42results about How to "Improve layout accuracy" patented technology

The invention relates to a diamond grinding material sequential arraying system and a method, belonging to the field of grinding material and tool manufacturing. The system comprises a cylinder sleeve (3) and a piston (4). The piston (4) which can move up and down is arranged in the cylinder sleeve by a piston rod (1), the cylinder sleeve is sealed with the piston by a sealing ring (5), an elastic plate (6) is fixed at the lower end face of the cylinder sleeve by a screw (7) and a pressing plate (8), and stepped holes are sequentially arrayed in the elastic plate. The system further comprises a worktable (14) and a supporting plate (12) arranged on the worktable (14) by a magnet block (13). With low cost and easy popularization, the system and the method can effectively, accurately and sequentially array and distribute diamond grinding materials.

The invention discloses a bridge formwork intelligent design method based on BIM, and belongs to the field of BIM bridges, and comprises the following steps: 1) preliminary design: determining a bridge scheme and overall structure concepts, such as arrangement of a bridge plane, a vertical surface and a cross section, by professionals; and 2) technical design: carrying out integral and local structure refinement processing on the bridge scheme determined in the preliminary design. The bridge formwork intelligent design method provided by the invention has a powerful rapid modeling function. Abridge three-dimensional model can be quickly created according to a CAD construction drawing. The problem that traditional two-dimensional design expression is not perfect, visual and clear is solved, through design conflict analysis, possible problems in the bridge construction process are found in advance and solved in advance, the traditional management thought is changed, namely, passive management of a waiting problem is converted into active management of an active discovery problem, and the working efficiency is improved.

The present disclosure illustrates a circuit layout method for printed circuit board which is adapted for an electronic device. The circuit layout method includes the following steps. A parameters configuration interface is provided for receiving corresponding stack-up parameters and a plurality of layout parameters. A radio frequency layer, a first keep out layer, and a reference layer are determined based on the stack-up parameters. The first keep-out layer is placed between the radio frequency layer having a first signal trace disposed thereon and the reference layer. A first keep-out region on the first keep-out layer is formed in corresponding to the first signal trace. Circuit layouts disposed inside the first keep-out region are removed. Consequently, the corresponding keep-out region may be automatically generated in accordance to the signal requirements of the signal trace while designing the circuit layout thereby increase circuit layout quality and efficiency thereof.

The invention relates to the technical field of building design, in particular to a building space layout method and device and electronic equipment, the layout method comprises the steps that building planning data and target attribute information of each position point of a target building space are acquired, and the building planning data comprises geometric information and attribute information of each function partition; all the function partitions are arranged in the target building space, and at least one layout combination is obtained; and based on the building planning data corresponding to each function partition in each layout combination and the target attribute information of each position point, a target layout of each function partition in a target layout combination is determined. According to the invention, the layout of each function partition in the target building space is automatically performed to obtain at least one layout combination, and the obtained at least one layout combination is screened to determine the target layout of each function partition in the target layout combination, so that the automatic layout of the building space can be realized, and the efficiency and the accuracy of the layout are improved.

The invention relates to the technical field of building construction, and discloses a method for arranging high-precision steel bars of linear bearing platform type components based on a BIM technology. The method mainly comprises: extracting surface parameters of the linear bearing platform type component, dividing all steel bars into different types according to different space positions, and obtaining an initial dot matrix or model line on an initial offset surface according to diameter parameters, arrangement interval parameters and protective layer thickness of all types of steel bars; performing model line array offset or dot matrix offset along the longitudinal direction to obtain a steel bar model line array, and finally generating a steel bar model. According to the method, accurate positioning and self-adaptive arrangement of the steel bars in the linear bearing platform type component are achieved through computer programming, internal collision of the steel bars is avoided, and steel bar entities are rapidly generated in batches. The problems that in existing deepening design, linear bearing platform type components are low in arrangement accuracy and disordered in rule are solved. And meanwhile, the method can be used for technical disclosure of field construction and has the advantages of improving machining precision and construction efficiency and the like.

