130results about How to "Groundbreaking" patented technology

The invention provides a tissue engineering nerve graft based on a biological printing technology and a preparation method thereof. The tissue engineering nerve graft comprises an outer tube and a tube inside scaffolds, wherein trophic factors and / or cells can cover the inner surface and the outer surface. A high-fidelity printing operation is performed according to the actual nerve shape demand by utilizing the biological printing technology, a polymer solution is printed into the specified nerve graft in a three-dimensional way by using an ink-jet printer by adjusting the sizes and the quantity of the jet nozzles of the ink-jet printer, the distances from the jet nozzles to a bottom layer and the pulse frequency of a supercharger and writing a control program of specific printing, and the specified nerve graft is applied to treatment of peripheral nerve defect and spinal cord injury.

The invention discloses an intelligent train traction fault big data abnormality detection and recognition method. The method includes: collecting working signals of traction equipment of an intelligent train in real time; sampling the working signals to acquire a sampling dataset; using an isolated forest abnormal value quick detector to quickly detect the sampling dataset, and acquiring remarkable abnormal point in the working signals; building a Hampel sliding window identifier filter according to the remarkable abnormal point, and processing the sampling dataset to acquire a sampling dataset after being processed; acquiring a training sample set, and training a classifier based on a slack supporting vector machine by taking processed sampling data of a training sample as input and corresponding fault type as output; using a traction fault diagnosis classifier acquired by training to diagnose the sampling dataset after being processed and acquired in the step 3, and detecting faulttype of tiny and suspicious fault in the working signal S. By the method, fault detection efficiency and diagnosis accuracy of the train traction equipment are improved.

The invention relates to beaded electrospun nanofiber immobilized saccharomycete and a preparation method thereof. Nanofiber comprises electrospun polymer or macromolecules, a solvent and a saccharomycete; prepared mixed solution is placed in an injector and is spun with an electrospinning instrument, microorganisms are introduced into the nanofiber by dispersion of the saccharomycete in a spinning solution, the advantages of the nanofiber such as high specific area, high porosity, large length-diameter ratio and bulkiness and porousness are combined, in-situ immobilization is achieved for saccharomycete cells, an active organic / microorganism composite is obtained, and a function similar to a multi-enzyme bioreactor is enabled. A product and preparation method of the invention have the advantages such as high processing efficiency, high reacting speed, ease of control, high antifouling capacity, continuous reusability, and ease of product separation. The beaded electrospun nanofiber immobilized saccharomycete is applicable to the fields such as biological catalysis, filtering and adsorption, drug delivery and tissue engineering.

The invention relates to a nano catalyst and a preparation method thereof, in particular to a titanium dioxide nanotube carried palladium nano catalyst and a preparation method. The method comprises the steps as follows: preparing a titanium dioxide nanotube array electrode first, depositing palladium nanoparticle on the titanium dioxide nanotube electrode through chemical deposition, and preparing an electrochemical post-processing solution; adopting a three-electrode electrochemical electrolytic cell system, and adding the electrochemical post-processing solution in an electrolytic cell, wherein the three electrodes include a working electrode, an auxiliary electrode and a reference electrode, the working electrode is a titanium dioxide nanotube array carried palladium electrode, and the auxiliary electrode is a palladium sheet; adopting an electrochemical program potential step processing method, wherein the upper limit of potential is 0.5-5.5 volt, the upper limit of time is 10-300 seconds, the lower limit of potential is (-4.5)-(-0.5) volt, the lower limit of time is 10-300 seconds, and the processing time is 0.1-6 hours; and taking out the working electrode, flushing and then obtaining the product. The titanium dioxide nanotube carried palladium nano catalyst can be used for preparation of fuel cells and electric organic synthesis as an electro-catalyst.

The invention provides a system and a technology for environmentally-friendly comprehensive treatment of iron making blast furnace gas. The system comprises a blast furnace top uniform pressure gas full-recovery system, a gravity deduster and a dry bag filter, and further comprises a blast furnace gas hydrolysis tower and a blast furnace gas desulfurization tower. The blast furnace gas goes through the gravity deduster and the dry bag filter, and then is conveyed into the blast furnace gas hydrolysis tower, COS in the blast furnace gas is hydrolyzed by the blast furnace gas hydrolysis tower toform H2S; the treated blast furnace gas goes through a TRT / or pressure regulating valve group, and then is conveyed into the blast furnace gas desulfurization tower, and the blast furnace gas desulfurization tower desulfurizes and dechlorinates H2S and Cl<-> in the blast furnace gas; and the treated blast furnace gas is conveyed into a blast furnace gas user or is stored in a gas cabinet througha gas pipe network. The integral treatment technology which integrates blast furnace gas desulfurization, dechlorination and blast furnace top uniform pressure gas recovery has a high integration degree, and can run stably and reliably.

