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It is difficult to monitor switching substation (power distribution room) due to the characteristics of large number and regional dispersion. This paper studied and designed to achieve an integrated multi-dimensional visual monitoring and management platform for monitoring the running state of the switching substation (power distribution room). The platform takes the running state of primary/secondary...
Distribution network model and geographical distribution map are usually provided to the distribution network automation system by geographic information system, the distribution network logical views for dispatcher are realized by automatic diagraming technology based on the distribution network model or drawn in hand. Because the distribution network scale is large, single view not compatible with...
In this paper, we propose a Fast Locality-constrained low-rank sparse coding for image classification. The low-rank coding seeks the homogeneousness and correlation of local features, encodes jointly and globally, based on the traditional low-rank coding, we incorporate locality constraints to enforce the local features sharing the same representation. Considering that the traditional low-rank coding...
Investigating the stability of information spreading over SNS helps to understand the principles inherent in the spreading behavior. This paper explores the mechanisms of information spreading including stifling mechanism, latent mechanism and forgetting mechanism, establishes a refined SEIR model, and builds the corresponding mean-field equations. The methods of the differential dynamics and the...
In wireless sensor networks(WSNs) code dissemination is an important technology to remotely add new functionality or fix bugs after the sensors are deployed. As WSNs is usually in hostile environments, secure code dissemination has been a major concern. Most code dissemination protocols are Deluge-based which have to take much energy and memory to deal with the problem caused by out-of-order-delivery...
Insulation failure is one of the major causes of catastrophic failure of high voltage apparatus. It is important for the study of partial discharge behavior in electrical apparatus to know the degration of insulating materials. This paper focuses on the analysis of acoustic signal produced by partial discharge in insulation oil. The needle-plane electrode system is assembled to simulate the partial...
One of the most serious droughts in last century occurred in Sichuan Basin in the summer of 2006. In this paper, three different methods were used to monitor this drought. The first method is TVDI (Temperature Vegetation Dryness Index). The second method is TMVDI (Temperature Microwave Vegetation Dryness Index). NDVI in method one was replaced by MVI. Because the microwave radiometer data can be obtained...
OPC (OLE (object linking and embedding) for Process Control) UA (Unified Architecture) is a new standard for communication between automation systems and devices. Class OPC is widely used, but it is limited in some application areas. It is necessary that OPC UA is Compatible with the existing products. The migration strategies from Class OPC to OPC UA are introduced in the article. The paper focuses...
This paper presents a new scheme to retrieve cloud liquid water (CLW) over land using AMSR-E brightness temperatures (TB) without the help of ancillary data. A surface emission model, Advanced Integral Equation Model (AIEM) and an one-dimensional atmosphere transfer model (1DRTM) were combined to generate a database. Through analysis of the simulated dataset, it is found that the ratio of the polarization...
Early in 1999 the Yangjiaping Power Supply Bureau started to explore power distribution automation which was then put into operation in 2005 and passed the examination of the Chongqing Electric Power Corp. With ten years efforts of construction, operation, exploration, the Yangjiaping power distribution automation system has been operating in a stable way and has provided a cogent guarantee for the...
The process of offset plate copy is controlled through the correct reproduction at the highest and the lowest tone. We propose that we should control the whole tone, and we need the correct control method. Based on the offset control strap, this paper proposes a new detected method of plate resolution and analytic method of the correct copy range of plate. Using these methods and through the experiment,...
The colorimetric evaluation methods for ink trapping are put forward in this paper. The first is based on ideal overprint of inks. The other is based on the psychological chroma of ink colors. After the computational method and process obtained ink trapping values through several evaluating methods were discussed and analyzed, the following results were given. The densitometric evaluation method for...
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