The embodiment of the invention discloses an assembly type building based stair embedded part automatic generation method, device and equipment as well as a computer readable storage medium, wherein the method comprises the following steps of positioning a circle center position of a pin key reserved hole by setting a distance between a circle center of the pin key reserved hole and a flat plate section side and a distance between the circle center of the pin key reserved hole and a horizontal edge far away from the stair gravity center in advance, determining the position of the pin key reserved hole by presetting a diameter of the pin key reserved hole and the thickness of a flat plate section, then producing a U-shaped structure by taking a preset parameter as an arc length and a presetheight as a perpendicular line section length between the two endpoints of the arc length along in a thickness direction of the flat plate section, moving the U-shaped structure to a preset embeddingdistance thereof from the surface of the flat plate section, and thus automatically generating a pin key reinforcing rib of the pin key reserved hole in the stair BIM (Building Information Modeling)map. The application greatly improves the efficiency of arranging the pin key reserved hole of a stair in a stair component, improves the arrangement accuracy of a stair embedded part and thus is beneficial to improving the construction efficiency and the construction accuracy of the whole building project engineering.

The invention relates to the technical field of laying a wire on an interlayer of laminated glass, particularly provides a device of laying a wire of complex pattern on the interlayer of laminated glass, and also provides a method of laying a wire on the interlayer of laminated glass. The device comprises a fixed seat, a wire installation mechanism, a lifting mechanism and a wiring mechanism. The wiring mechanism comprises a heating bracket, a heating device, a wiring head, a limiting bracket, a limiting rod and a limiting roller. In a wire laying process, the heating device heats the wiring head, and the undersurface of the wiring head slides on the interlayer. According to the invention, the wire is laid on the interlayer through sliding of the undersurface of the wiring head on the interlayer, in the way of sliding wire laying, the wire can be laid on the interlayer continuously and stably, the incidental circumstance of incomplete press-in of the wire into the interlayer cannot occur, waves and the like cannot be generated, the wire laying precision is improved, and the production efficiency is enhanced.

The invention relates to the field of blasting, and particularly relates to a rotary measuring scale device capable of realizing accurate hole distribution in blasting construction and a hole distribution method. The rotary measuring scale device comprises a fixing module, a distance positioning module, an angle positioning module and a lifting module, wherein the fixing module is positioned at the bottom of the whole device; the bottom of the lifting module is connected with the fixing module; the top of the lifting module is connected with the angle positioning module; and the distance positioning module is arranged on the angle positioning module. By utilizing a polar coordinate axis principle, on the basis of determining a tunnel center line, a polar coordinate axis origin is set, thedevice is fixed, and the position of a blast hole is determined through a telescopic steel tape and an angle measuring device, so that the field construction can be in accordance with a blasting design scheme, manual operation errors are reduced, the blast hole distribution precision is improved, and the over-excavation and under-excavation of the blasting construction are avoided.

The invention discloses an aircraft fuel quantity sensor layout method suitable for large overload and anti-flight working conditions, and aims to solve the problems that an existing layout optimization method loses an optimal solution and cannot meet aircraft fuel quantity measurement sensor layout under the large overload and anti-flight working conditions. In order to achieve the purpose, the method comprises the steps of dividing and dispersing feasible installation areas at the bottom and the top of the oil tank; generating a multi-angle sensor mounting line; carrying out pre-filtering treatment on the installation line; discretizing and combining the attitude angles of the oil surface; obtaining a mounting line set group meeting the unmeasurable oil quantity constraint according to the oil surface posture; dividing and combining the set groups; and selecting an optimal sensor layout scheme from the divided set groups according to continuity requirements and attitude error constraints. The method has the advantages of being high in universality, good in optimization performance and capable of automatically optimizing the layout scheme of the inclination sensor, and the work requirement for layout optimization of the oil mass measurement sensor under the large overload and anti-flying working conditions can be met.

The invention is suitable for the technical field of computers, and provides a three-dimensional chip layout method and device and terminal equipment, and the method comprises the steps: obtaining at least one initial layout result of a plurality of chips to be laid out; the at least one initial layout result is input into a trained power consumption prediction model for processing, a power consumption prediction value corresponding to each initial layout result in the at least one initial layout result is obtained, and the power consumption prediction model is a neural network obtained by taking the chip layout result with the power consumption prediction value as a training set for training; and selecting a final layout result from the at least one initial layout result according to the power consumption predicted value corresponding to each initial layout result. According to the three-dimensional chip layout method provided by the invention, the influence of power consumption on the three-dimensional chip layout is considered, the layout accuracy of the three-dimensional chip is improved, the power consumption of the three-dimensional chip is reduced, and the service life of the three-dimensional chip is further prolonged.

