GPS

GPS Projects - by Yi Sun

I really love GPS technology, and it can do lots of cool job to make the life easier.

I spent some time to study the GPS knowledge, and did some research on it. I was thinking about what I can do with the GPS. I gave many tries, and I had few small projects shown below. I think GPS can do something that has relationship with location, time, etc. I will continue my study on GPS, and create more interesting and useful stuff.

GPS tagged photo locator	GPS + PHOTO + MAP	Driving Speed Analyse	GPSvideo. Real-time speed display

This is a GPS tagged photo locator project. The purpose of this project is to link your GPS tagged photos with google map. Please take a look at this project, and have fun with it.	The purpose of this project is to tag the photos on the Google Map or Google Earth. How it works: 1. I used my PDA which built in the GPS, and a third party GPS log program. I turned on my GPS, and let it log an entry every two seconds. Each entry ($GPGGA) contains the time, latitude, and longitude, etc. (for more information, check the NMEA specification online). 2. I took photos outside using my digital camera. The camera's time should be same with the GPS's. (try your best) 3. I wrote a Java program to combine the GPS log and the digital images. The images were updated with the GPS tag in the EXIF header (for more information, read the EXIF specification). A .KML file was generated as well. The algorithm to do it was very tricky. I tried and tested many times in order to get the best result (best matches). Here are two tries. The images are not very good, since I took it in the moving car (and at night). I just want to show you a basic idea.	I did a very interesting research on people's driving habit via analyzing their driving speed. I collected the driving speeds using GPS NMEA log. I think there are some advantages by doing this: Find out the shortest route from A to B. Find out the "cheapest" route (least gas consumption) from A to B. Find out the traffic condition at different time in a certain route. The speed statistics, (Max, Min, Mean). and more... I wrote a program to analyze the data in a GPS log, and output to a human readable report including a chart.	This project uses the GPS technology to Sync the GPS standard log with the video, and display the driving speed on the video in real time. I used the following things for this project: "mplayer" is used for video and audio editing. a java program is written by me to add the speed and location on the frames. the NMEA log file is generated from my GPS device. and the patience.