59results about How to "Clear data" patented technology

The present invention is directed at a virtual machine environment operating on portable devices with limited resources. The virtual machine environment includes a method for managing dynamically generated code and data together in order to shift memory usage to/from generated code or data as needed. Each application domain manages several code pools and several garbage collection pools that are allocated from a system memory heap. When additional memory is not available for allocation from the system memory heap, garbage collection is performed until sufficient memory becomes available. During garbage collection, unreachable data in each garbage collection pool is cleared. The garbage collection process may further compact the garbage collection pools in order to empty one or more of the garbage collection pools. Still further, code pools may be released back to the system memory heap if the generated code is not associated with a current application domain, is executed infrequently, or is not associated with an instruction on a stack. Thus, memory may flow from data to code or vice versa as needed and among application domains.

A method for gaze tracking achieves high performances at the same time requiring both limited processor engagement and reduced power, so as to be particularly but not exclusively fit for mobile uses is described. The method includes the steps of: obtaining a digital video stream of a face through a camera, wherein eyes or pupils are identified in corresponding boxes in the spatial domain, the size thereof being function of the face position and orientation relative to said camera, the content of the boxes being the input for the further calculations; transferring the content of the boxes to the frequency domain; applying to the boxes transferred to the frequency domain one or more sparse zones, covering together a fraction of the boxed area transferred to the frequency domain, and a filtering kernel, at least partially overlapping the sparse zones; performing a multiplication between the frequency data within each sparse zone and the kernel, combining the results in a single value for each sparse zone; and repeating the above steps obtaining for each frame said single value, fluctuation of the single value being representative of gaze direction changes along time.

An industry investment information and data processing system based on a strength, weakness, opportunity, and threat (SWOT) model comprises an automatic collecting module of industry information on the internet and an industry information manual additional recording module, an information screening processing module, an SWOT analyzing module, an influence quantizing module, an SWOT index processing module, and an information and data output terminal, wherein an information collecting classifying server comprises the automatic collecting module of industry information on the internet and the industry information manual additional recording module, and an information and data processing server comprises the information screening processing module, the SWOT analyzing module, the influence quantizing module, and the SWOT index processing module. The automatic collecting module of the industry information automatically grasps the industry information on the internet. The information screening processing module automatically conducts screening, eliminates duplication and unifies forms, the SWOT analyzing module divides all sub-industry information into a part of strength (S), a part of weakness (W), a part of opportunity (O) and a part of threat (T). The SWOT index processing module sets an influence probability coefficient for the information and obtains SWOT analysis investment indexes. The industry investment information and data processing system based on the SWOT model can automatically search, grasp, screen and process the industry investment information, generates the information and the investment indexes which are classified according to sub-industries and, achieves classification, storage and output of the information and the indexes according to categories including S,W,O, and T.

A misfire detecting device and method detects a misfiring state of an engine. A memory stores misfire-frequency data relating to a frequency of occurrence of a misfire of the engine, and a controller determines, on the basis of the misfire-frequency data, whether the misfiring state of the engine has occurred. The controller initiates a misfire detecting operation of detecting an occurrence of the misfire of the engine when a predetermined first condition is satisfied, and initializes the misfire-frequency data stored in the memory when a predetermined second condition is satisfied. The first condition indicates that the engine has entered into its firing state by cranking of the engine for starting thereof, while the second condition indicates that the engine has failed to enter into its firing state by the cranking. The misfire detecting device permits accurate detection of the misfiring state of the engine, irrespective of repeated cranking operations of the engine due to its repeated firing failures.

Provided are a financial market bargaining transaction display system and method. The system comprises a financial data obtaining module, a data curve drawing module, a transaction direction display module and a transaction data output module. The method includes the steps of obtaining real-time data, namely property real-time prices of various transaction varieties, in a transaction system of a financial exchange; obtaining price rising or falling trend data of the various transaction varieties according to the property real-time prices of the transaction varieties, drawing a data curve and discriminating price rising trends or price falling trends with different colors; indicating rising prices with an upward arrow and marking falling prices with a downward arrow in the data curve; outputting and displaying the drawn data curve. Price rising or falling trend data of the various transaction varieties in the financial market serve as display bases, the price rising trend or the price falling trend is displayed, an overall price trend situation and a trend inversion point of the market are vividly reflected, and the data are clear and reliable.

