589results about How to "Achieve preservation" patented technology

The invention relates to the field of occupation of the mass data memory space and backup and recovery of historical data, and in particular provides a data recovery and synchronization method based on log snapshots. The data recovery and synchronization method based on the log snapshots adopts log files with given format to record changed information of data of databases each time; the changed information is formatted, positioned and stored into the log files; an analytic program calls an approximate algorithm to acquire effective data on set time points by means of multithreading; the data is temporarily stored into a temporary table, and abstract data snapshots are generated according to the temporary table; and data recovery and synchronization is realized by utilization of the snapshots. The data recovery and synchronization method based on the log snapshots can greatly reduce the burden of a database system, obviously improve the efficiency of the database system and an application system, save a great deal of memory space, and reduce the operation cost of the systems.

The invention relates to a system for identifying the relationship among a user group and users by the aid of user feature data, which comprises a user data warehouse, an intermediate data acquisition and storage device, a feature data acquisition and storage device, a feature data identification and analysis device and a display output device, wherein the user data warehouse is used for storing original user data; the intermediate data acquisition and storage device is used for extracting data related to user features from the user data warehouse; the feature data acquisition and storage device is used for acquiring the user data processed by the intermediate data acquisition and storage device and converting the acquired user data into the user feature data; the feature data identification and analysis device is used for analyzing and processing the user feature data stored by the feature data acquisition and storage device and identifying the relationship among the user group and the users; and the display output device is used for outputting corresponding results. The invention further discloses a method for identifying the relationship among the user group and the users by the aid of the user feature data. The system and the method realize identification of the user features and the relationship.

The invention discloses a method for preserving nucleic acid amplification reagents at normal temperature. Partial nucleic acid amplification reagents or all reagents are converted to solid state through a solidifying process and preserved stably at normal temperature. The invention further discloses a closed nucleic acid chromatographic test paper detection kit preserved at normal temperature. The kit comprises a nucleic acid extraction reagent of a sampler, the nucleic acid amplification reagent preserved at normal temperature, a closed chromatographic test paper detection device and an innocent treatment method of nucleic acid amplification products. The closed chromatographic test paper detection device comprises immunochromatographic test paper and a closed detection device, wherein the immunochromatographic test paper is fixedly arranged in the closed detection device, and sample liquor detected cannot be contacted with external environment. In addition, the invention further discloses a method for nucleic acid detection by using the kit. According to the invention, the nucleic acid reagents can be conveyed and preserved at normal temperature and extracted simply and quickly, and the nucleic acid amplification products are hermetically, quickly and sensitively detected, so that cross infection is avoided.

The invention belongs to the technical field of plant tissue culture and particularly relates to a factory seedling cultivating method of actinidia arguta. The method is mainly technically characterized by comprising the five steps of: preparing culture media, selecting and disinfecting explants, inoculating, subculturing and transplanting in a sand bed. The factory seedling cultivating method of actinidia arguta is mainly provided on account of the conditions that actinidia arguta is in a wild state in all northeast areas, and the traditional cultivating modes which comprise sowing propagation, cuttage propagation and grafting propagation cause the problems that the variation of offspring characters is serious, male plants are difficult to separate from female plants, resources are seriously damaged, the seedling cultivating speed is low, the characters of the female plants are difficult to keep, the plants are easily infected with bacteria, the survival rate of the seedlings is low, and the like. Induced buds are subcultured and then directly transplanted in the sand bed, the rooting culture process is omitted, the seedling cultivating period is shortened by 50-60 days, the seedling cultivating cost is greatly lowered, the survival rate of the seedlings is obviously increased, the plant infection rate is reduced, excellent female plant characters are kept, and the variety degrading problem is solved.

