1. http://weather.union.edu Goals Structure Sensors Communication Server
Senior Project – Computer Engineering – 2008 Union College Weather Station Gregory Mahlum Advisor – Dean Traver
Structure
• Location: Roof of North Wing Science & Engineering building
Goals
• Design and implement a weather station for the Union College community
• Display current and archived measurement data on a webpage
Sensors
Temperature Relative humidity
Barometric pressure Precipitation
Ultra-violet Wind speed
Wind direction
Calculated wind chill, dew point, and heat index based on the above sensor measurements
Communication
• Serial Communication via Ethernet using a Moxa serial device server
• Communication occurs continuously. Data arrives every 9-10 sec.
• New data is retrieved as quickly as it takes the microcontroller to read the sensors and communicate with the server.
Server
• Collection Script runs communication program
• Compression Script calculates averages, highs, lows, and totals
• Database contains two tables, a past hour table for collection script data and an archived data table for compression script data
• Web server uses data in the database to generate web pages
Server Activity Diagram