163results about How to "Meet the accuracy" patented technology

The invention relates to one digital mobile communication technique suitable for one transmission base station monitor method and system based on wireless mobile terminal, which uses GSM communication network short message channel to sort monitor data and to transmit on focus degree, wherein, the alarm information and inquire information send by real time and the operation information without alarm sends method and process technique to form alarm guide base station monitor system by network monitor center, base station and other human cell phone network.

The invention provides a route planning method for an autonomous vehicle based on a vector map and a grid map. The route planning method comprises: planning a global shortest route of the current position of the autonomous vehicle to a target point through a global vector map; obtaining a current partial grid map of the current position of the autonomous vehicle; and according to the global shortest route, calculating a partial motion route based on the partial grid map, and controlling the autonomous vehicle to travel to the target point according to the partial motion path. According to theroute planning method for the autonomous vehicle based on the vector map and the grid map, the vector map is used as an environment model in the global route planning layer, and the grid map is used as an environment model in the partial motion route planning layer, that is, different maps are used as environment models in different planning layers, and at the same time, different types of planning algorithms are used, so that the real-time performance and accuracy of the algorithm under an actual scene are met at the same time, and the algorithm combining the vector map and the grid map greatly reduces the occupation of system operation resources.

The invention relates to a testing method and a testing device of a train pneumatic performance simulation moving module. The testing method comprises the following steps: a train model on rails is used, one end of the trail model is provided with an elastic traction mechanism which passes through a travelling block speed increasing mechanism and a traction train module; the train model is pulled to the other direction of the other rail to enable the elastic traction mechanism to tension to generate contraction elasticity; and the pulled train model is released and is speeded up to the testing speed under the drive of the contraction elasticity of the elastic traction mechanism. The invention has simple implementation method and easy control, can realize the operation that the trail can quickly accelerate to 400 km / h from still and from high-speed brake to still, has higher testing accuracy, can relatively truly reflect ground effect and train crossing condition and reflect various actual running states of trains on rails.

The invention discloses a vessel main engine energy-saving rotation speed measuring and selecting method, which comprises the following steps that: a vessel begins sailing from the lowest rotation speed in a main engine rotation speed range, and oil consumption in a unit distance is calculated according to a sailing distance and oil consumption of the vessel; the vessel sails increasingly in the main engine rotation speed range, and rotation speeds are recorded in turn; when the vessel sails a cycle in the main engine rotation speed range, the oil consumption in the unit distance and corresponding route speeds in the full main engine rotation speed range are acquired; and the main engine rotation speed which is greater than the slowest route speed and corresponds to the lowest oil consumption in the unit distance is selected from all the data for sailing. The invention also discloses a marine main engine energy-saving rotation speed measuring and selecting system, which comprises an oil inlet pipe flowmeter, an oil return pipe flowmeter, and an oil consumption integrating meter which is electrically connected with the oil inlet pipe flowmeter and the oil return pipe flowmeter; and the oil consumption integrating meter is also electrically connected with a speed measuring device. The method and the system greatly save the oil consumption and have obvious effects.

The invention discloses a commodity demand information prediction method under multiple influence factors. The method comprises the steps that historical data are collected at first; the data are processed to form a training sample set, wherein the processing process comprises processing the data in a smooth mode, removing singular values, processing various influence factors in a fuzzy mode, processing the data in a normalization mode, and preventing data calculation overflow; then the formed training sample set is placed into a support vector machine to conduct study, and parameters in the prediction algorithm are adjusted to be optimal values; external information of nodes with prediction demands is input to a fuzzy processing system, and information to be predicted is obtained. According to the commodity demand information prediction method under the multiple influence factors, various factors influencing commodity information are considered comprehensively, and the influence of each factor on the commodity information is processed in a quantification mode, the problem that external information is ignored in a traditional prediction algorithm is solved better, overall optimization of the prediction algorithm can be achieved, and therefore people can grasp and know the commodity information more accurately and conveniently.

