CAJ | 학술논문

传感网络中外部信号干扰与传感信号的同质化日趋严重,设计可区分两者信号的传感网络滤波器成为研究的热点.设计一种高精度有源滤波器系统,该系统包括电源模块、两个DSP控制模块、信号采集与调整模块、驱动模块和显示模块.分析并联型有源滤波器的运行原理,采用CCS2.0设计传感网络中有源滤波器系统软件,详细描述了系统软件开发模型,给出了滤波器中的部分C语言代码.实验结果表明,所设计滤波器在传感网络电压畸变及负载突变情况下,能够较好地完成谐波抑制,具有较强的应用性.
전감망락중외부신호간우여전감신호적동질화일추엄중,설계가구분량자신호적전감망락려파기성위연구적열점.설계일충고정도유원려파기계통,해계통포괄전원모괴、량개DSP공제모괴、신호채집여조정모괴、구동모괴화현시모괴.분석병련형유원려파기적운행원리,채용CCS2.0설계전감망락중유원려파기계통연건,상세묘술료계통연건개발모형,급출료려파기중적부분C어언대마.실험결과표명,소설계려파기재전감망락전압기변급부재돌변정황하,능구교호지완성해파억제,구유교강적응용성.
Since the homogenization of the external signal interference and sensing signal in sensing network is increasingly serious,the design of sensing network filter which can distinguish the two signals has become the research focus. A high preci-sion active filter system was designed,which includes power module,two DSP control modules,signal acquisition and adjust-ment module,drive module and display module. The operating principle of the parallel active filter was analyzed,and the sys-tem software of the active filter in sensing network was designed with CCS2.0. The development model of system software is de-scribed in detail. The partial C language code in the filter is provided. The experimental results indicate that the designed filter can better accomplish harmonic suppression under the conditions of voltage distortion and load sudden changing in sensor net-work,and has strong applicability.