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56results about How to "Clear logical relationship" patented technology

Programming language compiling method of PLC (Programmable Logic Controller)

The invention relates to the field of industrial control and particularly relates to a programming language compiling method of a PLC (Programmable Logic Controller). The programming language compiling method comprises the following steps: converting an instruction list, analyzing an instruction, generating an intermediate code and generating an object code. According to the method, a trapezoid language program is converted into an instruction list source program by utilizing an instruction list language as a medium according to the one-to-one correspondence relation between the trapezoid language and the instruction list language, and then an instruction list is further processed, compiled and translated into the object code, so that the language logic relation is clear, the writing format is simple, the code utilization rate is high and the compiling effect is good. The programming language compiling method is conductive to providing a soft PLC control scheme applicable to multiple hardware platforms and developing a development system applicable to multiple operating system hardware platforms. When using hardware platforms of different manufacturers as soft PLC operating systems, a user can use the development tool without relearning programming of a new hardware platform, so that a lot of time spent in relearning programming is omitted, and the method has great practical significance in PLC development.
Owner:SHANTOU UNIV +1

A method for constructing a main cable line shape of a three-tower suspension bridge with unequal main spans

The invention discloses a method for constructing a main cable line shape of a three-tower suspension bridge with unequal main spans. The method comprises the following steps of firstly, calculating suspender force by utilizing a rigid support continuous beam method; secondly, calculating the line shape of the main span main cable according to the tower top height difference closing condition of the main span two-bridge and the bridge tower top and main cable midspan height difference closing condition; according to the principle that the horizontal forces of the main cables on the two sides of each bridge tower are equal and the principle that the shortest suspenders of the main span and the secondary main span are equal, deducing the line shape of the main cable of the secondary main span and the elevation of the low tower; secondly, according to the principle that the horizontal forces of the main cables on the two sides of each bridge tower are equal, the height difference betweenside towers and cable saddle IP points is known, and deriving the main cable shapes of left and right side spans; and finally, deriving the main cable line shapes of the left and right anchor spans according to the known main cable tension at the splay saddle, the bending moment balance of the splay saddle by the dead weight of the splay saddle and the known height difference between the splay saddle IP points and the anchoring points. The structural system is attractive in appearance, clear in stress, and is economical and reasonable.
Owner:SOUTHEAST UNIV

Stable sleeve-dropping method for moveable sleeve of hot milling machine

The invention relates to a stable sleeve-dropping method for a moveable sleeve of a hot milling machine and belongs to the technical field of steel rolling. According to the method, a sleeve-dropping controller controls a sleeve-dropping process of a rear moveable sleeve according to the following steps: tracking the position of a strip steel tail; confirming a sleeve-dropping position; establishing a sleeve-dropping angle control function; and lastly, after detecting and confirming that the strip steel tail reaches the confirmed sleeve-dropping position, starting a moveable sleeve rod and simultaneously controlling a sleeve-dropping angle of the moveable sleeve rod according to the sleeve-dropping angle control function till the moveable sleeve drops to the position as high as a rolling level. According to the method, by organically considering a frame driving transmission speed together with the moveable sleeve motion control, in the process of slowly digesting the sleeve quantity, a moveable sleeve roller keeps a tensile force on the strip steel till the moveable sleeve completely drops off, and the drifting phenomenon in a throwing process is prevented while a hollow sleeve isprevented from being formed, thereby achieving the purpose of stably dropping the sleeve.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD

Low-voltage power distribution network topology reconstruction method and device

The embodiment of the present invention provides a low-voltage power distribution network topology reconstruction method and device, wherein the method comprises the steps of determining the incidencerelation vectors of the buses according to the sequential voltages of the buses and a linear regression equation of an Lasso algorithm; combining the incidence relation vectors of the buses into a correlation coefficient matrix, and determining a target correlation coefficient matrix of the correlation coefficient matrix via an and rule; when the Lasso algorithm does not satisfy a sufficient condition, determining a determination matrix of a voltage matrix by the preset function relationship; determining the positions of the elements greater than 0 in the determination matrix, and modifying the elements at the corresponding positions in the target correlation coefficient matrix as 0; determining the buses corresponding to the positions of the non-zero elements in the modified target correlation coefficient matrix as the buses that are directly connected in a zone area. According to the embodiment of the present invention, the calculation process of correcting the Lasso algorithm is simpler and more convenient, and the accuracy of a network topological diagram model established by the corrected matrix is higher.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +3

