基于GPRS的城市供热监控监测系统

设计一种将GPRS、Intemet、PLC等技术融为一体的市区供热监控监测系统,给出基于GPRS网络远程监控系统的整体方案、各功能的实现以及运行结果,提供一种对分散且数据量较大的数据采集点进行监控的有效手段。系统实测运行结果表明该系统操作方便、远程监控效果良好,可以满足远程监控管理和长周期稳定运行等要求。     

基于ZigBee技术的离子浓度远程监控系统

为了实现对远程电镀厂区离子浓度的实时远程监控,设计了一种基于Zig Bee无线传感网络技术的离子浓度远程监控系统,系统采用Zig Bee无线传感网络技术并结合GPRS技术和图形化编程软件Lab View 2011实现,设计的系统最终实现了对远程厂区离子浓度的实时远程监控。经实际的运行测试表明,达到了对远程厂区离子浓度进行远程实时监控的设计要求,为电镀行业中镀件产品科学、高效、安全、优质的加工生产提供了可靠的保障。     

基于WSN的远程水产养殖监控系统

设计一种基于无线传感器网络的水产养殖监控系统.方案利用CC2530芯片和外围接口搭建系统硬件,基于Zig Bee协议栈与GPRS结合的技术,实现远程监控.采用VB语言编写系统的上位机界面,通过网络实时监控现场运行情况,并且可以根据实际情况调整设备的运行状态,自动记录历史数据,方便查询分析.     

基于物联网技术的监控系统研究

一种基于物联网技术的室内监控系统将温度、感烟和一氧化碳等探测器采集到的环境信号输入到中央处理器进行数据融合和智能分析,然后将处理结果通过GSM/GPRS无线通讯实时传递给该室主人进行远程交互,实现远程监控。     

基于GPRS嵌入式远程图像综合监控系统的研究与实现

结合嵌入式系统、GPRS网络技术和图像分析技术,设计和实现了一种基于ARM9微处理器的远程图像综合监控系统。     

基于GPRS的分布式人防及灾害警报遥控系统的实现

介绍一种基于GPRS移动网的人民防空及灾害警报遥控系统的实现方案。该系统采用中国移动通信公司最新推出的GPRS无线数据通信技术实现人民防空及灾害警报器的远程播放和监控，具有控制响应快、建设和维护成本低、便于推广等优点。     

基于GPRS的远程可燃气体检测系统研究与设计

随着我国地下管道可燃气体爆炸事故时常发生,对可燃性气体进行实时检测是十分必要的。设计一种以STM32处理器为硬件平台,基于EM310 GPRS模块的远程可燃性气体检测系统。阐述了以GPRS网络为基础的远程可燃性气体检测系统中的软硬件处理技术。测试结果表明,该系统具有实时检测甲烷等可燃性气体的功能,通过IP数据流方式传送数据信息,实现了对可燃性气体的远程监控。     

基于GSM的远程报警系统

该文介绍了一种基于GSM（全球移动通信系统）网络SMS（短信业务）的远程报警系统。它由各种传感器、无线GPRS模块和一个以单片机为核心的报警监控单元组成,报警监控单元通过串口和GPRS模块进行通讯。通过GPRS模块终端,使工业现场、商业现场和家庭室内情况能够通过手机中文短信实时地对用户进行报警。     

基于GPRS的远程数据服务系统设计与应用

利用GPRS进行远程监控在现代社会生活中得到了广泛应用。阐述了GPRS的通信原理,结合TCP/IP通信协议开发出GPRS远程数据服务系统,介绍了系统设计原理和实现过程。     

基于GPRS技术的污水处理厂监控系统设计与实现

介绍了GPRS技术,针对污水处理厂分散生产集中运行管理,自动化、信息化管理水平偏低,有待提高的现状,设计和实现一种基于GPRS的污水处理厂监控系统方案。阐述了污水处理厂监控系统的结构体系、组成、关键技术和功能。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.