24results about How to "Meet control needs" patented technology

The application provides a VISA library running method and device based on an ARM embedded platform, and relates to the technical field of testing and measurement, and comprises the following steps: initializing a layered architecture of a VISA library; the layered architecture of the VISA library comprises an application layer, an API interface layer, a core logic layer, a hardware abstraction layer and a driver layer; discovering and establishing a communication session connection with at least one measuring instrument; wherein a session attribute and a preset attribute associated with a data reading operation are included in a session structure body of the communication session; setting at least one preset attribute for the VISA library; sending at least one control command to a target measuring instrument; wherein the target measuring instrument comprises at least one; reading response data for the control command from the target measuring instrument based on the preset attribute and writing the response data into a buffer; and closing the communication session established with the at least one measuring instrument, so as to alleviate the technical problem that the VISA library is difficult to meet the requirements of an embedded application scenario in high performance.

This utility model discloses a lockable sliding switch, comprising: an upper shell and a lower shell, the upper shell and the lower shell being connected to form a closed outer shell structure; a rotary lock seat, rotatably disposed within the upper shell and the lower shell; and a fixed lock seat, fixedly disposed within the upper shell and the lower shell, forming a relative rotational relationship with the rotary lock seat; the rotary lock seat is provided with a first locking plate, and the fixed lock seat is provided with a second locking plate; when the rotary lock seat is rotated to the locked position, the first locking plate and the second locking plate abut face to face, blocking the rotation of the rotary lock seat; the rotary lock seat is provided with a lock hole, and when the rotary lock seat is in the locked position, an external lock can be inserted into the lock hole and locked. This lockable sliding switch has the characteristics of double locking to prevent misoperation, stable gear switching, and reliable contact.

This utility model discloses a bidirectional circuit switching membrane button, comprising: a flexible base layer with a first conductive contact and a second conductive contact thereon; a seesaw-type movable layer, hinged to the base layer in the middle via an elastic fulcrum, and having a first pressing part and a second pressing part corresponding to the first and second conductive contacts at both ends; and a waterproof sealing layer covering the base layer and the movable layer, with an annular groove on its edge for fixed installation. The seesaw-type movable layer design enables bidirectional circuit switching, allowing flexible control of different circuit on / off states; the conductive contacts and pressing parts precisely correspond to each other, ensuring accurate contact during pressing and reducing circuit failures; the waterproof sealing layer covers the outside of the button, effectively preventing moisture, dust, and other impurities from entering and protecting the internal structure; the waterproof sealing layer reduces impact and damage to the internal structure of the button from external objects; and the annular groove on the edge of the waterproof sealing layer facilitates quick and stable installation of the button on the device, ensuring its firmness.

The application provides an item hierarchical management method and system based on rail transit, and relates to the field of Internet of Things; the method comprises the following steps: determining each level of item hierarchical management and corresponding management authority; receiving a first user request, and judging whether the first user request belongs to the management authority corresponding to the user level; when the first user request exceeds the management authority, feeding back that the request exceeds the authority; when the first user request belongs to the management authority, determining corresponding item location information; judging whether the item is stored in an item storage unit according to the item location information; when at least one item is stored in the item storage unit, controlling the item storage unit to be opened; when the item is taken out, feeding back multiple location information of the item; receiving a second user request, and generating and feeding back multiple path strategies for obtaining the item according to the second user request. The application fully ensures that the item key can only be taken by multiple users with authority through item hierarchical management, and timely allocation is realized through the location information of the item.

The invention discloses a lithium battery equalization method based on improved fuzzy control, which aims at solving the problems of low single variable control precision and poor fixed universe adaptability in the existing equalization method, and comprises the following steps: firstly, dividing SOC into different intervals through battery OCV-SOC characteristic analysis, and preferentially carrying out voltage equalization in an extreme SOC interval to avoid overcharge and overdischarge; sOC equalization is preferentially carried out in the middle SOC interval so as to improve the energy transfer efficiency. A voltage and SOC dual fuzzy controller is designed, a variable universe fuzzy controller is introduced to dynamically adjust an input variable universe, the universe is expanded at the initial stage of equalization to accelerate response, and the universe is shrunk at the later stage of equalization to improve precision. And further designing a self-adaptive fuzzy controller, taking the SOC mean value and the equalizing current as input, and dynamically outputting a weight coefficient of a double-fuzzy controller, thereby realizing self-adaptive switching of the equalizing strategy under different SOC intervals. According to the invention, the equalization precision and efficiency are effectively improved, and the robustness and safety of the system are enhanced.

