低功耗单跳无线网络实时数据采集系统设计

单跳无线网络监控方便、传输路由简单,提出以单跳无线网络架构实时数据采集系统。由时间同步和轮询阶段组成的周期工作机制,在轮询阶段传感节点进行周期性激活与休眠。设计了由CC2500射频模块和C8051F330/320单片机组成的节点硬件平台,提出通过减少节点活动时长和降低系统时钟频率对传感节点进行低功耗设计。由节点硬件平台组建了一个多点温度同步采集系统,通过实际测试,温度采集数据能实时传送,传感节点的能量节约效果显著。

Design of low-power real-time data acquisition system based on single-hop wireless networks

Single hop wireless networks have some advantages such as simple transmission route and convenience in monitoring. A data acquisition system based on single-hop wireless networks is proposed. A periodic working pattern with time synchronization phase and polling phase is proposed. Sensor nodes are activated and sleep in the polling phase. The node hardware platform based on CC2500 RF module and C8051F330/320 MCU is designed. Low power design is realized through switching high frequency clock to low frequency clock and reducing time of activation. A multiple- node temperature acquisition system based on the node hardware platform is designed, which can transmit data in real time and significantly reduce the energy consumption for sensor nodes.