442results about How to "Reasonable operation" patented technology

A data processing system-implemented method or data processing system readable medium can be used to model operating parameter(s) for a vendor. Detailed analysis of the impact of prices or other variables, on the demand of each item, is performed. These allow us to prune large numbers of prices or other variables which have little or no impact on a given item. After determining which prices and other variables are significantly related to an item, a more in-depth examination of that small list of variables may be performed. This in-depth examination will result in a set of final weighing factors, quantifying the effect of each on the item. The weighing factors for all other variables can be assigned a value of zero. By limiting the number of non-zero weighing factors, the time needed to generate all the weighing factors for a matrix (or matrices) is reduced.

It is an object of the invention to provide a droplet ejection apparatus capable of detecting whether or not a missing dot (absence of a pixel) actually occurs on a formed image. The droplet ejection apparatus of the invention has a driving circuit, a reciprocating mechanism and a plurality of droplet ejection heads. Each head includes a cavity filled with a liquid, a nozzle communicated with the cavity and an actuator, and ejects the liquid within the cavity through the nozzle in the form of droplets by driving the actuator by means of the driving circuit to change an internal pressure of the cavity while moving the plurality of droplet ejection heads relatively with respect to a droplet receptor by the reciprocating mechanism so that the ejected droplets land on the droplet receptor. The droplet ejection apparatus includes ejection failure detecting means 10 for detecting an ejection failure of the droplet ejected through each of the nozzles. The ejection failure detecting means 10 detects the ejection failure with respect to a droplet ejection operation of each droplet ejected through the nozzles when the plurality of droplet ejection heads eject the droplets onto the droplet receptor.

Design manufacturing and application of a triaxial penetration tester of the invention breaks through the limitation of permeability coefficient testing in Standard for soil test method GB / T50123-1999 and Specification of soil test SL237-014-1999. According to the invention, the tester is designed based on a varying-head principle; with water head with a height of up to 47 m provided by an air compressor, a constant head can be used to process the test results. Coarse grained soil and fine grained soil can be calculated both by a constant head and by a varying head, and the results are of the same order of magnitude and are quite close to each other. The tester of the invention comprises an air compressor, a penetration tester frame, a triaxial penetration pressure chamber, a liquid level sensor, a test data collector and a receiver, a data processing software, and a computer. Data are read on-line, are stored automatically, and samples of 10-9 cm / s or lower can be tested. The tester of the invention can test permeability coefficients of undisturbed soil, disturbed soil, and additive mixtures of soil and cement. The sample preparation method is simple and practical; the test is rapid and convenient, and covers the application fields which require permeability coefficient testing in soil mechanics or materials science.

Disclosed are systems and methods for configuring a vision detector, wherein a training image is obtained from a production line operating in continuous motion so as to provide conditions substantially identical to those that will apply during actual manufacturing and inspection of objects. A training image can be obtained without any need for a trigger signal, whether or not the vision detector might use such a signal for inspecting the objects. Further disclosed are systems and methods for testing a vision detector by selecting, storing, and displaying a limited number of images from a production run, where those images correspond to objects likely to represent incorrect decisions.

The invention discloses a monitoring method of salt ion content in saline soil based on a hyperspectral technology. The method comprises the following main steps: (1) collecting a soil sample in the wild and pre-treating the sample; (2) drying and sifting the soil sample; (3) measuring the total salt and eight salt ions in the soil sample; (4) carrying out hyperspectral measurement on the soil sample to obtain the original spectral reflectance characteristic curve of the soil sample; (5) processing the original spectral value, and carrying out correlation analysis between the spectral value and the measured salt ion content; (6) introducing the construction method of a support vector machine model, and performing model building and precision evaluation on the screened spectral transformation form. The monitoring method is relatively high in the prediction accuracy for each salt ion content in soil, provides a novel approach for the indoor measurement of the salt ion content in saline soil, and provides a novel way for achieving quick and lossless monitoring of the harm types of regional soil salinization.

