46results about How to "Improve data exchange efficiency" patented technology

The invention provides a data transmission method and a terminal device. The method comprises the following steps: a data receiving terminal receiving a near field communication label sent by a data sending terminal; the data receiving terminal parsing the near field communication label and obtaining transmission information; the data receiving terminal establishing connection with the data sending terminal according to the transmission information; and the data receiving terminal receiving data sent by the data sending terminal, wherein the transmission information is written into the near field communication label in a near field communication data exchange format. According to the invention, authentication is realized by use of a near field communication mode among devices so that the problem of identity fraud by use of a conventional authentication mode in a network space is effectively prevented, and data transmission security is guaranteed. Besides, conventional tedious hitting, selecting and pressing operation on the devices is replaced by short-distance approaching among the devices, so that a user can simply and rapidly realizing automatic connection with the devices to be connected for data transmission, and the requirement for minimized energy consumption can be reached.

The invention discloses a service-oriented intelligent residential area real-time database system and a working method thereof. The system comprises a data interface layer, a data persistence layer, a call service layer, a data model layer and a service layer, wherein the data interface layer is used for performing classified collection on sensor information of a safety protection system or a building automation system of a residual area, packaging data according to a unified communication protocol and transmitting the packaged data into a memory of the data persistence layer in a binary data stream form; the data persistence layer is used for unified storage of the data collected by the data interface layer; the call service layer performs data analysis and storage; the data model layer is used for providing measurement points and an internet-of-things device and performing data associative analysis and prediction; and the service layer is used for providing core services including data analysis, data cleaning, data compression, data decompression, data conversion, real-time data access, historical data access, state monitoring, business management, log recording and alarm services. A real-time database has the characteristics of loose coupling, service reusability and the like.

A novel general bus transforming bridge IP core comprises a plurality of bus modules of different protocols and a switching module, wherein the switching module comprises a plurality of memorizers, a data switching unit, a data analysis unit, a data package unit, a state register unit and an interruption control unit. Under the state that data switching is needed, the bus modules connected with a plurality of data sending parties respectively send first interruption requests to the interruption control unit, the interruption control unit modifies the value of the state register unit according to the first interruption requests, the data analysis unit reads data of the corresponding bus modules and then analyzes the data, the data switching unit transmits the analyzed data to the corresponding memorizers, the interruption control unit sends second interruption requests to corresponding data receiving parties, the data package unit reads data from the memorizers and packages the data into a needed data format, and the data receiving parties read the packaged data from the switching module.

The present invention discloses a fault recording device on the basis of a double-CPY parallel wave recording storage. The device provided by the invention comprises a simulation signal conditioning module, a switching value isolation module, an AD conversion module, a time setting module, a FPGA module, a power supply and two CPY modules. The two CPU modules communicate with the FPGA module through each kilomega network bus; the FPGA module is provided with a RJ45 interface, and the RJ45 interface of the FPGA module is able to transmit real-time collection data in an IEC61850-9-2 message format to a background through a kilomega network or an industrial control computer; and the time setting module is configured to provide time reference signals for the AD conversion module, the FPGA module and two CPU modules at the same time, and the power supply module supplies power for the whole fault recording device. The technical problems are solved that the fault recording device has low operation reliability, unreasonable data storage and the like in the prior art, and the device operation, the storage reliability and the data transmission rate are improved; and moreover, the fault recording device on the basis of a double-CPY parallel wave recording storage has advantages of high performances, good compatibility, high reliability, good stability, wide application and the like.

The invention relates to a data exchange synchronization method and system. The data exchange synchronization method comprises the steps of obtaining a target data exchange synchronization task; obtaining a data reading instruction and a data writing instruction according to the task configuration information of the exchange synchronization task; sending a data reading instruction to a data reading component configured in the task processing node server, indicating the data reading component to acquire target data from the source end database, and transmitting the target data to the message middleware; configuring the message-oriented middleware in the task processing node server for receiving the data sent by the data reading component; and sending a data writing instruction to a data writing component configured in the task processing node server, indicating the data writing component to read the target data from the message middleware, and sending the target data to a target end database. The data exchange synchronization method separates the data read-write component through the message middleware, and can conduct data reading and data writing at the same time, thus improving the efficiency of data exchange between the source end database and the target end database.

The invention relates to a method and system for processing dirty data. The method comprises the following steps: generating a retrieve request by a client according to retrieve information inputted by a user, and transmitting the retrieve request to a processing center and a database; transmitting all inquired relevant data records to the processing center by the database; verifying and comparing all data records with data information in a state library by the processing center, gradually judging whether each data record is dirty data or not, marking all data records which are the dirty data if the dirty data exists, eliminating the data records which are marked as the dirty data, and returning all relevant records to the client if no dirty data exists; transmitting the retrieve request to the database by the processing center, re-acquiring all relevant data records from the database, and eliminating the dirty data until all requested data records are returned. By adopting the method and system, time consumption for processing complicated SQL sentences can be avoided, the data exchanging efficiency of the system also can be improved, and the user experience can be improved.

