Re: Osmand crashes on power disconnect/connect

[Richard Finegold]

Tom, are you deactivating maps you aren't expecting to use on your trips? I 
don't know for sure if it would make a difference in speed (I have only room 
for two maps installed, the world map and a local map, so I can't test this).

Under Download Maps, on the Local tab, tap the menu icon (three stacked dots), 
and choose Deactivate.

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Re: Osmand crashes on power disconnect/connect

[Tom]

The hub dynamo recharges the phone. On flat, fast roads I can keep the 
phone topped up to 100% most of the time and then, at 100%, most of the 
power generated by the dynamo goes to the lights depending on which 
position the three way switch is in. I have a Garmin device but I prefer 
using the phone as the software is much better for navigation and generally 
more robust. It's a Sony z3 compact with magnetic charging port which is 
really useful for slipping into a case without having to tamper with a 
flimsy usb connector. 

It's also one less device to carry on tour and it's worked for me for the 
past three years. I've used Orux maps too in the past which seems more 
lightweight. Functional but I always preferred Osmand. However I've found 
Osmand to be glitchy on occasions and I seem to be going through one of 
those patches now. Locus maps and Orux seem to have more connectivity 
options to external devices but I just need my phone as a navigational 
device along tracks that I've plotted which Osmand does that perfectly.
I could try an older version of Osmand to see if it's OK as I'm sure it was 
working fine late last year under similar circumstances.

On Monday, 14 August 2017 23:25:55 UTC+1, john whelan wrote:
>
> The only thing I can suggest is run the phone from its battery.  If you 
> need to charge up a power pack or battery from the dynamo then recharge the 
> phone from that.  For a lithium battery try to keep it charged more than 
> 70%.  Running it until its is fully discharged reduces the number of times 
> you can charge and discharge your phone.
>
> Floating around on the shelf I have a USB device that takes two AA 
> batteries, they can be rechargeable ones, and it will recharge a phone or 
> tablet.  I one I have is by Everready but I'm not sure if they still make 
> them.
>
> Why are you using a dynamo to run the phone by the way? 
>
> Thanks John
>
> On 14 August 2017 at 17:57, Tom  wrote:
>
>> Hi John, 
>>
>> I suspected that might be the case. Osmand seems fairly sluggish when it 
>> starts to load the map data. I do have a lot of maps installed of various 
>> regions. I never use the data maps only offline maps. Is there anything you 
>> can suggest that I disable that would make Osmand run quicker? It's 
>> probably a feature that I've become addicted to using like shading or 
>> something like that. I'm pretty sure having POIs enabled uses more 
>> processing power so only have that on when needed. 
>>
>> What if I deleted most of my maps? Is Osmand searching through all of my 
>> maps when it starts up? If I only have one country installed then maybe 
>> that would help? I have all of Europe on my memory card at the moment.
>>
>> Thanks
>>
>> Tom
>>
>> On Monday, 14 August 2017 22:41:18 UTC+1, john whelan wrote:
>>>
>>> On a conventional PC that has an under sized power supply it will run 
>>> quite happily until the power required is greater than can be powered by 
>>> the power supply.
>>>
>>> On a PC you can put a meter on the cord going to the wall then run 
>>> different software on the PC.  Some will use noticably more power than 
>>> others.
>>>
>>> OSMand happens to be one that does more computing hence draws more power 
>>> which means it is more sensitive to power problems.
>>>
>>> When the operating system only is running the current demand is low.
>>>
>>> Cheerio John
>>>
>>>
>>>
>>> On 14 Aug 2017 5:16 pm, "Tom"  wrote:
>>>
 Using a power pack is one solution yes. I have a three way switch which 
 switches between dyno lights only, both dyno lights and regulated power 
 output or just regulated power output only. The regulated output could go 
 into a pass through battery which would in effect act as a UPS. However 
 the 
 reason that I am posting this issue on the Osmand forum is that Osmand 
 crashes when other applications such as Locus or Strava remain stable 
 under 
 the similar circumstances. So why would only Osmand seem to be affected by 
 this issue? The operating system seems unaffected.

 I like to run Osmand so that the screen comes on only when an 
 announcement is made which is a fantastic feature for saving battery 
 power. 
 It's this that has been saving my skin recently as I have been doing a lot 
 of very hilly rides where there isn't enough power to feed into the phone. 
 So of course whenever I get to an uphill I switch off the power to the 
 phone and Osmand crashes, sometimes it doesn't. This is really frustrating 
 as I then have to wait for Osmand to restart from where it left off. At 
 which point it then begins to start saving a new track log. 

