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77 results about "Multibus" patented technology

Multibus is a computer bus standard used in industrial systems. It was developed by Intel Corporation and was adopted as the IEEE 796 bus. The Multibus specification was important because it was a robust, well-thought out industry standard with a relatively large form factor, so complex devices could be designed on it. Because it was a well-defined and well-documented industry standard, it allowed a Multibus-compatible industry to grow around it, with many companies making card cages and enclosures for it. Many others made CPU, memory, and other peripheral boards. In 1982 there were over 100 Multibus board and systems manufacturers. This allowed complex systems to be built from commercial off-the-shelf hardware, and also allowed companies to innovate by designing a proprietary Multibus board and then integrating it with other vendors' hardware to create a system. A good example of this was Sun Microsystems with their Sun-1 and Sun-2 workstations. Sun built custom-designed CPU, memory, SCSI, and video display boards, and then added 3Com Ethernet networking boards, Xylogics SMD disk controllers, Ciprico Tapemaster 1/2 inch tape controllers, Sky Floating Point Processor, and Systech 16-port Terminal Interfaces in order to configure the system as a workstation or a file server. Other workstation vendors who used Multibus-based designs included HP/Apollo and Silicon Graphics.

Self-adaptive multibus fusion method

The invention discloses a self-adaptive multibus fusion method which mainly solves the problem that the traditional multibus fusion requires developing special gateway or OPC (OLE (Object Linking and Embedding) for Process Control) server. The method comprises the following steps of: controlling the on and off of a timer 0 according to the level fluctuation of a detection character 00000001 received by an SCIA (Smart Card Industry Association) channel to obtain count time, and realizing the automatic detection of data transmission baud rate; dividing the data domain of a TCP/IP (Transmission Control Protocol/Internet Protocol) data frame into various bus subdata domains, extracting the data bit of each bus through packet disassembly for different bus data frames, and adding the data bit to the subdata domain of the corresponding TCP/IP data frame to realize the conversion from different bus data frame formats into the TCP/IP data frame format; and extracting the data of each subdata domain through packet disassembly for the TCP/IP data frame, and adding the data to the corresponding bus data frame format through packet assembly to realize the conversion from TCP/IP data frame format into the different bus data frame formats. The invention can realize multibus fusion under the condition of not developing special gateway or OPC server, and can be used for realizing the data transmission of various field buses.
Owner:XIDIAN UNIV

Real-time data management for a power grid

The present disclosure relates to real-time data management for a power grid and presents a real-time data management system, a system, method, apparatus and tangible computer readable medium for accessing data in a power grid, a system, method, apparatus and tangible computer readable medium for controlling a transmission delay of real-time data delivered via a real-time bus, and a system, method, apparatus and tangible computer readable medium for delivering real-time data in a power grid. In the real-time data management system of the present disclosure, a unified data model covering various organizations and various data resource is designed and a management scheme for clustered data is used to provide a transparent and high speed data access. Besides, multi-bus collaboration and bus performance optimization approaches are utilized to improve efficiency and performance of the buses. The real-time data management system may also include an event integration and complex event process component to provide a credible prediction on status of the power grid. With embodiments of the present disclosure, it may efficiently manage the high volume of real-time data and events, provide data transmission with a low latency, provide flexible extension of both the number of data clusters and the number of databases to ensure high volume data storage, and achieve a high speed and transparent data access, Additionally, it also enable the rapid design and development of analytical applications, and support the near real-time enterprise decision-making business.
Owner:ACCENTURE GLOBAL SERVICES LTD

Unified module configuration strategy for multiple buses

The invention discloses a unified module configuration strategy for multiple buses. The strategy comprises a tree-shaped module configuration structure for various bus protocols, a multi-bus protocolconfiguration method for the structure, a module channel offset allocation algorithm for the structure, and a protocol library logic organization method for realizing the structure. The device tree structure is composed of nodes and links, CPU nodes are used as root nodes, port nodes are used as child nodes of the CPU nodes, bus protocol nodes are used as child nodes of the port nodes, protocol slave nodes are used as child nodes of a protocol master node, and all the nodes are connected through the links to form a configuration tree. Aiming at the tree structure, the invention provides a multi-bus unified configuration method which comprises the steps of CPU node addition and configuration, port node addition and bus master-slave node addition and configuration. Meanwhile, a module channel offset allocation algorithm is provided for the tree-shaped equipment structure, and the algorithm is based on depth-first traversal and offset accumulation. In order to realize the structure, an infrastructure definition library and a configuration library of each bus need to be realized. The structure and the implementation method can conveniently support the configuration of various bus protocols, facilitate the addition and deletion of new protocols, and reduce the research and development cost and the error rate.
Owner:中电智能科技有限公司