The invention relates to the technical field of building construction, and discloses an intelligent generation method for planar orthogonal multi-axial bearing platform steel bars based on a BIM technology. The method mainly comprises the steps that bearing platform surface parameters are extracted, an initial dot matrix and a model line are established on a base section and an extension section according to different types of steel bar parameters, and then offset extension is conducted on the initial dot matrix and the model line to form a steel bar model line array, different from linear bearing platform type components, different spatial arrangement rules are made for different types of steel bars according to the shapes of bearing platforms at corners or intersections of plane orthogonal multi-axial directions, and finally a steel bar model is generated. According to the method, accurate positioning and automatic arrangement of the reinforcing steel bars in the planar orthogonal multi-axial bearing platform are achieved through computer programming statements, internal collision of the reinforcing steel bars is effectively avoided, and the problems that in existing deepening design, planar orthogonal multi-axial bearing platform components are low in arrangement accuracy and disordered in arrangement rule are solved. And meanwhile, the method can be used for technical disclosure of on-site construction and has the advantages of improving the on-site machining precision and the construction efficiency and the like.

The present disclosure illustrates a circuit layout method for printed circuit board which is adapted for an electronic device. The circuit layout method includes the following steps. A parameters configuration interface is provided for receiving corresponding stack-up parameters and a plurality of layout parameters. A radio frequency layer, a first keep out layer, and a reference layer are determined based on the stack-up parameters. The first keep-out layer is placed between the radio frequency layer having a first signal trace disposed thereon and the reference layer. A first keep-out region on the first keep-out layer is formed in corresponding to the first signal trace. Circuit layouts disposed inside the first keep-out region are removed. Consequently, the corresponding keep-out region may be automatically generated in accordance to the signal requirements of the signal trace while designing the circuit layout thereby increase circuit layout quality and efficiency thereof.

The invention relates to a diamond grinding material sequential arraying system and a method, belonging to the field of grinding material and tool manufacturing. The system comprises a cylinder sleeve (3) and a piston (4). The piston (4) which can move up and down is arranged in the cylinder sleeve by a piston rod (1), the cylinder sleeve is sealed with the piston by a sealing ring (5), an elastic plate (6) is fixed at the lower end face of the cylinder sleeve by a screw (7) and a pressing plate (8), and stepped holes are sequentially arrayed in the elastic plate. The system further comprisesa worktable (14) and a supporting plate (12) arranged on the worktable (14) by a magnet block (13). With low cost and easy popularization, the system and the method can effectively, accurately and sequentially array and distribute diamond grinding materials.

The invention provides a car roof solar energy chip integration device, solar energy automobile and method for packaging a chip. The integration device includes a substrate in which through holes are arranged, the front side being provided with a first trench, and the reverse side being provided with a second trench; solar energy chips fixed on the front side of the substrate; a plurality of conductive bands arranged in the first trench, the first end of each conductive band being connected with the solar energy chip, and the second end being led out from the through hole to the reverse side of the substrate; and bypass diodes and anti-reversion diodes arranged in the second trench and connected with the second ends of the conductive bands. According to the car roof solar energy chip integration device, solar energy automobile and method for packaging the chip provided by the invention, the trenches and through holes are arranged in the substrate for arrangement of the bypass diodes, anti-reversion diodes and conductive bands, the problem in the prior art that electrical wiring control is not precise is solved, the light incoming amount of the solar energy chips is improved, the technology is simplified, and the electrical wiring precision is improved.

The invention relates to a layout method and a layout device of an integrated circuit. The layout method of the integrated circuit comprises the following steps that a layout is provided, the layout comprises a first element area and a second element area, and a spacer area is arranged between the first element area and the second element area; whether the width of the interval area is smaller than a preset width or not is detected, if yes, at least one of the first element area, the second element area and the interval area is marked, the preset width refers to the minimum width meeting the requirement, and the requirement is that the interval area is filled with at least one virtual pattern. According to the method, the element area with poor placement position in the layout can be quickly and accurately positioned, the layout efficiency of the integrated circuit is improved, the layout accuracy is improved, and a foundation is laid for improving the photoetching quality, shortening the development period of the integrated circuit, improving the yield of semiconductor products and the like.

