171 results about "Cable net" patented technology

The invention belongs to the technical field of photovoltaic supports, and particularly relates to a photovoltaic flexible support which comprises two edge supporting pieces, at least two assembly fixing cables, an assembly bearing cable, at least two wind-resistant frames and a ground anchor mechanism, and under the action of the wind-resistant frames, the assembly fixing cables and the assembly bearing cable can form a stable cable net structure. When a wind load acts on the cable net structure, force is transmitted to the wind-resistant frame through the assembly fixing cable, and then the wind-resistant frame distributes and transmits the force to the assembly bearing cable and the ground anchor mechanism, so that the wind resistance of the photovoltaic flexible support can be improved; therefore, the wind load is effectively dispersed and directly guided into the ground, the large-amplitude flutter and distortion of the cable net structure under the wind pressure are further inhibited, and the dynamic stability and the anti-fatigue performance of the whole photovoltaic flexible support are improved.

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.

The invention provides an umbrella-like floating platform and a tensioning method thereof. The umbrella-like floating platform and the tensioning method are used for solving the problem that an existing floating platform is large in weight and high in manufacturing cost. Comprising a platform ring and a pressed ring which are arranged in parallel, and a plurality of side stand column buoys are vertically connected between the platform ring and the pressed ring; a central stand column is further arranged at the central axis of the platform ring and the pressed ring, the bottom end of the central stand column extends out of the lower end face of the pressed ring, and a plurality of first inhaul cables and second inhaul cables are arranged between the pressed ring and the top end and the bottom end of the central stand column respectively. The first inhaul cables and the second inhaul cables are arranged in an annular array mode along the central axis of the central stand column. By arranging the inhaul cables, the inhaul cable tension steel structure is pressed, a tension-compression balanced prestressed cable net system is formed, under the condition that the stress performance of the whole structure is kept unchanged, the steel consumption of the platform is remarkably reduced, the purpose of the lightweight structure is achieved, and then the manufacturing cost is reduced.

The invention discloses a structure feature extraction and model correction system fusing convolution and a self-attention mechanism, relates to the technical field of structure engineering information, and aims at solving the problem that the structure feature extraction and model correction of a cable net structure can be realized by introducing a convolution-self-attention fusion mechanism and a double-domain consistency constraint optimization model in the whole process of cable net structure modeling, feature extraction and parameter correction. And the precision dynamic correction from the finite element simulation data to the actual measurement response data is realized. The output of the finite element modeling subsystem is used as a multilayer objective function, after the principal component screening subsystem extracts a sensitivity principal component, the system extracts a local correlation feature by using a convolutional neural network in a feature extraction stage, and then captures a global dependency feature by a self-attention mechanism, so that the model can pay attention to the micro-scale response of a local structure and also can pay attention to the global dependency feature. And the overall dynamic mode can be identified. Compared with a traditional mode, the disturbance consistency constraint and adversarial training mechanism is introduced, so that the network can still keep stable output under input disturbance.

The invention discloses a multi-energy complementary ocean floating type power generation system which comprises a floating type wind power platform, a wave energy power generation device, a floating type photovoltaic platform array and a mooring device, and the floating type wind power platform is used for supporting and installing a wind generating set; the wave energy power generation device is arranged on the periphery of the floating type wind power platform, so that a protection water area is formed between the wave energy power generation device and the floating type wind power platform; the floating type photovoltaic platform array is arranged in a protection water area; according to the mooring device, the anchoring foundation, the underwater buoys, the main mooring cable and the branch mooring cables are used for constructing a mooring cable net, the floating type wind power platform, the wave energy power generation device and the floating type photovoltaic platform array are moored in one mooring cable net in a centralized mode, and by sharing the anchoring foundation and the main mooring cable, the number of anchor points and the total using amount of mooring materials are greatly reduced; the mooring structure is simplified, the manufacturing and mounting cost is reduced, and meanwhile the energy output efficiency of the whole system is improved.

