29results about How to "Improve speed" patented technology

The invention discloses a rapid fault isolation method integrating protection, measurement and control of a box-type substation, particularly relates to the technical field of fault isolation of a power distribution network, and aims to solve the problem that an existing box-type substation is not complete in protection action information, disturbance exists in measurement and a primary wiring relation is complex. The problems of difficulty in timely and accurate judgment of a fault section, large isolation range, insufficient supply guarantee of important users and lack of traceable evidence chain in a fault processing process are solved. The method comprises the following steps: dividing sections according to primary switches and cable joints in a box-type substation, establishing a section-level topology model for unified time service and fault evidence fingerprints bound with protection configuration, scoring operation slices based on section fault hypothesis and a theoretical event mode, and solving a minimum isolation switch set under isolation constraint, so as to obtain a minimum isolation switch set; therefore, when the protection action is incomplete, the measurement is disturbed and the wiring is complicated, the fault section can still be locked, and an isolation scheme considering the user supply guarantee and the electrical safety boundary is generated, so that the fault isolation correctness and rapidity are improved.

The invention discloses a force-position coupling control method and system for a magnetic-pneumatic suspension servo device, and relates to the technical field of ground microgravity experiments of space mechanisms. After the sling inclination angle detection device is used for detecting the angle of the sling deviating from the numerical direction, the position following controller drives the omni-directional wheel to conduct position correction based on deflection angle feedback, meanwhile, the constant force compensation controller drives the constant force compensation motor to conduct tension adjustment through the deflection angle feedback and tension feedback, and therefore higher-precision gravity unloading is achieved.

The application discloses a kind of based on mixed optimization's ore-heating furnace cluster load collaborative control method and system, the method includes: real-time acquisition in each ore-heating furnace of cluster multiple-source heterogeneous time series data, dynamic construction is fused state characteristic index by attention fusion model, and optimization characteristic parameter is calculated based on fused state characteristic index;The total regulating power of ore-heating furnace cluster is obtained, and the optimization characteristic parameter and working condition self-adaptive dynamic constraint condition of each ore-heating furnace are combined, and dynamic power distribution model is constructed to generate individual power regulation instruction of each ore-heating furnace;Each ore-heating furnace is regulated by executing corresponding individual power regulation instruction;According to the actual power value of each ore-heating furnace after power regulation, the actual total power is calculated, the deviation of actual total power and total regulating power is obtained and feedback correction is carried out according to the deviation.The application realizes the balanced regulation of ore-heating furnace cluster power by constructing the optimization characteristic parameter and working condition self-adaptive dynamic constraint condition of ore-heating furnace.

The invention relates to the technical field of electric energy routers, in particular to a power distribution area flexible mutual aid system based on an electric energy router, and the system is characterized in that a DC bus in a flexible mutual aid device is connected with an external power distribution area through a plurality of bidirectional DC / AC ports, and is used for completing electrical coupling and power intercommunication; the plurality of bidirectional DC / AC ports are connected with the direct current bus in parallel, the direct current bus is connected with an energy storage port and a photovoltaic port, the energy storage port is communicated with an external energy storage device, the photovoltaic port is communicated with an external photovoltaic device, and the flexible mutual aid device is communicated with an external power grid dispatching through a controller. According to the invention, normalized flexible interconnection between feeder lines is realized through the flexible mutual aid device, potential safety hazards caused by frequent displacement of a conventional switch based on an interconnection switch are avoided, the control flexibility and rapidity of the power distribution network are improved, and the power distribution network has the advantages of open-loop operation and closed-loop operation at the same time.

The utility model relates to a kind of modularization superposition type heavy vehicle wheel auxiliary support moving mechanism of road clearing equipment technical field, including supporting wheel frame, wheel shaft and gyro wheel group, supporting wheel frame includes a group of side support, several parallel support connecting rods are fixed between two side supports, the arc-shaped support portion capable of supporting heavy vehicle wheel is formed between each support connecting rod, and it further includes at least one modularization cushion block capable of being placed on arc-shaped support portion.The utility model is matched with modularization cushion block by the supporting wheel frame of split design, can sequentially stack modularization cushion block on supporting wheel frame, so as to match the wheel of different vehicle models and its various accident states (including flat tire, no tire, no tire and no steel ring, no hub etc.), wheel can be raised according to the actual situation of wheel and its various accident states, so that each wheel of accident vehicle is at the same height, while avoiding the relative motion of wheel and supporting wheel frame, thereby greatly improving the safety, rapidity and effectiveness when wrecker clears obstacles.