 I've managed to send one Osmand crashlog so far. Not sure where Osmand 
 saves it's crash logs. Would there be any way of retrieving these easily? 

 Andy's suggestion on getting Android crash logs looks too complicated 
 as it seems I need to 

Re: Osmand crashes on power disconnect/connect

[john whelan]

The only thing I can suggest is run the phone from its battery.  If you
need to charge up a power pack or battery from the dynamo then recharge the
phone from that.  For a lithium battery try to keep it charged more than
70%.  Running it until its is fully discharged reduces the number of times
you can charge and discharge your phone.

Floating around on the shelf I have a USB device that takes two AA
batteries, they can be rechargeable ones, and it will recharge a phone or
tablet.  I one I have is by Everready but I'm not sure if they still make
them.

Why are you using a dynamo to run the phone by the way?

Thanks John

On 14 August 2017 at 17:57, Tom  wrote:

> Hi John,
>
> I suspected that might be the case. Osmand seems fairly sluggish when it
> starts to load the map data. I do have a lot of maps installed of various
> regions. I never use the data maps only offline maps. Is there anything you
> can suggest that I disable that would make Osmand run quicker? It's
> probably a feature that I've become addicted to using like shading or
> something like that. I'm pretty sure having POIs enabled uses more
> processing power so only have that on when needed.
>
> What if I deleted most of my maps? Is Osmand searching through all of my
> maps when it starts up? If I only have one country installed then maybe
> that would help? I have all of Europe on my memory card at the moment.
>
> Thanks
>
> Tom
>
> On Monday, 14 August 2017 22:41:18 UTC+1, john whelan wrote:
>>
>> On a conventional PC that has an under sized power supply it will run
>> quite happily until the power required is greater than can be powered by
>> the power supply.
>>
>> On a PC you can put a meter on the cord going to the wall then run
>> different software on the PC.  Some will use noticably more power than
>> others.
>>
>> OSMand happens to be one that does more computing hence draws more power
>> which means it is more sensitive to power problems.
>>
>> When the operating system only is running the current demand is low.
>>
>> Cheerio John
>>
>>
>>
>> On 14 Aug 2017 5:16 pm, "Tom"  wrote:
>>
>>> Using a power pack is one solution yes. I have a three way switch which
>>> switches between dyno lights only, both dyno lights and regulated power
>>> output or just regulated power output only. The regulated output could go
>>> into a pass through battery which would in effect act as a UPS. However the
>>> reason that I am posting this issue on the Osmand forum is that Osmand
>>> crashes when other applications such as Locus or Strava remain stable under
>>> the similar circumstances. So why would only Osmand seem to be affected by
>>> this issue? The operating system seems unaffected.
>>>
>>> I like to run Osmand so that the screen comes on only when an
>>> announcement is made which is a fantastic feature for saving battery power.
>>> It's this that has been saving my skin recently as I have been doing a lot
>>> of very hilly rides where there isn't enough power to feed into the phone.
>>> So of course whenever I get to an uphill I switch off the power to the
>>> phone and Osmand crashes, sometimes it doesn't. This is really frustrating
>>> as I then have to wait for Osmand to restart from where it left off. At
>>> which point it then begins to start saving a new track log.
>>>
>>> I've managed to send one Osmand crashlog so far. Not sure where Osmand
>>> saves it's crash logs. Would there be any way of retrieving these easily?
>>>
>>> Andy's suggestion on getting Android crash logs looks too complicated as
>>> it seems I need to install another app on my laptop and the logs are
>>> indecipherable without this app if I've read that correctly? Besides, it's
>>> not Android that's crashing.
>>>
>>> However, in answer to Andy's question. No it doesn't crash when I plug
>>> or unplug a regular charger which would suggest that it's the manner in
>>> which it's being charged. Why then aren't the other two aforementioned
>>> applications affected? What is making Osmand so sensitive to the power
>>> connections?
>>>
>>> Thanks for all your suggestions so far.
>>>
>>>
>>> On Monday, 14 August 2017 17:52:03 UTC+1, Peter B wrote:

 Idea for a workaround:
 Could it help, using a power pack between bike dynamo and phone ?
 It should offer input and output at the same time.
 This should buffer any peaks which could come from dynamo.
 It is not expensive and if would help...
 Regards Peter
>>>
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>>>
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Re: Osmand crashes on power disconnect/connect

[Tom]

Hi John, 

I suspected that might be the case. Osmand seems fairly sluggish when it 
starts to load the map data. I do have a lot of maps installed of various 
regions. I never use the data maps only offline maps. Is there anything you 
can suggest that I disable that would make Osmand run quicker? It's 
probably a feature that I've become addicted to using like shading or 
something like that. I'm pretty sure having POIs enabled uses more 
processing power so only have that on when needed. 

