50results about How to "Fix layout issues" patented technology

The invention discloses an intelligent pipeline arrangement optimization method and system based on a differential evolution algorithm. The method includes the steps of conducting mathematical modeling on a pipeline to be arranged and arrangement space so as to determine an arrangement object, the constraint condition and the evaluation criteria, coding the arrangement object through polar coordinates and posture vectors, conducting optimization solution on a pipeline arrangement optimization mathematical model according to the differential evolution algorithm, and conducting constraint condition verification and arrangement adjustment on the arrangement optimization scheme obtained through the solution so as to obtain a final arrangement scheme. By means of the intelligent pipeline arrangement optimization method and system based on the differential evolution algorithm, the design cycle can be greatly shortened, optimization performance can be enhanced, the purpose of arranging pipelines on a large scale within limited time can be achieved, and the method and the system have the advantages of being short in arrangement design time, high in optimization accuracy, capable of quantitatively evaluating the arrangement scheme and the like.

The invention discloses a shared car sharing site layout and selection model. The implementation process of the model includes the following steps of: establishing a shared rental car site selection cost model; establishing a network effect-based shared car rental profit model; establishing the objective function model of marginal costs and marginal profits; and using a firefly algorithm to simulate the objective function model. With the model adopted, problems in site layout with a strong network effect can be solved; and an improved firefly algorithm-based site selection model represented by sharing shared cars is built.

A workshop layout method for the complex job of simulating human cell evolution comprises the specific steps of (1) multi-target layout function determination, and (2) human cell evolution simulation design, wherein the target function of the workshop layout is specified in the specification, and the human cell evolution simulation design comprises cell machine model design, a difference intelligent cell algorithm and a dynamic difference intelligent cell algorithm.

The invention relates to a very large scale integration (VLSI) standard unit overall arranging method based on an L1 form model and belongs to the technical field of VLSI physical design automation. The method includes indicating a circuit as a super graph, modeling a VLSI standard unit overall arranging problem which adopts semi-cycle long-line calculation with the density constrained to be non-smooth into an L1 form minimum problem, adopting an optimum selection clustering algorithm applicable to modification of an L1 form model in a clustering stage to conduct clustering on a unit and conducting declustering on clusters in a declustering stage by adopting a nonlinear planning overall arranging method. The VLSI standard unit overall arranging method is reasonable in arrangement, high in efficiency, practical and good in arranging effect.

The invention relates to a direct solution technology-based VLSL standard unit layout method, and belongs to the technical field of VLSI physical design automation. According to the method, global VLSI standard unit layout problems are solved through establishing global density functions of the problems, carrying out convolutional smoothing by utilizing Gaussian functions and combining a wire length model. The key points of the technical scheme are as follows: (1) being different from the manner of obtaining discrete density function values by using a uniform bin division method, the method can more correctly depict the distribution condition, on a layout area, of units through a global density expression constrained by a calculation unit and the whole layout area in an overlapping area; (2) through considering that the discretion of the units is related to the densities of the places where the units are located and the densities of the surrounding places, the model carries convolutional smoothing on the global density functions by using the Gaussian functions, a penalty function method is adopted convert the wire length target and density constraint of VLSI global layout into unconstrained nonlinear planning problems, and a proper optimization technology is selected to carry out optimization.

The invention discloses a ship branch pipeline path planning method. The method comprises the steps of on the basis of simplifying a device ad a pipeline model, establishing a network graph between two points referring to a visible graph method in mobile robot path planning; setting branch pipelines containing N connection points, establishing the network graph between every two points of the N connection points, and combining update data information, thereby obtaining the total network graphs among the N points; establishing a population based on a Steiner point genetic algorithm, setting genetic algorithm parameters and then starting iteration to carry out optimization; determining the equivalent lengths of the pipelines and endowing different weight coefficients to different pipelines; evaluating the fitness value of each chromosome by use of a distance heuristic algorithm; judging whether set irritation times arrives or not; outputting optimum paths, finishing path planning, updating pipeline code information in a storage document, and realizing three-dimensional visualization of the ship branch pipelines through combination of three-dimensional design software. The method has very high search efficiency and can satisfy the practical demands of ship branch pipeline path planning better. The layout problem of the branch pipelines is solved.

