摘要
目的为构造智能小区无线抄表系统,设计无线通信的集中器.方法通过搭建该无线抄表系统结构框图,采用模块化设计方法,利用nRF905设计了一种低成本、低功耗、抗干扰性强的集中器,并对集中器进行了测试.结果结果nRF905的高灵敏度为其提供了稳定的传输距离,即使使用无增益的PCB天线其传输距离也可达350 m左右,采用高增益的天线可达到800 m以上,可以满足小区内的需要.结论实验证明,无线通信的集中器避免了长距离布线和复杂的线路干扰,具有结构简单、工作可靠、经济实用等特点,可以用于小区的报警和安全系统.
In order to build the wireless meter reading system in smart home, the wireless concentrator has been designed. The framework of wireless meter reading system has been designed by blocking method. The concentrator has been designed, which is low cost, low consumption and strong anti-jamming. The sensitivity of nRF905 can make data transmit steadily. Data can be transmitted about 350 meters by non-gain PCB antenna or about 800 meters by high gain antenna. The experimental results indicate that the wireless concentrator can avoid the long wiring and disturbing of complicated circuit. The wireless concentrator can be applied to alarm and safety system in residence community with the characteristics of simple structure, reliable operation, economy and practicality.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2009年第4期808-812,共5页
Journal of Shenyang Jianzhu University：Natural Science
基金
建设部科研基金项目(2007-k3-4)