The invention relates to a diamond grinding material arranging system, and belongs to the technical field of grinding tool manufacturing. The diamond grinding material arranging system comprises a material taking device and a worktable, wherein the material taking device comprises a cavity; the upper part of the cavity is connected with a vacuum device through an extraction opening; an arranging template component is fixedly mounted at the lower part of the cavity; the arranging template component comprises a ferromagnetic arranging pore plate, a high-elasticity plate and a mounting plate; the edge of the arranging pore plate is adhered onto the high-elasticity plate; the high-elasticity plate is mounted on the mounting plate; and a plurality of pores which are used for adsorbing and fixing diamond grinding materials are formed in the ferromagnetic arranging pore plate. The diamond grinding material arranging plate is provided with the ferromagnetic arranging pore plate, so that a vibrator can be saved and the arranging precision is remarkably improved.

A fine movement array configuration device comprises a fixed support, a rotary platform and a distance measurement device. The rotary platform comprises a circular skeleton, an equilateral triangle skeleton 1 and an equilateral triangle skeleton 2; the equilateral triangle skeleton 1 is internally connected with the circular skeleton, and the equilateral triangle skeleton 2 is internally connected with the equilateral triangle skeleton 1; the rotary platform is fixed on the fixed support; and the distance measurement device comprises a plurality of laser distance measurement devices arranged on the circular skeleton at regular intervals. When usage, the fine movement array configuration device does not need to calculate the position coordinates of each detection point in advance, cannot be basically influenced by weather phenomena such as barriers, wind and the like, is higher in configuration precision and high in configuration efficiency, and only needs one person to locate and configure detectors without the limitation of the configuration scale.

The embodiment of the invention discloses a stair embedded part automatic generation method, device and equipment based on a fabricated building and a computer readable storage medium. The method comprises the steps that the distance between the circle center of a pin key reserved hole and the side edge of a flat plate section is preset, t, the circle center position of the pin key reserved hole is positioned through the preset diameter of the pin key reserved hole and the distance between the pin key reserved hole and the horizontal edge away from the gravity center of the stair, a cylinder penetrating through the flat plate section is generated by presetting the diameter of the pin key reserved hole and the thickness of the flat plate section, Boolean subtraction operation is conducted on the cylinder and the flat plate section outline, and therefore the pin key reserved hole is automatically generated in the stair BIM. According to the construction method, t, the defects existing intraditional manual arrangement of the stair embedded parts are overcome, t, the efficiency of arranging the stair pin key reserved holes in the stair component is greatly improved, t, the arrangementaccuracy of the stair embedded parts is improved, and therefore the construction efficiency and the construction accuracy of the whole building project engineering can be improved.

The invention discloses a component layout method and device and a storage medium and belongs to the technical field of electronics. The method comprises steps that type distribution information of multiple components is determined, at least one type of component exists in the multiple components, the type distribution information indicates the number of each type of component in the multiple components, and the number of different types of components in the multiple components is in a multiple relation; a plurality of components are grouped according to the type distribution information of aplurality of components to obtain at least two component groups, each component group comprises the at least one type of component; and grid arrangement is conducted on the at least two component groups so that the component groups in the same row in the at least two component groups are aligned, and the component groups in the same column in the at least two component groups are aligned. The component layout process can be simplified, and layout precision is improved. The method is for component layout.

The invention relates to a diamond grinding material arranging system, and belongs to the technical field of grinding tool manufacturing. The diamond grinding material arranging system comprises a material taking device and a worktable, wherein the material taking device comprises a cavity; the upper part of the cavity is connected with a vacuum device through an extraction opening; an arranging template component is fixedly mounted at the lower part of the cavity; the arranging template component comprises a ferromagnetic arranging pore plate, a high-elasticity plate and a mounting plate; the edge of the arranging pore plate is adhered onto the high-elasticity plate; the high-elasticity plate is mounted on the mounting plate; and a plurality of pores which are used for adsorbing and fixing diamond grinding materials are formed in the ferromagnetic arranging pore plate. The diamond grinding material arranging plate is provided with the ferromagnetic arranging pore plate, so that a vibrator can be saved and the arranging precision is remarkably improved.

