225results about How to "The principle is simple" patented technology

The invention discloses a thinking chain-based software vulnerability automatic repair method and a storage medium. The method comprises the following steps of S1, preprocessing training data; constructing input and output of the model, including a vulnerability program, a repair position and a repair program; s2, model training; taking a vulnerability program as the input of the model, and constructing a sequence of {a repair position + a repair program} as the expected output; step S3, vulnerability restoration; and S2, inputting a given bug program to be repaired into the trained model obtained in the step S2 after utilizing the input in the step S1, searching possible outputs by utilizing a cluster search technology, and arranging the outputs from high to low according to the possibility to obtain candidate repair programs generated by CotRepair. The storage medium is used for storing a computer program for executing the method. The method has the advantages of simple principle, wide application range, high automation degree, high repairing efficiency and precision and the like.

A space-deployable parabolic antenna back frame based on a thick plate origami structure relates to the field of aerospace equipment. Aiming at the problem of low folding and unfolding efficiency of traditional parabolic antennas, the present application introduces origami structure and modular design concepts into the design of a space-deployable parabolic antenna back frame. The deployable antenna back frame is a single-degree-of-freedom thick plate deployable mechanism composed of hinge connections. Different thick plate origami modules are connected and fixed in a given manner, and the drive can achieve stretching and surface deformation. By covering the surface of the antenna back frame with a flexible cable net, the folding and contraction deformation of the entire parabolic antenna back frame can be achieved. The initial shape of the back frame is the minimum shape, which can save the space occupied during launch. After the antenna is launched to the working position in space, the antenna back frame is unfolded by a motor drive to achieve the formation of the surface parabolic cable net, which can effectively improve the folding and unfolding efficiency of the antenna.

The invention provides a radar image adversarial sample generation and target detection attack method based on a meta-adversarial despeckle network, and the method comprises the steps: constructing a simulated speckle filtering data set for an optical image data set based on a speckle statistical model; training a despeckle network based on the constructed simulation speckle filtering data set, and constructing a real SAR image target detection and filtering data set in combination with a real SAR detection data set; constructing a meta-adversarial despeckle network training framework, and training a meta-adversarial despeckle network model by using a real SAR image target detection and filtering data set; and using the trained meta-adversarial despeckle network model to carry out adversarial despeckle processing on the original SAR image. The method is simple in principle and easy and convenient to implement, and the speckle removing result has high black box attack ability while keeping a high-quality image; and the method has a wide attack application scene.

The invention discloses a structure-decoupled capacitive MEMS six-dimensional force sensor chip and a preparation process thereof, the structure-decoupled capacitive MEMS six-dimensional force sensor chip comprises a top pole plate, a first outer frame and a bottom pole plate, and the first outer frame is located at the outer side of the top pole plate; the top pole plate comprises an upper electrode and silicon columns, and the silicon columns are distributed in the middle of the upper electrode; the bottom pole plate comprises a base body, a lower electrode, anchor points and a bonding pad, the anchor points are distributed in the middle of the lower electrode, and the positions of the anchor points correspond to the positions of the silicon columns. The device has the advantages of full-dimensional physical structure decoupling, small size, high sensitivity, small temperature influence and easiness in manufacturing, and is suitable for severe working environments, such as mechanical hand fingertips, micro medical robots and the like, with small mounting and working spaces and sharp temperature and humidity changes.

The utility model belongs to the field of constructional engineering, and discloses a water blocking structure for a concrete structural joint to act on an ultrahigh water head, which comprises a copper waterstop and an expansion waterstop strip, the copper waterstop penetrates through the concrete structural joint and is positioned in concrete, the distance between the copper waterstop and the upstream face of the concrete is not less than 20cm, and the expansion waterstop strip is arranged in the concrete structural joint. The copper water stop belt located at the concrete structural joint is in a groove shape, and expansion water stop strips are embedded in concrete on the two sides of the structural joint and arranged on the copper water stop belt. The one-way and two-way water retaining device is suitable for building structural joints with high water heads and ultrahigh water heads, the principle is simple, machining and mounting are easy, the water retaining reliability is improved, and the one-way and two-way water retaining effect is achieved.

