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41results about How to "Helps to choose" patented technology

Two-dimensional navigation path planning method based on vector electronic chart

The invention provides a two-dimensional navigation path planning method based on a vector electronic chart, comprising the following steps: selecting a sea area on the vector electronic chart, determining an unavailable arrival area, a necessary arrival point and a navigation path cost parameter; setting a starting point and an ending point on the selected sea area, storing the coordinate valuesof the starting point, the ending point and the necessary arrival point in a node library according to an arrival sequence; taking out two points from the node library to make connection between the two points, judging whether the obtained connection passes the unavailable arrival area or not, if not, taking the connection to be a candidate navigation path between the two points, if so, finding out points which is intersected with the connection and is not capable of arriving outside area from the selected sea area, repeatedly executing the step after coordinate values of found points are stored in the node library according to the arrival sequence; connecting the candidate navigation path between the two points in the node library to obtain all candidate navigation paths; calculating navigation cost of all candidate navigation path according to the navigation cost parameter; and taking the candidate navigation path with the minimum cost as the final navigation path.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Application display method and apparatus, and terminal

The invention provides an application display method and apparatus, and a terminal. The method includes detecting the current environment data; determining equipment to be selected for users from intelligent equipment bound with an intelligent household application based on the environment data; and displaying the equipment to be selected in the equipment list of the intelligent household application. Through the application of the method, the terminal determines the equipment to be selected based on the environment data and only displays the equipment to be selected in the equipment list of the intelligent household application. Because the equipment to be selected is selected based on the environment data, the method is practical and the equipment may be the intelligent equipment which is needed by the users immediately. The users can conveniently select intelligent equipment without the need for searching the equipment from all of the displayed intelligent equipment, and the user experience is improved.
Owner:XIAOMI INC

User review consistency judgment method of APP (Application) software

The invention relates to a user review consistency judgment method of APP (Application) software, and belongs to the field of the user evaluation of the APP software. The user review consistency judgment method comprises the following steps: firstly, extracting an APP software characteristic sentiment word pair set; then, calculating the sentiment tendency degree score of sentiment word pairs in the extracted APP software characteristic sentiment word pair set; and finally, judging whether the user reviews of the APP software are consistent or not under a condition whether the sentiment tendency degree score is not equal to zero or not. The APP software characteristic sentiment word pair set is defined and extracted so as to be favorable for more accurately judging the consistency of the user review information and scoring star levels; the sentiment tendency degree of the user on the APP software is divided into five levels corresponding to the scoring star levels to judge the consistency of the user reviews of the APP software so as to be favorable for the user to select the APP software which meets demands; and the consistency of the user reviews of the APP software is judged to be favorable for the user to evaluate the quality of the APP software.
Owner:KUNMING UNIV OF SCI & TECH

Method for machining hot-dipped galvanized steel sheet having two faces with different types of spangles

The invention relates to a method for machining a hot-dipped galvanized steel sheet having two faces with different types of spangles, belonging to the technical field for machining hot-dipped galvanized steel sheet. The method comprises the steps of rolling a base plate, washing, annealing, zinc boiler galvanizing and skin rolling. The method is characterized in that the surfaces of an upper working roll and a lower working roll for rolling the base plate in the step of rolling are processed in a way of roughening so that the surfaces of the upper working roll and the lower working roll are respectively form a roughened surface structure; the roughened surface structure on the upper working roll is different from the roughened surface structure on the lower working roll; when the upper working roll and the lower working roll with the roughened surface structures roll the base plate, the two faces of the base plate are respectively form the roughened surface structure of the base plate, wherein, the roughened surface structure of the base plate formed at one face of the base plate is different from the roughened surface structure of the base plate formed at the other face of the base plate. The method is good for saving zinc raw materials and reducing cost for manufacturers and is helpful for users to elect according to use and request.
Owner:CHANGSHU HUAYE STEEL STRIP

Device and method for grade evaluation of traditional Chinese medicine decoction pieces