What if I deleted most of my maps? Is Osmand searching through all of my 
maps when it starts up? If I only have one country installed then maybe 
that would help? I have all of Europe on my memory card at the moment.

Thanks

Tom

On Monday, 14 August 2017 22:41:18 UTC+1, john whelan wrote:
>
> On a conventional PC that has an under sized power supply it will run 
> quite happily until the power required is greater than can be powered by 
> the power supply.
>
> On a PC you can put a meter on the cord going to the wall then run 
> different software on the PC.  Some will use noticably more power than 
> others.
>
> OSMand happens to be one that does more computing hence draws more power 
> which means it is more sensitive to power problems.
>
> When the operating system only is running the current demand is low.
>
> Cheerio John
>
>
>
> On 14 Aug 2017 5:16 pm, "Tom"  wrote:
>
>> Using a power pack is one solution yes. I have a three way switch which 
>> switches between dyno lights only, both dyno lights and regulated power 
>> output or just regulated power output only. The regulated output could go 
>> into a pass through battery which would in effect act as a UPS. However the 
>> reason that I am posting this issue on the Osmand forum is that Osmand 
>> crashes when other applications such as Locus or Strava remain stable under 
>> the similar circumstances. So why would only Osmand seem to be affected by 
>> this issue? The operating system seems unaffected.
>>
>> I like to run Osmand so that the screen comes on only when an 
>> announcement is made which is a fantastic feature for saving battery power. 
>> It's this that has been saving my skin recently as I have been doing a lot 
>> of very hilly rides where there isn't enough power to feed into the phone. 
>> So of course whenever I get to an uphill I switch off the power to the 
>> phone and Osmand crashes, sometimes it doesn't. This is really frustrating 
>> as I then have to wait for Osmand to restart from where it left off. At 
>> which point it then begins to start saving a new track log. 
>>
>> I've managed to send one Osmand crashlog so far. Not sure where Osmand 
>> saves it's crash logs. Would there be any way of retrieving these easily? 
>>
>> Andy's suggestion on getting Android crash logs looks too complicated as 
>> it seems I need to install another app on my laptop and the logs are 
>> indecipherable without this app if I've read that correctly? Besides, it's 
>> not Android that's crashing.
>>
>> However, in answer to Andy's question. No it doesn't crash when I plug or 
>> unplug a regular charger which would suggest that it's the manner in which 
>> it's being charged. Why then aren't the other two aforementioned 
>> applications affected? What is making Osmand so sensitive to the power 
>> connections?
>>
>> Thanks for all your suggestions so far.
>>
>>
>> On Monday, 14 August 2017 17:52:03 UTC+1, Peter B wrote:
>>>
>>> Idea for a workaround:
>>> Could it help, using a power pack between bike dynamo and phone ? 
>>> It should offer input and output at the same time. 
>>> This should buffer any peaks which could come from dynamo.
>>> It is not expensive and if would help...
>>> Regards Peter
>>
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>> "Osmand" group.
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>>
>

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Re: Osmand crashes on power disconnect/connect

[john whelan]

On a conventional PC that has an under sized power supply it will run quite
happily until the power required is greater than can be powered by the
power supply.

On a PC you can put a meter on the cord going to the wall then run
different software on the PC.  Some will use noticably more power than
others.

OSMand happens to be one that does more computing hence draws more power
which means it is more sensitive to power problems.

When the operating system only is running the current demand is low.

Cheerio John



On 14 Aug 2017 5:16 pm, "Tom"  wrote:

