基于GSM短信模块的家庭防盗报警系统
上传时间: 2013-11-12
上传用户:tanggm
温湿度传感器检测设计
标签: 自动检测
上传时间: 2013-11-21
上传用户:秦莞尔w
热释电红外报警系统设计
上传时间: 2013-10-22
上传用户:comua
智能语音拨号报警系统
上传时间: 2014-12-29
上传用户:vodssv
单片机智能温度报警系统
上传时间: 2013-10-12
上传用户:ABC677339
传感器与自动检测技术
上传时间: 2013-11-20
上传用户:Aeray
MC68HC11G5在自动门控制系统中应用
上传时间: 2013-11-01
上传用户:zhishenglu
结合红外防盗报警和ZigBee技术这两大热点课题,利用TI公司的单芯片CC2430和RE200B红外传感器,完成了基于ZigBee技术无线红外防盗报警系统的硬件设计和软件开发,解决了现有无线报警系统存在的误报警,成本高等问题。经过对系统的硬件软件电路调试,验证了系统预期的功能。
上传时间: 2014-12-30
上传用户:叶夜alex
设计一种基于GPRS 和51 单片机的彩信报警系统。利用单片机技术、带彩信协议GPRS 无线通信模块、图像捕获和图像压缩编码功能模块,实现原理图设计到电路板设计开发。
上传时间: 2013-11-10
上传用户:china97wan
在研究传统家用燃气报警器的基础上,以ZigBee协议为平台,构建mesh网状网络实现网络化的智能语音报警系统。由于传感器本身的温度和实际环境温度的影响,传感器标定后采用软件补偿方法。为了减少系统费用,前端节点采用半功能节点设备,路由器和协调器采用全功能节点设备,构建mesh网络所形成的家庭内部报警系统,通过通用的电话接口连接到外部的公用电话网络,启动语音模块进行报警。实验结果表明,在2.4 GHz频率下传输,有墙等障碍物的情况下,节点的传输距离大约为35 m,能够满足家庭需要,且系统工作稳定,但在功耗方面仍需进一步改善。 Abstract: On the basis of studying traditional household gas alarm system, this paper proposed the platform for the ZigBee protocol,and constructed mesh network to achieve network-based intelligent voice alarm system. Because of the sensor temperature and the actual environment temperature, this system design used software compensation after calibrating sensor. In order to reduce system cost, semi-functional node devices were used as front-end node, however, full-function devices were used as routers and coordinator,constructed alarm system within the family by building mesh network,connected to the external public telephone network through the common telephone interface, started the voice alarm module. The results indicate that nodes transmit about 35m in the distance in case of walls and other obstacles by 2.4GHz frequency transmission, this is able to meet family needs and work steadily, but still needs further improvement in power consumption.
上传时间: 2013-10-30
上传用户:swaylong