The invention relates to a comb-shaped exchange vertical-lifting type mechanical stereoscopic parking garage. The garage comprises a lifting system, a transverse conveying system, a lifting comb platform, a transverse comb platform, a passing storehouse room, a protecting platform and an automatic control system. The garage is characterized in that operations of lifting, transversely conveying, turning around by rotating of automobiles can be smoothly linked through comb exchange of the lifting comb platform, the transverse comb platform and a rotary plate steel frame; meanwhile, each link is individually driven, each sub-system only carries out one-dimensional movement in space, that is to say, the lifting system is only responsible for conveying the automobile to vertically move up and down, the transverse conveying system is only responsible for conveying the automobile to parallel move left and right, and a rotating platform in the passing storehouse room is only responsible for turning the automobile around; and in addition, the protecting platform arranged above the passing storehouse room can shield objects falling from high altitudes, and prevent fallen objects from hurting people to ensure that the passing storehouse room is at a safety protection state. The comb-shaped exchange vertical-lifting type mechanical stereoscopic parking garage disclosed by the invention has the advantages of scientific design, ingenious structure, small floor area, high automobile parking and take-out speeds, good safety and the like.

The invention relates to the technical field of blast furnace ash resource reutilization, in particular to a process for recovering iron and carbon elements from blast furnace gas ash. A flotation method is adopted for recovering carbon, a re-separation and magnetic separation method is adopted for recovering iron, the total separation process is the combined technical process flow of flotation, re-separation and magnetic separation, the gas ash enters the coarse flotation after the slurry preparation and medicine adding, coarse flotation concentrates enter fine flotation, the fine flotation concentrates are final carbon concentrates, coarse flotation tailings and fine flotation tailings enter a re-separation coarse separation spiral chute to separate out re-separation tailings, the coarse spiral concentrates enter a fine separation spiral chute to obtain re-separation concentrates, ores in a fine separation spiral chute carries out self circulation, the tailings in the fine separation spiral chute enter a weak magnetic separation machine for carrying out magnetic separation, the weak magnetic concentrates and the re-separation concentrates are combined into final iron concentrates, and the weak magnetic tailings and the re-separation tailings are combined into final tailings. The process has the beneficial effects that the process is simple, the varieties of reagents are few,the process configuration is reasonable, the purification and impurity removal effects are obvious, the product quality is better, the recovery rate is high, and a new path is provided for the comprehensive utilization of the blast furnace gas ash.

The invention relates to a method for manufacturing surface wear-resisting impregnated paper of a laminate floor by dry-spraying Al2O3. The method comprises the following steps: impregnating pure wood pulp roll paper with a melamine-formaldehyde (MF) resin liquid; uniformly spraying the Al2O3 on the surface of the impregnated paper by utilizing a dry sprayer; allowing the impregnated and sprayed paper to enter a first oven for drying at the temperature of 100-150 DEG C; roll-coating 300-500% (relative to the weight of the paper) of the MF resin liquid on the paper surface after preliminary drying; and allowing the roll-coated paper to enter a second oven for drying at the temperature of 100-150 DEG C, controlling the whole-course running speed of the paper at 10-12m / minute, cooling, adjusting the temperature of the oven and machine speed so as to reach 6.0-7.5% of volatile matters and 40-60% of pre-curing degree, cutting and packaging. By means of the method, the defects of the prior art are overcome, and the spray quantity of the Al2O3 can be adjusted by controlling the dry sprayer so as to obtain the surface wear-resisting impregnated paper with reliable quality according to different wear-resisting requirements; and the method has the advantages of reasonable process and obvious effect, and is simple in operation, thus effectively improving the product quality.

The invention discloses a health care type snakehead ecological feed which is characterized by comprising raw materials of natural fish meal, soybean cake powder, chicken giblet dried powder, wheat flour, silkworm chrysalis meal, earthworm meal, peanut meal, corn flour, bone tandage, organic carrot powder, organic spinach powder, spiral seaweed powder, yeast powder, organic asparagus lettuce leaf meal, organic orange peel, organic pork liver dried meal, radix astragali powder, isatis root powder, Chinese rhubarb powder, folium artemisiae argyi powder and plantain herb powder. The health care type snakehead ecological feed has the advantages of being complete in nutritional ingredients and rich in animal protein and multiple natural vitamins and mineral substances, according with the requirement on snakeheads culture, ensuring that the snakeheads are good in palatability, being easy to digest and high in absorbing speed and utilization rate, and reducing the feed waste and the emission of waste; and the snakeheads are high in growth speed, strong in anti-disease capacity, high in cultivation survival rate and good in meat quality. The health care type snakehead ecological feed is wide in source of raw materials, convenient and easy to operate, reasonable in proportioning, and low in cost.

