文献类型：期刊文献

英文题名：Aquaculture Fish Counting and Mass Estimation Method Via Vibration Signal Processing

作者：Qian, Liwen[1,2]; Yu, Guoyan[1,2]; Liu, Haochun[1,2]; He, Junxi[1]; He, Zijian[1,2]

机构：[1] School of Mechanical Engineering, Guangdong Ocean University, Guangdong Province, Zhanjiang, 524088, China; [2] Guangdong Marine Equipment and Manufacturing Engineering Technology Research Centre, Guangdong Ocean University, Guangdong Province, Zhanjiang, 524088, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240294200)

语种：英文

外文关键词：Grading - Mean square error - Regression analysis - Signal processing - Vibration analysis

外文摘要：Information on the mass and counts of fish at different growth stages is crucial for precision feeding management and the improvement of fish farming environments. Grading operation plays a significant role in management and harvesting of cageculture. In this study, a counting and mass estimation of fish via vibration signal process method was proposed, using a roller-type fish grader to count and estimate the mass of fish during the grading process. First, we replicate fish dropping events during the grading process, when fish impact the mass measurement plate, on a test bench, and waveform data from vibration sensors located on the mass measurement plate were collected. Secondly, the waveform signal was analyzed, and trigger thresholds were set. When the signal exceeded the threshold, performed mathematical operations on the signal's data for counting and mass estimation until the signal left the threshold.The method was conducted on a test bench, and the results showed a coefficient of determination (R2) of 0.9970 and a Root Mean Square Error (RMSE) of 4.1724g for mass estimation. Furthermore, the method was validated on a roller-type fish grader in practical applications, achieving optimal R2 of 0.9862 and RMSE of 8.8529g. The accuracy of fish counting reached 100%. These experimental results demonstrate the proposed method can accurately count and estimate mass of fish. ? 2024, The Authors. All rights reserved.