1263results about How to "Improve general performance" patented technology

The invention discloses a branch prediction unit power consumption management method and device, and the method comprises the steps: setting a multi-stage branch predictor and a low-power-consumption control logic coupled with the multi-stage branch predictor in a processor core micro-architecture, and enabling the multi-stage branch predictor to comprise three stages of predictors which are sequentially accessed in an assembly line, the hardware resource consumption and the prediction accuracy of each predictor are gradually increased from front to back; monitoring the prediction condition of each predictor in real time through low-power-consumption control logic, and closing all predictors behind the first predictor meeting the prediction requirement within a first preset time according to a front-to-back sequence; branch jump addresses are divided into high-order address fields and low-order address fields by BTBs in the multiple levels of predictors except the first-level predictor to be stored in different storage blocks, and label registers used for taking the high-order addresses as label indexes are arranged. The power consumption unit of each predictor can be finely controlled, the energy consumption is greatly reduced, system-level cooperation is not needed, and the universality is high.

The invention belongs to the technical field of off-grid inverter and battery management, and particularly relates to an off-grid inverter battery protection and charging control method and system based on impedance detection, and the method comprises the steps: collecting battery input parameters under two different load working conditions: no-load or light-load and on-load conditions; an Ohm law analytical algorithm is adopted, a corresponding relation model of the lithium battery remaining capacity SOC and the battery internal resistance is preset, the current actual internal resistance of the battery is obtained, the preset SOC-internal resistance corresponding relation model is input, and the current SOC value of the battery is obtained through reverse deduction; an inverter charging current adjusting threshold value is set in a grading mode, and a multi-dimensional risk early warning threshold value is set in a grading mode; and when the monitored numerical value exceeds a correspondingly set risk early warning threshold value, triggering a risk early warning signal of a corresponding grade and a matched disposal action, and carrying out full-process management and control of battery state real-time monitoring, charging current self-adaptive adjustment and risk early warning. Therefore, the problems of short service life, poor charging safety and the like of the battery in the prior art are solved.

The invention discloses a multichannel broadband receiver, and belongs to the technical field of microwave radio frequency and electronic control, the multichannel broadband receiver comprises a multichannel down-conversion assembly, a local oscillator power component, a power interface control panel and a VPX connector, the down-conversion assembly adopts a cavity-divided integrated structure, multiple identical radio frequency links are arranged in the same cavity in parallel, and the VPX connector is connected with the local oscillator power component. Down conversion from a 2-18GHz radio frequency signal to a 1.3-2.3 GHz intermediate frequency signal is realized through two-stage frequency mixing; the power supply interface control board takes an FPGA as a core, integrates the functions of multi-path power supply conversion, driving isolation, state monitoring and the like, and realizes channel gain power failure storage and calling, BIT self-inspection, nanosecond rapid turn-off and multi-parameter real-time monitoring through software and hardware cooperation. Through collaborative innovation of the structure, circuit and control, high integration, high channel consistency, high isolation and high intelligence of the multi-channel receiver are realized, and the multi-channel receiver is suitable for the fields of high-performance radars, electronic countermeasures and the like.

The invention discloses a two-stage space-time diagram network and multi-source information fusion time sequence probability prediction method and device, and relates to the technical field of artificial intelligence and big data analysis. The method comprises the following steps: acquiring historical wind speed sequence data and corresponding target variable sequence data; preprocessing the data, and constructing a training sample according to a preset time sliding window; constructing a time sequence probability prediction framework of the two-stage space-time diagram network and multi-source information fusion; based on the fluctuation correlation of the historical sequence data, constructing an adjacent matrix between nodes; inputting the training sample and the adjacent matrix between the nodes into a wind speed prediction model, training the model through a designed threshold perception loss function of a wind speed-power nonlinear relationship, and outputting a multi-node wind speed prediction probability of a first stage; and inputting the multi-node wind speed prediction probability and the multi-source environmental factor data into the gradient boosting tree model for second-stage prediction, and outputting a multi-node wind power prediction result. According to the invention, prediction errors can be reduced.

