RFID Transponder Frequency Offset for Simultaneous Animal Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current animal identification and monitoring systems face challenges in reading multiple RFID transponders simultaneously, leading to costly and inefficient measurement of feed intake, behavioral analysis, and health monitoring in grazing environments, with limitations in accuracy and the need for human intervention.
Innovation Solution
A highly automated system using multiple transmitters to continuously monitor consumption, behavior, and growth of individual animals, estimating forage disappearance, greenhouse gas emissions, and health status, while adjusting dispensing of controlled substances to promote animal health and welfare, utilizing RFID transmitters, measurement units, and a microprocessor for data analysis and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple RFID transponders use the same frequency to transmit identification codes, then the system can identify multiple animals simultaneously, but a single reader/transmitter cannot readily decipher each individual identification code
Solution Approach 1:
The system segments the identification process by assigning each transponder a unique frequency offset from a base frequency. This frequency segmentation allows the reader to distinguish and decode multiple transponder signals simultaneously without interference, resolving the contradiction between simultaneous identification capability and reading accuracy.
2Measurement precision
If multiple reader/transmitters are used to read multiple transponders simultaneously, then individual identification codes can be deciphered, but the system becomes costly and the readable area is reduced
Solution Approach 1:
The system changes the frequency parameter of each transponder relative to a common base frequency. This parameter modification allows a single reader/transmitter to differentiate and read multiple transponders simultaneously by tuning to each unique frequency offset, eliminating the need for multiple readers and maintaining large readable area while preserving identification accuracy.
3Measurement precision
If first generation electronic feeders isolate animals to individual feeding gates or stalls, then feed intake measurement can be recorded, but the system becomes labor intensive and cost prohibitive
Solution Approach 1:
The system enables animals to self-identify through RFID transponders when they approach the feeding area. The reader automatically detects and records the animal's identification code and feed intake data without human intervention, eliminating manual recording while maintaining measurement precision. The animal simply needs to present its transponder for automatic identification.
4Extent of automation
If RFID is used to identify animals at feeding troughs, then automatic identification is achieved, but the position sensitivity and extended reading field create reading/calculation problems
Solution Approach 1:
The system introduces frequency offset as an intermediary parameter that links the animal's RFID transponder to its specific feeding location. Each transponder's unique frequency offset acts as a mediator that allows the reader to accurately associate the identified animal with the specific trough or feeding station, resolving the position sensitivity issue while maintaining automatic identification.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables precise, automated monitoring and management of individual animal performance, forage, and environmental conditions, reducing costs and human intervention, improving animal welfare and production efficiency while minimizing environmental impact.
Implementation Method 1
The reader/transmitter sends an electromagnetic wave through the antenna to the transponder, which uses this energy to transmit a radio frequency signal back through the antenna to the reader/transmitter
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
A highly automated system to identify, measure, manage and control individual animals in grazing environments to monitor, analyze, model, predict, promote, optimize, and mitigate a variety of conditions and interactions relating to the grazing environment and an animal's health, welfare, performance, productivity, efficiency, quality, economic and genetic value. The system having a transmitters that identify individual animals. A weighing device that weighs the animal while the animal consumes substances and a dispensing device that controls substance provision to individual animals. A computer considers a number of factors in generating control signals sent to the system to dispense a prescribed amount of mineral, vitamin, medicinal or supplement compound to an individual animal. The system models, predicts and estimates a number of conditions related to the animal and its grazing environment that improve animal welfare, increases production, and preserves and conserves resources.