The invention belongs to the field of power system protection, and relates to a power distribution network protection method and device suitable for high-proportion distributed power supply access, and the method comprises the steps: collecting the bus voltage of a power distribution network and the outlet current of a feeder line, and judging whether to start protection or not; after protection is started, carrying out equivalence on a plurality of distributed power supplies on a feeder line, and determining an initial value of short-circuit current calculation according to parameters of the equivalent distributed power supplies; judging whether short-circuit calculation is converged or not, if yes, calculating fault parameters of the equivalent distributed power supply when the tail end of the feeder line is in fault, and if not, calculating the fault parameters of the equivalent distributed power supply when the tail end of the feeder line is in fault by using an improved method; calculating the positive sequence current of a feeder outlet when the tail end of the feeder fails; current protection is set again according to the positive sequence current, whether the positive sequence current of the feeder line outlet under the fault meets the action criterion or not is judged, if yes, the protection device sends out a tripping signal to cut off the fault feeder line, and if not, protection is returned; the method is not affected by factors such as short-circuit transition resistance, fault positions and system operation modes, and has the advantages of being high in speed, good in reliability, high in adaptability and independent of communication.

The invention discloses an SOC calculation method and system suitable for a super capacitor module, and the method comprises the steps: determining the voltage use range of a super capacitor monomer, and the voltage use range comprises a voltage use lower limit and a voltage use upper limit; collecting the current voltage value of the super capacitor monomer in real time; according to the characteristics of the charging and discharging characteristic curve of the super capacitor, the SOC value of the super capacitor monomer is calculated; taking the calculated SOC value of the single super-capacitor as the SOC value of the super-capacitor module, or performing weighted average processing according to the SOC value of each single body in the super-capacitor module to obtain the SOC value of the super-capacitor module; and error correction: dynamically correcting an SOC calculation result, and adapting to the condition that the performance of the super capacitor changes along with environmental conditions. The SOC is calculated by utilizing the characteristic that the charge and discharge characteristic curve of the super capacitor tends to be linear, and the relationship between the voltage and the SOC is relatively linear in the charge and discharge process of the super capacitor, so that the SOC of the super capacitor can be calculated more accurately, the precision requirement is met, and the calculation accuracy is remarkably improved.

The invention discloses a liquid helium ultralow-temperature impact system based on vacuum and a use method thereof, and belongs to the technical field of liquid helium ultralow-temperature impact mechanical property testing equipment, and the liquid helium ultralow-temperature impact system based on vacuum comprises an ultralow-temperature vacuum experiment cavity, a vacuum unit, a liquid helium supply device, an impact device and a strain acquisition device. The device is clear in structure and simple in principle; liquid helium is adopted for refrigeration, so that the temperature in the experiment cavity can reach an ultralow temperature environment, and the device can be used for impact loading mechanical property testing of different samples in a complex stress state in the ultralow temperature environment.

The invention provides a fireproof door film laminating machine, and relates to the technical field of fireproof door production and processing equipment. A fireproof door film laminating machine comprises a treatment box, an ejector and a servo motor, the driving end of the servo motor penetrates through the bottom of the treatment box, extends into the treatment box and is fixedly connected with a driving wheel, the outer surface of the driving wheel is fixedly connected with a plurality of connecting rods, and the connecting rods are distributed in an annular array. After the fireproof doors of the same batch are subjected to film coating processing, the ejector is closed, the servo motor keeps the operation state, cooling of film coating liquid can be accelerated through operation of the equipment, standing and airing are not needed, the occupied space is reduced, the production efficiency is improved, and compared with a traditional gear type revolution and rotation transmission mode, the equipment has the advantages that the production efficiency is improved, and the production cost is reduced. And the complexity of the equipment is further simplified, the mechanical problem of traditional machining equipment is avoided, and the principle is simple.

The application discloses a wind-solar-water combined short-term optimization scheduling method based on wind-solar uncertainty prediction scenes, which comprises the following steps: pre-processing and dividing levels of historical wind-solar output data; establishing a wind-solar prediction scene construction model and a reduction model to generate a wind-solar prediction typical scene set; establishing a scene migration probability calculation model to obtain the migration probability between different time periods of actual wind-solar output values; updating the prediction scene according to the wind-solar prediction typical scene set, combining the hourly wind-solar output measured data and the scene migration probability information; and performing wind-solar-water combined short-term optimization scheduling. The application is based on the prediction and measured data of historical wind-solar output, considers the influence of the uncertainty of wind-solar output on the wind-solar-water combined short-term optimization scheduling by constructing the wind-solar output prediction scene, and provides a new method and technology for the optimization scheduling of a multi-energy complementary system connected with new energy.

