225results about How to "High utility value" patented technology

The invention discloses a method and a system for discovering a network hot topic based on situation assessment. The method comprises the following steps of: acquiring internet forum data in real time; preprocessing corpus of the internet forum data and extracting a candidate word string; forming a characteristic set in a vector form to express each post based on the candidate word string; clustering the posts, acquiring the discovered hot topic according to the clustering result and quantizing; and performing situation assessment on the hot topic generated by clustering and correcting the discovered hot topic according to a situation assessment result. By comprehensively utilizing a topic discovering and tracking algorithm and a situation assessment idea, the organization form of algorithms of selectable and customable processing processes is realized to analyze text information and mine data so as to discover the hot topic. The experiment result verifies the validity and the accuracy of the method and the system and the method and the system have great practical value.

The invention discloses a method for analog computation of concentration of a pollutant in a sensitive area. The method is as follows: 1) establishing a coordinate system according to the position of a predicted point of the sensitive area, and determining the position of a non-point source pollution source and coordinates of the predicted point; 2) determining the surface source height of the pollution source; determining the wind speed at a discharge site according to the surface source height; 4) determining diffusion parameters; 5) establishing a diffusion model, and inversely calculating emission source intensity of the pollutant according to the concentration of the pollutant at a monitoring point; 6) positively calculating the concentration of the pollutant at the predicted point according to the emission source intensity, and superimposing environmental background value to obtain the actual concentration value of the predicted point; and 7) comparing the positively-calculated concentration, obtained in the step 6), of the pollutant at the predicted point and a environmental standard to judge whether the concentration of the pollutant exceeds the standard. The concentration of the pollutant can be in real time monitored by means of an air automatic monitoring station built in the periphery of an industrial park. By setting up of the pollutant diffusion model, a calculation scheme for the concentration of the pollutant in the sensitive area can be formed, and diffusion of the pollutant in the industrial park can be forecasted and warned when emission source intensity is unknown.

The invention relates to a medicine reminder system for patients, comprising an intelligent medicine reminding monitoring terminal, a sphygmomanometer or glucometer, a remote server and an input device. The intelligent medicine reminding monitoring terminal and the input device are both communicated with the remote server. The intelligent medicine reminding monitoring terminal is communicated with the sphygmomanometer or glucometer. A user establishes a patient's prescribing information and a blood pressure and/or blood glucose measurement time schedule in the remote server through the input device and transits the information and the schedule to the intelligent medicine reminding monitoring terminal to acoustically remind the patient of taking medicines and measurements; after measuring, the intelligent medicine reminding monitoring terminal transmits data to the remote server, which performs comparative analysis and judges whether the patient takes the medicines correctly or not; once an anomaly is discovered, the intelligent medicine reminding monitoring terminal transmits an acoustic request on checking types and amounts of residual medicines and displays the types and amounts of the residual medicines. The medicine reminder system for patients has the advantages such that the patient can be acoustically reminded for taking the medicines automatically, and whether the medicines are correctly taken or not can be monitored.

The invention relates to the field of an automatic control system. The invention uses a variable fertilization control system which comprises a singlechip used for receiving external storage information, input information, feedback information and communication information and outputting control information and display information after internal arithmetic processing, and the control information is the control towards the fertilizer quantity of a fertilizing machine. The singlechip is connected with an electro-hydraulic proportional valve by a converter. An input end of the electro-hydraulic proportional valve is connected with the converter, and an output end is connected with a hydraulic motor. The output end of the hydraulic motor is connected with a fertilizing shaft of the fertilizing machine. One end of the fertilizing shaft is equipped with a photo-electricity coder, an electrical signal of which is fed back to the singlechip. The singlechip is also connected with an adjustment knob circuit. The electro-hydraulic proportional valve and the adjustment knob circuit are controlled by the singlechip and are used for adjusting the fertilizer quantity of the fertilizing shaft of the fertilizing machine. The integral manual and automatic variable fertilization control system has high practical value, simple structure and convenient operation.

