31results about How to "Efficient reading and writing" patented technology

The invention discloses a data synchronization method and device. The method comprises the steps of reading a catalogue index file in a first data source, thereby obtaining data catalogues of n applications contained in the catalogue index file; reading a data index file Ei contained in the data catalogue Di; resolving an update configuration file of the application Ai, thereby obtaining catalogues of target data and a type attribute of the target data in the application Ai, wherein the target data is the data on which data synchronization needs to be carried out; and converting a data structure of the data in the first data source according to the change information in the data index file Ei and the type attribute of the target data, wherein a second data source obtains the data after the data structure is converted in the first data source, thereby finishing data synchronization. According to the method and the device, the technical problem that in the prior art, the synchronization performance of the data between different databases is relatively low due to the fact that a user cannot screen the data needing to be synchronized according to the demand of the user is solved.

The present invention aims at improving the usability of recording media and providing efficient read and write processes. A header control portion 53 generates a header arranged at the beginning of a file. A footer control portion 52 generates a footer arranged at the end of the file. A filler control portion 54 generates a filler so that the data amount of a body, the header, or the footer of the file corresponds to an integral multiple of an ECC block on an optical disk by adding the filler to the body, the header, or the footer. A KLV encoder 55 KLV-encodes a filler for the body according to the KLV structure. The present invention can be applied to a disk apparatus that records video data or audio data on optical disks.

The embodiment of the invention provides a data processing method, a data processing device and a storage medium, which are used for improving reading efficiency of data records on the basis of combining use convenience of a relational database. In the embodiment of the invention, a server can receive an inquiry request, and according to to-be-inquired conditions in the inquiry request, the servercan determine indication information used for indicating at least one data record corresponding to the to-be-inquired conditions from an inquiry table in a non-relational database; and the server cansend the acquired at least one data record corresponding to the to-be-inquired conditions. Since the server in the method and the system in the embodiment of the invention can directly read associated data records from the non-relational database, and the non-relational database itself has a feature of high reading-writing efficiency, the method and the system improve reading efficiency of data records on the basis of combining use convenience of the relational database.

The invention discloses a high-definition real-time monitoring video efficient transmission method. The method is realized on the basis of an ARM video transmission board by adopting a multi-input multi-output system of technologies of multi-thread processing, multi-level data caching, high-concurrent mutual exclusion access and the like. The hardware mainly comprises the ARM video transmission board, a USB high-definition camera and a power supply module; and the software treating process mainly comprises a multi-camera input part, an image data warehouse and a multi-request output part. The method occupies a few resources, is efficient in operation, can guarantee the quality and the instantaneity of high-definition real-time video, and is applicable in the field of real-time video monitoring, particularly in the fields having high efficiency requirement, limited hardware resources and efficient software method requirement.

The present invention is directed to the storage technical field and discloses an on-chip data partitioning read-write method, the method comprises: a data partitioning step for storing on-chip data in different areas, and storing the on-chip data in an on-chip storage medium and an off-chip storage medium respectively, based on a data partitioning strategy; a pre-operation step for performing an operational processing of an on-chip address index of the on-chip storage data in advance when implementing data splicing; and a data splicing step, for splicing the on-chip storage data and the off-chip input data to obtain a representation of the original data based on a data splicing strategy. Also provided are a corresponding on-chip data partitioning read-write system and device. Thus, read and write of repeated data can be efficiently realized, reducing memory access bandwidth requirements while providing good flexibility, thus reducing on-chip storage overhead.

The invention discloses a secure distributed database interaction method suitable for a mobile positioning system. The secure distributed database interaction method comprises seven modules, wherein arest data transceiving and attribution region division module is used for receiving client data and determining an attribution through an improved trie tree algorithm; a read-write separation local database module designs a statistical-based read-write separation algorithm to carry out read-write separation and temporary table establishment; a local key agreement module is used for designing a key agreement protocol on the basis of the pre-shared key and generating a session key; an attribution secret key negotiation module interacts with the local secret key negotiation module to generate asession secret key each time; a local data encryption and decryption and integrity protection module is responsible for encryption and decryption of local interaction data through an improved SM4 encryption algorithm; an attribution data encryption and decryption and integrity protection module is used for realizing encryption and decryption of attribution interaction data by designing and improving an SM4 encryption algorithm; and a read-write separation attribution database module is used for realizing read-write of the attribution database based on a statistical read-write separation algorithm.

