40results about How to "Precise layout" patented technology

The invention discloses an injection molding temperature control method for rapid injection molding of an injection molded part, and relates to the field of injection molding temperature control, and the injection molding temperature control method comprises the following steps: performing main body division on a mold by scanning three-dimensional space data of the mold and combining geometric characteristics, and performing structural stability evaluation and gradient calibration on a main body division result; analyzing the surface curvature of a main body division area based on a main body division result, and setting a cooling channel local loop in combination with the heat distribution condition of an actual thermoplastic process; performing loop integration on the cooling channels of all the main body division areas, and setting the flow velocity of cooling liquid in the cooling channels based on the stress change of the injection molding part; based on the finally determined communication distribution of the cooling channels and the flow speed of the cooling liquid, the mold and the cooling channels are produced through 3D printing; according to the method, the injection molding period is remarkably shortened, the production efficiency and the quality and stability of injection molded parts are improved, and the method is suitable for rapid molding requirements of high-precision complex injection molded parts.

The invention discloses a sand source resistance and control dynamic configuration method for a hole-to-wind sand area, and relates to the technical field of wind and sand protection, and the method comprises the following steps: collecting meteorological data, wind and sand data and historical sand source change data of the hole-to-wind sand area, and obtaining geographic information and vegetation coverage conditions of the sand source area through a remote sensing technology and ground monitoring equipment; by monitoring key parameters such as wind speed, wind direction and dust concentration in real time and combining high-resolution ground image data acquired by an unmanned aerial vehicle and a satellite remote sensing technology, real-time sensing and accurate analysis of sand source changes are realized, the efficiency and accuracy of data collection are improved, and the detection accuracy is improved. In addition, the prevention and control measures can be dynamically and accurately arranged according to the specific sand source, and by dynamically adjusting the arrangement and density of prevention and control facilities and optimizing the type and area of vegetation coverage, sand storm invasion can be more effectively prevented, the occurrence frequency and intensity of sand storm are reduced, and the efficiency and accuracy of sand source prevention and control are remarkably improved.

The invention relates to an unmanned aerial vehicle wing deformation monitoring sensor layout method based on modal analysis, and the method comprises the steps: determining the modal parameter detection of a wing under different working conditions through modal analysis, and employing a modal component sum index to recognize a key degree of freedom so as to optimize the position of a sensor; the method is mainly used for verifying the deformation of the wing part in the overall design process of the unmanned aerial vehicle in a laboratory. According to the method, the modal shape and the inherent frequency are obtained through finite element analysis, the modal amplitude and the participation factor of each degree of freedom are calculated, the optimal arrangement position of the sensor is further optimized through an iterative algorithm, and the arranged fiber bragg grating sensor can accurately monitor the deformation information of the wing. The data processing unit collects data and evaluates wing performance by applying a data analysis algorithm. The method improves the accuracy and comprehensiveness of deformation measurement, and provides guarantee for the flight safety and efficiency of the unmanned aerial vehicle.

The invention provides an electrolytic bath configuration processing method and device based on fluctuating wind and light coupling power generation. On the basis of the method, historical wind and light data of a target area are obtained, and a wind and light output curve with good representativeness is constructed according to the historical wind and light data; according to the wind-light output curve, the gradient step length is determined and utilized, the wind-light output curve is processed, and a base load component and a fluctuation load component are split; based on a preset matching rule and a gradient step size, optimization solution is carried out according to the base load component, the fluctuation load component and the decision influence data, and a target configuration scheme meeting requirements is determined; wherein the preset matching rule comprises that the base load component is preferentially matched with the first standard square electrolytic cell, and the fluctuation load component is preferentially matched with the second standard square electrolytic cell; and according to the target configuration scheme, arranging a target electrolytic cell group for the target wind-solar coupled power station. Therefore, the layout of the electrolytic cell group of the target wind-light coupling power station can be accurately and reasonably realized.

