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en:help:v2:tracker [2018/12/24 18:18] – alpinequest | en:help:v2:tracker [2020/05/01 14:32] – [How to correctly setup your device for background track recording?] alpinequest | ||
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In recent Android versions, multiple optimization tools have been added in order to reduce battery usage, especially targeting background applications. For example, the " | In recent Android versions, multiple optimization tools have been added in order to reduce battery usage, especially targeting background applications. For example, the " | ||
- | {{: | + | {{: |
+ | |||
+ | __Example on Samsung devices__: | ||
+ | * In your devices settings, tap " | ||
+ | * Tap the top/right menu icon {{: | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | * Tap " | ||
+ | * Tap on the " | ||
+ | * Locate and un-check " | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | \\ | ||
__Example on Huawei devices__: | __Example on Huawei devices__: | ||
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{{ : | {{ : | ||
- | An alternative how-to | + | Additional information can be found here: [[https://sleep.urbandroid.org/documentation/faq/alarms-sleep-tracking-dont-work/|sleep.urbandroid.org]]. |
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+ | {{: | ||
\\ | \\ | ||
===== Problems with the track recorder ===== | ===== Problems with the track recorder ===== | ||
- | \\ | + | {{ : |
- | **Track not correctly recorded when the screen is turned off**\\ | + | |
- | On top of the Android battery optimization tools, some brands also include their own tools that may disable the use of GPS or network for background applications, | + | ==== Track not correctly recorded when the screen is turned off ==== |
+ | |||
+ | On top of the Android battery optimization tools, some brands also include their own tools that may disable the use of GPS or network for background applications, | ||
+ | |||
+ | For example, you can check that the application is allowed to access to your GPS location even when the device is not used (screen off) as you can see on the right. | ||
+ | |||
+ | Here are some other examples: | ||
__For Huawei devices__: | __For Huawei devices__: | ||
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* Un-check " | * Un-check " | ||
- | {{ : | + | {{ : |
__For Xiaomi/Vivo devices__: ([[https:// | __For Xiaomi/Vivo devices__: ([[https:// | ||
- | > → //Settings > App Settings > Permissions > Autostart// | + | * In your devices settings, tap " |
- | > → //Settings > App Settings > Permissions > Other permissions > Permissions > Start in background// | + | * In the battery saver category, tap " |
- | > → //Settings > Battery > Manage apps battery usage > No restrictions// | + | * Locate and tap " |
+ | * Tap " | ||
+ | * Tap the top application name {{: | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | __For HTC devices__: | ||
+ | [[https://www.htc.com/us/support/ | ||
__For some other devices__: | __For some other devices__: | ||
> → //Settings > Battery > Battery Optimization// | > → //Settings > Battery > Battery Optimization// | ||
+ | > → //Settings > Battery > Manage apps battery usage > No restrictions// | ||
For some devices (like Huawei Mate 10), a system update can also fix this problem. | For some devices (like Huawei Mate 10), a system update can also fix this problem. | ||
- | **The track recorder service stops**\\ | + | ==== The track recorder service stops ==== |
In addition of being closed by the system as seen before, some " | In addition of being closed by the system as seen before, some " | ||
- | **Loss of the GPS signal**\\ | + | ==== Loss of the GPS signal |
A common issue when recording a track is the loss of the GPS signal, leading to a missing part in the recorded track (seen as a straight line longer than usual). It usually happens because the device doesn' | A common issue when recording a track is the loss of the GPS signal, leading to a missing part in the recorded track (seen as a straight line longer than usual). It usually happens because the device doesn' | ||
- | **Device gets hot**\\ | + | ==== Recorded track doesn' |
+ | |||
+ | Some devices perform better than others when using the GPS, depending on the quality of the hardware used and the internal conception (placement of the GPS chip inside the device). Some devices require a stronger GPS signal to give an acceptable accuracy. For example, here is the same track recorded at the same time by two different devices (one in the left pocket, one in the right) during a small outside walk with occasional stays inside buildings. We can see that the Samsung Galaxy S9 {{: | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | ==== Device gets hot ==== | ||
Tracking a path requires frequent GPS location updates and some devices (mainly old or low-cost ones, but not always) doesn' | Tracking a path requires frequent GPS location updates and some devices (mainly old or low-cost ones, but not always) doesn' | ||
* The device becomes more hot than usual; | * The device becomes more hot than usual; |