The invention provides a micro miniature aircraft ground test attitude recorder. The recorder combines sensors such as an MENS gyroscope, an accelerometer and a digital compass, so that the original flight attitude data of an aircraft can be obtained; based on utilization of the mean filtering method for processing, the flight attitude data is partitioned and packaged as per a defined data format; the partitioned and packaged data is sent by a wireless sending module to a data combining unit of an upper computer for processing in the integer form and in a real-time manner; the fusion of flight attitude data is realized by utilizing an attitude resolving unit, so that the flight attitude can be updated quickly in a real-time manner. The attitude resolving unit mainly applies the quaternion complementary filtering method, and can efficiently integrate the dynamic property of the gyroscope and the static response property of the accelerometer so as to compensate the integral error of the gyroscope. According to the data obtained after attitude resolution, a visualization unit module drives an aircraft model based on OpenG1 graphic base development to realize visualized simulation of the flight attitude, and presents the angular position movement in a wavy curve by utilizing a waveform drawing module.

The invention provides a method and device for workflow data persistence. The method includes extracting declared service information in configured files of a server terminal; establishing a dynamic proxy class for a declared server interface in the configured files of the server terminal, and generating strategy configured information of the server interface; acquiring target workflow data to be subject to persistence; transferring the server interface for workflow data persistence to acquire the dynamic proxy class, and assembling the target workflow data into an event in the dynamic proxy class; running the event according to the configured information of the workflow data persistence strategy, acquiring workflow data persistence server information corresponding to the event, and performing persistence on the target workflow data according to the workflow data persistence server information. By the aid of the method and device, maintaining cost can be saved, and scalability of workflow products can be enhanced.

The invention relates to a device for measuring rotational inertia and friction moment of a ball screw. The device comprises a bottom plate, two linear guide rails, the ball screw, a torque sensor, a servo motor, a mobile platform and two friction moment measuring mechanisms. Each linear guide rail is provided with two sliding blocks. The two ends of the ball screw are supported by the part, located between the two linear guide rails, of the bottom plate in a rotary mode through a fixed supporting base and a floating supporting base. One end of the torque sensor is connected with the end, supported by the fixed supporting seat, of the ball screw through a coupler. An output shaft of the servo motor is connected with the torque sensor through a coupler. The two friction moment measuring mechanisms are arranged on the two sides of a screw nut base respectively. Each friction moment measuring mechanism comprises a cantilever. A connecting sleeve is arranged at the tail end of each cantilever. Each connecting sleeve is connected with a sliding bar through a vertical linear bearing. The other end of each sliding bar is connected with a pressure sensor. Each sliding bar is sleeved with a spring. The bottom of each pressure sensor is connected with a universal ball. The bottom of each universal ball makes contact with a linear slab which is parallel to the ball screw. The linear slabs are tightly connected to the bottom plate.

The invention relates to an unmanned vehicle multi-sensor data synchronous acquisition system which comprises an environment awareness data acquisition device, an Ethernet switch 1, an inertial navigation data acquisition device, a vehicle control unit, an instruction issuing and vehicle state feedback Nport, an Ethernet switch 2, a planning industrial personal computer, a sensing industrial personal computer, a CAN data acquisition device, a CAN network, and a CAN network data acquisition device. The planning industrial personal computer stores CAN network data, a corresponding relation between bottom layer time issued by the vehicle control unit through the CAN network and the time of the timer of the CAN data acquisition device, and inertial navigation data. The sensing industrial personal computer stores environment awareness data, and achieves synchronous association of the CAN network data, the environment awareness data, and the inertial navigation data using the bottom layer time issued by the vehicle control unit as marks. A test shows that the unmanned vehicle multi-sensor data synchronous acquisition system is stable and reliable, and provides technical guarantee for the synchronous replaying of the unmanned vehicle environmental information data, the navigation and positioning data, the vehicle attitude information and vehicle bottom state information.