The invention relates to the field of industrial cluster information integration services, in particular to a geographic information system (GIS)-based industrial cluster information integration and service method and an information integration service system adopting the same. The system mainly comprises a spatial information management subsystem, an attribute information management subsystem, a data element input subsystem, a spatial analysis and policy-making subsystem and a system management and maintenance subsystem. The GIS-based industrial cluster information integration service system and the GIS-based industrial cluster information integration method of the invention have the advantages of introducing advanced GIS technology to realize the mapping and corresponding of spatial information and many kinds of attribute information and meet the requirements of system users on the advancement, accuracy and timeliness of geographic information and technical information, and visibly, conveniently and fast providing the public service support of the resources of geographic orientations, equipment, technology, processes, products and the like for enterprises in and among clusters by utilizing content-based information processing technology and performing intelligent analysis through networks.

The invention discloses a video image pickup method with consistent time and space domains, of digit video process, which comprises that (1), interactive disperse that user interacts on a three-dimension video element, and obtains a shield via disperse calculation, and divides video element into foreground area, background area, and unknown area, (2), picking iterated video image that calculating out the alpha value of each point on the three-dimension video element as non-transparency, (3), foreground reconstruction with consistent time and space domains that according to the alpha value, calculating out the foreground color value with continuity at time and space domains. The inventive method can quickly, effectively, and high-quality pickup image of video, which can resolve the problems of prior video pickup method as discontinuous result and long process time, with high practicality.

The invention discloses an illegal parking detection method based on multi-core synchronization. The camera for shooting and a processing system connected with the camera are provided for the method. The processing system is provided with an original image for comparing whether the automobile is illegally parked; the method comprises the following steps of: (1) background modeling; (2) foreground segmenting; (3) data pre-processing; (4) map-reduce synchronous computation; (5) retention area detecting; and (6) retention target judging. The background is modeled through an improved codebook model to obtain an accurate foreground segmentation result, the region partitioning is performed on the to-be-detected video frame, the foreground proportion and color feature vector of different frames in the same region partition are synchronously computed by Map-Reduce. The retention region detection and illegal parking detection are performed according to the computing result, specifically, the foreground proportion and the color feature vector of the continuous frame sequence are used for judging whether the target is the same retention target, and the adjacent residential area combination and the scale filter judgment are used for judging whether the target is the automobile target.

The invention discloses an eye movement tracking method on the basis of accurate iris positioning. The method mainly comprises a human face detection module, a human eye detection module, an eye movement tracking module and the like. A human face area is detected according to a detector based on the AdaBoost algorithm. A human eye is detected on the basis of human face area detection. An iris area is accurately located. A tracking template based on combined characteristics of target colors and edges is built up. The influence of saturability components is considered when the color characteristic template is built up. The condition that the iris can deform due to the fact that an eye is closed is considered in the tracking stage. Self-defined standards are used for judging, so that the tracking template is adjusted in a self-adapting mode. Consequently, eye movement tracking is finished. Compared with other methods, the method is higher in tracking speed, higher in tracking accuracy, and wide in application range, meets requirements for real-timeness, accuracy, and robustness, and has good application prospects in handheld mobile equipment.

The invention relates to a method and system for measuring the frequency of a single coil vibrating instrument, wherein the method comprises the following steps: firstly, exerting alternating swept-frequency exciting signals on the two ends of a frequency measurement coil in the single coil vibrating instrument so as to drive a steel string to perform mechanical vibration; then, canceling the swept-frequency exciting signals, and forming induced voltage signals at the two ends of the frequency measurement coil, wherein the frequency of each induced voltage signal is consistent with that of the mechanical vibration of the steel ring; carrying out data acquisition on the induced voltage signals by virtue of an AD (analog-digital) converter, and carrying out FFT (fast fourier transform algorithm) spectrum analysis on the signals (acquired by the AD converter) by virtue of a digital signal processor; and finally, extracting the basic frequency signals in the spectrum according to a maximum value method, and then obtaining the frequency measurement value. The method provided by the invention has the advantages of increasing the anti-interference capacity, and improving the accuracy and reliability of frequency measurement of the single coil vibrating instrument.

The invention relates to a decision making technique for the events, in order to solve the problem of decision-making simply and rapidly under the condition of a large amount of knowledge. The invention, for each event, can group each condition and become one group for the condition with identical prior probability and identical ' and , or ' relation to form one condition group, the corresponding relation table can be established according to the mapping relation between events, conditions and condition group, then the knowledge base for decision making is established based on the information in the relation table. A decision making application system for the events, which includes a server providing with the knowledge base and a computer connected with the server, can be established based on the knowledge base; the computer may receive one or more conditions inputted by user, the server, for every condition received, can carry out special ergodic process in the knowledge base, and look up out all condition groups with the condition, and the relative decision probability for one or more events can be figured out based on the information such as maximum probability or value of condition group, the satisfied condition number.

