748 results about "Linear arrays" patented technology

The invention relates to the field of underwater sound signal processing, in particular to an underwater DOA (direction of arrival) estimation method based on graph nerves and a convolutional neural network, which comprises the following steps: 1, establishing a linear array, and enabling narrow-band signals to simultaneously reach an underwater sound array; 2, performing signal preprocessing to obtain a signal covariance matrix, and performing normalization processing; 3, extracting correlation between array elements and spatial features of array signals, and performing data supplementation on sparse linear array information; 4, forming a double-branch structure, enhancing the information aggregation capability, and extracting features from a space path and a time domain path; and 5, constructing an adjacent matrix, filling node features of damaged array elements, adopting a double-branch structure, extracting spatial features and time domain features, carrying out feature integration, and outputting a DOA estimation result. The spatial correlation between array elements is extracted and the array sparsity problem is processed by using the graph neural network, and the time domain features of the signals are extracted in combination with the convolutional neural network, so that more accurate and more robust DOA estimation can be realized under the conditions of low signal-to-noise ratio and array sparsity.

The invention relates to the technical field of reaction kettles.The reaction kettle comprises a kettle body, a protective cover is fixedly connected to the top of the kettle body, a feeding opening is formed in the top of the kettle body in a penetrating mode, a supporting plate is fixedly connected to the bottom of the interior of the kettle body, and stirring shafts are rotationally connected to the interiors of the supporting plate, the kettle body and the protective cover; the stirring shaft is located at the center of the kettle body, the surface of the stirring shaft is fixedly connected with three stirring blades, the three stirring blades are distributed in a linear array from top to bottom, and the bottom of the stirring shaft is fixedly connected with a paddle. Through the heterogeneous sensing network constructed by the multi-parameter sensing subsystem, synchronous monitoring of multi-dimensional physical quantities such as discharge port pressure, stirring torque and kettle wall vibration is realized, the limitation of traditional single parameter monitoring is broken through, and the early recognition precision and reliability of the crystallization blockage risk are greatly improved.

The utility model provides a branching device for a distribution box, which relates to the technical field of distribution boxes and comprises a distribution box body, one side of the distribution box body is provided with a wire inlet hole, the rear inner wall of the distribution box body is provided with a bunch adjusting mechanism, and the bunch adjusting mechanism comprises a fixed support. The two fixing supports are symmetrically distributed and fixedly connected with the rear inner wall of the distribution box body, the front faces of the fixing supports are fixedly connected with limiting plates, the upper ends of the limiting plates are provided with limiting grooves distributed in a linear array mode, the front faces of the fixing supports are provided with movable sliding grooves, and the inner walls of the movable sliding grooves are slidably connected with movable sliding blocks distributed in a linear array mode. Through the bunch adjusting mechanism, the branching cable can be conveniently clamped, cables of different sizes can be stably clamped, the application range is wide, the branching cable is independently locked, the situation of batch movement and dislocation during adjustment is avoided, the operation is convenient, and the practicability is high. And the wiring efficiency is greatly improved.

The invention specifically discloses a satellite navigation interference source positioning method based on a distributed unmanned aerial vehicle, and relates to the technical field of satellite navigation interference resistance. According to the method, firstly, an unmanned aerial vehicle cluster carrying uniform linear array antennas is deployed in a target area, and after parameters of a system are initialized, all unmanned aerial vehicles synchronously collect interference signals and estimate the direction of arrival (DOA) of an interference source; then performing dual-domain interference suppression based on DOA information, calculating an interference source coordinate in combination with an unmanned aerial vehicle coordinate, and performing noise reduction; planning a path by using a path planning model of a multi-modal Markov decision process and a reinforcement learning algorithm to realize tracking of a dynamic interference source; and finally, judging and outputting a final coordinate through Euclidean distance convergence. The method solves the problems of limited coverage of a traditional fixed monitoring station and insufficient positioning precision of a single unmanned aerial vehicle, can efficiently position dynamic and multiple interference sources, improves the positioning precision and the anti-interference capability, reduces the deployment cost, and is suitable for satellite navigation interference source positioning in a complex environment.