The invention discloses a binocular AR (Augmented Reality) head-mounted device scene depth adjusting method. A mapping relationship between an equivalent center distance dn between a left group of effective display information and a right group of effective display information on an image display source and a distance Ln between a virtual image and a human eye is preset in the head-mounted device; when a user watches the external environment via the head-mounted device, the head-mounted device acquires the distance Dis between a target object and the human eye; Ln is assigned as Dis, an equivalent center distance ds between a left group of effective display information and a right group of effective display information corresponding to the Dis is acquired in a distance mapping relationship delta; and with ds as the equivalent center distance, a to-be-displayed information source image for the virtual information is respectively displayed on the image display source in a left-right mode. Correspondingly, the invention also discloses a binocular AR head-mounted device capable of automatically adjusting the scene depth, virtual information is precisely stacked near a human eye fixation point, the virtual information and the environment are highly integrated, and augmented virtual reality in the true sense is realized.

The invention provides a radio interference source direction-finding and positioning method based on a particle filter algorithm, and belongs to the technical field of radio direction-finding and positioning. The method comprises the steps of selecting a position coordinate of an interference source objective to be a state variable and a direction of arrival to be an observational variable; generating an initial particle assembly by using historical measuring data; calculating and normalizing the weights of all samples in the particle assembly; setting thresholds and re-sampling; weighting and calculating target state estimated values; screening the target state estimated values; sampling and generating a new sample to enter next circulation calculation; finally outputting an estimated target status value. According to the method provided by the invention, under the precondition that a hardware system of an original radio monitoring car is not changed, the particle filter algorithm is used in a direction-finding and positioning system of the radio mobile monitoring car, therefore the precision of finding radio interference sources in a complicate urban environment can be greatly improved, a more perfect and accurate measurement method can be provided to radio management operation, and the creative social application value can be realized.

The invention discloses artificial skin based on a piezoelectric material and a thermistor material. The artificial skin comprises a signal acquisition part and a circuit part, wherein the signal acquisition part comprises a device protecting layer and a compound signal acquisition layer arranged on the lower surface of the device protecting layer; the circuit part comprises a front-end circuit and a rear-end circuit; the rear-end circuit can be a first rear-end circuit or a second rear-end circuit. The invention further discloses a method for detecting pressure and temperature by use of the artificial skin. The artificial skin is simple in structure, easy to miniaturize and integrate, simple and strict in testing method and suitable for manufacturing artificial smart skin.

The invention discloses a device and method for accurately and visually testing soil displacement in seismic piping destroy. The device comprises a water supply device and a transparent model box. Thetransparent model box is lower than the water supply device. The bottom of the transparent model box is provided with an interface communicated with the water supply device. A plurality of pore pressure measuring devices are equidistantly disposed in the transparent model box. The device also comprises a shaking platform for storing the transparent model box, a water head adjustment mechanism foradjusting water head height of the water supply device, and a digital observing system. Through combination of saturated transparent soil samples and a particle image processing technology, the problem that the soil internal deformation and displacement field cannot be continuously measured and are invisible in soil piping destroy under action of earthquake is solved so that the piping destroy process visualization is realized under action of earthquake.

The invention discloses an on-orbit test method for space-borne sliding spotlight SAR aiming precision. The method comprises the following steps: choosing a ground control point whose absolute position coordinate is Ptarget0; according to the current orbital position of the satellite PSatellite0, forecasting the orbital position PSatellite1 (WGS84 coordinate system) of the control point at the covering time; performing calculations to the SAR imaging related parameters; based on the imaging parameters, calculating the relative position PRelative0 of the control point in an imaging band; covering by the satellite and irradiating to the known control point and downloading data; receiving the data by a ground application system and carrying high precision Doppler center computing and imaging processing; conducting geometrical positioning to the image by the ground application system based on the navigation data and the ephemeris parameters; intercepting the image according to the imaging bandwidth design value; and identifying the already known control point on the image; calculating the relative position coordinate PRelative1 in a scene. The invention can effectively solves the on-orbit test and evaluation on the space-borne sliding spotlight SAR aiming precision and can effectively ensure the accuracy for the user to obtain the SAR image of a required target.