The invention provides a mine wireless communication link prediction control method and system, a medium and a product, and relates to the technical field of communication control. The method comprises the following steps: firstly, acquiring operation paths and time of mobile communication nodes such as a mobile mine car, predicting a space-time trajectory sequence of each node in a future preset time period in combination with a full-mine-area task route distribution diagram, and simulating a communication relative space position between the nodes at each moment according to the space-time trajectory sequence; calculating a node spacing, judging a shielding condition, screening effective links, and selecting the link with the minimum distance as an optimal link at each moment; and finally, extracting an optimal link time window and a target node combination to generate a communication space-time mapping table, issuing the communication space-time mapping table for the node to plan a transmission task, and controlling the node to access link transmission when a starting point of the time window is reached, thereby realizing advanced planning and accurate management and control of a communication link.

The application discloses an avionics system fault diagnosis method and device based on fault propagation, comprising the following steps: constructing an architecture model of an avionics system, constructing a fault propagation model, traversing the fault propagation model, obtaining fault information of an airborne maintenance system, obtaining operation information and operation phenomena generated in a line maintenance process, inputting the operation information generated in the line maintenance process into the fault propagation model, obtaining a fault propagation model after line maintenance, traversing the fault propagation model after line maintenance, obtaining cockpit effects of the fault propagation model, obtaining cockpit effects of the fault propagation model after line maintenance, and finally locating a fault source according to the above information. The application considers the problem of fault cross-component and cross-system propagation caused by the complexity of the avionics system, and improves the accuracy and rapidity of fault source positioning caused by fault propagation.

The invention relates to an oxygen distribution switch and an intelligent gas path distribution system thereof in the technical field of gas flow distribution control. The oxygen distribution switch comprises a distribution body and two control mechanisms, an inlet C and an inlet B are formed in the two sides of the distribution body, cavity grooves are formed in the two end faces of the distribution body, the groove walls of the two cavity grooves are communicated with a D1 through opening and an E outlet, a first top protruding part is arranged at the groove bottom of each cavity groove, and first vent holes are formed in the top faces of the two first top protruding parts; each control mechanism comprises a valve body, an inlet A and a port D2 are formed in the outer end face of each valve body, the ports D2 are communicated with the ports D1, a sliding groove is formed in the inner end face of each valve body, a containing groove is formed in the groove bottom of each sliding groove, second top protruding parts are arranged at the groove bottom of each containing groove, second vent holes are formed in the top faces of the two second top protruding parts, and a movable iron core is arranged in each sliding groove in a sliding mode; a third vent hole is formed in the movable iron core, an elastic element is arranged in the containing groove, and the valve body is sleeved with an electromagnetic coil. The distribution switch is compact in layout and small in occupied space, and the system can automatically distribute oxygen gas path flow according to requirements.

The invention relates to the technical field of constructional engineering, and provides a personnel post matching method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring project dynamic information, personnel description information of to-be-matched personnel and post description information of to-be-matched posts; determining a personnel feature vector of a to-be-matched personnel according to the project dynamic information, the personnel description information and a plurality of pre-constructed evaluation dimensions, and determining a post feature vector of a to-be-matched post according to the project dynamic information, the post description information and the plurality of evaluation dimensions; and according to the personnel feature vector and the post feature vector, determining a matching result between the to-be-matched personnel and the to-be-matched post. According to the method, the weight of the dimension parameter can be dynamically adjusted according to the dynamic information and actual requirements of different projects, so that the matching result better fits an actual engineering scene. The one-sidedness of judgment purely depending on experience is avoided, and the accuracy and rationality of personnel post matching are effectively improved.

