23results about How to "Guaranteed speed" patented technology

This utility model relates to a gas wellhead chemical dosing device, belonging to the field of gas wellhead chemical dosing. The device includes a tank for holding the chemical agent; the upper part of the tank is equipped with a dosing pipeline and a venting pipeline; the lower part of the tank is equipped with a chemical outlet pipeline for connection to the wellhead; and the upper part of the tank is also equipped with a pressurization pipeline for connection to a casing test valve. This device utilizes the energy of the gas in the gas well and the gravity of the chemical agent to achieve dosing, eliminating the need for additional pressurization equipment, making it convenient to operate and implement.

The utility model discloses a kind of intelligent cloud printers, it is related to printing equipment technical field, wherein, intelligent cloud printer includes shell, network module, printing module and data transmission interface module, main circuit board is equipped in shell, control module is equipped thereon.Network module, printing module, data transmission interface module are all in shell.Network module has signal light group and communication component, signal light group contains auxiliary circuit board and signal light, auxiliary circuit board is in the front side of shell and is electrically connected with control module.Printing module contains printing key and printing component, printing component is electrically connected with control module through main circuit board, printing key and signal light are exposed to the front side plate of shell and on auxiliary circuit board.Data transmission interface module contains flow SIM card plug-in interface and wired network interface, is set on the opposite side in the height direction of main circuit board.The technical scheme provided by the utility model can carry out wireless network connection and wired network connection simultaneously, and has the key setting of convenient and user operation.

This invention belongs to the field of control technology for cooking appliances, and discloses a control method and a cooking appliance. The cooking appliance includes a defrosting auxiliary device, which includes a heating device and a humidifying device. The control method includes: after the food is placed in the working chamber and a variable-temperature defrosting command is received, controlling the heating device and the humidifying device of the defrosting auxiliary device to work, so that in the multiple defrosting stages performed sequentially by the cooking appliance, the temperature of the earlier defrosting stage is higher than that of the later defrosting stage, and the duration of the earlier defrosting stage is greater than or equal to that of the later defrosting stage. Through the above method, the food is not overcooked by the high-temperature environment during the defrosting process, ensuring the quality and speed of defrosting. The duration of the earlier defrosting stage is greater than or equal to that of the later defrosting stage, so that the time spent on high-temperature defrosting is greater than or equal to that of low-temperature defrosting, resulting in higher defrosting efficiency.

The application discloses a cement pole production mold and belongs to the technical field of cement poles. The cement pole production mold comprises a hoisting support seat, one side of the hoisting support seat is fixedly connected with a supporting half cylinder, two closing plates are fixedly connected in a symmetrical structure in the supporting half cylinder, a closing half cylinder is hingedly installed on one side of the supporting half cylinder, a threading plate is fixedly connected to one end of the closing half cylinder, a steel cable is inserted into the threading plate, a locking ring is fixedly connected between the head and the tail of the steel cable, a winding wheel is inserted into the middle of the steel cable, a winch is fixedly connected to the outside of the winding wheel, and the winch is fixedly connected to one side of the hoisting support seat. When the winding wheel inserted with the steel cable is driven by the winch to release the cable, the cable can realize the closing between the closing half cylinder and the supporting half cylinder, and the quickness of the cement pole sleeve limiting in the mold is ensured.

This invention discloses a method for estimating the speed and position of a permanent magnet synchronous motor (PMSM) based on a third-order switched extended state observer. Specifically, based on the mathematical model of the PMSM, a back-EMF observer based on a sliding mode observer is constructed to obtain the estimated back-EMF. Further, the estimated back-EMF signal is processed using a low-pass filter and amplitude normalization. The processed back-EMF is then used as the input signal to a position estimation scheme based on the third-order switched extended state observer, achieving accurate estimation of the PMSM's speed and position under different operating conditions. This invention is simple in principle and easy to implement. It combines the advantages of both third-order linear and third-order nonlinear extended state observers, improving estimation accuracy and dynamic performance while reducing the adverse effects of noise on the estimation scheme. This solves the technical problems of low estimation accuracy, high noise sensitivity, and difficulty in parameter tuning in existing estimation schemes.

The application discloses a device for recycling asphalt in waste asphalt mixture, which comprises a main box body, a bottom plate fixed to the lower side of the main box body, a bottom frame fixedly connected to the lower side of the bottom plate for supporting, a feeding hopper fixedly installed at the top rear side of the main box body, and a cooling and conveying mechanism arranged in the main box body for cooling and conveying the asphalt mixture. The cooling and conveying mechanism is used for uniformly cooling the asphalt mixture to zero below, so that the asphalt material becomes brittle and fragile, and the stone material still maintains the original strength at low temperature due to the material characteristics. The extrusion mechanism uses an elastic rotating structure to apply controllable extrusion force to the mixture, the brittle asphalt material is preferentially crushed, and the stone material is hardly damaged in the extrusion process and can fall into a stone collecting hopper in an intact form. The device greatly improves the recycling rate of the stone material, the intact stone material can be directly used for road base or concrete aggregate, and secondary processing is not needed, so that the cost of stone purchase and reprocessing is remarkably reduced.

