55 results about "Lattice tower" patented technology

The invention belongs to the field of lattice tower prestressed cable construction, and particularly relates to a lattice tower prestressed cable penetrating method which is characterized in that an anchorage device support is arranged on a construction platform at the top of a lattice tower, an anchor ring, a backing ring and a steering wheel are sequentially arranged on the anchorage device support from top to bottom, and through holes in one-to-one correspondence with cable penetrating holes in the anchor ring are formed in the steering wheel; the through hole is a variable-diameter hole with the two ends large in hole diameter and the middle small in hole diameter, the inner hole wall of the through hole smoothly extends in the hole core direction, the first steel wire rope is restrained at the tower top and slowly droops, and a worker at the tower top pulls the first steel wire rope to control the steering wheel to move downwards to the corner position of the latticed column in a pipe cavity of the latticed column. The steel strand is matched with the hole wall or the hole edge of the through hole in the steering wheel in a surface contact mode, the situation that protruding radial shear force point positions exist due to point contact or line contact between the steel strand and the steering wheel is effectively avoided, and the steel strand is prevented from being fractured due to the influence of radial shear force.

The utility model provides a fragmented steel-concrete composite structure transition section for a lattice type tower, which comprises two groups of fragmented structures which are oppositely arranged, two ends of the two groups of fragmented structures are connected through connecting components, each fragmented structure comprises a combined cavity, an outer steel shell, an inner steel shell cylinder, a top steel plate and a bottom steel plate, the inner steel shell barrel is arranged on the inner side of the outer steel shell, the top steel plate and the bottom steel plate are arranged on the tops and the bottoms of the inner steel shell barrel and the outer steel shell respectively and welded to the tops and the bottoms of the inner steel shell barrel and the outer steel shell to form a cavity, lattice type tower frame corner columns communicated with the combined cavity are arranged at the bottom of the combined cavity, and a concrete pouring body is arranged in the combined cavity. And the concrete pouring body is filled in an inner cavity of the lattice type tower corner post. The structure is simple in transmission and clear in stress, the compression resistance of the transition section can be remarkably improved, meanwhile, the risk of buckling of the combined cavity can be avoided, and the phenomenon that stress is concentrated when the stress of the upper steel tower is transmitted to the lower lattice section to be transmitted can be effectively avoided.

The invention relates to the field of wind power facilities, and discloses a lattice type wind power tower and a construction method. The lattice type wind power tower comprises a first lattice section, a switching section and a second lattice section which are arranged from top to bottom, and the switching section is suitable for switching transition of the first lattice section and the second lattice section. Specifically, an adapter is used as a connection foundation, and a steering sleeve is used as a steering force guiding foundation of steel strands in corner column components in a first lattice section and a second lattice section; according to the connecting structure, the steps and the steering sleeve are fixedly configured, the hasp pieces are fixedly connected with the steel strand, at least two sets of steps and hasp pieces are correspondingly hasped, the steering part of the steel strand is located in the bending part of the steering sleeve, and therefore the purpose that the steel strand and the bending part are bent and arranged in a steering mode in a conformal mode is achieved. By means of the structure, steering slope changing between the two sections of the lattice tower can be achieved, prestress of the steel strands in the whole tower can be reasonably distributed, stress is prevented from being concentrated on the switching section, and the node design effectively meets the requirement for bearing capacity.

The utility model provides a latticed column deviation reinforcing component which comprises a deviation latticed column of a deep foundation pit latticed tower crane foundation and profile steel connecting rods connected with the deviation latticed column. Triangular box body connecting steel plates are arranged between the deviation latticed column and the profile steel connecting rods. And the triangular box body connecting steel plates are respectively welded with the profile steel connecting rods and the offset latticed columns. According to the utility model, the problem of deviation of the lattice column of the deep foundation pit lattice type tower crane foundation can be solved, the construction procedures can be reasonably arranged, the subsequent construction period is not influenced, and the safe use of the subsequent tower crane foundation can be ensured.

