基于ZigBee技术的多传感器智能窗设计

为了促使建筑智能化,设计了一种新型的智能窗户,研究了其软硬件实现方案。该智能窗机械传动采用齿轮齿条传动,采用温湿度传感器DHT11、有害气体传感器MQ-2、人体红外热释电传感器作为环境监测传感器,通过ZigBee无线通信技术建立起了传感器网路。以MSP430F149单片机为控制核心,通过分析ZigBee协调器发送来的传感器信息,控制步进电机实现自动开关窗。实验结果表明,该系统实现了智能防盗、防雨、防有害气体,智能发送短信,语音提示等功能,具有良好的实用性和人机交互性。     

呼吸式远程智能窗系统设计

随着科学技术的发展,电子技术的应用也越来越广泛。窗户作为室内与外界交流的通道,与人们的生活息息相关。随着人工智能技术的发展,智能窗户越来越多的被应用与现代智能化的建筑中,为人们提供了安全、便捷的生活环境。从长远来看,智能家居是未来发展的方向,智能窗户会逐渐被越来越多的家庭多应用。本文介绍了远程智能窗的系统设计,以供参考。     

酒店空间格局与驱动力研究——以福州市中心城区为例

为了研究智能化和可控制化的雨天智能关窗装置,结合AT89C51单片机、YL-83雨水传感器、SG3525驱动芯片的特性设计控制系统,选用PLA塑料3D打印制作模型样机,采用雾化装置模拟不同降水条件下的雨水量。试验证明,该雨天智能关窗装置可以在无须人为干预的自动模式或通过手机控制的主动模式2种条件下实现窗户的开关,具有防止人为产生水滴导致的误触发和雨过天晴后自动开窗通风功能,完全可以满足用户的个性化需求,具有一定的实用价值。     

门窗防盗技木措施

智能住宅设计选型工作中,窗户和凉台的防盗设计,己成为当前系统设计和房产商选用的突出问题,本文结合实际工作发表些评述,与同行们商讨,以期提高智能住宅小区的实用水准.     

防幼儿跌落窗户开口自动调节装置设计

近十年来,儿童爬上窗户坠楼造成伤害的事件在全国各地时有发生,为此分析市面上的智能窗户,发现目前并无专门防范儿童坠落的窗户装置。结合防护安全知识,分析2～8岁儿童的身高和步速,根据光电检测原理,设计能够根据身高检测传感器判断有无儿童经过以相应调节窗户开口大小的装置;进而对装置主要构成部分的动力输出、丝杠传动做详细的分析,并对运动箱结构进行精心的设计;运动箱利用椭圆长短轴之差和开合螺母的特性实现运动控制。研究结果可为专门防儿童爬窗坠落机构设计提供参考。     

基于安全协议的智能灌溉系统设计

针对现有智能灌溉系统中数据交互的安全问题,设计了一种基于安全协议的智能灌溉系统.智能灌溉系统以此安全协议为核心,并设计身份认证模块、签名模块、签名验证模块,实现了安全协议.最后对智能灌溉系统进行实验与仿真,实验结果表明基于安全协议的智能灌溉系统运行效率高,在智能灌溉装置计算能力和传输能力较弱的情况下具有良好的适用性和安全性.     

智能化窗户的设计(英文)

窗户是大多数建筑物的必需设施,设计了一种智能化的窗户。该窗户可通过对室内室外的湿度、风速、光线强度、温度、煤气含量和二氧化碳含量等参数的测量,实现自动开启或关闭,或者通过通信模块向上级控制系统发出警报,从而实现窗户的智能化控制。     

带领导者的多智能体系统的基于事件触发的双向趋同

研究了具有领导者的多智能体系统的双向趋同问题.鉴于事件触发型的控制器具有更新频率低、节约通讯成本等优点,我们以跟随者的动力学为一阶积分器的多智能体系统为切入点,为跟随者设计了事件触发型的控制器.利用代数图论、矩阵分析和随机分析等相关理论,该文给出了所设计的控制器保证系统实现领导-跟随者双向趋同的通讯拓扑条件和增益条件,并且证明了这些条件是充分必要的.研究表明表征智能体间通讯关系的符号有向图结构平衡并且含有一棵生成树不仅是具有领导者的多智能体系统实现双向趋同的充分条件,也是必要条件.     

人机交互式智能垃圾收集系统的研制

为了实现垃圾回收的智能控制,以AT89S52单片机为控制核心,设计了一种自动开关盖垃圾箱.通过红外传感器接收发射原理,实现智能判断垃圾扔入及垃圾盖自动开启、关闭功能.通过试验证明,所研制的人机交互式智能垃圾收集系统具有很高的可靠性和稳定性.     

智能交通系统中的智能方法

运用智能方法对智能交通系统进行设计和管理, 重点解决了体系化发展、 智能化和资源共享问题, 使智能方法成为智能交通体系发展的重要核心. 它以现代人工智能及神经网络为基础理论, 围绕智能交通系统服务目标, 智能统筹各学科的优势资源, 实现应用体系各专业系统的和谐高效运行及服务. 它覆盖系统评估、 设计、 实施、 核心技术、 核心算法、 决策管理、 服务方式和关联应用各方面. 引入智能方法, 将使智能交通体系具有突出的公众服务特性, 更智能化、 体系化、 更安全和高效, 高度兼容的移动应用特性和便利信息共享将为智能交通系统体系提供新的发展空间.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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