The application discloses a kind of high-performance video tracking methods based on 3D twin convolution network.First, a kind of space-time feature extractor based on 3D twin network is designed, for extracting the space-time feature of template sequence and search sequence.Second, a multi-template matching module is designed, by passing template feature to search feature to strengthen target feature in search block, the module includes template feature conversion submodule and space-time feature matching submodule.Template feature conversion template is used to pass appearance and motion information in template frame to search branch;Space-time feature matching module includes by two depth-related branches, respectively for classification and regression.Then, target frame prediction module is adopted, including classification, quality evaluation and regression branch, to accurately predict the target position and boundary frame of each video frame in search sequence.Finally, by minimizing the defined joint loss optimization video tracking model, for video sequence target tracking prediction.

This application discloses a method and control system for erecting a launch vehicle. The method determines optimal erection control parameters for the launch vehicle based on environmental information and the launch vehicle's own state information. While controlling the erection of the launch vehicle according to the optimal erection control parameters, real-time action parameters of the launch vehicle are acquired. PID control is then applied to the erection of the launch vehicle based on the real-time action parameters and the optimal erection control parameters. This achieves adaptive intelligent control of the launch vehicle's erection by selecting the optimal control action based on the external environment and the launch vehicle's own state, effectively ensuring the speed, accuracy, stability, and safety of the launch vehicle's erection.

This application relates to the field of beer production technology, specifically a stable supply device for flavor lipid additives in beer production. This application achieves efficient filtration of flavor lipid additives by installing a vibration filtration mechanism within an internal filter box. This ensures the efficient addition of flavor lipid additives into the beer fermentation tank through vibration filtration, guaranteeing the flow rate of the additives through the filter box. Furthermore, by installing a buffer tank at the end of the delivery pipe on the metering pump, and a pressure applying mechanism on the buffer tank, residual flavor lipid additives in the buffer tank are electrically pressurized and fully discharged into the beer fermentation tank when the addition of flavor lipid additives is nearing completion. This ensures the accuracy of the added amount of flavor lipid additives and guarantees the final fermentation quality of the beer.

The present application relates to a kind of high-speed boat with two skids symmetrically arranged on the bottom of deep V planing boat, the extension length and the trim angle of the skid can be adjusted, and two sets of surface propeller propulsion systems are arranged at the stern, the horizontal direction and the vertical direction of the propulsion angle can be adjusted.The present application can maintain the good seaworthiness and rapidity of deep V boat type under high sea conditions.When sailing at high speed under normal sea conditions, the lift and the upward reaction force of surface propeller on the boat body will lift the boat body out of the water, and a very high speed can be achieved.For different sea conditions, manual or automatic control mode can be selected to adjust the sailing state and speed of the boat.The present application has simple structure, small resistance and high speed when skid is sliding, and has good safety, rapidity and energy efficiency ratio under the same power;PID automatic control system is used to ensure the safety, maneuverability and rapidity of the boat;The present application provides a high-speed boat type suitable for various sea conditions for military, police and other industries.

This utility model discloses a fire extinguisher anti-corrosion inner coating machine, relating to the field of fire extinguisher production technology. It includes a base and a placement platform. A lifting unit and a reciprocating unit are installed on the base. A sleeve is installed on the lifting unit, and a spraying unit, a conveying unit, and a measuring unit are installed at the lower end of the sleeve. The placement platform is installed on the reciprocating unit and has a limit unit. The spraying unit includes a first motor, a hydraulic lifting mechanism, and a nozzle. The advantages are that the tilt angle of the nozzle can be adjusted by the hydraulic lifting mechanism, slip ring, transmission rod, and support rod, enabling anti-corrosion spraying on tanks of different sizes without frequent nozzle replacement, thus improving production efficiency and reducing costs. Simultaneously, the support rod automatically adjusts the conveying diameter of the guide pipe through a roller mechanism and moving parts, automatically compensating for and adjusting the coating spraying speed, thereby ensuring uniform spraying of the tank and guaranteeing the speed and quality of the anti-corrosion coating application.

