source:truck tracking webfleet solutions release time:2022-11-26 Hits: Popular:realtime gps tracker online
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????1. The area to be entered should be fully investigated in advance. Now, the network is so developed that the existing electronic vector maps and satellite photos can be used to study the target area. The former recommends Electronic Map of China (I have seen the most accurate vector map of the country!), The latter is of course Google Earth. Again, it's good to see the world as God from the sky. What do we research on the map? The first is to mark the coordinates of POI (Points of Interest) around the target area, such as the nearest residential area, gas station, township, village and even the turning point and intersection of the highway around a desert or forest and other uninhabited areas. The second is to browse the target area through the satellite map and look for signs with significant characteristics. For example, a hill in the desert, a small lake in the Gobi or an open space in the forest. All these, of course, are the more the better, the more evenly distributed the better. Because once there is a problem, you can choose the nearest point.
????2. Data preparation. All these POIs should be marked on screen shots of different scales, printed out (preferably satellite photos and vector maps), and bound into volumes. At the same time, an index page should be established to list the names and descriptions of all POIs. The next thing to do is to input these POIs into GPS according to the defined names and save them as waypoints. I suggest that the names of waypoints should not start with numbers to avoid confusion with temporary waypoints.
????3. Power supply preparation. All electronic equipment needs electric energy. If you don't have solar panel charger or hand generator and other power generation equipment, you'd better prepare several AA or AAA batteries in advance, which is also the most economical way. This is why I always recommend selecting GPS receivers with AA or AAA batteries. Because this kind of battery can be bought in any small place and any small shop. Even if you enter a no man's land, if you use each pair of batteries for 10-14 hours continuously, you will eat all the food with 20 batteries
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