A method for the configuration of a star sensor head comprises the following steps of: establishing a space digital ball by which a coordinate system is parallel to an orbital coordinate system; calculating the scope of an included angle between sunlight and the orbital coordinate system and the scope of an included angle between earthshine light and the orbital coordinate system; cutting the spaces of digital balls occupied by two partial areas in the space digital ball to form an effective space digital ball for the configuration of the star sensor head on a single flight attitude spacecraft; repeating the above steps; converting effective space digital balls obtained under a plurality of single flight attitudes into required rotating angles according to a spacecraft attitude, combining the digital balls rotated for corresponding angles; splicing the effective space digital balls together; taking a crossing part of the effective space digital balls; and determining the direction of the star sensor head on the spacecraft. With the adoption of the method, the requirements of a plurality of flight attitudes can be simultaneously satisfied, and the technical problem that the direction of the star sensor head cannot flexibly rotate along with the spacecraft can be solved.

The invention discloses a VLSI (Very Large Scale Integration) standard unit placement method based on an electric field energy modeling technology. The method establishes the electric field energy model of a problem, and a global density function and an analytical solution of a Poisson equation are utilized to solve a VLSI standard unit global placement problem. The method has the technical key point that: (1) analogy is carried out on the placement problem and a static electricity system, a unit is taken as an electric charge, original density constraint is converted into zero potential energy constraint, a differential equation is constructed, an explicit expression is solved for the differential equation to more accurately describe the potential energy constraint, then, a penalty function method is adopted to convert the wire length target and the potential energy constraint of the VLSI global placement into an unrestraint nonlinear placement problem, and a proper optimization technology is selected for optimization; and (2) different from a situation that a method for evenly dividing bin is used for obtaining a discrete density function value, the method disclosed by the invention is characterized in that the global density expression of the unit and the overlapping constraint of a whole placement area is calculated so as to more accurately describe the distribution situation of the unit on the placement area.

The invention provides a modular platform door and belongs to the technical field of rail transit. The modular platform door comprises a top box module; a connecting part is mounted at one end of thetop box module; through the connecting part, the top box module is connected with an air duct beam constructed through civil engineering; the other end of the top box module is connected with a portalcrane beam module, wherein a door body module is connected to the portal crane beam module; and one end of the door body module is connected with a bottom base on a civil engineering structure platform. According to the modular platform door, a standardized and modular unit individual is formed, and the two adjacent unit individuals are flexibly connected with each other, and therefore, the problem of a curve station is solved; in addition, as the modular platform door is formed by splicing each module, the workload of field operation is furthest reduced, the mounting quality and the actual effect are improved, the mounting operation management cost is reduced, the problems that materials are supplemented and the construction period is prolonged are solved, and the budget controllabilityof the whole project is enhanced.

The invention discloses a sensor layout optimization and rapid deployment method for a wireless visual sensing network, and the method comprises the following specific steps: 1, building a visual sensing network model which comprises a sensing model, a space model, a coverage model and a reconstruction error model; step 2, coverage rate and reconstruction quality definition; 3, multi-objective optimization overall design is carried out; and 4, quickly deploying the visual sensing network. According to the method, a multi-objective optimization algorithm can be designed in a given three-dimensional space according to the target requirements of large coverage range and small reconstruction error, a reasonable camera layout scheme (including camera positions and azimuth angles) is provided, actual installation and debugging of the cameras are guided, manpower and material resources can be greatly saved, network deployment is accelerated, and the method is suitable for large-scale popularization and application. The dimension reduction search method can solve the problem of sensor layout in any shape space, reduce the number of optimization variables and improve the optimization speed.