The invention discloses a multi-mode control method for voice interaction and gesture recognition of an atmosphere lamp, and belongs to the field of intelligent control. The method comprises the following steps: S1, constructing a multi-mode sensing module, and arranging a bidirectional linear array microphone, a dual-lens infrared depth camera and a space calibration laser transmitter; s2, extracting voice features by adopting an extended spectrogram domain attention network, and generating a first semantic vector; s3, dynamic attitude features are extracted through the time-airspace sparse convolutional network; s4, performing modal alignment and cooperative coding on the two semantic vectors based on a bidirectional gating fusion mechanism, generating a joint interaction instruction vector, and solving modal conflicts by a time sequence synchronization and confidence regulation strategy; s5, inputting the vector into a multi-task intention classifier, analyzing a user intention and outputting a unique atmosphere lamp control code; and S6, transmitting the control code to a driving unit to realize light control. The beneficial effects are that voice and gesture fusion control is realized, and atmosphere lamp interaction intelligence and response precision are improved.

The invention relates to the field of concrete beam damage detection, in particular to an ultrasonic imaging method for concrete beam damage detection, which comprises the following steps: arranging a linear array comprising a plurality of ultrasonic probes on a single-side contactable surface of a to-be-detected concrete beam; preparing a multi-channel ultrasonic transmitting and receiving instrument, and connecting the multi-channel ultrasonic transmitting and receiving instrument with the sensor array and the control computer; a multi-channel ultrasonic device is used to work in a full-matrix capture mode, in the full-matrix capture mode, each probe is sequentially excited to emit ultrasonic pulses, and time domain signals received by all the probes of the array are synchronously recorded to obtain an original full-matrix data set. According to the method, strong scattering noise generated by the concrete aggregate can be inhibited through the deep convolutional neural network so as to improve the signal-to-noise ratio of the image, the sound velocity field conforming to the non-uniform characteristic of the concrete can be constructed through local sound velocity inversion and iteration based on the strong reflection points, the problems of imaging artifacts and form distortion are avoided, and the accuracy of the imaging process is improved. And the concrete damage detection precision is ensured.

The application discloses a kind of based on ultra-wideband radar's on the scraper conveyor up and down slide monitoring device and method, belong to coal mine safety state monitoring technical field.The monitoring device includes the electric rotating platform installed on the head of scraper conveyor, linear array antenna pointing to the end face end coal wall is installed on the electric rotating platform, linear array antenna connects ultra-wideband imaging radar signal module;Industrial computer sends instruction to control the receiving and sending of ultra-wideband imaging radar signal module, the rotating movement of electric rotating platform respectively;Linear array antenna installed on the head of scraper conveyor is driven by electric rotating platform, periodically collects the radar image of end face end, then by registration with the image periodically collected before, to deduce the distance that the head of scraper conveyor up and down slide;It has strong robustness to the harsh environmental conditions of end face end coal dust water vapor, and monitoring data is accurate.

The utility model relates to the technical field of cable wall, especially a kind of anticorrosive waste wooden block cable wall, including external frame, it is characterized by: the external frame inner wall is equipped with multiple longitudinal cables, the number of longitudinal cable is 10~15 and is arranged in the mode of equidistant linear array, the interval of the middle of the adjacent two longitudinal cables is 20~40cm, longitudinal cable is equipped with multiple waste wooden blocks associated with longitudinal cable, the top of external frame is equipped with solar power supply module, the anticorrosive waste wooden block cable wall structure in the application is supported with frame and cable, fastener fixes wooden block, guarantee strength and bearing capacity;Environment protection replaces new wood with anticorrosive waste wooden block, reduces consumption, cooperates and forms greening system with planting groove;Functionally, wooden block integrates storage grid and flower groove, anticorrosive treatment can resist damp and insect damage, stable and durable;Energy solar power supply module is used for power supply to realize night lighting for light belt;Anticorrosive wooden block reduces maintenance, and comprehensive performance is significantly improved.

