70results about How to "Precise prevention and control" patented technology

The invention discloses an epidemic infectious disease virus field visualization method based on space-time trajectory data. The method comprises the following steps: S1, airspread infectious diseaseurban diffusion modeling; s2, collecting, cleaning and processing space-time trajectory data and infection attack data of virus carrying crowds; s3, obtaining position semantic information of a viruscarrier; s4, calculating the virus distribution density by taking the virus carrier as the position center; s5, mapping the time, space and virus distribution density data of the virus carrying population; and S6, constructing an epidemic infectious disease virus field cloud platform based on temporal GIS. The invention further provides an epidemic infectious disease virus field visualization system based on the space-time trajectory data. According to the method, space-time trajectory data and infection attack data of virus carrying crowds are processed into a virus distribution density map with the virus carrier as the position center, spatial position semantic information is added and mapped to a temporal GIS, and an epidemic infectious disease virus field is visually processed.

The invention discloses a joint treatment method for gas and coal spontaneous combustion in night distance seam mining. Gas gushing out of a stope working face is treated through a 'two intakes and one return' working face ventilation system, long drill holes in the trend of a fissure zone are utilized to replace a high pumping lane to extract gas gushing out of residual coal of night distance seams and a coal seam, thus corner gas overflow on the stope working face is avoided, and the gas extraction project cost is reduced. Gas injecting pipelines are arranged on a belt gate roadway of the stope working face to continuously inject liquid carbon dioxide into a goaf to restrain spontaneous combustion of the residual coal of the coal seam, low-position drill holes are formed in a track gateroadway of the stope working face to inject nitrogen to prevent spontaneous combustion of the coal of the night distance seams after extraction collapse, thus a coal spontaneous combustion three-dimensional preventing and control system of the goaf is formed, float coal spontaneous combustion in the goaf is accurately prevented and treated, finally, the purpose of joint treatment for gas and coalspontaneous combustion in night distance seam mining is achieved, the coal recovery rate of coal and the working face stoping continuous speed are increased, and safe production of the tope working face is guaranteed.

The application relates to a method and system of prevention and control of infectious diseases. The method comprises a step a of identifying a high risk area of an infectious disease according to local infection risk data; a step b of identifying users visiting the high risk area according to regular mobile phone data; a step c of working out space-time angle travel prevention and control measures according to activity level data of a disease infection source, and sending corresponding travel intervention information to the users visiting high-risk area according to the space-time angle travel prevention and control measures. According to the application, as the travel prevention and control measures based on the space-time angle are established within a city and the personal customized travel intervention information is sent to the users to guide the users in adjusting the travel time and space, imported risks of the high risk area can be reduced.

The invention discloses a method for calculating oil field casing damage under the fluid-solid coupling effect. The method is based on a fluid-solid coupling theory, research is performed through a method of combining indoor experiments, numerical calculation and theoretical analysis; a seepage flow mathematical model in the petroleum reservoir exploitation process and a stress field calculation mathematical model are established according to the fluid mechanics theory and the elastic-plastic theory, and an elastic-plastic constitutive model of reservoir rock is established according to indoor experiment analysis; and a fluid-solid coupling mathematical model is established by means of the effective stress principle. According to the fluid-solid coupling mathematical model and the solving thinking, a numerical simulation method for reservoir fluid-solid coupling ground stress prediction and casing damage prevention is established on the basis of existing commercial software; with a Qudi oilfield typical block as an example, the concrete method for oil field casing damage prediction and prevention under the fluid-solid coupling effect is given, detailed measures are provided, and the method is of great application value for improving oil field casing damage conditions and prolonging service life of an oil well.

The invention relates to a harmonic wave quantitative measurement method of a power system. For the current and voltage information of the power system, according to the time sequence and the synchronous equal-time-interval following harmonic wave three-dimensional direction, namely the harmonic wave amplitude and the dynamic variation features of the frequency along with the time, the amplitudes and frequencies of various orders of harmonic waves, the three-dimensional parameter and the three-dimensional curve of the time are obtained through measurement, the amplitude time curve and data of the various orders of three-dimensional following harmonic waves, the frequency time curve and data of the various orders of harmonic waves and the amplitude-versus-frequency curve and data of the various orders of harmonic waves are obtained through measurement, and the harmonic features and data of the power system are obtained through measurement in a quantitative mode. According to the harmonic wave quantitative measurement method of the power system, the harmonic wave impedance and harmonic resonance amplification feature of a power grid are accurately measured.

