Wednesday, February 22, 2017

Follow me feature wobbly on Yuneec Typhoon Q500 4K drone as GPS flickers

Yuneec Typhoon Q500

Yuneec Typhoon Q500 4K drone shows wobbly response if satellite numbers drop.

More than a few drone pilots have noted the wobbles in the “Follow Me” mode as the Yuneec GPS struggles to stay connected to enough satellites. The issue centers on all Yuneec drone models, but has particularly frustrated first-time drone buyers unware of the complexities.

First off, the insert in the Yuneec Typhoon Q500 4K drone box that explains how “Follow Me” is supposed to work needs more attention to detail. But the most important aspect to note is that the Q500 must be connected to at least seven satellites. This can be a problem for any Yuneec drone, especially in some parts of the world where access to the satellite network it relies on is patchy, or non-existent.

At this point, the first-time user needs to know the difference between a fix and a lock. So for example, in a lock, it means I have a solid signal from three or more satellites, while a fix means the location is established. So a drone pilot could have a lock on 10 satellites, but the Yuneec GPS receiver board may not have a fixed location.

For the Yuneec drone models, that could mean that a flashing green light doesn’t equal a good position estimate, just a good Yuneec GPS lock. Understanding this difference is crucial in “Follow Me” as you have to position a Q500 at the height and angle at which you want it and switch from Angle Mode to Smart Mode.

The Yuneec GPS is used in all of the flight modes for the Q500, but you can manually turn off the Yuneec GPS by finding an online guide. But remember, the drone defaults to “on” for the Yuneec GPS, so you will need to repeat the process each time if you want the Yuneec GPS off.

But setting the drone into Smart Mode for “Follow Me” produces a series of imprecise stop and start moves, making it impractical unless you’re in a wide open space with no other people or objects around.

On the other hand, in a Yuneec vs DJI comparison on the number of satellites available across the world, DJI has a far wider network and the GPS and GLONASS uses sonar assistance.

And that brings up whether the Yuneec Typhoon Q500 4K drone is meant to compete with the DJI Phantom, as the advertised Q500 parallels to a Phantom are obvious. It’s true the Q500 is a bulkier drone, but it does attempt to employ features such as a landing gear and the custom camera/gimbal combination found on the DJI drone.

The Yuneec drone however lags in R&D and quality in the propellers. The plastic and other features are a bit flimsy. Those design flaws coupled with the prospect of the Yuneec GPS dropping mean it’s not a good idea to attempt to fly it indoors as it lacks the more sophisticated autonomous communication features of the Phantom.

That brings us back to the Yuneec GPS green light on the Yuneec Typhoon Q500 4K drone – it produces mixed results.

Sometimes the green light for the Yuneec GPS leads to the drone working perfectly, or it shows satellites in place and the drone does not respond at all. This leads to furious efforts to recalibrate the compass, or investigate other potential problems such as those with the internal WiFi card, which has had problems with a poorly soldered antenna. So a warning of Yuneec GPS loss on the ST10 controller could be caused by several issues.

The post Follow me feature wobbly on Yuneec Typhoon Q500 4K drone as GPS flickers appeared first on Drone Inner.

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