The utility model discloses a diaphragm punching equipment, including processing platform, driving subassembly, punching subassembly, limit subassembly and collecting barrel, wherein the driving subassembly is divided into two groups, two groups of driving subassembly are respectively arranged on the processing platform, driving subassembly includes driving part, movable support and connecting seat, driving part is arranged on the processing platform, the movable support is connected with the connecting seat, and the limiting subassembly is connected with the connecting seat. The movable support is arranged at the output end of the driving component, the connecting base is arranged on the movable support, the punching assembly is arranged on the connecting base and comprises a top plate, multiple sets of punching components and a material pressing mechanism, the top plate is arranged on the connecting base, the multiple sets of punching components are arranged on the top plate in a linear array mode, and the material pressing mechanism is arranged on the top plate. The limiting assembly is arranged on the machining platform. Therefore, the diaphragm is limited, pressed and fixed in the punching process and is separated from the surface of the machining table after punching is completed, the diaphragm is convenient to replace, materials are ejected synchronously to prevent crushed materials from blocking material holes, cleaning is conducted in time, and the working efficiency is further improved.

The utility model relates to the technical field of wall body pouring, in particular to a template for wall body pouring, which comprises a pouring template and a connecting component, a shaping template is arranged on the outer side of the pouring template; the connecting assembly comprises two first connecting blocks, two second connecting blocks, a plurality of first bolts and nuts, wherein the two first connecting blocks and the two second connecting blocks are arranged on the pouring formwork, the first bolts are distributed in a linear array mode and arranged on the first connecting blocks in a penetrating mode, and the nuts are connected to the first bolts in a threaded mode and abut against the first connecting blocks. The second connecting block is in a T shape, an inserting groove matched with the second connecting block is formed in the first connecting block, and the first bolt penetrates through the second connecting block and is in threaded connection with the second connecting block. According to the utility model, not only can the defect that the pouring template has a larger gap during pouring be avoided, but also the mounting and dismounting operation steps of the shaping template can be optimized, and the practicability of the template is improved.

The invention relates to a photonic radar system (100) and a method for operating a photonic radar system (100). The invention further relates to a central unit (10) and a method for operating the central unit (10). The invention relates to reducing the computational effort required for Doppler processing in sparsely distributed antenna apertures by incorporating uniform linear array (ULA) structures (70).

The utility model relates to the technical field of atomizer PCBs, in particular to a PCB for an atomizer, which comprises a PCB body, the PCB body is provided with a width-adjustable connecting assembly used for fixedly connecting the PCB body into an atomizer shell, the connecting assembly comprises a connecting plate and a U-shaped plate, the bottom surface of the connecting plate is fixedly mounted on the top surface of the PCB body, and the U-shaped plate is fixedly mounted on the bottom surface of the PCB body. Two strip-shaped sliding grooves are formed in the top face of the connecting plate and are symmetrical to each other, the two sides of the U-shaped plate are slidably connected into the two strip-shaped sliding grooves respectively, a threaded groove is formed in the top face of the connecting plate, a plurality of through holes are formed in the top face of the U-shaped plate and are in a linear array, the threaded groove right faces the through holes, a screw is inserted into one through hole, and the screw is connected to the threaded groove in a threaded mode. During installation, the U-shaped plate is firstly slid to move on the connecting plate to a distance matched with a clamping groove of an atomizer shell, and after a screw is locked, the U-shaped plate is integrally embedded into the shell and is arranged on the bearing plate, so that cavities of different structures are compatible, and meanwhile, the stability of the PCB is ensured.

The utility model provides a spring heat treatment device which comprises a spring body and further comprises a shell, a heating cover is arranged in the shell, and a heating cavity is formed in the heating cover. The upper cover is arranged on the shell body; the suspension bracket is connected to the heating cover in a clamped mode, the suspension bracket comprises an outer frame and hanging rods arranged in the outer frame in a linear array mode, the spring bodies are arranged on the hanging rods, and the hanging rods are located in the heating cavity; and a control unit. According to the spring heat treatment device provided by the utility model, the spring bodies are hung on the hanging rod one by one, the spring bodies are stably hung in the heating cavity through the support of the frame so as to avoid the phenomenon of spring superposition, and meanwhile, in the heating process, the control unit controls the hanging rod to rotate in the heating cavity so as to adjust the angle; the heating effect on the spring body is improved, and the phenomenon of local temperature difference is avoided.

