摘要：High-power equipment running on the accelerator site needs to be cooled with water to guarantee stably running of the *** leakage detection and alarm system could play a pre-warning role for the drip,a small leak and seepage on the site everywhere,which could remind maintenance staff to deal with water leakage point timely to avoid damaging equipment.

摘要：Photovoltaic (PV) systems have attracted increasing attention in last years as well as Wireless Sensor Networks (WSNs), which have been used in many application fields. In PV plants, especially in ground installations, a lot of thefts and damages occur due to the still high cost of the modules. A new experimental WSN ad-hoc has been designed to be an anti-theft alarm system. Each node of the network is directly installed under each PV string and it is equipped with an accelerometer sensor capable to detect a minimum displacement of the panel from its steady position. The WSN presents a star topology: a master node cyclically interrogates the slave nodes through RF link. It collects all the nodes responses and communicates though a RS-232 interface with a control PC checking the network status. When a slave node detects an alarm, continuous messages are sent to the control PC which turns on all the alarm signaling systems. The control PC is equipped with an open source operative system and software and provides for SMS, e-mail and sound-light signaling in case of alarm. It also communicates with a remote server where all the WSN information is stored. A first low cost experimental WSN has been already installed and it is working properly.

摘要：In this work a review of existing fire-detector types has been carried out along with the development of a low cost, portable, and reliable microcontroller based automated fire alarm system for remotely alerting any fire incidents in household or industrial premises. The aim of the system designed is to alert the distant property-owner efficiently and quickly by sending short message (SMS) via GSM network. A Linear integrated temperature sensor detects temperature beyond preset value whereas semiconductor type sensor detects presence of smoke or gas from fire hazards. The sensor units are connected via common data line to ATMega8L AVR microcontroller. A SIM300CZ GSM kit based network module, capable of operating in standard GSM bands, has been used to send alert messages. The system is implemented on printed circuit board (PCB) and tested under different experimental conditions to evaluate its performances.

摘要：沙漠风暴已经提供了足够的信息,可以形成对皇家空军最新的空中发射武器,英国宇航公司(BAe)的空中发射反辐射导弹(alarm)的真实情况的了解。为了设计压制与防空系统有关的敌方雷达,ALRAM(空中发射反辐射导弹)是以英国空军参谋部1228号文件开始的。用这种导弹给英国皇家空军的“旋风”

摘要：The objective of this work is to design, develop and implement an alarm system that triggers the alarm and alerts the owner via a mobile text message if the house has been opened or an attempt has been made to open it illegally. The system will also feature two different forms of activation/deactivation and will automatically open or close the door for the user. The advantages of this house-mobile security system (HMSS) are its high security level, robustness, low cost and ease of use (uncomplicated) and that there is no distance limitation for contact. The system integrates different sensors via a microcontroller, which is the brain of the system, in order to avoid the problem of false alarms sent by other alarm monitoring systems to ‘alarm Receiving Centers’ or Police departments. The HMSS is useful in homes, small businesses, offices, warehouses, etc.

摘要：This paper deals with the design of an intelligent access control system based on the fingerprint sensor FPC- 1011C. The design uses the S3C2410 and TMS320VC5510A as the system processor. A fingerprint acquisition module and a wireless alarm module were designed by using the fingerprint sensor FPC1011C and GPRS module SIM100 respectively. The whole system was implemented wireless alarm through messages and GPRS-Internet in the GSM/GPRS web. In order to achieve the simple and high Real-time system, the μC-Linux system migration was also implemented.

摘要：目的设计合成2个系列新型聚腺苷二磷酸核糖聚合酶-1(PARP-1)抑制剂并测定其体外抗肿瘤细胞增殖活性。方法以上市药物为先导化合物,设计合成了系列以6,8-二氟-2-硫代-2,3-二氢喹唑啉-4(1H)-酮及6-氟-2-硫代-2,3-二氢吡啶并[2,3-d]嘧啶-4(1H)-酮为母核结构的化合物。采用alarm Blue法测定目标化合物对体外培养的人源乳腺癌细胞MDA-MB-436的增殖抑制作用。结果与结论合成了10个未见文献报道的新化合物,其结构经1H-NMR、13C-NMR、质谱确证。初步体外细胞活性结果表明,目标化合物对MDA-MB-436细胞具有一定的增殖抑制作用(IC50值为14.1~1 246 nmol·L^-1);具有6,8-二氟-2-硫代-2,3-二氢喹唑啉-4(1H)-酮母核的目标化合物16a^16e对MDA-MB-436细胞的抑制活性普遍高于目标物16f^16j,其中,化合物16c的抑制活性略低于阳性对照药奥拉帕尼;6,8-二氟-2-硫代-2,3-二氢喹唑啉-4(1H)-酮母核具有一定的抑制肿瘤增殖活性,可为化合物进一步的结构修饰提供参考依据。

摘要：本文根据多项的火灾自动报警系统编程的工程实践,对火灾自动报警系统编程设计中一些值得注意的问题和现场编程调试的一些经验作了回顾和探讨。

摘要：随着Android系统手机的普及,越来越多的软件开发者投入到Android平台编程的队伍中。在项目开发时,经常会被要求实现定时任务功能,而Android平台下实现定时任务的方法有很多,各有优缺点。本文重点介绍基于系统时钟(alarm Manager)来实现定时任务并以状态栏通知(Notification Manager)的方式通知用户的功能设计与实现。

摘要：英国SGSystems公司是一家全球领先的防盗和CCTV设计解决方案提供商，该公司近期发布了一种远程无线可视验证系统——alarm View Smart View，它能够作为独立的入侵警报系统使用，或者连接到任何现有的系统，如果有报警情况发生，或者确定有入侵报警情况，系统可以提供可视的验证功能。这种智能化的系统适用于专业监测站以及所有的入侵报警安装商。