The invention discloses a scale and structure consistency image generation method fusing three-dimensional geometric prior, and belongs to the technical field of computer vision and image generation. The method comprises the following steps: acquiring a scene image and depth information corresponding to the scene image, reconstructing a scene point cloud containing pixel space coordinates and color information, acquiring a colored point cloud of an object to be inserted, placing the colored point cloud at a specified position of the scene through rigid body transformation, and unifying a coordinate system with the scene point cloud; projecting the transformed object point cloud to an image plane through a camera model, determining a visible point according to the depth, and constructing an insertion region mask to remove pixels of a region corresponding to a scene; then constructing a multi-channel geometric structure priori graph containing color, depth and other information, and splicing the multi-channel geometric structure priori graph with the cleared scene image to form a diffusion type generation model input; and finally, generating an image under geometric prior guidance, ensuring that the inserted object is consistent with the original scene in the aspects of position, scale, perspective and the like, solving the problem of insufficient geometric consistency of the existing method, and realizing image content insertion with an accurate structure and real vision.

The invention discloses a method for generating a micromechanical property distribution diagram of a solid waste composite cement-based cementing material, and belongs to the technical field of performance prediction of solid waste composite cement-based cementing materials, and the method comprises the following steps: acquiring BSE, EDS and nanoindentation data of a sample; identifying indentation areas in the nanoindentation mark graph, and generating masks corresponding to the areas; performing statistics on the regional masks to obtain element content data of each indentation region; establishing a prediction model by adopting machine learning based on the regional element content and the elasticity data; performing super-pixel segmentation on the BSE image to match the scale of the indentation area; calculating element features of the super-pixel regions, and predicting the elastic modulus of each super-pixel region; and mapping the predicted elastic modulus to a corresponding region to generate an elastic modulus distribution diagram. According to the method, prediction of the two-dimensional space distribution of the internal elastic modulus of the solid waste composite cement-based cementing material can be realized, and data and visual support are provided for material heterogeneity research and multi-scale modeling.

An aberration regulation method of a reflective double-beam interference exposure system, comprising: constructing a reflective double-beam interference exposure system, dividing a light beam output by a laser into two double beams with the same intensity, and forming an interference exposure field; constructing an aberration regulation system, testing and recording the aberration of the double-beam light path by using a spherical interferometer, and regulating the wavefront of any light beam in the double beam by using a deformable mirror, so that the aberration of the light beam matches the aberration of the other light beam, and the regulation of the aberration of the interference exposure field is completed. The present application solves the problems of precise assembly and adjustment, wavefront aberration control and the like of the reflective double-beam interference exposure system based on a large-aperture off-axis parabolic mirror, and provides a new solution for the preparation of a meter-level large-aperture, low-aberration diffraction grating.

The invention provides a semantic perception collaborative intrusion detection method for multiple vehicle-mounted networks, and relates to the field of vehicle-mounted network security, and the method comprises the steps: collecting communication data from a plurality of vehicle-mounted network domains such as a controller local area network, a vehicle-mounted Ethernet, a host system and the like; analyzing business features of each domain based on semantic information, and extracting feature representation from the time sequence dependency relationship; and a cross-domain attention mechanism is utilized to realize feature association among multiple network domains so as to identify potential multi-stage intrusion behaviors. Through multi-domain semantic fusion and cooperative detection, the method can effectively recognize complex attack behaviors which only show weak abnormal features, improves the intrusion detection precision and robustness of a vehicle-mounted network, and is suitable for a safety protection scene of an intelligent connected vehicle.

The utility model provides a kind of circuit board test fixture, it is related to the technical field of circuit board, including guide piece and clamping module.Guide piece forms adjustment path;Clamping module includes two clamping components, two clamping components are spaced apart in guide piece, and at least one of two clamping components is movably positioned along adjustment path setting, clamping component is equipped with the clamping part of electrically energizable setting.In the utility model, the clamping part of two clamping components is respectively used to clamp the two contacts of circuit board, and clamping part is electrically energizable setting, to realize the fixation of circuit board and power-on test.Further, at least one of two clamping components is movably positioned along guide piece, i.