The utility model discloses an alternating current electromagnetic field array detection probe based on a time division multiplexing technology, and belongs to the field of nondestructive testing. The array detection probe comprises a shell, a magnetic core fixedly mounted in the shell, an exciting coil spirally wound on the magnetic core, a sensor array module fixedly mounted in the shell and located at the lower part of the magnetic core, and a multiplexing module fixedly mounted in the shell and electrically connected with the exciting coil and the sensor array module, a detection port is formed in the shell, the magnetic cores are arranged in a U shape, the opening ends of the magnetic cores face the detection port of the shell, the multiple magnetic cores are arranged in the shell and are distributed in a linear array mode in the shell, and the axial direction of the sensor array module is parallel to the axial direction of the array distribution track of the multiple magnetic cores. According to the array detection probe, a magnetic field change signal is captured by the sensor array module and is converted into a clear and stable electric signal to be output, so that a more accurate data basis is provided for subsequent defect analysis.

The invention relates to a method for manufacturing a reinforcement structure for a wind turbine blade (10), the method comprising the steps of: 1) arranging a plurality of strips (63) of fibrous reinforcement material into adjacent stacks (65a, b, c) of strips forming a layered structure (61) having a plurality of fibrous reinforcement layers (67) wherein adjacent ones of the plurality of fibrous reinforcement layers are separated by an intermediate layer (66), according to the invention, at least one separator comb (70) is provided for the resin (1, 2), the at least one separator comb comprising: a base region (71) and a tooth region (73) comprising a plurality of teeth (74) extending from the base region (71), where the plurality of teeth (74) are arranged with a linear array of gaps (79) between adjacent teeth (74), the gaps (79) being configured for allowing the resin to flow from one side of the separator comb (70) to the other side of the separator comb (70), and wherein the plurality of teeth (74) are configured for penetrating the intermediate layer (66), 3) inserting the at least one separating comb (70) between two adjacent stacks (65a, b, c) of strips and penetrating the plurality of intermediate layers (66) with the plurality of teeth (74) such that a plurality of strips (63) of the adjacent stacks (65a, b, c) of strips are separated by the at least one separating comb (70), 4) after inserting the at least one separating comb (70) between the adjacent stacks (65a, b, c) of strips, the method includes (1) optionally moving the layered structure (61) into a desired position, such as into a wind turbine blade shell mold, (5) optionally removing the at least one divider comb (70), and (6) infusing the layered structure with a resin to form a reinforcing structure (78).

The utility model discloses a plug-in type multilayer circuit board. A support rod is fixedly mounted in the frame; the fixing frames are arranged on the supporting rod in a linear array and are in running fit with the supporting rod, and limiting grooves are symmetrically formed in the top ends of the fixing frames; and the ball blocks are symmetrically arranged at the bottom end of the fixing frame and are in sliding fit. According to the plug-in type multilayer circuit board provided by the utility model, the fixing frame with the damaged circuit board is separated from the plurality of fixing frames and moved out of the frame by shifting the fixing frame with the damaged circuit board to rotate, so that a worker can quickly take down the circuit board installed in the fixing frame, and the work efficiency is improved. When the circuit board on any layer in the multiple layers of fixing frames is damaged, the fixing frame provided with the circuit board is driven to rotate and rotate out of the frame, so that a worker can disassemble and maintain the damaged circuit board, and not only can the independently damaged circuit board be disassembled, but also the damaged circuit board can be repaired. And the maintenance efficiency and the installation efficiency of the multilayer circuit board can be improved.

The utility model discloses a knitted fabric, relates to textile field, its technical scheme is characterized in that: it includes outer layer, inner layer and intermediate layer between outer layer and inner layer, intermediate layer includes first yarn and second yarn, intermediate layer is divided into longitudinal stretching part and transverse stretching part, transverse stretching part along the longitudinal linear array, and transverse stretching part along the longitudinal linear array. Between the adjacent transverse stretching parts, the longitudinal stretching parts are linearly arrayed in the transverse direction, and holes are formed between the adjacent longitudinal stretching parts. According to the knitted fabric, a cavity structure is formed between the outer layer and the inner layer on the middle layer through the pores, an air layer which flows slowly is formed, heat exchange on the two sides of the knitted fabric is reduced, the heat retention property of the knitted fabric is improved, the pores are formed through a woven structure of the first yarn and the second yarn, the structural stability of the middle layer is guaranteed, and the heat retention property of the knitted fabric is improved. The cotton fiber bundles have good heat retention property, and the heat retention property of the knitted fabric is further improved by matching the cotton fiber bundles with the double rib stitches.