The invention relates to the field of experiment test instrument of a soil engineering material of geotechnical engineering and in particular relates to an intelligent soil engineering shear rheometer. The rheometer consists of an experiment platform, a loading system, a data acquisition system and a data processing system, wherein the experiment platform ensures the horizontality and stability of an experiment test; the loading system consists of a vertical loading system and a horizontal loading system, and realizes the loading through weights to ensure the load accuracy; the data acquisition system consists of a displacement meter and a tension sensor, has a relatively high accuracy, transmits and receives a data signal in a wireless manner, and ensures remote processing and monitoring of an experiment; and the data processing system realizes the functions of real-time automatic acquisition, storage, display and processing of data through software development. Compared with the prior art, the intelligent soil engineering shear rheometer provided by the invention has simple operation steps and relatively high experiment accuracy, realizes remote operation, and has a relatively high degree of intellectualization and relatively great application values for a soil engineering rheological test experiment.

A method and device for controlling data redundancy in cloud storage. The core of the present invention is to create a corresponding virtual data copy counter for each stored data in the cloud storage layer and write it into an associated database together with other relevant information such as the data summary and storage location. The terminal user uploads the summary of the operated data before requesting the data operation; if there is a virtual data copy counter associated with the summary of the operated data, the user's upload, delete and other operations are converted into operations on the virtual data copy counter ( Upload is transformed into a virtual data copy counter plus one, and deletion is transformed into a virtual data copy counter minus one); if the summary of the manipulated data has no virtual data copy counter associated with it, the end user needs to upload the manipulated data, and in the associated Relevant information is saved in the database; at the same time, the associated database will also save the name (such as: file name, data table name, etc.) of the data represented by the summary in the end user's local storage, so that the end user can query, download, and delete.

The application discloses a display terminal and an electronic device; the display terminal comprises a flexible screen, a scroll, and a first supporting structure. The first side of the flexible screen is fixedly connected to the scroll, and the flexible screen can be expanded or coated on the scroll along the rotation of the scroll; the first supporting structure is arranged at the second side of the flexible screen, and the first side is adjacent to the second side; the first supporting state can keep the flexible screen under a straight state when the flexible screen is unfolded. Through arranging the scroll, the flexible screen can be coated on the scroll along with the rotation of the scroll, so as to store the flexible screen; when the flexible screen is unfolded, the flexible screen can keep straight state by the supporting structure; thus a user needs not manually or use another structures to momentarily keep the structure state of the flexible screen; therefore, the using experience of a user is obviously improved.

The invention provides an oil level monitoring method of an oil storage system of an oil-immersed transformer. The oil level monitoring method comprises the following steps that first, a pressure sensor is mounted on the oil-immersed transformer for collecting pressure signals to calculate the average temperature of transformer oil; second, the expanding volume of the transformer oil is calculated according to the average temperature of the transformer oil; third, the oil level of the oil storage system is calculated according to the expanding volume of the transformer oil and the shape of the oil storage system of the oil-immersed transformer to obtain corresponding oil level signals; when the oil level or oil pressure exceeds a set safety value, a monitoring terminal sends out alarm signals. The invention further provides an oil level monitoring system based on the oil level monitoring method. The oil level monitoring system comprises the pressure sensor arranged on the transformer and the monitoring terminal connected with the output end of the pressure sensor. The monitoring terminal is used for converting the pressure signals collected by the pressure sensor into oil level signals and meanwhile monitoring the oil level signals and the pressure signals. When the oil level signals or the pressure signals exceed the safety value, the monitoring terminal sends out an alarm.

The invention discloses a bone-defect regeneration and repair tissue-engineered bone, as well as a construction method and an application thereof. The tissue-engineered bone is a composite laminated structural body formed by three layers of mesenchymal stem cell polymers and two layers of bone matrix particles, wherein the composite laminated structural body is a complex formed by mesenchymal stem cell polymers and bone matrix particles which are alternately arranged; the mesenchymal stem cell polymer comprises mesenchymal stem cells and extracellular matrix which is secreted by the mesenchymal stem cells and is distributed around the mesenchymal stem cells. The tissue-engineered bone formed by adopting the construction method can be used for simultaneously compounding living cells and active factors, the repairing and reconstructing process is quick, the joint of new bone and surrounding autogenous bone is complete and uniform in thickness. The tissue-engineered bone is suitable for bone-defect regeneration and repair, physiological regeneration of bones is realized, and the repairing treatment effect of bone defect is improved.

