190 results about "Data Distribution Service" patented technology

An integrated financial data reporting system provides for real time data entry, assessment, and report generation. The system includes message formatting, database management, and select applications for preparing sophisticated financial presentations in essentially real time. An alert notification server alerts users when a financial threshold specifying a credit limit and / or a trading limit has been crossed. A data distribution server electronically distributes data to users on a recurring and / or periodic basis, and a search engine server provides free-form searches against information stored in a consolidated database. Through the inventive system, financial institutions rationalize risk, performance, and compliance positions in a cost-effective manner.

A radio line is easily influenced in its nature by attenuation or reflection of an electromagnetic wave or the like and the surrounding environment. Due to this fact, a variation of the data transfer speed frequently occurs at the time of image streaming so as to become a hindrance to reproduction of an image at the receiving terminal. A distribution server is provided with a multiplexer for multiplexing information indicating the transmission start time for the image data and a switching unit for switching an image bit rate in response to a request from the receiving terminal. The receiving terminal uses information indicating a transmission start time for the image data, monitors the receiving bit rate and sends out a request for transmission of the most-suitable image bit rate in response to a comparison thereof.

A locomotive control system includes a controller configured to control communication between or among plural locomotive devices that control movement of a locomotive via a network that communicatively couples the vehicle devices. The controller also is configured to control the communication using a data distribution service (DDS) and with the network operating as a time sensitive network (TSN). The controller is configured to direct a first set of the locomotive devices to communicate using time sensitive communications, a different, second set of the locomotive devices to communicate using best effort communications, and a different, third set of the locomotive devices to communicate using rate constrained communications.

A system and method for monitoring and analyzing statistics regarding informational and transactional data is provided. Data distribution servers provide e-mail and other messages of topical interest to a subset of the subscribers. The content may be generated by an OLAP based channel database system, and the output may also be communicated to individuals via spreadsheet programs data, pager, telephone, mobile phone, fax, personal digital assistants, HTML e-mail and other formats, including a workbook file attachment. Statistics regarding the provided reports are generated and compiled. Analysis of the statistics may enable evaluations of system performance, application usage, and optimal configurations for the system.

The invention discloses a data distribution service (DDS) communication system. The system uses a publishing / subscribing communication mode and comprises a plurality of publishers, a plurality of subscribers, a plurality of middle pieces, a register data type module, a generation topic module, a publishing data module, a seeking topic module, a subscribing topic module and a receiving data module; one publisher firstly calls the register data type module, returns the module after succeeding in calling the module, and then calls the generation topic module to generate a topic on the middle pieces; one subscriber discovers the topic on a network by seeking the topic module, and then calls the subscribing topic module to subscribe the topic; and the publisher calls the publishing data module to send data to the middle pieces when receiving words of subscribing the topic, and the subscriber receives the data on the middle pieces through the receiving data module. The DDS communication system is high in real time performance and very applicable to various radar weapon systems which are high in requirement of real time performances and large in handling capacity.

The invention relates to a LoRa core network system and a realization method. According to functions of designed gateway, network management server, application management server, data distribution server and database server, a task of operating and managing a LoRa network can be finished. The designed application management server based on Nginx, TCP connection is taken over by Nginx, and parameters of request service are borne by a body in an HTTP message. A service request module is docked with an Nginx module. The realization complexity resulting from managing the TCP connection by an Epoll model is avoided, the system expansibility is improved, and the maintainability is relatively high. A request preprocessing mode accesses the rapid processing and blacklist filtering LoRa network based on a UDP, requests are rapidly transmitted to the data distribution server through the UDP, through blacklist filtering, illegal requests are prevented from entering the application management server through the data distribution server, and the system security and reliability are ensured.

At least one musical instrument, a server computer, a mobile telephone and a communication network form a music performance system; the owner has registered the musical instrument with a client database in the server computer, and a user transmits a request for music data distribution service to the server computer through the mobile telephone; upon reception of the request, the server computer searches the client database to see whether or not the owner has contracted the provider for the music data distribution service; when the server computer finds the owner in the client database, the server computer transmits a set of music data codes directly to the musical instrument so that the mobile telephone is shareable between the musical instrument and another musical instrument.