This application discloses a method, apparatus, and equipment for optimizing the frequency conversion of fans in a multi-level station ventilation system. The method includes: acquiring a ventilation network model of the multi-level station ventilation system; calculating airflow distribution in the ventilation network model based on a ventilation network solution method, and adjusting the ventilation network model based on the airflow distribution calculation results until the simulated operating conditions of the fans in the ventilation network model match the actual operating conditions; generating at least one candidate fan frequency conversion control scheme based on the underground ventilation airflow demand and the corresponding set optimization model of the multi-level station ventilation system; and determining the optimal fan frequency conversion control scheme based on the at least one candidate fan frequency conversion control scheme and the underground ventilation airflow demand; wherein the set optimization model is a multi-objective mixed integer linear programming model. This enables intelligent frequency conversion control of the multi-level station ventilation system and significantly improves the solution performance of the fan frequency conversion control scheme.

The utility model relates to controller technical field, concretely relates to a kind of whole vehicle controller of electric explosion-proof mine car.The scheme of the present application, signal input unit integration analog quantity, switching value, hard wire wake-up and frequency quantity input module, the analog quantity signal of speed, pressure etc. sensor can be directly compatible, equipment state switching value signal, motor speed frequency quantity signal and vehicle wake-up hard wire signal, without multiple independent acquisition device adapter.This shortens signal transmission path, reduces external interference, improves the accuracy and real-time of data acquisition.OC output module stable output control signal, meet electric explosion-proof mine car drive, brake, steering and other actuator control requirements;Low-voltage power supply module directly for external low-power device power supply, without additional power module.Both avoid the power failure caused by poor compatibility of traditional controller power module, reduce the number of vehicle power components, reduce fault point.

The embodiment of the specification discloses a shape sensing method and system of a rope-driven continuum robot, at least two flexible sensors are fixed on a flexible skeleton in a spiral manner, the method comprises the following steps: establishing a general shape sensing model based on a constant curvature assumption; for any joint module: driving the joint module to a test shape, based on the general shape sensing model, solving the actual fixed position of the flexible sensor by using a numerical iteration method; driving the joint module to a working shape, based on the general shape sensing model and the actual fixed position of the flexible sensor, solving the output value of the flexible skeleton shape parameter by using a numerical iteration method; determining the robot shape based on the output value of the flexible skeleton shape parameter corresponding to each joint module. The application does not need to consider the fixing accuracy when fixing the flexible sensor, the model is established and calibrated, the change of the robot shape is accurately sensed, and the problems of high sensor installation accuracy and poor sensing reliability in the prior art are solved.

The invention relates to the technical field of generator excitation simulation, and discloses an RT-LAB-based generator excitation small signal semi-physical simulation method and detection system, and the simulation method comprises the following steps: building a single machine infinite bus simulation system and a generator excitation system model in RT-LAB software; a semi-physical simulation platform loaded with RT-LAB software is electrically connected with the AVR excitation regulator through a conversion card; based on the generator excitation system model established in RT-LAB software, determining the optimal working parameters of the PSS of the AVR excitation regulator; and based on the optimal working parameters of the PSS of the AVR excitation regulator, adjusting the control parameters of the single-machine infinite-bus simulation system and the generator excitation system model so as to evaluate the response performance of the AVR to various generator faults. According to the method, a small signal model is built through RT-LAB, and the test accuracy is ensured by utilizing the real-time capability of the step length of 15 microseconds.

The application discloses a kind of considering efficiency and energy consumption's grate cooler multi-objective optimization control method, comprising:1, on the basis of considering efficiency and energy consumption, establish grate cooler energy efficiency evaluation model;2, based on the establishment of grate cooler energy efficiency evaluation model grate cooler efficiency target and energy consumption target, construct grate cooler multi-objective optimization model;3, utilize MOEA / D algorithm to solve grate cooler multi-objective optimization model, obtain the optimal solution of grate pressure setting value and fan air volume setting value;4, using generalized predictive control algorithm and incremental PID algorithm realizes the rolling optimization of grate pressure and fan air volume.The application is under the premise of considering the efficiency and energy consumption of grate cooler, to grate cooler grate pressure setting value and fan air volume setting value are optimized simultaneously, it is favorable to improve the parameter control level of grate cooler, reduce production energy consumption.