The invention provides a device and method for grade evaluation of traditional Chinese medicine decoction pieces. The device for grade evaluation of the traditional Chinese medicine decoction pieces comprises a parameter input unit, a parameter storage unit and a processing unit, wherein the parameter input unit is used for inputting parameters of the traditional Chinese medicine decoction pieces to be carried out grade evaluation, the parameter storage unit is used for storing the parameters of the traditional Chinese medicine decoction pieces to be carried out grade evaluation, and also stores a database of parameters of standard substances, of the traditional Chinese medicine decoction pieces, of different grades, and the processing unit carries out comparison and analysis on the obtained parameters and the parameters of the database of the standard substances, of the traditional Chinese medicine decoction pieces, of the different grades to evaluate the grades of the traditional Chinese medicine decoction pieces. The method for grade evaluation of the traditional Chinese medicine decoction pieces combines analysis indexes of various traditional Chinese medicine decoction pieces, and evaluates the grades of the traditional Chinese medicine decoction pieces through comprehensive and scientific inspection of various characteristics of the traditional Chinese medicine decoction pieces.
Owner:KANGMEI PHARMA

A high-reliability power supply area distribution network planning effect comprehensive evaluation method

The invention relates to a high-reliability power supply area distribution network planning effect comprehensive evaluation method. The method comprises the following steps of 1) establishing a planning effect index evaluation system comprising a criterion layer and an index layer; 2) determining a high-reliability power supply area distribution network planning scheme by combining different gridstructures, electrical equipment types, an automatic configuration method and a communication construction method; 3) obtaining basic data of the distribution network planning; 4) determining the weight of each criterion in the criterion layer; 5) determining the weight of each index in the index layer; 6) determining the score functions of the indexes respectively; 7) obtaining a comprehensive evaluation result. The method has the advantages that a distribution network planning and construction decision maker is helped to select an appropriate high-reliability power supply area distribution network planning scheme, and the problems that a high-reliability power supply area distribution network planning effect index evaluation system is unclear, an evaluation result is fuzzy and the like are solved.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3

Fill settlement prediction method based on centrifugal model test

ActiveCN112161602AMethod is reasonable and reliableBoundary conditions are clearHeight/levelling measurementModel sampleThree-dimensional space
The invention discloses a fill settlement prediction method based on a centrifugal model test, and relates to the technical field of fill engineering, and the method comprises the following steps: S1,setting a special model box for a fill engineering settlement test, and enabling the interior of the model box to be a separation model space; S2, manufacturing a centrifugal model sample of the engineering key node, and manufacturing a centrifugal model sample of general regularity research of the multi-parameter influence; S3, performing data transmission with a centrifugal machine in the modelbox, and completing a personalized model test and a generic model test; and S4, drawing a space scatter cluster, performing fitting, performing smoothing and generating a three-dimensional space curved surface. According to the method, time cost and economic cost are saved, fill settlement of objective entity working conditions can be simulated in advance, and the method can be used for comparison and selection of multiple alternative schemes and optimization of design parameters; three parameter relations related to settlement can be established at the same time, a space curved surface is formed, and tedious operation of field tests or numerical calculation is avoided.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN

Investment institution income information mining method and device, electronic equipment and storage medium

The invention provides an investment institution income information mining method and device, electronic equipment and a storage medium, and the method comprises the steps: updating the historical stockholder change information of a target enterprise based on the stockholder information of the target enterprise collected all the time; updating historical registration capital change information of the target enterprise on the basis of registration capital information of the target enterprise collected all the time; based on the financing information text of the target enterprise and the industrial and commercial change information of the target enterprise, determining investment and financing information of the target enterprise; and based on the historical shareholder change information, the historical registration capital change information and the investment and financing information, determining income information of an investment institution of the investment target enterprise. According to the method, the device, the electronic equipment and the storage medium provided by the invention, the real and complete shareholder change condition and the registration capital change condition of the target enterprise are monitored, and the real and reliable income information of the investment institution of the target enterprise is obtained in combination with the investment and financing information of the target enterprise, so that a project party and an investor can be guided to select the investment institution.
Owner:上海药慧信息技术有限公司

Simulation analysis method and device for space debris laser ranging effect

The invention discloses a simulation analysis method and device for the space debris laser ranging effect. The simulation analysis method comprises the steps that aiming at the photon moment sequence,according to the sequential order of the photons, whether the photons are detected or not is judged, specifically, according to the detection mode, a random number delta is generated within the uniform distribution range of 0-1, the magnitude relation between the random number delta and the detection efficiency eta of the single photon is judged, wherein eta is equal to 1-e<-1>, if delta is smaller than or equal to eta, the photon is successfully detected, if delta is larger than eta, the photon is not detected, and then the next photon continues to be judged till all the photons are judged;and based on the photon detection result, a simulated detector output signal is generated. By using the simulation analysis method and device, simulation analysis on the space debris laser ranging effect can be completed without interval division of the photons, and the consistency between the simulation effect and the actual measurement effect is improved.
Owner:北京跟踪与通信技术研究所