The present invention provides a multicast communication system having a multicast server and a plurality of clients belonging to a multicast group. The multicast server transmits data encrypted by using a first encryption key to the clients by multicasting, and transmits the result of encrypting the first encryption key by using a second encryption key by unicasting to a client subscribed to a data distribution service, among the plurality of clients. The client subscribed to the data distribution service receives the encrypted data and the result. The client decrypts the result to obtain the first encryption key and decrypts the encrypted data using the first encryption key.

The file creating processing unit creates at least one material data and at least one control information file to display the material data in a presentation package storage folder corresponding to a presentation pack. When a package creating processing unit receives a delivery designation, the package creating processing unit creates at least one package from all files in the presentation package storage folder to satisfy a predetermined condition and delivers presentation packs in units of packages to an information display device through a data distribution server.

A Data Distribution Service (DDS) transfers information between nodes in an ad hoc mobile mesh network. The DDS includes many different novel features including techniques for coalescing retransmit requests to minimize traffic, providing a reasonable level of reliability for event oriented communications, multicasting retransmissions for use by many nodes, and providing other optimizations for multicast traffic. The DDS uses UDP datagrams for communications. Communications operate in a truly peer-to-peer fashion without requiring central authority or storage, and can be purely ad hoc and not depend on any central server. The protocol is NACK-based, which is more suited to a mesh network than a traditional approach like TCP, which uses positive acknowledgements of all data. The DDS is amenable to very long recovery intervals, matching well with nodes on wireless networks that lose coverage for significant periods of time and also works well with constantly changing network topologies. Reliability can also be handled over a span of time that might correspond to losing wireless coverage.

A locomotive control system includes a controller configured to control communication between or among plural locomotive devices that control movement of a locomotive via a network that communicatively couples the vehicle devices. The controller also is configured to control the communication using a data distribution service (DDS) and with the network operating as a time sensitive network (TSN). The controller is configured to direct a first set of the locomotive devices to communicate using time sensitive communications, a different, second set of the locomotive devices to communicate using best effort communications, and a different, third set of the locomotive devices to communicate using rate constrained communications.

A map-data distribution method distributes map data from a map-data distribution server to a client and causes the client to draw a map image. The map-data distribution method includes steps of causing the map-data distribution server to store a plurality of map components obtained by dividing the map data, causing the server to send the map data to the client in an order according to the map component, and causing the client to store the received data in a temporary memory while causing the client to start to draw the map image using one of the received data and the data stored in the temporary memory.

An information acquiring device and an information providing device used for a pull-type data distribution service is connected to an e-mail server and an information server on a network to receive an e-mail from the e-mail server through the network to acquire data, analyzes the data of the acquired received mail, acquires a definition file and contents in the information server to causes the contents to be displayed in a format defined by the definition file and, when it is recognized that the location information is present in the data of the received mail acquired through analysis, stores the recognized location information on the network for use in acquiring the definition file and the contents.

A system includes a scheduling device of a data distribution service (DDS) that determines bandwidth for communication of time sensitive communications between devices using the DDS in a time sensitive network (TSN). The scheduling device determines available bandwidth for communication of non-time sensitive communications of the control system using the DDS in the TSN, and controls communication of the non-time sensitive communications in the TSN without preventing communication of the time sensitive communications in the TSN based on the available bandwidth. The system also can include a traffic shaper of the TSN that receives a communication change from the control system at the TSN. The scheduling device changes one or more of the bandwidth for the communication of the time sensitive communications or the available bandwidth for the communication of the non-time sensitive communications in the TSN without restarting the TSN.