The invention discloses an indoor map navigation route guidance algorithm which is convenient for people to realize an optimal route and measurable time in an indoor building body. The indoor map navigation route guidance algorithm adopts a road network node pathfinding method for implementation of pathfinding between any two points of indoor map single floor, cross floors, and many buildings, and according to the indoor map navigation route guidance algorithm, a found path is shortest, at the same time, the correct direction and less turning of the path can be ensured, and the relationship between the path and locating points are corresponding. Through the calculation of the distance of each section of the path and the total route, the time required from beginning to end can be estimated. The indoor map pathfinding route is clear and beautiful in display, a user can realize convenient navigation, and the indoor navigation utility value of the user is very high.

The invention provides a method for systemically and normatively planting guavas in a greenhouse in the north. The method comprises the following steps: selecting a sunlight greenhouse or a warming greenhouse with good thermal insulation property and carrying out field planting, field management and maternity regulation and control and the like. The method is suitable for normatively planting guavas in the greenhouse in the north and planting fruit trees in torrid zones and subtropical zones by utilizing the prior greenhouse conditions to enrich the varieties of crops planted by north facilities. The guava planted by adopting the method has thick and wide leaves, attractive fruit appearance, fresh and sweet fruity flavor, good fruit color and luster, juicy and crisp pulp, good mouthfeel and high yield. The method also can regulate and control the harvest time of guavas to satisfy the demands of sightseeing picking, thereby improving the economic benefit.

The speech recognition apparatus ( 1 ) is equipped with the garbage acoustic model storage unit ( 110 ) storing the garbage acoustic model which learned the collection of the unnecessary words; the feature value calculation unit ( 101 ) which calculates the feature parameter necessary for recognition by acoustically analyzing the unidentified input speech including the non-language speech per frame which is a unit for speech analysis; the garbage acoustic score calculation unit ( 111 ) which calculates the garbage acoustic score by comparing the feature parameter and the garbage acoustic model; the garbage acoustic score correction unit ( 113 ) which corrects the garbage acoustic score calculated by the garbage acoustic score calculation unit ( 111 ) so as to raise it in the frame where the non-language speech is inputted; and the recognition result output unit ( 105 ) which outputs, as the recognition result of the unidentified input speech, the word string with the highest cumulative score of the language score, the word acoustic score, and the garbage acoustic score which is corrected by the garbage acoustic score correcting means.

The invention discloses a preparation method of an experimental model of in-situ columnar joint rock. The method comprises the following steps: selecting a to-be-studied columnar joint rock mass area in an engineering field, and cutting in a direction perpendicular to the axial direction of column bodies to obtain column body sections in the area; obtaining sketches of a plurality of irregularly polygonal joints in the corresponding area; scaling the sketches according to the similarity ratio of (10:1)-(25:1) to generate corresponding moulds, generating column body models by adopting a material which has physical-mechanical properties similar to those of the prototypes, and gluing the column body models to form a cubic model; and curing the cubic model, then cutting and polishing the cubic model to obtain a sample with a standard size, and finally performing a physical-mechanical experiment on a joint rock mass on an indoor experimental instrument. According to the preparation method of the experimental model, the similar model is prepared for indoor experiments under the actual conditions of the field and on the premise of following a similarity principle, the difficulty of an in-situ experiment is solved, the authenticity is kept, an experiment result can be provided as a basis for engineering calculation and study, a high practical value and good economic benefits are achieved, an extra experimental instrument design is not needed, and the experimental cost is low.

The method comprises: after sending end makes inverse fast Fourier transform (IFFT), it determines the amplitude value of OFDM signals. The invention provides a companding function for making transform in order to make the transformed amplitude value submits to the linear function distribution and the phase of signal keep unchanged; the receiving end makes inverse companding transform for amplitude value of the received signals, and then makes fast Fourier transform (FFT) and decode for it.