The invention discloses a honey pot mechanism and method used for collecting and intercepting internal storage behaviors of a computer. The mechanism comprises an internal storage virtualization module, a honey pot module, an introspection module, a control module and a honey pot recording module; the mechanism is based on the internal storage virtualization technology, supports the SMP structure, can deploy a lightweight virtual machine when an operating system operates, and monitors the internal storage behaviors in a honey pot; the mechanism can also serve as a submodule of other virtual machines to achieve the same functions; the honey pot monitors the accurate amendment situations of each course of multiple kernels on the key area of an internal storage when the operating system operates, the amendment situations are represented by a bitmap, at the same time, the introspection module collects related detailed course information and the state when the course completely operates at that time, and all records are centralized in the honey pot recording module. On the basis of the event-driven mode, any codes of the operating system of an object are not amended, and compared with existing instruction-level monitoring, the performance losses are low, the flexibility is high, and the method is applicable to real-time evidence obtaining and dynamic analysis.

The invention discloses a method for sending an uplink synchronizing channel (RACH) (Random Access Channel). The method comprises the steps of configuring RACH according to the following structure: in a time domain, the RACH comprises CP, Preamble, and GT, wherein the length of the CP is 0.8us, 1.6us or 5.6us, the length of the GT is 0.4us, 0.8us or 4us, and the length of the Preamble is 12.5us or N*12.5us, and N is an integer greater than 0; in a frequency domain, the bandwidth occupied by the RACH is 1.2MHz or 960KHz, and the width of a RACH sub carrier is 80KHz; and sending an uplink signal by the configured RACH. The invention further discloses a device for sending the RACH, which meets the requirements of coverage of LTE-LAN (Long Term Evolution-Local Area Network) and timing precision, as well as utilizes system resources adequately and reduces the expenses.

The present invention relates to a method and a system for filtering a real-time junk mail. A mail text and mail description information are extracted first, an algorithm is generated by adopting an efficient characteristic pattern to switch the mail text to be a combination of a plurality of fingerprints, to represent an original mail. If the memory has no mail with the similar content with the current mail, a mail class is created in the memory, and the information about fingerprint and description of the current mail is preserved; only the description information in the mail class is updated, if the mail number contained in the mail class exceeds the predefined threshold value of the junk mail, the mail class is taken as a junk mail class, and the mails distributed to the class at later times are determined as junk mails by a filtering system. The present invention can effectively identify the junk mail with a small amount of fingerprints, the maintenance cost is low, and the user privacy is not violated; the present invention has perfect performance in the execution efficiency and in the memory expenses, the present invention is used for filtering the junk mails under a great flow capacity environment, the problem that the junk mains occupy the network band width is abated, thus the utilization ratio of the network resources is improved, and simultaneously the filtration pressure of the client side is reduced.

The invention provides an intelligent indoor temperature and humidity control method and an intelligent indoor temperature and humidity control system. The intelligent indoor temperature and humidity control method comprises the following steps: selecting an indoor target temperature value T according to an indoor staff state and a light shade state; respectively controlling an air conditioner and a humidifier to operate; generating a target humidity value H according to the target temperature value T in the system; controlling a running condition of the humidifier according to the current indoor humidity and an air conditioner available state; judging a size relationship of the current indoor humidity Ha and the target humidity value H; and automatically regulating and running the humidifier according to the actual dehumidifying capacity of an air conditioner. According to the intelligent indoor temperature and humidity control method and the intelligent indoor temperature and humidity control system, air conditioner equipment and humidifier equipment are mutually linked, so that the humidifier generates the target humidity value according to the indoor target temperature value, is controlled in the running condition according to the current indoor humidity and the air conditioner available state, and automatically regulates and runs according to the actual dehumidifying capacity of the air conditioner. The indoor humidity fluctuation is reduced, so that not only is application comfort of a user guaranteed, but also the air conditioner and the humidifier are in the most energy-saving state.