The utility model provides a detachable pneumatic cut-off valve seat sealing structure, which relates to the field of pneumatic cut-off valves, and comprises a valve body, the left side surface of the valve body and the right side surface of the valve body are connected with mounting flanges, the outer surface of each mounting flange is provided with a group of mounting holes, and the mounting holes are communicated with the mounting flanges. And sealing grooves are formed in the left side surface and the right side surface of the mounting flange. According to the detachable valve seat sealing structure of the pneumatic cut-off valve, the switching valve rod is driven by the pneumatic part, the switching block and the butterfly plate can be driven to rotate, opening and cutting off of a fluid channel can be rapidly and accurately achieved, the response speed is high, the control precision is high, when the pressure in the valve body is too high, the sealing plate slides under the pressure effect, the spring and the buffer damper are compressed, and the sealing effect is good. The fluid enters the pressure relief assembly, the valve body is prevented from being damaged due to too high pressure, the rotating handle is rotated to drive the threaded lead screw to rotate, the initial position of the sealing plate can be flexibly adjusted, and therefore the pressure relief pressure is accurately adjusted.

The utility model provides a textile machinery tension rake device with controllable tension, which relates to the technical field of textile machinery and comprises a tension mechanism, the tension mechanism comprises a rake body part, a non-return part and a cavity, the rake body part is arranged in the cavity in a sliding manner, the non-return part is connected onto the rake body part through an elastic piece, and the cavity is connected with the rake body part. The non-return part slides in the cavity, and the multiple tension mechanisms are transversely arranged. The elastic piece applies pressure to the rake body part, the sliding distance of the non-return part is used for controlling the pulling force, when the external force acting on the shaft pressing motion of the pressure control mechanism disappears, the non-return ratchet and the trapezoidal tooth are meshed with each other to prevent the non-return part of the rake from returning, and the pulling force is kept; the downward pulling force of the rake non-return part on the rake body part is reduced due to the downward movement of the fabric, the pressure control mechanism does work again and circulates in this way, and the rake downwards pulls the fabric to a designated position and then the required rake is selected by the ascending selection mechanism to ascend as a cycle.

The utility model relates to a kind of unmanned aerial vehicle structure of front and rear wing coordinated control, including bearing shaft, bearing shaft is equipped with installation slot, installation slot is equipped with installation shell, installation shell is fixed with mounting plate, full-actuated steering gear is installed on mounting plate, installation shell is fixedly connected with baffle, baffle is equipped with wing movable link key, wing movable link key is externally rotatably equipped with rudder connecting piece, rudder connecting piece is fixedly connected with extension plate, extension plate is rotatably connected with eccentric wheel connecting rod, and pull rod is arranged between full-actuated steering gear and eccentric wheel connecting rod;By starting full-actuated steering gear, drive pull rod relative movement, to indirectly drive rudder connecting piece rotation, to realize the deflection of different angles of front and rear wing surface, realize the adjustment wing surface aerodynamic distribution of unmanned aerial vehicle, so that unmanned aerial vehicle can respond in time when low-altitude flight, hovering or big maneuvering attitude adjustment, improve the maneuverability and control performance of unmanned aerial vehicle.

The application provides a vehicle control method and system under ramp conditions and a vehicle, and belongs to the technical field of automatic driving. The method comprises the following steps: 1) obtaining the slope angle θ of the ramp where the vehicle is located, and determining the theoretical acceleration a that needs to be compensated by using the slope angle; 2) determining the compensation coefficient k according to the ramp conditions and the running conditions of the vehicle; 3) multiplying the compensation coefficient k, the acceleration weight w and the theoretical acceleration a that needs to be compensated, and then summing and calculating with the planned acceleration a_plan to obtain the actual control acceleration a_act; and 4) controlling the vehicle by using the obtained actual control acceleration a_act. When the vehicle is under ramp conditions, a certain acceleration / deceleration needs to be compensated due to the influence of the gravity component. The vehicle is controlled by using the actual control acceleration a_act, so that the vehicle can stably travel, and the comfort and stability of the vehicle control are improved.

