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1. 河南工业大学信息科学与工程学院,河南 郑州 450001
2. 河南省粮食光电探测与控制重点实验室(河南工业大学),河南 郑州 450001
3. 粮食信息处理与控制教育部重点实验室(河南工业大学),河南 郑州 450001
Online First:2023-06,
Published:30 June 2023
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Chao NIU, Weidong YANG, Pengming HU, et al. Wi-freshness: research on CSI-based pork freshness detecting system[J]. Chinese Journal on Internet of Things, 2023, 7(2): 143-152.
Chao NIU, Weidong YANG, Pengming HU, et al. Wi-freshness: research on CSI-based pork freshness detecting system[J]. Chinese Journal on Internet of Things, 2023, 7(2): 143-152. DOI: 10.11959/j.issn.2096-3750.2023.00332.
有效、快速地评价猪肉新鲜度对猪肉品质监测具有重要意义。然而,传统的感官评价方法过于主观,理化分析又耗时过长且具有破坏性。虽然射频信号被用于定位、材料识别、生命体征监测,但在肉类新鲜度检测方面并未受到重视。提出了一种实时、无损、低成本的基于信道状态信息(CSI
channel state information)的猪肉新鲜度检测系统Wi-freshness。该系统基于泛在网络(商用Wi-Fi)部署和实施,是物联网在生鲜农产品领域一个新的应用。Wi-freshness包括CSI数据感知、数据预处理、检测建模和新鲜度检测4个模块。考虑Wi-freshness需要处理的数据特征值不多,以及对预测的实时性要求较高的特点,提出一种基于宽度学习系统(BLS
broad learning system)的检测模型。实验结果表明,Wi-freshness系统能达到93%以上的检测准确率。
Effective and rapid detection of pork freshness is important for pork quality.However
traditional sensory evaluation methods are too subjective
physical and chemical analysis methods are time-consuming and destructive.Recently
radio frequency is widely used in the field of location
material identification and human body monitoring
while
the meat freshness detection is ignored.A real-time
non-destructive and low-cost system for pork freshness detecting based on channel state information (CSI) was proposed.It is a new application of internet of things in the field of fresh agricultural products based on ubiquitous network (commercial Wi-Fi).The proposed Wi-freshness consists of four modules: CSI data sensing
data pre-processing
detection modelling and freshness detection.Considering the need for Wi-freshness data characteristic value processing is not much
and high demand for real-time prediction characteristics
a detection model based broad learning system (BLS) was proposed.Experiment shows that Wi-freshness system can achieve more than 93% detection accuracy.
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