The invention discloses a method and device for determining a get-off bus station. The method comprises: acquiring a bus transaction record of a person taking public traffic for the last time in a target time period; determining a plurality of downstream bus stops corresponding to the bus transaction record according to the bus transaction record, and calculating a distance value between each downstream bus stop and the matched central point; and screening the downstream bus station corresponding to the minimum distance value as a get-off bus station corresponding to the bus transaction record. Visibly, by implementing the method and the device, the identification information and / or the get-on bus station of the public transport taken by the person at the last time in the target time period can be combined with the position of the center point matched with the target time period to determine the get-off bus station of the target person, and more comprehensive reference basis is provided for improving the operation service of urban public transportation, so that the layout accuracy of the urban public transportation network is improved, the travel efficiency of people is improved, and the traffic congestion condition is alleviated.

This project involves the field of building construction technology, and discloses a method for intelligently generating reinforcement bars for plane orthogonal multiaxial caps based on BIM technology. The steps mainly include extracting the surface parameters of the cap, establishing the initial lattice and model lines in the base section and the extension section according to the parameters of different types of steel bars, and then offsetting and extending them to form a line array of steel bar model, which is different from the linear bearing For platform components, different spatial arrangement rules are formulated for different types of steel bars according to the shape of the cap at the corner or intersection of the plane orthogonal multi-axis, and finally the steel bar model is generated. The invention realizes the accurate positioning and automatic arrangement of the internal steel bars of the plane orthogonal multi-axial bearing platform by using computer programming sentences, effectively avoids the internal collision of the steel bars, and solves the problem of the plane orthogonal multi-axial bearing platform components in the existing deepening design The layout accuracy is low and the layout rules are chaotic. At the same time, it can be used as a technical disclosure for on-site construction, and has the advantages of improving its on-site processing accuracy and construction efficiency.

The present invention relates to single screen color line powder distributing device and method. The powder distributing device includes one screen, and at least two combined powder distributors arranged over the screen and in the direction of screen motion. Each of the combined powder distributors distributes one kind of color powder, and consists of one powder throwing unit, one powder scraper and one residual powder sucking unit arranged successively along the direction of screen motion. The powder distributing method includes moving at least two combined powder distributors relatively to the screen to distribute powder material. The present invention has simple structure, easy regulation, high powder distributing efficiency and small size.

The invention discloses a manufacturing method of a glass-based LED (light-emitting diode) light-emitting module, which comprises the following steps of: performing corrosion or etching treatment on the surface of glass by taking a strong-corrosion-resistant film material as a mask to form a regular groove array structure; fixing a chip in the glass plate groove to form a glass plate provided with a high-density chip array; and aligning and attaching the glass plate provided with the conductive circuit and the glass plate of the chip array, and then carrying out laser local heating and reflow soldering treatment to form a structure that the conductive circuit glass plate, the chip and the groove array glass plate are connected into a whole. The groove array glass plate can be separated from the chip, the groove array glass plate can be repeatedly used after being cleaned, the repeatability is high, and the method is suitable for mass production. Or insulating, colorless and transparent glue is directly filled between the conductive circuit glass plate and the groove array glass plate, and a sealing structure is formed on the periphery, so that the light-emitting module is formed. And the formed light-emitting module can be subjected to double-sided thinning treatment to form the glass-based light-emitting module with the required specification.

The invention relates to the technical field of laying a wire on an interlayer of laminated glass, particularly provides a device of laying a wire of complex pattern on the interlayer of laminated glass, and also provides a method of laying a wire on the interlayer of laminated glass. The device comprises a fixed seat, a wire installation mechanism, a lifting mechanism and a wiring mechanism. The wiring mechanism comprises a heating bracket, a heating device, a wiring head, a limiting bracket, a limiting rod and a limiting roller. In a wire laying process, the heating device heats the wiring head, and the undersurface of the wiring head slides on the interlayer. According to the invention, the wire is laid on the interlayer through sliding of the undersurface of the wiring head on the interlayer, in the way of sliding wire laying, the wire can be laid on the interlayer continuously and stably, the incidental circumstance of incomplete press-in of the wire into the interlayer cannot occur, waves and the like cannot be generated, the wire laying precision is improved, and the production efficiency is enhanced.

