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03041508
- 该双恒压供水控制系统是以PLC控制为核心，变频调速技术为基础，并结合压力传感器、变频器、水泵、继电器、接触器等组成。在此系统中，PLC将压力设定值与测量值的偏差经PID运算后得到的控制量作用到变频器，从而通过变频器控制水泵的转速调节管网的压力，实现恒压供水的目的-constant pressure of the water-control system based on PLC control at the core, VVVF technology as the foundation, and
GSM
- 本系统主要由单片机和GSM短信模块组成，借助最可靠、最成熟的GSM移动网络，以最直观的中文短消息或电话形式，直接把报警地点的情况反映到您的手机屏幕上。它采用主动式红外传感器进行检测，变有形的传统防盗网防盗窗为无形，给火灾时的逃生提供方便。并配备烟雾传感器和燃气泄漏传感器，实现防火、防燃气泄漏的作用。-The system is mainly by the single-chip modules and GSM text messages, with the most reliable, most
ns-2.33.tar
- WIRELESS SENSORS NETWORK SIMULATION SOFTWARE
system-based-on-GSM-SMS-module
- 采用主动式红外传感器进行检测，并配备烟雾传感器和燃气泄漏传感器，实现防火、防燃气泄漏的作用。-Active infrared sensors to detect, and change the traditional anti-theft network security windows tangible for the intangible, to the fire escape. And equipped with smog sensor and gas leak sensors, fire
UniNetProductDesignDocument
- UniNet网络主要面向农业、水利和生态环境领域应用的一套融合智能传感器、无线传感器网络和M2M网络的物联网系统。-The UniNet network mainly for the fields of agriculture, water conservancy and ecological environment of Things applications that will integrate smart sensors, wireless sensor networks and M2M
FESHER
- Energy consumption is prominent and critical issue faced by wireless sensor networks. The maximum amount of energy is consumed when the sensors communicate with each other. Therefore energy efficient routing mechanisms are required. In this paper
-hierarchical-routing-protocols.pdf.tar
- The routing of data collected in a wireless sensor network (RCSF) consumes the Part of the energy of the sensor nodes. To this end, several routing approaches have been proposed to conserve the energy resource at the level of the sensors. In this a