摘要
为提高电池能量利用率,降低温室环境无线采集节点功耗,延长节点寿命,以16位低功耗MCU(MSP430F149)和CC1101射频模块进行温室环境无线采集节点硬件设计,电源管理模块采用TPS63031芯片实现双电源供电,即节点在工作和休眠状态下分别采用3节AA南孚电池和1节3 V纽扣电池供电,通过DC-DC转换,电池可使用能量提高22.8%。软件协议采用有限状态机(FSM)模型设计,实现节点工作模式和休眠模式的任务调度,使节点休眠时进入LPM3深度休眠,大大降低节点功耗。电池放电试验和节点性能测试试验表明,在设定30 min采集周期下,设计的供电方案可保证节点11 019.8 h(约459.2 d)的可靠使用寿命。
To improve battery energy efficiency and reduce power consumption of wireless collection nodes for greenhouse environment, hardware design for Greenhouse Wireless Acquisition nodes is achieved by low-power 16-bit MCU （MSP430F149） and RF module CC1101. Power management module is designed based on chip TPS63031 to implement dual-power supply, which allows nodes＇ power supplied respectively by three Nanfu-AA batteries and one 3 V button battery under working and sleeping mode. And 22.8% usable energy of batteries is improved effectively by using the DC - DC conversion. FSM module is adopted to software protocol design, implementing nodes＇ task scheduling between working mode and sleeping mode. When the LPM3 mode is entered, node＇s power consumption is greatly reduced. Thedischarge experiment of batteries and test of nodes performance show that design of power supply scheme in this paper guarantees node work for 11 019.8 h （about 459.2 d） ,with the setting of 30 min acquisition cycle.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2014年第11期298-303,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家高技术研究发展计划(863计划)资助项目(2008AA10Z226)
江苏省产学研前瞻性联合研究资助项目(SBY201220009)