The invention relates to a soil salinity determining method based on a continuum removal method. The soil salinity determining method comprises the following steps: (1) collecting and processing a soil sample; (2) testing the salt content of the soil sample; (3) carrying out spectrum test on the soil sample to obtain the actual reflection spectral data of the soil sample; (4) processing the spectral data and extracting absorption characteristic parameters; (5) processing the spectral index; (6) carrying out model building and precision evaluation. The soil salinity determining method based on the continuum removal method, disclosed by the invention, is simple and reasonable in operating steps and low in cost and has the advantages that the real situation of soil salinization can be effectively reflected and a new acquiring way is provided for decision bases of salinization evaluation, improvement and control and plant structure adjustment of cultivated soil, thus the soil salinity determining method is suitable for popularization and application.

The invention discloses a method for producing dried hawthorn roll meat paste slices. The dried hawthorn roll meat paste slices are prepared by using lean pork as raw material, adding 8 to 10 weight parts of white granulated sugar, 1 weight part of monosodium glutamate, 0.5 weight part of salt, 1 to 1.5 weight parts of soy sauce, 0.5 weight part of pork refined cream, 0.1 to 0.2 weight part of composite phosphate and 0.1 to 0.2 weight part of ground cinnamon, pickling for 2.5 hours, carrying out batching on the pickled components and 30 to 50 weight parts of hawthorn paste and 3 to 4 weight parts of tomato sauce, uniformly mixing and then carrying out smearing, baking, roasting, cooling, cutting and packaging. The pork meat paste slices are processed by adopting a novel process; the dried hawthorn roll meat paste slices reach taste of conventional dried meat slices; cost of the dried meat slices is reduced; fruit and vegetable nutrition is added; varieties are increased; and flavor is improved. The production method not only is reasonable and practical, but also is simple to operate, has a good effect and is beneficial to be widely popularized.

A droplet ejection apparatus includes ejection failure detecting means for detecting an ejection failure, counting means for counting the number of ejection failures, and droplet receptor transporting means which carry out discharge and feed of the droplet receptor. The ejection failure detecting means detect the ejection failure with respect to a droplet ejection operation when the plurality of droplet ejection heads eject the droplets onto the droplet receptor. In the case where the number of ejection failures exceeds a predetermined reference value, the droplet ejection apparatus stops the droplet ejection operation and operates the droplet receptor transporting means to discharge the droplet receptor from and feed another droplet receptor to the droplet ejection apparatus to carry out a new and same droplet ejection operation with respect to the fed droplet receptor.

The invention discloses a construction method of an attitude angle regulating model of a manless working face coalcutter for a thin seam, belonging to a construction method of an attitude angle regulating model of a coalcutter. The construction method is characterized in that a situation that gyrocopes are installed on the machine body, the front roller and the rear roller of the manless working face short machine body coalcutter is taken as a basic to construct the attitude angle regulating model of the manless working face coalcutter; when the coalcutter is drawn back and forth to perform automatic memory coal cutting on the manless working face, a primary coordinate system is established in the center of the coalcutter, and an interconversion principle between the primary coordinate system and a space coordinate system is combined, so as to derive the conversion between the moving coordinate system and the primary coordinate system after the attitude angle of the coalcutter is regulated; the inclined angle of the roller rocker is measured after the initial inclined angle and the attitude angle of the coalcutter are regulated through a gyroscope, so as to further construct a control model for attitude angle regulation and automatic roller height adjustment. The construction method disclosed by the invention has the advantages that operation is reasonable, and production benefit, safety and reliability are good; the control model control method improves the automation control of the coalcutter, improves the use performance, enhances the reliability and prolongs the service life of equipment.

The present invention relates to a remote transferred high temperature resstant pressure / differential pressure transducer. Said invention includes the following components: transducer, measuring membrane, isolating diaphragm, membrane hard core, connecting flange, rigid stress bar and membrane box. Said invention also provides their connection mode, and said invented transducer can raise accuracy of measurement, and can prolong its service life.

A resonant converter comprises a first and a second input terminal (1, 2) in order to connect a voltage source (VBulk). The first end of a first switch (S1) is connected to the first input terminal (1). The second end of the first switch (S1) is connected to the first end of a second switch (S2). The second end of the second switch (S2) is connected to the second input terminal (2). A first end of a resonant circuit comprising at least one resonant inductance, at least one resonant capacitor (C1, C2, Cs), and at least a primary winding of a transformer (T1, T1<sub2>—< / sub2>a, T1<sub2>—< / sub2>b) is connected to the second end of the first switch (S1) and to the first end of the second switch (S2). A third diode (D3) is connected in conduction direction from the first end of the first switch (S1) to the first end of a clamping capacitor (Cclamp). A fourth diode (D4) is connected in conduction direction from the second end of the clamping capacitor (Cclamp) to the second end of the second switch (S2). A comparator (5) is connected to the first and second end of the clamping capacitor (Cclamp). The comparator (5) is connected to a pulse control unit (3) in order to control the first and the second switch (S1, S2).