The invention relates to a 3D printing method capable of accurately arranging various powder materials and a printing device thereof. The 3D printing method comprises the following steps that at least two kinds of powder are placed in powder material bins with the corresponding number; each material in the same layer is arranged and formed after the former material is arranged and formed; the material arranging and forming method comprises the following steps that a powder distributing plate is moved to a powder material bin, the top face of the powder distributing plate is covered with an area where powder needs to be arranged through electrons, materials are adsorbed to the corresponding position of the bottom face of the powder distributing plate through charge polarization, and the powder distributing plate is moved to the position above a forming bin; electrons on the top surface of the powder distribution plate are removed to enable the powder to fall into a forming area, and the powder distribution plate is moved away for forming; thus, part forming is achieved by printing layer by layer in areas. Powder is adsorbed in a designated area through charge polarization, when the powder distribution plate moves to the corresponding position of the forming bin, adsorption of the powder distribution plate to the powder is eliminated, and multiple materials are accurately arranged on the same layer.

The invention provides a gas-heat combined safety monitoring method and device for an energy storage battery cabinet with an air cooling system. The method comprises the following steps: constructing a finite element model of the energy storage battery cabinet with the air cooling system; establishing a temperature field control model, an airflow field control model and an airflow field heat transfer model; boundary setting is carried out on the built energy storage battery cabinet finite element model with the air cooling system, and grids on fluid and solid interfaces are in butt joint to form a common-node grid structure; according to the temperature field control model, the airflow field control model and the airflow field heat transfer model, airflow and temperature field joint simulation is carried out on the energy storage battery cabinet model with the air cooling system, a hot spot with the maximum temperature and a position where gas circulation is most concentrated are obtained, and sensors are arranged at the corresponding positions. The system has the advantages of being high in safety performance, low in cost and the like, comprehensive and real-time monitoring of the energy storage battery pack can be achieved, the thermal safety performance of the energy storage battery pack is effectively improved, and the service life of the energy storage battery pack is prolonged.

The invention provides a method and a system for testing thermal radiation of jet fire of a high-pressure large-diameter natural gas pipeline, and belongs to the technical field of fuel gas transportation safe.According to the method for testing the thermal radiation of the jet fire of the high-pressure large-diameter natural gas pipeline, factors such as the size, leakage points, wind speed and wind direction of the natural gas pipeline are combined; the first position is obtained by obtaining a rough flame form, the second position is obtained by further considering the inclination condition of the flame on this basis, and finally, the uncovered third position is further screened by analyzing historical analogue simulation data, so that efficient and accurate sensor arrangement is realized, the number of arranged sensors can be reduced, and the accuracy of sensor arrangement is improved. And the arrangement precision is improved, it is ensured that heat radiation generated by flames can be comprehensively monitored, and therefore safety and emergency response efficiency are improved.

The invention provides a missed detection insect compensation method and device for an insect radar and a medium, and belongs to the technical field of insect radars. The method comprises the following steps: step 1, constructing a migrated insect target characteristic model based on preset migrated flight characteristic data of actual migrated flight of insects; 2, constructing an insect detection quantity loss model based on the migrated insect target characteristic model, a preset pulse cancellation technology and a preset constant false alarm detection algorithm; 3, establishing a cost function corresponding to the insect flight speed estimation value according to the migrated insect target characteristic model and the insect detection quantity loss model, and performing missed detection insect quantity compensation based on the cost function; and 4, performing compensation simulation verification on the insect detection quantity loss model based on a preset simulation parameter and a cost function, and deploying the corresponding cost function and the insect detection quantity loss model to a user terminal after a corresponding quantity compensation error is smaller than a preset threshold value so as to perform missed detection insect compensation operation.