The invention discloses a heart health quality early warning system and an early warning method thereof. The system comprises an analysis and calculation module used for calculating an individual heart health quality assessment value by applying a regression analysis method and a perspective and retrospective investigation and analysis method according to a pre-established heart health quality index data model, a search module used for searching out a health quality level corresponding to the individual heart health quality assessment value in a heart health quality classification standard and obtaining an individual heart health quality level, and an output and early warning module used for outputting the individual heart health quality level and performing early warning prompting. According to the heart health quality early warning system, the hearts of healthy and sub-healthy individuals and individuals with heart diseases can be analyzed and predicted, heart quality events can be discovered early and prevention measures can be proposed, so that the heart event risk is lowered.

The invention relates to a crop disease on-condition control simulation model system based on crop acoustic emission mechanism, wherein an acoustic emission sensor is arranged on the stalk of a crop plant, the acoustic emission sensor uses an acoustic emission capture card to input the collected data in a computer through a PCI interface; the computer performs statistical analysis to the crop disease stress acoustic emission signals, builds a mathematical model of acoustic emission signals, extracts the crop disease stress acoustic emission source as point source, performs frequency-domain analysis and uses two paths of acoustic emission sensors to perform identification and positioning to the sound source according to the acoustic emission signals in the stalk transmission attenuation process; and a temperature-humidity sensor, a light sensor and the like are connected with the computer through a wireless sensor network, and a relay controlling a water container and an electromagnetic valve are used to irrigate the crop plant through a pipeline. The invention provides the mathematical model of acoustic emission signals; time-frequency analysis is adopted to provide the time-frequency feature of crop disease stress acoustic emission signals, and the wavelet technology is used to extract ultrasonic frequency signals.

The invention discloses a method for locomotive anticollision using on-board optical detection mechanism combining with auxiliary image pickup. The method comprises the following steps: extracting image information of calibration zones of a steel rail track and an entrance through the on-board optical detection mechanism and an auxiliary image pickup mechanism; analyzing and determining extracted image information; and controlling operation of a locomotive. The invention also discloses a device for locomotive anticollision using on-board optical detection mechanism combining with auxiliary image pickup. A detection base station formed by far infrared or CCD and image identification, data processing, fault early warning, and consist information sending technologies, and full coverage detection of rail tracks without blind areas is realized. The ground detection base station is static, and aims at the detected zone of steel rail track to determine whether an external object invades. The device sends fault instructions and monitoring images to the locomotive through a wireless bridge technology, so as to realize locomotive anticollision. The device can still detect required safety distances at night and in rainy, snowy, and foggy weather conditions, and provides important guarantee for traffic safety.

The invention discloses a forest fruit trunk-injection insecticide and a preparation method and application thereof, and relates to the technical field of insect damage prevention for forest fruits. The forest fruit trunk-injection insecticide is prepared from the following components in parts by mass: 0.1 to 5 parts of abamectin Tech, 3 to 20 parts of imidacloprid Tech, 6 to 20 parts of surfactant, 5 to 20 parts of stabilizing agent, 1 to 6 parts of leaf photosynthesis promoter, and 22 to 85 parts of water. The forest fruit trunk-injection insecticide is valid in the whole year once being used; compared with the existing insecticide for spraying application, the forest fruit trunk-injection insecticide disclosed by the invention is good in effect, time-saving and labor-saving; the environmental pollution is avoided. The preparation method is simple in technology and low in cost; the application cannot be affected by the weather and the heights of the trees; the insecticide can completely enter plants, does not injure natural enemies, and can be used for a long time.

