132results about How to "Meet the actual needs of the project" patented technology

The invention relates to a fully-automatic multi-functional multi-mode integral bag making machine which integrates centralized sealing, three-side sealing, four-side sealing, bottom adding, folding and self set-up, and zippers, and manufactures packaging bags with a plurality of functions and in a plurality of modes fully automatically. The fully-automatic multi-functional multi-mode integral bag making machine comprises a non-stop film connecting unreeling device, a splitting and folding forming frame device, a self set-up device, a front longitudinal sealing machine body device, a middle machine body device and a rear machine body device; and the devices are sequentially connected in order. According to the fully-automatic multi-functional multi-mode integral bag making machine, all functions of existing various automatic bag making machines can be realized, the price is relatively lower, the integration is high, manpower, equipment, power and oil are saved, the efficiency is high, and the bag making machine has higher practicality.

The invention relates to a relay protection real-time digital dynamic simulation test system based on IEC 61850. The test system comprises an upper computer, an electric system real-time digital simulator, a tested digital relay protection device and a data port. To solve the problem that according to an existing RTDS, an IEC 61850 module is not consistent with a digital relay protection device in China in the format of message data, a test port of the digital relay protection device which is based on the RTDS and can achieve data collection, data exchange and data processing is developed by means of a high-communication-precision chip and Verilog program design, and the test port, the RTDS, the upper computer and the tested digital relay protection device constitute the relay protection digital dynamic simulation test system based on the IEC 61850. As is proved by closed loop test researches and tests of a 220kV line digital protection device in a certain intelligent substation in Tianjin power grid, the relay protection real-time digital dynamic simulation test system completely meets actual requirements of projects.

The invention relates to a display visual angle adjusting device and an adjusting method thereof. The device comprises an image acquisition unit, a control unit and a driving unit, wherein the image acquisition unit, the control unit and the driving unit are successively connected; the image acquisition unit obtains a human face image and/or human body image before a display; the control unit, according to the human face image and/or the human body image, obtains an optimum observation visual angle and calculates the adjusting amount of the current observation visual angle of the display and the optimum observation visual angle; the driving unit, according to the adjusting amount outputted by the control unit, adjusts the display to be at the optimum observation visual angle; the driving unit comprises a connecting part hinged to the back of the display, a support connected with the connecting part, a base supporting the support, and a motor fixed on the connecting part for driving the display to rotate. According to the display visual angle adjusting device, an observer obtains better observation effects through the rotation of the display; the maloperation risks caused by visual fatigue of an operator is reduced; and the largest visual area and comfortableness can be obtained.

The invention relates to an existing railway survey method based on a total station. In the method, the total station and an electromagnetic wave reflection device are adopted to survey an existing railway. The survey method comprises the following steps: firstly arranging the electromagnetic wave reflection device at the center of the existing railway line to be surveyed by virtue of a traditional measuring square ruler; determining position of the total station, and surveying the line center by the electromagnetic wave reflection device to obtain distance (slant distance), horizontal angle and vertical angle of the surveyed line and 3D coordinates of survey points (X, Y and H) of the measured line (slope distance); and then analyzing and calculating the survey data by a PDA, and performing survey on line mileage, center line, traverse, elevation and other railway equipment. The existing railway survey method based on a total station reduces on-track operation times of operators, guarantees safety of surveyors, instruments and equipment, accuracy and reliability of the surveyed data, improves production efficiency of the existing railways, and alleviates labor intensity of the operators.

This invention discloses a kind of strapdown drilling dip-compass based on magnetic drag and rake angle sensor. Down-hole searching tube is composed of mechanical skeleton and hardware circuit boards. The hardware circuit board is installed in the mechanical skeleton. The said hardware circuit board is composed of three-axis magnetic drag sensor, two-axis rake angle sensor, own 24 bit A/D SCM, communication circuit, RS232 interface circuit and power circuit. It includes three-axis integration magnetic drag sensor, two-axis integration rake angle sensor, own A/D conversion SCM and the communications circuit which contacts the ground device. It can not only improve the measuring accuracy of the inclinometer, reduce its volume, low cost and can improve the efficiency of equipment production.

The invention provides a road identification and path optimization AGV (automatic guided vehicle) based on machine vision and a control system of the AGV. By the aid of machine vision, a speed-adjustable motor, an ultrasonic module and the like, automatic road identification and optimal path selection of the AGV are realized. A camera is used for acquiring road images, a main control system is used for identifying features points simply built on a movement path by PA (polyamide) adhesive paper, the path is automatically identified, the optimal path is selected by a Dijkstra algorithm, task signals in the driving process are transmitted by a remote control module, obstacles are detected by the ultrasonic module to trigger audible and visual alarm, and emergency brake is realized.