The invention relates to an airspace engine leak detection system, and belongs to the technical field of gas tightness leak detection. The helium tank extends into the leak detection box through a gas transmission pipeline and is communicated with the inner cavity of the engine; the helium filling test bench is arranged on the outer side of the leak detection box and is located on the gas transmission pipeline; the valve V8 is arranged on the purging pipeline; one end of each of the first detection pipeline, the second detection pipeline, the third detection pipeline, the fourth detection pipeline and the fifth detection pipeline extends into the leakage detection box; the other ends of the first detection pipeline, the second detection pipeline, the third detection pipeline, the fourth detection pipeline and the fifth detection pipeline are gathered and then communicated with a total leakage detection pipeline; the total leak detection pipeline is respectively communicated with the vacuum pump and the helium mass spectrometer leak detector; valves V3-V7 are respectively arranged on the first detection pipeline, the second detection pipeline, the third detection pipeline, the fourth detection pipeline and the fifth detection pipeline; the detection efficiency of the leakage rate of the liquid engine is improved, and human factors are controlled.

The invention discloses a high-precision prefabricated part steel bar optimization method, and relates to the technical field of prefabricated part optimization, and the method comprises the steps: S1, obtaining the actual information of a prefabricated part; s2, design deepening optimization is carried out; s3, reinforcing steel bar production and processing optimization; s4, material selection and optimization; s5, optimizing the arrangement mode; s6, optimizing a construction process; s7, quality control optimization; s8, waste utilization optimization; s9, strengthening protection measures; the method has the beneficial effects that through multiple aspects of material optimization selection, design optimization deepening, machining digital control, construction process optimization, waste utilization and management and the like, by implementing the optimization methods, accurate arrangement and efficient utilization of the reinforcing steel bars can be achieved, the quality and performance of prefabricated parts are improved, and the construction cost is reduced. Effective utilization and management of the waste materials are also an important way for realizing green and environment-friendly production of the prefabricated parts, and meanwhile, the construction efficiency can be improved, the cost can be reduced, and a contribution is made to sustainable development of the building industry.

According to the integrated pipeline supply platform and the semiconductor equipment, the integrated pipeline supply platform is characterized in that an auxiliary pipeline and a process gas pipeline are integrally arranged on the same platform main body and are arranged at intervals in the vertical direction, so that the auxiliary pipeline and the process gas pipeline can be orderly integrated on the platform main body; physical interference among the pipelines is reduced, and ordering and compact layout of the integrated pipeline supply platform can be achieved; in addition, a factory affair butt joint window in the butt joint structure establishes a connecting channel for the auxiliary pipeline and the process gas pipeline with the outside, and butt joint of the integrated pipeline supply platform and factory affair facilities is simplified; and the chamber butt joint window provides a pipeline connection interface between the integrated pipeline supply platform and the plurality of process chambers, so that rapid and accurate butt joint between the platform and the plurality of process chambers is realized, the installation efficiency of pipelines in the semiconductor equipment and the reliability of pipeline connection are improved, and the integration level and the connection efficiency of the semiconductor equipment are enhanced.

The invention belongs to the technical field of aerospace equipment assembly, and discloses a composite material wing box section intelligent flexible adjustable assembly tool which comprises a tool frame. The positioning assembly is installed in the tool frame and comprises a lower wall plate positioning device, an upper beam positioning device, a lower beam positioning device, a left end rib positioning device, a right end rib positioning device and an upper wall plate positioning device which are used for clamping a lower wall plate, an upper beam plate, a lower beam plate, a left end rib plate, a right end rib plate and a first upper wall plate of the wing box structure respectively; the mounting assembly comprises a six-degree-of-freedom mechanical arm and a storage rack, a mounting part is arranged at the tail end of the six-degree-of-freedom mechanical arm, a second upper wall plate is placed on the storage rack, and the six-degree-of-freedom mechanical arm is used for mounting the second upper wall plate on the wing box structure through the mounting part; and the adjusting part is used for leveling the tool frame. According to the method, the assembly precision, efficiency and universality can be greatly improved, the structural damage risk is reduced, and reliable technical support is provided for assembly of composite material complex components.