The invention discloses a metadata version control method, which comprises the following steps of: establishing a metadata version control system consisting of a Git warehouse comprising a main branch and individual branches of all users, a plurality of associated working trees serving as working directories, and a database table used for recording user states; storing metadata in a main branch of a version control system in a JSON text file form, and managing the metadata by the Git warehouse; using a file system as a working directory of the Git, and providing a complete metadata version control service for an upper-layer application by packaging branches, submission, merging, rollback and log capabilities of the Git; when a target user in a browsing state initiates a metadata write operation, the metadata version control system judges whether the personal workspace of the target user exists or not, and executes an operation such as creating the personal workspace of the user according to a judgment result.

The utility model belongs to optical film technical field especially for a kind of control film assembly of switchable light, including base layer, the upper portion of base layer is provided with electrochromic layer, electrochromic layer upper portion is provided with liquid crystal dimming layer, the upper portion of liquid crystal dimming layer is provided with polarized control layer, the upper portion of polarized control layer is provided with protective layer, electrode set up on electrochromic layer and liquid crystal dimming layer are electrically connected with drive circuit.The utility model, through the synergies of electrochromic layer, liquid crystal dimming layer and polarized control layer, can realize the diversification adjustment of light transmittance, reflectivity and polarization state, meet the light control demand under different environment and use scene, can flexibly adjust light transmittance, it is convenient to use, simultaneously, the quick response characteristic of liquid crystal dimming layer makes film assembly can realize the switching of transparent and opaque state in short time, compared with traditional electrochromic film, greatly improve the timeliness of light control.

The invention provides a refrigeration equipment control method and device, a refrigerator and a computer readable storage medium. The method comprises the steps that current date information is obtained; determining whether the current date information is a target date; if the current date information is represented as a target day date, a first target day sunset moment and a second target day sunset moment corresponding to the target day date are determined according to the current geographic position of the target refrigeration equipment, and the first target day sunset moment is located before the second target day sunset moment; and according to the first target day and sunset moment and the second target day and sunset moment, the target refrigeration equipment is controlled according to a target day control strategy. According to the refrigeration equipment control method provided by the invention, the date of the special target day can be accurately determined, the target day control strategy is automatically switched, and the automatic control capability of the equipment is improved.

This invention relates to the field of industrial control technology, and discloses a PCIE integrated control method, system, device, and medium for a dual-head wire bonder. The method includes the following steps: During operation, when controlling multiple stepper motors, the host computer writes a first instruction to the BRAM corresponding to the PL pin of the ZYNQ via PCIE, and notifies the PS core inside the ZYNQ to receive the first instruction; after receiving the first instruction from the BRAM, the PS core inside the ZYNQ reads and parses the instruction; after parsing the first instruction, the PS core outputs a first instruction to control the movement of the corresponding stepper motor. This invention achieves a transmission rate of up to 4GB / s and integrates 20-axis stepper motor control, 16-axis DC motor control, 72-bit extended input / output, and 4 coded signal wheel inputs.

The signal processing method provided by the invention is applied to the terminal equipment, and the signal processing method comprises the following steps: after receiving an indication signal sent by a laser receiving sensor, processing the indication signal to obtain a target signal, the delay of the target signal relative to the indication signal being a preset duration, the pulse width of the target signal is a target width value, and the target signal is used for triggering laser emission; and determining the starting time of laser emission according to the target signal and the indication signal. According to the method, the starting time of laser emission can be accurately determined, so that the laser measurement precision is improved.

This invention provides an intelligent control method and system for gas flow in a continuous annealing furnace, comprising: collecting and preprocessing key process parameter data during the operation of the continuous annealing furnace; inputting the key process parameter data into a trained gas flow prediction model to predict and output the target gas flow in each zone of the continuous annealing furnace; the gas flow prediction model is constructed by combining a heat transfer physics model and a data-driven AI model; the heat transfer physics model calculates the optimal furnace temperature setpoint based on the target strip temperature, and the data-driven AI model predicts the target gas flow based on the optimal furnace temperature setpoint; the prediction result conforms to physical laws and also learns the complex nonlinear relationship between actual combustion and control through the data-driven model; correcting the target gas flow based on production process parameters; when the difference between the corrected target gas flow and the real-time detected gas flow exceeds a preset threshold, feedback adjustment of the gas flow in each furnace zone is performed based on the actual strip temperature, target temperature, and furnace temperature using a PID control algorithm. This invention enables intelligent control of the gas flow in a continuous annealing furnace.

