Related Experiment Video
Updated: Mar 5, 2026
08:27
A New Hybrid Quantitative Evaluation Model for Axillary Junctional Hemorrhage in Swine
Published on: December 6, 2024
712
Minimized Bolus-Type Wireless Sensor Node with a Built-In Three-Axis Acceleration Meter for Monitoring a Cow's Rumen
Hirofumi Nogami1,2, Shozo Arai3, Hironao Okada4
1Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan. nogami.hirofumi.406@m.kyushu-u.ac.jp.
Sensors (Basel, Switzerland)
|March 28, 2017
Summary
New wireless sensors using accelerometers can monitor cow rumen health for over 600 days, detecting conditions like sub-acute ruminal acidosis (SARA) and preventing potential death.
Area of Science:
- Veterinary Medicine
- Animal Health Monitoring
- Biosensor Technology
Background:
- Rumen dysfunction in cows can be fatal, with sub-acute ruminal acidosis (SARA) leading to serious conditions like rumen atony and abomasal displacement.
- Current wireless pH sensors for rumen monitoring have limited lifespans due to reference electrode issues.
- Accurate monitoring of rumen conditions is crucial for preventing severe health issues and mortality in cattle.
Purpose of the Study:
- To develop and evaluate a novel wireless sensor node utilizing three-axis accelerometers for monitoring rumen conditions in cows.
- To overcome the lifespan limitations of existing pH-based wireless sensor nodes.
- To assess the potential of accelerometer data in detecting rumen atony and other motility disorders.
Main Methods:
- Development of wireless sensor nodes with three-axis accelerometers, measuring 30.0 mm in diameter and 70.0 mm in length.
- Estimation of sensor node lifespan based on data transmission frequency and battery size, projecting over 600 days.
- Comparison of rumen motility data obtained from accelerometer sensors with force transducer measurements.
Main Results:
- The proposed accelerometer-based wireless sensor nodes demonstrated a theoretical lifespan exceeding 600 days.
- Analysis of accelerometer data successfully identified discriminative movement patterns indicative of rumen atony.
- The study established a correlation between accelerometer data and force transducer measurements for evaluating rumen motility.
Conclusions:
- Wireless sensor nodes with three-axis accelerometers offer a promising, long-lasting solution for monitoring cow rumen health.
- This technology can effectively detect rumen atony, a critical indicator of dysfunctional rumen conditions.
- Accelerometers provide a viable alternative to traditional pH sensors for continuous, extended monitoring of bovine rumen motility.
More Related Videos
11:02The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
Published on: September 7, 2015
23.2K
09:35Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
4.9K
Related Concept Videos
01:12Measuring Acceleration Due to Gravity
1.4K
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
1.4K
01:02Gyroscope
4.3K
A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
4.3K
01:22Relative Motion Analysis using Rotating Axes - Acceleration
909
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
Time differentiation is...
909
02:35Key Elements for Plant Nutrition
24.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.7K
01:10Relative Motion Analysis - Acceleration
979
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
979
01:24Gyroscope: Precession
5.7K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
5.7K