The invention discloses a character input method via mobile phone camera method, which uses general camera mobile phone to shoot a target character picture and uses the software of the mobile phone to recognize the character in the picture into text character. And the method comprises that using mobile phone to shoot a target character material into a plurality of pictures, a character recognize module analyzes each picture, to draw out each character block on the picture according to the character profile, analyzing the strokes in the character, selecting similar characters from a character group automatically or hand-operated, when right character is not in a candidate character list, user inputs the character via hand. The invention is based on the basic hardware of present mobile phone, which can be realized by developing special software, with low cost and high practicality. The inventive method can be processed by general low-resolution mobile phone, with which user can freely collect information via mobile phone.

The invention relates to an ultralow-temperature urea reducing agent composition. The solution comprises five components such as A, B, C, D and E and is characterized in that the component A is urea; the component B is ammonium; the component C is amide; the component D is low-molecular-weight alcohol; the component E is high-purity water; and the components A, B, C, D and E are mixed in proportion. Compared with the traditional urea reducing agents, the product has the following advantages: the freezing point of the product is lower than minus 35 DEG C; and the product is suitable for being used in the northern cold regions in winter.

The invention provides a service fusing control method, a service fusing control device and a server cluster, and relates to the technical field of information processing. The service fusing control method comprises the following steps: obtaining execution state information of each service node executing a service request of electronic equipment within a first preset time length, the execution state information comprising execution success information and execution failure information; Judging whether to stop executing the service request of the electronic equipment or not based on a preset condition and the acquired execution state information; And if the execution of the service request of the electronic device needs to be stopped, controlling each service node to stop executing the service request of the electronic device so as to stop providing service for the electronic device. By means of the method, the problem that the service fusing control effect is poor in the prior art canbe solved.

The invention discloses a PFC (Power Factor Correction) fault detection method for a direct-current variable frequency air conditioner controller, comprising the following steps of: (1) detecting an overvoltage value Up and an undervoltage value Ud of a direct-current bus voltage of a direct-current variable frequency controller, and detecting a direct-current voltage U by a direct-current bus voltage detection circuit arranged on the direct-current variable frequency controller; (2) when U is less than or equal to Ud or U is more than or equal to Up, immediately stopping a pressing machine, and reporting overvoltage and undervoltage protection faults; (3) detecting the maximum direct-current voltage Umax and the minimum direct-current voltage Umin when PFC is in normal regulation within the allowable voltage range; (4) when the direct-current bus voltage works within the range that U is more than or equal to Umin and is less than or equal to Umax, determining that PFC is in normal regulation and the pressing machine normally works without PFC faults; and (5) when U is more than or equal to Ud and is less than or equal to Umin or U is more than or equal to Umax or less than or equal to Up, reporting the PFC faults. With the PFC fault detection method, PFC regulation faults can be reported in time, therefore, the faults can be found as earlier as possible and maintained in advance, and the pressing machine can be prevented from burning so as to lower cost.

The invention relates to a preparation method of high-purity graphite. The preparation method of high-purity graphite includes the following steps that 1, medium-carbon or high-carbon graphite is taken, charged into a first-stage graphite extraction device and treated for 0.5-2.0 h at 1000-2000 DEG C; 2, a solid product obtained in the step 1 is charged into a second-stage graphite extraction device and treated for 0.5-1.0 h at 2000-3000 DEG C, and then high-purity graphite is obtained. By means of the preparation method of high-purity graphite, the requirements of a high-temperature method for graphite purification equipment can be lowered, and conditions can be created for industrial promotion of the high-temperature method and industrial production of high-purity graphite with the carbon content larger than 99.99%; meanwhile, the preparation method of high-purity graphite has the advantages of being high in production efficiency, low in energy consumption and the like, is beneficial for large-scale industrial production and has great practical promotion value.

The invention discloses a winding magnetic flux leakage and electrodynamic force calculation method based on transformer segmented models. The method comprises following steps: carrying out finite element magnetic field modeling and solution to a power transformer, calculating the leakage magnetic fields of the transformer by a vector magnetic potential edge finite element method, and calculating and analyzing the electrodynamic force borne by a winding through simulating internal magnetic field distribution of the transformer. According to the method of the invention, the influence of the operation state of the voltage adjusting winding on the leakage magnetic field distribution is considered fully; the leakage magnetic fields under three different operation conditions are respectively calculated and analyzed; the operation conditions comprise maximum shunting, rated shunting and minimum shunting; therefore, the condition that magnetic fields and stresses of the transformer winding change according to different connection methods of the voltage adjusting winding is simulated more accurately; the distribution rules of the leakage magnetic fields and the electrodynamic force are obtained; a basis is provided for judging the structure stability of the transformer winding; and the method is scientific, reasonable, real and effective and has high practical value.

