1 / 18

SENSE IT S tudent E nabled N etwork of S ensors for the E nvironment

SENSE IT S tudent E nabled N etwork of S ensors for the E nvironment using I nnovative T echnology. National Science Foundation Award #0833440. Snapshot v. Continuous Data. http://www.coolclassroom.org/cool_projects/lessons/miniunits/lesson1.html. The Sensor Revolution.

hugh
Download Presentation

SENSE IT S tudent E nabled N etwork of S ensors for the E nvironment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SENSE IT Student Enabled Network of Sensors for the Environment using Innovative Technology National Science Foundation Award #0833440

  2. Snapshot v. Continuous Data http://www.coolclassroom.org/cool_projects/lessons/miniunits/lesson1.html

  3. The Sensor Revolution In the 1980s, the personal computer revolution placed computing at the average citizen’s fingertips. In the 1990s, the internet revolution provided connections with an information web that spans the planet. This decade has ushered in the next revolution, one that is connecting the internet to the physical world; in effect, the sensor revolution is giving the world its first electronic nervous system. National Science Foundation, 2005 "Telegeography Maps" at http://www.telegeography.com/resources

  4. What is a sensor? Definition: A sensor is a device which detects or measures a physical quantity and converts the measurement into a signal which can be read by an observer or by another device.

  5. What are the components of a sensor? Sensor - sensors sense or measure physical data of the area to be monitored (e.g. temperature)Signal – the continual analog signal sensed by the sensors is digitized by an analog-to-digital converterController – further processes the signal

  6. Important Characteristics of a Sensor • Accuracy • Repeatability/Precision • Sensitivity • Range • Often choice of sensor is a tradeoff between several of • the above characteristics. For example, moderate accuracy • over a large range may be preferable to great accuracy over • a very small range.

  7. Why are sensors used? (discrete v. continuous data) • Discrete or “snapshot” sampling • Limited in amount and when collected • Still very valuable as many sensors are not fully developedand for comparing against sensor data for “groundtruthing” • Continuous sampling • Many sensors in development – better sensors coming • Can sample continuously, night, day, summer, winter, sunny, raining, windy • Can use data to make decisions in real time

  8. Rivers and Estuaries Observing Network (REON)

  9. The Sensor Revolution REON is just one example of a sensor network. With thousands of these networks connected together and “talking and sharing” data, a greater ability to understand and predict large systems like the Hudson River will emerge. The sensor revolution is underway and through the SENSE IT project, you will be joining in the revolution.

  10. SENSE IT Description of Activities • You will be challenged to: • Design • Assemble • Test • Deploy • Troubleshoot; and • Communicate with • Temperature, turbidity, and depth sensors.

  11. SENSE IT – Module 1 Designing and constructing sensors to test water quality parameters. Students will use various mechanisms of data gathering (e.g. voltmeters) to measure sensor output and will devise experiments to estimate the accuracy, repeatability and sensitivity of their devices.

  12. SENSE IT – Module 1 TemperatureThe first water quality parameter measured is temperature. Temperature is one of the most easily measured water quality parameters, but is also one of the most crucial factors in the workings of an aquatic ecosystem. As water temperature rises, biological, chemical and physical activity will occur.

  13. SENSE IT – Module 1 • TemperatureTemperature is not generally constant from the water surface • to the bottom. An aquatic ecosystems’ water temperature is • a function of: • Depth • Season • Mixing due to wind, storms and tides • Degree of stratification in the system • Temperature of water flowing from the tributaries • Human influences such as release of warm water • from power plants.

  14. SENSE IT – Module 1 • TemperatureWhy is it important to measure water temperature? Temperature • can influence several water quality parameters and affects • including: • Dissolved Oxygen (DO) • Phytoplankton blooms • Submerged Aquatic Vegetation (SAV) • Bacteria • pH • Thermal Pollution

  15. SENSE IT – Module 2 Integrate sensors with microprocessors (LEGO NXT), and write simple programs to enable gathering, analysis and transmission of sensed environmental data. Students will then deploy their sensor system and use it to make measurements of their local environment which they will then plot and analyze.

  16. SENSE IT Student Enabled Network of Sensors for the Environment using Innovative Technology (SENSE IT) SENSE IT will teach high school students how to design, build, test, deploy and interpret their own environmental sensors. SENSE IT will span three distinct residential regions in New York’s Hudson and St. Lawrence river valleys. SENSE IT will reach at least 60 teachers and approximately 3,000 high school students in New York.

  17. SENSE IT Your participation and feedback will help to improve the project for use with students all over the country.

  18. The Sensor Revolution • Expectations • By the end of the project, you will: • Design • Assemble • Test • Deploy • Troubleshoot; and • Communicate with • Temperature, turbidity, and depth sensors.

More Related