> Using a power pack is one solution yes. I have a three way switch which
> switches between dyno lights only, both dyno lights and regulated power
> output or just regulated power output only. The regulated output could go
> into a pass through battery which would in effect act as a UPS. However the
> reason that I am posting this issue on the Osmand forum is that Osmand
> crashes when other applications such as Locus or Strava remain stable under
> the similar circumstances. So why would only Osmand seem to be affected by
> this issue? The operating system seems unaffected.
>
> I like to run Osmand so that the screen comes on only when an announcement
> is made which is a fantastic feature for saving battery power. It's this
> that has been saving my skin recently as I have been doing a lot of very
> hilly rides where there isn't enough power to feed into the phone. So of
> course whenever I get to an uphill I switch off the power to the phone and
> Osmand crashes, sometimes it doesn't. This is really frustrating as I then
> have to wait for Osmand to restart from where it left off. At which point
> it then begins to start saving a new track log.
>
> I've managed to send one Osmand crashlog so far. Not sure where Osmand
> saves it's crash logs. Would there be any way of retrieving these easily?
>
> Andy's suggestion on getting Android crash logs looks too complicated as
> it seems I need to install another app on my laptop and the logs are
> indecipherable without this app if I've read that correctly? Besides, it's
> not Android that's crashing.
>
> However, in answer to Andy's question. No it doesn't crash when I plug or
> unplug a regular charger which would suggest that it's the manner in which
> it's being charged. Why then aren't the other two aforementioned
> applications affected? What is making Osmand so sensitive to the power
> connections?
>
> Thanks for all your suggestions so far.
>
>
> On Monday, 14 August 2017 17:52:03 UTC+1, Peter B wrote:
>>
>> Idea for a workaround:
>> Could it help, using a power pack between bike dynamo and phone ?
>> It should offer input and output at the same time.
>> This should buffer any peaks which could come from dynamo.
>> It is not expensive and if would help...
>> Regards Peter
>
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Re: Osmand crashes on power disconnect/connect

[Tom]

Using a power pack is one solution yes. I have a three way switch which 
switches between dyno lights only, both dyno lights and regulated power 
output or just regulated power output only. The regulated output could go 
into a pass through battery which would in effect act as a UPS. However the 
reason that I am posting this issue on the Osmand forum is that Osmand 
crashes when other applications such as Locus or Strava remain stable under 
the similar circumstances. So why would only Osmand seem to be affected by 
this issue? The operating system seems unaffected.

I like to run Osmand so that the screen comes on only when an announcement 
is made which is a fantastic feature for saving battery power. It's this 
that has been saving my skin recently as I have been doing a lot of very 
hilly rides where there isn't enough power to feed into the phone. So of 
course whenever I get to an uphill I switch off the power to the phone and 
Osmand crashes, sometimes it doesn't. This is really frustrating as I then 
have to wait for Osmand to restart from where it left off. At which point 
it then begins to start saving a new track log. 

I've managed to send one Osmand crashlog so far. Not sure where Osmand 
saves it's crash logs. Would there be any way of retrieving these easily? 

Andy's suggestion on getting Android crash logs looks too complicated as it 
seems I need to install another app on my laptop and the logs are 
indecipherable without this app if I've read that correctly? Besides, it's 
not Android that's crashing.

However, in answer to Andy's question. No it doesn't crash when I plug or 
unplug a regular charger which would suggest that it's the manner in which 
it's being charged. Why then aren't the other two aforementioned 
applications affected? What is making Osmand so sensitive to the power 
connections?

Thanks for all your suggestions so far.


On Monday, 14 August 2017 17:52:03 UTC+1, Peter B wrote:
>
> Idea for a workaround:
> Could it help, using a power pack between bike dynamo and phone ? 
> It should offer input and output at the same time. 
> This should buffer any peaks which could come from dynamo.
> It is not expensive and if would help...
> Regards Peter

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Re: Osmand crashes on power disconnect/connect

[john whelan]

The problem is you need to isolate the phone so charging the power pack up
then disconnecting it from the dynamo would work fine but having the phone
connections and the dynamo connections connected would mean fluctuations
still reach the phone.

It would however diminish brownouts but the phone's battery should do that
anyway.

Cheerio John

On 14 August 2017 at 12:52, Peter B  wrote:

> Idea for a workaround:
> Could it help, using a power pack between bike dynamo and phone ?
> It should offer input and output at the same time.
> This should buffer any peaks which could come from dynamo.
> It is not expensive and if would help...
> Regards Peter
>
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Re: Osmand crashes on power disconnect/connect

[Peter B]

Idea for a workaround:
Could it help, using a power pack between bike dynamo and phone ? 
It should offer input and output at the same time. 
This should buffer any peaks which could come from dynamo.
It is not expensive and if would help...
Regards Peter

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Re: Osmand crashes on power disconnect/connect

[john whelan]

>What does it actually crash with (this StackOverflow entry might be useful
- https://stackoverflow.com/questions/3643395/how-to-get-android-crash-logs
)?  Does it crash when you just plug in or unplug a regular phone charger?
If not, then something must be different - and perhaps broken - about the
regulator you're using.