The invention provides an imaging quality improving method of a high-resolution spaceborne SAR. The method comprises the following steps that 1) imaging quality improving demands are analyzed and imaging quality indexes are arranged on the basis of a high-resolution SAR image application; 2) optimized imaging quality indexes are decomposed and distributed; 3) measures for improving the imaging quality are provided; and 4) the imaging quality improving effect is evaluated on the basis of full-link simulation. The method provided by the invention is clear in processes and easy to realize, can guide general design of the spaceborne SAR, is innovative, and is suitable for imaging quality improving researches of other types of SAR satellites.

The invention discloses a binocular AR (Augmented Reality) head-mounted device information display method. On the premise of presetting mapping relations fc-s and fd-i in the head-mounted device, the position of a target object on an image photographed by a camera is acquired in real time through an image tracking method, the position is mapped to a screen coordinate system of the head-mounted device, and a left image / right image display position is calculated; and then, through a monocular vision distance measurement method, a camera imaging ratio is used for calculating the distance between the target object and the camera in real time, the distance between the left image and the right image is thus calculated, and the display position of an image at the other side is further calculated. Correspondingly, the invention also provides a binocular AR head-mounted device information display method and an augmented reality information display system. The method of the invention is high in reliability and low in cost. The traditional field depth adjustment starts from changing the image distance of an optical component, the traditional thinking is broken, the optical device structure is not changed, field depth adjustment is realized through calculating the left image / right image display position, creativity is realized, and compared with a method of changing an optical focal length, the method is more practical.

The invention relates to an electric power building or construction technology, in particular relates to a cable well with acid-alkali resistance and durability. The cable well comprises a box-shaped well body, wherein the well body comprises an internal metal frame and a shell, wherein the shell is arranged at the outer part of the metal frame, is made of plastics and is provided with a cable inlet, a cable outlet and a manhole or a hand hole; reinforcing ribs are uniformly arranged on the inner surface and / or the outer surface of the shell in a staggered manner; and due to adoption of the structure with the internal metal frame and the external plastic shell, the metal frame supports the shell, and simultaneously, the reinforcing ribs distributed on the surface of the shell in a staggered manner further guarantees the structural strength of the shell. The cable well has the advantages that the structural strength is reliable; and simultaneously, the plastic shell and the reinforcing ribs on the shell enable the shell to have certain flexibility, and the vibration and the pressure can be absorbed and buffered. The cable well has the characteristics of high water discharging efficiency, acid-alkali-salt corrosion resistance, suitability for use under various geological conditions, strong earthquake resistance and long service life, and obtains great economic and social benefits.

The invention relates to a production method of a multi-grain and color-varied PU film shell, which aims at forming grain on the surface of a plastic shell. Firstly, patterns are processed inside a die cavity of a die, but carving patterns in the die cavity is not only expensive but also difficult; in addition, some patterns can not be carved. The production method of the invention mainly select a PU, polyurethane film shell with demand grain and color, and the film shell is put inside a preset shaped thermoplastic die and is pressed into shell surface shape through the thermoplastic die, and then a PU molding body with the shell surface shape and surface patterns and color is moved to an ejecting molding die, fused plastic materials ejected are combined with the PU molding body, thus forming the shape of the die cavity. After being cooled and taken out, a colloid shell with surface pattern and color is obtained.

The invention discloses an artificial intelligence skin with temperature, humidity and pressure detecting functions. The artificial intelligence skin comprises a signal collecting part and a circuit part, wherein the signal collecting part is composed of a humidity sensitive material layer, a first electrode layer, an insulating layer, a second electrode layer, a thermistor material layer, a thirdelectrode layer, a flexible material layer and a fourth electrode layer which are sequentially arranged from top to bottom; the circuit part comprises a front end circuit and a rear end circuit. Theinvention further discloses a method of using the artificial intelligence skin for detecting temperature, humidity and pressure. The artificial intelligence skin is simple in structure and easy to miniaturize and integrate, and the testing method is concise and rigorous. The method is suitable for manufacturing the artificial intelligence skin.