The invention discloses a deep learning-based red light violation detection method, which relates to the field of traffic violation detection. The positions of lanes and traffic lights at a traffic light intersection are determined in advance, and the traffic lights are matched with the corresponding lanes. The condition at the traffic light intersection is photographed and recorded through a camera, a photo set transmitted by the camera later is processed centrally, and whether a vehicle has a red light violation behavior is judged based on the positions of the same vehicle under the same traffic light on different photo frames. Besides, as for an off-line vehicle that is unrecognizable due to a long distance, whether to be a known vehicle is recognized in a vehicle similarity comparisonmethod. Various algorithms and models are combined, and the novel traffic violation detection method meets the requirements of violation detection accuracy and flexibility by urban road traffic management.

The invention discloses a vehicle front target detection method based on a characteristic-point mutual information content and an optical flow method. The method comprises the following steps: firstly, reading color images of two adjacent frames in a video and converting the color images into gray level images; secondly, carrying out pretreatment on the gray level images, using a histogram equalization method to carry out enhancement so as to increase a resolution ratio of a target lane line; thirdly, using a method based on a median filtering to carry out smoothing process; finally, after the pretreatment is performed, using the method based on the characteristic-point mutual information content and the optical flow field to detect vehicle front motion barrier. The last step comprises: 1) extracting a characteristic point; 2) marking; 3) determining the number of angle points; 4) selecting an area; 5) calculating the mutual information content; 6) determining a angle point chain; 7) calculating an angle point optical flow; 8) determining a distance and an angle criterion and deleting the angle points possessing a same vector; 9) carrying out thresholding and acquiring a final motion barrier detection result.

The invention discloses a printed type graphene-based NO2 gas-sensitive element and a preparation method thereof. The preparation method comprises the following step: by fully combining the advantages of intaglio printing technology and graphene, sequentially printing a comb-type interdigital electrode and a graphene sensitive layer on a substrate, thus finally obtaining the printed type graphene-based NO2 gas-sensitive element. The printed type graphene-based NO2 gas-sensitive element has the following advantages that (1) the NO2 gas-sensitive element based on the comb-type interdigital electrode and the graphene sensitive layer has excellent gas-sensitive characteristic and sensitivity on NO2 under the room-temperature condition; (2) the printed type graphene-based NO2 gas-sensitive element is scientific in design, and stable in performance running, and can meet the demands of accurately and continuously monitoring the concentration of NO2 in a life environment in real time; (3) the graphene-based NO2 gas-sensitive element prepared by adopting a printing manner is simple in technology, convenient to operate, low in cost, and suitable for industrial mass production, and technology parameters are easy to control.

The invention discloses a power transmission line hidden danger detection method. The method comprises the steps of obtaining a to-be-detected image shot by satellite inspection; inputting the to-be-detected image into a ground object classification model to obtain a classification result image outputted by the ground object classification model; determining the line hidden dangers in the ground objects according to the distances between the ground objects in the classification result graph and the power transmission line, wherein the ground object classification model is obtained through thefollowing steps of S1, marking different ground objects in an original remote sensing image in advance to obtain a marked remote sensing image; S2, establishing a training set by the marked remote sensing image and a corresponding original remote sensing image; S3, using the training set to train the U-Net network; S4, carrying out accuracy inspection on the trained model through the verificationset, if the accuracy is smaller than a preset value, adjusting the parameters of the current model, and returning to the step S3; if the accuracy is greater than or equal to a preset value, outputtingthe ground object classification model, so that the technical problem that different detection methods need to be designed for different hidden danger types in an existing detection method is solved.

The invention relates to a generator rotor ground protection method through voltage division by using resistors. The generator rotor ground protection method comprises a Ping-Pong-type generator rotor ground protection method through voltage division by using resistors and an injection-type generator rotor ground protection method through voltage division by using resistors. The generator rotor ground protection method is characterized in that exciting voltage which is input into a protection screen is reduced, whether a ground fault occurs on the lead of an exciting circuit or the lead of a measuring circuit is correctly judged through switching of different extraction resistors, and theoretical data is provided for troubleshooting of field fault points by calculating the ground resistance and the positions of two positioned points. Aiming at overcoming the defects existing in the traditional Ping-Pong-type and injection-type generator rotor ground protection methods and further improving the traditional Ping-Pong-type and injection-type generator rotor ground protection methods, by reducing the exciting voltage input into the protection screen, the requirement on the measurement accuracy of the ground resistance and the position of one point in the field is met.

