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Real-timeliness and reliability are two basic requirements for industrial wireless sensor networks (IWSNs). In this paper, periodic heterogeneous traffics with delay constraints are concerned in an IWSN with multiple access points (thus forming a redundant star topology). In order to improve the reliability while meeting the real-timeliness and fairness, we propose a fairness-aware scheduling (FAS)...
The Al-doped zinc tin oxide based RRAM with non-linearity characteristic was demonstrated. The inhabit ratio (I.R.) of 34 was achieved by inserting ∼2nm Al2O3 tunnel barrier to ensure the possible incorporation of RRAM cell into high density cross-type array structure. Furthermore, the reliability with endurance and retention are also examined.
Addressing the extremely high reliability is a critical problem of wireless control system in actual industrial applications. In this paper fully considering the characteristics of the wireless network transmission and industrial automation application, a grouping TDMA access approach based on multiple access points is proposed. The main idea is that: redundant multiple access points are applied in...
As a crucial part of the control system of a centrifugal compressor, it is very important to assure the reliability and practicability of anti-surge control system. In this paper, the mechanism of compressor surge is introduced, and the features are analyzed. In order to test the Safety Integrity Level (SIL) of the compressor surge control system in a gas station, the Layer of Protection Analysis...
Reciprocating compressor is the key equipment in the process of industry production such as oil refinery, chemical plants and so on. The traditional maintenance management model is the fire type which results in the lower reliability, lower availability and lower safety. In this paper, in order to reduce the uncertainty of maintenance, the number of system failures and failure effects, as well as...
An adaptive and reliable transmission scheduling algorithm for wireless sensor networks based on the low-cost estimation of channel states is proposed to jointly optimize the superframe length and reliability. We establish a hierarchical scheduling framework, which includes a global centralized timeslot scheduling (GCTS) and a local distributed channel scheduling (LDCS). On one hand, GCTS aims to...
In this paper, a novel Chinese character localization method is proposed for texts in advertising images. To deal with the texts with gradient color, a color clustering method based on edge is introduced to separate the color image into homogeneous color layers. To solve the problem of locating characters varied in size, style and arranged in irregular direction, a novel character localization method...
The italic detection and slant rectification is a key step of optical character recognition (OCR). In this paper, a novel method is proposed to detect and rectify italic characters in Chinese advertising images. Based on observations on structures of many characters, the centroid angle is proposed and a statistical study on it is presented. According to the statistical results, the centroid angle...
Embedded Wafer Level Package (eWLP) is designed and developed. The eWLP consists of one silicon die encapsulated with a mold compound and its size is 12mm × 12mm × 0.2mm. The assembly process of eWLP consists of reconfiguration of the dies on an adhesive tape, followed by molding, thinning and rerouting distribution layer (RDL) process. Finite Element Modeling (FEM) is used to understand the stress...
A rehabilitation training system based on multi-parameters status monitoring and information fusion is discussed in this paper. The signal processing system is built with MSJP430 series MCU. Soft judgment is carried out based on all kind of information from the force on driving wheel, the speed of driving motor, the stress of patient's sit gesture from sensor array. Specific observation domain is...
PBTI degradation for HfO2 and HfSiON NMOSFETs has been demonstrated. The generated oxide trap dominated the PBTI characteristics for Hf-based gate dielectrics. In addition, the reduction of DeltaVTH and oxide trap generation under PBTI indicates that the HfSiON is better than HfO2. On the other hand, the electron trapping/de-trapping effect has been investigated. As compared to HfO2 dielectrics, the...
Typhoon is one of the most destructive natural calamities. Statistical data on 1949–1990 typhoons in China were used to analyze the frequency and strength of the typhoons, the relation between them and the average global ground temperature. The probability distribution of wind speed and the load of low buildings were obtained respectively on the basis of statistical data on the No. 9015 and No. 9711...
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