The invention discloses a three-stand-column prestress hollow interlayer steel pipe concrete lattice type wind power tower system which comprises a three-stand-column lattice tower, a switching section, a steel tower section, a cabin, a hub and a wind wheel. The three-stand-column lattice tower is connected with the steel tower section through the switching section and used for achieving load transmission between the steel tower section and the three-stand-column lattice tower; the structural integrity and stress balance of the whole tower system are guaranteed, the cabin and the wind wheel are installed through a hub, and the cabin is located at the upper end of the steel tower section. A hydraulic-spring composite driving system (oil pushes a piston plate and springs rebound) is adopted, so that the bidirectional telescopic buckle achieves the automatic locking function, a traditional bolt connection mode is completely changed, the tower section splicing efficiency is improved by 300% or above through the standardized assembly process of staggered placement, buckle pre-fixing and hydraulic locking, and the tower section splicing quality is improved. The installation time of a single node is shortened to 5 minutes from traditional 15 minutes.

The invention belongs to the technical field of lattice tower structure health detection, and relates to a lattice tower rod piece missing intelligent detection method based on multi-view three-dimensional reconstruction. According to the method, an adaptive feature matching algorithm fusing geometric features and texture descriptors is provided, camera pose estimation is optimized by constructing a global depth consistency scoring mechanism, and high-precision sparse point cloud reconstruction is realized; designing a depth map optimization strategy based on energy minimization, and effectively overcoming the interference of complex illumination and a low-texture environment on three-dimensional reconstruction in combination with density threshold filtering and geometric structure feature analysis; an ordered / disordered point cloud adaptive noise reduction method is innovatively provided, and noise robustness processing is realized through gradient constraint and covariance matrix eigenvalue analysis; and finally, an improved neighborhood radius adaptive registration algorithm is adopted, and a rod piece missing region is accurately identified through a significance scoring mechanism. The method remarkably improves the automation level and reliability of rod piece missing detection, and can be widely applied to structural health detection of the lattice tower.

The invention relates to the technical field of wind power tower structure design and construction, and discloses a modular assembly platform and a construction method thereof. The plurality of supporting legs are uniformly arranged in the circumferential direction of the central seat and are detachably connected with the central seat; the base is adjustably arranged at the top of the supporting leg in the length direction of the supporting leg and used for being connected with a corner post of a lattice section; the base is detachably connected with the corner posts; and the plurality of height adjusting pieces are uniformly arranged at the bottoms of the central seat and the supporting legs and are used for adjusting the levelness of the central seat and the supporting legs. The problems that when a lattice type tower is installed, time and labor are wasted and the installation efficiency is low in the mode that spare parts are hoisted and installed for multiple times are solved.

The invention discloses a structural tower suitable for a large wind turbine generator, which comprises a steel tower drum, a switching node and a lattice tower, the lattice tower comprises a foot expanding section, a straight section and a variable angle section for connecting the foot expanding section and the straight section, the straight section is positioned above a blade tip, and the foot expanding section is positioned below the blade tip; a prestressed cable bundle channel is formed in the variable-angle section in the axial direction of the variable-angle section, a smooth inward-convex structure facing the steering side is formed in the position, where the prestressed cable bundle steers, of the prestressed cable bundle channel, and the cross section, at the smooth inward-convex structure, of the prestressed cable bundle channel is a bell-shaped hole with one large end and the other small end; the small end of the bell-shaped hole is an arc section with the diameter larger than that of the prestressed cable bundle, the small end of the bell-shaped hole faces the steering direction of the prestressed cable bundle, and the shape of the bell-shaped hole is gradually reduced from the two ends of the smooth inward-protruding structure to the center hole, so that the smooth inward-protruding structure is formed. According to the application, the prestressed cable bundle can be controlled and uniformly steered, and the prestress loss is reduced.

The invention relates to a single pipe-lattice hybrid wind power generation tower transfer node and a construction method thereof.The single pipe-lattice hybrid wind power generation tower transfer node comprises a lattice tower section and a single pipe tower drum which are connected through an L-shaped transition section, and the L-shaped transition section comprises a single pipe tower drum connecting piece and a plurality of L-shaped transfer connecting pieces; the L-shaped conversion connecting pieces are evenly distributed on the outer wall of the single-pipe tower barrel connecting piece in the circumferential direction, each L-shaped conversion connecting piece comprises a uniform-section box beam, a variable-section box beam and a steel pipe which are connected in sequence, and each variable-section box beam is of an arch pressing structure. Compared with the prior art, transition between the lattice type tower section and the single-pipe tower section is achieved through the L-shaped transition section, the transportation difficulty is lowered, the field welding workload is reduced, stress concentration is avoided, and smooth transition of rigidity and strength is achieved. The joint is simple in structure, clear in force transmission, convenient and fast to construct and suitable for the conversion requirement of the high-altitude and high-power single tube-lattice hybrid wind power generation steel tower.