Yisu embroidery stitches used for improving texture of carbon powder sketch

The invention discloses Yisu embroidery stitches used for improving the texture of a carbon powder sketch. According to the invention, after determination of the color and type of a yarn accordingly used at the position of each needle hole for embroidering during actual embroidering, separate embroidering with each kind of yarns is carried out; plain stitches are used for embroidering as much as possible; stitch length from a starting needle hole to a dropping needle hole is 1 to 3 mm; for areas with obvious changes in color, point-stitch embroidering is carried out needle hole after needle hole, and the number of stitches in each square centimeter is guaranteed to be in a range of 60 to 100; and for areas with mild changes in color, short-line-stitch embroidering is carried out by skipping a part of needle holes. A computer can be used for gray scale analysis of the carbon powder sketch, so the desired colors and types of yarns can be more accurately determined, and selection of embroidering methods during actual embroidering is facilitated; and compared with conventional random stitch embroidering, the Yisu embroidery stitches provided by the invention allow a prepared embroideryto have texture more similar to an original picture.
Owner:长沙市伊飞湘绣有限公司

Molecular marker combination for predicting prognosis condition of cervical cancer patient and application of molecular marker combination

The invention discloses a molecular marker combination for predicting prognosis conditions of cervical cancer patients and application of the molecular marker combination. According to the invention, three screened NRGs including CHMP4C, SLC25A5 and VDAC1 are taken as a molecular marker combination, a risk prediction model with three NRGs is established, and cervical cancer patients are divided into a high risk group and a low risk group. According to the risk prediction model, the AUC value corresponding to the one-year lifetime prediction is 0.694, the AUC value corresponding to the three-year lifetime prediction is 0.703, the AUC value corresponding to the five-year lifetime prediction is 0.664, and better accuracy and specificity are achieved. And the prediction performance of the risk prediction model in the invention is verified in a verification set. The model provided by the invention can effectively predict prognosis of a cervical cancer patient, which is beneficial to selection of a clinical treatment scheme and further realizes early intervention and early treatment of cervical cancer.
Owner:广东省科学院生物与医学工程研究所

Auditing system for government investment projects

The invention discloses an auditing system for government investment projects. The auditing system comprises a desktop module, a plan management module, a project management module, a unit managementmodule, a project query module, a project statistics module, a process management module and a system management module. According to the invention, auditors are helped to dynamically manage and trackauditing items; auditors are assisted in auditing calculation; the office efficiency is improved; auditing work such as auditing data collection, auditing project management, budget rough calculationauditing and tracking auditing in the auditing process is realized; doubtful point data are provided for an audit analysis system, construction project investment decision audit, construction preparation audit, construction management audit, completion audit, cost audit, financial revenue and expenditure audit, investment benefit evaluation and industry audit methods and models are completed, auditors can select invested enterprises easily, and the investment audit efficiency is improved.
Owner:安徽天勤盛创信息科技股份有限公司

Method for calculating surface roughness of workpiece during turning based on tool wear

The invention provides a method for calculating the surface roughness of a workpiece during turning based on tool wear, and the method comprises the following steps: 1), building a calculation model of the surface roughness of the workpiece during turning according to the relation between turning parameters and the surface roughness of the workpiece and considering the impact on the surface roughness of the workpiece from the tool wear condition; 2) performing a turning experiment, and measuring and calculating each undetermined coefficient in the workpiece surface roughness calculation modelby means of a roughness instrument and a metallographic microscope; and (3) under the condition that the tool material, the workpiece material and the machining mode are the same, for a new turning process scheme, calculating the surface roughness of the workpiece during turning according to the turning parameters and the wear loss of the rear tool face of the turning tool. The method has the advantages that the surface roughness of the workpiece is calculated by comprehensively considering influence of turning parameters and tool wear conditions, and the calculation method is simple and highin precision; and process parameter selection is facilitated to improve the surface quality and reduce the rejection rate.
Owner:SHANDONG UNIV OF TECH

