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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 flow diagram outlining how the weighbridge operates.
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pone.0126292.g005: A flow diagram outlining how the weighbridge operates.

Mentions: The system has three modes of operation which are described in Fig 5. Data recorded when the system is in mode 2 comprise the readings from wgt1 and wgt2, RFID records and a time stamp. These are stored in a flash memory digital logger. For memory and power saving, we use sampling rate Δt = 0.0625s during modes 1 and 3, and Δt = 0.005s during mode 2.


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 flow diagram outlining how the weighbridge operates.
© Copyright Policy
Related In: Results  -  Collection

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

pone.0126292.g005: A flow diagram outlining how the weighbridge operates.
Mentions: The system has three modes of operation which are described in Fig 5. Data recorded when the system is in mode 2 comprise the readings from wgt1 and wgt2, RFID records and a time stamp. These are stored in a flash memory digital logger. For memory and power saving, we use sampling rate Δt = 0.0625s during modes 1 and 3, and Δt = 0.005s during mode 2.

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