Independent enclosure body and manufacturing and installing method thereof

The invention provides an independent enclosure body and a manufacturing and installing method of the enclosure body and aims to achieve independent enclosure of a building in an industrialized mode. According to the technical scheme, a light-weight high-strength prefabricated wall part is provided. The prefabricated wall is used as a carrier, architectural ornament is loaded on the outer side, architectural heat insulation is loaded on the inner side, and doors and windows of the building are loaded at the same time. Modularization, productization, prefabrication and assemblage of the enclosure of the building are achieved in an integrated and independent mode of the enclosure, the ornament, energy conservation, the doors and the windows. Prefabricated walls are installed on the outer surface of the building so as to form the independent enclosure body, and the prefabricated walls, a building structure or additional inner walls form a composite wall body on the whole. The independent enclosure body encloses a building structure body on the outer side and so that an outer surface structure of the building is formed. The building structure body encloses in the independent enclosure body so as to form an inner independent structure body of the building. The independent enclosure body is suitable for outer enclosure projects of various buildings, particularly for various high-rise and multilayer civil and energy saving building projects which are newly built, and further suitable for maintaining and remolding projects of existing buildings.
Owner:朱宏宇

Intelligent substation fault diagnosis method based on probability weighting bipartite graph method

The invention discloses an intelligent substation fault diagnosis method based on a probability weighting bipartite graph method. The method comprises the steps that intelligent substation symptom information is obtained, and interrogation information is obtained according to practical needs of fault analysis; all the information obtained in the first step is subjected to priority classifying, the symptom information and the interrogation information are subjected to probability assignment, and a probability weighting bipartite cause-and-effect graph of a practical system is obtained; and according to the probability weighting bipartite graph obtained in the second step, a fault locating algorithm based on the Bayes formula is used for computing the probability of each fault which may happen, final fault locating is carried out, a fault element is determined, and diagnosis results are output. According to the method, the fault of a primary system of an intelligent substation can be diagnosed, meanwhile the fault of a secondary system can be diagnosed, a diagnosis process is deliberate and reliable, the diagnosis results are accurate, and the great novel fault diagnosis method is provided for intelligent substation secondary system fault diagnosis.
Owner:SHANDONG UNIV

Contaminated soil in-situ solidification stabilizing treatment system and method

ActiveCN103510506AThe process flow is simple and reliableSafe and reliable structureSoil preservationHydraulic motorComputer module
The invention discloses a contaminated soil in-situ solidification stabilizing treatment system and method. A hydraulic excavator main machine with a matched main machine and a hydraulic excavator main machine in a data monitoring system are connected with an even-mixing arm through a connecting base plate. Two fixed cylinder bodies which are arranged in a tilting-down mode are symmetrically arranged at the lower end of the even-mixing arm. Hydraulic motors are fixedly arranged inside the fixed cylinder bodies. The hydraulic motors are connected with rotating cylinder bodies through transmission devices. A plurality of stirring cutter boards which are arranged in a spiral-line mode are arranged on the outer walls of the rotating cylinder bodies. A compound air control material supplying device is connected with a medicament supplying device through a medicament supplying pipeline, a data cable, a multiphase flow conversion device and a medicament conveying system. Compared with the prior art, the contaminated soil in-situ solidification stabilizing treatment system and method have the advantages that the complete set of technological process is simple, rapid and reliable, the system devices are safe and reliable in structure, the even-mixing and stirring transmission efficiency is high, the torque is large, the stirring is even, the efficiency is high, quantification is achieved, the cost is saved, the depth is adjustable, the working range is expanded, and the automation degree is high.
Owner:三川德青工程机械有限公司

Method and system for generating disciplinary knowledge map based on disciplinary logic knowledge relation

The invention discloses a method and a system for generating a disciplinary knowledge map based on disciplinary logic knowledge relations. The method comprises a step of automatically generating knowledge points and connecting lines and a step of automatically generating knowledge relation lines. The step of automatically generating knowledge points and connecting lines further comprises: a substep of knowledge point configuration, used to generate chapter spatial data and configuration files; a substep of knowledge point connecting line generation, used to generate knowledge point connecting lines; and a substep of knowledge point spatial data generation, used to generate knowledge point spatial data. The step of automatically generating knowledge relation lines further comprises: a substep of knowledge relation configuration, used to generate logic knowledge relation configuration files; and a substep of knowledge relation line generation, used to generate knowledge relation spatial data. The method generates a disciplinary knowledge map meeting map characteristics according to logic description of knowledge structure and based on a geographic element spatial simulation technology, so as to provide convenience for a user to understand subject knowledge structure and visualization query.
Owner:SUZHOU ZHONGKE ZHITU INFORMATION TECH CO LTD

