90results about How to "Realize the control effect" patented technology

The utility model relates to the technical field of conveying belts, in particular to a waste material conveying belt of a steel crusher, which comprises a frame body, a waste material conveying belt and a waste material conveying belt, the blocking mechanism comprises a supporting frame, the supporting frame is fixedly connected to the surface of the conveying frame, an adjusting groove is formed in the surface of the supporting frame in a penetrating mode, an adjusting rod is slidably connected to the inner side of the adjusting groove, the outer surface of the adjusting rod is sleeved with a threaded sleeve, and a baffle is fixedly connected to the surface of the adjusting rod. And the surface of the baffle plate is fixedly connected with a stop lever. Through the connection of the stop lever and the baffle and the abutting connection of the stop lever and the supporting frame, the stability performance of the baffle during use is improved, the blocking control effect of conveying and falling of the baffle is achieved, and through the connection of the screw rod and the moving groove and the connection of the supporting spring and the adjusting block, the action angle of the water conveying pipe in the containing groove is adjusted and controlled. And the spraying use range of the connecting belt is widened.

The invention relates to the technical field of artificial intelligence, in particular to an image generation method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a reference image and respective control information of each reference object in the reference image, the control information representing an adjustment condition of the corresponding reference object under at least one specified adjustment dimension; obtaining a corresponding low-rank adaptive weight set based on the control information associated with each reference object; each denoising network layer is associated with at least one adjustment dimension; adjusting network parameters of each denoising network layer in a pre-trained image generation model based on each obtained low-rank adaptive weight set, and obtaining a trained image generation model; and inputting the reference image and each piece of control information into a trained image generation model to obtain a condition image generated by combining the respective mask area of each reference object. Through layered and regional control, conflicts among lora are avoided, and the accuracy of the generated image is improved.

The invention discloses a data permission controller and a data platform. The data permission controller comprises a predefined annotation, a section and a permission checker, the predefined annotation is used for determining the opportunity when the section is woven into the program of the data platform, annotation information of a basic element in the program is marked, and / or annotation information of a member variable in the basic element is associated with verification logic, and the verification logic is included in a permission verifier; the tangent plane is used for being woven into a program of the data platform and used for determining target annotation information corresponding to the basic elements of the entry point, responding to data access, and conducting data permission control according to target verification logic associated with the target annotation information. The data permission controller comprises the annotation, the section and the permission checker, and a lightweight independent framework can be formed and woven into the data platform in a weak intrusion mode, so that the data platform can simply and flexibly achieve the control effect of the row-level data permission through the data permission controller.

The utility model relates to the technical field of sanding controller detection, in particular to a detection device of a locomotive sanding controller, which comprises a casing, a display screen and a circuit board, control buttons, a frequency selection switch and a connector are arranged on the surface of the casing, and the control buttons comprise a main power switch button and a frequency selection main switch button. Under the action of the frequency selection switch and three groups of frequency circuits in the casing, the detection application range and performance of the device are improved, so that the device has the functions of high universality, accurate measurement and simplicity and easiness in operation, the maintenance efficiency of the sanding device is greatly improved, and the safety production of railway transportation is effectively guaranteed; the limiting operation of the acting position of the connecting frame on the supporting plate is completed, the connecting frame and the supporting plate are rotationally connected, the situation that an adjusting rod and a pressing ring on the connecting frame affect the installation operation between the aviation plug cord and a connector is avoided, and the connection stability performance and effect between the aviation plug cord and equipment are improved.

The utility model relates to the technical field of compaction degree measurement, in particular to a roadbed compaction degree measuring device which comprises a frame, a first motor, an electric cylinder and a second motor, wheels are movably connected to the surface of the frame, a handle is fixedly connected to the surface of the frame, and a limiting groove is formed in the surface of the frame. Through the connection of the rack and the pull rope and the connection of the pull rope and the impact hammer, the supporting of the action position of the impact hammer on the frame is realized, and under the action of the storage bin, the measurement operation range and the performance of equipment are improved while the road surface is not damaged by filling gravel in the impact hammer and changing the action weight of the impact hammer; and under the connection of the impact hammer and the limiting plate, through the connection of the limiting plate and the sliding block and the sliding connection of the sliding block and the sliding groove, the effect of limiting and supporting the action angle when the impact hammer freely falls is achieved, and the impact hammer and the limiting cylinder are prevented from colliding to influence the measurement precision of the roadbed compactness.