The invention discloses a large-angle oblique imaging aero-camera targeted target positioning method. In accordance with the problems that the shooting distance of a large-angle oblique imaging aero-camera is long, and the operating distance of laser distance measuring equipment is limited, and the invention provides a direct targeted target positioning algorithm which is independent of the distance measuring equipment. According to the position and the attitude information of a carrying aerial vehicle, measured by the carrying aerial vehicle POS ( position and orientation system) and frame angular position information measured by a position encoder in the aero-camera; a homogeneous coordinate conversion method is used for solving the direction of a target under a geodetic coordinate system; and an earth ellipsoid model and a digital elevation model are used for determining latitude and longitude information of the target point. According to the large-angle oblique imaging aero-camera targeted target positioning method disclosed by the invention, flight test data is used for verifying the validity of the target positioning algorithm; and when the flight height is 18000m, and the rolling angle of a shooting frame is smaller than 63 degrees, the target positioning circular probable error is smaller than 70m, so that engineering actual requirements can be met.

The invention discloses a vacuum combined surcharge preloading method settlement volume measurement method. The consolidation coefficient C[td] of each working state time interval is obtained by each settlement volume measured value s[it] of a plurality of working state time intervals; a mathematical average value is obtained by the consolidation coefficients C[td] of all the working state time intervals, so that an equivalent consolidation coefficient C'[v] is obtained, the consolidation degree U of the foundation soil layer at any moment can be solved in the consolidation process, and finally, the consolidation degree of the foundation soil layer at any moment can be solved. The settlement volume measurement method disclosed by the invention is simple, convenient and feasible, measurement accuracy can meet project actual requirements; only basic soil engineering parameters of the foundation soil layer are required to effectively calculate the consolidation settlement volume of a vacuum combined surcharge method soil body at any moment; the measurement method can be used for accurately calculating the settlement volume of a site, a road or similar conditions, accordingly, fill quantities can be accurately estimated during preloading method construction, the measurement method has a certain guide meaning for design and construction, thus the project quality is ensured, and the time limit of the project can be reasonably estimated in advance.

The invention discloses a parallel genetic algorithm steam pipe system model auto-calibration system based on a TBB (threading building block) and belongs to the field of steam pipe system model calibration and calculation. A hardware system comprises a relational database server, a real-time database server, an application server and an engineer station, wherein the relational database server is connected with the engineer station and the application server; and the application server is also connected with the real-time database server and the engineer station, so that data exchange among the application server, the real-time database server and the engineer station is kept. An application module comprises a relational database, a data acquisition module, a data result display module, a hydraulic thermal coupling calculation module and a pipe system model auto-calibration module. The parallel genetic algorithm steam pipe system model auto-calibration system has the advantage that quick and accurate steam pipe system model calculation is realized. Therefore, pipe system model calculation is more accurate, and analysis and maintenance on a pipe system are more facilitated.

The invention discloses a visualized and dynamic testing rule creating method oriented to parallel tests of a safety demanding system and belongs to the field of system testing. The method includes defining an isomorphic storage data structure of a type tree of a five-grade structure for all type tests of the safety demanding system; creating a current type tree and a comparison type tree according to the type tree; performing type tree copying or single node copying according to test needs; when nodes in the comparison type tree are added into the current type tree, judging whether homonymic nodes positioned under same subsystem nodes or test item nodes and identical in logic relation exist or not, wherein as for the homonymic nodes, re-adding is not performed. In the method, node operations on the current type tree are all recorded in a buffering area, and redundancy eliminating operation is performed before the node operations are submitted to a database. By the method, a universal storage structure for multi-type tests is designed, so that compiling time of testing rules and workload of testing personnel in multi-type spacecraft tests are reduced, and testing efficiency is improved.

The invention provides a rapid active disturbance rejection method for air cavity pressure based on an extended state observer. The method is suitable for intake and exhaust pressure control of a typical engine transition state test task, and mainly comprises the following steps of constructing a control model of an air cavity pressure system based on linear active disturbance rejection control, and estimating total disturbance (the sum of internal disturbance and external disturbance) influencing a controlled quantity in real time through an extended state observer, dynamically transforming an original uncertain system into an ideal integral series system through a special state feedback mechanism, estimating disturbance by utilizing natural advantage predictability and disturbance rejection of a linear active disturbance rejection controller, and updating the convergence rate and the global search capability through an improved whale algorithm, and immediately eliminating disturbanceby using the controlled quantity, so that the purpose of rapid and active disturbance rejection is achieved. Technical support can be provided for follow-up complex control technology research such as aircraft engine transition state test environment simulation multivariable control and dynamic decoupling control.