The application discloses a plastic solid waste recycling device and belongs to the technical field of plastic recycling. A fixed mold assembly is fixedly arranged on an equipment table. A movable mold assembly is movably arranged on the equipment table. A linkage member is movably arranged on the equipment table and is provided with a linkage plug on the side facing the movable mold assembly. An outer wall of the side of the fixed mold assembly facing the movable mold assembly is provided with an insertion block. The outer wall of the side of the insertion block facing the movable mold assembly is provided with a locking cavity. The movable mold assembly is axially provided with a penetrating insertion cavity. The insertion block is slidably arranged in the insertion cavity to realize preliminary locking. The linkage plug is slidably arranged in the locking cavity to realize relocking. The multistage locking structure is matched with the integrated sealing design. After the mold is closed, the locking is firm, the melt pressure in the injection molding process is effectively resisted, the problems of loosening and deviation of the mold are avoided, the sealing performance of the butt joint surface of the mold is greatly improved, the overflow and leakage phenomena are completely eliminated, the quality of the plastic product is ensured, and defects such as flash and uneven wall thickness are reduced.

This utility model relates to the technical field of filling equipment and discloses a material clamping and conveying acceleration device, including a fixed plate. An adjustable support plate and a movable pad are mounted on the top of the fixed plate. A height-adjustable connecting plate is mounted on the top of the support plate. Two adjustable support legs are mounted on the top of the movable pad. A motor mounting plate is fixedly mounted on the top of the support legs. A speed-regulating motor is fixedly mounted on the top of the motor mounting plate. A synchronous pulley is fixedly mounted on the drive shaft of the speed-regulating motor. This utility model accelerates the material by driving a synchronous belt with a speed-regulating motor, enabling the material to enter the cartoning machine at a stable and orderly rhythm. This completely solves the problems of material accumulation, compression, and jamming caused by speed mismatch at the cartoning machine inlet, ensuring the continuous, efficient, and stable operation of the packaging production line.

This utility model discloses a liquid crystal panel moving testing fixture, belonging to the field of liquid crystal panel testing technology. The fixture includes a mounting platform, a guide rail fixed to the mounting platform, a probe holder slidably mounted on the guide rail, a removable elastic probe inserted into the probe holder, a clamping block that elastically presses a flexible circuit board against the rear end of the probe, and a mounting platform for supporting and fixing the liquid crystal panel. The front end of the probe is pressed against the detection point of the liquid crystal panel, and the other end of the flexible circuit board is connected to an external testing circuit via a piano cover, forming a quickly replaceable testing path. This utility model utilizes the cooperation between the elastic probe and the clamping block to achieve a highly reliable, low-contact-resistance electrical connection; the probe holder as a whole can move along the guide rail to adapt to different testing positions; the pluggable probe structure facilitates maintenance, significantly improving testing efficiency and reducing testing costs.

The embodiment of the invention provides an estimation method and device for refrigerant stock of a refrigerating system and the refrigerating system. The method comprises the steps that first temperature information and first pressure information of a refrigerant at an outlet of a condenser and second temperature information of a refrigerant at an inlet of an expansion valve are obtained; according to the first pressure information and the first temperature information, the supercooling degree of an outlet of the condenser is determined; according to the difference between the supercooling degree of the outlet of the condenser and a preset supercooling degree threshold value, it is judged that abnormal flash gas exists in the refrigerating system; according to the first temperature information, the second temperature information and latent heat of vaporization of the refrigerant under the first pressure information, the flash gas ratio is calculated, the supercooling degree of an outlet of the condenser is corrected, and the corrected supercooling degree is obtained; and according to the corrected supercooling degree of the condenser outlet, the refrigerant stock of the refrigerating system is estimated based on a correlation model of the corrected supercooling degree of the condenser outlet and the refrigerant stock. According to the technical scheme provided by the embodiment of the invention, the accuracy of quality estimation of the refrigerant stock can be improved.

