摘要
为了提高无人机电源系统的可靠性,根据某型无人机电源特性,设计了一套以ARM芯片LPC2138为控制核心的无人机电源机内测试系统,给出了该系统的硬件组成及软件设计;详细介绍了硬件电路中的主控电路与信号检测调理电路,提出了用ARM芯片内的定时器模块来巧妙实现交流电源相位与频率检测的方法,并引入基准源电路来提高整个系统的精度;描述了软件的功能及其实现方法,给出了某典型量的处理流程图;实际使用证明,ARM芯片的采用简化了外围电路设计,降低了功耗,使系统能以较高的精度及可靠地完成无人机电源机内测试任务。
In order to improve the reliability of UAV power system, this article talks a UAV power BIT system and it＇ s hardware and software design. This system whose design is based on the UAV power characteristics uses ARM chip LPC2138 as the core of control circuit. The main control circuit and signal detection circuit of the hardware circuit are introduced particularly. AC power＇ s phase and frequency are detected skillfully with the timer module in ARM chip and the system＇ s accuracy is improved by making use of the reference source. This ar- ticle also gives the （unction and implementation of the software and a typical t＇low chart of a certain processing. It has been proved in practical application that the use of the ARM chip simplifies the external circuitry, reduces power consumption and is able to make the system accom- plish UAV power Build--in--test task reliably with high precision.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第7期1509-1511,共3页
Computer Measurement &Control