The invention discloses a data storage method based on a cloud platform. The method comprises the following steps: receiving a storage request of target data in the cloud platform, obtaining operationstate information of each storage node in a storage cluster corresponding to the cloud platform, determining the storage ability of each storage node according to the operation state information of each storage node, determining a first storage node used for storing target data according to the storage ability of each storage node so as to store the target data on the first storage node. By application of the technical scheme provided by the embodiment of the invention, the load balance of each storage node can be achieved, the situation that efficient reading and writing cannot be provided for users due to the heavy load of the storage node can be reduced, and durable and efficient storage service can be provided for the users. The invention further discloses a data storage apparatus anddevice based on the cloud platform, and a storage medium, which have the corresponding technical effects.

The embodiment of the invention provides a processing method and device for reading and writing a log. The method comprises the following steps: determining a process level of the process according toa writing performance parameter of the process required by the log to be written; determining a sharing mode of the process sharing data buffer according to the process level; according to the sharing mode, allocating to a target data buffer corresponding to the process corresponding to the process level, so that the process performs a write operation to the log according to the target data buffer; after completing the write operation, reading the written logs based on an algorithm for sequentially reading logs based on a minimum heap. The device performs the method described above. The processing method and the device for reading and writing the log provided by the embodiment of the invention determine the target data buffer area based on the process level, after the log is written intothe target data buffer area, the log written is read based on the algorithm of reading the log by the minimum heap according to the sequence, and the log can be read and written efficiently.

The present invention is directed to a system that enables a user (an associate, a data specialist, a researcher, an adjuster, an agent, a teller, or the like) of a financial institution to quickly and accurately validate a repository of an enterprise content management platform. The user typically utilizes the system of the present invention to schedule and/or execute a variety of validation processes for one or more repositories. For example, the user may test read and write capabilities of a particular storage of a server. Once execution of desired validation processes is complete, the system of the present invention generates a report based on the completed validation processes. The generated report may assist the user in identifying unwanted errors in repository performance.

The embodiment of the invention provides a label printing device. The label printing device comprises a machine body and a read-write antenna. A paper channel frame is arranged in the machine body andprovided with a paper feeding channel, the paper feeding channel is used for allowing labels to pass through, the machine body is provided with a paper outlet, and the paper feeding channel communicates with the paper outlet and is used for communicating with the outside through the paper outlet. The read-write antenna is arranged in the machine body, located on the side, provided with the paperfeeding channel, of the paper channel frame and faces the paper feeding channel. According to the label printing device, when a label passes, the read-write antenna is located above the label, and therefore the problem that an antenna is arranged below a paper channel frame and cannot well penetrate through a metal sheet to read and write the label is avoided, and it can be guaranteed that the label is well read and written; and after the label is output through the paper outlet, the part, drooping due to gravity, of the label is far away from the read-write antenna at the moment, and the problem that previously, an antenna is arranged below a paper channel frame, and consequently, cross reading is prone to being caused when the label already output from the paper outlet is read and written is avoided.

The invention discloses an LNG (Liquefied Natural Gas) distributed energy internet of things system with a multi-stage management platform. The system comprises an object platform, a sensing network platform, a comprehensive management platform, a service platform and a user platform, the object platform is used for collecting operation and maintenance information and receiving and executing a control instruction; the sensing network platform is used for uploading the operation and maintenance information collected by the object platform and issuing a control instruction to the object platform; the comprehensive management platform is used for performing hierarchical management and data analysis on the uploaded operation and maintenance information, generating a control instruction and issuing the control instruction; the service platform is used for receiving a user demand of the user platform and returning the obtained operation and maintenance information of the user demand to the user platform; and the user platform is used for receiving a demand of a user, sending the demand to the service platform and returning the operation and maintenance information obtained from the service platform to the user. According to the method, the universality of the data is improved, efficient reading and writing of the data are achieved, efficient collaborative parallel scheduling execution tasks can be achieved, and effective fusion analysis processing of the energy data is achieved.