The invention discloses a dispersed anchoring device and a dispersed anchoring method suitable for a large-tonnage FRP inhaul cable. The dispersed anchoring device comprises an inner conical sleeve, asmall end cover plate located at a small end of the inner conical sleeve and a large end cover plate located at a large end of the inner conical sleeve. The small end cover plate is a first yarn splitting plate, the large end cover plate is a second yarn splitting plate, and at least one third yarn splitting plate is further arranged in the inner conical sleeve; rib holes distributed according toa first rule are formed in the first yarn splitting plate. The rib holes distributed according to a second rule are formed in the second yarn splitting plate. The rib holes distributed according to athird rule are formed in the third yarn splitting plate. A core of the anchoring device lies in overall bending and local splitting of the FRP inhaul cable in an anchorage area, creep deformation ofthe FRP inhaul cable under long-term load holding can be remarkably reduced, the FRP inhaul cable is prevented from being pulled out and damaged, meanwhile, a size of an anchorage device can be reduced, and manufacturing cost can be decreased.

The invention belongs to the technical field of aero-engine strength and service life design, and especially relates to an aero-engine turbine blade sampling clamp. The clamp is used for clamping a turbine blade with a preset sampling position and comprises a hexahedron-shaped body part, a mortise is formed in the top face of the body part in a sunken mode, a bolt hole for fixing is formed in thebottom of the body part, and the bolt hole for fixing perpendicularly penetrates into the mortise from the bottom face of the body part from bottom to top. According to the aero-engine turbine blade sampling clamp disclosed by the invention, the sampling of the turbine blade can be realized. The blade is clamped and fixed, the sampling position space angle is adjusted, a plurality of effective positioning faces are provided for cutting machining, standardization and consistency of sampling are guaranteed, then effectiveness and precision of obtained real blade mechanical property test result data are guaranteed, and the clamp can be applied to turbine blade real component performance obtaining and blade strength and service life design.

The invention discloses an evaluation index for the anti-shearing performance of a waterproof bonding layer paved on a bridge deck. According to the evaluation index disclosed by the invention, freezing and thawing cycle lateral stiffness ratio LSR is adopted for evaluating, wherein LSR is not smaller than 85%, LSR is the ratio of the lateral stiffness of a freezing and thawing cycle test specimen to the lateral stiffness of an unfreezing and un-thawing cycle test specimen, the lateral stiffness LS is the ratio of the peak load to the maximum relative displacement among layers when a waterproof bonding layer of tar sands or modified tar sands is subjected to shear failure, and the shear force and the displacement in LS index among the layers can be accurately tested, the operation is simple and convenient, thus popularization is easy. According to the evaluation index disclosed by the invention, the defects that in the current regulation of China, the triaxial compression shear strength test is difficult to operate and complicated in calculation, and the shear strength parameters c and phi have small difference are overcome; the lateral deformation resistance of the waterproof bonding layer paved on the bridge deck can be truthfully reflected; the LSR is also suitable for evaluating the anti-shearing performance of a bituminous mixture; the LSR integrates high temperature property, low temperature property and high stability of the bituminous mixture, and can comprehensively evaluate the pavement performance of the bituminous mixture.

The invention discloses a floor formed by combining cold-formed thin-wall C-shaped steel and straw plates and a manufacturing method. The combination floor is made from the two straw plates and the two pieces of cold-formed thin-wall C-shaped steel in a combination mode; the cold-formed thin-wall C-shaped steel is arranged between the straw plates, the straw plates and the cold-formed thin-wall C-shaped steels are bonded through high-strength structural adhesive, the high-strength structural adhesive forms the solidified bonded face, self-tapping screws for fixing the straw plates and the cold-formed thin-wall C-shaped steel are arranged at the solidified bonded face, sealing strips are arranged on the sides of the two straw plates and connected with the straw plates through screws, a plurality of rib strips are arranged on the connecting faces of the cold-formed thin-wall C-shaped steel, and a plurality of barbs are arranged on the connecting faces of the straw plates and engaged with the rib strips; the rigidity and the bearing capacity of a pure steel floor and a pure wood floor are improved, and the actual engineering requirements are met; the floor can be manufactured in a plant, site assembly is carried out, and the site construction time is largely shortened; the floor is compared with a traditional concrete floor ceiling and the like, and the self weight is small, the whole construction cost is low, the bearing capacity is high, and the ductility is good.