The invention discloses a method for generating real-time traffic information, and belongs to the field of intelligent traffic. The method includes that Socket connection between a GPS (global positioning system) receiving system and a FCD (floating car data) processing system of a floating car is created; a GPS data buffer is set; received GPS data are inserted into the GPS data buffer by the GPS receiving system in real time; and the GPS data are extracted from the GPS data buffer to be subjected to FCD processing by the FCD processing system so as to generate the real-time traffic information. The method has the advantages that a novel processing architecture is proposed, the GPS data buffer is created according to a manufacturer/consumer model, GPS data receiving buffer and the FCD processing can be operated synchronously, computation resources are effectively utilized, and issuing timeliness of the real-time traffic information is improved; and the latest map matching and path speculation results are buffered in the FCD processing system, and accordingly computation and issuing cycles of the real-time traffic information can be dynamically adjusted.

The present invention relates to a user preference-based data adaptation service system and method. More particularly, the present invention relates to a user preference-based data adaptation service system and method capable of providing a data adaptation service that appropriately converts a file in consideration of a difference between the platforms of different kinds of devices in order to share the file, and reflecting an exact user preference in consideration of the surrounding environments, such as, the performance of the device and a network.

The invention belongs to the technical field of the Internet of Things, and particularly relates to a method and system for constructing a decentralized sensor network of the Internet of Things. The method comprises the following steps: enabling a plurality of sensor network clusters in the Internet of Things to be mutually connected to form a decentralized network cluster; the sensor network cluster has two types of a used network cluster and a vacant network cluster and comprises a cluster head node, an intra-cluster node and a new node; the in-cluster nodes in the sensor network cluster are mutually interconnected to form an in-cluster intranet, and cluster head nodes are mutually interconnected to form a cluster intranet and a cluster intranet; and the intra-cluster intranet and the intra-cluster intranet are in signal connection. According to the method, the Internet of Things is subjected to multi-layer layering, the layered Internet of Things can be subjected to function maintenance better, and when new functions need to be added, reduced or changed, automatic adjustment can be carried out; and meanwhile, by scheduling the data in the layered network, the efficiency of the Internet of Things and operation is improved.

Techniques for increasing the efficiency in se of a data bus are disclosed. A bus system includes a bus for transferring data, and a device, being coupled to the bus for data transfer, including a functional module providing data required to be transferred over the bus and a first-in-first-out device (FIFO) coupled between the functional module and the bus. The FIFO is provided to store pending data from the functional module before the bus is granted to the functional portion in responding to a bus request (BUS_REQ) for transferring the data over the bus, wherein topside data in the FIFO always drives the bus so that the topside data is immediately transferred over the bus once the bus is granted to the device or the functional module.

The invention relates to an unmanned aerial vehicle relay transmission control method based on non-orthogonal multiple access, which is characterized in that an unmanned aerial vehicle serves as a relay station and establishes communication links with a base station and user sides where users are located; a plurality of user sides are combined to form a user side group; the user sides are divided into high-grade user sides and low-grade user sides according to corresponding channel gains; the channel gains of the high-grade user sides are higher than the channel gains of the low-grade user sides; at least one high-grade user side is arranged in the user side group; the low-grade user sides are allocated to the user side group where the high-grade user sides are located; the low-grade users are allocated according to channel gains and channel conditions of the low-grade users, and the low-grade users perform user side group allocation before the low-grade users. Compared with the prior art, the method has the advantages that the spectrum efficiency of the unmanned aerial vehicle relay network based on NOMA is improved, so that the throughput performance of the unmanned aerial vehicle relay network is effectively improved.

The invention discloses an access control module, a virtual machine monitor and an access control method, the access control module comprises: a first IO interface used as a communication interface between IO main equipment and a computer system, wherein the IO main equipment forms an IO virtual machine by establishing an association relationship with a preset first virtual machine in the computersystem. The module also comprises a first memory management unit suitable for converting a virtual address of an access space contained in a data access request into a corresponding physical addresswhen receiving the data access request from the first IO interface, and sending the data access request containing the physical address to the physical address routing unit; and a physical address routing unit suitable for routing the data access request to the corresponding access space according to the physical address contained in the received data access request. By adopting the scheme, the load of the processor in the computer system can be reduced, and the data exchange efficiency of the IO main equipment and the computer system is improved.