Companies like LiveViewGPS, Valencia, CA, sell GPS vehicle tracker systems
to, well, track personal cars and fleet vehicles. However, people are
inventive, and it's not surprising to discover them using GPS tracking
systems in creative and unusual ways.
GPS riding art
Michael "Wally" Wallace is a middle school science teacher. His hobby is
using GPS vehicle tracking to transform maps of the city into art. The city
streets of Baltimore is his canvas, his mountain bike and GPS technology are
his brushes, and Google Maps is his template.
Think of his art as a giant Etch-A-Sketch as Wally bicycles up and down
streets "drawing" objects such as a boot, a gun and a hammer. Lately he's
evolved into more complex "drawings" such as the Jellyfish Invasion and Tee
His art can only be seen from a bird's-eye view, of course, but fortunately
that's no problem with a GPS system. Wally's vehicle tracker continuously
sends location data to a satellite, which relays it to a GPS server that
stores and records the data. The route data is then superimposed on Google
Maps to reveal his "drawing."
Wally's art has been featured in various media around the world. You can see
a showcase of his work by visiting his online gallery at WallGPX.com.
Who knows? It may lead you to digitally sketching your own masterpieces.
Like finding a GPS in a haystack
Each month the county Sheriff's Department in Tillman County, Oklahoma was
receiving calls from farmers complaining their hay bales were stolen.
Stealing hay is no minor problem in the county. Extreme drought has forced
farmers to use more hay than normal, driving up prices and making hay very
attractive to thieves. Another plus for thieves: hay is impossible to trace.
Well, almost impossible.
When one farmer complained that more than 30 bales of his hay were stolen,
Sheriff Whittington swung into action. He planted a portable GPS vehicle
tracker in one of the farmer's bales and waited for the thieves to strike
again. They did.
Using a satellite tracking system, the sheriff was able to follow a dot
representing the thieves' truck on his smartphone. When he pulled the
thieves over, they naturally claimed the hay was theirs; they were on their
way to feed their cattle. When the sheriff showed them the GPS hidden in a
bale, they asked if they could simply return the hay and forget the whole
They went to jail.
Since then hay thefts have dropped dramatically in Tillman County, Oklahoma.
Solving a mystery of the seas
Manta rays are facing extinction. These graceful 25-foot fish are one of the
ocean's largest and least-known species. Almost nothing is known about their
movements, their habits or their ecological needs. Answers to these
questions are urgently needed because manta rays are now listed as
"vulnerable" by the International Union for the Conservation of Nature.
Manta rays have the highest brain-to-body ratio of all rays and sharks. And
because they don't have dangerous stingers like stingrays, they're harmless
Unfortunately, humans aren't harmless to manta rays. They chop the rays for
shark chum, use them for traditional Chinese medicine and run over them with
ships. If marine biologists hoped to improve the long-term survival of manta
rays, they desperately needed more data.
Initial data came via GPS trackers, which scientists placed on six manta
rays and monitored them for 64 days before the units fell off. Results of
the tracking program were published in a study by scientists from the
Wildlife Conservation Society, the Mexican government and the University of
Exeter. Among their findings they discovered manta rays:
-- Traveled almost 700 miles during the two months they were tracked.
-- Preferred warm water less than 50 meters deep.
-- Swam most of their time in coastal waters with plentiful zooplankton and
-- Spent 90% of their time swimming in major shipping routes, leaving them
vulnerable to being hit by ships.
This is only a beginning. There's still a lot to learn about these gentle
giants. It's hoped satellite tracking technology will be one of the key
components for understanding manta ray movements and the dangers that
threaten their existence.