The utility model provides an assembly type transition section of a prestress lattice type tower. The assembly type transition section comprises a main barrel, lattice type corner columns and first connecting structures. The plurality of lattice type corner columns are mounted on the main cylinder body through first connecting structures; the first connecting structure comprises a cross brace, an inclined brace, a first inserting plate and a second inserting plate; one ends of the transverse support and the inclined support are fixedly connected with the main cylinder body, and the other ends of the transverse support and the inclined support are provided with slots; one end of the first inserting plate is fixedly inserted into the inserting groove in the transverse support, the second inserting plate is fixedly inserted into the inserting groove in the inclined support, and the other end of the first inserting plate and the other end of the second inserting plate are detachably connected with the lattice type corner column. Through the arrangement of the transverse supports and the inclined supports, the main cylinder body can be installed on the lattice type corner column, and through the disassembly and assembly of the first insertion plate and the second insertion plate, the transportation of the transition section can be facilitated.

The invention discloses a fan lattice tower optimization design system and method based on an improved genetic algorithm, and the system comprises a parameter input module which is used for receiving and preprocessing tower design parameters; the population initialization module is used for randomly generating a population and adapting to the change of the overall structure layer number of the tower by adopting a variable-length coding strategy; the finite element modeling and analysis module is used for constructing a parameterized finite element model for individuals of each population based on a finite element platform and performing finite element analysis; the algorithm optimization module is used for calculating the total cost and penalty term of each individual, and then taking the total cost of the tower as an optimization target, and using an improved genetic algorithm to complete optimization iteration; and the result output module is used for outputting an optimal individual parameter and a total cost optimal value when optimization iteration reaches the maximum evolutionary algebra or meets a convergence condition. The manufacturing cost of the tower can be remarkably reduced on the premise that constraint conditions such as strength, stability and frequency are met.

The invention discloses a segmented staggered wind power lattice type tower which comprises a steel tower drum, conversion nodes and a lattice type tower body, the lattice type tower body comprises a lattice type tower body upper section and a lattice type tower body lower section, the lattice type tower body upper section is located in the range above a blade tip, and the lattice type tower body lower section is located in the range below the blade tip; the lower end of the lattice type tower upper section is inserted into the lattice type tower lower section, the lattice type tower upper section and the lattice type tower lower section are connected through a conversion web member, and the lattice type tower upper section and the lattice type tower lower section are arranged in a rotating and staggered mode. The lattice type tower body is divided into the upper section and the lower section which are arranged in a staggered mode, so that the section of the tower body can be rapidly expanded below the blade tip, the bearing efficiency is improved, meanwhile, non-through tower columns provide conditions for applying prestress of different levels in a segmented mode, the section of the upper section of the tower body is small, large prestress is needed, and the section of the lower section of the tower body is large. Only small prestress is needed, the prestress is applied according to needs, and meanwhile the material consumption of the prestress cable and the tower column is saved.

The invention discloses a method and device for obtaining a three-dimensional model of a lattice tower foundation, and relates to the field of communication or other related fields, and the method comprises the steps: obtaining foundation type information, basic information, calculation information and geological exploration information corresponding to a target lattice tower foundation; determining an adaptive basic initial model according to the basic type information of the target lattice tower foundation; a display model of the target lattice tower foundation is established or updated according to the basic initial model and the basic information, and a calculation model of the target lattice tower foundation is established or updated according to the display model, the calculation information and the geological exploration information, so that a three-dimensional model of the target lattice tower foundation is obtained. According to the method, the three-dimensional modeling process is unified and simplified, the three-dimensional modeling time is shortened, the error rate is reduced, and the technical problems that in the prior art, in the modeling process of an existing lattice tower foundation, the default modeling parameters of the lattice tower foundation and the mutual relation of all components cannot be summarized and concluded, and parameterized rapid modeling cannot be achieved are solved.

The utility model discloses a five-way structure, a conversion section connecting structure comprising the five-way structure and a lattice type tower. The five-way structure comprises a first connector, a second connector, a third connector and a fourth connector. The first connector and the second connector are obliquely arranged at the top of the fourth connector, and the first connector is located above the second connector. The two third connectors are arranged on the lower portion of the fourth connector side by side, and an included angle exists between the two third connectors. Connecting seams between the connectors are integrally formed in a pouring mode, and connecting holes are formed in the connecting end faces of the connectors. The utility model has the characteristics of compact structure, convenience in disassembly and assembly, high reliability and the like, and is favorable for improving the convenience in installation and maintenance of the high-power wind generating set.