The invention discloses a rapid data access protection method for a wifi6 router, and relates to the technical field of router data access, which comprises the following steps: S1, enabling a data stream to enter a data module; S2, judging whether the data module to be operated in the step S1 is idle or not, if not, executing a step S3, and if so, executing a step S4; S3, performing in-link queuing according to the priority of each process in the data flow, and executing the step S4; S4, processing the data stream, and executing the step S5; and S5, outputting a result. According to the method, the situation of data disorder caused by competition due to the fact that multiple processes in a program operate the same data block at the same time can be well prevented, and in addition, due tomodularization of the data block, the congestion phenomenon caused by the fact that the data belongs to one block to be processed is well processed.

The invention discloses a huge building structure wireless sensor monitoring network system for improving sampling frequency. The system is composed of monitoring measurement points, routing nodes and a collection terminal. Each measurement point and each routing node are equipped with independent ID information. Wireless communication instructions comprise related ID information and instruction serial numbers. The routing nodes and the monitoring measurement points can carry out operation by identifying corresponding information. Each measurement point can carry out repeated automatic collection independently. Collected data is directly stored in a dynamic storage module. Data passback is not carried out through wireless communication. After the collection is finished, the measurement points can be efficiently read/written by establishing corresponding index guarantee data. A storage space is reduced through smart data compression and identification technologies. The data stored in the dynamic storage module can be passed back to the collection terminal one by one in a segmenting and packaging mode, the times of wireless communication is reduced greatly, and the power consumption of the measurement points is reduced.

The invention discloses a method and a device for bringing terminal plant station measurement data into DTS simulation calculation. The method comprises the following steps: obtaining plant station information read in an SCADA library, and screening out a target terminal plant station which is excluded by PAS and needs to be brought into DTS simulation calculation; obtaining model information anda topological relation of the target terminal plant station from the SCADA library; carrying out load initial value distribution on the target terminal plant station according to the model informationand the topological relation; and taking the load initial value distributed to the target terminal plant station as a power flow initial value of DTS simulation calculation and bringing the load flowinitial value into DTS simulation calculation. According to the invention, the measurement data of an excluded terminal plant station can be brought into DTS simulation calculation, and the simulation operation of a DTS on the terminal plant station is realized.

The invention discloses a rotating cage array type CD-ROM read-write device which comprises a plurality of shell bodies, rotating cage type optical disc storage units, optical disc read-write units and optical disc grabbing units. The number of the shell bodies is in one-to-one correspondence with the number of the rotating cage type optical disc storage units, the number of the optical disc read-write units and the number of the optical disc grabbing units, and the rotating cage type optical disc storage units, the optical disc read-write units and the optical disc grabbing units are arranged in the shell bodies. The shell bodies are provided with manual optical disk box supports capable of placing the optical disk boxes from outside to inside; each rotating cage type optical disk storage unit comprises a main rotating shaft, a stepping motor, a belt and a rotating cage; each optical disc read-write unit comprises an optical disc reader-writer; each optical disk grabbing unit is arranged on the side, close to the manual optical disk box support, in the shell body and comprises a guide rail and a mechanical arm. The rotating cage array type CD-ROM read-write device is compact in structure, large-capacity storage and efficient read-write of optical disks can be achieved, the grabbing efficiency is high, the problem that storage safety and read-write efficiency of traditional storage equipment cannot be considered at the same time is solved, and the rotating cage array type CD-ROM read-write device has high innovation value.

The invention provides a multi-thread data transmission method. Two integer values including write Pos and read Pos are defined, wherein the write Pos refers to the current position of a data writing thread for writing data into an array space, and the read Pos refers to the current position of a data reading thread for reading the data from the array space. The write Pos value is automatically increased when the data are successfully written, and the read Pos value is automatically increased when the data are successfully read. An integer mask Pos Mask is defined, and the value of the integer mask Pos Mask is N-1. The position of the actual array space for currently writing and reading the data is determined by AND operation of the value of the Pos Mask and values of the read-write positions, namely, the current writing position is data PtrArray [write Pos &Pos Mask], and the reading position is data PtrArray [read Pos &Pos Mask]. Data transmission between two threads can be realized, namely, a queue container as a critical resource is accessed in an unlocked manner, and performance is greatly improved.