The utility model discloses a flexible photovoltaic support wind-resistant stabilizing system in the technical field of photovoltaic power generation, which comprises an assembly cable and a bearing cable, a plurality of photovoltaic assemblies are mounted at the tops of the assembly cable and the bearing cable, and a plurality of side anchor piles are connected to the two ends of the assembly cable and the bearing cable. Side beams are connected to the sides, close to the left end side anchor pile, of the assembly cable and the bearing cable, side columns are connected to the sides, close to the right end side anchor pile, of the assembly cable and the bearing cable, a triangular support is arranged between the assembly cable and the bearing cable, and an upper wind-resistant cable and a lower wind-resistant cable are arranged in the middle and at the bottom of the triangular support correspondingly. And a V-shaped support is arranged between the upper wind-resistant cable and the lower wind-resistant cable. According to the utility model, through cooperative arrangement of the assembly cables, the bearing cables, the triangular supports, the upper wind-resistant cables, the V-shaped supports and the lower wind-resistant cables, the support system forms a bidirectional cable net structure, the torsional rigidity of the flexible photovoltaic support structure is improved, and the flexible support structure can be effectively prevented from being subjected to torsional damage under the action of wind load.

The invention relates to the technical field of cable-supported grid structures, and discloses a permanent cable net support hoisting method which comprises the following steps: hoisting a cable net to an initial mounting configuration; applying a pull-down force to the cable net through at least one measure cable; the inclination angles of the radial steel beams relative to the horizontal plane are changed by multiple times, and loads are applied to the radial cables in the cable net by the heat by multiple times; after the load is applied each time, the cable force of the measure cable is dynamically adjusted, so that the configuration of the radial cable is matched with a preset supporting rod or flying column connecting point, and connection is completed; and after all the connecting points are connected, the measure cables are dismantled, and final shape finding of the radial cables is completed. The invention aims to provide a construction method for mounting an upper steel structure on a flexible cable net based on load superposition and a mode of dynamically adjusting a pull-down tool cable, and solves the problem that a plurality of support radial units complete shape finding under the control of a single pull-down tool cable.

The invention provides a multi-stage combination automatic optimization method for a satellite three-dimensional cable network path, and the method comprises the steps: judging the membership of a cable binding support, a connector and a cabin plate through reading a satellite three-dimensional satellite model, and defining the attributes of a cabin penetrating hole and a cross-plate connection point; constructing a three-layer information table of a cable network, a cable bundle and a cable branch; selecting the longest different plate / same plate branch as a main branch according to cabin plates at the head end and the tail end of the branch; decomposing stage by stage according to the distribution of main and branch cabin plates, and performing path optimization by adopting a plate path optimization algorithm based on a Floyd algorithm, an intra-region path optimization algorithm and a region path optimization algorithm; the slave branch selects the nearest access point for optimization based on the main branch path; and circularly processing all the cable bundles to complete the path planning of the whole cable network. Therefore, automatic optimization of the three-dimensional cable network path of the satellite deck is realized, the problems of low efficiency and poor quality of manual design of a general module are solved, and the method is adaptive to a whole satellite and a multi-deck satellite with a single / multi-plane deck and has universality.

The invention discloses an active turbulent flow type sand blocking system. The active turbulent flow type sand blocking system comprises a first turbulent flow belt, wherein the first turbulent flow belt comprises a first supporting column, a first cable net and a first wind resistance plate; the plurality of first supporting columns are arranged side by side into a plurality of rows and are distributed at intervals; the first cable net is connected between every two adjacent first supporting columns in each row; and a plurality of first wind resistance plates are arranged on each row of first cable nets, and the plurality of first wind resistance plates on each row of first cable nets are distributed between the adjacent first supporting columns at intervals. According to the active turbulent flow type sand blocking system, the turbulent flow field is constructed and formed through point vortexes formed at all the wind blocking plates, the turbulent flow field is used for achieving active turbulent flow on wind-sand flow, macroscopic ordered kinetic energy efficient dissipation is conducted on the wind-sand flow, and the purposes of effective interception and sedimentation are achieved.

This invention relates to the field of shaking table testing technology and discloses an electromagnetic shock protection device suitable for large-scale shaking table tests. It includes multiple support columns spaced along the outer perimeter of the shaking table and a surrounding arresting cable net assembly. The support columns are equipped with pulley assemblies. The surrounding arresting cable net assembly includes steel cables and at least one set of electromagnetic arresting assemblies. The steel cables are wound around the pulley assemblies, and the ends of the steel cables are connected to the electromagnetic arresting assemblies. The electromagnetic arresting assemblies include a spool and a generator connected to the spool. The steel cables are connected to the spool, and the generator is electrically connected to a control device. The control device controls the damping force on the steel cables by adjusting the excitation current of the generator. This invention aims to solve the problems of existing mechanical or hydraulic arresting systems, which suffer from slow response and inability to adjust damping force in real time, resulting in a harsh shock protection process, high peak force, and potential secondary damage.

