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

Traffic internet of things (IOT) layering system architecture based on information gathering

The invention discloses a traffic internet of things (IOT) layering system architecture based on information gathering. The layering system architecture provided by the invention comprises an entity physical layer, a network layer, a transmission layer, a foundation application layer and an information gathering layer. The layering system architecture provided by the invention is a height abstraction for various different physical networks, thus a uniform traffic IOT system architecture is provided for a plurality of traffic modes such as railways, waterways, highways and the like, and the transparence of the underlay network technology to an user or an application program can be achieved. According to the invention, an information system architecture which is uniform and cooperative and can provide uniform service is established, thus universal network service is provided for users; a fusion architecture is provided for the compatibility of various traffic IOT platforms; and a good foundation is laid for the compatibility of the existing traffic IOT and other region traffic IOT.
Owner:NANJING UNIV

Website navigation tool system

The invention discloses a website navigation tool system. A user interface of the website navigation tool system adopts a classified catalog guide module with a multilayer guide structure to manage a classified catalog of network resources. According to an optimal scheme, a network resource class catalog and a network resource label list are separately displayed by using a multi-window display method, so interference of useless information is reduced to the greatest extent. Meanwhile, the website navigation tool system is provided with a website classification searching engine which can search various types of websites, forums, blogs or web pages, and the website navigation tool system is quite convenient to use. A united searching engine or an accurate searching engine can be introduced, so the website navigation tool system is high in searching function strength and convenient to operate.
Owner:张文广

Electronic document generating and displaying method and apparatus

The invention discloses an electronic document generating and displaying method and apparatus. The method includes the steps of obtaining an electronic document data packet, wherein the data packet comprises page layout description information, content stream description information and resource description information of an electronic document; performing page layout on a display page according to the page layout description information; determining the content to be displayed and a display style according to the content stream description information and the resource description information; performing layout and displaying the content to be displayed in the display page on which the page layout is performed in accordance with the display style. By means of the electronic document generating and displaying method and apparatus, the certainty, flexibility and freedom on the layout and display of the electronic document can be obtained.
Owner:ALIBABA GRP HLDG LTD

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

Navigation electronic map data processing method and storage method based on same

The invention provides a processing and storage method for navigation electronic map coordinate data. The method comprises the following steps of: establishing an external rectangle externally connected with an electronic map, and recording the coordinates of one peak; calculating and storing relative coordinates of electronic map data to be acquired relative to the peak; forming a map set by using a set of the processed geographic data, and making a plurality of data files; partitioning each data file into map sheets, and establishing a map sheet node tree; and finally, establishing a medium control file in a storage medium, and storing the electronic map data into the storage medium. By using the processing and storage method, the storage space is saved, and the storage pressure of the storage medium is greatly reduced; and on the other hand, because the medium control file is established for storage management in the storage method, the logic relationship of the electronic map data in the storage medium is compact and clear, the corresponding electronic map can be quickly and conveniently searched, and the response time in the map set switching process is greatly shortened.
Owner:LINKTECH NAVI TECH

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

Ultrahigh-frequency RFID tag digital baseband low-power-consumption system based on EPC/C-1/G-2 standard

The invention discloses an ultrahigh-frequency RFID tag digital baseband low-power-consumption system based on an EPC / C-1 / G-2 standard. According to the system, a power consumption management module is added and used for performing dynamic power consumption management, a gated clock is adopted to perform power consumption control on other modules, and corresponding module clocks are started up andshut down according to demands to lower power consumption. The system is divided into all the independent modules according to a UHF RFID protocol of the EPC / C-1 / G-2 standard and functions, a power consumption control unit is designed, the corresponding module clocks are started up and shut down according to the demands, and power consumption reduction is realized by use of an asynchronous counter, the gated clock, a Gray code, a parallel CRC calculation method and other methods.
Owner:重庆湃芯微电子有限公司

Low power consumption architecture system of ultra-high frequency passive RFID digital baseband

The invention discloses a low power consumption architecture system of an ultra-high frequency passive RFID digital baseband. The system comprises a radio frequency analog front end, a digital baseband processor part and a memorizer; the radio frequency analog front end is mainly used for converting AC radio frequency energy received by an antenna into DC energy available for other circuits of a label through a rectifying circuit, recovering data transmitted by a reader from the received radio frequency through a detection circuit, and producing a clock signal for driving the work of the digital baseband processor part through a clock production circuit, and modulating and sending the signal returned by the label; the protocol processing is performed through the main load of the digital baseband processor part; and the memorizer is used for memorizing related useful information. Through the improvement, the structure can effectively and uniformly distribute the power consumption of theelectronic label to the whole work time by combining with a power supply management mechanism including a gated clock, thereby reducing the maximum instant power consumption.
Owner:重庆湃芯微电子有限公司

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

Speech recognition network multimedia player system and method

The present invention discloses a speech recognition network multimedia player system and method, wherein the system is provided with an audio information receive module, an audio information storage module, an instruction information storage module, and a control module. The audio information receive module receives an user speech command and then transfers the user speech command into audio information received by a network multimedia player, the control module searches whether the audio information storage module has the audio information or not, if having, a corresponding instruction stored in the instruction information storage module is executed, otherwise, the user is prompted to execute a related instruction. After executing the related instruction, the control module stores the audio information and the instruction information in the audio information storage module and the instruction information storage module separately. The system enlarges the function of the network multimedia player, is convenient to user and achieves an aim of numeric household intelligent.
Owner:广州番禺巨大汽车音响设备有限公司 +1