The invention provides a comprehensive evaluating method for manless mining face exploitation geological condition of a thin seam, which belongs to a coal mine geological condition evaluation method. According to manless mining face exploitation characteristic of the thin seam, seven comprehensive evaluation factors of geological structure, coal seam thickness, coal seam stability, coal seam inclination angle, coal seam stiffness, coal seam top / base plate condition and working face lumpiness, which affect manless mining face exploitation of the thin seam. Furthermore 15 base factors are furthermore determined. Furthermore the membership function and weight of each evaluating factor are analyzed. In combination with a fuzzy comprehensive evaluation theory, a comprehensive evaluating model for manless mining face exploitation geological condition of thin seam is constructed; and a comprehensive evaluating result grade and reliability index are determined, thereby realizing comprehensive evaluation for manless mining face exploitation geological condition of the thin seam. The comprehensive evaluating method has important meaning for improving process selection of manless mining face and optimizing parameter, improving coal mining environment and improving safety condition and efficiency of the mining face.

The invention discloses a test method for an automatic memorization and coal cutting self-positioning device of a manless working face coal mining machine and belongs to a method for testing a coal mining machine positioning device. By using the test method, a test experiment on the self-positioning device for automatic memorization and coal cutting of the manless working face coal mining machine is designed according to the self-positioning feature of the automatic memorization and coal cutting of the manless working face coal mining machine; the method comprises the following steps: firstly mounting an IMU (inertia measurement unit) inertia measurement component in the middle of a coal mining machine model, wherein the IMU inertia measurement component comprises three gyroscopes and three accelerometers of which the measurement directions are perpendicular, and a speedometer is arranged on a scraper conveyer in a simulation manner; then supplying research contents and steps of the test experiment, and designing two test lines of linear running and feeding running according to the change of a coal cutting line of the coal mining machine in site; finally analyzing the applicability, the reliability and the precision of the self-positioning device according to an acquired test data result. The test method disclosed by the invention has an important significance on improvement on the design of automatic control on the coal mining machine, improvement on the usability and the working reliability of equipment and prolonging of the service life.

The invention relates to an irrigation method of a closed-loop group flow drop irrigation, preparation and fertilization system, a nutrient liquid preparation method and a fertilization method. The system is divided into an irrigation subsystem, a nutrition liquid preparation subsystem and a control subsystem and is composed of an impounding reservoir, a water division pump, a water source transportation pipeline, a water injection pipeline, a stored nutrient liquid output pipeline, a nutrient liquid storage tank, a nutrient liquid transportation pipeline, a nutrient liquid mother solution storage tank, an acid / base solution storage tank, a self-priming pump, a main controller, a main transportation pipeline, a branch pipe pipeline, a capillary pipeline, a supporting and positioning fixture, a flow stabilizer, a closed-loop group flow drop irrigation pipeline and water droppers, wherein the water source transportation pipeline is connected with the water injection pipeline and the main transportation pipeline; the main transportation pipeline is provided with the branch pipe pipeline; the branch pipe pipeline is provided with the capillary pipeline; the capillary pipeline is provided with the closed-loop group flow drop irrigation pipeline; and the closed-loop group flow drop irrigation pipeline is provided with the water droppers, and one water dropper is arranged on each drop irrigation point. The system disclosed by the invention is scientific in design, reasonable in structure and easy and simple to operate, and has the characteristics of remarkable property, strong function, low price and obvious benefits.

The invention discloses a gear case fault detection method combining vibration and sound wave monitoring. The method is achieved by a vibration signal fault detection system and a sound wave signal fault detection system. The method comprises steps of 1, adhering an accelerometer on the casing of a gear case, installing an acoustic sensor outside the gear case, and installing a speed measurement sensor on a gear rotary shaft; 2, arranging a signal adjusting and data collecting device outside the gear case; 3, processing data collected in the step 2 by a data processor to obtain a vibration waveform and an acoustic waveform; and 4, comparing the vibration waveform obtained after data processing with a normal vibration waveform of the gear case, supplementing comparison data of the vibration waveform by comparison data of the acoustic waveform, and performing final determination. Accordingly, by means of superposition of the vibration signal fault detection system and the sound wave signal fault detection system, the final detected data are enabled to be more accurate, and failure factors of the gear case can be well mastered.