The utility model discloses a bean curd brine making raw material dissolving tank which comprises a mixing tank, a stirring mechanism is installed in the mixing tank, a fixing frame is fixed to one side of the mixing tank, a hydraulic lifting mechanism is installed at the upper end of the mixing tank, two movable plates are connected to the fixing frame in a sliding mode, the hydraulic lifting mechanism is connected with the movable plates, and the hydraulic lifting mechanism is connected with the movable plates. A crushing tank is fixed to the upper ends of the moving plates, blanking hoses are connected to the lower end of the crushing tank, the blanking hoses on the same side penetrate through the moving plates on the same side and are connected to the upper end of the mixing tank, and two crushing mechanisms are installed on one side of the upper end of the fixing frame. According to the magnesium chloride dissolving device, magnesium chloride can be rapidly dissolved, the dissolution sufficiency and comprehensiveness of the magnesium chloride can be guaranteed, accumulation of the magnesium chloride is avoided, the processing rapidity is greatly improved, and the sufficiency and quality of the dissolved solution are enhanced.

This disclosure proposes a method and apparatus for assisted driving of a vehicle. The method includes: acquiring vehicle steering data and an environmental image along the vehicle's direction of travel in real time; predicting the vehicle's real-time trajectory at a remote location based at least on the steering data; combining the predicted real-time trajectory with the corresponding environmental image to generate an augmented image; and presenting the augmented image to the driver in real time. This method and apparatus can improve the reliability, speed, and safety of remote vehicle control through augmented reality technology.

The utility model discloses a long-distance material lifting system of a heading machine, which solves the problem that the efficiency of transferring materials of the heading machine from the tail part of equipment to a host area is low under the working conditions of narrow space, long distance, small turning and large gradient in the prior art. The long-distance material hoisting system of the heading machine comprises a crane track arranged on a trolley, the crane track is connected to the top of the trolley through a flexible hoisting piece, and a movable crane is arranged on the crane track; the crane track is formed by hinging a plurality of short-distance track sections end to end. Compared with the prior art, the crane track formed by hinging a plurality of short-distance track sections end to end is matched with the flexible hanging piece to be connected to the top of the trolley, so that the two short-distance track sections can relatively swing and pitch within a certain range to adapt to the working conditions of small turning and longitudinal curve.

This invention discloses a longitudinal anti-interference control method for a small fixed-wing unmanned aerial vehicle (UAV) based on the Actor-Critic framework. The steps are as follows: First, a longitudinal model of the UAV under disturbance is established; second, a performance function is designed to evaluate the control performance of the UAV, the Critic approximates the nonlinear performance function, and the Actor learns the optimal control law that minimizes the performance function; third, a disturbance neural network is added to estimate the disturbance of the UAV in the worst-case scenario, and a momentum neural network is used to improve the learning speed. This invention uses reinforcement learning technology and a neural network to approximate the performance function with the optimal control law, achieving adaptive control of the UAV under disturbance. This invention not only enhances the anti-interference capability of the UAV but also accelerates the convergence speed of the reinforcement learning control law.

The application relates to the technical field of electrical engineering fault diagnosis, and provides a fault diagnosis method and system of a cascade H-bridge converter. g dc The system is determined whether an open-circuit fault of a power device occurs and a suspicious fault tube pair is determined by comparing with a preset threshold value; the DC bus voltage equalization control is cut off from the system, the DC bus voltage equalization control of the remaining modules except the fault module is restored after the fault module is located; the fault module is short-circuited by changing the driving signal of the power device of the fault module, and the specific fault switch tube is located; the system is restored to stable work by using the redundancy of the modulation coefficients of other modules. After the open-circuit fault occurs, the fault device is quickly, efficiently and reliably located and the system is restored to normal work by temporarily cutting off the voltage equalization control.