The utility model relates to the technical field of precision parts, in particular to a precision part transfer device which comprises a supporting bottom plate, a supporting plate is fixedly connected to the surface of the supporting bottom plate, a sliding groove is formed in the surface of the supporting plate, and a containing plate is fixedly connected to the surface of the supporting bottom plate. And the surface of the sliding groove is slidably connected with an adjusting plate and a control plate, the surface of the adjusting plate is fixedly connected with a connecting pull rope, and the bottom end of the supporting bottom plate is movably connected with a rotating wheel. Under the action of the connecting ring, knotting use of the pull rope on the connecting ring is conveniently controlled, the supporting effect on the action positions of the control plate and the adjusting plate is achieved, under the action of the protective cover, the transfer protection effect on the precise parts placed on the placing plate and the placing cylinder is achieved, the safety performance of transfer and conveying is improved, and under the action of the abutting plate, the safety of the precise parts is improved. And the effect of abutting against and supporting the parts placed in the placing barrel is achieved, and the stability performance and effect of placing and using of the parts are improved.

The utility model relates to the technical field of lithium battery production, in particular to a pulping mixer for lithium battery production, which comprises a machine room and a motor, the bottom end of the machine room is fixedly connected with supporting legs, the bottom end passage of the machine room is connected with a discharge port, the top end of the machine room is connected with a cover plate in an abutting manner, the motor is fixedly connected to the surface of the cover plate, and the motor is fixedly connected with the bottom end of the machine room. The upper surface of the cover plate is fixedly connected with a placing bin, an output shaft of the motor is fixedly connected with a rotating rod, the surface of the rotating rod is fixedly connected with a stirring rod, and the outer surface of the rotating rod is sleeved with an acting sleeve. Through abutting connection of the abutting plate and the placing bin, dismounting and mounting of the feeding bin on the placing bin are facilitated, dismounting and cleaning operation of the feeding bin is further facilitated, the use performance of the feeding bin is improved, the effect of regulating and controlling the acting position of the acting sleeve on the rotating rod is achieved under penetrating connection of the inserting rod and the inserting groove, and the working efficiency is improved. And the application range and the mixing performance of the stirring rod in the machine room are improved.

The utility model relates to the technical field of building auxiliary tools, in particular to an I-shaped steel crowbar which comprises a crowbar body, a prying block and a clamping block, the prying block is arranged on the outer side wall of one end of the crowbar body, and the clamping block is installed on the outer side wall of the crowbar body in a sliding mode and is adjacent to the prying block. And a clamping gap for clamping and fixing I-shaped steel is formed between the clamping block and the prying block. The method has the effects that the situation that the I-shaped steel topples over on the truss when the crowbar drags the I-shaped steel is improved, and the assembling efficiency of the truss is improved.

The invention relates to the technical field of pipe jacking construction, in particular to a pipe jacking construction jacking force transmission device which comprises a supporting frame, a cross beam and a steel column, the supporting frame and the cross beam are perpendicularly welded, the steel column is connected with the supporting frame through the cross beam, an abutting disc is arranged on the surface of the steel column, and a sliding rod is fixedly connected to the surface of the abutting disc. A sliding groove is formed in the steel column, a control groove is formed in the inner side of the sliding groove, an adjusting rod is inserted into the surface of the steel column, an abutting block is fixedly connected to the bottom end of the adjusting rod, and a screw hole is formed in the outer surface of the steel column. The supporting frame is connected with the cross beam, under the action of the cross beam, the placing and supporting effect on the steel column is achieved, under the abutting contact of the steel column and the wall body and on the premise that the self-sufficient stability is met, the requirement for transmission of pushing counter-force in the pushing process of the jacking pipe can be met, and the pushing effect of the jacking pipe is improved. And the problem that the middle part of the station cannot provide a stable facility to provide pushing counter-force is well solved.