The invention belongs to the technical field of flexible photovoltaic supports, and particularly relates to a long-span photovoltaic flexible support which comprises two edge supporting pieces, at least two assembly fixing cables, an assembly bearing cable, a plurality of wind-resistant frames and a plurality of stable anchoring mechanisms. Due to the fact that the two ends of the assembly bearing cable are fixed to the two edge supporting pieces respectively, under the action of gravity, the middle of the assembly bearing cable can droop, the whole assembly bearing cable has a certain curvature, and the length of each wind-resistant frame is configured to be matched with a natural droop curve of the assembly bearing cable. Therefore, wind loads can be transmitted downwards more evenly and more efficiently through the wind-resistant frames, under the cooperation effect of the stable anchoring mechanisms and the wind-resistant frames, the bearing capacity of the whole cable net structure can be improved, and the large-span arrangement requirement is met.

The utility model provides an angle-adjustable roof cable net photovoltaic support system, which comprises a photovoltaic panel, high transverse cables, low transverse cables, high longitudinal cables and low longitudinal cables, and is characterized in that the two ends of the high transverse cables and the two ends of the low transverse cables are connected to a parapet wall through transverse adjusting devices; the high longitudinal cables and the low longitudinal cables are connected to the parapet wall through longitudinal adjusting devices, photovoltaic panels are obliquely installed between the adjacent high transverse cables and low transverse cables, the high longitudinal cables and the low longitudinal cables are perpendicular to the high transverse cables and the low transverse cables, and cross buckles are arranged at the crossed positions of the high longitudinal cables and the high transverse cables. A cross-shaped buckle is arranged at the crossed position of the low longitudinal cable and the low transverse cable, the high longitudinal cable is located below the high transverse cable, and the low longitudinal cable is located below the low transverse cable. The solar photovoltaic support is scientific and reasonable in structural design, stable in supporting, small in influence on a house body, high in practicability, capable of making adaptive changes according to the illumination incident angle, capable of improving the sunlight receiving rate of a photovoltaic panel and high in power generation efficiency.

The utility model relates to the technical field of noise control, in particular to a cable-supported sound insulation barrier. The sound insulation screen comprises side sound insulation screens arranged on the two sides of a road and a bridge and further comprises a top sound insulation screen arranged above the road and the bridge, the top sound insulation screen comprises a bearing cable net, a main frame, side frames and sound insulation plates, the main frame comprises main stand columns and main beams, and the main stand columns are arranged in the middle of the road and the bridge at intervals in the longitudinal direction of the road and the bridge. The girders are fixedly arranged at the upper parts of the main upright posts along the longitudinal direction of the road bridge; the side frame comprises side stand columns and side beams, the side stand columns are fixedly arranged on the edges of a road bridge at intervals in the longitudinal direction of the road bridge, and the side beams are fixedly arranged on the tops of the side stand columns in the longitudinal direction of the road bridge. The bearing cable net comprises a plurality of main inhaul cables, the main inhaul cables roughly extend in the transverse direction of the road bridge, the two ends of each main inhaul cable are fixed to the corresponding main beam and the corresponding edge beam respectively, the main inhaul cables are arranged at intervals in the longitudinal direction of the road bridge, and the sound insulation plates are arranged on the bearing cable net. The method can be widely applied to noise control projects in the traffic and transportation fields such as highways, railways, subways and high-speed rails.

A gas storage reservoir, an energy storage device, and a control method and a mounting method for the gas storage reservoir. An inner foundation structure surrounds the outer side of a ground film; an outer foundation structure surrounds the outer side of the inner foundation structure; the edge of an inner film is fixed to the inner foundation structure; an inner cable net is arranged on the outer surface of the inner film; an accommodating cavity is defined between the inner film and the ground film, and the inner film comprises a metal layer; an outer film structure covers the outside of the inner film structure; the outer film structure comprises an outer film and an outer cable net an interlayer cavity is defined between the outer film and the inner film; an air supply device is configured to inflate the interlayer cavity.

The invention belongs to the field of construction hoists, and provides an anti-hanging cable arm for a construction hoist, which comprises an arm body, a connecting rod device, a cable net sleeve, a force adjusting device, a clamping device and a limit switch, the arm body is of a cavity structure; the connecting rod device is hinged and fixed on the arm body through a shaft or a bolt and can rotate around a hinge point; a cable net sleeve is installed at one end of the connecting rod device, the other end of the connecting rod device is connected with the arm body through a force adjusting device, and when the connecting rod device rotates, the end of the connecting rod device acts to trigger a limiting switch installed on the arm body. The clamping device is installed in the cavity of the arm body and used for clamping a cable arranged in the arm body in a penetrating mode. The device can effectively solve the safety problems of cable snapping, structural deformation, cage outage and the like caused by interference with a building or a scaffold in the cable running process, and the running safety and the operation continuity of the construction hoist are guaranteed.