Pattern compiling and downloading test method and system for ATE equipment

The invention discloses a pattern compiling and downloading test method and system for ATE equipment, and the method comprises a compiling step: analyzing a pattern sequence file, obtaining a used board card slot and a corresponding Pin pin on the ATE equipment, carrying out the butt-joint conversion of a circuit behavior sequence according to a Pin pin definition file, partitioning the data into input circuit information, output circuit information, control circuit information and comparison circuit information, and generating corresponding compiled files; a test step: reading data in the input circuit information and the comparison circuit information by the Pattern board according to the compiled file, processing the data by the PE chip, and sending the processed data to the tested chip; enabling the PE chip to read the pin output of the tested chip through the data pin channel, processing the pin output and outputting the processed pin output to the Pattern board, and enabling the Pattern board to acquire a test result according to the output circuit information and the data in the comparison circuit information and storing the test result into the pin test register; and enabling the upper computer to perform statistical operation on the chip yield. According to the invention, no Pin range limitation exists, and the utilization rate of board card test channel resources and the parallel test efficiency are improved.
Owner:珠海芯业测控有限公司

Method for judging coronary artery branches in coronary artery segmentation of image and converting mask data into center line point set

The invention discloses a method for judging coronary artery branches in coronary artery segmentation of an image and converting mask data into a center line point set. The invention discloses a coronary artery image segmentation method based on hierarchical clustering, belongs to the field of cardiac coronary artery image processing, and aims to solve the problem of coronary artery branches in coronary artery segmentation of an image, select seed points for interlayer region growth, use a hierarchical clustering method to take a set of points grown in each layer of region as a current point set in the growth process, and perform clustering under the condition that the Euclidean distance is smaller than a threshold; when the clustering number is greater than or equal to 2, the point set number n < um _ max > of the maximum cluster is taken, and the total number of the current point sets is n < um _ total >; whether the num _ max/num _ total ratio falls into the interval of (0.4, 0.75)or not serves as the condition for judging whether branches exist or not, the effect is that the branches can be recognized and judged in the image data, the branches grow in sequence, the overgrowthphenomenon can be avoided, and the image processing precision is improved.
Owner:心医国际数字医疗系统(大连)有限公司

Distributed line loss determination and power grid monitoring equipment and method

InactiveCN107482767AClear hierarchy of monitoringImprove work efficiencyCircuit arrangementsThree levelComputer module
The invention discloses a distributed line loss determination and power grid monitoring equipment and method. The equipment comprises a main server, at least one second-level server connected with the main server and at least one third-level server connected with the second-level server, wherein the third-level server is at least connected with an external user terminal, the third-level server comprises an acquisition chip, a third-level metering module, a third-level memory, a third-level processing module and a third-level communication module, the second-level server comprises a second-level metering module, a second-level processing module, a second-level communication module and a second-level memory, and the main server comprises a communication module, a metering module, an analysis module, a monitoring module and a main memory. Data of the power grid can be conveniently acquired through three-level design, a line loss value can be acquired through calculation on the basis of the acquired data, the data is accurate, calculation is rapid, an abnormal data area can be found out through comparing an actual line loss value and a theoretical line loss value, an overhaul and maintenance instruction can be timely emitted, and power grid operation stability is improved.
Owner:STATE GRID CORP OF CHINA +2

Man-machine interaction system for drawing complete period project management trajectory diagram on line

The invention relates to a man-machine interaction system for drawing a complete period project management trajectory diagram on line. The man-machine interaction system includes a trajectory diagram panel establishing module, a project management specialty establishing module, a project node establishing module and a complete period project management trajectory diagram generation module, wherein the trajectory diagram panel establishing module is used for creating and managing a trajectory diagram panel; the project management specialty establishing module is used for creating and managing a project management specialty; the project node establishing module is used for creating and managing project nodes; the complete period project management trajectory diagram generation module is used for generating and displaying a complete period project management trajectory diagram after newly increasing the project management specialty and the project nodes on the trajectory diagram panel; and the complete period project management trajectory diagram is the trajectory diagram panel for the newly increased project management specialty and project nodes. Compared with the prior art, the man-machine interaction system for drawing a complete period project management trajectory diagram on line enables the user to directly see the whole trajectory information of the complete period for operation of the project, and has the advantages of being clear in content, being high in operationality of the task, and being high in the user experience degree.
Owner:SHANGHAI WISHBUILD INFORMATION TECH

