In order to detect the aircraft grid harmonic better, we design a kind of dual CPU harmonic detection device based on Digital Signal Processor (DSP) and ARM. Harmonic detection algorithm using the combination algorithm of FFT and wavelet transform. The measured signal through binary wavelet transform is separated into high frequency part and low frequency part, high frequency part by wavelet analysis can get the transient component, and low frequency part by FFT can get each steady-state harmonic parameters. By this method we can not only get the every steady-state harmonic component, but also determine the transient and sudden change signals. Design of ARM software adopts the embedded Real-Time Operating System (RTOS) of μC/OS-Ⅱ. This device makes full use of the powerful control ability of ARM and the powerful operation ability of DSP, and can achieve a precise measurement of the harmonic in aircraft grid.
목차
Abstract 1. Introduction 2. Choice of Algorithm 3. Design of Hardware 3.1. Ac Conversion Module 3.2. Anti-Aliasing Filter Circuit 3.3. Synchronous Sampling and PLL Circuit 3.4. A/D Converter Circuit 3.5. Design of DSP Peripheral Circuit 3.6. DSP and ARM Data Communication Circuit 3.7. Keyboard and Display Circuit 3.8. Design of Communication with Host Computer Circuit 3.9. Design of LPC2294 Peripheral Circuit 4. Overall Design of Software 5. Porting μC/OS-Ⅱto LPC2294 5.1. μC/OS-Ⅱ Kernel 5.2. Required Conditions of Porting μC/OS-Ⅱ 5.3. Concrete steps of Porting 6. Extended RTOS Architecture of μC/OS-Ⅱ 7. Design of DSP Software 7.1. Data Collection Subroutine 7.2. Data Processing Subroutine 8. Conclusion Acknowledgements References
보안공학연구지원센터(IJCA) [Science & Engineering Research Support Center, Republic of Korea(IJCA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Control and Automation
간기
월간
pISSN
2005-4297
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Control and Automation Vol.8 No.3