32 results about "Dynamic Data Exchange" patented technology

An apparatus and a method for processing sensor data for a vehicle using an unified data format eXtensible Markup Language in process of data communication between various vehicle sensors and a vehicle application system, which facilitates transmit and receive data processing in terms of a vehicle network of the sensors and the application system are provided. The apparatus for processing the sensor data for the vehicle using the XML includes a plurality of vehicle sensors installed inside the vehicle for detecting a change of physical quantity and providing a detection signal; a sensor transducer for converting the detection signal of the vehicle sensors to an electrical analog signal; a signal conditioning unit for amplifying the electrical analog signal to a measurable signal; an Analog / Digital Converter (ADC) for converting the amplified analog signal to sensor data of a digital signal; a frame generator for generating and providing the sensor data converted to the digital signal per frame; and a sensor data converter comprising a Dynamic data Exchange Channel (DEC) for batch-processing the sensor data input from the frame generator per frame, in an XML format. The DEC of the sensor data converter defines a structure of the sensor data using a schema of the XML and converts the sensor data format to the XML format at the same time.

Methods, systems and computer program products for performing multi-location execution of tests between or among multi-sided test components in a wireless environment are described. Multiple flows are initiated substantially simultaneously and concurrently executed. A graphical representation of a multi-flow test is created that permits synchronization of the flows among agents at multiple remote locations. The graphical representation is converted into a textual representation in an open communication standard format, and information regarding each flow involved in the test is ascertained. The flows are substantially simultaneously initiated and concurrently executed with synchronization and dynamic data exchange components.

The invention discloses an interactive ship cabin virtual training system based on 3D location roaming. The system comprises a host computer, a dynamic data exchange protocol, a TCP / IP protocol conversion module, an MINIS simulation platform on which a main power device teaching simulation model is embarked, and a panorama display module having a ship cabin panorama three-dimensional graph and an FLEX control member, wherein a communication end of the host computer and the dynamic data exchange protocol realize communication with a dynamic data exchange protocol end interface of the TCP / IP protocol conversion module through the dynamic data exchange protocol, a communication end of the panorama display module and the dynamic data exchange protocol realize communication with a TCP / IP protocol end interface of the TCP / IP protocol communication module through a TCP / IP protocol, and a communication end of the MINIS simulation platform is connected with a simulation data communication end of the host computer. The interactive ship cabin virtual training system improves ship cabin equipment teaching quality.

A method for realizing dynamic encryption of a communication channel between a server and a client, the method comprising: establishing a key storehouse at the server and the client respectively; The communication connection; the server decrypts and verifies the authentication information sent by the client when establishing communication; the server verifies and compares the client’s key store version number to determine whether to update the client’s key store; the server randomly assigns the second encryption The scheme encrypts the authentication information for the client to log in to the server; and the server randomly assigns a third encryption scheme to encrypt the communication data. Each data interaction of the communication channel dynamic encryption method of the present invention is encrypted. Before the server distributes the third encryption scheme, it only needs to transmit the encryption scheme instead of the specific key on the channel; communication data.

An embodiment of the present invention relates to an apparatus for managing an application program (AP) and a method therefor, and includes a processing module which, if the AP execution process thread corresponding to an AP to be terminated in a program block of an information processing device is terminated, reads the module information of each thread and the stack information of each module so as to select the module and stack having charge of processing a dynamic data exchange (DDE) message among each thread module and each module stack, and releases the termination of the thread including the selected module and stack. Thus, even in the state of terminating each AP execution process thread of the AP to be terminated (for example, user's unused AP), various problems due to the delay of processing the DDE message may be readily avoided.

The invention discloses a variable-step XML (Extensive Makeup Language) encoding method, which belongs to the field of database storage. The method comprises the following steps of: (1) setting the encoding step value of an XML document as PACE; (2) for a newly inserted XML node r: when r is inserted as a first subnode of a nonleaf node j, subtracting PACE from the final node code of the original first subnodes in j as a code of r; when r is inserted as the final subnode of j, adding the final node of the original final subnode in j with PACE as the code of r; when r is inserted between two adjacent nodes, if the first nodes of two adjacent node codes are equal and integers in the final PACE are not used up, enabling the final node of r code to be an integer in the PACE, and otherwise encoding r by adopting a DDE (Dynamic Data Exchange) method; and if r is inserted as a subnode of a nonleaf node k, increasing a component 1 behind a k code as a code of r. The method greatly improves encoding efficiency.