The invention discloses a cable net structure prestress correction method and system based on multi-experiment sensitivity, and relates to the technical field of structural engineering and structural health monitoring. A sensitivity matrix is approximately constructed through a finite difference method, and construction of the sensitivity matrix is completed in combination with multi-working-condition displacement data; meanwhile, a parameter-aware Tikhonov regularization method is introduced to suppress the ill-conditioned error amplification problem, and self-adaptive step length optimization is realized by adopting left-one-out cross validation (LOOCV), so that the convergence efficiency of prestress correction is effectively improved. The method is not only suitable for a pre-stress identification scene of a cable net antenna, but also can be extensively applied to multiple fields such as large-span space structures, bridge engineering and civil engineering health monitoring, and provides effective technical support for parameter identification and finite element model correction requirements related to complex coupling structures in the fields; and the method has very wide application range and practical value.

The present application relates to the technical field of cable traction, and particularly relates to a power plant electrical engineering cable stay construction tool. The tool comprises a shell, two driving rings which are both slidingly and rotatably connected in the shell, an inner rotating ring which is rotatably connected to one of the driving rings, a cable net which is fixed to the shell, and a fastener which is fixed between the two driving rings. The two driving rings respectively drive the two sides of the fastener to move, so that the diameter of the circle in which the axis of the fastener is located gradually decreases, the cable net is subjected to a circumferential clamping force, the clamping force of the cable net on the cable is further strengthened, the stable state between the cable net and the cable is maintained, the probability of relative sliding between the cable net and the cable is reduced, and the efficiency of pulling the cable is ensured, and the abrasion of the cable skin is reduced.

A cable truss, including upper chord cable, lower chord cable, cable clamp, cable clamp support arm, cable end connecting block; the two ends of the cable clamp support arm are respectively provided with a cable clamp, the cable clamp is a cylindrical structure as a whole, which is composed of upper spiral body, middle spiral body and lower spiral body, the joint of the upper spiral body and the middle spiral body is provided with an upper chord cable through hole, and the joint of the middle spiral body and the lower spiral body is provided with a lower chord cable through hole; a plurality of telescopic locking pin shafts are arranged in the upper spiral body and the lower spiral body in the vertical direction, the middle spiral body is provided with locking pin shaft insertion holes corresponding to the locking pin shafts, and the locking pin shafts are inserted and matched with the locking pin shaft insertion holes. The application solves the design problem of the cable net node, reduces the adverse effect of the unbalanced force between the cable nets on the overall structure, increases the force rationality of the node and the safety of the whole cable net, reduces the processing and manufacturing cost and the construction difficulty, and can be applied to the "sky round place" structure of the "Dream of Red Mansions" drama fantasy garden engineering.

The utility model provides a roof photovoltaic cable net support device with windproof and damping functions, which comprises transverse cables, longitudinal cables, stabilizing devices and photovoltaic panels, a plurality of transverse cables are parallelly mounted between parapet walls, the transverse cables are arranged in pairs, the transverse cables and the longitudinal cables jointly form a photovoltaic cable net, the photovoltaic panels are fixedly mounted between each pair of transverse cables, and the stabilizing devices are arranged between the transverse cables and the longitudinal cables. The longitudinal cables are parallelly installed between the parapet walls at equal intervals, the longitudinal cables are perpendicular to the transverse cables, the transverse cables are located above the longitudinal cables, and stabilizing devices are arranged at the crossed positions of the transverse cables and the longitudinal cables. The photovoltaic cable net is scientific and reasonable in structural design, simple and convenient to install, capable of flexibly adjusting the height of the photovoltaic cable net, capable of effectively improving wind resistance and vibration resistance, capable of reducing damage to photovoltaic panels and capable of being used and popularized.

