Owners who have used 4g gps tracker for car know that sometimes GPS will cause the actual position of the vehicle to be inconsistent with the position displayed on the GPS map for some reasons, and there is a certain deviation. Some are a hundred or two meters, some are even more. Sward, as a professional car GPS positioning brand, wants to tell you that: 4g gps tracker for car display position error, as long as not very large distance difference is normal. It's just, you know, what's the normal error?
1.Error margin of military and civilian 4g gps tracker for car
4g gps tracker for car is divided into military and civilian, military accuracy requirements are very high, so the maximum difference between this kind of locator is only one meter. When the 4g gps tracker for car is normal without interference, the error is within 10-20 meters, where the deviation is normal.
2.the main reasons affecting the accuracy of 4g gps tracker for car
But the locator belongs to electronic products, and the vehicle GPS is a long-term mobile outdoor work, so it will be affected by the driving environment such as weather, the number of GPS satellites and even the atmosphere, which will increase the position deviation on the electronic map.
In addition to weather, the accuracy of the 4g gps tracker for car will depend on the area, terrain, how it locates, and even the time of day. Like common underground garages, remote mountainous areas, GPS location accuracy will be worse than urban areas.
3.Details that affect the accuracy of 4g gps tracker for car
In addition, car owners often ignore two details: first, when the vehicle is parked in a position for a long time, this time refers to a week or more, when the vehicle is used again to produce movement, there will be a few minutes of short delay in updating the location information of the vehicle. This also explains some car owners on the Internet said that "when the car has been driven out for a distance, the positioning still does not move".
Second, when we use GPS to locate navigation, we will find that the map is marked with the distance between points, one point is the current position of the vehicle, the other point is the reference. The different choice of reference, distance and guidance will be different, which is why there will be a deviation with the owner's imagination of the end position of one of the reasons.
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