The invention discloses a framework device based on a longitudinal motor and a novel center pin boss, and belongs to the field of railway vehicle bogie framework devices. The device comprises a bidirectional output shaft motor, two anti-snaking shock absorbers, two secondary vertical shock absorbers, two gear boxes and two secondary transverse shock absorbers, and the device is characterized by further comprising two forged piece side beams, a longitudinal motor shell, a center traction base mechanism, two side beam balance connecting rods, four shell side beam connecting columns and a traction base fixing and shock absorbing mechanism; the bidirectional output shaft motor is coaxially and fixedly connected into the longitudinal motor shell, and the two gear boxes are rotationally and symmetrically arranged at the two ends of the longitudinal motor shell; and the front output end and the rear output end of the bidirectional output shaft motor are in transmission connection with the corresponding gear boxes through bevel gears respectively. A large amount of framework space can be saved, a motor control program can be simplified, the electric energy utilization and conversion efficiency and the control efficiency are improved, and the energy-saving and environment-friendly attributes of a train are enhanced.

The invention relates to a common-aperture broadband interferometer antenna array, which includes seven Vivaldi slot line antennas and a mounting plate; the mounting plate is a disc structure, and a round hole of Ф150 mm to 200 mm is opened at the eccentric position of the disc structure. ;The round hole is used to install infrared sensors or active antennas; seven Vivaldi slot line antennas are fixed on the surface of the disc structure, and the seven Vivaldi slot line antennas are arranged in a "cross" shape; where the "cross" shape crosses The slot line antenna is a common antenna, which is used for horizontal direction finding and pitch direction finding at the same time; the three horizontal slot line antennas are used for horizontal direction finding; the three vertical slot line antennas are used for pitch direction finding.

The invention relates to a folding and unfolding method of a large-area and small-length-width ratio satellite borne planar radar antenna. The unfolding process of the folding and unfolding method includes a blocking stage and an unfolding stage. The blocking stage includes the following steps that: a plane phased array antenna is divided into an A sub-array and a B sub-array in a width direction, wherein the two sub-arrays are respectively installed on two side surfaces of the body of a satellite; and the A sub-array is divided into two or three sub-plates in a length direction which are denote as A1, A2 and A3 respectively, and the B sub-array is divided into two or three sub-plates in a length direction which are denote as B1, B2 and B3 respectively. The unfolding stage includes following steps that: the sub-plates A1, A2 and A3 are unfolded through an unfolding mechanism so as to form the complete A sub-array, and the sub-plates B1, B2 and B3 are unfolded through an unfolding mechanism so as to form the complete B sub-array; and the B sub-array is rotated, so that the B sub-array and the A sub-array can be spliced together to form the complete plane phased array antenna. With the folding and unfolding method of the invention adopted, the problem that the large-area and small-length-width ratio satellite borne planar radar antenna cannot be mounted on the satellite can be solved.

The invention relates to a method for establishing a wind turbine output simulation model. The method comprises the following steps: (1) determining wind turbine parameters: wind turbine diameter, hubheight, air density and inflow wind speed; (2) determining modeling conditions; (3) establishing an equation of wind turbine tail flow wind speed according to the principles of mass conservation andmomentum conservation; and (4) establishing a model: substituting the inflow wind speed Uo into the wind speed logarithm profile, and expressing the wake flow model of the wind turbine as a function in a three-dimensional orthogonal frame O (x, y, z). By determining the wake flow distribution condition of the wind turbines, the method solves the optimal layout distance between the upstream wind turbines and the downstream wind turbines, and can be effectively improve the land utilization efficiency and the downstream wind power plant power generation efficiency.

The invention provides a path tracking method, which comprises the following steps: in the process that a client performs path tracking by sending a tracking message with a TTL value of N, if a first network device receives the tracking message, caching an incoming interface address for receiving the tracking message on the first network device; and when the first network equipment determines that the equipment is not the destination address for path tracking and the TTL value is reduced to 0, generating a TTL time-out message, enabling the TTL time-out message to carry the cached information of the incoming interface address, and sending the TTL time-out message to the client. Therefore, before the TTL time-out message is sent to the client, the source address carried by the TTL time-out message is the incoming interface address of the tracking message received by the TTL time-out message, so that troubleshooting of a networking information path is facilitated, and maintenance and solving of a network layout problem are facilitated.