This utility model discloses a double-headed tape wrapping machine, including a supporting base block. A base pad is symmetrically threaded to the bottom surface of the supporting base block. A control panel is fixedly mounted on one side of the supporting base block. Adjusting cylinders are horizontally and symmetrically fixed to both ends of the supporting base block. A movable top block is symmetrically connected to the top surface of the supporting base block. A fixed ring is vertically welded to the top surface of the movable top block. A rotating inner ring is sleeved on the inner side of the fixed ring. A material box is fixedly mounted on the inner side of the rotating inner ring. A transmission motor is fixedly mounted on one side of the movable top block. This machine can meet the wrapping requirements of products of different specifications and materials, exhibiting strong adaptability and versatility. Operation is simple and easy to understand, requiring no professional technical training. Furthermore, the reasonable layout of the various components facilitates installation, debugging, and maintenance, reducing the labor intensity of operators and improving work efficiency.

The utility model provides a kind of security filter convenient to replace, including shell and the screw rod of the lifting assembly being arranged in its upper cavity, first sensor, second sensor, sealing unit, a plurality of first filter components and a plurality of second filter components, and first sensor, second sensor are respectively installed in the upper portion and lower portion in shell;The upper portion of shell is connected with upper cover, and opposite sides are respectively provided with water inlet and water outlet, and first filter component and second filter component are sequentially and alternately sleeved in the outside of lifting assembly screw rod below water inlet, and first filter component, second filter component are arranged at angle;Lifting assembly is used to drive first filter component, second filter component up and down movement.The security filter convenient to replace of the utility model, the structure of lifting assembly and filter component being arranged, so that filter plate can be automatically lifted to the outside of shell, facilitate staff maintenance and replacement, reduce the operation difficulty, improve work efficiency.

The invention relates to the technical field of drilling and production equipment testing tools, in particular to a drill rod bidirectional clamping high-temperature testing clamp which comprises a shell, an outer wall clamping mechanism and an inner wall clamping mechanism, and the outer wall clamping mechanism and the inner wall clamping mechanism are arranged in the shell. The outer wall clamping mechanism comprises a contraction elastic clamping sleeve and a first driving device in driving connection with the contraction elastic clamping sleeve, and the inner wall clamping mechanism comprises an expansion elastic clamping sleeve and a second driving device in driving connection with the expansion elastic clamping sleeve. The contraction elastic clamping sleeve and the expansion elastic clamping sleeve are coaxially arranged in a spaced mode, and a clamping channel used for clamping the end of the drill rod is formed between the inner wall of the contraction elastic clamping sleeve and the outer wall of the expansion elastic clamping sleeve. The first driving device can drive the contraction elastic clamping sleeve to contract in the radial direction of the clamping channel, and the contraction elastic clamping sleeve expands and resets in the radial direction of the clamping channel after being undriven; the second driving device can drive the expansion elastic clamping sleeve to expand in the radial direction of the clamping channel, and the expansion elastic clamping sleeve shrinks and resets in the radial direction of the clamping channel after being undriven.

This invention discloses a rail steel transport device, including a fixed ring and a transport vehicle. A connecting ring is movably installed at the top of the fixed ring, and the connecting ring is connected to the transport vehicle through a connector. A telescopic rod is provided on the fixed ring, which is used to achieve docking assembly between adjacent fixed rings. The telescopic rod is equipped with a first screw for locking the telescopic stroke. Movable arms are hinged to both sides of the fixed ring, and clamping arms are hinged to the lower ends of the movable arms. The clamping arms are hinged to each other in pairs, so that the hinge points of the movable arms and clamping arms form a rhomboid structure. The clamping arms are designed with an L-shaped structure. The fixed ring, movable arms, and clamping arms cooperate to form a single clamping structure. This invention uses a double-clamping structure at both ends of the rail steel, combined with a telescopic rod to form an integrated limiting frame. During lifting operations, both ends of the rail are simultaneously stressed, improving the problem of steel body tilting and dragging wear caused by uneven load distribution in traditional single-point fixing.