The invention relates to a telescopic lattice tower of a wind turbine, comprising at least a lower tower assembly, an upper tower assembly, and a lifting system for raising and lowering the upper tower assembly. The lifting system comprises at least one guide element, two guide frames, a stabilization system, and a plurality of temporarily deployable first strand jacks. Furthermore, the invention relates to a method for lifting a telescopic lattice tower according to the invention and the use of the telescopic lattice tower.

The invention relates to the field of lattice towers, in particular to an externally-wrapped reinforced corner column lattice tower suitable for a wind power supporting structure, which comprises N corner columns arranged along the height direction, lattice diagonal rod systems arranged between the adjacent corner columns, a bottom supporting structure for supporting the corner columns and a conversion section for connecting an upper wind power tower drum, each corner column comprises an outer pipe, an inner pipe, a prestressed steel strand arranged in the inner pipe and a concrete structure filled between the outer pipe and the inner pipe, and the two ends of the prestressed steel strand are anchored in the conversion section and the bottom supporting structure respectively. By adopting the technical scheme, the material consumption and the construction cost can be effectively reduced on the premise of ensuring the structural safety.

The invention discloses an optimal design method of a wind power concrete filled steel tube lattice type tower, which is applied to the wind power concrete filled steel tube lattice type tower, and the lattice type tower comprises a lattice section and a steel section arranged above the lattice section; the method comprises the steps that S1, the height of a lattice section and the height of a steel section are determined; s2, constructing a lattice segment initial model; s3, verifying whether the tower performance index of the lattice section initial model is qualified or not through a structural mechanics theory algorithm; s4, based on a finite element simulation analysis result, performing optimization design on the lattice segment initial model to obtain a lattice segment optimization model; and S5, on the basis of the lattice section optimization model and the height of the steel section, constructing a lattice type tower integrated model, calculating loads at the joints of all nodes of the lattice type tower integrated model under different working conditions through fan load calculation software, and checking whether optimization design meets design requirements or not. According to the method, the iterative optimization workload of fan load calculation software can be reduced, the calculation power demand is reduced, and the calculation period is shortened.

The application relates to a novel wind power supporting structure. A novel cast steel pipe node lattice wind power supporting structure comprises a pile foundation, a cast steel pipe node lattice tower, a tower conversion node and a steel tower drum which are sequentially connected in the height direction; the cast steel pipe node lattice tower is composed of a top layer tower section, a plurality of middle tower sections and a bottom layer tower section; the top layer tower section, the plurality of middle tower sections and the bottom layer tower section are respectively composed of lattice units with the same structure; the lattice unit comprises a plurality of support columns and column interconnecting rods; each support column is composed of a TT type node and a tower column; the column interconnecting rod comprises a diagonal rod and a horizontal rod; adjacent TT type nodes are connected through the horizontal rod; the upper end and the lower end of adjacent support columns are cross-connected through the diagonal rod. The cast steel pipe node lattice wind power supporting structure has high strength and bending stiffness, can effectively exert the mechanical properties of the material, reduce the construction difficulty on site, greatly shorten the construction period and reduce the cost.

The present application relates to the technical field of angle steel tower, and provides a multi-loop power transmission line angle steel lattice tower, which comprises a tower base, a positioning mechanism is fixedly connected to the top of the tower base, the positioning mechanism comprises a supporting positioning pile fixedly installed at the top of the tower base, a protective cover is fixedly connected to one side of the supporting positioning pile, a knob is movably connected to the outer wall of the protective cover, a worm is fixedly connected to the outer wall of the knob, and a transmission worm wheel is movably connected to the outer wall of the worm. By rotating the knob, the worm is rotated, the transmission worm wheel is rotated, the bidirectional screw rod is driven to rotate, the two movable blocks are moved along the movable grooves in opposite directions, the L-shaped supporting frame is driven to move, the two limiting blocks are inserted into the limiting grooves in the tower body respectively, and the tower base and the tower body are positioned and assembled conveniently, stably and quickly.