The utility model provides a kind of unmanned plane, it is related to the technical field of plant protection.The unmanned plane includes arm and is arranged on the centrifugal spraying assembly of arm, rotor assembly and electric governor assembly, electric governor assembly has first mounting surface and second mounting surface, at least one spraying electric governor is installed on first mounting surface, at least one power electric governor is installed on second mounting surface;Spraying electric governor and the spraying motor electric connection of centrifugal spraying assembly, power electric governor and the power motor electric connection of rotor assembly;Arm has inner cavity, main wire hole is set up on arm, first wire inlet hole, first wire outlet hole are equipped on spraying electric governor;Second wire inlet hole corresponding with main wire hole and second wire outlet hole corresponding with the power motor of rotor assembly are equipped on power electric governor.The utility model can avoid the large-area exposure of wire harness, and can support the wiring of the situation that spraying electric governor and power electric governor are installed on arm simultaneously.

The invention provides a data processing method and system and electronic equipment, and relates to the field of data processing.The method can utilize a probe to control a target application to execute SQL statements on a database in a non-intrusive mode, refined statistical records can be made on the SQL statements, code modification on an application program is avoided, low coupling of the program is guaranteed, and the service life of the application program is prolonged. Meanwhile, the control effect on the SQL hierarchy is achieved, and the safety and stability of the application program are improved; by introducing a specific server, such as a Nacos server, as a configuration center, a management and control process of a custom strategy can be realized in a data request process, decoupling of a service platform is realized, and matching and execution of an SQL flow limiting strategy can be focused on.

The utility model provides a desulfurization and dust removal mechanism for a boiler, and relates to the technical field of dust removal equipment. The middle section of a main pipeline of the pipeline assembly is provided with branch pipelines, the branch pipelines are arranged to be of two symmetrical and identical structures, the pipeline assembly is directly arranged to be of a two-way branch pipeline structure, the control assembly is installed on the pipeline assembly, and the guiding direction of the pipeline assembly is directly controlled. The filter assembly of the replacement assembly directly corresponds to the branch pipelines of the pipeline assembly, when the bearing assembly on the replacement assembly on one side is blocked, the replacement assembly directly rotates on the bearing assembly, and then the filter assembly is clamped through the clamping assembly of the bearing assembly, so that replacement and cleaning of the filter assembly are achieved; the problems that a filter bag structure is prone to being blocked for a long time and needs to be manually cleaned and replaced, and unnecessary loss is caused when equipment is stopped during replacement and cleaning are solved.

The utility model relates to the technical field of elevators, in particular to an elevator with a protection plate structure, which comprises a bin and a connecting plate, the connecting plate acts on the inner side of the bin, a supporting block is arranged at the bottom end of the connecting plate, a clamping block is connected to the top end of the connecting plate in an abutting mode, and a control plate is fixedly connected to the surface of the supporting block. The surface of the control plate is fixedly connected with a connecting block, and the surface of the control plate is connected with a screw rod in a penetrating mode. Under the abutting connection of the abutting block and the connecting block, the supporting effect on the acting position of the abutting block is achieved, the supporting stability performance of the supporting block on the acting position of the connecting plate in the bin is improved, and under the connection of the clamping block and the telescopic spring, through the abutting connection of the abutting plate and the bin and the abutting connection of the clamping block and the connecting plate, the working efficiency is improved. And the stability performance of the connecting plates placed in the bin is further improved, and under the abutting contact of the reinforcing plates and the connecting plates, the connecting stability performance and effect between the connecting plates are improved.