The invention provides a coating process of a carbon fiber fishing rod. The coating process of the carbon fiber fishing rod sequentially comprises the steps of: degreasing, decontaminating, cleaning and drying a fishing rod, sealing and plugging the mouth of the fishing rod by using a silicone head; vertically hanging the fishing rod on a hanger and spraying paint up and down by a numerical controlled DISK electrostatic spraying device, then entering a leveling region for leveling within 10-15 minutes, irradiating 8-15 minutes by far infrared rays to solidify the fishing rod. By adopting the method provided by the invention, the surface of the sprayed fishing rod is smooth and full, the painting rate of dead angles is high, the whole fishing rod is painted evenly, the brightness is high, the adhesive force is good, the stable product quality is ensured, bad phenomena such as color distortion and bubbling are avoided, the paint film is 50% thinner than the conventional paint and the whole fishing rod has less paint; besides, the painting way is lighter than the traditional way and is independent of skilled labors with high spraying seed and high efficiency.

The invention provides a traffic information query method and device. The traffic information query method comprises obtaining a target area and a target time to be queried; determining the numbers of subareas contained in the target area and unit times contained in the target time; obtaining one or more than one historical traffic information file according to the numbers of the subareas and the unit times, wherein the collected traffic information is stored corresponding to the numbers of the subareas every set time section according to a set directory and a set format to generate the historical traffic information file; querying the historical traffic information file according to query conditions. According to the traffic information query method and device, the traffic information can be searched accurately and rapidly, the query efficiency is high, and the backup maintenance is simple and convenient.

The invention discloses a disk performance evaluating method based on a database. According to the method, based on disk performance evaluation on the aspect of the database, the performance condition of a disk in a server on the practical application of the database is detected. The method specifically comprises the steps that a system is installed, and parameters of the system are configured, wherein an application server is prepared according to a practical application, the operation system is installed, and the parameters of the system are configured; the database is installed, and parameters of the database are configured, wherein a database GP is installed, and related user and environment variable parameters are configured; the database environment is debugged, wherein the database environment is configured according to system information, and related files are established to facilitate subsequent tests; the disk is configured, and the performance of the disk is tested; the disk needing to the tested is partitioned and mounted in the system, and a testing command is executed to carry out reading-writing operation on the disk; the reading-writing performance condition of the disc is checked according to a result; the implementing steps are completed in the server provided with the operation system with a linux kernel, and a user logs into the server with the root identity in operation.

The invention discloses a distribution network operation maintenance and fault repair system based on big data and an operation method. The system comprises a system platform host and a system platform database,and the system platform host is linked to the system platform database through a network; a mobile work terminal is linked to the system platform host through a wireless network; a monitoring terminal is linked to the system platform host through a wired network or a wireless network. The technical problems in the prior art are solved that since operation maintenance of distribution network lines is manually conducted by operation maintenance personnel,device data is unclear,the line direction is unclear,operation,inspection and repair records are incomplete,there is no effective means to organize and analyze the data,and it is difficult to achieve accurate differential operation maintenance.

The invention discloses a time-frequency analysis and tracking method for a passive sonar target, and belongs to the technical field of underwater acoustic signal detection. The method comprises the steps: independently carrying out the Fourier transform of each beam domain signal; carrying out the superposition of the data after Fourier transform, and obtaining a group of frequency domain data; selecting corresponding spectral line data from the data after Fourier transform according to the demands of a needed frequency band; carrying out the frequency domain time accumulation and smoothing processing; obtaining the tracking azimuth of an recorded target frequency spectrum, and carrying out the tracking through Kalman filtering. The method provided by the invention can obtain the frequency spectrum information with higher resolution, has more visual data in tracking display, enables the frequency information of a noise signal to be clearer, and provides more favorable data informationfor the subsequent target recognition and judgment.