The invention discloses a static model of a SiC MOSFET device based on physical characteristics, including the drain current I. d Model, channel voltage drop V ds Model, gate-source effective voltage V gs The model and the model of the inversion layer channel carrier mobility μ. The drain current I d The model is an improvement on the standard long-channel device model, characterized by the representation of physical processes such as channel modulation effect and depletion layer bulk charge effect; the gate-source effective voltage model introduces the gate-source effective voltage V. gs The interface state trap is characterized by an asymptotic function as a function of the external gate-source voltage V. GS The process by which charge carriers gradually fill the space between the MOSFET and the charge carriers. This model is highly versatile and has good characterization effects on different types of SiC MOSFET devices. The model has high accuracy, and the model parameters all have certain physical meanings, which is conducive to further research based on this model. At the same time, the model is compact, the simulation speed is fast, and it is suitable for circuit simulation.

A multi-directional core-pulling mechanism and mold are disclosed. The multi-directional core-pulling mechanism includes a first slide block, an upper template, and a first core block, a second core block, and a third core block forming an undercut cavity. The upper template is provided with a first guide member and a second guide member, the first guide member being slidably connected to the first slide block. The first core block is fixed to the first slide block, and the first core block is provided with a slidable second slide block, the second slide block being slidably connected to the second guide member, and the second core block being slidably connected to the second slide block. The third core block is movably connected to the first slide block. In this application, the first guide member and the second guide member guide the movement of the first slide block and the second slide block respectively, enabling the first core block, the second core block, and the third core block to perform core-pulling actions along a first direction, a second direction, and a third direction (intersecting in pairs). The multi-directional core-pulling method can accurately adapt to the molding requirements of products with complex undercut structures, improving the molding quality and demolding success rate of the product.

The utility model relates to a concrete crack repairing device which comprises a bottom plate, rolling wheels are rotationally connected to the four corners of the bottom plate, a bottom control box is arranged on the rear side of the upper surface of the bottom plate, a hollow storage box is arranged on the upper surface of the bottom control box, a conveying pump is further arranged on one side of the upper surface of the bottom control box, and an inlet of the conveying pump communicates with the inner bottom of the bottom control box through a feeding pipe; an outlet of the conveying pump is communicated with a flexible discharging pipe; a lifting driving assembly is arranged on the front side of the upper surface of the bottom plate, a lifting plate is installed on the lifting driving assembly, a protective cover with the front side open and the hollow interior is installed on the front side of the upper surface of the lifting plate, a slicking assembly, a compacting assembly and a material spraying assembly are sequentially arranged in the protective cover from top to bottom, and the end of the discharging pipe is connected with the material spraying assembly. The concrete crack repairing device is high in automation degree, uniform in repairing material mixing, easy and convenient to operate, capable of reducing material waste, high in adaptability and capable of effectively improving concrete crack repairing efficiency and quality.

The angle-adjustable fixing tool is characterized in that a cylinder and an upper stand column form a two-step cylinder, the diameter of the cylinder is smaller than that of the upper stand column, the cylinder is inserted into an inner hole of a lower stand column and is in clearance fit with the inner hole, and the lower end of the upper stand column is pressed at the upper end of the lower stand column; the lower supporting plate is fixed to the upper stand column, the bolt penetrates through a through hole formed in the lower supporting plate and a through hole formed in the upper supporting plate correspondingly, and the nut is arranged on the bolt in a screwed mode to fixedly connect the lower supporting plate with the upper supporting plate. The upper supporting plate is fixedly connected with the V-shaped iron; the drill bit is placed in a V-shaped groove of the V-shaped iron; the drill bit is pressed and fixed in the V-shaped groove by the pressing plate positioned above the V-shaped groove of the V-shaped iron; the round nut is welded at the tail end of the V-shaped iron; the tool bolt penetrates through the round nut in a screwed mode, and the tail end of the tool bolt makes contact with the tail end of the drill bit. The drill bit supporting block is fixed to the V-shaped iron, and the head of the drill bit supporting block is inserted into the spiral groove of the drill bit. The drill bit polishing and fixing tool is low in cost and high in universality.