The utility model relates to the technical field of samplers, in particular to a comprehensive atmospheric gas sampler supporting frame which comprises a supporting disc, an adjusting rod is fixedly connected to the surface of the supporting disc, a threaded sleeve is connected to the outer surface of the adjusting rod in a sleeved mode, a rotating ring is movably connected to the surface of the threaded sleeve, and a movable rod is fixedly connected to the outer surface of the rotating ring. The surface of the movable rod is movably connected with a lantern ring, and the surface of the supporting disc is movably connected with supporting legs. Through the connection of the supporting plate and the compressed spring and the connection of the compressed spring and the abutting plate, the stability performance of the acting position of the screw rod on the fixed base is improved, the connection convenience between the sampler and the fixed base is facilitated, the use performance of the connection is improved, and the service life of the connection is prolonged; the effect of regulating and supporting the action angle of the fixed base on the supporting disc is achieved, and the connecting use range and performance of the fixed base to the sampler are improved.

The invention relates to the technical field of charging piles, in particular to a charging pile with a sealing structure, and the charging pile comprises a main body which comprises a base, the surface of the base is fixedly connected with the charging pile, the surface of the charging pile is provided with a display screen, the surface of the charging pile is connected with a power transmission line, and the surface of the power transmission line is fixedly connected with a charging head; and the sealing mechanism comprises a control panel, a groove is formed in the surface of the charging pile, the control panel is slidably connected to the inner side of the groove, and a telescopic spring is fixedly connected to the surface of the control panel. The fixing and supporting effect on the position of the air bag is achieved through abutting of the abutting ring and the air bag, the control effect on the action volume of the sealing ring is achieved under access connection of the air bag and the sealing ring, the sealing effect is achieved when the charging head and the charging pile are connected in an inserted mode, and the elastic rotating effect of the rotating ring on the charging head is achieved under the action of the fixing spring; and the convenience of mounting and replacing the sealing ring on the charging head is improved.

The present invention discloses a plasmon type two-dimensional material photoresistance variable device, array and in-sensor color image encryption method. The present invention introduces the surface plasmon effect of precious metals into a photoresistance variable device, constructs a plasmon type photoresistance variable device, and studies an in-sensor color image encryption method based on a surface plasmon type photoresistance variable device array. While realizing color image perception and storage through the non-volatile storage characteristics of the device, the reconfigurable physical unclonable function key is collected through the intrinsic random characteristics of the high-resistance state resistance value of the resistive variable device, thereby realizing high-performance in-situ encryption of in-sensor color images at the hardware level, which can not only reduce data transmission, improve efficiency, and reduce power consumption, but also increase key randomness and improve security.

The utility model relates to the related technical field of spraying workbenches, in particular to a rotary spraying workbench which is characterized in that a rotary bottom groove is formed in a base, a rotary base is arranged in the rotary bottom groove, a supporting column is arranged on the surface of the rotary base, a limiting groove is formed in the surface of the supporting column, a threaded hole is formed in the supporting column, and a limiting plate is arranged on the surface of the limiting groove; a threaded rod is arranged in the threaded hole, a baffle is arranged on the surface of the spraying platform, a circular groove is formed in the surface of the spraying platform, a rotating groove is formed in the spraying platform, and an adjusting plate is arranged on the surface of the circular groove; the spraying platform has the beneficial effects that the height of the spraying platform is adjusted through a threaded rod, the defect that the height of a traditional spraying platform cannot be adjusted is overcome, the threaded rod is controlled through an adjusting plate, the adjusting plate is stored through a circular groove, and the situation that normal use of the spraying platform is affected by the adjusting plate is avoided.

The mechanical arm comprises a mechanical arm mechanism and an endoscope control piece fixed to the execution tail end of the mechanical arm mechanism, the mechanical arm mechanism comprises a rotating base and a large arm rotationally connected to the top end of the rotating base through a robot joint motor, and the large arm is connected with the mechanical arm through a clamping jaw. The robot joint motor is rotationally connected to a small arm at the top end of the large arm, and a control pedal is connected to the side wall of the rotating base through a cable. According to the mechanical arm used for controlling the endoscope and the clamping jaw provided in the technical scheme, wide-range internal posture control over the endoscope is achieved through the mechanical arm, and front-back and left-right movable adjustment of the endoscope can be controlled through the endoscope control piece at the tail end of the mechanical arm; moreover, the endoscope clamping jaw for clamping the endoscope is arranged at the tail end of the endoscope control piece, the servo electric cylinder is used for pushing all the connecting rods to clamp the endoscope, the servo electric cylinder is used for achieving the control effect on the rotating posture of the endoscope, and then the purposes of stabilizing the endoscope and controlling the endoscope to work are achieved.