This invention discloses a method for locating natural gas leak sources in salt cavern gas storage well sites, comprising the following steps: 1) Deployment of point-type laser methane detectors within key monitoring areas. 2) Monitoring of unknown areas outside the key monitoring areas. 3) Leak source inversion and location: When the concentration value of leaked natural gas in a salt cavern gas storage well site, as monitored by the point-type laser methane detector, reaches a predetermined threshold, the leak source needs to be located promptly. The specific process is as follows: Step 1) Establishing a leak diffusion model; Step 2) Establishing an objective function F; Step 3) Locating the leak point. The leak source location method of this invention has high accuracy and cost-effectiveness, can efficiently obtain concentration interpolation with smaller errors, and solves the problem of insufficient full-coverage monitoring of salt cavern gas storage well sites.

The invention discloses a shallow lake multilayer environment DNA and surface sediment combined sampling method. The method comprises the following steps: S1, acquiring basic geographic information and water physical and chemical parameters of a lake; s2, on the basis of the environment data obtained in the S1, lake layout candidate sampling points are divided; s3, carrying out cleaning treatment on the sampling device; s4, respectively collecting water samples of different water layers of the lake; s5, collecting a lake surface sediment sample, and sealing and storing the lake surface sediment sample and the water sample collected in S4 in different chambers; s6, marking the sealed water sample and sediment sample; and S7, synchronously recording environment parameters and operation logs of the whole sampling process. Compared with the prior art, the shallow lake multilayer environment DNA and surface sediment combined sampling device and the sampling method thereof have the advantages that high-quality combined acquisition of a water body vertical section and a sediment interface eDNA sample is realized, and a reliable sample basis is provided for accurate monitoring of a lake ecosystem.

The embodiment of the present application discloses a train surface crack detection system, in which a left-right moving mechanism is arranged on the base body in the base. The first telescopic rod is foldably arranged on the base body. The second telescopic rod is foldably arranged on the left-right moving mechanism. In the sensor probe arm mechanism, a plurality of support rod assemblies are connected at the X-shaped connection of the scissor structure by a first rotating connection mechanism. A plurality of support rod assemblies are connected at the V-shaped connection of the scissor structure by a second rotating connection mechanism. The first telescopic rod and the second telescopic rod are respectively connected to an X-shaped connection. The acoustic emission probe servo device is movably arranged on the support rod assembly. The train surface crack detection system of the embodiment of the present application can quickly and accurately arrange the acoustic emission sensor, and can realize the precise positioning of the crack, so as to solve the problems that the conventional magnetic suction probe support does not work, the sensor cannot be well fitted on the surface of the vehicle body, and there are difficulties and low efficiency in large-area probe layout, adjustment is difficult, and the relative position of the probe is difficult to obtain accurately and quickly.

This invention relates to the field of chip technology, and more particularly to a clock tree synthesis method for a high-bandwidth interface module, an electronic device, and a medium. The method includes S1, dividing the high-bandwidth interface module into a first region and a second region; S2, dividing the first region into M A m Divide the second region into M B regions. m S3, in A m Selecting the clock root node C m And taking the clock generation node as the starting point of the clock source, and taking all C... m Build a first-level distribution structure for the endpoint; S4, in each A m In the middle, with C m Starting from this point, construct each A m The corresponding sub-clock tree D m S5, in each B m In the middle, with adjacent A m C in m Starting from this point, construct B m The corresponding multi-tap clock tree E m And in C m and E m Delay compensation buffers are inserted between the points; S6, the clock tree of the high-bandwidth interface module is synthesized. This invention meets the timing convergence requirements of the high-bandwidth interface module and improves the performance and reliability of the chip.

The gutter inlet shaping mold comprises an outer mold, an inner mold, a steel plate strip, a positioning pipe and a connecting steel plate, the outer mold is of a regular polygon structure formed by fixedly connecting a plurality of side vertical steel plates end to end, the inner mold is of a regular polygon structure formed by fixedly connecting angle steel with the same number end to end, and the height of the steel plates is larger than that of the angle steel. The inner mold is arranged in the center of the outer mold, the side walls of the inner mold and the outer mold are arranged in parallel, the steel plate strips are welded and fixed to the corresponding corners of the outer mold and the inner mold respectively, the lower sides of the steel plate strips protrude and are embedded into concrete, and the steel plate strips serve as caulking strips for concrete parting after the gutter inlet is poured. The positioning pipe is fixed to the center of the inner mold through the connecting steel plate, the inner mold and the outer mold have a height difference to form a gradient so that cup opening concrete modeling can be integrally formed, meanwhile, the steel plate strips serve as caulking strips for gutter inlet four-corner concrete parting, and the construction procedure is simplified.