The utility model discloses an improved precast beam transportation fixing tool which comprises a fixing frame, vertical square steel pipes are fixedly arranged on the two sides of the fixing frame, the two vertical square steel pipes are connected with the fixing frame through a plurality of supporting frames, and movable frames are slidably inserted into the two vertical square steel pipes. Height adjusting mechanisms corresponding to the movable frames are arranged on the two vertical square steel pipes, a precast beam is placed on the fixed frame, and fixing mechanisms corresponding to the precast beam are arranged on the two movable frames. The fixing mode that the precast beam is fixed through a rope is replaced, binding and unlocking of the rope are not needed, the loading and unloading efficiency of the precast beam is greatly improved, the steel structure replaces the rope, the rope is prevented from being abraded and fractured, and the safety in the transportation process is greatly improved.

This invention discloses a method, apparatus, and device for simultaneous localization and mapping (SLAM) of a mobile robot. The method involves acquiring depth information, LiDAR scanning information, and odometry information of the robot's environment; performing 3D projection on sparse point cloud data to obtain 2D information of the robot's environment; performing spatiotemporal synchronization processing on the 2D information, LiDAR scanning information, and odometry information; establishing pose nodes using the spatiotemporally synchronized 2D information, LiDAR scanning information, and odometry information; performing point cloud registration on the spatiotemporally synchronized 2D information and LiDAR scanning information using an iterative nearest point method; optimizing the pose nodes in real time using a second iterative nearest point method; and drawing a map based on the optimized pose nodes and pose transformation matrix; and completing loop closure screening using a third iterative nearest point method, with the selected loops used for loop closure detection. This invention can simultaneously leverage the advantages of LiDAR and visual sensors in unknown and complex environments.

The application discloses a self-adaptive bolt fastening head, which comprises a fastening motor, a fastening rod arranged on an output shaft of the fastening motor, a fastening sleeve coaxially arranged on the fastening rod, a clamping arm hingedly arranged on the fastening sleeve, and a clamping arm sleeve arranged outside the fastening sleeve, wherein when the fastening sleeve moves axially towards the inside of the clamping arm sleeve, the clamping arm sleeve can press the outside of the clamping arm to make the first end of the clamping arm swing towards the inside, and when the fastening sleeve moves axially towards the outside of the clamping arm sleeve, the first end of the clamping arm swings towards the outside. The self-adaptive bolt fastening head has the advantages that the clamping arm can be adapted to the re-tightening operation of bolts of different specifications through the expansion and contraction of the clamping arm, the self-adaptive bolt fastening head has strong adaptability, and the self-adaptive bolt fastening head is suitable for a wide range of applications.

The application discloses a kind of high-sensitivity magnetic field detection device and method, device includes sequentially arranged in light propagation direction narrow line width tunable light source, polarized light formation module, first convex lens, second convex lens, Fabry-Perot cavity and detection calculation module, the Fabry-Perot cavity is equipped with the magneto-optical crystal that circled magnetic field coil, wherein, narrow line width tunable light source emits elliptically polarized signal light, polarized light formation module is formed into linearly polarized light of preset angle by signal light, Fabry-Perot cavity is formed with the linearly polarized light of resonance by injection, and linearly polarized light is shot from the cavity after being incident with two modes of light beam after magneto-optical crystal, detection calculation module includes connected detection unit and calculation unit, detection unit receives two modes of light beam, and calculation unit calculates the magnetic field applied to magneto-optical crystal according to the frequency difference of two modes.The application simple structure, simple operation, wide use, high sensitivity.

A target detection and tracking method and storage medium combining radar and infrared thermal imaging are disclosed. The method includes the following steps: Step S1: Acquiring millimeter-wave radar data and raw infrared thermal imaging data within a given space; Step S2: Performing imaging processing on the radar and infrared data respectively, removing background from the radar imaging results; Step S3: Performing time-dimensional registration on the infrared imaging results based on the radar refresh rate; performing CFAR detection processing on the matched results and clustering to output the target point cloud and centroid; Step S5: Using the transformation relationship between the spatial three-dimensional coordinate system and the infrared two-dimensional image coordinate system, obtaining the set of pixel positions of the target in the two-dimensional infrared thermal image; Step S6: Performing thermal feature calculation; Step S7: Outputting the target feature information. The storage medium is used to implement the above method. This invention has the advantages of simple principle, wide applicability, and high detection accuracy.