The invention provides a query method for XML (Extensive Makeup Language) data. The query method comprises the following steps: (1) adopting a Native XML manner to store the XML data, wherein a storage structure comprises an inner node layer, a leaf node layer and an inverted layer, wherein the inner node layer is used for storing nodes of an XML tree, an XML element is encoded by adopting a DDE (Dynamic Data Exchange) encoding manner, the leaf node layer is used for storing file data of the nodes of the XML tree; the inverted layer is used for storing an inverted index of the leaf node layer; (2) taking out an element sequence corresponding to the nodes of an XPath from the inverted layer according to an input XPath query statement and carrying out merge sort by adopting a loser tree; and (3) carrying out pushing and popping operation on XML elements subjected to the merge sort according to the sequence and obtaining a query result from a buffering region. According to the query method for the XML data, the XPath with a keyword OR and a wildcard character * can be processed and the efficiency is very high.

The invention discloses a multifunctional frequency conversion central air-conditioning experimental platform, which comprises a refrigerating system, a control system and a simulated room, wherein the refrigerating system comprises a refrigerating unit, a chilled water system and a cooling water system; the control system comprises an upper computer, a lower computer and a frequency converter; amonitoring module in the upper computer is used for acquiring operating temperatures, pressure and flow signals of the experimental platform through the lower computer and transmitting a control command to monitor operation of the refrigerating system through the lower computer or the frequency converter; a matrix laboratory (MATLAB) module in the upper computer can execute an optimization control algorithm, and the MATLAB module and the monitoring module perform data exchange through a dynamic data exchange (DDE) mechanism or an object linking and embedding standard for process control (OPC); and the refrigerating unit comprises a frequency conversion compressor, a condenser, and an air-cooled evaporator and a water-cooled evaporator which are connected in parallel. By the experimental platform, refrigerating effects of the air-cooled evaporator, the water-cooled evaporator and a varied refrigerant volume (VRV) multi-air-conditioning system can be researched simultaneously, and a verification platform can be provided for a large frequency conversion central air conditioner to execute an energy-saving optimal advanced control strategy.

The present invention discloses a real-time data communication system applied between a process monitoring control system and an emulation support system. The real-time data communication system comprises an OPC (OLE for Process Control) communication module in communication with the process monitoring control system, a DDE ((Dynamic Data Exchange) communication module in communication with the emulation support system, and a data conversion module used for performing mutual conversion on data in the OPC communication module and the DDE communication module. The present invention further discloses a real-time data communication method applied between the process monitoring control system and the emulation support system. The method comprises the steps of communication data reception, data conversion, communication data transmission and the like. The real-time data communication system and method has beneficial effects of implementing fusion of two different data exchange mechanisms of OPC and DDE and implementing real-time communication of large data volume.

The invention discloses an on-line monitoring method of a numerical control system, comprising: S1, searching for variable data items, and verifying whether the ID of the variable data item exists in the numerical control system, and verifying the correctness of the ID if it exists; S2, from the numerical control system Obtain the variable data item whose ID exists and is correct; S3, calculate the precise time of obtaining the variable data item each time; S4, draw the curve of the obtained variable data item over time; S5, transfer the obtained variable data item to Stored in the table according to the sampling frequency. The online monitoring method of the numerical control system of the present invention collects numerical control machine tool data through the dynamic data exchange technology (DDE), can collect the processing process data efficiently in real time; can dynamically display the processing process signal during the data collection process, and is beneficial to monitor the processing trend in real time , to accurately control the real-time status of processing; by storing data in EXCEL according to the collection frequency, it can facilitate long-term data retention and further processing and analysis of data.