The invention discloses a material sending module and a screen printing machine. The screen printing machine includes the material sending module, a feeding module, a main machine, a printing module and a discharging conveyor belt; the material sending module is used for conveying printing stock to the feeding module one by one; the feeding module is used for enabling the printing stock to sleevea conveying shaft of the main machine one by one to complete the feeding of the printing stock one by one; the main machine is used to drive the printing stock to move to different stations; the printing module is used to print the printing stock through a first squeegee, a second squeegee and a screen; and the discharging conveyor belt is used to conveying the printed printing stock out of the main machine to complete discharging. The screen printing machine is simple in structure, few in the usage amount of power equipment and very convenient to maintain. In addition, materials can be sent to the material sending module through an existing manipulator, a vibrating plate and the like so as to realize the full-automatic feeding, printing and discharging, manual participation are not neededin the whole process, the labor cost is greatly reduced, 24-hour uninterrupted production is realized, high competitiveness is provided for enterprises, and the market space is wide and the economicvalue is high.

The invention provides a method and a device for building a development environment of a distributed application system. The method includes building at least two subsystems which are built by servers with same functions; configuring invocation path information among specified servers in corresponding subsystems according to the functions relating to current application; and generating invocation paths among the specified servers according to the invocation path information among the specified servers in the corresponding subsystems. By the method and the device, the process of environment building of the distributed application system can be simplified, error rate can be lowered, and efficiency and accuracy of troubleshooting can be improved.

The invention provides a BIM-based information management method for high-speed railway precast beam yards and belongs to the technical field of railway beam yards. The method comprises the steps of: based on BIM technology, BIM models for box beams in a high-speed railway precast beam yard is built; a server end generates beam yard construction procedure tasks according to beam erection construction organization information of the beam yard; the server end sends the generated procedure tasks to a client so that the client can perform initiating or closing operations on the received procedure tasks; the server end receives information of the initiating or closing operations executed for the procedure tasks sent by the client and hitches the information to the BIM model of a box beam with the corresponding serial number. The method establishes a server end and a client for practical production management of a beam yard based on BIM technology to complete issuing and uploading of production plans, so that the requirements for accurate and rapid transmission of construction production information are met.

The invention relates to a kind of intelligent capacity therapeutic equipment, comprising central processor, interior memory, power device, keyboard device, display device, alarm device, input control circuit, monitor interface, liquid speed monitor and liquid speed controller. The interior memory device is used to store program order and operation capacity therapeutic decision program in central processor and the record of patient capacity treatment. The central processor takes relative capacity therapeutic decision program from interior memory device according input patient information from keyboard device, makes patient initial capacity therapeutic program, carries out the capacity therapeutic program according to chosen working mode by doctors, feedbacks and moderates capacity therapeutic program according to sent patient physiological parameter from monitor and stores the capacity treatment record into interior memory device. The central processor also monitors and moderates transfusion speed according to got confirmed transfusion speed.

The invention discloses a C-reactive protein detection kit and a use method thereof. The kit comprises a reagent strip composed of a plurality of hole sites arranged side by side, and reagents in thereagent strip contain a CRP magnetic bead working solution and a CRP acridinium ester-labeled working solution; and the kit further comprises a calibrating substance, a pre-excitation solution, an excitation solution and a magnetic bead cleaning solution, and a magnetic rod sleeve is arranged in one of the hole sites on the reagent strip. The C-reactive protein detection kit and the use method thereof are based on a chemiluminescence immunoassay technique, and has the advantages of improvement of the sensitivity, the specificity and the precision of C-reactive protein detection, realization ofadaptation of detection to many sample types, and maximal elimination of the influences of sample differences on the detection.