Heart valve model and manufacturing method thereof

The invention discloses a heart valve model and a manufacturing method thereof, and relates to the technical field of medical instruments.The manufacturing method comprises the steps that medical image data of a heart valve of a specified patient is acquired, and a digital model of the heart valve is constructed based on the medical image data; the contour of the digital model is evenly expanded outwards by a preset thickness, after an expanded model is obtained, Boolean subtraction is carried out on the digital model and the expanded model, a hollow mold model is obtained, and the mold model is provided with a pouring inlet and an exhaust port; the mold model is guided into a 3D printer, a soluble material is adopted for printing, and a heart valve mold is obtained; and preparing a simulation material, pouring the simulation material into the heart valve mold, and dissolving the heart valve mold after the simulation material is cured to obtain the heart valve simulation model. According to the manufacturing method, individualized pathological anatomy reproduction can be achieved, and the heart valve simulation model manufactured through the method can serve as a simulation model for preoperative operation simulation and operation training of clinicians.
Owner:WUHAN UNIV

Image sensor and formation method thereof

The invention relates to an image sensor and a formation method thereof. The method comprises steps that a first semiconductor substrate and a second semiconductor substrate are provided; a reflectionstructure is formed on a front surface of the first semiconductor substrate and / or a front surface of the second semiconductor substrate; the front surface of the first semiconductor substrate and the front surface of the second semiconductor substrate are bonded; a pixel device is formed on a back surface of the first semiconductor substrate or a back surface of the second semiconductor substrate, and the pixel device includes photodiodes; light penetrating at least a part of the photodiodes is reflected by the reflection structure to at least a part of the photodiodes. The method is advantaged in that the transmitted light can be absorbed in a secondary time, and the absorbing capacity of the incident light is enhanced.
Owner:HUAIAN IMAGING DEVICE MFGR CORP

Crystalline nitroxquinoline, and preparation method and application thereof

The invention discloses a crystalline nitroxquinoline, and a preparation method and application thereof. An X-ray powder diffraction pattern of the crystalline nitroxquinoline comprises characteristic peaks at 2theta diffraction angles of 11.3 + / -0.2 DEG, 12.9 + / -0.2 DEG, 16.9 + / -0.2 DEG, 19.7 + / -0.2 DEG, 22.1 + / - 0.2 DEG, 23.7 + / -0.2 DEG, 24.2 + / -0.2 DEG, 25.9 + / -0.2 DEG, 27.1 + / -0.2 DEG and 28.0 + / -0.2 DEG. The crystalline nitrooxquinoline has no hygroscopicity and good stability, so that the selection of administration routes and the optimization of a pharmaceutical preparation process are facilitated, the production quality of drugs is improved, and the action effect of the drugs is improved.
Owner:JIANGSU YAHONG MEDITECH CO LTD +1

Mobile application classification method for strengthening topic attention mechanism

The invention provides a mobile application classification method for strengthening a topic attention mechanism, and the method comprises the steps: firstly carrying out the global topic modeling of amobile application content text through an LSA model, and then carrying out the local hidden representation of the content text through a BiLSTM model; secondly, for a mobile application content representation text rich in global topic information and local semantic information, introducing an attention mechanism to distinguish contribution degrees of different words, and calculating weight values of the contribution degrees; and then, through a full connection layer, finishing classification and prediction of the mobile applications by using a softmax activation function. Experimental results prove that the method provided by the invention can improve the accuracy of mobile application classification indeed, and is more helpful for users to select suitable mobile applications.
Owner:HUNAN UNIV OF SCI & TECH

Web page operation method and device, web page presentation method and device, and electronic device

The invention discloses a method and device for webpage operation, a method and device for webpage presentation and an electronic device. A method for opening target contents from a current webpage is provided, the current webpage comprises at least one hyperlink, and every hyperlink respectively corresponds to one target content. The method comprises the steps of comparing expected response time of one clicked hyperlink with a predetermined threshold when a user clicks the hyperlink, determining whether the target content corresponding to the clicked hyperlink is downloaded and presented in a background browser window or a current browser window of the current webpage on the basis of comparison results, and enabling the background browser window to be different from the current browser window.
Owner:CANON KK

