Chinese Journal on Internet of Things ›› 2023, Vol. 7 ›› Issue (2): 143-152.doi: 10.11959/j.issn.2096-3750.2023.00332

• Theory and Technology • Previous Articles    

Wi-freshness: research on CSI-based pork freshness detecting system

Chao NIU1,2,3, Weidong YANG1,2,3, Pengming HU2,3, Xiangshang GAO1,2,3, Erbo SHEN2,3   

  1. 1 College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
    2 Henan Province Key Laboratory of Grain Photoelectric Detection and Control(Henan University of Technology), Zhengzhou 450001, China
    3 Key Laboratory of Grain Information Processing and Control(Henan University of Technology), Ministry of Education, Zhengzhou 450001, China
  • Revised:2023-03-10 Online:2023-06-30 Published:2023-06-01
  • Supported by:
    The National Natural Science Foundation of China(62172141);The National Natural Science Foundation of China(61772173);The Natural Science Foundation of Henan Province(222300420004);The Major Public Welfare Project of Henan Province(201300210100);The Scientific Research Program for Overseas Students of Henan Province(2124003)

Abstract:

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.

Key words: channel state information, Wi-Fi, pork freshness detection, broad learning system

CLC Number: 

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