Infrasound in wildfire

Background
 It has recently been found that large wildfires generate infrasonic waves that can be detected by infrasound observatories. Advances in measurement technology has made it possible for measuring devices that are both portables and inexpensive. 

Problem Statement
 Design a deployable self sustaining package that can continuously measure infrasonic wave data at 2kHz/s and transmit that data wirelessly. The package must be able to operate for 3 months without relying on existing power infrastructure. 

Deliverables & Specifications
 2-3 months of continuous power Battery powered with possible solar generation Wireless access to measured data within 6 hours Lora to cell tower or Zigby to cell tower Possible chain network to increase range from package to communication infrastructure. GPS time sync stored with data Prototype costs under $1000 <li>Portable package for one person to carry. <li>Error correction on transmitted data <li>Possible command signals from control cente </ul>

Goals
Currently as a group we have pinpointed our design constraints, what we want the system to do and what we believe will be an engineering solution for the project at hand. We have found that the major issue within our project will be power consumption, since we will not be relying on any major infrastructure to power our system we need to be able to run it for a couple of months. We have also found that for the communication we have to piggyback on the cell towers to connect to the internet. This will require setting up a 4G/LTE network for the system. We currently are researching what this will take to communicate. In the near future we are wanting to learn how to pull data from the sensor using only an RP-3B and write/send that data in a readable format. This will involve setting up a daisy chained network, using LoRaWAN or Zigbee, to send the data long distance. Our future goals is to set up and have testing of the communication network with the sensor data collection incorporated. We will continue to try to find solutions to the power issue and how we will power the entire design system. Future plans will look into green energy, DC-DC conversion, AC-DC conversion and restrictions of 4G/LTE network communication.

Reference




Next steps for measurement system
 <li>Connect the new ADC to the raspberry pi    <li>Save data from ADC to the SD card <li>Modify data logging timing scheme <li>Select a file save format and compression scheme <li>Determine the final file size </ul>

Next steps for point to point communication
 <li>Select a Point to Point communication module <li>Need to obtain file size <li>Priority on module selection <li>Sufficient rate of transfer for file size like Power consumption,range and price <li>Looking at Zigbee and Xbee family of modules <li>Set up the Point to Point module to communicate with the pi <li>Select controller for communication nodes <li>Communicate/transmit data between controllers </ul>

Next steps for 3G/4G communication
 <li>Select a 3G/4G module and network plan <li>Priority on module selection <li>Sufficient rate of transfer for file size <li>Communicate with 3G/4G module <li>Transfer Data via 3G/4G <li>Set up a server to receive data </ul>

Team Information
=Documentation Archive=
 * Agendas
 * Data Sheet
 * Meeting Minutes
 * Snap Shot