The invention discloses a programmable online kernel self-diagnosis implementation method and a storage medium. The method comprises the following steps: S1, constructing a hardware architecture; s2, test excitation and signature pre-generation; s3, software programmable configuration is carried out; the CPU sets a test mode, the number of execution SEEDs, test granularity, clock distribution and start / stop through the configuration register; s4, preparing before testing; s5, executing an online test; reading SEED from the ROM, generating excitation by a Pattern generator, loading the excitation to a kernel scan chain, capturing output, generating an MISR, and comparing the MISR with a GOLDEN MISR; s6, fault processing and a safety mechanism; and S7, recovering after testing. The storage medium is realized based on the method. The method has the advantages of simple principle, wide application range, good flexibility, high coverage rate and the like.

The present application relates to a kind of vehicle speed detection methods based on outer pole face image, belong to the field of automatic driving.The method includes: S1: periodically capture the image of the road in front of vehicle, obtain time-space distance image;S2: the curve cluster surface of the time-space distance image obtained is divided into several parts;S3: the curve corresponding to each part obtained;S4: by its analytic differential, the speed curve of each part is obtained;S5: the generation of full interval speed curve, according to the displacement of feature point, the speed of vehicle is calculated.The present application is based on the principle of visual kinematics, using the image obtained by vehicle-mounted camera and distance sensor, the speed of vehicle is calculated by observing the motion of feature point in image.Compared with the existing speed detection method based on physical sensor, the method is lower in cost, but the principle is simple, and the accuracy is also higher.The method can be used alone, can also be combined with the data of other sensors, improve detection accuracy and stability.

The application discloses a kind of FSI dynamic ranging methods based on high-order linear prediction-minimum mean square error, mainly solve the problem of slow speed of existing FSI ranging system to the distance to be measured solution, insufficient dynamic measurement capability.Solution includes: 1) construct to generate the optical frequency scanning interference ranging system required for distance solution interference signal;2) set the sweep rate of laser, so that it carries out optical frequency continuous tuning output, after interference, generates the sinusoidal interference signal that changes continuously on time domain after detection;3) the data acquisition device in FSI system carries out real-time acquisition to sinusoidal interference signal, and sample point is transmitted to measurement module;4) measurement module utilizes high-order linear prediction-minimum mean square error cascade algorithm to carry out real-time prediction to sampling data, and utilizes the interference signal frequency obtained to complete the real-time solution of distance.The application can make the distance solution speed of FSI system significantly improve, effectively improve the ranging rate.

The utility model discloses a period checking device for a wide-range pressure sensor, which comprises a base, a jack main body is arranged on the base, and a jack lifting column is arranged on the jack main body; the top seat presses the top of the jack main body and exposes the jack lifting column; the pressure sensor limiter is inversely mounted on the top seat, a pressure gauge is mounted at the top end in the pressure sensor limiter, and a pressure sensor body and a thick gasket are sequentially arranged at the bottom end of the pressure gauge in a penetrating manner; the pressure sensor detection device is simple in principle, simple in structure, low in cost, convenient to carry, basically unlimited in application scene, and capable of rapidly detecting whether one or more pressure sensors are abnormal or not at the same time. And the misuse possibility of the abnormal state sensor is quickly eliminated.

The present invention discloses a pipeline conveying valve and pipeline leakage automatic detection system and a leakage detection method, including a hot water bucket, a dye storage bucket, a coloring tank, a two-way valve, a three-way valve, a pressure sensor and a gas storage tank, the gas storage tank is connected to the inlet of the tenth two-way valve, the outlet of the tenth two-way valve is connected to the inlet of the third two-way valve, the outlet of the third two-way valve is connected to the third port of the first three-way valve, a first pressure sensor is arranged between the third two-way valve and the first three-way valve, the outlet of the tenth two-way valve is connected to the inlet of the fourth two-way valve, the outlet of the fourth two-way valve is connected to the third port of the fifth three-way valve, and a second pressure sensor is arranged between the fourth two-way valve and the fifth three-way valve. Based on the above system, the present invention also discloses a leakage detection method. The system is easy to deploy, easy to detect, has a good detection effect, and the leakage detection method is simple to operate and has high detection efficiency.