Paver material conveying system with multiple working condition adaptation modes

The invention discloses a paver material conveying system with multiple working condition adaptation modes. The paver material conveying system comprises a left material conveying hydraulic control system, a right material conveying hydraulic control system and an electric control system, wherein the first proportional electromagnetic reversing valve (401) of the left hydraulic control system is respectively connected with a first logic control valve (201) and a first pressure compensation valve (301); a first overflow valve (101) is connected with the first pressure compensation valve (301); the second proportional electromagnetic reversing valve (402) of the right material conveying hydraulic control system is respectively connected with a second logic control valve (202) and a second pressure compensation valve (302); a second overflow valve (102) is connected with the second pressure compensation valve (302); the electric control system comprises a control console A1 connected with a controller A2, a left material conveying material level sensor B1, a right material conveying material level sensor B2, a left material conveying solenoid valve and a right material conveying solenoid valve. The paver material conveying system has the advantages of simplicity and convenience in control implementation and easiness in operation.
Owner:XCMG CONSTR MACHINERY

Method for converting extracted mask data containing coronary artery center line into center line point set

A method for converting extracted mask data containing a coronary artery center line into a center line point set comprises the steps that a root node is recognized, only one connected point exists in multiple neighborhoods, and a first point located at the highest point in the vertical direction serves as the root node and serves as a first determination point after conversion; multiple neighborhood connection points are sequentially tracked, a sampling rule that two points are spaced by a certain distance D is set and when the distance between the connection point to be judged and the previous determined point is smaller than D, the point is not put into the determined point list and directly jumps to the next connection point; when it is judged that the distance between the connection point and the previous determined point is larger than D, the point is put into a determined point list, and the father node relation of the point is recorded; when the connection points are judged to have branches, putting the branches into a determined point list no matter whether the distance requirement is met or not; when it is judged that only one connection point in front of the connection point exists, the connection point is a termination point of the branch; according to a conversion method, the logic relation between the points is defined, classification and judgment are carried out, and therefore accurate display of the image is achieved.
Owner:心医国际数字医疗系统(大连)有限公司

Circular stockyard scraper chain tensioning hydraulic system

The invention discloses a circular stockyard scraper chain tensioning hydraulic system. The circular stockyard scraper chain tensioning hydraulic system comprises an electric hydraulic pump and a pump opening protection one-way valve, an energy accumulator branch, a first pressure relay and the second pressure relay, and an oil return stop valve, wherein the electric hydraulic pump and the pump opening protection one-way valve are arranged between an oil outlet of an oil tank and an oil way of a hydraulic cylinder; the energy accumulator branch is used for achieving the shock absorption and pressure maintaining functions of an oil supply main path; the first pressure relay and the second pressure relay are arranged between a pump opening of the electric hydraulic pump and an inlet of the hydraulic cylinder, the first pressure relay is used for controlling the oil injection amount of the electric hydraulic pump, the second pressure relay is used for collecting pressure signals of the system, and when the pressure value of the system is smaller than a preset pressure value, the electric hydraulic pump is controlled to supply oil to the system for pressure maintaining; and the oil return stop valve is arranged on an oil return path between the hydraulic cylinder and the oil return port of the oil tank and is used for closing the oil return path when the oil injection amount of the system reaches a preset value. According to the system provided by the invention, by simplifying the composition of a control valve of a main oil way, the pressure maintaining mechanism of the system and the purpose of an energy accumulator loop are changed, the defects of an original system are overcome, and intelligent control is more favorably realized.
Owner:CHANGCHUN POWER GENERATION EQUIP PLANT

Stock yard contour line digitization method and system

The invention discloses a stock yard contour line digitization method and system, and belongs to the technical field of data processing. The method comprises the following steps: acquiring three-dimensional point cloud data of a stock ground; generating a blank point cloud template according to the boundary of the stock yard; after dimensionality reduction of the three-dimensional point cloud data, drawing the dimensionality-reduced data on the blank point cloud template to generate a data point cloud template; judging whether a blank area exists on the data point cloud template or not, repairing the blank area, and then smoothing the data point cloud template by adopting a fuzzy method; after repairing is completed, generating a contour line pool graph according to the data point cloud template; and converting the color of the data point cloud template, covering the contour line bool graph on the data point cloud template after color conversion, and adding external data for describingstock yard information to the data point cloud template to generate a contour line two-dimensional stock yard graph. According to the method, a complex three-dimensional model is converted into a simple two-dimensional model in a dimension reduction mode, and an operator can operate the method easily, conveniently and visually.
Owner:SAMSINO BEIJING AUTOMATION ENG TECH CO LTD +1
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