The invention relates to a unit load prediction method based on time sequence similarity, which comprises the following steps of 1) obtaining a current moment t0, obtaining a time period correspondingto a historical day according to a historical matching time length T (unit h), and obtaining a historical matching time sequence of the previous i-th day from a historical database; 2), performing the averaging processing on the time sequence according to the following formula by hours; 3), performing difference processing on the time sequence according to the following formula; and 4) carrying out time sequence similarity matching by using a weighted Euclidean distance method, and taking the minimum Euclidean distance as the principle to obtain the most similar day which is the previous s-thday. The method has the beneficial effects that a unit load online prediction model is established by using a time sequence similarity matching method; the method is an online analysis method, and more historical load change rules can be extracted; the method is high in prediction precision, can meet the actual needs of engineering, and is larger in traditional prediction error.

The invention discloses a micro-combustor for metal mesh heat storage and flame stabilization and a combustion method thereof. The micro-combustor for the metal mesh heat storage and flame stabilization comprises a combustor outer barrel and an igniter arranged in the combustor outer barrel; a combustor comprises a hollow blunt body, a multi-hole medium disc and a metal mesh, wherein the longitudinal section of the hollow blunt body is in the shape of an inverted triangle, the multi-hole medium disc is arranged on the hollow blunt body, the metal mesh is arranged on the multi-hole medium disc, and the bottom of the hollow blunt body is connected with a fuel channel. By means of the multi-hole medium disc, it is guaranteed that fuel is dispersed evenly, the superficial area of the fuel is increased, and the evaporation rate is sped up. A high temperature low-velocity backflow zone is formed near an outlet of the hollow blunt body, the dwell time of the fuel is increased, the metal mesh is taken as a heat storage medium and has the functions of absorbing heat and releasing heat, and the flame temperature can be maintained at a certain level; compared with other combustors, by means of the micro-combustor for the metal mesh heat storage and flame stabilization, a flame can be made to be attached to the metal mesh stably, sharply swing or up and down fluctuation of the flame does not occur along with changes of working conditions, and the stability of combustion of liquid hydrocarbon under micro scale is greatly promoted.

The invention discloses a redundant robot repeated motion planning method adopting a rapid double-power final state neural network. The method comprises the following steps that a desired trajectory r-d(t) of a robot end effector is given in cartesian space, an expected return angle theta -d(0) of each joint is given; for the repeated motion of a robot, an asymptotic convergence performance indexis adopted, a problem is solved by converting an quadratic optimization problem of redundant robot trajectory planning into a time-varying matrix equation, and the rapid double-power final state neural network is used as a solver. Under the condition of initial position offset, a repeated motion planning task for rapid finite-time convergence of the redundant robot is achieved. According to the provided redundant robot motion planning method adopting the rapid double-power final state neural network, rapid finite-time convergence is achieved, calculation precision is high, and implementation is easy.

The invention provides a universal comprehensive detection device and method for aviation mission electronic systems, and belongs to the field of system detection. The device comprises a detection client module and a logic detection unit; the detection client module comprises a detection parameter editing module, a detection standard configuration module, a detection command generation module, a detection result display module and a message communication module; the logic detection unit comprises a detection command analysis module, a detection execution module and a detection result judgment module; the method comprises the steps of editing and saving detection parameters, setting a detection standard configuration file, preparing for detection, executing detection, generating a detection command, interpreting the detection command, judging the position of a detected host and performing corresponding processing, and processing a detection result. The universal comprehensive detection device and method have the following advantages that comprehensive detection is performed on hosts to be detected of subnets of all levels and of multiple models and multiple system types, the universality and the cross-platform capability are improved, and the working process of the comprehensive detection is simplified.

The invention provides an underwater anchor rod construction method. Anchor rod construction is carried out on an underwater hydraulic structure through the work procedures of arrangement of an overwater platform, drilling lofting, installation of an underwater sleeve pipe, formation of an anchor rod installation hole in the sleeve pipe in a drilling mode, underwater installation of the anchor rod through a drilling rod, blockage and sealing of a hole opening, underwater anchor rod grouting, removal of the drilling rod and the like. By means of the underwater anchor rod construction method, under the condition that the underwater structure needs repairing or reinforcing, construction can be directly carried out with water, and the actual requirements of a project are met.

The invention relates to a redundant robot repetitive motion planning method based on a finite interval neural network. The expected trace rd(t) of a robot tail end actuator is provided in the Cartesian space, and the expected returning angle theta d(0) of each joint is provided as well. Asymptotic convergence property indexes are adopted for the repetitive motion of a robot, the quadratic optimization problem of trace panning of the redundant robot can be converted to solving a time-varying matrix equation, and the finite interval neural network can work as a solver. The method achieves finite-time convergent repetitive motion planning of the redundant robot under the condition of initial position deviation.