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

Digital twin city simulation deduction method and system

PendingCN114297850AExpand the theoretical connotation of simulation deduction abilityClear logical relationshipData processing applicationsDesign optimisation/simulationComputer scienceSimulation algorithm
The embodiment of the invention discloses a digital twin city simulation deduction method and system, and the method comprises the steps: obtaining the city basic data of a target digital twin city when a simulation deduction request of the target digital twin city is received, and building a data environment; and calling a simulation algorithm to process the urban basic data, and constructing to obtain a simulation deduction model. According to the technical scheme provided by the embodiment of the invention, the theoretical connotation of the digital twinborn city simulation deduction capability is expanded, the simulation deduction key task and logic relationship are clarified, and the simulation deduction capability construction theory and standardization level are improved, so that industrial scholars are guided to deeply cognize the digital twinborn city simulation deduction.
Owner:北京软通智慧科技有限公司

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

Multi-sensor multi-communication method based on EGIS (Environment Geographic Information System)

The invention provides a multi-sensor multi-communication method based on an EGIS (Environment Geographic Information System). A system has a sensor interface communication function, a wired / wireless data communication function, a positioning and navigation function and a situation plotting function, and the functions are tightly combined with a data stream-oriented design method, so that a complete data processing system integrating a data acquiring function, a data processing function and a data distributing function is formed. The system comprises a multi-sensor software integrated module, a multi-communication software integrated module, a positioning and navigation module, a situation plotting module and a data storage and management module. Based on the five functional modules, a data stream-oriented system software framework is realized.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

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

Construction period prediction method based on tunnel engineering progress slope diagram and compilation method

The invention discloses a construction period prediction method based on a tunnel engineering progress slope diagram and a compilation method. According to the tunnel engineering progress slope diagram compiled by the method, in the aspect of tunnel construction period progress calculation, any working face and the total construction period can be quickly and accurately calculated by using the tunnel engineering progress slope diagram, and each time node can be quickly inquired; in the aspect of construction plan arrangement, the resource input situation can be accurately reflected, the logicrelation is clear, constructors can quickly understand the plan making intention and construction key points, and reasonable allocation of mechanical equipment, materials and personnel is facilitated;in the aspect of progress plan management, the actual construction progress and the plan are correspondingly expressed in the same table, the progress plan deviation is inquired in real time, measures are taken in time, and the construction plan is corrected.
Owner:CCCC SHEC DONGMENG ENG CO LTD

Electric multi-locking switch room chassis device

The invention discloses an electrical multi-locking switch chamber chassis device, comprising a ground knife switch part, a circuit breaker part and an electromagnetic lock part. The electromagnetic lock part comprises an electromagnetic lock switch and an electromagnetic lock coil for controlling the on / off of the electromagnetic lock switch. The ground knife switch part is electrically connectedwith an external power supply module and the electromagnetic lock coil separately to supply power from the power supply module to the electromagnetic lock coil. The circuit breaker part includes a first circuit breaker switch and a second circuit breaker switch. The first circuit breaker switch is connected in series with the ground knife switch part. The second circuit breaker switch is connected in series with the electromagnetic lock switch to form a series circuit, and the series circuit is electrically connected with a chassis control module to provide the chassis control module with a closing judgment signal to control the operation of a chassis. The design has the characteristics of clear control logic and easy operation and achieves the multi-protection of the chassis electricallyat the same time to prevent injury to on-site personnel.
Owner:GUANGDONG MINGYANG ELECTRIC CO LTD

Vehicle control dynamic imitation learning algorithm based on surround vision

The invention provides a vehicle control dynamic simulation learning algorithm based on surround vision and aims to solve the problem that a current condition simulation learning model in the field of automatic driving is poor in performance in a dynamic environment. According to the model, firstly, image features of continuous four frames of forward images are extracted by using a residual network, and then fusion feature vectors are obtained from the image features through an LSTM network. and dynamic environment feature vectors are obtained by combining the fusion feature vectors and side image features extracted by the residual network. Aiming at different navigation conditions, different decision networks are used for predicting the vehicle speed and the steering wheel angle, and finally a proportional integral control method is used for achieving vehicle longitudinal control. The DSCIL model successfully solves the problem of wrong mapping of low speed and low acceleration, the situation of low acceleration caused by low speed is completely eliminated; and the DSCIL model extracts a dynamic obstacle state by using multi-frame forward visual information, so that the performance of the model in a dynamic driving environment is improved.
Owner:NANJING XIAOZHUANG UNIV

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

Angle increment optimization method for rolling pendulum seeker tracking loop

The invention relates to an angle increment optimization method for a rolling pendulum seeker tracking loop, which comprises the following steps that when an absolute value of a relative motion range of a rolling frame is less than or equal to Pi / 2, calculated angle position instructions of the rolling frame and a pendulum frame are outputted directly; when the absolute value of the relative motion range of the rolling frame is (Pi / 2, 3Pi / 2], the angle position instruction of the pendulum frame is minus; the absolute value of the relative motion range of the rolling frame is controlled to be less than Pi / 2; and when the absolute value of the relative motion range of the rolling frame is (3Pi / 2, 2Pi), a limiting condition of the rolling frame is allowed to optimize an output instruction. According to the angle increment optimization method for the rolling pendulum seeker tracking loop, the provided angle position instruction has a definite, single target directional relation in a tracking range of a seeker; a logical relation is clear; a solution process does not require a large number of matrix operations; hardware is light in burden; and the real-time performance is good.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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