The invention relates to a method for detecting the degradation condition of mulching film source micro-plastics in soil. The method comprises the steps of: taking soil to be detected, screening micro-plastics having relatively large particle diameter after drying, then, adding into saturated NaCl solution, sufficiently oscillating, so that the micro-plastics suspend in the solution, standing, sothat suspension liquid and soil solids are layered, then, pouring the suspension liquid, performing suction filtration, cleaning the filtered micro-plastics by using absolute ethyl alcohol, and then,drying by putting in a vacuum drying box, so that a sample to be detected is obtained; and, taking the sample to be detected, and analyzing change of the micro-plastic carbon-based index, the crystallization degree and the sample surface morphology by using a Fourier infrared spectrometer and a scanning electron microscope, so that the degradation condition is evaluated. The method in the invention is simple, convenient and rapid; the degradation change condition of the mulching film source micro-plastics in the soil can be directly seen; furthermore, the micro-plastic structure does not needto be destroyed; and the ecological risk of the soil after the mulching film source micro-plastics are degraded can be further evaluated through the method in the invention.

The invention provides a device and a method for controlling automatic clothes hanging. The device comprises a clothes hanging machine shell, a lifting device, a laundry rack, a travel limiting switch, a controller, a heating wire, a fan and a disinfection module, wherein the lifting device is mounted between the laundry rack and the clothes hanging machine shell; the heating wire is mounted on the fan and is electrically connected with the controller; the travel limiting switch is mounted in the clothes hanging machine shell and is electrically connected with the controller; the fan is mounted on the clothes hanging machine shell and is electrically connected with the controller; and the disinfection module is mounted on the clothes hanging machine shell and is electrically connected with the controller. The method disclosed by the invention can realize automatic clothes hanging, so that an electric clothes hanging machine is more convenient in daily use and can be operated more reasonably.

The invention discloses a preparing method and application of lotus leaf flavone and lotus leaf alkaloid, which comprises the following steps: adopting rough-extract of lotus leaf, film separating impurity-removing lotus leaf extract or resin separating purifying lotus leaf extract as raw material; adding water to stir into suspension; adsorbing lotus leaf flavone through polyamide; decompressing non-adorbed part to recycle; condensing solvent into lotus leaf alkaloid in the vacuum; washing lotus leaf flavone on the polyamide; removing polar impurity and pigment; eluting through polar organic solvent; decompressing eluent; recycling solvent; condensing into lotus leaf flavone in the vacuum; fitting for prepare fat-reducing, antihyperglycemic, antiviral or oxidation resistance oral agent.

The invention provides a low-voltage transformer area line fault positioning system based on intelligent circuit breakers. The system comprises a low-voltage transformer area distribution network anda monitoring center, wherein the intelligent circuit breakers have selectivity when encountering an electrical fault, and can freely set the tripping time or select different tripping times; the intelligent circuit breakers are used for setting the current-level circuit breaker close to the fault point to be tripped and opened preferentially when a line fault occurs between the two levels of intelligent circuit breakers, and sending the fault information to the monitoring center; and the monitoring center is used for acquiring the fault point information through an intelligent distribution transformer terminal TTU, sending an instruction to control the upper-level intelligent circuit breaker and the lower-level intelligent circuit breaker of the fault point to be opened, controlling an interconnection switch to be connected at the same time, supplying power to a fault-free area, and isolating the fault area. According to the invention, fault positioning of a distribution line of a public transformer area of the national power grid can be realized, the fault points of the transformer area are isolated, power supply is recovered outside the isolation area, the fault response speed isimproved, the fault influence is reduced to the minimum, the equipment is reasonably put into operation, and the equipment loss is reduced.

The invention discloses a slow-release additive for a fertilizer of eucalyptus. The slow-release additive is prepared from the following raw materials in parts by weight: 20-25 parts of straw, 14-16 parts of zeolite powder, 1-2 parts of clay, 1-2 parts of guanylthiourea, 1-2 parts of glycine betaine, 1-4 parts of soluble chitosan, 1.4-2.8 parts of fulvic acid, 20-30 parts of pig manure, 4-8 parts of rape seed cake, 1-2 parts of maize meal, 1-2 parts of polyacrylamide, 0.5-1 part of rhizoma arisaematis, 1-2 parts of radix sophorae flavescentis, 1-2 parts of caulis perillae and 1-2 parts of castor root. According to the slow-release additive for the fertilizer of eucalyptus, provided by the invention, positive ions in cavities and channels have a higher selective ion-exchange property, heavy metal ions and cyanide harmful to animals can be removed, and beneficial metal ions are enabled to be released.