The invention belongs to the field of oil and gas field development, and discloses a drillable and grindable high-water-content horizontal well plugging tool and a using method.The plugging tool comprises a first connector and a connecting sleeve which are connected with one end of a bridge plug body, and a second connector and a lifting sleeve which are connected with the other end of the bridge plug body; according to the plugging tool, the pressure of the inner cavity of the mandrel acts on the main piston and the auxiliary piston; the main piston drives a nut, a central pipe, a second joint, a rubber sleeve shaft and a second cone to move upwards and extrudes the lower part of the slip to move upwards; the auxiliary piston drives the taper sleeve and the first cone to move downwards to extrude the upper part of the slip to move downwards, so that the slip is expanded to anchor the sleeve and the rubber sleeve is compressed to block an upper oil layer and a lower oil layer; the plugging tool combination can be installed at a reasonable position as required according to the plugging requirement of a water outlet point of a middle-high water content horizontal well, a swabbing production layer section can be converted by lifting and lowering a pipe column at a wellhead, the requirement of two-section and three-section separated mining is met, an oil pipe does not need to be directly connected with a separated mining tool, and the reliability is improved.

The application discloses Au@PATP@Ag NRs nanomaterial and a preparation method and application thereof. The application also discloses a method for qualitatively and quantitatively detecting nicotine concentration based on surface enhanced Raman scattering technology and application thereof. The Au@PATP@Ag NRs nanoparticles are used as active base materials of SERS, and a target object is analyzed and detected by using a Raman spectrometer. According to a linear relation equation of a ratio of SERS signal intensity of different concentrations of nicotine solution to characteristic peaks of nicotine and an internal standard substance, the content of nicotine in a solution to be detected can be obtained, and the detection sensitivity of nicotine is greatly improved. The internal standard molecule is introduced into the core-shell structure, and the accuracy of quantitative detection of nicotine is improved. The application also has great application in sensitive detection of nicotine in cigarettes and environmental cigarette smoke. In addition, the application also has the advantages of simple principle, rapidness, simple pretreatment, high selectivity, high detection sensitivity and the like.

The invention relates to the technical field of low-voltage electrical product manufacturing, and discloses an interlocking structure of a bypass change-over switch, the interlocking structure comprises a drawer seat, and the bypass change-over switch and an automatic change-over switch are respectively installed on the upper layer and the lower layer in the drawer seat; rotating shaft weldment assemblies are arranged on the bypass change-over switch and the automatic change-over switch, connecting plate rivets are installed on the rotating shaft weldment assemblies, and rolling sleeves are arranged on the connecting plate rivets in a sleeving mode; an interlocking rod is installed on a side plate of the drawer base, connecting parts are arranged at the two ends of the interlocking rod, and the interlocking rod makes contact with the rolling sleeves through the connecting parts and is used for achieving the interlocking function. According to the interlocking structure of the bypass change-over switch, the interlocking structure is simplified, the interlocking control function is achieved through matching of all the matching faces on the interlocking rod and the rotating shaft weldment assembly, the complexity of the interlocking structure can be remarkably reduced, the principle is simple, reliability is high, operation and use are convenient, and the transmission process of the interlocking structure is stable; and the whole set of interlocking structure automatically runs without manual operation direction selection, so that the error rate and the personnel operation risk are reduced.

The invention discloses a purification device and a purification method for removing NO2 and N2O from NO. The purification device for removing NO2 and N2O from NO comprises: a primary refrigeration device for freezing and solidifying NO2 and N2O in raw gas; a secondary refrigeration device connected to the gas outlet of the primary refrigeration device by pipes, and used for secondary freezing and solidifying the unsolidified NO2 and N2O in the primary refrigeration device; a negative pressure sampling and analysis device connected to the gas outlet of the secondary refrigeration device, and used for sampling and analyzing the gas discharged from the secondary refrigeration device; and a product tank connected to the gas outlet of the negative pressure sampling and analysis device by pipes, and used for storing and analyzing qualified NO gas. The device has low equipment investment, low cost, high recovery rate, and is suitable for large-scale industrial production.