The invention provides an intelligent medical equipment integration system which comprises a three-dimensional digital design module which is based on a building information model technology, is used for constructing a three-dimensional model of a medical building, and accurately simulates the layout of equipment, reserved holes, pipeline interface positions and a relative spatial position relation. According to the invention, a three-dimensional digital design module, a construction auxiliary module, an integrated installation and debugging module, an intelligent diagnosis module, a cloud operation and maintenance module and a big data analysis module are utilized to realize full-process intelligent management of medical equipment from design, installation to operation and maintenance. By means of the building information model technology and the Internet of Things technology, efficient equipment layout, precise construction, automatic equipment calibration and debugging can be achieved, the operation state of the equipment can be monitored in real time, and predictive maintenance suggestions are provided through big data analysis. The equipment installation precision and efficiency are improved, manual intervention is reduced, the service life of the equipment is prolonged, and the management level of the medical equipment is remarkably improved.

The invention relates to an arrangement of a plurality of flat components arranged one on top of the other in an arrangement direction, in particular for a fuel cell system, at least one of the plurality of flat components having at least one adjustment mark, the adjustment mark can be detected, in particular for an optical detection device, even when at least one further flat component is arranged on the flat component marked by the adjustment mark in the arrangement direction.

The invention discloses an intelligent damage location method applied to a disk-type scaffold structure, comprising: determining a vibration sensor layout scheme of the disk-type scaffold according to a vulnerable structure analysis method; acquiring vibration data of multiple structures of the disk-type scaffold according to an excitation method; determining the vibration mode of each structure according to the vibration data of each structure based on a modal analysis method; analyzing the vibration mode of each structure according to a preset damage identification algorithm to determine the damaged structure; the invention uses a vulnerable structure analysis method to accurately layout the number and positions of vibration sensors, improves monitoring accuracy and reduces sensor layout costs, and determines the damaged structure by using a modal analysis method to determine the vibration mode. Compared with the acoustic emission technology, the invention is less affected by construction site noise and has higher damage location accuracy.

The invention discloses a fiber bragg grating sensor tooth root positioning tool, a pasting device and a method, the positioning tool is used for positioning a fiber bragg grating sensor at the tooth root of a gear, and the positioning tool comprises a positioning bottom plate which is used for being attached to the tooth root, so that the fiber bragg grating sensor is positioned between the positioning bottom plate and the tooth root; the optical fiber penetrating through hole is formed in the positioning bottom plate, so that the optical fiber grating sensor is exposed from the optical fiber penetrating through hole to be used by a subsequent process; the bottom edges of the two guide plates are connected with the two sides of the positioning bottom plate respectively, and the guide plates are used for being attached to the tooth surface; the two guide plates and the positioning bottom plate form a concave guide groove, and the angle between the guide plates and the positioning bottom plate is adjustable, so that the concave guide groove is matched with the tooth groove. The positioning tool can realize accurate arrangement of the optical fiber in a narrow space, avoids measurement errors caused by offset, and is suitable for narrow curved surface spaces such as gear tooth grooves and the like.

The invention discloses a wiring machine, which comprises a rack, a portal frame, a wiring manipulator, a straightening device and an unwinding device, and is characterized in that an operation platform is arranged on the rack, and the operation platform is used for bearing a heating plate; the portal frame is arranged on the operation platform in a striding mode and connected to the rack in a sliding mode so that the portal frame can move in the longitudinal direction of the operation platform, and a transverse moving pair is arranged on the portal frame. The wiring manipulator is in driving connection with the transverse moving pair; the straightening device is connected to the wiring manipulator and comprises a supporting disc, clamping assemblies and a driving assembly, the supporting disc is provided with a center hole used for allowing a cable to penetrate through, the clamping assemblies are evenly arranged on the periphery of the center hole in the circumferential direction, and the driving assembly is in driving connection with the clamping assemblies; the clamping assembly faces or deviates from the center of the supporting disc so as to clamp or loosen the cable; the unwinding device is used for unwinding and conveying a cable. According to the technical scheme, the situation that the cable is bent and not straight is corrected, and it is avoided that the cable is knotted, and wiring precision is affected.

