, including bottom plate, the top end of the bottom plate is fixedly connected with slide rail, the outer wall of the slide rail is slidably connected with two sliding blocks one, the top end of the sliding block one is slidably connected with support plate, the left side of the support plate is fixedly connected with two damper one, the left side of the damper one is fixedly connected with connecting plate, the outer wall of the damper one is equipped with spring one, the left side of the connecting plate is fixedly connected with damper two, the outer wall of the damper two is equipped with spring two, the similar side of two the damper two is fixedly connected with baffle, the outer wall of the connecting plate is provided with cleaning assembly for cleaning gap dust.The utility model can dynamically adapt the stress generated by expansion and contraction of floor tile under different working conditions, effectively reduce cracking, arching and other problems, maintain the stability of ground structure, and prolong the service life of floor tile.