The invention relates to a system and method for detecting plant diseases based on near field acoustic holography technology. According to acoustic emission phenomena of plants and on the theoretical basis of the near field acoustic holography technology of a distributed source boundary point method, a cylindrical surface-spherical surface non-conformal-surface acoustic holography experiment model is established, and simulation experiments on single sound sources and double sound sources are respectively carried out. By changing of parameters, in the model, such as the holographic cylindrical surface radius, holographic measuring point number, and node number on reconstruction spherical surface, distance between fictive particular solution sources and nodes on the reconstruction spherical surface, and the like, feasible experimental parameters are obtained. Simulation results show that the method can accurately identify and locate the position of an acoustic emission source. On the basis of the experimental parameters, a signal acquisition acoustic holography experiment system which adopts DSP as a core is established, and data analysis and processing are carried out by an upper computer which adopts Labview as a software platform. The system and method for detecting plant diseases based on the near field acoustic holography technology adopt plant acoustic emission signals as important sensitive information to know the growth states and disease-affected situations of the plants, and through studies of the acoustic emission signals based on the near field acoustic holography technology of the distributed source boundary point method, the diseases can be timely discovered and identified, and a new way and the new method for the prevention and control and detection of the plant diseases is provided.

The invention discloses an intelligent temperature measurement and disinfection security check door, and belongs to the technical field of security check equipment. The technical problem about singlefunctions of security check doors is solved. According to the solution, the upper parts of two side plates are fixedly connected through a top plate, the lower parts of the two side plates are fixedlyconnected through a bottom plate, the bottom plate comprises a fixed bottom plate and a disinfection ground mat, and movable trundles are movably arranged between the lower parts of the side plates and the ground; and an electric control box is arranged on the inner wall of the side plate on any side, a face recognition temperature measuring device and a hand washing disinfection device are arranged on the outer side wall of the electric control box, the face recognition temperature measuring device comprises a display screen, a face recognition camera, an infrared temperature measuring camera and a voice broadcaster, and the hand washing disinfection device comprises a shell, a liquid storage bottle, an inductor and a liquid discharging valve. Advanced face recognition infrared temperature measurement, voice broadcast, over-temperature prompt alarm, real-time data recording, attendance statistical report generation, hand cleaning and sterilization, sole cleaning and disinfection andother intelligent technologies are integrated, people suffering from fever can be rapidly screened, and close-range contact with temperature measurement personnel is reduced.

The invention relates to big data processing, is applied to the field of smart supervision of smart cities, and provides an epidemic situation monitoring method and device, an epidemic situation prevention and control platform and a readable storage medium. The method comprises the following steps: acquiring multiple pieces of epidemic situation data based on a public end, and acquiring multiple pieces of epidemic situation level information according to preset epidemic situation feature levels; acquiring recheck level information generated by rechecking the multiple pieces of epidemic situation level information, and determining to-be-monitored data, to-be-early-warned data and an early-warning level according to each piece of recheck level information; and continuously monitoring each piece of the to-be-monitored data, and giving an early warn to personnel corresponding to each piece of the to-be-early-warned data according to each early warning level. In addition, the invention alsorelates to a blockchain technology. The epidemic situation data, the epidemic situation level data, the recheck level data, the to-be-monitored data, the to-be-early-warned data and to-be-early-warned levels can be stored in a blockchain. According to the invention, rapid and safe collection of health information of each resident is realized, accurate classification and early warning are realized, and accurate monitoring and effective prevention and control of epidemic situations are facilitated.

The invention discloses a method for monitoring phenanthrene pollution in water through a gene P4501A (CYP1A). Fishes serve as biological samples for monitoring water pollution, and the gene CYP1A of the fishes serves as a sensitive biomarker for monitoring the phenanthrene pollution in water. The method has the advantages that the gene CYP1A serves as the sensitive biomarker for monitoring water pollution, the degree of water pollution is monitored by testing the relative transcript level of the gene CYP1A, and the method can sensitively reflect whether water is polluted or not and the degree of water pollution and even can sensitively detect the water pollution of a micro-pollution source; the perniciousness and the damage degree of phenanthrene pollution can be sensitively monitored from the biological angle, and an accurate, quick and scientific method is provided for water ecological environment monitoring, toxicology diagnosing, regulating, preventing and treating.