The utility model belongs to the technical field of citrus cultivation, and particularly relates to a citrus polyploidy efficient induction device which comprises a machine body. A sealing door is rotationally arranged on the side wall of the machine body; the sealing doors are symmetrically arranged on the side wall of the machine body; an induction processor is mounted on the side wall of the machine body; the output end of the induction processor is connected with a built-in discharger; the built-in discharger is arranged on the inner side wall of the machine body; a spraying opening is formed in the side wall of the built-in discharger; the spraying openings are formed in the side wall of the built-in discharger in a linear array mode. A storage rack is fixedly connected to the interior of the machine body; the storage racks are symmetrically arranged in the machine body; an embedding groove is formed in the side wall of the storage rack; by means of the structure, tissue culture is not needed by adopting a living body induction technology, multi-time growth can be achieved from seed germination to regeneration, compared with a traditional in-vitro induction method, the method is more convenient, and multi-time cultivation of citrus can be achieved in a sealed state.

The utility model discloses a capacitance compensation cabinet capable of preventing heat surge, and particularly relates to a capacitance compensation cabinet which comprises a box body, the top of the box body is symmetrically and fixedly provided with air outlet groove pieces distributed on adjacent side edges, and flow blocking baffles are fixedly welded in the air outlet groove pieces; a preset distance is kept between the flow blocking baffle and the air outlet groove piece so that an air flow channel can be formed. The side wall of the flow blocking baffle is fixedly arranged on fin plates which make contact with the top of the box body and are distributed in a linear array mode. C-shaped sheet metal parts are fixedly arranged among the flow blocking baffle, the box body and the side walls of the two opposite sides of the air outlet groove part, and the multiple fin plate parts sequentially penetrate through the C-shaped sheet metal parts. Through the design of the sheet metal part, the local temperature change generated by heat absorption of the sheet metal part in the box body is optimized, so that the flowing of enthusiasm airflow in the box body is accelerated and guided, and the heat dissipation speed in the box body is ensured.

This utility model belongs to the field of woodworking drill technology, and particularly relates to a woodworking shank drill, comprising: a drill bit, having a cutting edge and a chip removal groove, with three cutting edges and three chip removal grooves; a first drill rod, connected to the bottom of the drill bit, having an axially arranged connecting groove and a radially arranged mounting hole on the first drill rod, and an axially arranged limiting groove on the inner wall of the connecting groove; a second drill rod, having a limiting protrusion and several connecting holes arranged in a linear array along the axial direction, the second drill rod and the connecting groove being inserted into each other, and the limiting protrusion and the limiting groove being adapted to each other; and a fastener, which is installed at the mounting hole and connected to one of the connecting holes; the beneficial effect of this utility model is that by using the fastener to connect and fix with the connecting holes at different positions on the second drill rod, the length of the drill shank of the woodworking shank drill can be adjusted, allowing the woodworking shank drill to adapt to drilling holes of different depths.

The utility model discloses a public bus shelter, and particularly relates to the technical field of public bus shelters, a plurality of fixing grooves arranged in a linear array are formed in a vertical plate, fixing blocks are movably arranged in the fixing grooves, rotating grooves are formed in the fixing blocks, supporting plates are arranged on the fixing blocks, rotating shafts are arranged in the rotating grooves, seats are arranged on the rotating shafts, and the supporting plates are arranged on the rotating shafts. The seat is provided with a plurality of non-slip blocks which are arranged in a linear array, and the seat is provided with a soft cushion. According to the public bus shelter, the fixing blocks are fixed through the fixing grooves formed in the vertical plates, the seats are detached through the fixing blocks in the fixing grooves, the seats are rotated through the rotating grooves formed in the fixing blocks, and the seats are rotated through the rotating shafts in the rotating grooves; by means of the multiple anti-sliding blocks which are arranged on the seat in the linear array mode, the passenger cannot slide downwards when sitting on the seat, and the comfort degree of the passenger on the seat of the bus shelter is achieved through the soft cushion on the seat.

