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IEC 61850 is an international standard for digital substation automation systems based on network communication platform. It has been widely used in power generation, transmission, distribution and scheduling. The protocol implemented unified modeling for object, enhanced interoperability and interchangeability between different terminals. In this paper, we apply the protocol is to power and environment...
Nowadays, unattended monitoring system has been widely used in substation for its efficiency and efficacy, and it sometimes may cause safety problems for utility workers. In order to ensure workers' safety, in this paper, we focus on the problem of illegal human ladder climbing action recognition in substation using vision-based algorithm. Specifically, we first detect “forbidden” and “allowing” types...
JavaScript libraries, such as JQuery, are widely used in web applications. In these libraries' event delegation models, a DOM element's event handler is usually bound to its parent nodes. This makes it difficult for developers to figure out the user-defined event handlers of a specified DOM element. In this paper, we propose an approach that identifies the user-defined event handlers of DOM elements...
In this paper, a method of analysis and design of branch waveguide coupler is discussed for power allocation, compound and monitoring. This method called even-odd mode which gives any coupling ratio and any number of branch-guide with perfectly match, high isolation and low insertion loss. The expression is deduced in the paper and according to the method, an 8dB coupler in W band is easily designed...
The paper presents and designs a new-style gas monitor terminal in coal mine based on ARM chip called S3C2410A, which means the hardware and driver's designation of system uses S3C2410A as its central processing unit and also expounds the detail of software and hardware design. The system communicates with metrical instrument by the RS485 BUS. It can monitor the mine gas in network. It has good man-machine...
The CTCS Hardware-In-the-Loop Simulation (HILS) system is currently under developing and needs to be tested thoroughly. According to the requirements of concurrency and configurability, a test process model based contract-checking test method (CCTM) is proposed to execute the test verdict on-line. By analyzing several test applications, the test process could be abstracted as a test event chain. And...
Soft-error induced reliability problems have become a major challenge in designing new generation microprocessors. Due to the on-chip caches' dominant share in die area and transistor budget, protecting them against soft errors is of paramount importance. Recent research has focused on the design of cost-effective reliable data caches in terms of performance, energy, and area overheads, based on the...
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