The application discloses a closed laser shock peening water confinement layer applying device, which comprises a structure closing module, an angle adjusting module and a water confinement layer applying module; the structure closing module comprises a shell and a deformation cover, the rear end of the deformation cover is fixedly installed on the shell, the opening and closing angle of the front end of the deformation cover is adjustable, the shell and the deformation cover constitute an isolated cavity which is open at the front side and has an adjustable opening and closing angle and is closed at the rear side; the angle adjusting module is installed on the shell and is used for adjusting the opening and closing angle of the deformation cover; the water confinement layer applying module comprises a water pumping pump used for conveying deionized water into the isolated cavity and a vacuum pump used for pumping the deionized water in the isolated cavity out; the application further discloses a closed laser shock peening water confinement layer applying method, which is based on the closed laser shock peening water confinement layer applying device; the whole device and method have the characteristics of simple principle, strong operability, controllable water flow, wide structure applicability and good engineering practicability.

The invention relates to the technical field of radars, in particular to a radar-infrared multi-spectrum stealth antenna based on a polarization conversion metasurface. An infrared shielding layer, an upper dielectric substrate, a double-axe-shaped metal patch, a lower dielectric substrate and a metal floor are sequentially arranged from top to bottom, and a patch antenna with a coaxial feeder line is mounted in the upper dielectric substrate. The broadband radar and infrared dual-stealth antenna not only realizes broadband radar and infrared dual-stealth with good effects, but also has the advantages of relatively wide antenna working bandwidth, miniaturized structure, low manufacturing cost, simple principle and the like. Due to the advantages, the antenna provides a new thought for the design of a multispectral stealth antenna, and has potential application value in the fields of wireless communication, military affairs and the like.

This invention relates to a method and apparatus for suppressing synchronous oscillations in a power synchronous control converter. The method involves obtaining a first difference ΔP between a reference value of active power and a measured value of active power at the grid connection point of the power synchronous control converter; obtaining a first difference ΔQ between a reference value of reactive power and a measured value of reactive power at the grid connection point of the power synchronous control converter; limiting the synchronous frequency component of the first difference ΔP using a first band-stop filter to obtain a second difference ΔP; obtaining a reference phase of a modulation signal based on the second difference ΔP; limiting the synchronous frequency component of the first difference ΔQ using a second band-stop filter to obtain a second difference ΔQ; calculating a reference voltage amplitude of the modulation signal based on the second difference ΔQ; and generating a modulation signal for controlling the power synchronous control converter based on the reference phase and reference voltage amplitude of the modulation signal. This invention can effectively suppress synchronous oscillations during the operation of a power synchronous control converter.

The utility model discloses a multi-station positioning device based on workpiece surface treatment, which comprises an objective table, a rack, a positioning block, a pushing piece and a driving frame, a plurality of accommodating areas are arranged on the objective table, workpieces to be processed are positioned in the accommodating areas, and the objective table can move along a first direction and at least has a positioning position; a positioning block is arranged on one side of each accommodating area; a plurality of pushing pieces are arranged on the rack, the moving directions of all the pushing pieces are parallel, an acute included angle is formed between the moving directions of all the pushing pieces and the first direction, each pushing piece is provided with a pushing part, the objective table is located below the positioning position, the rack is located on one side of the objective table, the positioning block and the pushing part are oppositely arranged in the moving direction of the pushing pieces, and the containing area is located between the positioning block and the pushing part; the driving frame is movably arranged on the rack in the first direction, the positioning device further comprises a linkage structure for driving all the pushing pieces to move in the moving process of the driving frame, and the positioning device is simple in structure and principle and can synchronously position the multiple pieces to be machined.

The invention belongs to the technical field of wind-rolling plant starting wind speed measurement, and particularly relates to a method for measuring the propagation starting wind speed of solanum rostratum plants through a wind tunnel. The method comprises the following steps: (1) selecting a wind tunnel which is low in speed, large in section and stable and adjustable in wind speed; (2) selecting plastic simulation plants with different heights, and simulating a vegetation underlying surface; (3) simulating vegetation underlying surfaces with different density, height and coverage characteristics; (4) configuring a wind speed measuring device; and (5) selecting typical solanum rostratum plants, and measuring the average starting wind speed of the solanum rostratum plants on different underlying surfaces. Based on the wind propagation principle of the wind rolling plants, the starting wind speed of the solanum rostratum plants on different simulated underlying surfaces is measured through the wind tunnel, the principle is simple, measurement is accurate, and theoretical support is provided for prevention and control of the solanum rostratum.