The present invention discloses an expandable-foldable RCS adjustable reflector and a control method thereof. The reflector comprises a layer of reflector components and another layer of reflector components arranged in a mirror image, each reflector component comprises n reflector units connected to each other, and n is a positive integer greater than or equal to 6; the two layers of reflector components are correspondingly hinged through n supporting points of each layer to form a movable structure; each layer of reflector components is provided with an expansion-folding mechanism, which is used to expand or fold the expandable-foldable RCS adjustable reflector as a whole about an expansion-folding axis, and the expansion-folding axis is a line passing through the centers of two joint interface diameter surfaces, and the RCS is controlled by different expansion degrees of the joint interface diameter surfaces. The problem that the product structure volume is fixed, RCS control cannot be performed, or RCS control within a very small range in the prior art is solved.

The utility model discloses a tobacco planting ditching device relates to tobacco planting technical field, specifically is a tobacco planting ditching device, including double -deck assembly frame, the both sides of double -deck assembly frame upper surface are equipped with a plurality of jack, the inside plug -in of jack is used for the bolt of fixed support, the upper surface fixedly connected with connecting seat of support, the upper surface rotationally connected with the nut of connecting seat, the inner wall fixedly connected with the guide block of connecting seat, the inside plug -in of connecting seat is screw rod. When using, personnel can adjust the position of support through dismantling bolt to control the position of ditching shovel, simultaneously, personnel can increase or decrease ditching shovel according to need, greatly promote the excavation efficiency, and, can rotate the nut through spanner to control the height of screw rod to realize the control effect to the height of ditching shovel, cooperate and drive this equipment to the land and carry out ditching operation.

The utility model relates to the technical field of gas tanks, in particular to a gas tank shearing and flattening all-in-one machine which comprises a machine frame and a telescopic air cylinder, a placing platform is arranged on the surface of the machine frame, the telescopic air cylinder acts on the upper surface of the machine frame, an output shaft of the telescopic air cylinder is fixedly connected with a pressing block, and the pressing block is arranged on the placing platform. An adjusting rod is connected to the surface of the rack in a penetrating mode through threads, and a rotating shaft is movably connected to the surface of the adjusting rod. Through the connection of the motor and the limiting plate and the sliding connection of the limiting plate and the limiting groove, the effect of limiting the sliding angle of the motor in the control groove is achieved, under the connection of the motor and the cutting knife, the cutting operation of a gas tank is achieved, under the action of the pressing block, extrusion control of the gas tank is achieved, the processing performance and effect of the gas tank are improved, and through the action of the check block, the gas tank can be cut conveniently. And the effect of supporting the position of the gas tank placed on the placing platform is achieved, and the situation that the position of the gas tank is moved during extrusion operation, and the treatment effect is affected is avoided.

The utility model relates to the technical field of traction vehicle anti-collision, in particular to a vehicle loading building traction vehicle anti-collision combined device which comprises a track, a connecting plate, a supporting frame and a connecting frame, a traction vehicle is arranged on the surface of the track, a first buffer rod is connected to the surface of the traction vehicle, and a control plate is movably connected to the surface of the connecting plate. Under the abutting connection of the abutting block and the connecting plate, the moving friction force of the tractor is increased, the speed reduction effect is achieved, under the connection of the second air cylinder and the control plate, the action angle of the control plate on the connecting plate is changed through the action of the second air cylinder, more speed reduction protection modes are provided, and the speed reduction effect is improved through the action of the motor. The effect of controlling the action angle of the rotating plate and the gland is achieved, the effect of regulating and controlling the action angle of the supporting plate on the supporting frame is achieved, the position of the second buffering rod is conveniently changed when the second buffering rod is not used, and the supporting plate and the second buffering rod are prevented from affecting moving operation of the tractor on the track.

