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Increasing Accuracy: A New Design and Algorithm for Automatically Measuring Weights, Travel Direction and Radio Frequency Identification (RFID) of Penguins.

Afanasyev V, Buldyrev SV, Dunn MJ, Robst J, Preston M, Bremner SF, Briggs DR, Brown R, Adlard S, Peat HJ - PLoS ONE (2015)

Bottom Line: Reliable discrimination between single and multiple penguin crossings is demonstrated.Users are able to define required levels of accuracy by adjusting filters and raw data are automatically recorded and stored allowing for a range of processing options.This paper presents the underlying principles, design specification and system description, provides evidence of the weighbridge's accurate performance and demonstrates how its design is a significant improvement on existing systems.

View Article: PubMed Central - PubMed

Affiliation: British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB30ET, United Kingdom.

ABSTRACT
A fully automated weighbridge using a new algorithm and mechanics integrated with a Radio Frequency Identification System is described. It is currently in use collecting data on Macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia. The technology allows researchers to collect very large, highly accurate datasets of both penguin weight and direction of their travel into or out of a breeding colony, providing important contributory information to help understand penguin breeding success, reproductive output and availability of prey. Reliable discrimination between single and multiple penguin crossings is demonstrated. Passive radio frequency tags implanted into penguins allow researchers to match weight and trip direction to individual birds. Low unit and operation costs, low maintenance needs, simple operator requirements and accurate time stamping of every record are all important features of this type of weighbridge, as is its proven ability to operate 24 hours a day throughout a breeding season, regardless of temperature or weather conditions. Users are able to define required levels of accuracy by adjusting filters and raw data are automatically recorded and stored allowing for a range of processing options. This paper presents the underlying principles, design specification and system description, provides evidence of the weighbridge's accurate performance and demonstrates how its design is a significant improvement on existing systems.

No MeSH data available.


Related in: MedlinePlus

A histogram of penguin weights calculated from weighbridge crossing data for 2011–2012.A summary of the data from the 2011–2012 breeding season is shown. The weighbridge recorded 71429 files. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings.
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pone.0126292.g010: A histogram of penguin weights calculated from weighbridge crossing data for 2011–2012.A summary of the data from the 2011–2012 breeding season is shown. The weighbridge recorded 71429 files. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings.

Mentions: A full analysis of the data from the weighbridge is currently in progress and will be reported in subsequent publications. A summary of the data from the 2011–2012 breeding season is shown in Fig 10 as a histogram of all the outward and inward crossings. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings. In total 813 different penguin RFID tags were recorded, ranging from 1 recorded crossing up to a maximum of 146 crossings with a mean of 47 crossings recorded per tagged penguin. Penguin tags are not always picked up by the RFID receiver—the likelihood of it being recorded may depend on the height and orientation of the implant as well as the number of birds on the weighbridge.


Increasing Accuracy: A New Design and Algorithm for Automatically Measuring Weights, Travel Direction and Radio Frequency Identification (RFID) of Penguins.

Afanasyev V, Buldyrev SV, Dunn MJ, Robst J, Preston M, Bremner SF, Briggs DR, Brown R, Adlard S, Peat HJ - PLoS ONE (2015)

A histogram of penguin weights calculated from weighbridge crossing data for 2011–2012.A summary of the data from the 2011–2012 breeding season is shown. The weighbridge recorded 71429 files. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4404094&req=5

pone.0126292.g010: A histogram of penguin weights calculated from weighbridge crossing data for 2011–2012.A summary of the data from the 2011–2012 breeding season is shown. The weighbridge recorded 71429 files. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings.
Mentions: A full analysis of the data from the weighbridge is currently in progress and will be reported in subsequent publications. A summary of the data from the 2011–2012 breeding season is shown in Fig 10 as a histogram of all the outward and inward crossings. Data are shown for 31997 crossings in total with the penguin weight calculated from at least 1.5 s on the bridge—11141 outward crossings and 20856 inward crossings. In total 813 different penguin RFID tags were recorded, ranging from 1 recorded crossing up to a maximum of 146 crossings with a mean of 47 crossings recorded per tagged penguin. Penguin tags are not always picked up by the RFID receiver—the likelihood of it being recorded may depend on the height and orientation of the implant as well as the number of birds on the weighbridge.

Bottom Line: Reliable discrimination between single and multiple penguin crossings is demonstrated.Users are able to define required levels of accuracy by adjusting filters and raw data are automatically recorded and stored allowing for a range of processing options.This paper presents the underlying principles, design specification and system description, provides evidence of the weighbridge's accurate performance and demonstrates how its design is a significant improvement on existing systems.

View Article: PubMed Central - PubMed

Affiliation: British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB30ET, United Kingdom.

ABSTRACT
A fully automated weighbridge using a new algorithm and mechanics integrated with a Radio Frequency Identification System is described. It is currently in use collecting data on Macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia. The technology allows researchers to collect very large, highly accurate datasets of both penguin weight and direction of their travel into or out of a breeding colony, providing important contributory information to help understand penguin breeding success, reproductive output and availability of prey. Reliable discrimination between single and multiple penguin crossings is demonstrated. Passive radio frequency tags implanted into penguins allow researchers to match weight and trip direction to individual birds. Low unit and operation costs, low maintenance needs, simple operator requirements and accurate time stamping of every record are all important features of this type of weighbridge, as is its proven ability to operate 24 hours a day throughout a breeding season, regardless of temperature or weather conditions. Users are able to define required levels of accuracy by adjusting filters and raw data are automatically recorded and stored allowing for a range of processing options. This paper presents the underlying principles, design specification and system description, provides evidence of the weighbridge's accurate performance and demonstrates how its design is a significant improvement on existing systems.

No MeSH data available.


Related in: MedlinePlus