How to get system latitude longitute records every one hour?

Question

hi friends here iam tracking systems latitute and longitude every one hour. i created one exe and installed some systems

iam getting records every one hour if systems are open. some times system is sleeping mode also iam getting two records one hour so.my problem is how to get records every one hour i dnt want to save records when system is sleeping mode

 

here my code(working every one hr but sleeping mode iam getting two records so can u clarify this one)

 

 

if (e.Status == GeoPositionStatus.Ready)

{

// Display the latitude and longitude.

if (Watcher.Position.Location.IsUnknown)

{

//txtLat.Text = "Cannot find location data";

}

else

{

for (; ; )

{

FML fm = new FML();

GeoCoordinate location = Watcher.Position.Location;

var d = location.Latitude.ToString();

var ef = location.Longitude.ToString();

var name = Environment.MachineName;

fm.systemname = Environment.MachineName;

fm.latitude = d;

fm.longitude = ef;

fm.datetime = DateTime.Now;

db.FMLs.InsertOnSubmit(fm);

db.SubmitChanges();

Thread.Sleep(1000 * 60 * 60); // 60 Minutes

}

}

}