The present invention discloses a method for measuring the pressure and flow rate of a vehicle engine cooling water circuit, and the method comprises the following steps: step S1: drawing a cooling system schematic diagram; step S2: arranging cooling system flow measurement points; step S3: test method. The present invention can realize the optimal design of the coolant flow resistance of the cooling system, and can obtain the resistance of key components such as water pump, cylinder water jacket, cylinder head water jacket, water circuit, and radiator through accurate pressure measurement data, and can improve the key components of the cooling system so that each part reaches the optimal state, and realizes the "low resistance" flow of the entire cooling system; it can realize the reasonable adjustment of the temperature setting point, and use a multi-way control valve to optimize the coolant flow distribution at each engine operating point, and fully adapt to the cooling needs of the engine during actual operation, so as to realize the reasonable control of the engine water temperature in all operating conditions, extend the service life of the engine, and improve the working efficiency of the engine.

The invention discloses a quick plastering screeding and ground mortar leveling screeding control device which comprises a fixed frame, a guide rail, a thickness adjusting device, a screeding strip laying device and a perpendicularity adjusting device. The thickness adjusting device is arranged on the fixed frame and is connected with the guide rail; the screeding strip laying device is arranged above the two rails in a sliding manner; and the perpendicularity adjusting device is arranged on the fixed frame and is connected with the guide rail. The plastering thickness is adjusted and designed through the fixing frame and the thickness adjusting device; the fixing frame and the perpendicularity adjusting device are matched to achieve perpendicularity adjustment of plastering. Mortar pouring is carried out while the screeding strip laying device runs in the track, mortar enters the U-shaped grooves to form strip-shaped screeding strips, and the whole screeding strips can be finally formed through slow downward movement of the screeding strip laying device. The screeding strip can be conveniently and accurately arranged on a large scale, and the plastering thickness design and perpendicularity control are more convenient.

This utility model relates to the technical field of waste gas treatment and resource recovery equipment, specifically disclosing a resin adsorption-desorption-condensation recovery device that is easy to maintain. It includes a recovery tank, which provides the main body housing space for the device. The bottom of the recovery tank is supported by a support base, and the top of the recovery tank is covered with a protective cover. The recovery tank and the protective cover together form a closed tank body. This easy-to-maintain resin adsorption-desorption-condensation recovery device uses an adsorption-desorption inner cylinder that passes through a limiting bracket, with its bottom end only abutting against the inner wall of the recovery tank. It adopts a disassembled and assembled connection, and the protective cover can be directly removed from the top of the recovery tank. When it is necessary to replace the adsorption resin layer or repair the internal components of the adsorption-desorption inner cylinder, simply open the protective cover to remove the adsorption-desorption inner cylinder from the recovery tank without disassembling the entire device. This effectively simplifies the operation process, shortens downtime for maintenance, and improves the overall ease of maintenance of the device.

The utility model discloses a high-speed chip mounter soldering lug material gun which comprises a material gun shell, a control assembly arranged on the rear side of the material gun shell, a display screen arranged in the middle of the top of the control assembly, a discharging assembly arranged at the bottom of the material gun shell, and a soldering lug channel arranged at the top of the material gun shell. A cutter is arranged at the top of the front side of the material gun shell, a first induction photoelectric device monitors that materials arrive, the materials are pressed through a pressing device, then the materials are limited through a soldering tin material roll material width limiting assembly, and the materials further penetrate through the bottom of a material belt pressing plate to prevent a soldering tin material roll from deviating in the moving process; the wide limiting assembly and the limiting device of the material belt pressing plate can ensure that the soldering tin material roll is kept stable in the moving process, deviation is avoided, accurate arrangement and welding quality of the soldering tin material are guaranteed, the soldering tin material roll is limited and traversed, the positioning accuracy of the material can be improved, the accuracy and consistency of welding spots are guaranteed, and the welding quality of the soldering tin material roll is improved. Therefore, the welding efficiency and quality are improved.