A device and method for quickly testing the wetness of dust-reducing agent

A device and a method for rapid testing of degree of wetting of a dustfall agent are disclosed, the device comprises a contact angle test section, a wetting speed test section, a surface tension test section and a computer processing section; the method uses the above device for testing, a liquid level signal is converted into a current signal by a liquid level sensor, and wetting speed can be accurately determined; based on Wilhemly principle, a pressure-sensitive sensor is used for rapid determination of the contact angle of a dust sample and a dustfall agent solution; a surface tension sensor is used in conjunction with a computer numerical model to determine critical micelle concentration; and finally the wetting speed is used as a basis parameter, the contact angle is used as a preferable parameter, the critical micelle concentration is used as a cost parameter, and the degree of wetting Favc for comprehensive characterization of wettability of the dustfall agent can be obtained. The device is fast in test speed and high in accuracy, the testing device is intelligent and simple in operation, and the device has broad applicability in the development and optimization of various types of dustfall agents.
Owner:CHINA UNIV OF MINING & TECH

Bus stop name generation method and device

The invention discloses a bus stop name generation method and device. The method comprises the steps: obtaining a bus stop set; grouping the bus stations in the bus station set based on the names to obtain a plurality of homonymous station sets; based on the route to which the target station belongs, the route direction and the station serial number, obtaining a passing station corresponding to the target station; screening the station with the maximum passenger flow volume on each line of the target station in the passing stations to obtain a plurality of large passenger flow stations; basedon the plurality of large passenger flow stations, obtaining a nonlinear coefficient from the target station to each large passenger flow station; based on the large passenger flow stations and the nonlinear coefficients corresponding to the large passenger flow stations, obtaining guide words; and constructing a new name of the target site based on the original name of the target site and the guide word to obtain the new name of the target site. The new station name constructed by the invention can effectively solve the problem that the original station name cannot be explained clearly.
Owner:武汉元光科技有限公司

Method for calculating workpiece surface roughness during cylindrical turning by considering workpiece vibration

The invention provides a method for calculating workpiece surface roughness during cylindrical turning by considering workpiece vibration. The method includes the following steps of firstly, establishing a model for calculating the workpiece surface roughness during cylindrical turning according to a machine tool-tool-workpiece vibration theory on the basis of turning parameters, a workpiece diameter and tool abrasion; secondly, measuring and calculating all undetermined coefficients in the model for calculating the workpiece surface roughness during cylindrical turning with the aid of a vernier caliper, a roughmeter and a metalloscope; and thirdly, calculating the workpiece surface roughness during cylindrical turning before machining for a ground of new technological parameters accordingto the turning parameters, the workpiece diameter and the tool abrasion loss under the conditions of the same machine tool, the same clamping mode, the same tool material, the same workpiece materialand the same machining mode. The method has the advantages that the workpiece diameter serves as a characteristic quantity of workpiece vibration during cylindrical turning, the workpiece surface roughness is calculated by comprehensively considering the influences of the turning parameters, the workpiece vibration and the tool abrasion, and the calculating method is simple and high in precision.
Owner:SHANDONG UNIV OF TECH

An investment audit management analysis system

ActiveCN108510171BHelps to chooseImprove the efficiency of investment auditFinanceResourcesInvestment evaluationBusiness enterprise
The invention discloses an investment audit management analysis system, which includes a financial acquisition module, a risk assessment module, an investment assessment module, and an investment diversion module; the financial acquisition module is used to acquire the operation information of the invested enterprise and the current revenue and expenditure status obtained from the investment, And send them to the risk assessment module in sequence according to the sum of income and expenditure differences; the risk assessment module receives the information sent by the financial acquisition module to determine the risk coefficient and income level coefficient of the investment, and sends it to the investment assessment module; the investment assessment module is used to judge the value of each invested The comprehensive investment coefficient of the enterprise, and output the comprehensive investment coefficient to the investment steering module. The invention calculates the risk coefficient and income level coefficient of the invested enterprise through the risk evaluation module, and evaluates the investment comprehensive coefficient through the investment evaluation module, so as to screen the invested enterprise with a higher investment comprehensive coefficient, which is helpful for managers to The selection of invested enterprises improves the efficiency of investment audit.
Owner:安徽天勤盛创信息科技股份有限公司

Application of KCP gene in cervical cancer taxol sensibility detection

The invention relates to application of a KCP gene in preparation of a cervical cancer taxol treatmetn sensibility detection product. The detection product is a detection reagent or a detection kit. The detection reagent comprises a KCP gene sequence integrity detection reagent and / or a KCP gene expression product detection reagent. The detection product evaluates the sensitivity of a tested cervical cancer patient to taxol drug chemotherapy by detecting the sequence integrity of the KCP gene or the expression product of the KCP gene, a cervical cancer treatment new target spot is provided, and the application assists in the effect of taxol chemotherapy on the cervical cancer patient in advance.
Owner:BEIJING OBSTETRICS & GYNECOLOGY HOSPITAL CAPITAL MEDICAL UNIV