The invention discloses a pressure data soft transmission and closed-loop control method for a deep pressure-maintaining coring device, and belongs to the technical field of well drilling coring, and the method comprises the steps: carrying out the filtering processing of a pressure and temperature sequence in a pressure-maintaining chamber, and outputting a filtering pressure, a filtering temperature, a pressure change rate and a temperature change rate; performing temperature compensation on the pressure change rate to obtain a compensated pressure change rate; based on the compensated pressure change rate, the leakage equivalent pressure change rate and the rock core gas outlet equivalent pressure change rate are obtained; counting an instruction response success rate; in combination with the filtering pressure, the equivalent change rate, the command response success rate, the historical pressure deviation accumulation and the target pressure, predicting future pressure and calculating the number of control commands needing to be sent; and the instruction is sent to an underground execution mechanism, response is monitored, an instruction success mark is updated, and the next control period is entered. According to the invention, online separation of pressure change causes and instruction loss compensation are realized, and the precision and reliability of pressure control are improved.

The application discloses a quick well killing method without drill bit at well bottom, and relates to the technical field of well control of oil drilling. First, basic data is collected, initial state calculation of well killing is carried out according to the collected basic data, then suitable well killing fluid density is designed according to the initial state, casing pressure is adjusted so that the well killing fluid is divided at the drill bit, well killing parameters are designed through the well state, well killing progress is judged through the standpipe pressure and the casing pressure, and well killing is finished after the contaminated drilling fluid is completely discharged through circulation of the well killing fluid. The application proposes the quick well killing method without drill bit at well bottom, which has certain guiding significance for well killing in the case that the drill bit is not at the well bottom.

The application relates to the technical field of nonlinear electromechanical system control, and discloses a rotary inverted pendulum composite nonlinear feedback tracking control method. The method establishes a nonlinear dynamics model based on the mechanical structure parameters of a rotary inverted pendulum and the driving relationship of a direct-current motor, linearizes the model near a balance point of a pendulum rod, and obtains a state space model with motor control variables as inputs; according to the coupling relationship between each state variable and a control target, the system state vector is decomposed into a pendulum rod stable ring state vector and a rotary arm tracking ring state vector, the pendulum rod stable ring constructs a pendulum rod stable control law to keep the pendulum rod upright, and the rotary arm tracking ring constructs a composite nonlinear feedback control law on the basis of the pendulum rod stability. The composite nonlinear feedback control law takes the rotary arm position tracking error as a regulating variable, adjusts the feedback strength through a non-positive bounded nonlinear function, strengthens the damping action when the rotary arm approaches the target position, thereby reducing the overshoot and oscillation in the position tracking process, and improving the rapidity and stability of the tracking response.

The application provides a pipe network operation monitoring system and method, which comprises a pressure detection device and an intelligent detection host; the intelligent detection host comprises an intelligent controller, and the intelligent controller comprises a fuzzy controller; adjacent valve wells of a pipe network are taken as a section, and the pressure detection device is arranged in the valve well at the head and tail of each section; the pressure detection device measures the pipe network operation pressure in real time and transmits the pipe network operation pressure to the intelligent controller; the intelligent controller processes the received pipe network operation pressure to obtain an exponential moving average value, obtains an average maximum value based on the exponential moving average value, and integrates the difference between the real-time measured pipe network operation pressure and the average maximum value to obtain a pressure integral value; the fuzzy controller takes the pressure integral value and the real-time measured pipe network operation pressure as inputs, performs fuzzy reasoning, and judges whether to shut down the valve or to issue an alarm.

The invention discloses a transformer substation high-voltage chamber power equipment insulation fault early warning and positioning method based on supercomputing, and relates to the technical field of transformer substation early warning and positioning, and the method comprises the following steps: S1, collecting partial discharge signals in real time; s2, classifying signal types; s3, narrowband and broadband signal processing; s4, positioning a partial discharge source space; and S5, triggering graded early warning. According to the method, adaptive algorithms are adopted for wide-band and narrow-band partial discharge signal characteristics, the accuracy of direction-of-arrival estimation is improved through sub-array optimization and focusing matrix improvement, and a complex signal environment is effectively adapted; the positioning algorithm is fused with population initialization so as to avoid a local optimal solution and realize accurate spatial positioning of a partial discharge source; according to the overall scheme, early accurate recognition, real-time positioning and reliable early warning of faults are achieved, scientific support is provided for equipment operation and maintenance, major accidents of a power grid are effectively prevented, and safe and stable operation of a power system is guaranteed.