The invention discloses a system and a method for monitoring energy consumption cost of a spiral feeding type small-sized steam boiler on line, which can acquire energy consumption and cost data of the boiler in time, accurately calculate single-circle energy consumption cost and unit steam energy consumption cost and provide a basis for the improvement on the average operating efficiency of the boiler so as to achieve an energy-saving effect. In the system, a steam flow instrument, a fuel using amount monitoring device, an electricity meter and a water power flow instrument are in communication connection with a computer, so that the energy consumption cost of the boiler can be conveniently measured; the energy consumption cost is reduced to the lowest limit by reasonably adjusting the operating condition and the fuel of the boiler through the energy consumption and cost data which is monitored in real time by the system; simultaneously, all parameters are monitored on line, data acquisition and calculation processes are finished by the computer, and the authenticity of the data is reflected; and the on-line monitoring method provides in-time and accurate energy consumption data and technical indexes for the operation of the boiler.

Embodiments of the present invention provide a method, an apparatus and a system for managing document rights. In the method, the apparatus and the system for managing document rights which are provided in the embodiments of the present invention, a server receives a rights request from a client, where the rights request is used for obtaining rights information of a document; determines, according to the rights request, whether the first rights information of the document is saved; when the first rights information is not saved, sends, to the client, the second rights information corresponding to the document confidentiality level, so that the client decrypts the document according to the second rights information; and when the first rights information is saved, sends the first rights information to the client so that the client decrypts the document according to the saved first rights information.

The invention discloses a water turning wheel type fatigue tester which comprises an L-shaped tester host, wherein the tester host is formed by connecting a horizontal base and a vertical support part; the support part is located at the left end of the base; the base of the tester host is horizontally provided with two strip-shaped convex edges along the length direction of the base; the tester host is provided with a transparent rectangular water tank, the bottom of which is located between the two strip-shaped convex edges. The water turning wheel type fatigue tester can embody the basic quintessence of the traditional swimming way, play the work principle of an advanced turning wheel type running machine, obtain a final fatigue exhaustion state without any traumatic driving way, and can save the animal resources to the maximum extent; such testing method is obviously more reliable, more real and more suitable for the large-sample tests. The water turning wheel type fatigue tester is controlled by a computer, has clear data, and is simple in structure, combined simply, cleaned rapidly, energy-saving and environment-friendly.

The invention relates to a bronze-mirror cultural relic identification system which is constructed based on a bronze-mirror cultural relic characteristic matrix and a neural network model. The systemis characterized by acquiring image data of a bronze mirror, and according to a characteristic set, constructing a hierarchical grayscale co-occurrence matrix; and based on a classical convolutional neural network CNN model of a deep learning field, constructing a self-feedback parameter-adjusting neural network model applied to bronze mirror identification. Different hierarchies of effective identification can be performed on the bronze-mirror cultural relic, and through collecting feedback information of a user to an identification result, iteration optimization to the bronze-mirror culturalrelic identification system is reinforced.

The invention relates to an elongation measurement tool for a stator iron core tension screw of hydraulic turbine generator, belonging to the technical field of hydraulic turbine generator and characterized in that: the elongation measurement tool for the tension screw is composed of a brace, an upper measurement rib, a lower measurement rib and a measurement dial indicator, wherein the brace is equipped with the upper and lower measurement ribs, and the lower measurement rib is provided with the measurement dial indicator. The elongation measurement tool according to the invention has the advantages of simple structure, convenient operation, low cost, good practicability, saving time and labor, accurate and reliable data, high press-mounting accuracy of iron core, good press-mounting effect, etc.