The invention provides a carrier rocket cable network beam splitting data processing method, device and equipment, belongs to the technical field of rocket manufacturing, and solves the problems of unreasonable layout, poor assembly compatibility and incapability of dynamically responding to system change in carrier rocket cable beam splitting design. The method comprises the following steps: acquiring rocket appearance data and cabin section layout data; analyzing and processing the rocket appearance data and the cabin section layout data to obtain spatial constraint data; determining a trunk line path according to the spatial constraint data; according to the cabin section layout data and the main line path, determining segmented current data; determining cable line diameter data according to the segmented current data; and determining rocket cable beam splitting data according to the cabin section layout data and the cable wire diameter data. According to the scheme, the layout reliability is improved, the space utilization rate is increased, and the electrical stability of the rocket is guaranteed.

The application discloses a double-layer annular deployable perimeter truss with a terminal self-locking function, which comprises a ring-shaped perimeter truss formed by connecting a plurality of double-layer arc-shaped scissor components and a driving mechanism for driving the ring-shaped perimeter truss to deploy or contract, wherein the connecting starting end and the connecting ending end of the ring-shaped perimeter truss are provided with self-locking mechanisms, and the double-layer arc-shaped scissor component is hinged by a first single-layer arc-shaped scissor component and a second single-layer arc-shaped scissor component. The deployable mechanism has good load capacity and rigidity performance, and can meet the application requirements of a perimeter truss of a large-scale deployable cable net antenna in space.

The present application relates to a kind of double fishbone butt type daylighting roof structure and its construction method, the roof structure includes: the fishbone type bottom framework that is horizontally fixed between two foundation components and is inclined in the middle horizontal two ends, is spliced into diamond grid by multiple lower ridge bones, bottom bone is connected in each diamond cell, bottom bone extends along the direction of two foundation components connecting line and is fixed between a pair of diagonal of diamond cell;Top framework is spliced by multiple upper ridge bones for glass panel fixed, which is matched with the shape of bottom framework;Support assembly, including several support seats distributed between bottom framework and top framework;Cable net, including several cables cross tied under bottom framework;Stand column assembly, including several stand columns, the lower end of stand column is connected with the column of cable that is cross set, the upper end of stand column is hinged to bottom framework;Roof panel, including several glass panels, for being installed on top framework.The present application is more prominent in the premise of guaranteeing structural strength, with visual impact effect.

The application discloses a hoisting equipment for construction of a building ring-shooting type steel net support assembly, which comprises a plurality of inhaul cables, a plurality of ring cables, a plurality of first node locks, a plurality of lifting lugs, a plurality of second node locks, a plurality of component force inhaul cables and a plurality of third node locks, the plurality of lifting lugs are all installed on top of the corresponding first node locks, a conical shell operation platform is arranged on top of the uppermost ring cable, the top end of the conical shell operation platform is symmetrically provided with a sling, a lifting appliance is fixedly installed on each group of slings, and a guide pipe and other structures are arranged in the hoisting process, so that the stability of the stand column in the hoisting process is maintained, the stand column can be conveniently inserted during subsequent erection of the conical shell formwork, the ring-shooting type is fully and uniformly stressed, the support performance is ensured, an extrusion frame and other components are arranged, the ring cable can be kept in a sufficient prestress during hoisting and installation, and the ring-shooting type cable net is kept in a stable working state under cooperation of the self weight.

The invention discloses a distributed reconfigurable wiring method, which specifically comprises the following steps of: 1, extending signal and power output to a plurality of positions in a spacecraft structure by taking an integrated electronic and power supply controller as a center and adopting a structure embedded FPC (Flexible Printed Circuit) mode for arranging a switching PCB (Printed Circuit Board) / switching cable; step 2, connecting the signal and the power to each single machine in a local area through a switching PCB / switching cable; 3, extracting required signals according to the requirement of a spacecraft local area arrangement single machine to form a switching PCB / switching line input; step 4, selecting an output connector and a node definition of the switching PCB / switching cable according to a local wiring optimization result; and 5, determining the design of the local cable network. The space is saved, the weight is optimized, the anti-interference performance is enhanced, and the electromagnetic compatibility optimization is more convenient.

The invention provides a satellite cable network weight reduction method and a satellite, and the method comprises the steps: S1, carrying out the optimization of single-machine layout, and enabling the layout spacing between single-machine devices in mutual connection to be within a preset range; step S2, optimizing the cable network contact table, including dividing preset high-power contacts and signal contacts into different electric connectors to respectively form a power electric connector and a signal electric connector; selecting a wire gauge according to the contact current value; breakpoint processing is carried out on the cable connection relation forming the closed net-shaped structure, and contacts bypassed by a path are disconnected and converted into a scattered line or switching module form; s3, telemetering and remote control signals are transmitted in a wireless transmission mode instead of a cable; and S4, replacing a conventional cable with an optical fiber, and adjusting the communication capacity, the cross sectional area and the weight of the optical fiber.