The invention provides an electric car battery deployment system based on an electric vehicle switching mode. The electric car battery deployment system is characterized in that an electric car (1), acharging and switching station network (2), and a battery pack (3) supporting the dynamic configuration capacity are included, the electric car is combined with a customized charging and switching station, power batteries are dynamically deployed according to the application requirements, thus car-electric separation is realized, and the utilization efficiency of the batteries is improved.

The invention relates to a linear filling plug-hanging and cover-hanging cover pressing machine which is used for providing a plug and a cover for a bottle type packing container used for the pharmaceuticals and food industry and is especially suitable for packing oral liquid. The linear filling plug-hanging and cover-hanging cover pressing machine of the invention comprises a bottle feeding-arranging component, a filling component, a cover-pressing component, a bottle discharge thumb wheel component and a machine stand, wherein a plug-hanging component and a cover-hanging component are arranged between the filling component and the cover-pressing component. The invention divides the traditional plug-cover combined type cover hanging component into two separated components, namely the plug-hanging component and the cover-hanging component, thereby putting an end to pollution possibly generated by the traditional hanging cover and preventing the normal running of the machine from beinginfluenced by the malposition of the plug and the cover. The invention has the advantages of reasonable design, novel structure, high degree of standardization and universalization and low productioncost.

The invention discloses a non-contact gravel aggregate grain size and grain shape detector and a detection method. The detector comprises a feeding system, an image acquisition system, an image processing and analyzing system and a display system, wherein the image acquisition system comprises a light source, a background plate and acquisition equipment; the light source is opposite to the acquisition equipment, an image detection region is formed between the light source and the acquisition equipment, the background plate is positioned in the detection region close to the light source, a discharging (feeding) opening of the feeding system is positioned at the upper part of the detection region and is close to the background plate, the image processing and analyzing system is connected to the display system through signals, and the display system is used for displaying results and outputting statements. The detector adopts image processing and digital imaging techniques. When a material falls freely from the detection region, the grain size gradation, needle and flake content, sphericity, length-diameter ratio, grain count and other indexes of the material are precisely measured in real time, and through multiple groups of tests, the multiple indexes are integrated to evaluate the performance of the sample on the whole, the specification and grade of gravel aggregate can be determined automatically, and a detection report is provided.

A process for preparing the extract from capejasmine fruit by use of macroreticular adsorption resin includes such steps as extracting in hydrophilic solvent to obtain coarse extract, membrane separation for removing impurities, adding water to become suspension, adsorbing by macroreticular resin, water washing for removing polar impurities, eluting with the aqueous solution of hydrophilic solvent, vacuum recovery of solvent, and vacuum concentrating.

The invention discloses a testing method for control over an unmanned aerial vehicle. The method is mainly used for testing the level of a operator during control over the unmanned aerial vehicle through a control side, during testing, the control side establishes communication connection with the unmanned aerial vehicle and obtains a preset map selected by the operator, the preset map includes a preset graphic track, and the control side controls the unmanned aerial vehicle to fly along the preset graphic track according to the control operation of the operator, records flying trails of the unmanned aerial vehicle and finally outputs a testing result after comparing the flying trails with the graph of the preset graphic track. Testing is simple and efficient, accuracy is high, and by determining the control level of the operator, the operator controls the unmanned aerial vehicle more safely and reasonably under a prompt.

The invention provides a three-dimensional laser SLAM system based on a 2D laser radar and a control method thereof. The system specifically comprises: a device body, a router, and a computer. The device body comprises: an embedded development board, a DC power supply, a 2D laser radar, a steering gear and a conductive slip ring. The system theory of the invention is combined with reality, and thecomposition is reasonable, concise and convenient. The invention can quickly establish and realize three-dimensional map and positioning, and has low cost, simple operation and convenient use. The entire system can be used not only in a handheld mode but also on a mobile robot. In the indoor and outdoor environment, the invention not only can establish a three-dimensional reconstruction map in real time, but also can calculate the position of a sensor by the SLAM algorithm to realize the real-time positioning function. Compared with the three-dimensional laser radar, the invention has large field of view, 360 degrees without dead angle, and is more suitable for construction in indoor environment, and the cost is lower. In addition, the entire system is also easy to operate and is not affected by ambient light.