The invention provides a multi-high-rise logistics warehouse modular layout system. The multi-high-rise logistics warehouse modular layout system comprises three high-rise logistics warehouses which are arranged in the shape like an inverse Chinese character 'pin', wherein the three high-rise logistics warehouses all adopt a form of single-side loading and unloading, outdoor loading and unloadingyards and channels are arranged on all layers of the high-rise logistics warehouses, and the outdoor loading and unloading yards and channels of all layers of the high-rise logistics warehouses are connected to form U-shaped channels; and the U-shaped channels of the adjacent layers of the high-rise logistics warehouses are connected through an entrance ramp and an exit ramp. The invention furtherprovides application of the multi-high-rise logistics warehouse modular layout system to general drawing arrangement. The multi-high-rise logistics warehouse modular layout system serves as a standard module, and the multi-high-rise logistics warehouse general drawing arrangement is generated through various combining forms. According to the multi-high-rise logistics warehouse modular layout system and the application of the multi-high-rise logistics warehouse modular layout system to the general drawing arrangement, land using is intensive, the layout is compact, and the transportation streamline is clear; through combined application, the multi-high-rise logistics warehouse modular layout system can adapt to logistics park general drawing arrangement with different landing using shapesand different land using areas, so that the effects of saving state owned land sources, improving the land utilization rate and improving the design efficiency are achieved; and efficient, accurate and intelligent development of the logistics industry can be promoted.

The invention relates to a thruster layout of an aircraft and an aircraft position protection method based on the layout and belongs to the field of high-orbit satellite design. The aircraft provides20 thrusters which divided into two branches, each branch comprises 10 thrusters, and each branch can independently complete six-degree-of-freedom attitude and orbit decoupling control of a service aircraft and south-north and east-west position keeping and attitude control of an assembly. Each position protection mode provided by the invention comprises backup, and for the selection of the backup, a formula related to the centroid height of the assembly and the thrust angle of the multi-task aircraft thruster is adopted to calculate the position protection efficiency, so that the highest efficiency of the selected position protection mode is ensured.

The invention provides a Mars probe double-component multi-gear thruster configuration and layout method and system. The Mars probe double-component multi-gear thruster configuration and layout methodcomprises the steps that S1, obtaining bottom plate centralized layout scheme selection result information; S2, obtaining the result information of the main and standby matching of the sub-gears; S3,constructing a three-gear thruster combined working mode, and completing coordinated installation of the length of a thruster force arm; S4, on the basis of the overall configuration and layout of the probe, balancing the layout position reasonability and design cost of the thruster, considering the constraint of the mechanical environment of the probe on the layout position of the thruster, theplume of the thruster and the working heat influence, and determining the layout position of the thruster in combination with the layout state of the single-machine equipment; and S5, acquiring configuration and layout information of the double-component multi-gear thruster of the Mars probe. According to the method, the Mars probe layout space and the system resource limitation are fully considered, the thruster layout problem under the resource constraint is solved, and the working requirement of attitude and orbit control of the detector is met.

The invention provides a satellite layout method and system for satellite-borne full-airspace loads. The method comprises the steps of 1, analyzing satellite configuration characteristics according tothe configuration of a satellite platform and an effective load; 2, constraining the full-airspace loads according to the satellite configuration characteristics; 3, constructing a load configurationconforming to a preset condition according to the constrained full airspace loads; and 4, based on the configuration of the existing satellite platform and the effective load, performing the satellite layout of the full-airspace loads according to the preset load configuration. According to the invention, the layout problem of full-airspace loads of different frequency bands, systems and purposeson various satellite platforms of different types is solved, the universality and the practicability are high, and support can be provided for the design of the overall satellite and related load configurations.