The invention relates to an automatic establishing method of a DDS (data distribution service) distributive system based on XML. The invention relates to an automatic establishing method of a DDS distributive system based on XML, which aims at solving the problems that the DDS distributive system establishing process is complicated and the establishing efficiency is relatively low. The method comprises the steps: describing anticipator information, order release information and target model structure information of the system by utilizing an XML system scheme file, generating an operation plug-in of DDS by virtue of automatic code generation and coding, and establishing the DDS distributive system. By adopting the automatic establishing method, the establishing efficiency of the DDS distributive system is improved, the establishing complexity of the system is reduced, the error rate in the establishing process of the system is reduced, and the application of DDS is simpler and more efficient. The automatic establishing method is applied to the field of information transmission.

A data playing device according to the present invention generates code frames of original data by performing restoration processing based on sample listening frames included in sample listening data and the additional frames corresponding to the sampling listening frames respectively, and plays or records the obtained code frames with high-quality sound. The present invention can be applied to a coding device, a playing device, a recording device or the like, whereby a user who has received distribution data listens to sample listening data included in the distribution data. If the user is satisfied with the contents, the user updates the license information by paying the price thereof using a predetermined method, and thus can flexibly deal with various contents data distribution services.

A method is disclosed for logging triggers in a video data stream the method including but not limited to monitoring a video data stream at an multimedia processor end user device; receiving from a data distribution server, the video data stream at the multimedia processor end user device; detecting a trigger in the video data stream at the multimedia processor end user device; logging a time for the trigger detected in the video data stream in a trigger log at the multimedia processor end user device; and sending the trigger log an advertising verification system in the data distribution system for correlating the time the trigger occurred with an Advertising Schedule.

Disclosed herein are an apparatus and method for supporting Quality of Service (QoS) in middleware for Data Distribution Service (DDS). The apparatus includes a QoS policy analysis module, a QoS policy management module, and a QoS policy process module. The QoS policy analysis module extracts a set of QoS policies set up by Data Centric Publish Subscribe (DCPS) and associated with publication / subscription, and analyzes the QoS policies. The QoS policy management module determines the consistency of QoS policies of the DDS, and negotiates QoS policies for DDS communication. The QoS policy process module handles the QoS policies of the DDS.

The invention provides a dynamic ICD (Interface Control Document) configured bus simulator system, and aims at providing a bus simulator system which has better extensibility and reusability and high universality. The dynamic ICD configured bus simulator system is realized by the following technical scheme: a display control system and a bus communication system are respectively of independent software for carrying out data communication through DDS (Data Distribution Service) communication middleware; the display control system is used for dynamically generating interface controls through loading interface configuration files, one group of ICD bound controls are automatically traversed, numerical values in the controls are read; automatic packing and unpacking of ICD data items are respectively realized according to a format of a big endian or a little endian; modeling is carried out on a relative layout relation of the interface controls and the controls, and controls capable of being automatically distributed are generated according to a tree-like hierarchical structure of the interface configuration files; retransmission of data between two types of bus drives is realized through the bus communication system; transmission and receiving of bus data and analysis and generation of the bus data are decoupled through the DDS communication middleware and a bottom-layer driver.

A control system (e.g., that controls operations of a powered system) includes one or more processors configured to determine quality of service (QoS) parameters of devices communicating data with each other in an Ethernet network configured as a time sensitive network (TSN). The one or more processors also are configured to determine available communication pathways in the TSN through which the devices are able to communicate the data, and to select one or more of the available communication pathways and to designate communication times at which the data is communicated between the devices in order to satisfy the QoS parameters of the devices.

An apparatus for monitoring a data distribution service (DDS), and a method thereof are disclosed. A DDS monitoring apparatus monitoring a data distribution service (DDS) includes: a monitoring participant configured to receive a monitoring topic from a DDS node, wherein the monitoring topic is status information of the DDS node; a monitoring data collector configured to collect the monitoring topic, and to determine whether or not the monitoring topic is urgent; and a monitoring data analyzer configured to analyze the monitoring topic according to whether or not the monitoring topic is urgent to determine whether to create DDS status information corresponding to the status of the DDS node. Accordingly, it is possible to monitor a DDS in real time.