To address the inability of existing low-altitude radars to effectively suppress the effects of ground clutter and sea clutter, this invention presents a design method for an integrated low-altitude anti-jamming transceiver adaptive radar system. This method outlines the structure and function of the new system, and provides a method for transmitting multiple orthogonal signals with control delays for target detection, as well as a secondary software mixing method. Based on the signal processing results after software mixing, the range, velocity, and acceleration of the detected target and interference are obtained. Using this information, the interference from ground clutter and sea clutter is significantly suppressed, improving the system's speed and reliability.

This invention relates to a roll-type sampling kit for use in collecting samples for testing, comprising: a fixing frame consisting of a length component; a collection sheet wound and fixed to one end of the fixing frame for attaching the sample after collection; a support frame for clamping during collection, configured such that the fixing frame and the collection sheet protrude to one side together; and a cover detachably configured to surround the fixing frame and the collection sheet protruding from the support frame. According to the invention, by using materials such as paper with excellent absorbency, not only is the sample yield excellent, but user resistance is minimized through safe use. The contact area can be increased to improve the sample collection volume and maintain stable sample attachment, thereby enabling smooth and accurate sample testing. Separation of the sample collection portion for testing is easily achieved, thus improving the speed and convenience of sample testing.

The application discloses an intelligent temperature control method and system for an injection molding machine, which collects temperature values of a melt conveying section, a solid melting section and a solid conveying section of a material bucket of the injection molding machine, sets temperature target values of the three sections, predicts actual control values of the temperatures of the sections and a temperature target value of the whole material bucket of the injection molding machine and a temperature prediction value of the whole material bucket of the injection molding machine according to the temperature target values of the sections and temperature values collected by all the three thermocouples, outputs ideal control amounts of the temperatures of the sections of the material bucket of the injection molding machine and a temperature control amount of the whole material bucket of the injection molding machine after a temperature controller, and obtains temperature control amounts of the sections by fusing the two, acquires real-time compensation control amounts of the temperatures of the sections, and realizes decoupling compensation control on the temperature of the material bucket of the injection molding machine by combining the temperature control amounts of the sections and the real-time compensation control amounts of the temperatures. Compared with the prior art, the application can improve the accuracy, rapidity, robustness and comprehensiveness of temperature regulation of the injection molding machine.

This utility model discloses an automotive battery box inspection fixture, including a frame with material inlets at both ends and windows on both outer walls. Multiple rollers are mounted inside the frame via bearings. A mounting shell is bolted between the two inner walls of the frame, and a groove is formed on one outer wall of each mounting shell. An adjustment assembly, including two cylinders, is located inside the mounting shell. This utility model integrates rollers, a rotary table, a pressure plate, a distance measuring module, and left and right measuring components into one unit, achieving automatic conveying, automatic positioning and clamping, automatic height measurement, and automatic rotation of the battery box. This completely changes the existing technology's reliance on manual operation, automating and integrating the conveying, positioning, clamping, multi-dimensional measurement, and rotation re-inspection processes. This greatly reduces manual intervention and operation time, significantly improving inspection efficiency and consistency, meeting the needs of mass production, and contributing to improved inspection efficiency.

The utility model discloses high-precision transformer oil chromatography on-line monitoring equipment, which relates to the technical field of transformer oil chromatography on-line detection appliances, and comprises a cabinet body, the cabinet body is divided into two side areas, and one side area of the cabinet body is divided into an upper layer structure, a middle layer structure and a lower layer structure; a gear pump is installed on the bottom layer of an inner cavity of an area on one side of the cabinet body, an oil-gas separation box is installed at one end of the gear pump, an oil-gas permeable membrane is installed in the oil-gas separation box, and the oil-gas permeable membrane divides the oil-gas separation box into an oil cavity and a gas cavity. The effects of quick mounting and multi-tank placement are achieved, the problems that a traditional nitrogen tank is inconvenient to mount and dismount due to frequent use and the mounting number is small are solved, and the rapidness and durability of nitrogen tank replacement are improved; through cooperation between the gas analyzer and the data processing equipment, large-scale patrol of personnel is not needed, data deviation caused by human factors is reduced, and the real-time performance of monitoring is improved.