This invention discloses a testing device and method for tensile deformation of fiber-reinforced cementitious materials, belonging to the field of engineering material testing technology. The testing device mainly includes three parts: a support frame, a lever system, and a specimen mounting system. The main steps of the testing method include: lifting the lever to unload; installing the specimen mounting system, slowly releasing the lever and finely adjusting the position of the tensile specimen to reduce eccentricity and achieve preloading; repeatedly lifting and unloading the lever, and finely adjusting the centering tensile clamp and the tensile specimen; installing the displacement sensor and zeroing it in the unloaded state; adjusting the weight of the lever according to the real-time display value of the force sensor to complete the suspension and precise loading of the tensile specimen. This method applies tensile force to the cement-based composite material through the lever mechanism and performs arbitrary crack propagation evaluation based on the micro-cracks in the cement-based material using digital image processing, which can quantitatively characterize the creep deformation and crack propagation process of cement-based composite materials under continuous tensile load.

This invention discloses an online self-testing and fault diagnosis system and method for underwater acoustic transducers based on capacitance parameter extraction, belonging to the field of underwater acoustic equipment testing technology. The system includes a control processing module, an excitation signal generation module, a sampling resistor, a switching module, a signal conditioning module, a sampling module, and an equivalent capacitance of the underwater acoustic transducer. The method treats the underwater acoustic transducer as an equivalent capacitor and measures the capacitance using the series voltage divider principle, specifically including the following steps: Step S1: Mode switching; Step S2: Excitation signal injection; Step S3: Signal acquisition; Step S4: Frequency domain feature extraction; Step S5: Electrical parameter calculation; Step S6: State discrimination; Step 7: Mode recovery. Compared with existing technologies, this invention has strong versatility, simple structure, low implementation cost, supports online self-testing and non-destructive testing, high measurement accuracy, strong anti-interference ability, strong fault identification ability, strong scalability, and wide applicability.

This invention provides a method for controlling the weight of a solid tire carcass and its application, relating to the field of tire carcass technology. The method includes the following steps: (a) weighing the base rubber after molding and comparing it to the standard weight of the base rubber to obtain a weight difference value; (b) correcting the amount of intermediate rubber based on the weight difference value from step (a), weighing the tire carcass after molding the intermediate rubber, and comparing it to the standard weight of the intermediate rubber tire carcass to obtain a weight difference value; (c) correcting the amount of tread rubber used in one stage based on the weight difference value from step (b), weighing the tire carcass after molding the first stage of tread rubber, and comparing it to the standard weight of the first stage of tread rubber tire carcass to obtain a weight difference value; (d) correcting the amount of tread rubber used in the second stage based on the weight difference value from step (c), and molding the tread rubber in two stages to obtain the finished tire carcass. This invention, through segmented weighing and multi-stage correction, gradually offsets the weight errors in each molding stage, achieving a tire carcass weight error of ±0.1 kg, far superior to existing weight control precision.

The application discloses a shield tunnel excavation disturbance data intelligent identification method based on dynamic time sequence prediction, which comprises the following steps: in the case of excavation disturbance, collecting various time sequence data of shield tunnel monitoring in real time, carrying out denoising, interpolation and normalization processing on original data, and inputting time window samples into a DFCM algorithm; calculating a membership matrix based on the distance between samples and cluster centers, and updating the membership in real time, and constructing an LSTM model of the membership vector output by the DFCM clustering algorithm; predicting the membership of the next time step, outputting a predicted difference vector, and determining a difference dynamic threshold value by using an adaptive threshold method, and when the predicted difference exceeds the threshold value, it is judged that the data is disturbed. The method can realize real-time identification and uncertainty quantification of disturbed data in a tunnel structure monitoring environment with strong interference and high noise, improve the accuracy and stability of underground structure health monitoring, and is suitable for urban shield tunnel operation monitoring and maintenance.

