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GPS Insight offers several services based on SMS queries. You can use these services from any standard cell phone with SMS service. Each of these is based on a message from your phone to our service (query) and a response from our servers to your phone (response).
*Standard text messaging charges may be applied by your cell service provider. GPS Insight does not charge an additional per-message fee.
To use SMS services you must complete a simple one time set up of your phone. If you have not done that, please see One-Time SMS Setup.
You can find vehicles that are closest to a specified vehicle.
Query
- Text “gps [vehicle name] close” to 477-477.
- Change [vehicle name] to the vehicle whose position you want to test for close vehicles.
- Within 5-30 seconds, a text message response will be sent to your phone.
Query Response
The response is a list of vehicles whose last reported position is close to the specified vehicle’s. The number of vehicles returned is limited to the ten closest.
Here is an example response for the request for “gps rob close”:
- “ALENA 17yds N stopped”
- “GRANT 409yds N 34mph W -41sec”
Understanding the Response:
There are up to four parts to each vehicle’s response.
- The vehicle name
- The vehicle’s location relative to the queried vehicle. In the example response: Alena is 17yds north of Rob, Grant is 409yds north of Rob.
- The vehicle’s current status. In the example response: Alena last reported as ‘stopped’, Grant last reported going 34mph west.
- The vehicle’s relative report timing. (moving vehicles only) Keep in mind that each vehicle is reporting every two minutes. This value is the number of seconds difference in the times at which the two vehicles last reported. A positive value means the queried vehicle reported before the response vehicle, negative means the response vehicle reported first. In the example response: Grant reported 41 seconds before Rob did so the 409yds difference and the speed of 34mph may have changed in the last 41 seconds. If Grant kept moving at 34mph west for those 41 seconds, for example, he may be more like 1300yds WNW of where Rob is.