The invention discloses a method for positioning activities of Entomophthora in grain piles of grains stored in a grain bin. According to characteristics of grain piles, monitoring layers are respectively selected and set in the vertical direction of the grain piles; carbon dioxide gas concentration monitoring points are arranged at certain interval on each monitoring layer; and through periodically detecting changes of the carbon dioxide gas concentration of each monitoring point and according to distribution of grain pile carbon dioxide gas concentration, key points and relative points of activities of Entomophthora in the grain piles are determined and activity spaces and parts of Entomophthora in the grain piles are positioned.

The invention discloses an inverse time current limiting electrical fire prevention and control device and method. The device comprises a control unit, a solid-state switch, an analog signal conditioning circuit and a current detection unit used for detecting instantaneous alternating current information of the protected loop. The output end of the current detection unit is connected with the input end of the control unit through the analog signal conditioning circuit. The output end of the control unit is connected with the solid-state switch. The protected loop is connected with a power supply through the solid-state switch. The device and the method have the inverse time characteristic, and the volume is small.

The invention discloses a pesticide application device for preventing and controlling underground plant diseases and pests of tobacco. The device comprises a vehicle-mounted platform and an angle adjusting column arranged on the vehicle-mounted platform, wherein at least one side of the angle adjusting column is provided with soil digging and pesticide applying arms. The device is characterized inthat each soil digging and pesticide applying arm includes an arm body, a sliding rod, a bracket and a ring knife, wherein the sliding rod, the bracket and the ring knife are sequentially connected in the length direction of the arm body; a soil pouring plug is arranged in each bracket and sleeved with the corresponding ring knife to form a piston structure with the ring knife; the end part of each ring knife is parallel to the free end of a pesticide application pipe on the corresponding soil digging and pesticide applying arm, and the ring knifes and the soil pouring plugs can separately and independently move. The pesticide application device for preventing and controlling the underground plant diseases and pests of the tobacco has the advantages that the pesticide application is uniform, targeted slow-release capsules for prevention and control are directly applied near the root systems of plants, the underground plant diseases and pests are precisely prevented and controlled, andthe usage amount of the biological pesticide is reduced.

The invention discloses a method for quickly detecting rice bakanae pathogen F.fujikuroi based on RPA. A primer pair is composed of two primers shown in the sequence 1 and the sequence 2 in a sequencelist. The invention further builds a quick detection method for the rice bakanae pathogen F.fujikuroi. The designed primers can effectively amplify the target gene, the method is higher in specificity and sensitivity, capable of being used for quick detection of the rice bakanae pathogen F.fujikuroi, and capable of precisely preventing and controlling occurrence and prevalence of the disease.

The invention discloses a mouse damage prevention and control device for fruit trees. The device comprises two circular hoops which are arranged according to upper and lower positions and wound on fruit tree trunks, a smooth sleeve wraps the outer parts of the two circular hoops, an edge position of the bottom edge of the smooth sleeve is lower than that of the bottom edge of the lower circular hoop, the edge of the bottom edge of the smooth sleeve is provided with small holes, and mouse repellant pesticide bags and bells are hung on the small holes. According to the mouse damage prevention and control device for the fruit trees and a prevention and control method of the device, the structure is simple, installation is convenient, costs are low, the device can be installed on each fruit tree and can prevent and control each fruit tree, a prevention and control range is wide, prevention and control is accurate, and the prevention and control method mainly uses a repelling manner, thus mice cannot be trapped or killed in a large area, ecological unbalance cannot be caused, and the method cannot have harm on people in an orchard.

The invention relates to a bipolaris sorokiniana loop mediated isothermal amplification (LAMP) detection primer group and application thereof, and belongs to the technical field of genetic engineering. According to the bipolaris sorokiniana LAMP detection primer group, an LAMP detection technology of bipolaris sorokiniana host is established by taking ITS of the pathogenic bacterium, namely the bipolaris sorokiniana, as a target sequence; and the adopted primers are high in specificity, and high in reaction system sensitivity. Thus, the reaction system is capable of accurately and rapidly detecting the bipolaris sorokiniana from diseased wheat tissue. The detection method of the bipolaris sorokiniana is simple, rapid and sensitive, and requires no expensive equipment; and thus, the detection method is conducive to large-scale promotion and use in grass-root plant protection stations so as to provide technical support for early and precise control of the bipolaris sorokiniana.