The invention discloses a slab manufacture quality monitoring pre-warning system package device, and relates to the technical field of quality monitoring pre-warning. The device comprises a database unit, as well as a data collection unit and a pre-warning report unit which are connected with the database unit, wherein the data collection unit is used for collecting each quality monitoring parameter in a slab producing process, and transmitting the quality monitoring parameter to the database unit; and the database unit is used for determining whether the quality monitoring parameter exceeds the threshold of a standard design parameter, and transmitting the quality monitoring parameter to the pre-warning report unit if the quality monitoring parameter exceeds the threshold of the standard design parameter. By utilizing the device, real-time dynamic monitoring of the slab manufacture process and timely quality pre-warning are realized for the first time in the slab precise manufacture industry, critical data can be reviewed, regenerated and re-derived by adopting an Internet of things technology, and powerful assurance is provided to slab construction and operation maintenance, thus the device has significant meanings in assuring high-speed rail quality, constructing digital railways and improving the railway operation intelligent level.

The invention discloses a blast furnace gas dechlorination and desulfurization system and process. The system comprises a blast furnace gas dechlorination tower and a blast furnace gas desulfurizationsystem, blast furnace gas passes through a gravity dust collector and a dry bag-type dust collector and then is conveyed into a blast furnace gas dechlorination tower, the blast furnace gas dechlorinated by the dechlorination tower enters a blast furnace gas desulfurization system through a TRT or a pressure regulating valve bank, a catalytic tower in the desulfurization system catalyzes COS in the blast furnace gas, and the COS is converted into H2S; the blast furnace gas treated by the catalytic tower is conveyed to a dechlorination tower of the blast furnace gas dechlorination system, andH2S in the blast furnace gas is desulfurized by the blast furnace gas dechlorination tower; and the treated blast furnace gas is transmitted to a blast furnace gas main pipe of a factory through a gaspipe network for each user to use. The blast furnace gas dechlorination and desulfurization treatment process is integrated, the problem that SO2 in flue gas exceeds the standard after the blast furnace gas is combusted can be effectively solved, and in addition, corrosion of TRT blades and corrosion of blast furnace gas pipelines are greatly delayed through the dechlorinated blast furnace gas.

The invention relates to a drilling tool for a two-way soil-cement mixed pile. The drilling tool comprises an inner drilling rod, an outer drilling rod, an inner drilling bit and an outer drilling bit, wherein a water gas injection device is arranged at the upper part of the outer drilling rod, a cavity between the outer drilling rod and the inner drilling rod is set as a channel enabling water gas to descend, a water gas injection spray nozzle is arranged in the position of an outer drilling core pipe above a lower layer of mixing blades of the outer drilling head, the water gas injection spray nozzle is provided with a spray pipe which is arranged perpendicular to the outer drilling core pipe, spray ports are arranged at the two ends of the spray pipe, a valve cavity is arranged in the middle of the spray pipe, a floating spherical valve core is arranged in the valve cavity, and the middle of the valve cavity is connected with the outer drilling core pipe through a connecting pipe. When a pile is made of cement flour, the quality problem of the pile formed at the upper part due to low water content in a crust layer on the earth surface can be solved by water injection; when the pile is made of cement grout, the quality problem of the pile formed at the deep part due to the lack of dry curing at the deep part of the file can be solved by gas injection; the full pile length pile quality of the two-way soil-cement mixed pile can be ensured; and simultaneously, the drilling pipe is less prone to pipe blockage and can increase the mixing times of the cement flour or the cement grout which is sprayed out and greatly improve construction efficiency.

The present invention relates to a gene fusion mutation library construction method, a gene fusion mutation detection method, a gene fusion mutation detection device, computer equipment and a computerstorage medium. The above-mentioned gene fusion mutation library construction method and the gene fusion mutation detection method and device are based on a DNA probe hybridization capture multi-geneRNA targeted sequencing technology, through a fusion gene capture probe hybridization capture target fusion gene, the gene fusion mutation library is constructed, the library can be used for high-throughput sequencing and bioinformatics analysis can identify core genes and partner genes there of constitute breakpoints. Furthermore, the present invention also designs a quantitative analysis methodof the fusion gene, a mutation ratio of the fusion gene can be obtained by calculation, accurate expression value of the fusion gene can be further obtained, and the quantitative analysis method of the fusion gene is pioneering and solves a quantitative analysis problem of using a NGS method to detect the fusion gene.