The utility model discloses an interlayer insulation structure of a multilayer circuit board, which comprises an insulation substrate, two sides of the insulation substrate are respectively provided with a conductive layer and an insulation layer, the conductive layer is arranged between the insulation substrate and the insulation layer, a heat conduction plate is arranged in the insulation substrate, the heat conduction plate is symmetrically provided with extension plates extending out of two ends of the insulation substrate, and the extension plates are arranged on the insulation substrate. Cooling fins are arranged on the extending plate in a linear array mode. According to the interlayer insulation structure of the multilayer circuit board provided by the utility model, the heat-conducting plate is arranged between the insulation substrates, when the interior of the conductive layer works to generate heat, the heat-conducting plate can conduct the heat, absorbed by the conductive layer, on the insulation substrates to the extension plate, and the heat on the heat-conducting plate is dissipated through the extension plate and the heat dissipation fins; therefore, the heat dissipation effect of the insulating substrate between the two conductive layers is improved, the problem that the conductive layers are damaged due to heat accumulation on the insulating substrate is avoided, and the working stability of the conductive layers is improved.

The utility model discloses a gantry type dust suppressant spraying device, and particularly relates to the technical field of gantry type dust suppressant spraying, a water outlet roller is provided with a plurality of placing grooves which are arranged in a linear array, water outlet blocks are arranged in the placing grooves, water outlet grooves are formed in the water outlet blocks, and first filter plates are arranged in the water outlet grooves; and a plurality of transverse notches which are arranged in a circumferential array are formed in the first filter plate. According to the gantry type dust suppressant spraying device, dust suppressants are sprayed on a train stopping in a coal mine through movement of the movable frame, the water outlet roller is clamped and fixed through the clamping part formed by the two extension rods, the water outlet block is installed through the multiple containing grooves formed in the water outlet roller, and the dust suppressants are sprayed on the train. The dust suppressant is discharged through the water outlet groove in the water outlet block, and the size of an outlet is increased when the dust suppressant is discharged through the first filter plate in the water outlet groove and a plurality of transverse notches formed in the first filter plate, so that the water pressure is increased.

The application provides a FDA-MIMO radar gridless target parameter estimation method based on a single base plane array, relates to the technical field of array signal processing, constructs a single base plane array FDA-MIMO radar system, and the transmitting end and the receiving end of the radar system are composed of a uniform plane array; a receiving signal model is established based on the radar system, the model is vectorized, a selection matrix is introduced to construct an angle-distance decoupling receiving signal model; the covariance matrix of the receiving signal model is calculated; a low-rank matrix reconstruction optimization problem suitable for the model is established according to the covariance matching criterion; the optimization problem is solved by the idea of alternating projection by using the properties of the covariance matrix; the information of the angle theta and the distance r is estimated by the multiple signal classification method according to the covariance matrix; the problems that the FDA-MIMO radar angle-distance decoupling model in the prior art is only suitable for a linear array, and the target parameter estimation method has low estimation accuracy and high calculation complexity can be solved.

The utility model provides a reinforced buried pipeline assembly, which relates to the technical field of buried pipelines and comprises an outer pipe, a reinforced supporting mechanism is arranged in the outer pipe and comprises arc-shaped supporting strips, and the outer side surfaces of the arc-shaped supporting strips are distributed on the inner wall of the outer pipe in an annular array and are fixedly connected with the inner wall of the outer pipe. Arc-shaped reinforcing blocks distributed in a linear array are arranged between every two adjacent arc-shaped supporting strips, inner pipes are fixedly connected to the surfaces of the inner sides of the multiple arc-shaped supporting blocks, a connection reinforcing mechanism is arranged at one end of each outer pipe, and each connection reinforcing mechanism comprises a first annular sealing connecting block. The effects that the inner pipe is supported and protected through cooperation of the arc-shaped supporting strips and the arc-shaped reinforcing blocks, the deformation degree of the outer pipe due to external extrusion is relieved, the connection strength between the pipelines is improved through insertion cooperation of the locking holes and the locking blocks, operation is convenient and fast, later-period disassembly and maintenance are convenient, and the construction efficiency is improved are achieved.