The invention is applicable to the technical field of wind tunnel tests, and provides a high-pressure air resource consumption calculation method for a large-scale icing wind tunnel. The method comprises the following steps: constructing a topological structure model; establishing a monitoring system; acquiring the state of a large icing wind tunnel and the state of a high-pressure air system; acquiring field pressure consumed by the large icing wind tunnel; judging the air supply mode of the large icing wind tunnel; updating the topological structure model to obtain the pipeline volume V of the large icing wind tunnel; and calculating the high-pressure air resource consumption of the large icing wind tunnel through a differential pressure method. According to the method, the actual physical topological structure relationship between the high-pressure air system and the large-scale icing wind tunnel is expressed in a mode of constructing the model, so the air supply mode of the large-scale icing wind tunnel can be judged, and the high-pressure air resource consumption can be calculated according to different air supply modes.

The invention discloses a sheet invoice delivery core for an intelligent self-service invoice selling tax terminal, which comprises a box body, a paper feeding transmission mechanism, paper cutting mechanisms and a paper pressing mechanism, wherein a bottom plate is arranged in the box body, a left side plate and a right side plate are mounted on the bottom plate, and paper support wheels are mounted at the front ends of the left side plate and right side plate; a support shaft and a transmission shaft of the paper feeding transmission mechanism are mounted between the left side plate and the right side plate; the paper cutting mechanisms are mounted at the rear ends of the left side plate and right side plate, a drive motor is mounted below the left side plate, and an output shaft end of the drive motor is connected with a duplex synchronous belt wheel; a support block and a control plate are also mounted on the bottom plate, one end of the support block is connected with the bottom plate, and the other end of the support block is connected with the paper cutting mechanism; the paper pressing mechanism is mounted at the outer part of the box body. The sheet invoice delivery core disclosed by the invention has the advantages of flat delivered invoices, accurate counting of invoice sheets, flat cut and no invoice damage.

The invention discloses an interventional medical device and medical material testing system, and a corresponding experimental method. The system includes an experimental operation module and a detection device module, wherein the experimental operation module includes a test loop and a controller, the test loop is provided with a power device, a pulsating blood flow simulation device, an interventional medical device fixing device and a to-be-tested sample fixing device which are sequentially connected, the controller is used for controlling the power device, the pulsating blood flow simulation device and the to-be-tested sample fixing device according to control parameters, the detection device module includes a data collecting device, a parameter input device and a detection device, theparameter input device is used for transmitting the control parameters to the controller, the data collecting device is used for collecting test data of the test loop, and the detection device is used for detecting biochemical indicator data in the test loop. The system is advantaged in that the system provides a standardized test environment, adopts industry-recognized gold-standard testing equipment and provides uniform testing standards for testing of interventional medical devices and medical materials.

The invention discloses an electronics ageing test system. The electronics ageing test system is characterized in that the test system is a backend system controlling a PLC (programmable logic controller) module to be connected with a temperature module, a moisture module, a temperature regulating module, a moisture regulating module and a time regulating module respectively. The time regulating module is connected with a product to be tested. A signal source module is connected to the product to be tested after communicated with the PLC module. According to the arrangement, the electronics ageing system has the advantages that indoor temperature and moisture setting range is wide, optional continuous adjustment is achieved within the normal temperature within 85 degrees and 0%-100% RH (Relative humidity); with complete protection functions, the system is smoothly tested in a safe and stable manner; signal inputting and timing are performed according to the product performance, thus the on-line test of the electronics is accurate; reliability of the electronics is greatly improved.

The invention relates to a platinum-rhodium thermocouple fine wire material for quick temperature measurement and a preparation method thereof. The material comprises a positive pole PtRh30 material and a negative pole PtRh6 material. The positive pole PtRh30 material comprises the following components in parts by weight: 69.9-70.4 parts of platinum, 29.6-30.1 parts of rhodium, 0-0.003 part of yttrium, 0-0.003 part of zirconium and 0-0.003 part of cerium. The negative pole PtRh6 material comprises the following components in parts by weight: 93.8-94.1 parts of platinum, 5.9-6.2 parts of rhodium, 0-0.003 part of yttrium, 0-0.003 part of zirconium and 0-0.003 part of cerium. The yttrium, zirconium and cerium are dispersed in the material in the form of fine oxides. The oxides are represented by parts by weight of zirconium, yttrium or cerium. When the material is prepared into a platinum-rhodium couple wire, the minimum diameter is phi0.035mm, and the application range is phi0.035-0.07mm. The material has the advantages of high speed, accuracy and stability for temperature measurement, high reliability, high strength and the like.