The invention discloses artificial intelligence skin which comprises a signal acquisition part and a circuit part. The signal acquisition part includes a humidity sensitive material layer, a first electrode layer, an insulation layer, a second electrode layer, a thermistor material layer, a third electrode layer, a piezoelectric layer and a fourth electrode layer which are sequentially arranged from top to bottom; the circuit part includes a front-end circuit and a rear-end circuit. The invention further discloses a method for detecting temperature and humidity and pressure by the aid of the artificial intelligence skin. The artificial intelligent skin is simple in structure and easy for miniaturization and integration, and the detecting method is concise and rigorous; the method is suitable for manufacturing the artificial intelligence skin.

The invention provides a filtrate reducer for oil-based drilling fluids and a production method thereof. The production method is characterized in that humic acid undergoes surface modification and the humic acid is grafted with an alkyl group of long carbon chain, and a product which has oleophylic emulsifying property and ammonium salt undergo polymerization so as to obtain the required product. The production method comprises the following concrete operations: stirring a certain amount of brown coal, caustic soda and water and reacting for a period of time, and extracting a humic acid solution; preparing grafted humic acid from the obtained humic acid solution and octadecylamine and octadecyl trimethyl ammonium chloride; preparing fatty acid amide from oleic acid, diethanolamine and concentrated hydrochloric acid; and preparing humic acid acetamide, dispersing, filtering and drying to obtain a finished product. According to the method, humic acid is modified to be grafted with the alkyl group of long carbon chain, and then the humic acid filtrate reducer has remarkable lipophilicity, can be dissolved or dispersed in oil and can be directly used in water-in-oil drilling fluids. Humic acid and amine are combined firmly, and high temperature resistance is strong. The product has a certain emulsification capability and good filtration reduction effects. The production method is simple, and the environment is not polluted.

The invention discloses a simulation method for a base structure in a soil body and the movement visualization of the soil body under an earthquake action, and belongs to the field of rock and soil test mechanics. Moving and laser speckles of transparent soil and a model pile (6) in a transparent soil model box (7) positioned on a vibration table (3) under the irradiation of a fan-shaped laser generator (1) are shot by utilizing a high-speed digital camera (4), and the strain of movement of transparent soil particles is obtained through a computer processing system, so that the movement and the deformation of a pile foundation model are obtained.

The invention discloses an automobile braking energy recovery hybrid system experiment bench, which comprises a control cabinet, an energy supply system, a commutator, a data acquisition system, a hydraulic braking energy recovery system and a hub motor braking energy recovery system, wherein the energy supply system is respectively connected with the hydraulic braking energy recovery system and the hub motor braking energy recovery system; and the energy supply system comprises a motor and a flywheel, the motor is connected with a spindle, one end of the spindle is connected with a first electromagnetic clutch and the other end is connected with a flywheel shaft sleeved with the flywheel, and the spindle is sleeved with a braking disc. When the energy supply system and the hydraulic braking energy recovery system are connected and braked through a second electromagnetic clutch, the flywheel drives a pump / motor to rotate, and energy is punched and stored to a hydraulic accumulator; and when the energy supply system and the hub motor braking energy recovery system are connected and braked through a third electromagnetic clutch, the flywheel drives a hub motor to rotate to generate power, and the generated power is stored to a super capacitor.

The invention discloses a method of adjusting a virtual image projection distance and / or a virtual image projection angle on a binocular head-mounted device. Through adjusting an equivalent center distance of a left group and a right group of effective display information on a head-mounted device image display source, the virtual image projection distance is adjusted; and through translating to change the display positions of the left group and the right group of effective display information on the image display source, the virtual image projection angle is adjusted. The traditional field depth adjustment starts from charging the optical original image distance, the traditional thinking is broken, the optical device structure is not changed, the field depth adjustment is realized through adjusting the equivalent center distance of the left group and the right group of effective display information on the image display source, creativity is realized, and compared with the method of changing the optical focal length, the practicability is realized. In addition, the traditional method of changing the field depth in a focal length adjusting mode, adjustment on a virtual image angle can not be realized. Through adjusting the display positions of the left group and the right group of effective display information, adjustment on the virtual image angle can be realized, and creativity is realized.

