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首页> 外文会议>IFIP(International Federation for Information Processing) TC 12 International Conference on Computer and Computing Technologies in Agriculture(CCTA 2007); 20070818-20; Wuyishan(CN) >NONDESTRUCTIVE TESTING SYSTEM FOR EGGSHELLS BASED ON DSP
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NONDESTRUCTIVE TESTING SYSTEM FOR EGGSHELLS BASED ON DSP

机译：基于DSP的鸡蛋无损检测系统。

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摘要

In order to check and eliminate the cracked eggs quickly and exactly in the process of egg products, a nondestructive testing system for eggshells based on digital signal processor (DSP) was established. The system utilized a TMS320VC33 DSP as a hardware platform, and has many functions such as controlling knock-equipment, sampling and processing the acoustics signals, judging the cracked-shell eggs, communicating with the host computer etc. In order to improve the detecting accuracy, 6 characteristic parameters were extracted in cepstrum domain besides the common used characteristic parameters in frequency domain as candidate distinguishing factors. Step discriminant was used to optimize the combination of these characteristic parameters, then established the optimum discriminant functions of normal eggshells and cracked eggshells respectively according to the step discriminant result. The accurate recognition ratio for cracked eggs is up to 95.5 percent, and the system can check 12 eggs per sec, which satisfied the requirements of the process of egg products.
机译：为了在蛋制品加工过程中快速，准确地检查和清除破裂的蛋，建立了基于数字信号处理器（DSP）的蛋壳无损检测系统。该系统采用TMS320VC33 DSP作为硬件平台，具有控制爆震设备，采样和处理声音信号，判断蛋壳破裂，与主机通信等许多功能。为了提高检测精度，在倒谱域中提取了6个特征参数，而频域中常用的特征参数作为候选区分因子。逐步判别用于优化这些特征参数的组合，然后根据逐步判别结果分别建立正常蛋壳和破裂蛋壳的最佳判别函数。裂解鸡蛋的准确识别率高达95.5％，系统每秒可检测12个鸡蛋，满足了鸡蛋制品加工的要求。

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