Cheng Liang

Shanghai Electric (China)

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

analysis of Circulating Water Pump Selection and Configuration of AP1000 Nuclear Power Plant

Mechanical & Electrical Engineering Technology (2012)

Cheng Liang

The proper choose of circulating water pump model is direct affect the economic and security of Nuclear Power Unit.This article gives the recommendatory scheme after comparison of metallic pump and volute pump form the aspect of type choosing,scheme choice and economy comparison,and points out the merits,defects and the applicable scope of each scheme.

Scope (computer science)

Volute

Circulating pump

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A System Framework for LTE SON

Advanced engineering forum (2012)

Zhan Jun Liu Ren Cong Cheng Liang

To meet the requirements of reducing human intervention and operational expenditures (POEX) of LTE SON (Self-organization Networks), a system framework for LTE SON is designed in this paper. In order to match the standard IRP (Integration Reference Point), the framework is divided into six layers, and then functions of some layers are presented.

LTE Advanced

10.4028/www.scientific.net/aef.4.22

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Resource Sharing System in Product Design Based on Service Oriented Architecture

Jisuanji gongcheng (2007)

Cheng Liang

This paper presents a system of encapsulating,releasing and requiring remote resource in product design and describes the detail in system development.An effective way to require and integrate design resource is outlined that this resource be encapsulated to Web-service based on service oriented architecture.Solution of this kind of system based on Java is given with the example of utilizing a remote design resource-constraints solver,which proves the rationality of system architecture and the feasibility of development solution.

Shared resource

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A New Intelligent Approach Based on Genetic Algorithm for Finding Optimal Base Stations Configuration in the Dynamic Scenario Used in SON

Applied Mechanics and Materials (2011)

Qian Bin Chen Yang Wang Zhan Jun Liu Cheng Liang

The problem of automatic selection and configuration of base station sites in the dynamic scenario is investigated. We propose a intelligent approach based on Genetic Algorithm used to adjust the level of the antenna power and select the base stations’ site from the candidate sites. According to the users’ density the base stations adjust their antenna radiated power automatically. Results are given that most of base stations are powered off when the density becomes very low, and show that it will save lots of energy resources. Since this algorithm can adjust the status of base stations intelligently and automatically, it can be used in SON.

Base (topology)

Selection algorithm

10.4028/www.scientific.net/amm.121-126.4325

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Citations (1)

A Monitoring System Design of Intelligent Household Temperature And Humidity Based on ZigBee

Journal of Northeast Dianli University (2012)

Cheng Liang

The temperature and humidity monitoring system as a household security system subsystems,within the horse to play a role for warning fire.In this paper designed a wireless temperature and humidity detection system,terminal node is composition by CC2430 chip and digital temperature and humidity sensor SHT10,wireless communication by ZigBee,the data by the coordinator node is sent to the host computer to be processed.The system integrate collecting temperature and humidity signal,wireless transmission and display.The wireless terminal nodes work on the place in which will be monitored,collect temperature and humidity data and sand the by wireless.

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Selection of representatives for feedback suppression in reliable multicast protocols

Electronics Letters (2001)

Cheng Liang Ng Chee Hock Liren Zhang

The representative scheme in which a small set of multicast group members are selected as representatives to represent congested areas and hence suppress feedback from other receivers is an effective way of avoiding feedback implosion. Two algorithms used for selecting group members as representatives are further investigated. It is shown through simulation that the algorithm that selects representatives using the loss probability observed at the receivers is more effective in reducing the feedback returned.

10.1049/el:20010044

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Citations (6)

Compensation of Phase Modulation Disturbance in All Fiber-Optical Current Transformer

Applied Mechanics and Materials (2013)

Yun Han Luo Li Jia Xia Cheng Liang Jian Yu Jun Zhang

In order to improve measurement accuracy of all fiber-optical current transformer (FOCT), an improved demodulation algorithm was proposed for a sine modulation. The formula for effective phase modulation depth (EPMD) was firstly presented, and three kinds of potential external disturbance in EPMD were analyzed. To overcome the current measurement error induced by these EPMD disturbances, we put forward an improved algorithm for time-dependent measurement of EPMD by second- and fourth-order harmonic component of optoelectronic signal. A simulation experiment in different disturbance intensity were carried out, and the results showed that when measured current is between 200A~1500A,the proposed algorithm can enhance the current measurement accuracy by over 30 times than the conventional algorithm, and measurement relative deviation can be maintained below 0.2% if the disturbance intensity is below 5%.

Harmonic

10.4028/www.scientific.net/amm.291-294.2317

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Citations (1)

Feedback control using representatives and timer in reliable multicast protocols

Cheng Liang Ng Chee Hock Liren Zhang

Feedback implosion is one of the crucial issues related to the scalability of reliable multicast protocols. Generally speaking, in timer-based solutions, when a receiver needs to send feedback, it multicasts the feedback to all receivers early enough, hence suppressing others from returning feedback in response to the same event. In this paper we present an effective end-to-end negative acknowledgment (NACK) control algorithm which could solve the problem caused by correlative packet loss and independent packet loss among receivers.

Timer

Packet loss

10.1109/tencon.2000.893685

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Citations (2)

On-line monitoring system for substation using internet of things

Diangong Dianneng Xinjishu (2013)

Chunming Wu Cheng Liang Tian Zhangchao Xiaomin Mu

Line (geometry)

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Variable Condition Calculation and Features Analysis for Direct Air-Cooled Condenser of 3000 kW Power Plant

Journal of Shanghai Institute & Electric Power (2005)

Cheng Liang

In this paper, the performance of Air Cooled Condenser (ACC) for 3000 kW unit is calculated and the characteristic curve is drawn. The influences of the frontal velocity of air, the temperature of the air and the heat load of the condenser on the performance of the ACC are also analyzed.

Condenser (optics)

Air velocity

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