This invention discloses a machine tool spindle impact protection system, including a vibration sensor, a low-pass filter, a self-learning data judgment module, and an industrial controller. The vibration sensor is installed near the spindle and connected to the low-pass filter, which in turn is connected to the self-learning data judgment module. The industrial controller is also connected to the self-learning data judgment module. This invention belongs to the technical field of manufacturing and CNC machining systems. Specifically, it provides a system that uses a vibration sensor with a differentiator and comparator. By learning vibration data during normal operation, it obtains a DAC output level, which is compared with the output of the differentiator and the signal is transmitted to a PLC or contactor for power-off. The differentiator can predict signal abrupt changes in advance, thereby achieving spindle impact protection within microseconds, further reducing spindle damage and facilitating cost-effective machine tool spindle impact protection.

The invention discloses an online firepower distribution method based on a battlefield situation and an improved genetic algorithm, and relates to the field of firepower distribution, and the method comprises the following steps: collecting battlefield situation core data, and obtaining input information based on the battlefield situation core data; constructing an online firepower distribution model based on the input information, and forming an initial online firepower distribution model through dominant function definition, influence factor standardization, matrix construction, total income determination and constraint condition setting; and optimizing the initial online firepower distribution model by adopting an improved genetic algorithm to obtain an optimized firepower distribution scheme. According to the invention, efficient online distribution of multi-missile cooperative combat can be realized, and the real-time performance of battlefield decision making and cooperative combat effectiveness are improved.

The application discloses a kind of demodulation devices of fiber grating, belong to fiber grating technical field.The device includes shell, detachable installation filter screen is installed at shell opening, two-way air blower is installed in shell interior, two-way air blower is connected with two opposite settings uniform heat disc by air outlet pipeline, uniform heat disc is opened with air outlet hole and is set with heating coil pipe, two uniform heat discs are located on the same axis, two supports for clamping fiber grating are provided on shell, temperature sensor is provided on uniform heat disc, drive assembly is provided between shell and support by positive and negative toothed screw rod, motor and guide rail.The present application is heated by bilateral symmetry and controlled by annular temperature sensor, to realize uniform, fast constant temperature heating, effectively inhibit the influence of temperature drift on demodulation accuracy;While drive assembly can accurately adjust the stretching and contraction of fiber grating, meet different demodulation working condition demand.

The invention relates to the field of parameter optimization, and discloses a primary frequency modulation parameter optimization control method and system based on big data analysis, which are used for improving the frequency stability control level of a power system. Comprising the steps of collecting historical operation data of a power system, identifying frequency disturbance events to form an event set, extracting performance features in combination with system working conditions to construct a feature knowledge base, further generating a mapping rule of system working condition categories and optimization parameters, and judging the working condition categories in real time and matching parameter recommendation values during online operation. And adaptively adjusting the parameters of the frequency modulation unit. And triggering a revision process when the parameters do not meet the safety condition. The primary frequency modulation effect of the power system can be effectively improved, and the safe and stable operation capability of the system is enhanced.

The utility model belongs to the technical field of diverging frame, and disclose a kind of diverging frame structure of quick installation, including diverging frame body, the surface of diverging frame body is connected with eight reinforcing bars, reinforcing assembly and positioning assembly are respectively provided on diverging frame body, the surface of reinforcing assembly is connected with the surface of diverging frame body, the surface of positioning assembly is engagedly connected with the surface of reinforcing assembly, the utility model is automatically popped out after the installation position of positioning clamping block between positioning plate and diverging frame body is corresponded by the elastic effect of composite outer expansion spring, it is convenient to be engagedly connected with the inside of positioning plate and diverging frame body, and then the quick positioning between positioning plate and diverging frame body is carried out, it is convenient to be quickly screwed between positioning plate and diverging frame body by fastening bolt, positioning personnel does not need to seek the corresponding installation position between positioning plate and diverging frame body, the rapidity of installation is improved, reach the effect of quick installation, the use intensity of diverging frame body is improved by positioning plate and reinforcing frame.