At a deeper level these days electronics depend on detecting a number of
electrons.  Memory cells for example are two plates and you store a charge
on them then detect if the charge is there or not.  The way you do this is
by storing electrons on one side a negative charge but Heisenberg's
uncertainty principle mean*s *for a single electron you cannot be certain
exactly where it is.  Fortunately for a group of them stats comes into play
and we can be reasonably certain.  Memory cells can discharge a few
electrons for various reasons and so for a one if we put 10,000 electrons
on to start we might end up with 8,000.  For a zero instead of 0 electrons
we might end up with 1,000.

In the real world if the memory cell isn't perfect and only stores 6.000
electrons then the voltage is low you might end up with 4,000 not 6,000.
At what point do you decide if its a one or a zero?

The more electrons we use the better the result, however the less we use
the cheaper it is to manufacture by reducing the cell size.  Now do you see
how varying the voltage can affect the memory cells?

The insulator between the two plates can be broken down with sufficient
voltage once this has happened it will require a lower over voltage the
next time to discharge and that is what shortens the life of the phone.

Cheerio John

On 13 August 2017 at 12:31, Andy Townsend  wrote:

> On 13/08/2017 16:04, Tom wrote:
>
>>
>> When I don't ride at enough speed to generate power to the phone the
>> power disconnects and Osmand crashes. This will also happen when the power
>> then reconnects too.
>>
>
> What does it actually crash with (this StackOverflow entry might be useful
> - https://stackoverflow.com/questions/3643395/how-to-get-andro
> id-crash-logs )?  Does it crash when you just plug in or unplug a regular
> phone charger?  If not, then something must be different - and perhaps
> broken - about the regulator you're using.
>
> Best Regards,
>
> Andy
>
>
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Re: Osmand crashes on power disconnect/connect

[Andy Townsend]

On 13/08/2017 16:04, Tom wrote:


When I don't ride at enough speed to generate power to the phone the 
power disconnects and Osmand crashes. This will also happen when the 
power then reconnects too.


What does it actually crash with (this StackOverflow entry might be 
useful - 
https://stackoverflow.com/questions/3643395/how-to-get-android-crash-logs 
)?  Does it crash when you just plug in or unplug a regular phone 
charger?  If not, then something must be different - and perhaps broken 
- about the regulator you're using.


Best Regards,

Andy

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Re: Osmand crashes on power disconnect/connect

[john whelan]

Electronic equipment likes a very smooth power supply.  Computers last
longer when they are behind a UPS.

Fifty years ago we used an electric motor / generator set that smoothed out
the variations in mains power supplies.

A mil spec phone might be able to withstand charging from a bicycle dynamo
a conventional phone will not.  One surge and its dead, I think you're
shortening its life by a factor of 80%.

Certain parts of the phone will be more susceptible than others and it
depends which circuits the different software uses and the drain they put
on the phone.

The advice would be don't do this.

Cheerio John

On 13 August 2017 at 11:04, Tom  wrote:

> I charge my phone from my bicycle dynamo. I use a regulator which supplies
> the correct power output at DC to the phone.
>
> When I don't ride at enough speed to generate power to the phone the power
> disconnects and Osmand crashes. This will also happen when the power then
> reconnects too. I have Strava running in the background which is unaffected
> by the power disconnects / re-connects. I tried replicating this problem,
> disconnecting the power supply the reconnecting, with a normal power supply
> and Osmand seems fine. I would normally assume that it is a hardware issue.
> The thing is why is it only Osmand that seems to be affected by this
> problem? The recorded tracks from Strava show no problem at all whereas
> Osmand will generate separate recorded tracks for the same ride from when
> it crashes and then I have to start it up again.
>
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Osmand crashes on power disconnect/connect

[Tom]

I charge my phone from my bicycle dynamo. I use a regulator which supplies 
the correct power output at DC to the phone. 

When I don't ride at enough speed to generate power to the phone the power 
disconnects and Osmand crashes. This will also happen when the power then 
reconnects too. I have Strava running in the background which is unaffected 
by the power disconnects / re-connects. I tried replicating this problem, 
disconnecting the power supply the reconnecting, with a normal power supply 
and Osmand seems fine. I would normally assume that it is a hardware issue. 
The thing is why is it only Osmand that seems to be affected by this 
problem? The recorded tracks from Strava show no problem at all whereas 
Osmand will generate separate recorded tracks for the same ride from when 
it crashes and then I have to start it up again.

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