The invention discloses an anti-collapse pneumatic membrane structure, and relates to the field of building structure design, the anti-collapse pneumatic membrane structure comprises: a mold body, the mold body is provided with an additional cable net; the stiff reinforcing cable pieces are arranged on the main stress paths of the die body; the stiff reinforcing cable piece is a telescopic rod, and when the die body is inflated and formed, the stiff reinforcing cable piece is in a stretched state. By the adoption of the scheme, continuous collapse of the pneumatic membrane structure can be effectively prevented, and structural safety is guaranteed.

The application discloses a light cable net film airship main gas bag and a manufacturing method. The steps for simulating and analyzing set two-dimensional generatrix and determining the arrangement position of the circumferential reinforcing rib include: starting from the quality point of the fixed maximum cross section circumferential position, obtaining the shape after deformation, and then obtaining the quality point with the maximum transverse strain, which is the obtained arc length position of the circumferential reinforcing rib; the quality point is fixed in the next calculation to continue segmentation until the positions of the set number of circumferential reinforcing ribs are completed. The steps for determining the bulge shape after being jointly constrained by the meridian reinforcing rib and the circumferential reinforcing rib include: according to the reinforcing rib position, the reinforcing rib elastic modulus and the spherical membrane elastic modulus, simulating and calculating the spherical membrane surface, and under the condition that the airship internal and external pressure difference is a set value, the three-dimensional shape of each small bulge. The application solves the problem that it is difficult to design a polyethylene film airship main gas bag.

The invention discloses a high-rise building cable-stayed corridor and concave cable net skirt curtain wall structure and a construction method. The structure comprises a frame core tube, an upper corridor frame, a lower corridor frame, a skirt structure and a glass curtain wall. The two symmetrical frame core tubes are arranged, the upper corridor frame and the lower corridor frame are arranged between the two frame core tubes in parallel, and the upper corridor frame, the lower corridor frame and the frame core tubes are connected in a hinged mode. The upper-lower double-corridor structure system is innovatively provided for the special requirement of a large-span building for space permeability, the upper-lower double-corridor structure system is arranged between the upper-lower double-corridor structure system, the upper-lower double-corridor structure system is arranged between the upper-lower double-corridor structure system and the lower-upper double-corridor structure system, and the upper-lower double-corridor structure system is arranged between the upper-lower double-corridor structure system and the lower-lower double-corridor structure system. A super-large-span column-free shared space is formed, the requirement of people for a high-position space is met, and excellent space experience and visual effect are created.

The utility model provides an adjustable cable net for an inflatable film building, and relates to the technical field of air film building equipment. Comprising two cable net mounting plates, the bottoms of the two cable net mounting plates are each provided with two bottom supporting rods, by arranging the cable net mounting plates, cable net mounting adjusting rods and adjusting connecting pieces, follow-up mounting operation of other positions is carried out, second positioning bolts are used for reinforcing treatment when the whole is connected with a mounting site, and the mounting efficiency is improved. The two cable net mounting plates are reinforced when being connected through the top connecting rods, meanwhile, the cable net mounting adjusting rods at the bottom are matched for connection, auxiliary operation of electrical equipment is not used for the whole structure, the whole mounting and using cost is saved, and the cable net mounting plates, the cable net mounting adjusting rods and the adjusting connecting pieces are arranged, so that the overall mounting and using cost is reduced; and during use, the mounting position of the adjusting connecting piece can be conveniently adjusted, the connecting cable net in the cable net mounting adjusting rod can be conveniently replaced and adjusted, and the use flexibility of the whole equipment is improved.

The invention provides a cable network grounding research and judgment system and method based on topological transient characteristics, and the system carries out the research and judgment of a cable network grounding fault based on the transient zero-sequence current characteristics of a cable network. Transient zero-sequence current direction characteristics of a ground fault are converted into topological transient characteristics based on topology and amplitude comparison, the research and judgment process of the research and judgment method is triggered by a zero-sequence voltage abrupt change event of a bus, high-speed, synchronous and short-window acquisition is performed in a sampling process, then the transient amplitude in a first half wave is calculated, and topological characteristics are analyzed; according to the technical scheme, the method is specially used for capturing the earth fault instant electromagnetic transient process, and the problem that the accuracy of a transient signal positioning method at the present stage is not high can be solved.