The invention discloses a hydraulic engineering digital archive system based on a BIM+GIS. The hydraulic engineering digital archive system comprises an archive data acquisition system, an archive data integration system, a BIM+GIS platform, an archive management system and an archive application system. The BIM+GIS platform takes a three-dimensional model as a carrier; the correlation between thestructured IFC model data and the unstructured document data is realized; meanwhile, a portal interface of the whole archive system is formed. In the invention, a BIM+GIS technology is taken as a core, data communication and sharing with various application systems are realized, scattered and disordered archive information in a water conservancy project is hooked with a three-dimensional model, interactive query and linkage management based on spatial position information are realized, and an informationized and efficient archive management mode is innovated.

The invention discloses a leakage-current monitoring system in a flashover process of an icing insulator. The monitoring system includes a front end circuit and a data acquisition and processing device. The front end circuit includes a diverter for signal extraction. The diverter used for the signal extraction is connected with the front end circuit used for signal conditioning through a transmission cable. The front end circuit used for the signal conditioning is connected in parallel with a DC power-supply circuit; the data acquisition and processing device includes a data acquisition card, an industrial personal computer and a data storing, processing and analyzing platform, which are connected in order; and the data storing, processing and analyzing platform displays the waveform of the leakage current and stores, analyzes and prints out acquired data. The leakage-current monitoring system in the flashover process of the icing insulator is capable of monitoring the leakage current and development and changes of local electric arcs in the flashover process of the icing insulator so that measurement, storage and analysis of a current completing process are realized.

The invention discloses a webpage input data protection method and a webpage input data protection system. The method comprises the following steps of: identifying webpage input data required to be protected in a webpage; storing the webpage input data required to be protected; and if an error phenomenon takes place before a user finishes a certain input process, providing the webpage input data for the user aiming at the input process. By the method and the system, the data input by the user can be protected and shown to the user; and even if error conditions such as browser collapse and the like occur, the data input by the user can also be stored for the user to use.

The invention provides an electronic contract online signing process action recording method. The method includes the following steps that: a virtual contract signing room is established, and two contracting party users complete the online contract signing process of an electronic contract in the virtual contract signing room; step S2, the virtual contract signing room receives the login requestsof the contracting users, and authenticates the identities of the contracting users, after the identities of the contracting users pass authentication, the contracting users enter a contract reading area and interprets the electronic contract, the interpreting process of the electronic contract by the contracting users is recorded; the contracting users enter a contract exchange region during thesigning process of the electronic contract, so as to exchange with relevant users on the contract and interpret the contract together with the relevant users; and the contracting users enter a contract confirmation region and confirm the contract after having no objections to contract terms and contract items in the electronic contract. With the method of the invention adopted, the signing processof the electronic contract is optimized, the action recording of the online contract signing process of the electronic contract is realized, evidences of the signing of the contract are reserved, anddispute problems which appear after the signing of the contract can be decreased.

The invention relates to a traffic collection system based on video monitoring, and the method comprises the steps: detecting the traffic flow of a road through the image processing and recognition technology and a video signal; achieving the automatic statistics of the number of motor vehicles running on a traffic road segment and the calculation of the running speeds through the real-time detection of the traffic condition information of the road and various types of behaviors of traffic targets, thereby achieving the monitoring of the traffic condition information of the road; building a road network scheduling system through the real-time data collected by a traffic flow monitoring system; issuing the collected traffic flow information through an LCD screen. The method provides the real-time road conditions, and achieves the guide of vehicles to pass reasonably.