This utility model discloses a thin-film silk-coated enameling machine, belonging to the field of enameling machines. It includes an enameling machine body, with a cleanroom on the upper surface of the body. A dust removal mechanism is provided on the upper surface of the cleanroom, including a baffle. A sliding rod is fixedly connected to the front surface of the baffle, penetrating the cleanroom and slidably connected to it. A cylinder is fixedly connected to the upper surface of the cleanroom, with its output shaft fixedly connected to the baffle. Rectangular grooves are linearly arrayed on the front surface of the baffle. Through the baffle, sliding rod, filter screen, movable rod, and cylinder, after prolonged use of the cleanroom, the cylinder drives the baffle to move backward, causing the filter screen to move backward and exit the cleanroom. Simultaneously, a rotating rod causes the filter screen to vibrate up and down during movement, facilitating cleaning and improving cleaning efficiency.

The utility model discloses a manual bread cutting machine, which relates to the technical field of manual bread making equipment and comprises a mounting base and a mounting handle rotatably connected in the mounting base, and the mounting handle is rotatably connected with two mutually symmetrical transmission plates; according to the bread cutting device, the multiple cutting knife frames are distributed in the length direction of the mounting frame in a linear array mode, bread can be cut into multiple parts through one-time operation, and compared with a traditional mode that the bread is broken through fingers or a common bread cutting tool is used, the cutting efficiency is improved, the batch cutting requirement is met, and manpower and time cost is reduced. And on the other hand, the cutting knife frames distributed in an array mode guarantee the consistency of the cutting effect, the cut bread is uniform in shape and size, and follow-up dish making and presenting are facilitated. The design solves the problem that a common bread cutting tool is difficult to ensure the consistency and stability of the cutting effect, and avoids the influence on the dish quality due to different shapes and sizes of bread.

This utility model relates to the field of plastic crushing and processing, and in particular to a high-efficiency plastic crushing device for plastic product manufacturing. It includes a feeding trough and a housing. The housing is fixedly connected to the lower end of the feeding trough. Two first mounting plates are fixedly connected to one outer wall of the feeding trough. A first rotating motor is fixedly connected to one outer wall of each first mounting plate. The output shaft of the first rotating motor is fixedly connected to the rotation center of a second mounting rod. The second mounting rod is fixedly connected to a hollow tube. Multiple second mounting frames arranged in a linear array are provided on the lower outer wall of the hollow tube. A second fan is fixedly connected to the upper end of each second mounting frame. A second dustproof net is provided on the upper outer wall of the hollow tube. This device utilizes the second fan and brush, and the first fan and scraper, to achieve efficient feeding, dust prevention, and anti-clogging, as well as efficient screening and protection. It solves the problems of existing devices lacking a dust prevention and anti-clogging structure at the feeding end and a self-cleaning structure for screening protection.

The utility model relates to the technical field of insulation board, specifically disclose a ground insulation board, include: insulation board one, the insulation board one side is equipped with insulation board two, the top of insulation board one and insulation board two all is provided with moistureproof membrane, the bottom of insulation board one and insulation board two is linear array and is opened with a plurality of water guide groove, the both sides junction of insulation board one and insulation board two respectively symmetry is provided with a set of fixed mechanism, and a set of fixed mechanism is two, the utility model need not bolt fastener, both guarantee the stability of installation, and through the limiting structure of protruding block and baffle, realize quick dismounting function, promote the operation convenience of insulation board under the maintenance, replacement scene, lighten the artificial burden simultaneously.

The application discloses a DOA estimation method and system based on a generative adversarial network. The method first acquires time-domain coherent signals received by a uniform linear array, performs preprocessing, and generates a coherent signal covariance matrix and a corresponding incoherent covariance matrix. Secondly, a covariance matrix reconstruction model is constructed, based on the coherent signal covariance matrix and the corresponding incoherent covariance matrix, a generator of the generative adversarial network is used to extract deep features from the preprocessed coherent signal covariance matrix, and the coherent signal covariance matrix is reconstructed. Then, the MUSIC algorithm is used to estimate and verify the DOA based on the reconstructed covariance matrix. The application improves the precision of coherent DOA estimation while not losing the utilization rate of the array aperture. The application has less parameter quantity, lower calculation complexity, faster covariance matrix reconstruction speed and stronger covariance matrix reconstruction capacity.