Multi-bus network communication architecture

PendingCN111464466ASolve the problem of low bandwidth utilizationAvoid Quantity LimitsBaseband system detailsBus networksNetwork deploymentTerminal equipment
The invention relates to a multi-bus network communication architecture. The architecture includes an Ethernet router node, a master station node and slave station nodes. The Ethernet router node is in bridge connection with a data management center and the master station node, the master station node is connected with the slave station nodes through an M-LVDS bus, the slave station nodes communicate with terminal devices, and a network structure formed by cascading the data management center, the Ethernet router node, the master station node, the slave station nodes and the terminal devices is achieved. According to the multi-bus network communication architecture, the communication bandwidth utilization efficiency of a bus communication link can be improved; the network deployment mode can be optimized by configuring the number of the nodes and the node connection relationship, and the access capability can be provided for different types of terminal devices by configuring the slavestation nodes, so that the limitation of the terminal devices in the aspects of access mode, number, bus type and the like can be avoided, flexible network scale expansion is realized, and the multi-bus network communication architecture is suitable for more application environments.
Owner:NAT UNIV OF DEFENSE TECH

High-security configurable real-time data transmission framework supporting heterogeneous bus

The invention discloses a high-security configurable real-time data transmission framework supporting a heterogeneous bus, which is a constructed unified transmission framework and comprises a transmission module, a unified transmission interface, configuration data and a packet format, wherein the unified transmission framework supports and can configure a heterogeneous bus, specifically supportsa programming interface registration bus based on application software and supports a unified transmission interface; the method has high security and configurable capability, specifically supports the configuration and filtering of data packets in different electromechanical application modes, and supports the transmission start and end positioning and data verification based on a state machine.And the system has the functions of receiving multi-bus data in real time and configuring the multi-bus data. According to the embodiment of the invention, the problems of multiple bus types and non-uniform interfaces are solved, the problems that load data transmission in an electromagnetic environment is easy to cause errors and messages cannot be distinguished due to continuous arrival of thedata are solved, and the problem of transmission real-time performance is solved.
Owner:XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA

Data management method and system based on soft PLC

PendingCN114721736AIncrease flexibilityOvercome the disadvantage of poor flexibilityProgram initiation/switchingResource allocationData acquisitionOperability
The invention discloses a data management method and system based on a soft PLC, and the method comprises the steps: enabling the soft PLC to be embedded with a plug-in management mechanism, and loading a communication module of a plurality of bus types and a user extension function module; collecting data of the first type of field bus equipment, and storing the data in a data dictionary in a classified manner; data to be processed is extracted from the data dictionary, after a data processing function is executed, an operation result is updated to the data dictionary or a self-defined global data storage area according to the attribute of the data operation result, and then the operation result is forwarded to a second-class bus data collection device or localized storage; and repeating the steps, acquiring the first type of bus data, processing and transferring a processing result to the second type of bus data collection device or storing the processing result in a local file. According to the method, expandability and operability of multi-bus data management are considered, and through a plug-in management mechanism and in combination with the programmable characteristics of a data dictionary and a soft PLC, the method better meets the full-process requirements of data acquisition, processing and distribution.
Owner:HUAZHONG UNIV OF SCI & TECH

Small universal multi-bus control device

The invention discloses a small universal multi-bus control device. The small universal multi-bus control device includes a control board and a relay board; the control board and the relay board adopta vertical stacking structure, and the board layers are connected by a connector; the relay board comprises a first solid state relay, a multi-channel solid state relay, a second solid state relay, and at least one analog switch; a first end of the first solid state relay is connected to an output end of the control board, and a second end of the first solid state relay is connected to an input end of the multi-channel solid state relay; a first output end of the multi-channel solid state relay serves as a first external device interface of the relay board, and a second output end of the multi-channel solid state relay is connected to an input end of the control board; a first end of the second solid state relay is connected to a sampling end of the control board, and a second end of thesecond solid state relay is connected to an output end of the analog switch; and an input end of the analog switch serves as a second external device interface of the relay board. The invention increases the communication type and the number of signal transmission channels under the premise of reducing the size of the device, so that the device has versatility, the device utilization rate is improved, and the cost is saved.
Owner:HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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