Hardware design of muftichannel and signals highprecision detection system based on FPGA and DSP
LI Anyang1, YANG Wensheng1, HE Min2
(1.Shanghai Marine Electronic Equipment Research Institute, Shanghai 201108, China; 2.School of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China)
 

Abstract: Aiming at the problem of detecting and processing a lot of sensors and parameters in field like electromagnetic detection and power quality detection, some studies in detecting channels selection, the sampling rate setting, detection accuracy, sampling time setting and the capability in data processing was given. Through the conclusion of sampling method, control strategy and operating efficiency, an architecture of DualCPU in DSP and FPGA was proposed in the hardware design of detection systems. In the system, FPGA completed data acquisition related parameters control like channels selection, sampling time and rate setting, but parameters configuration, detected datas processing, communication with hoster and so on were completed by DSP. The relationship between control hoster, detection channels, detection time and detection data was established based on work specialization. Data collection, storage, processing and display were realized through this system. The results indicate that the DualCPU system is flexible in detecting channels selection and times control, high precision and timely data processing.
Key words: multichannel; high precision; detection systems; hardware design