GPS Track Drift Problem
<p>[TOC]</p>
<h3>I. Problem Phenomenon</h3>
<h4>1、Drifting in stationary state</h4>
<p>The vehicle was at a standstill, the position drifted, and the track playback of the platform showed such phenomena as spinning and scratching.</p>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=43a77e0cc36c73a525f20d48f0926b22" alt="" /></p>
<h4>2、Drifting while driving</h4>
<p>The problem of the position drifting out of the actual running line occurs while the vehicle is in motion and returns to the normal route after a period of time.</p>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=333cda02139ba67755b235afa977c03b" alt="" /></p>
<h4>3、Drifting in the tunnel</h4>
<p>When the vehicle is driving into the tunnel, the normal state should be not positioned, but the problem of positioning and drifting to other positions actually occurs.</p>
<h3>II. Analysis Steps</h3>
<p>The following steps can be followed to troubleshoot the causes of the problem one by one.
1、Check the status of the GPS antenna.
2、Check whether the antenna is inserted wrongly.
3、Check whether the antenna is original and unaltered.
4、Check the environment of the drifting location.
5、Check the weather condition of the drifting time period.</p>
<h3>III. Operating Instruction</h3>
<h4>1、Check the status of the GPS antenna</h4>
<p>Refering to the [GPS Positioning poor/No Positioning](<a href="http://118.195.179.210:9000/web/#/11/315">http://118.195.179.210:9000/web/#/11/315</a> "GPS Positioning poor/No Positioning").</p>
<h4>2、Check whether the antenna is inserted wrongly</h4>
<p>The product that will not automatically detect the wrong antenna connection, confirm if it is plugged in wrong with other antennas, such as 4G, WIFI, etc.</p>
<h4>3、Check whether the antenna is original and unaltered</h4>
<p>GPS cannot be privately modified, otherwise it will affect the strength of the model.</p>
<h4>4、Check the environment of the drifting location</h4>
<p>The GPS positioning signal is weak and there is a greater probability of drifting when it is blocked by trees, in tunnels, near tall buildings and elevated areas, and in parking lots.</p>
<h4>5、Check the weather condition of the drifting time period</h4>
<p>Thunderstorm-type weather, blizzard weather, etc., there is a greater probability of drifting problems.</p>
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