Multi-section track type online detection device and method for cracks on eggs on basis of vibrational acoustic characteristics

Abstract

The invention discloses a multi-section track type online detection device and method for cracks on eggs on the basis of vibrational acoustic characteristics. The multi-section track type online detection device is characterized in that a plurality of crack detecting track pairs are uniformly distributed at interval to form a track; two sides just above the track are provided with ring-shaped single-edge bending plate chains, and a pushing component is arranged between the ring-shaped single-edge bending plate chains; an incremental rotary encoder on a driving shaft and opposite-type photoelectric switches at the two sides of a crack detecting track assembly are connected with a DSP (Digital Signal Processor) module; each crack detecting track pair is connected with the DSP module by a signal conditioning circuit; the pushing component pushes the eggs to roll along the track, the eggs roll and collide with a groove of the track to make a sound, a microphone converts the sound into an electric signal which is then filtered, amplified and after-processed by analog-digital conversion, and comprehensive judgment is carried out on the cracks by time-frequency domain analysis. The multi-section track type online detection device and method disclosed by the invention have the advantages that fast online recognition of the cracks is realized by a mode that the eggs roll for multiple sections actively and continuously to generate acoustic signals, and a new mode with simple mechanism, convenience in control and high recognition rate is provided for online crack detection of the eggs.

Description

technical field [0001] The invention relates to the field of on-line non-destructive detection for poultry eggs, in particular to a multi-segment track-type poultry egg crack on-line detection device and method with vibro-acoustic characteristics. Background technique [0002] The crack detection of poultry eggs is an important process of poultry egg quality grading. The existence of cracks in poultry eggs will reduce the strength of the eggshell and be easily damaged, which is not conducive to the collection, transportation, packaging and storage of poultry eggs. In addition, pathogenic bacteria can enter the egg body more easily through cracks, shorten the storage period of poultry eggs, and even infect the eater. Therefore, in the modern poultry egg detection and grading system, cracks are an important indicator, and it is necessary to identify and eliminate cracked eggs before they enter the market through appropriate detection methods. [0003] At present, in practica...

AI Technical Summary

Problems solved by technology

This means that a new knowledge base needs to be built before testing different varieties and different batches of eggs, resulting in frequent calibration of the equipment, causing inconvenience in operation, and reducing the versatility of the equipment

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