The application discloses a dual-redundancy steering engine control system for a UAV and a configuration method, comprising M steering engine controllers and N steering engines; the M steering engine controllers are connected with a flight pipe computer through a bus; each of the steering engine controllers has n channels and is connected with n steering engines; N>n, N>=M; the steering engines comprise dual-redundancy linear steering engines, dual-redundancy rotary steering engines, single-redundancy linear steering engines and single-redundancy rotary steering engines; wherein the dual-redundancy linear steering engines are connected with one channel of two different steering engine controllers respectively, the dual-redundancy rotary steering engines are connected with one channel of two different steering engine controllers respectively, and the single-redundancy linear steering engines and the single-redundancy rotary steering engines are connected with one channel of corresponding steering engine controllers. The dual-redundancy isosmorphism design is adopted, the two redundancies do not interact, work independently, the structure is simple, and the reliability is high.

The invention belongs to the technical field of magnetic measurement testing, and particularly relates to a magnetic moment coil calibration device and method, which can realize that a magnetic moment coil keeps still in the calibration process, realizes the change of magnetic flux through the change of current, and then calculates the magnetic moment through the variable quantity of the magnetic flux. In the invention, the relative position between the calibrated magnetic moment coil and the standard constant magnetic field coil as the magnetic flux induction coil is always kept fixed in the calibration process, so that the problem that the magnetic axis is difficult to align accurately due to physical movement in the traditional drawing method or overturning method is thoroughly avoided; therefore, the reference alignment precision and reliability of calibration are improved. Magnetic moment coils with different sizes can be matched through the magnetic flux induction coils with different uniform area sizes, and the problem that the pulling or overturning operability of large magnetic moment coils is poor can be avoided.

The utility model discloses large -scale oil cylinder piston and piston rod's locking assembly fixture, including assembly drive arrangement, and assembly drive arrangement is provided with the central shaft, and the outside rotation cooperation of central shaft has the rotary element, and the cooperation end of rotary element is used for installing the piston, and the cooperation hole of central shaft can be inserted to the assembly of the assembly end of piston rod, and the cooperation hole is coaxial arrangement along the central axis of piston rod, when assembling, the vertical placement of piston rod makes its assembly end end face upward, and the upper coaxial sleeve of piston rod installs the piston, and the cooperation hole can form the circumferential limiting force and vertical support force of around its axis to the inserted part of central shaft, when the rotary element rotates relative to central shaft, can drive the rotation of piston relative to piston rod, and makes the assembly hole of piston can be screwed with the external thread of piston rod assembly end and is locked together, the utility model discloses can realize more accurate and smooth locking assembly with the aid of the dead weight of piston and piston rod, and then improves the assembly efficiency.

The application discloses an intelligent internet unmanned aerial vehicle (UAV) box and an automatic docking and locking control system thereof, and belongs to the technical field of UAV cargo hoisting. The system comprises a suspension connection unit, an intelligent cargo box unit, a positioning unit, a mechanical lock unit and an intelligent control unit. When the suspension unit and the positioning unit are magnetically connected, the intelligent control unit determines the locking or releasing mode through the number of signal contact connections; in the locking mode, a power-on timing control module supplies a first direction current to an electromagnetic adsorption module, sequentially drives a lock mechanism to close, and realizes mechanical locking; in the releasing mode, a reverse current is supplied, the lock mechanism is sequentially driven to open, and automatic unloading is realized. The system realizes full-process automation of UAV hoisting, has a high-reliability double-locking mechanism, effectively prevents aerial misrelease, is integrated into a smart internet network, and significantly improves the safety, efficiency and informatization level of hoisting operation.