The invention relates to an autonomous fire danger prevention and control and area positioning container intelligent management system suitable for a freight container and a van carriage. The autonomous fire danger prevention and control and area positioning container intelligent management system is composed of an auxiliary unit and a fire extinguishing and function unit. The fire extinguishing and function unit is provided with a sensor set, a function controller, a buzzer, a fire extinguisher set, a wireless-connected module, a locator and a state display, all of which are sequentially connected. The sensor set at least comprises one or more of a special gas detector, a smoke sensor and a light sensation sensor. The fire extinguisher set at least comprises one or the combination of a gas fire extinguisher, a powder fire extinguisher, an aerosol fire extinguisher and a liquid fire extinguisher. The autonomous fire danger prevention and control and area positioning container intelligent management system achieves fire danger early warning and prevention and control through the sensor set, the function controller, the buzzer, the fire extinguisher set and the state display, the autonomous fire danger prevention and control and area positioning container intelligent management system is widely applied to safety monitoring of storage and transportation of various containers, andthe autonomous fire danger prevention and control and area positioning container intelligent management system has the beneficial effects that the structure is simple, arrangement is convenient, prevention and control are combined, and positioning is accurate.

The invention relates to a trunk injection liquid agent for Japanese red pine branch trunk pests as well as a preparation method and application of the trunk injection liquid agent. The trunk injection liquid agent is prepared from the following raw materials in percentage by weight: 0.1-20% of imidacloprid, 15-25% of acetic acid, 1-10% of a surfactant, and 1-5% of a penetrating agent, with the balance being a solvent. Compared with existing trunk injection liquids, the trunk injection liquid has the characteristics of low toxicity, high efficiency, low residue, safety to human, livestock, plants and natural enemies and the like. The preparation method is simple in process, low in cost and good in plant absorption; according to the application, more than 80% of organic solvents are reduced, and the risk of environmental pollution is greatly reduced. The application is not influenced by weather and the height of the tree body, and the prevention and treatment effect is better.

The invention discloses an overall solution technical scheme for precise prevention and control of largemouth bass ranavirus of mandarin fish. According to the scheme, a paramagnetic particle method virus DNA / RNA nucleic acid extraction kit (LBT-VDEK) is adopted, a 16-hole fluorescent quantitative PCR instrument (LBT-16QPCR) and matched equipment thereof are utilized, a PCR-fluorescent probe technology is adopted, and specific DNA nucleic acid fragments of the largemouth bass ranavirus of mandarin fish are quantitatively detected, so that the method is simple, convenient and rapid, good in specificity and high in sensitivity; and a modern traditional Chinese medicine technology and a micro-ecological technology are adopted, the mandarin fish carrying the largemouth bass ranavirus is prevented and controlled, the death rate can be effectively reduced, accurate prevention and control are achieved, the problem of the largemouth bass ranavirus disease of mandarin fish is comprehensively, systematically and integrally solved, and the method has very wide application prospects and very high practical value.

The invention discloses a forestry pest prevention and control method based on biological control technologies and big data and a prevention and control system. The method comprises the steps of obtaining pest data of forest land of a preset area through a preset mode; judging whether the pest occurrence area of the forest land exceeds a preset value or not according to the pest data; if yes, enabling a first pest prevention and control program for the forest land to execute a biological control measure; if not, enabling a second pest prevention and control program for the forest land to execute a biological disaster prevention measure. According to the forestry pest prevention and control method, the pest data of the forest land is obtained, then whether the pest occurrence area exceeds the preset value or not is judged, the biological control measure or the biological disaster prevention measure is executed according to the size of the pest occurrence area, and in this way, the purpose of precisely controlling and preventing forestry pests is achieved.