The invention provides a method for visualizing singing and playing score image. The method comprises the following steps: S1, analyzing a music score produced by a teacher or a teacher into serialized data, and storing the data with the pitch value and corresponding time value of each note; S2, storing the music score in the serialized data; S3, storing the music score in the serialized data. 2,score that singing and play, dividing the singing and playing sounds by N unit time, calculating the corresponding tone data, comparing the tone data with the tone data of the corresponding time of the music score, and obtaining the scoring result; S3, visualizing the music score, and displaying the pitch value and the corresponding time value of the music score on the image with the five-line score; 4, dynamically play that comparison between the singing sound and the music score, and displaying the pitch value correspond to the singing sound and the length corresponding to the time value onthe pictorial music score described in S3 in different colors to form a contrast display. The method visualizes and displays the music score, and compares the singing and playing according to the music score as the standard to obtain the score result.

The invention discloses a laser radar control method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the optical signal detection of at least one receiving unit of a laser radar in response to the condition that a scanning device is in a flyback mode, and obtaining a detection result of the at least one receiving unit; determining optimized working parameters for the laser radar in response to the detection result; and performing working parameter configuration on the laser radar based on the optimized working parameters. According to the invention, ambient light sensing is carried out in the flyback mode, and the working parameters of the laser radar are further optimized according to the ambient light sensing result, so that the point cloud data of the scanning area in the scanning mode is clearer, and the detection effect of the laser radar is more accurate.

The invention provides a method for generating a product label. The method includes the following steps: using an electronic hook balance to detect the weight of product; inputting or selecting the parameter and name of the product by a keyboard; matching the weight of the product with the corresponding parameter and name of the product; sending matched weight checking data containing the weight, parameter and name of the product to a label printer; and driving the label printer to print a product label containing the weight checking data. As adopting fully automatic weighing and printing, the method for generating the product label can lead to exacter and clearer data on the label and avoids that the product weight written by hand is difficult to recognize due to clerical errors or dim letters.

The invention relates to the technical field of robot welding, in particular to an intelligent robot welding system. A laser scanner, a parameter detection module, a parameter adjustment module, a camera shooting module, a welding gun control module and a communication module are connected with a welding control module. According to the system, data can be preferably detected, the welding precision is ensured, and the failure rate is reduced.

The invention provides a turbonator rotor winding turn-to-turn electromagnetic pulse wave characteristic detection device and method, and belongs to the technical field of turbonator rotor winding turn-to-turn detection. A high-order mutation electric field of an avalanche polarization edge is generated through a signal source and a time sequence control circuit, circular polarization electromagnetic waves which are symmetrically deflected by 180 degrees and are generated through a parasitic inductive power supply are clockwise or anticlockwise coupled to a positive electrode and a negative electrode through positive and negative electrode load wave guide lines, and a first sine wave is generated through mutual inductance of a positive electrode first turn and a negative electrode first turn in sequence; energy can return to the inductive parasitic power supply and is sequentially conducted to the second turn due to time delay; the inductive power supply and the second turn start circular polarization to feed back energy to the first turn; the turns are fed back and superposed step by step in sequence, and each coupling turn shows sine waves with the same time constant. The real electromagnetic characteristics of each forward or reverse symmetrical corresponding turn of the positive and negative pole windings can be clearly, simply and intuitively presented in a one-to-one correspondence manner.

The invention discloses a real-time monitoring system for automatic production. The system comprises a processing end, a production information collection end, a management center and a cloud server;the processing end comprises a control module used for signal processing, a communication module used for signal receiving and sending and a data statistics module used for data integration; the processing end is connected with the production information collection end, the management center and the cloud server through the communication module; the production information collection end comprisesa production processing information module, a finished product detection information module and a rework processing information module. The production processing information module, the finished product detection information module and the rework processing information module respectively collect processing information, detection information and rework information in the production process. The management center is provided with a display terminal, and the cloud server is provided with a database. According to the invention, the production information of the automatic production line can be monitored, so the production data of the production line is more intuitive and convenient for managers to adjust.