This invention discloses a grouped point cloud-driven arm-hand operating system. The arm-hand operating system includes a VR-based teleoperation data acquisition module, an environmental perception and encoding unit, and a two-layer feature fusion diffusion denoising model. Specifically: the VR-based teleoperation data acquisition module consists of a posture recognizer, a posture mapper, and a data storage module; the environmental perception and encoding unit consists of a point cloud grouper, a point cloud encoding module, and a state integrator; and the two-layer feature fusion diffusion denoising model consists of a two-layer feature fusion module and a diffusion denoising network. This arm-hand operating system can respond to environmental changes in real time, achieving comprehensive scene perception while quickly formulating task execution plans. This data acquisition-algorithm deployment collaborative framework effectively solves the challenge of balancing cost, speed, and accuracy in intelligent arm-hand operation, providing a cost-effective solution for embodied intelligence, robotic operations, and other fields.

The present application relates to the technical field of mining drill pipe, and particularly relates to a drill pipe structure capable of automatic disassembly, in particular to a drill pipe assembly capable of automatic disassembly of a mining drift drill, which comprises a vertically arranged bidirectional telescopic mechanism, an upper clamping locking mechanism and a lower clamping locking mechanism are symmetrically arranged at the output ends of the upper part and the lower part of the bidirectional telescopic mechanism respectively, the upper clamping locking mechanism is used in cooperation with the lower clamping locking mechanism, the lower clamping locking mechanism is used for clamping and rotating the drill pipe which needs to be disassembled at present, the upper clamping locking mechanism is used for clamping and fixing the drill pipe adjacent to the upper part of the drill pipe to be disassembled when the lower clamping locking mechanism works, and the bidirectional telescopic mechanism, the upper clamping locking mechanism and the lower clamping locking mechanism are connected with the drill through wires and are powered by the drill.

The application relates to a synchronous method and device of AC-DC voltage, equipment, a storage medium and a product. The method comprises the following steps: performing synchronous system conversion processing on a current AC voltage to be synchronized to obtain a direct-axis voltage and a quadrature-axis voltage of the AC voltage; updating a previous candidate filter bandwidth according to the direct-axis voltage to obtain a target candidate filter bandwidth of a current AC voltage synchronization process; wherein the previous candidate filter bandwidth is a target candidate filter bandwidth of a previous AC-DC voltage synchronization process; and performing AC-DC voltage synchronization processing on the quadrature-axis voltage according to the target candidate filter bandwidth of the current AC voltage synchronization process. The method can simultaneously ensure the transient response speed and the steady-state anti-disturbance capability of a phase-locked loop.

The application discloses a method for obtaining lens information and a near-eye display device; the method comprises the following steps: obtaining basic information based on a user wearing a near-eye display device provided with a detachable lens; matching lens information according to the basic information; determining a line-of-sight direction through the lens based on the lens information and an initial eye tracking calculation model; and correcting the eye tracking calculation model of the near-eye display device according to the line-of-sight direction through the lens. The method solves the problem of complex implementation process of obtaining lens information, improves the user experience without the user entering the lens information, and does not change the structure and function of the lens and the near-eye display device, so as to not affect the optical effect of the lens and not increase the design difficulty of the near-eye display device.

The present application relates to the field of new energy vehicle testing technology, and more particularly to a dynamic test bench for a dual-electric isomeric composite braking system, which comprises a pure mechanical path management mechanism through the creative collaborative design of "differential state combination of left and right one-way clutches" and "specific shunt connection of multi-stage planetary gear sets". The mechanism can automatically and non-interferingly switch the power transmission path according to pure friction braking, regenerative braking and composite braking conditions, ensuring that the torque flows from the simulated motor, drive motor and EMB brake are accurately coupled and do not interfere with each other. In addition, the first sleeve is rigidly connected with the outer rings of the left and right one-way clutches through "key + flange bolt", which significantly improves the reliability under high dynamic load; the simulated motor dynamic simulation load replaces the fixed flywheel, greatly enhancing the flexibility and coverage of the test.

The utility model discloses an embodiment provides a kind of high-frequency card edge connector, comprising: shell, it is equipped with slot on it, the two side edges of slot longitudinally pass through the upper end and lower end of shell, it is equipped with several terminal slots;Terminal slot middle part is communicated with slot;It is equipped with arc spring terminal in terminal slot;Spring terminal is conductor, its lower end is connector pin, its upper end is abutting end, and abutting end extends into slot;The outside of shell is equipped with opening, and the lower end of terminal slot is exposed in opening position;Opening position is detachably provided with side cover;Terminal slot lower end is also provided with abutting piece;Abutting piece, its first end is in abutment with the back of spring terminal, and its second end is in abutment with side cover.The above-mentioned high-frequency card edge connector, by detachable side cover, it is convenient to assemble and maintain, reduce cost and time consumption, by abutting piece design ensure that spring terminal and ground structure are in good contact, reduce contact failure, guarantee data transmission stability and rate.