The application discloses a vehicle control method and a vehicle. The method comprises the following steps: obtaining a cabin picture collected by a camera assembly, inputting the cabin picture into a trained deep prediction model for processing to obtain an initial depth map, determining a plurality of feature points from the cabin picture, obtaining feature types of the feature points, determining predicted depth values of the feature points relative to the camera assembly according to the initial depth map, determining true depth values of the feature points relative to the camera assembly according to the feature types, determining depth correction parameters according to the predicted depth values and the true depth values, correcting the initial depth map according to the depth correction parameters to obtain a target depth map, determining a true distance of a target object relative to the camera assembly according to the target depth map and generating a vehicle control instruction, and controlling a functional component related to the target object according to the vehicle control instruction. The accurate relative distance information can be determined, and the accuracy and reliability of vehicle control are ensured.

The utility model relates to the field of experimental equipment more specifically is intelligent experiment fender, including intelligent fender, the front side of intelligent fender is fixedly connected with panel, two low -voltage output modules are symmetrically equipped on the panel, two groups of ac low -voltage electric output mouth are equipped between two low -voltage output modules on the panel, power supply module is all set up to the both ends of panel, data transmission interface is still set up to the surface of panel, the bottom surface of panel is provided with a plurality of screw holes, the low -voltage output module includes setting low -voltage electric display screen and four low -voltage electric adjusting module on the panel, four low -voltage electric adjusting module sets up in the lower extreme of low -voltage electric display screen, the middle part of panel is installed touch -control display screen, beneficial effect is through integration touch -control display screen, multi -interface network communication module and high -precision low -voltage output module, solves the problem that traditional fender is poor in interactivity, single function, weak environmental adaptability.

This invention discloses an agricultural water-saving irrigation system for water resource management, comprising a sand filter tank and a water pump. A dosing tank is installed at the output end of the sand filter tank via a pipe. An inlet pipe and a drip irrigation pipe are respectively installed at the output end of the dosing tank via flow combination valves. Several fixing components are detachably mounted on the surface of the drip irrigation pipe. A spray frame is mounted on the top of a telescopic support rod. A spray rod is movably mounted on the inner side of the spray frame. A shaft fitting is movably mounted between two mounting frames. A drive mechanism is mounted at one end of the shaft fitting, and an irrigation mechanism is mounted at the other end. A coiled tube is mounted in the middle of the shaft fitting. A drip irrigation device is detachably mounted on the surface of a one-way pipe joint. This invention, through a series of structural features, allows for adjustment of the irrigation area in rectangular irrigation zones. The combination of drip irrigation and sprinkler irrigation meets agricultural water-saving requirements and facilitates crop disease diagnosis and treatment.

The invention relates to the technical field of spectral analysis and ore component detection, and discloses an LIBS (laser-induced breakdown spectroscopy) spectrum grade prediction method based on multi-head attention. A multi-scale extraction module is constructed based on one-dimensional convolution of different convolution kernel sizes, a feature extraction module is constructed based on rotation position coding and multi-head attention, and a spectrum grade prediction model is constructed based on the multi-scale extraction module, the feature extraction module, residual connection and a multi-layer perception mechanism; the method comprises the following steps: acquiring spectral data of an ore component detection site, preprocessing the spectral data to obtain spectral features, inputting the spectral features into a spectral grade detection model, extracting local multi-scale features by a multi-scale extraction module based on the spectral features, acquiring global features from the local multi-scale features by a feature extraction module, and extracting the global features from the local multi-scale features; obtaining fusion features based on the global features and the local multi-scale features in combination with residual connection, and obtaining an ore grade prediction result based on the fusion features and the multi-layer perceptron; the problem that an existing calculation model is difficult to carry out grade prediction based on spectral data is solved.