The invention relates to a novel stationary type wind energy and wave energy integrated power generation system, belonging to the technical field of marine renewable energy utilization. A single pile of a fan is fixedly connected with a sleeve near the sea level, and an oscillating wave energy power generation deice is connected with the sleeve positioned near the sea level through a fastening device. Two fastening devices are arranged on the sleeve. The wave energy power generation deice comprises a PTO energy catching system and floaters, and the floaters are symmetrically arranged on the two sides of a single pile foundation and reaches the first fastening device through hinges. The PTO energy catching system is hinged between the floaters and the second fastening device and is vertical to the floaters. The PTO energy catching system converts linear piston motion to electricity through a linear generator and is connected with the power transmission system of a wind driven generator. The power generation system improves the effective utilization ratio of sea area, reduces the construction cost and maintenance cost, makes full use of the existing mature fan technology, promotes the commercial application of a wave energy device, and is a reliable marine renewable energy power generation platform.

A map information updating device for automatically selecting a piece of map information most suitable for the user from the map information and updating the map information. The map information updating device comprises a map information storage section (103) storing map information, position information detecting section (101) for detecting the current position, a move history storage section (102) for storing a series of detected positions as move history, a map information selecting section (104) and a map information updating section(105) for selecting one of a first updated map information providing section (108) and a second updated map information providing section (109) and acquiring updated map information from the selected providing section, an updated map information storage section (106) for storing the acquired updated map information, and a combining displaying section (117) for combining the map information stored in the map information storage section (103) and the updated map information stored in the updated map information storage section (106) and displaying the combined information.

The invention discloses a probabilistic load prediction system and method based on a Gaussian process quantile regression model. The method comprises the following steps: inputting a sample data set through an input unit; dividing the sample data set into a training set and a test set, and performing normalization processing on historical power load data and temperature data of the training set; performing correlation factor analysis on the historical power load data and the temperature data of the training set to construct a feature vector; inputting the feature vectors into a Gaussian process quantile regression prediction model; setting a quantile change interval of the model, wherein the model outputs a plurality of conditional quantile load prediction results; inputting the conditional quantile load prediction result into a kernel density estimation function for kernel density estimation to obtain a load probability density function; and calculating a load confidence interval anda load prediction estimation value through a load probability density function. According to the method, the confidence interval and probability density of power load prediction can be effectively constructed, and the accuracy of power load prediction is improved.

The invention provides a display method and display equipment, and relates to the field of displaying. The display method is applied to the display equipment. A display screen of the display equipment consists of a plurality of display regions. The display method comprises the following step: when one or more display regions fail, re-displaying a picture on the display screen based on faultless display regions. According to the display method, if the partial display regions of the screen cannot display a picture normally, the displayed picture is re-compensated, that is, a normal display region is used for displaying the whole picture on the screen, so that a user can acquire all the types of picture information in time to avoid loss of safety and properties, and thus the display equipment is extremely high in practical value.

The invention relates to the field of agricultural machinery, in particular to a reaping area measuring and billing system. The reaping area measuring and billing system comprises a single chip micyoco that is used for receiving system detection information, external input information and external communication information, implements operation processing of the information and outputs system information through a monitor, a printer and a communication port; the single chip micyoco is further connected with an ultrasonic breadth measuring circuit, a distance measuring sensor, a cutter head sensor, a bus controller and a transceiver. The reaping area measuring and billing system has the advantage that the working area measuring and billing system is provided. The reaping area measuring and billing system can implement measurement of reaping breadth, store working data and print reaping area and billing result if required.