The utility model discloses a latticed column perpendicularity overrun reinforcing structure of a latticed tower crane foundation. The latticed column perpendicularity overrun reinforcing structure comprises a first reinforcing batten plate, a second reinforcing batten plate and reinforcing angle steel, one end of each first reinforcing batten plate is in lap joint with a batten plate of the latticed column, the other end of each first reinforcing batten plate extends in the inclination direction of the latticed column, and the pair of first reinforcing batten plates are symmetrically arranged on the two side faces of the latticed column; one ends of the pair of reinforcing angle steels are respectively lapped with the other ends of the pair of first reinforcing batten plates, and the second reinforcing batten plate is lapped between the other ends of the pair of reinforcing angle steels; the pair of reinforcing angle steel is vertically and symmetrically arranged on the inclined side of the latticed column, and the lower ends of the pair of reinforcing angle steel are fixed to the bottom base plate or the soil layer. The utility model relates to the technical field of building construction, and can solve the problems of construction period delay, cost increase and disordered construction plan caused by reselection of the position of a lattice tower crane foundation after the perpendicularity of a lattice column exceeds the limit in the prior art.

An apparatus for generating offshore wind employs shallow draft floats supporting a lattice tower with a wide base having a single-line anchoring providing passive yawing. The lattice structure supports a horizontal shaft at both ends of the shaft for rotating a rotor assembly. Mechanical energy from the rotor may be transferred to electrical generation equipment located at the base of the structure.

This application discloses a precise positioning and hoisting device for reusable lattice-type towers, comprising: a positioning frame with several I-shaped guide grooves on its upper surface; a connecting mechanism disposed on the positioning frame, including a movable support and a driving component for sliding the movable support within the guide grooves, the movable support being locked at a preset position by a locking component; a connecting flange fixed above the movable support, the connecting flange having the same specifications as the bottom flange of the corner column; and a support mechanism disposed on the positioning frame and having the same number of corner columns, the support mechanism including a first telescopic rod, one end of the first telescopic rod being hinged to the positioning frame and the other end being hinged to the pole body of the corner column, the first telescopic rod having a fixed telescopic length. This application can meet the stringent requirements of modern power systems for the rapid, precise, and non-destructive installation of reusable towers for temporary power supply.

The present invention discloses a three-column prestressed hollow sandwich concrete-filled steel tubular lattice type wind power tower system, which includes a three-column lattice tower, a transition section, a steel tower section, a nacelle, a hub and a wind turbine. The three-column lattice tower is connected to the steel tower section through the transition section, which is used to realize the load transfer between the steel tower section and the three-column lattice tower, ensuring the structural integrity and force balance of the entire tower system. The nacelle is installed with the wind turbine through the hub, and the nacelle is located at the upper end of the steel tower section. By adopting a hydraulic-spring composite drive system (oil pushing the piston plate + spring rebound), the present invention enables the two-way telescopic buckle to achieve an automatic locking function, completely changing the traditional bolt connection method. Through the standardized "staggered placement - buckle pre-fixation - hydraulic locking" assembly process, the splicing efficiency of the tower section is increased by more than 300%, and the installation time of a single node is shortened from the traditional 15 minutes to 5 minutes.

The application relates to the wind power technology field and discloses a lattice tower and a wind power generation device. The lattice tower comprises a plurality of pile bodies and a plurality of web members. The plurality of pile bodies are arranged around a preset direction, one end of the plurality of pile bodies is connected to a base, and the other end of the plurality of pile bodies is arranged away from the base. The pile body comprises a plurality of sub-piles which are sequentially spliced together, the sub-pile comprises a hollow pipe body, a concrete structure which is located in the pipe body and attached to the inner wall of the pipe body, and the pile body further comprises a prestressed structure which sequentially penetrates through the plurality of sub-piles. Each web member is connected between two adjacent pile bodies. The lattice tower and the wind power generation device provided by the application can be beneficial to saving production costs and improving production efficiency.

The invention discloses a yaw control method and device of a wind generating set, the yaw control method is applied to the wind generating set in the downwind direction, the wind generating set comprises a cabin and a lattice type tower, and the yaw control method comprises the steps that the wind speed of the environment where the wind generating set is located is obtained; and under the condition that the wind speed is larger than the preset wind speed, the cabin head direction of the cabin is made to be different from the tower column direction of each tower column in the lattice type tower frame by adjusting the yaw angle.