The invention provides a series-connected assembly for photovoltaic cell layers and a preparation method thereof. The series-connected assembly includes a first layup layer and a second layup layer. The present invention also provides a method for connecting photovoltaic cell layers in series. The first lay-up layer, the photovoltaic cell layer and the second lay-up layer, which are laid in sequence, are laminated together by hot pressing. The invention can accurately position the battery layer when placing the battery layer, so as to avoid the problem that the battery sheet and the conductive strips are dislocated and affect the electrical performance; the invention has significant effects on the transfer times of the battery and the stress degree of the battery in the production process. The invention can shorten the process of component processing; the invention can improve the battery arrangement accuracy of the component during the production process of the component, and reduce the positioning difficulty of the first layer and the second layer in the production process; the present invention can Reduce the loss of batteries during processing, reduce the man-hours and energy consumption of component manufacturing, and save the input cost of the welding process.

The invention relates to the technical field of laying a lead wire on an intermediate layer of interlayer glass, particularly provides a device for laying a complex pattern on the intermediate layer of the interlayer glass, and further provides a system and a method which can be used for laying the lead wire on the intermediate layer of the interlayer glass with the coordination of a robot arm. The device comprises a fixing base, a lead wire mounting mechanism, a heating device and a wire pressing roller, and further comprises a lifting device, wherein the lifting device is used for lifting the wire pressing roller, so as to adjust pressure on the lead wire and the intermediate layer on the intermediate layer by the wire pressing roller in a lead wire laying process. The device, the system and the method for laying the lead wire on the intermediate layer of the interlayer glass provided by the invention can be used for arranging the complex pattern on the intermediate layer of the interlayer glass with the coordination of the robot arm, so that uncertain factors caused by manual operation can be avoided; furthermore, waves and the like cannot be generated; the arrangement precision of the lead wire can be improved; the stability of the product quality can be ensured; the production efficiency is improved.

The embodiment of the invention discloses a method, device, equipment and computer-readable storage medium for automatically generating embedded staircase parts based on a prefabricated building. Among them, the method includes constructing a grid-based stair outline model based on the stair configuration parameter information obtained from the BIM base map, and determining two points evenly distributed around the center of gravity of the stair by presetting the horizontal offset distance, and moving in the vertical direction Two points until they fall to the surface of the step are used as the embedding point of the vertical hanging point, and the vector direction of the embedding point pointing to the center of gravity is used as the embedding direction, and the vertical hanging is automatically generated in the staircase BIM diagram according to the preset embedding rules point. This application solves the disadvantages of the traditional manual arrangement of embedded parts for stairs, greatly improves the efficiency of arranging the vertical hanging points of stairs in the staircase components, and improves the accuracy of the arrangement of embedded parts for stairs, thereby helping to improve the overall construction project. Construction efficiency and construction accuracy.

The invention discloses a prefabricated stand column and aims to overcome the defects that an existing prefabricated stand column is low in precision and cannot be well matched with a bent cap and a small box girder. The prefabricated stand column is formed by concrete pouring and comprises a positioning plate at the bottom and a pre-embedded column sleeve at the top, a grouting sleeve is fixedly connected to the positioning plate and arranged at the position, close to the outer edge, of the positioning plate, and the positioning plate is provided with an open hole corresponding to and communicated with the grouting sleeve; longitudinally arranged main reinforcements and annular stirrups arranged along the cross section are arranged between the positioning plate and the pre-embedded column sleeve, the main reinforcements are inserted into the grouting sleeve, the other ends of the main reinforcements are positioned through the embedded column sleeve, and the annular stirrups hoop the main reinforcements and the grouting sleeve. The arrangement precision of the main reinforcements is higher through the pre-embedded column sleeve, the main reinforcements are better matched with other prefabricated parts, meanwhile, collision between the reinforcements is avoided, and the waste of raw materials is reduced.

The invention discloses an effective method for an optimized layout of factory facilities. The method builds a model for the layout of the factory facilities. The model is in the following form: min F(X) = tr (AXB <T> x <T>+CX <T>) s.t., where X belongs to Pi, wherein A, B, C belong to R<n*n> and are three matrixes with same scale; the damping matrix A stands for specific loss between devices; the distance matrix B stands for difference between places; the C, which stands for a maintenance cost matrix, is an unknown distribution matrix, and the form of the C is a permutation matrix; Pi is a permutation matrix set; and tr (*) stands for trace of the matrixes. The method conducts optimizing for an objective function of the model based on gradual nonconvex and gradual concave process, and can keep a higher layout precision, and meanwhile greatly reduce time consumption and storage consumption.