The utility model relates to a prefabricated aerated concrete block wall with an embedded sleeve, which comprises a first prefabricated block, a second prefabricated block, a third prefabricated block and a fourth prefabricated block, and the first prefabricated block, the second prefabricated block, the third prefabricated block and the fourth prefabricated block are all autoclaved aerated concrete blocks; the specification size of the first prefabricated block is 600 mm * 200 mm * 100 mm, and two PVC sleeves with the diameter phi of 20 mm are pre-buried in the first prefabricated block. The size of the prefabricated block II is 600mm * 200mm * 100mm, the prefabricated block II is provided with a hole for mounting a switch box or a socket, the size of the hole is 90mm * 90mm * 40mm, two PVC (polyvinyl chloride) sleeves with the diameter phi of 20mm are pre-embedded in the prefabricated block II, and the PVC sleeves are communicated with the hole; and the precast blocks directly participate in masonry, so that the problems of construction vibration and masonry cracks caused by rear grooving are avoided, and the integrity of the wall body and the quality of subsequent plastering engineering are improved.

The utility model discloses a uniform tinning device for tinning a copper wire. The uniform tinning device comprises a tin liquid box, a liquid inlet structure, a tinning assembly, a centrifugal structure, a lead structure and a heating structure, a liquid level observation window is installed on the front surface of the tin liquid box in a nested mode, a tin box cover plate is installed on the tin liquid box through a hinge, a tin plating assembly is installed on the upper surface of the tin box cover plate, a tin plating door is installed on the tin plating assembly through a hinge, one end of the tin plating assembly communicates with the tin liquid box through a liquid inlet structure, and a centrifugal structure is installed on the front surface of the tin liquid box. Three lead structures and three heating structures are installed in the tin plating assembly. According to the utility model, the lead structure is matched with the heating structure, so that the copper wire body can be subjected to all-directional tin plating treatment in the tin plating process, and the uniformity and adhesive force of a tin plating layer are ensured.

The application discloses a kind of hanging microphone array device, it is related to acoustic device technical field, including by upper shell, lower shell and extension arm mounting base sequentially connected from top to bottom, battery, attitude sensor and multichannel signal acquisition board are equipped in upper shell, a plurality of extension arms are connected with the circumference of upper shell in circumferential direction, the upper end of each extension arm is connected with upper shell by angle adjusting device, the angle of extension arm opening outward can be adjusted and locked by angle adjusting device, a plurality of acoustic sensors are separately arranged in each extension arm along its length direction, radio communication module is equipped in lower shell, radio communication module antenna is arranged in the bottom of lower shell, battery is used to power supply entire device, multichannel signal acquisition board is electrically connected with acoustic sensor, multichannel signal acquisition board and attitude sensor are electrically connected with radio communication module respectively.The application has good signal acquisition, and the position and intensity information of sound source under different frequencies can be accurately positioned.

This application discloses a room layout prediction method, apparatus, air conditioning equipment, and storage medium, relating to the field of room layout prediction technology. The method includes: acquiring moving object trajectory data collected by radar, and setting the height of the moving object in the trajectory data as a default height; predicting the moving object trajectory data to obtain a room layout, the room layout including layout classifications for each location within the room; determining the target height of the moving object in each trajectory data based on the layout classifications, and updating the trajectory data; and predicting based on the updated trajectory data to obtain an updated room layout. By first predicting the room layout using a default height and continuously updating the default height, the method obtains an activity height of the moving object that is closer to the actual value, thereby obtaining a more accurate room layout and improving the accuracy of room layout prediction.