The invention discloses a rapid iris positioning method with illumination robustness. The method comprises the steps of inputting a natural illumination photo of the front side of the human face, detecting the positions of the eye areas on the input human face image through a partial active appearance model, executing edge operators on the eye areas to acquire edge images of the eye areas, calculating fitted curves of the eye edges to work out internal canthus points and external angular canthus points, correcting the deflection angle of the human face with the connecting lines of the canthus points as reference lines, connecting the internal canthus points and the corresponding external canthus points, searching for the edges of the iris areas with the central points of the connecting lines as the initial search positions, regarding the detected length of the connecting line of the left edge point and the right edge point of each iris as the diameter of the corresponding iris and the central point of each connecting line as the positioned central point of the corresponding iris, and outputting the coordinates of the central points and the diameters of the irises. Positioning of the central points of the human eyes is achieved under natural lighting, and therefore the method has certain robustness for illumination and eyelid sheltering.

The invention discloses a dynamic broadcast method and system based on text traffic information of a position. The method comprises the following steps of: aiming at a road required to perform text traffic broadcasting, generating text traffic information of the road in real-time through analyzing the road situation; scanning a presetting range in front of a vehicle, and requesting the text traffic information in the preset range; and broadcasting the text traffic information according to a preset broadcast way. The system comprises a road situation analyzing device and a text traffic generating device which are arranged at a service end, a text traffic requesting device, a broadcast setting device and a text traffic broadcast device which are arranged at a client. According to the method and the system provided by the invention, the text traffic information broadcasted to a car owner is shown more convenient and safer than images, and is more convenient for the car owner to understand; and moreover, the broadcasted text traffic information belongs to the road concerned by users in a high degree and is concerned urgently by public users.

The invention provides a central cutter mechanism for an automatic bag-opening parallel sewing machine and belongs to the technical field of machinery. The problems of the conventional central cutter mechanism for the automatic bag-opening parallel sewing machine, such as low cutting resolution ratio and low mechanical property, are solved. The central cutter mechanism for the automatic bag-opening parallel sewing machine is arranged on a machine body of the bag-opening parallel sewing machine and is connected with a central cutter rod of the bag-opening parallel sewing machine. The central cutter mechanism comprises a cutter connecting rod, a driving mechanism and a clutch mechanism, wherein one end of the cutter connecting rod is hinged with the central cutter rod; the other end of the cutter connecting rod is connected with the driving mechanism; during an operation process of the driving mechanism, the central cutter rod can be driven by the cutter connecting rod to repeatedly move up and down; the clutch mechanism is connected with the cutter connecting rod; and the clutch mechanism enable the driving mechanism to drive or not to drive the central cutter rod to repeatedly move up and down during the operation process. The central cutter mechanism for the automatic bag-opening parallel sewing machine has the advantages of high practical value, high use safety and the like.

The invention provides a strong electromagnetic propulsion device, comprising a capacitor, an inductance coil, a switch, and a circuit of a partially asymmetric closed loop including a power supply, the inductance coil is wound on a winding tube, a capacitor circuit is arranged inside or beside the winding tube, a soft magnet or super-conductivity substances are arranged in the winding tube, so as to generate enhanced combination ampere force and effectively lighten the gravity of the device or generate power along other directions. In the invention, conventional electric and magnetic principle is adopted, strong electromagnetic propulsion force is generated, the cost is low and the practical value is large.

The invention discloses an experiment practical training device of a central air-conditioning system, which comprises a cooling tower, a control platform, a part mounting frame, a high lever water tank, a simulation air-conditioning area, a simulation boiler and a system frame, wherein the cooling tower, the part mounting frame, the high lever water tank and the simulation boiler are arranged on the system frame. Using the experiment practical training device, various works which are experiment practical training teaching of the central air-conditioning system, engineering training, the application of sensor detection technique, programmable control technique and the development of configuration technical program and the like can be done, and the experiment practical training device has a large practical value.