The invention discloses a fluidized bed reactor for propane dehydrogenation with an accurate control function, which mainly comprises an expansion section, a reaction section and a gas inlet tail section which form a straight cylindrical reactor from top to bottom, a sealing plate is arranged at the upper part in the expansion section, and a gas return space is formed above the sealing plate; a plurality of exhaust valves in a circumferential array are mounted outside the expansion section and are communicated with the air return space, and a feeding pipe is mounted below one side of the outside of the expansion section. The reactor has the advantages that the reactor is divided into the expanding section, the reaction section and the gas inlet tail section from top to bottom, the expanding section, the reaction section and the gas inlet tail section form a straight barrel shape through flange structures, the distribution plate is mounted in the reaction section, and the gas collecting conical barrel capable of reciprocating up and down is mounted in the reaction section, so that gas after reaction can be discharged from the gas collecting conical barrel; the internal space of the reaction section can be changed by adjusting the vertical position of the gas collection cone, so that certain fluid pressure is generated between the gas collection cone and a reactant, and the effect of controlling the reaction process is realized.

The utility model discloses an adjustable guide rail type sign light supplement lamp which comprises a guide rail, the top of the guide rail is slidably connected with a linear motor, the top of the linear motor is provided with a mounting frame, one side of the interior of the mounting frame is symmetrically and slidably connected with guide rods, and one end of each guide rod is fixedly connected with a trapezoidal seat. Springs are symmetrically and fixedly connected between one side of the trapezoidal seat and the mounting frame, and due to the fact that the top of the trapezoidal seat is a bevel edge, in the downward pressing process, the trapezoidal seat extrudes the springs to be stored in the mounting frame, at the moment, the concave box can be smoothly mounted in the mounting frame, and after the concave box is mounted in place, the concave box is fixed. The trapezoidal seat is clamped to the top of the concave box again under the elastic effect of the spring, then the rapid installation effect can be achieved, when the device needs to be disassembled, the illumination adjusting mechanism can be rapidly taken out only by dragging the pull ring to be pulled outwards, and therefore the device is simple in structure and convenient to operate, and the device can be conveniently and rapidly disassembled and assembled.

The utility model discloses a front-end computing device applied to intelligent traffic. The front-end computing device comprises a main control unit, a communication interface unit, a peripheral equipment interface unit and a power supply module, the main control unit, the communication interface unit and the peripheral equipment interface unit are arranged, and the peripheral equipment interface unit is connected with the traffic data acquisition equipment, so that traffic data acquired by the traffic data acquisition equipment can be transmitted to the main control unit, and the main control unit calculates and processes the acquired traffic data to generate a control instruction; the communication interface unit is connected with the communication module, the control instruction is sent to the external equipment, the effect of traffic environment monitoring and control can be effectively achieved, and therefore the defect that traffic environment monitoring and emergency are not ideal in the prior art is overcome.

The utility model relates to the technical field of measurement, in particular to a measurement observation pillar which comprises an abutment, the surface of the abutment is fixedly connected with a supporting plate, the surface of the supporting plate is fixedly connected with a first protective fence, the surface of the abutment is fixedly connected with a second protective fence, and the upper surface of the abutment is fixedly connected with a supporting column. According to the utility model, the abutment is used for replacing a tripod for measurement, various measurement errors caused by vibration caused by surrounding environment are reduced, observation conditions are improved, control points are more effectively protected, the measurement time is effectively shortened, the working efficiency is improved, the measurement precision is also improved, and the measurement errors are reduced. The quality problem caused by measurement errors is avoided, the abutting supporting effect between the pressing plate and the reflecting plate is achieved through the effect of the adjusting rod, the roadside warning effect is achieved under the effect of the reflecting plate, and the using safety performance of the abutment is improved.

