Real time measurement system based on wireless instrumented sphere

Roa, Yull Heilordt Henao; Fruett, Fabiano; Ferreira, Marcos D.

doi:10.1186/2193-1801-2-582

Cited by 6 publications

(5 citation statements)

References 12 publications

(16 reference statements)

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“…16,75 in a single data logging device, and these can be even presented in the form of instrumented spheres (IS) in the shape of a fruit. 109 An IS might be an ideal choice for impact studies such as capturing the shocks to fresh produce in a packaging or a sorting line. [110][111][112][113] At present, real-time monitoring of consignments in the supply chain involves remote acquisition of information on the proximity, temperature, humidity, and some gas concentrations during transit.…”

Section: Instrumented Spheres and Devices For Remote Quality Monitomentioning

confidence: 99%

“…However, piezoelectric accelerometers with miniature integrated designs are now becoming available and increasingly popular for portable applications when coupled with external‐portable battery packs. With the rapid development in accelerometer technology, miniature devices can be developed with all systems embedded in a single data logging device, and these can be even presented in the form of instrumented spheres (IS) in the shape of a fruit . An IS might be an ideal choice for impact studies such as capturing the shocks to fresh produce in a packaging or a sorting line …”

Section: Implications On Vibration Measurement and Simulationmentioning

confidence: 99%

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Measurement and evaluation of the effect of vibration on fruits in transit—Review

et al. 2018

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Mechanical vibration is a prominent cause of produce damage in many postharvest fruit supply chains. Knowledge on the causes, occurrence, and mechanistic relationship of vibration to produce damage is important for systematic development of remedial actions. This review identifies and discusses the critical factors of vibration, their implications for fruit quality, and possible improvements to addressing the issue of fruit quality deterioration. Frequently reported mechanical damage types caused by vibration on fruits are scuffing, fruit rub, and skin bruising. A wide range of factors can significantly affect the vibration intensity and thus resultant mechanical damage. Critical frequencies of vibration in the range of 0 to 10 Hz, attributed to peak energy levels in the power spectrum, cause substantial damage in fruits. Greater vertical acceleration and transmission of vibration to the higher tiers in a stacked column of packages result in increased mechanical damage. Fruit packages stacked in the rear positions of trucks are also affected more by vibration. Produce transported in leaf spring trucks has a higher risk of damage when compared with air-ride suspension trucks. Additionally increased road roughness, vehicle speed, and duration of exposure to vibration proliferate fruit damage. The effects of different inner packing methods and different package types on mechanical damage are less frequently investigated. More accurate characterization of mechanical damage caused by vibration and shocks and its reproduction by enhanced simulation methods will contribute to optimizing damage prevention mechanisms and further improving the quality of fruits in transit within the postharvest supply chain.

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Section: Instrumented Spheres and Devices For Remote Quality Monitomentioning

confidence: 99%

Section: Implications On Vibration Measurement and Simulationmentioning

confidence: 99%

Measurement and evaluation of the effect of vibration on fruits in transit—Review

et al. 2018

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“…Recently, Roa et al developed a wireless instrumented sphere (WIS) that can measure and display impacts in real time through a radio frequency transmitter [ 7 ]. Geyer et al developed a miniaturized tri-axial acceleration measuring unit (AMU) that can be embedded into a potato tube, and the AMU recorded average impact loads 1.11-times higher than what were recorded by PMS-60 [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Development of the Second Generation Berry Impact Recording Device (BIRD II)

2015

Sensors

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To quantitatively measure the impacts during blueberry harvesting and post-harvest handling, this study designed the second generation Berry Impact Recording Device (BIRD II) sensor with a size of 21 mm in diameter and a weight of 3.9 g, which reduced the size by 17% and the weight by 50% compared to the previous prototype. The sensor was able to measure accelerations up to 346 g at a maximum frequency of 2 KHz. Universal Serial Bus (USB) was used to directly connect the sensor with the computer, removing the interface box used previously. LabVIEW-based PC software was designed to configure the sensor, download and process the data. The sensor was calibrated using a centrifuge. The accuracy of the sensor was between −1.76 g to 2.17 g, and the precision was between 0.21 g to 0.81 g. Dynamic drop tests showed that BIRD II had smaller variance in measurements than BIRD I. In terms of size and weight, BIRD II is more similar to an average blueberry fruit than BIRD I, which leads to more accurate measurements of the impacts for blueberries.

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“…A berry impact recording device (BIRD) of 25.4 mm diameter spherical shape was developed for measuring the mechanical impacts of small fruits like blueberries (Yu et al, 2011a(Yu et al, , 2011bXu et al, 2015). The wireless impact sphere, or WIS, is another device that is able to acquire, process, and visualize three-axis accelerations, allowing identification and measurement of rotations, vibrations, and impacts in real time (Roa et al, 2013(Roa et al, , 2015.…”

mentioning

confidence: 99%

Design Features and Bruise Evaluation of an Apple Harvest and In-Field Presorting Machine

Pothula¹,

Zhang²,

Lu³

2018

Transactions of the ASABE

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Abstract. In-field presorting of apples, in combination with the harvest aid function, would have advantages of cost savings in postharvest handling and storage, reduced postharvest pest and disease problems, and better inventory management, while also enhancing harvest productivity. A new apple harvest and in-field presorting prototype was developed to help apple growers achieve these potential benefits. The prototype sorts and grades fruit based on color and size, using a machine vision-based sorting system with an innovative fruit singulating and rotating design (SRD), and it handles the graded fruit in the bins using newly designed automatic bin fillers. Bruise damage by impact is a critical factor in the development of the apple harvest and in-field presorting prototype. This article reports on the major design features of the prototype and experimental evaluation of the prototype for potential bruise damage. Experiments were conducted on ‘Gala’ and ‘Fuji’ apples to evaluate bruise damage potential under both empty and partially filled bin conditions. An impact recording device (IRD) was used to measure the impact magnitude in terms of peak acceleration (G) at all critical points of the machine, including harvest conveyors, main conveyor, flat conveyor, SRD, cup conveyor, bin filler, and bins. It was found that bruise damage mainly occurred during bin filling. The number of impacts recorded for the partially filled bin was reduced by 60%, compared to that for the empty bin, indicating that the impact between apples and the wooden bin’s floor was a major cause of bruising. The maximum G value for the partially filled bin was measured at 34.5, while the measured G values were less than 20 from start to the point just before the bin filler, indicating no bruise damage. Bruise evaluation showed that no more than 9% of the test apples would be downgraded from ‘Extra Fancy’ grade for the partially filled bin condition. Higher G values for the empty bin condition suggested the need for further improvement to the discharge of apples from the bin filler to the bin to further reduce bruise damage. Keywords: Apples, Bruising, Fruit, Grading, Harvesting, Sorting, Machine vision.

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Real time measurement system based on wireless instrumented sphere

Cited by 6 publications

References 12 publications

Measurement and evaluation of the effect of vibration on fruits in transit—Review

Measurement and evaluation of the effect of vibration on fruits in transit—Review

Development of the Second Generation Berry Impact Recording Device (BIRD II)

Design Features and Bruise Evaluation of an Apple Harvest and In-Field Presorting Machine

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