A kind of inflatable evacuation platform system of quick deployment, including one or more mutual series evacuation platform, the evacuation platform includes main frame, inflatable support air bag, drive cylinder and inflation device;Slide rail is arranged between the main frame and the ground of tunnel, the inflatable support air bag is arranged on the main frame, the inflatable support air bag includes several section air bags, each section air bag is connected by air passage, one end of the inflatable support air bag is fixedly connected with the side of the main frame, support partition is arranged between each section air bag;The drive cylinder is fixedly connected with the main frame, the drive rod of the drive cylinder is fixedly connected with the side wall of tunnel;The inflatable support air bag is connected with the inflation device.

The utility model discloses a kind of cutting machines of double-end terminal wire harness, belong to wire harness production field, including by clamping assembly, traction assembly, cutting assembly and base wire harness cutting machine.It is compared with prior art that the utility model has the advantages that the device is installed on the fixed upper roll side of clamping assembly Adjusting motor that can control the reverse rotation of fixed upper roll, when appearing inertia lengthening, it can be through reversing adjusting motor, to make the wire harness that is pulled out straight, to ensure the accuracy when cutting, and use linear motor as traction, can guarantee the speed of traction, wherein the end is clamped using electric wire pulling clamp, can ensure that wire segment can be quickly dropped to the base below after completing cutting.

The invention relates to the technical field of power system operation control, and discloses an AC / DC hybrid micro-grid power router power regulation and control system, which comprises a main circuit module, an acquisition module and a calculation control module. The calculation control module integrates a digital signal processing unit and a field programmable gate array unit. The digital signal processing unit calculates a DC bus transient energy elasticity index, a mechanical torque margin and an electromechanical resonance risk index, and synthesizes a positive sequence virtual impedance instruction and a negative sequence virtual impedance instruction. And the field programmable gate array unit executes high-frequency sampling and extracts frequency characteristics of the high-voltage alternating-current power transmission network, and generates a driving pulse signal according to the positive-sequence virtual impedance instruction and the negative-sequence virtual impedance instruction. And the driving pulse signal regulates and controls the port impedance characteristic of the main circuit module to the high-voltage alternating-current power transmission network. According to the invention, cooperation of power grid frequency support and equipment mechanical safety is realized.

The utility model discloses a rare earth waste extraction and impurity removal device, the utility model relates to rare earth waste processing technical field. This rare earth waste extraction and impurity removal device includes spacing frame, and its characterized in that: the lower portion of spacing frame is provided with the impurity removal mechanism: support frame is set up in the inboard of spacing frame for supporting conveying assembly and sorting assembly, conveying assembly is set up in the inboard of support frame for conveying rare earth waste, sorting assembly is sorted to the component in the rare earth waste that can be affected by magnetism through the magnetic force size that the plurality of electromagnet generates gradually decreases from front to back in proper order, and the number of the number of electromagnet is consistent with the number of receiving hopper, can receive the material that falls after magnetism weakens, and the impurity after sorting is conveyed through the individual conveying belt that is erected below receiving hopper, or the container is placed below receiving hopper to collect the impurity, so that subsequent processing is convenient, so as to reach the effect that the sorting according to the strength of the magnetism influence.

This invention belongs to the field of blockchain technology and discloses a method for controlling the blockchain generation rate, including the following steps: Step 1, receiving transactions to be executed and placing them into a task pool; Step 2, periodically scanning the task pool; Step 3, retrieving transactions to be executed and placing them into the blockchain's transaction pool to be packaged; Step 4, maintaining the on / off state of the packetizers; Step 5, dynamically expanding the number of packetizers. This invention, through real-time monitoring and dynamic adjustment of time and space, achieves control over the rate of blockchain block generation and ensures that blocks are generated to their full capacity, avoiding wasted computing power and storage space. Therefore, it not only guarantees the speed of block generation but also effectively controls the block size.

The utility model relates to continuous barrel plating production line technical field discloses automobile radiator fin continuous barrel plating production line, including the cylinder, the lid is rotationally connected with the inboard of cylinder upper end, and the both ends rotationally connected with fixed cylinder of cylinder, the one end fixed connection of fixed cylinder far from cylinder has the support, and the one end downside of fixed cylinder is provided with storage subassembly, and storage subassembly includes the storage box of fixed cylinder lower end setting, the one end fixed connection of storage box upside has the liquid inlet, and the first drainage of storage box lower end fixed connection has, and the middle end of storage box upside setting has the liquid injection subassembly, and the one end outside of cylinder is provided with the rotating subassembly, and the one end downside of fixed cylinder close to rotating subassembly is provided with the collection subassembly, and the upper end of collection subassembly is provided with the filter subassembly, can cooperate through storage subassembly and liquid injection subassembly etc., effectively maintain the rotating speed of cylinder, make its rotating speed maintain equilibrium, increase the injection amount of fresh electrolyte simultaneously, reduce the influence to fin coating, thereby effectively promote the uniformity of coating.