The invention discloses a porous catalyst used for photo-electrolysis water oxygen evolution reaction, which belongs to the technical field of oxygen evolution photo-electrolysis porous catalysts, and also provides a preparation method of the porous catalyst. The porous catalyst used for photo-electrolysis water oxygen evolution reaction has amorphous or crystallization characteristic, has the chemical formula of K(CoxNi[1-x])PO4, wherein x is equal to 0-1, and the structure of the porous catalyst has a plurality of crystal water molecules. The porous catalyst is prepared by using a two-stage precipitation method. The porous catalyst and the preparation method have the following advantages that the oxygen evolution reaction electrode catalysts and the composite electrodes with excellent performance are prepared by cheap raw materials and simple steps, thus the expensive Ir and Ru series compounds are not required.

The invention relates to a drilling process for deep hole machining for a hard material. A pre-drilling process is carried out at first, a pre-drilling bit is chosen to carry out pre-drilling on hole positions of a product, and during a pre-drilling process, tool setting is carried out at first, a pre-drilled hole with a depth of 0.5mm is machined for all the hole positions after the tool setting, foundations of the machined hole positions are moved by 0.5mm up and down after the operation is completed, the operation is repeated for many times, depths of 1-4mm, of the pre-drilled holes, are guaranteed, and pre-drilling operation is completed. The drilling process disclosed by the invention has the characteristics of avoiding breakage of the drilling bit, reducing a wear degree of the drilling bit and then lowering a production cost, omitting a wire wrapping process and then greatly increasing a machining speed of drilling, avoiding different hole diameters and then ensuring accuracy of the product, avoiding offset of the hole positions, and reducing consumption of the drilling bit and then prolonging the service life of the drilling bit, and the like.

The invention discloses socks for preventing and correcting hallux valgus. Each sock comprises a sock body part, a sock opening and a toe part, wherein the toe part is at least provided with a first toe part allowing the hallux to be put in, and when the sock is put on the foot, the first toe part is located on the inner side of the foot. The sock is characterized in that when the sock is put on the foot, at least one longitudinal rubber string or band extending from the top end of the first toe part to the foot arch is arranged at the positions, located on the inner side of the foot, of the first toe part and the sock body part, and the at least one longitudinal rubber string or band is in T-shaped connection with a horizontal rubber band extending from the center of the joint connecting the hallux with the metatarsus to the foot arch. According to the socks for preventing and correcting the hallux valgus, the worries of wearing high-heeled shoes and pointed shoes can be eliminated, the hallux valgus can be effectively prevented, slight hallux valgus can be corrected, severe hallux valgus can be prevented from getting worse and kept stable, and the degree of the hallux valgus can be reduced gradually after long-term use.

The invention discloses a satellite-borne SAR target location precision index ground assessment method, and the method comprises the following steps: 1, sorting error factors which affect the target location precision; 2, carrying out the analysis of the impact on modeling from error factors; 3, carrying out the distribution and budgeting of location precision indexes; 4, carrying out the Monte Carlo simulation test of the location precision based on orbit simulation data; 5, carrying out the statistics of a simulation result, and estimating the location precision indexes. The invention firstly proposes the brand-new satellite-borne SAR target location precision ground assessment method and flow, and is innovative. In particular, the invention proposes a Monte Carlo simulation method for verifying the target location precision, and the Monte Carlo simulation method improves the accuracy of location precision estimation. The method provided by the invention is clear in flow, is easy to implement, and achieve a guide effect for a general designer for a satellite-borne SAR system.

A watermelon maturity monitoring device is mainly composed of a detector (1), an elastic sling (2), a net bag (3) and a support (4). The watermelon maturity monitoring device is characterized in that the detector (1) is installed on the elastic sling (2) and stretches and contracts along with the elastic sling (2), when matured, a watermelon falls due to weight, and the elastic sling (2) rebounds and triggers the detector (1) to act to remind people of watermelon maturity; one end of the elastic sling (2) is connected with the net bag (3) containing the watermelon, and the other end of the elastic sling (2) is connected with the support (4). The mode of monitoring watermelon maturity through weight change is lossless watermelon monitoring, and meanwhile watermelon maturity is monitored in time in the watermelon growth process and is judged accurately in time. The watermelon maturity monitoring device is first application of the weight method monitoring technology in the watermelon growing process and has the advantage of creativity.