A simulation analysis method and device for space debris laser ranging effect

The invention discloses a simulation analysis method and device for laser ranging effects of space debris. The method aims at the time sequence of photons and judges whether the photons are detected according to the sequence of photons; the detection method is: within the uniform distribution range of 0-1, Generate random number δ, judge random number δ and single photon detection efficiency η=1‑e ‑1 If δ≤η, then the photon is successfully detected, if δ>η, then the photon is not detected, then continue to judge the next photon until all photon judgments are completed; based on the photon detection results, generate a simulated detection output signal. Using the invention can complete the simulation analysis of the space debris laser ranging effect without dividing the photons into intervals, and improve the consistency of the simulation effect and the actual measurement effect.
Owner:北京跟踪与通信技术研究所

A Yisu Embroidery Needle Method for Improving the Texture of Toner Sketch

The invention discloses Yisu embroidery stitches used for improving the texture of a carbon powder sketch. According to the invention, after determination of the color and type of a yarn accordingly used at the position of each needle hole for embroidering during actual embroidering, separate embroidering with each kind of yarns is carried out; plain stitches are used for embroidering as much as possible; stitch length from a starting needle hole to a dropping needle hole is 1 to 3 mm; for areas with obvious changes in color, point-stitch embroidering is carried out needle hole after needle hole, and the number of stitches in each square centimeter is guaranteed to be in a range of 60 to 100; and for areas with mild changes in color, short-line-stitch embroidering is carried out by skipping a part of needle holes. A computer can be used for gray scale analysis of the carbon powder sketch, so the desired colors and types of yarns can be more accurately determined, and selection of embroidering methods during actual embroidering is facilitated; and compared with conventional random stitch embroidering, the Yisu embroidery stitches provided by the invention allow a prepared embroideryto have texture more similar to an original picture.
Owner:长沙市伊飞湘绣有限公司

Method for creating weak-photosensitivity japonica rice germplasm

The invention provides a method for creating weak-photosensitivity japonica rice germplasm. The method comprises the following steps: (1) selecting a japonica rice line 1 with the genotype of hd1 + ehd1 + sdg725 and a japonica rice line 2 with the genotype of Hd1 + Ehd1 + SDG725 in the heading stage as parents; (2) performing continuous selfing after hybridization, and obtaining a recombinant selfing line group by using a single seed transmission method; and (3) screening homozygous families of different genotype combinations by using a molecular marker technology, and selecting families with small variation amplitude of full-heading period (days from sowing to full heading) and yield increasing potential under long-day and short-day conditions to obtain a new japonica rice strain with the genotype of hd1 + ehd1 + sdg725 (late-maturing line) or hd1 + ehd1 + SDG725 (early-maturing line) in the heading period. According to the low-sensitivity japonica rice strain cultivated by the method, the planting adaptability in southern rice areas can be improved, and the complex crop rotation requirements in different popularization areas can be selectively met. In addition, phenotypic selection of important agronomic traits in shuttle breeding and high-throughput genotyping of target genes Ehd1 and SDG725 are facilitated, and the breeding efficiency is improved.
Owner:ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS

Two-dimensional navigation path planning method based on vector electronic chart

The invention provides a two-dimensional navigation path planning method based on a vector electronic chart, comprising the following steps: selecting a sea area on the vector electronic chart, determining an unavailable arrival area, a necessary arrival point and a navigation path cost parameter; setting a starting point and an ending point on the selected sea area, storing the coordinate valuesof the starting point, the ending point and the necessary arrival point in a node library according to an arrival sequence; taking out two points from the node library to make connection between the two points, judging whether the obtained connection passes the unavailable arrival area or not, if not, taking the connection to be a candidate navigation path between the two points, if so, finding out points which is intersected with the connection and is not capable of arriving outside area from the selected sea area, repeatedly executing the step after coordinate values of found points are stored in the node library according to the arrival sequence; connecting the candidate navigation path between the two points in the node library to obtain all candidate navigation paths; calculating navigation cost of all candidate navigation path according to the navigation cost parameter; and taking the candidate navigation path with the minimum cost as the final navigation path.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI
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