GPS start-up is divided into cold start, warm start and hot start. Cold start generally occurs in the following situations:
1, watch GPS function when the first use;
2, watch battery exhaustion shut down caused by the loss of satellite calendar information;
3, watch shutdown state displacement of more than 200 kilometers
Solution: When GPS positioning is slow, you can turn the AP back on and reconnect your watch to sync data, which will also greatly improve gps positioning speed.
Because in a cold start state, the watch GPS positioning system needs to download satellite calendar information, therefore, when positioning will be much larger than the temperature start and heat start conditions. Taking into account the way the watch is worn and the impact of the arm on the GPS antenna, it is recommended that the user choose an open space during cold start-up (including first positioning), keep the dial pointing to the sky under normal watch wear, and complete the download of the star calendar and GPS cold start-up positioning in 60 to 90 seconds, depending on the weather and surrounding environment.
If the watch has not shifted significantly since the last positioning and is less than 2 hours apart from the last positioning, the watch GPS can achieve a hot start. In open spaces, the watch is worn normally and the dial can be positioned in about 5 seconds when the dial points to the sky. The specific time is related to the weather and surrounding environment.