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59 results about "Service Data Objects" patented technology

Service Data Objects is a technology that allows heterogeneous data to be accessed in a uniform way. The SDO specification was originally developed in 2004 as a joint collaboration between Oracle (BEA) and IBM and approved by the Java Community Process in JSR 235. Version 2.0 of the specification was introduced in November 2005 as a key part of the Service Component Architecture.

CAN (control area network) open slave station system based on DSP (digital signal processor) 28335

The invention provides a CAN (control area network) open slave station system based on a DSP (digital signal processor) 28335. The CAN open slave station system is based on a DSP 28335 hardware platform, can be applicable to an embedded operating system or a state machine system constructed on a foreground-background system, comprises a CAN communication management module, an object dictionary management module, a network management module, a timer management module, a communication object management module and the like, and completes basic tasks of the CAN open such as PDO(process data objects), SDO(service data objects), NMT(network management objects), synchronous message processing and the like. By the aid of the CAN open slave station system based on the DSP28335, a 301 protocol function in a CIA protocol is completely achieved. The CAN open with targeted optimization can be transported from node functions to a CPU of the same series after simple modification on the DSP28335 platform, so that transportability is achieved. Codes can be reduced, system resource occupation is low and timeliness is high. Due to high applicability, various node functions can be achieved only with simple configuration, and the CAN open slave station system is low in development cost and convenient in maintenance and function expansion.
Owner:天津瑞源电气有限公司

Method for transmitting data via canopen bus

The invention relates to a method for transmitting data between a first automation appliance, such as a user PC or a central controller, and at least one second automation appliance, such as a field device, via a CANopen bus using a service data object as an SDO service, wherein an SDO client implemented in the first automation appliance is used to send a download or upload request to an SDO server implemented in the at least one second automation appliance, wherein the data are encapsulated in a CANopen frame by an application implemented in the first automation appliance or the at least one second automation appliance wherein the CANopen frame with the encapsulated data is transmitted or sent by means of an SDO service into or out of a data tunnel object defined in an object directory of the SDO server, and wherein the encapsulated data are decapsulated by the application implemented in the first or the at least one second automation appliance. In order to simplify the configuration and / or parameterization of automation appliances with a MODBUS server using a CANopen bus, provision is made for the method to be used to configure and / or parameterize the second automation appliance having at least one MODBUS server using the CANopen bus, for the data to be produced as configuration and / or parameterization data in the form of a MODBUS frame and to be encapsulated in the CANopen frame, and for the CANopen frame to be loaded into the data tunnel object of the SDO server of the at least one second automation appliance by means of an SDO download and decapsulated.
Owner:SCHNEIDER ELECTRIC AUTOMATION

Method and device for debugging variable-pitch system of wind generating set

The invention provides a method and a device for debugging a variable-pitch system of a wind generating set. The device comprises a host computer, a main station device and a variable-pitch device, wherein the host computer is connected with the main station device through the Ethernet; the main station device is connected with the variable-pitch device through a CANopen bus; a user reads information of the variable-pitch system through the human-machine interface of the host computer and performs corresponding operation on the variable-pitch system; the program of the main station device is used for processing the state information of the variable-pitch system and the control command of the host computer; and the variable-pitch system is used for transmitting all state information to the main station device and receiving the control command transmitted by the main station device to perform actions such as pitch variation. The method and the device have the beneficial effects that due to the adoption of the technical scheme, the debugging device is small in size, and is easy and convenience to operate; the host computer is connected with the main station device through the Ethernet, so that safety and reliability are realized; and data are exchanged with variable-pitch device accurately and timely through a PDO (PHP Data Object) and an SDO (Service Data Object) of CANopen bus communication.
Owner:天津瑞源电力电子技术有限公司

GSP communication message analysis method

PendingCN111859043AAnalysis is comprehensive and sufficientMake up for the lack of parsing of the protocolCircuit arrangementsOther databases queryingData matchingNetwork packet
The embodiment of the invention discloses a GSP communication message analysis method, which is suitable for a DL / T860 standard. The method comprises the following steps: importing and analyzing a transformer substation model file, and acquiring a GSP communication message; preliminarily analyzing the message to generate a message association relationship; recombining the segmented message; analyzing GSP service area data based on PER decoding; matching the model information with the associated message, and analyzing the indefinite type data. According to the invention, the recombination of the GSP framing message is realized; a PER decoder suitable for the DL / T860 standard is designed to analyze the content of the fixed type data in the GSP communication message; the model information andassociated message information are combined, the data of uncertain types in the GSP communication message are analyzed, comprehensive and sufficient analysis of the GSP communication message is achieved, and the defect that current network packet analysis software does not contain protocol analysis is overcome; in combination with the DL / T860 standard and the transformer substation model file information, the GSP service data is mapped to a service data object of specific equipment.
Owner:INTEGRATED ELECTRONICS SYST LAB

SPI (Serial Peripheral Interface)-based register fast read-write method

The invention discloses an SPI (Serial Peripheral Interface)-based register fast read-write method. The method comprises a register read-write step and a register batch read step, wherein the register read-write step comprises the following sub-steps: changing an equipment gating signal CS to be effective, namely at low level, and keeping four beats effective continuously; at a first beat, transmitting a read-write command and a read-write address CMD [7:0] through an SDI (Serial Digital Interface) data line, wherein CMD [7] is equal to 0 and represents the read-write command, and CMD [6:0] is a read-write address; at a second beat, transmitting the data DATA0 through the SDI data line; at a third beat, reading old data DATA1 of the read-write CMD [6:0] through an SDO (Service Data Object) data line; at a fourth beat, reading new data DATA2 of the read-write address CMD [6:0] through an SDO data line, wherein the DATA2 is required to be consistent with the DATA0; changing the equipment gating signal CS to be high level and finishing the read-write of the register. The read-write method provided by the invention does not need multiple addressing, has a simple time sequence, is fast, simple and convenient to operate and plays an important role in improving the overall operation level and the institutional norms of SPI interface communication in China.
Owner:MICROARRAY MICROELECTRONICS CORP LTD

Model view controller modeling language

A model view controller modeling language as an XML schema for creating and describing documents to be rendered on any server or client. The new modeling language contains distinct model, view, and controller sections as well as sections for header information, and session information. MVCML contains one or more forms where each form specifies a user interface hierarchy. The user interface part types are extensible, and all part types, whether they are contained in a core set or provided as supplied extensions to the core set, are specified and processed identically. The user interface layout mechanism can be specified, and new layout mechanisms can be added and form designers have the ability to explicitly specify which part types and layout mechanisms to use. An action may be associated with more than one user interface event. An extensible set of action types, such as ‘submit’, ‘property to property linking’, or ‘process control logic’ can be specified. Mechanisms exist to link user interface part properties to control logic and model data. Local control logic can be specified in a programming language of choice within the document or can reference external control logic. Part content data can be explicitly defined within the document or can be obtained from an external data source, such as a service data object.
Owner:IBM CORP
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