The utility model relates to the technical field of truck scale, concretely is a kind of electronic truck scale with automatic unloading function, including truck scale, unloading plate and motor, the surface of truck scale is fixedly connected with support block, the surface of support block is connected with the protection cover by bolt, the surface of unloading plate is fixedly connected with connecting frame, the surface of connecting frame is fixedly connected with adjusting rod, the outer surface of support block is movably connected with control sleeve, the surface of adjusting rod penetrates control sleeve.The utility model is connected through the connection of adjusting rod and connecting frame, the connection of connecting frame and unloading plate, completes the control operation to the action position of unloading plate on truck scale, reaches the automatic unloading effect on the surface of truck scale, under the connection of connecting band and screw rod, the connection of screw rod and screw sleeve, realizes the control effect of connecting angle of guide plate on unloading plate, improves the unloading cleaning performance and effect of unloading plate to material falling on truck scale.

The utility model relates to the technical field of polishing tables, in particular to a metal piece machining polishing table which comprises a supporting seat, a protective cover is fixedly connected to the surface of the supporting seat, a containing disc is movably connected to the surface of the supporting seat, a fixing plate is fixedly connected to the surface of the protective cover, and an illuminating lamp is movably connected to the surface of the protective cover. A connecting hook is buckled to the surface of the illuminating lamp in a hanging mode, a pull rope is fixedly connected to the surface of the connecting hook, and a limiting column and a supporting column are fixedly connected to the inner side of the protective cover. Under the connection of the pull rope and the connecting hook and the action of the pull rope, the effect of regulating and controlling the action angle of the illuminating lamp on the protective cover is achieved, under the connection of the abutting rod and the abutting plate, the supporting control operation of the action angle of the pull rope on the fixing plate is completed, and through the abutting connection of the screw ring and the containing disc, the supporting angle of the illuminating lamp is controlled. The effect of supporting and controlling the acting position of the pressing plate on the containing disc is achieved, and the supporting and fixing range and performance of the metal pieces on the containing disc are improved.

The utility model relates to the technical field of vegetation sampling, in particular to a vegetation sampling frame for forestry survey, which comprises a support frame, a handle is fixedly connected to the surface of the support frame, rotating wheels are movably connected to two sides of the support frame, a protective cover is fixedly connected to the surface of the support frame, an adjusting column is arranged on the lower surface of the support frame, and the adjusting column is movably connected with the rotating wheels. A stepping motor is fixedly connected to the upper surface of the supporting frame, and a lead screw is arranged on the inner side of the stepping motor. Under the connection of the pressing ring and the adjusting rod, the action position of the pressing ring is changed under the action of the telescopic air cylinder, so that the effect of pressing and supporting the sample position of a sampling area is achieved, the damage to vegetation at the sampling position caused by the rotating torsion of the sampling barrel is avoided, and the sampling stability is improved; and through sliding connection of the sliding plate and the adjusting groove, the acting position of the abutting plate on the pressing ring can be conveniently changed, and the abutting supporting effect and performance of the pressing ring are improved.

This invention discloses a method, system, controller, and medium for suppressing unbalanced MMC circulating current, relating to the field of MMC control. The method includes: acquiring three-phase voltage parameters, three-phase current parameters, and grid angular frequency of the MMC; performing phase sequence decomposition on the three-phase voltage parameters, three-phase current parameters, and grid angular frequency to obtain the positive-sequence and negative-sequence components of the three-phase voltage and three-phase current; using a PI controller to perform inner-loop regulation on the positive-sequence and negative-sequence components of the three-phase voltage and three-phase current, outputting the positive-sequence and negative-sequence reference components of the three-phase voltage in a synchronous rotating coordinate system; performing inverse transformation of the positive-sequence and negative-sequence reference components of the three-phase voltage according to the grid angular frequency, and adding the results of the inverse transformation to obtain the three-phase voltage reference components; performing carrier phase-shift modulation on the three-phase voltage reference components to generate the port levels required for each phase arm, and controlling the operating state of the IGBTs in each phase arm submodule of the MMC based on the port levels.