The invention discloses an inclined turnover filter device and a filtering method. The inclined turnover filter device comprises an inclined cylinder and a rectangular filter plate arranged on an axial central surface in the cylinder, wherein the inner cavity of the cylinder above the filter plate forms a water inlet cavity; the inner cavity of the cylinder below the filter plate forms a water outlet cavity; a water inlet is formed in the water inlet cavity side of the upper end surface of the cylinder; a water outlet is formed in the water outlet cavity side of the lower end surface of the cylinder; sundry outlets are formed in the water outlet cavity side of the upper end surface of the cylinder and the water inlet cavity side of the lower end surface of the cylinder; a rotating shaft ishorizontally fixed to the centers of the two sides of the cylinder; the cylinder is rotatably arranged on a machine frame through the rotating shaft. The inclined turnover filter device effectively solves the problems that the filter device in the prior art easily causes dirt accumulation, a filter screen needs to be frequently cleaned, and thus manpower and material resources are wasted; the inclined turnover filter device is simple in structure, can automatically clean the filter screen by backflushing, and has a very high practical value.

A hyperspectral image denoising method combining L0 gradient constraint and local low-rank matrix recovery comprises the following steps: 1) obtaining hyperspectral image data to be denoised, and defining a hyperspectral image denoising model; The method comprises the steps of (1) obtaining a to-be-processed hyperspectral image, (2) calculating an L0 gradient matrix of the to-be-processed hyperspectral image, (3) establishing a local low-rank constraint-based model, and (4) establishing a denoising model in combination with L0 gradient constraint and local high-rank property of the local high-spectral image, and recovering the three-dimensional noise-free high-spectral image.

The invention discloses a Nor Flash chip control method based on an AXI bus and belongs to the technical field of Flash chip control. The Nor Flash chip control method based on the AXI bus is realized through a system. The system comprises an AXI bus interface, a programmable device and a Nor Flash chip interface. The AXI bus interface is connected with the programmable device, the programmable device is connected with the Nor Flash chip interface, the AXI bus interface is connected with an SOC system, the Nor Flash chip interface is connected with a Nor Flash chip, the programmable device is used for receiving and processing information transmitted by the AXI bus and controlling reading and writing of the Nor Flash chip according to requirements, and then communication between the AXI bus and Nor Flash is achieved. According to the Nor Flash chip control method based on the AXI bus, due to the fact that the AXI bus is adopted, bridge connection between clock domains is simplified, and data processing capacity is greatly improved; meanwhile, due to the fact that the addresses of the AXI bus are separated from data channels, each channel can be optimized individually.

The invention discloses a 3-difluoro alkyl substituted all-carbon quaternary carbon oxoindole derivative and a synthetic method thereof. The structure of the compound is in the formula (refer to the Specification); the compound has underlying biological activities and pharmacological activities; formidable technical supports are provided for the development of new medicines and the high utility value is achieved. According to the synthetic method of the compound, alkene derivative of isatin and a nucleophilic reagent difluoro-silyl enol ether are taken as raw materials, subjected to a Mukaiyama-Michael additive reaction and synthesized in one step. The method has the characteristics that the raw materials are cheap and easy to get, the reaction conditions are mild, the operation is convenient, the application range of substrates is broad and the excellent productivity and enantioselectivity can be acquired and the like.

The invention discloses a square-bar-shaped material edge defect sorting machine and a controlling method. The sorting machine comprises a rack, an edge defect detecting device, a conveying device, a sorting device and an electromechanical control module. The edge defect detecting device is connected with the rack through a bearing plate. A material inlet of a feeding and clamping mechanism in the edge defect detecting device is in butt joint with an outlet of a square-bar-shaped material producing machine. The conveying device is located at a material outlet of the feeding and clamping mechanism of the edge defect detecting device and fixed to the rack through a motor plate. The sorting device is installed on the rack through the motor plate and located at the outlet position of the conveying device. The electromechanical control module is connected with the edge defect detecting device and the sorting device and used for controlling the whole sorting and detecting processes of the sorting machine. The square-bar-shaped material edge defect sorting machine can judge whether the edges of square-bar-shaped materials are defected or not accurately and fast and classify the edges accurately, and has high practical value and wide application prospects.