The utility model relates to a prestressed ribbed concrete filled steel tube cage type tower structure which comprises a plurality of sections of connected steel tube cages, and each section of steel tube cage comprises prestressed concrete steel tubes, metal rings, crossed steel tubes and transverse steel tubes. The prestressed concrete steel pipes are annularly arranged and are composed of steel pipes, stiffeners bonded to the inner side walls of the steel pipes, prestressed steel strand bundles penetrating through the axial directions of the steel pipes and self-compacting high-strength concrete. The multiple layers of metal rings are welded to the outer side of the prestressed concrete steel pipe, and vertical connecting flanges are arranged at the ends of the metal rings. The plurality of prestressed concrete steel pipes are connected into a cage-shaped structure by the crossed steel pipes and the transverse steel pipes through the connecting plates and the welding lug plates; wherein the steel pipe cage is formed by splicing at least two semi-arc-shaped prefabricated sections on site, splicing surfaces are fixed through vertical connecting flanges and connecting plates by bolts, and the bolt connecting positions are covered with welding layers to form a maintenance-free structure. The fatigue life of the whole tower is remarkably prolonged, and the tower is suitable for land high-wind-speed draught fans and offshore wind power scenes.

The utility model discloses a lattice type tower and wind generating set, the lattice type tower includes the multiple main support column of the circumferential interval arrangement along the middle axis of lattice type tower, and the multiple auxiliary support piece is arranged between the adjacent two main support column, the multiple main support column all includes the inclined column section, the turning section and the column section gradually setting from bottom to top and constitutes, the inclined column section gradually inclines from top to bottom to the direction close to the middle axis, the turning section is the circular arc shape gradually extending from top to bottom to the direction close to the middle axis, the column section is parallel with the middle axis, and the interval between the column section and the middle axis is less than the interval between the upper end of inclined column section and the middle axis. The utility model can make the overall height of lattice type tower improve greatly, solved the technical problem that the height was limited because the traditional lattice type tower was caused root to open bigger, and the economy and the applicable scene were improved significantly.

The application discloses a latticed tower variable-angle-section turning parameter optimization method and system minimizing prestress loss, belongs to the technical field of wind power generation latticed tower design, and comprises the following steps: a parameterized finite element model containing prestress tendon turning channel geometric characteristic parameters is established; at least one parameter is selected from the prestress tendon turning channel geometric characteristic parameters as an optimization design variable; a prestress loss calculation model is established, and the total amount of prestress loss is expressed as a function of the optimization design variable; an optimization mathematical model of the variable-angle-section turning parameter is established; the optimal design variable combination minimizing the objective function is searched within the constraint condition range; the structural performance of the turning area is verified to see whether the design requirement is met; if the verification is passed, the optimal variable-angle-section turning parameter combination is output; if the verification is not passed, the constraint condition or the optimization algorithm parameter is adjusted, and then the re-solution is returned until the verification is passed. The application can significantly reduce the prestress loss.

The invention discloses a lattice type tower and a wind turbine generator. The supporting frame is composed of at least three main supporting legs, a first supporting piece and a second supporting piece. Between any two adjacent main supporting legs, any first supporting piece is intersected and connected with at least two second supporting pieces at the middle part; meanwhile, the middle of any second supporting piece is intersected and connected with at least two first supporting pieces. The two sets of supporting pieces can form a complete metal structure through two schemes, the reliability of the structure is improved, and the possibility of connection failure or the problem of large maintenance workload in welding and bolt connection is reduced. The connection structure of all the nodes is greatly simplified, the supporting pieces are matched with the main supporting legs, the torsional rigidity of the tower is improved, and meanwhile the material cost and the manufacturing cost can be controlled. And meanwhile, the first supporting piece and the second supporting piece are mutually connected for multiple times in the middle, and the torsion resistance, the bending resistance and the like of the lattice type tower are enhanced through mutual supporting.

The invention discloses a lattice tower structure safety early warning system based on visual dynamic deformation monitoring, and the system comprises an image data processing module which collects an image of a rod piece of a lattice tower through a high-definition camera, extracts the edge features and shape features of the rod piece through an image processing program, compares the extracted features with a standard feature library, and carries out the early warning of the lattice tower structure. If the characteristics are inconsistent, plastic deformation, bending deformation or falling loss of the key component is judged, and when it is recognized that the rod piece is abnormal, an early warning signal is triggered; and the data processing module is used for acquiring a dynamic image sequence of multiple target points of the lattice tower through a binocular camera, and then calculating the three-dimensional coordinate change of each target point in the structural deformation key area related to the characteristics through a stereoscopic vision algorithm. According to the invention, through non-contact visual perception and data intelligent fusion, detection of the safety state of the lattice tower structure is completed, so that accurate diagnosis and operation and maintenance of damage are realized.