The invention discloses a video acquiring and sharing system based on a mobile terminal and a process method thereof. The video acquiring and sharing system comprises the mobile terminal, a center node and a plurality of city nodes, the center node and the city nodes are connected through the content delivery network, the center node comprises a data delivery server cluster, a data cache server cluster, a data synchronous server cluster and a user authentication server cluster, each city node comprises a stream media server cluster, and the data cache server cluster, the data synchronous server cluster and the user authentication server cluster are connected mutually through the network. The video acquiring and sharing system based on the mobile terminal and the process method thereof have the advantages that due to the fact that the center node is provided with the data synchronous server cluster and the data cache server cluster, tree-like delivery servers and multi-cast of 'application layer' of stream media are realized, stress on a center node server and the backbone network is reduced and service quality for users accessing contents of the stream media is improved.

The invention discloses a real-time data processing and distributing system based on SOA and DDS. The system is composed of a protocol adaptation service component, a quality control service component, a data distribution service component and a data monitoring service component. The protocol adaptation service component provides a network data interface service for a collection terminal, and can perform flexible configuration of a protocol and data conversion; the quality control service component provides control on quality of original data, and performs data caching, data classification and data filtering on collected data; the data distribution service module provides a unified interface for subscribing and distributing subjects, distributes data via a subject distribution interface, and acquires data via a subject subscribing interface; the data monitoring service component provides an interface for monitoring and statistically analyzing data, has the functions of data statistics, concurrence statistics, link monitoring analysis and abnormal monitoring, and can monitor and statistically analyze a data link of the whole system.

A control system includes a controller configured to control communication between or among plural vehicle devices that control operation of a vehicle via a network that communicatively couples the vehicle devices. The controller also is configured to control the communication using a data distribution service (DDS) and with the network operating as a time sensitive network (TSN). The controller is configured to direct a first set of the vehicle devices to communicate using time sensitive communications, a different, second set of the vehicle devices to communicate using best effort communications, and a different, third set of the vehicle devices to communicate using rate constrained communications.

Radio communication system includes mobile terminal (UE), plurality of base stations connected by radio to the UE, gateway apparatus (GW) connected to the plurality of base stations, and data distribution server (SV) which is connected to the GW over the Internet and which distributes data to the UE. UE transmits a first data request (DR) and a second DR to the data distribution server through the base station and the GW. When the GW receives the first DR from the base station, GW transmits the received first DR to the data distribution server independent of a radio transmission load state from the base station to the UE. When the GW receives second DR from the base station, GW transmits the received second data request to the data distribution server with delay in accordance with radio transmission load state from the base station.

Provided herein a method and apparatus for generating a data distribution service application, the method including syntax-analyzing an IDL (interface description language) file; determining a topic model to be used in the data distribution service application based on a result of the syntax-analyzing of an IDL (interface description language) file; receiving QoS information and determining a QoS model by a QoS (quality of service) modeler; determining a DDS application model based on the topic model and QoS model by a DDS (data distribution service) application modeler; and generating a source code based on the topic model, QoS model and DDS application model.

The present invention discloses a general aviation electronic task system product testing and verification environment. The environment comprises a general simulation excitation area, a dedicated test area and a distributed communication network. The general simulation excitation area contains simulation components, and is used for simulating test excitation data of the required test verification environment and accessing the data to the distributed communication network; the dedicated test area contains an interface conversion unit, and is used for accessing the avionics task product to the distributed communication network; and the distributed communication network is used for adopting the middleware technology based on the data distribution service to carry out coupling between the accessed simulated excitation data and the measured avionics product through the data subject, monitoring the process data and analyzing the results. According to the technical scheme of the present invention, an open structure is used, only configuration of the interface conversion unit and a small amount of simulation components is needed can provide the verification environment for the professional and technical products of different professions, repetitive construction is reduced to the greatest extent, the economy is considerable, and the development cycle of the test verification is greatly shortened.