The invention discloses an artificial intelligence-based pest control system. The system comprises a wireless visual front end, a communication module and a cloud server, wherein the wireless visual front end comprises a solar photovoltaic panel, a solar charging control circuit, a lithium battery, an MCU, a GPS positioning module and an image acquisition module. The the image acquisition module shoots a high-definition image of a pest sticking plate placed in a tea garden at regular time and sends the high-definition image to the MCU; the MCU sends the high-definition image to the cloud server through the communication module; the cloud server receives high-definition image data, analyzes the types and the number of pests in the tea garden based on artificial intelligence, and provides prediction and forecast of the pest condition; and in the process, the MCU controls the solar charging control circuit to realize charging and discharging of the lithium battery by the solar photovoltaic panel. The system has the advantages of high automation degree, strong real-time performance and accurate prevention and control.

The invention discloses a sex trapping cage with viruses and a method for preventing and treating lepidoptera pests by using the sex trapping cage. The trapping cage comprises a sunscreen film cover,a hooks, a metal ring buckle, a conical net and a virus carrying basin. The hook is connected with an upper cover frame. The metal ring buckle is suspended at the bottom of the upper cover frame. Thetwo ends of the conical net are fixed with the metal ring buckle and a lower cover frame correspondingly. The virus carrying basin is suspended at the bottom of the lower cover frame, and a sponge block placed in the virus carrying basin is soaked with virus liquid. A lure is suspended at the bottom of the metal ring buckle. During the growth period of crops, more than two sex trapping cages withviruses are arranged in each mu of field, lepidoptera pests can be effectively controlled, the application amount of chemical pesticide is reduced, and the pest control cost is remarkably reduced. Twopest control measures of sex pheromone trapping and virus infection are organically combined, the mating probability of male and female pests is reduced, the male pests can feed virus liquid into bodies, viruses are vertically spread in populations after the contaminated male pests mate with the female pests, and accurate control over physical and biological control is achieved.

The invention relates to LAMP detection primer sets for wheat take-all gaeumannomyces graminis and a method utilizing the same, and belongs to the technical field of genetic engineering. The ITS of pathogen is taken as a target sequence so as to establish the LAMP detection technology of gaeumannomyces graminis, the adopted primers are strong in specificity, and a reaction system is high in sensitivity; and through the detection on diseased tissue, the reaction system can accurately and rapidly detect wheat take-all from diseased wheat tissue. The detection method is simple, rapid and sensitive without using expensive instruments, so that large-area promotion and use at grassroots plant protection stations can be achieved, and technical support can be provided for the early and accurate prevention of the wheat take-all.

The invention discloses a method for determining the absolute emission amount of tunnel gas in real time. The method comprises the following steps: S1: linear laser sensors are installed on one side of a tunnel section, the three groups of the linear laser sensors are arranged in order from top to bottom, the first group is installed 30cm below a tunnel vault, the other two groups are installed according to the averagely divided tunnel height, and the linear laser sensors are used to illuminate the other side of the tunnel section to measure the average concentration of gas on three groups ofbeams; S2: a wind speed sensor is installed 50cm below the vault of the same tunnel section of the laser sensors in step S1 to measure the wind speed of the tunnel section, and detection data of the wind speed sensor are compared with manual detection data to obtain a correction coefficient between the measured value of the wind speed sensor and the average wind speed value of the tunnel at different wind speeds; and S3: the wind speed sensor in step S2 collects data every 5S, and uploads the measured data to a control computer through a 485 bus.

The invention discloses an intelligent ozone disinfection system which comprises a water feed solenoid valve and the like. The water feed solenoid valve, a check valve and an automatic water intake regulating valve are connected with a multi-stage compression pump and a blending tank. A water feed and discharge hand valve at the bottom of the tank, a circulating hand valve on the tank, a water discharge solenoid valve, a tank body exhaust valve, a normally-closed blow-off solenoid valve, a hand reducing valve, a pressure sensor, an ozone water concentration detector, a water level meter, a safety valve, a pressure gauge, a relief valve, a hand blow-off valve and a first circulating water outlet are all connected with the blending tank. An ejector is disposed in the blending tank and connected with water through a solenoid valve, and a water discharge solenoid valve and a greenhouse water main pipeline are both connected to a split water cylinder. According to work instructions based on natural conditions, service concentration is regulated naturally, and germs in environments are skilled or prevented and controlled accurately. Besides, the intelligent ozone disinfection system can be applied in scale and achieves intelligent operation on site with people absence.