Hello, I have tested my GPS today after a update to XXJPX, and the GPS Accuracy is now much better.
Wow, the phone displays now my really position!
Please test...
I hear this every update.. Got any tracks?
Not yet, tested @home
I find that the accuracy (not time to get a lock - but how accurate your position is) is still crap compared to the cyanogenmod rom... Accuracy on the cyanogen beta3 rom was accurate to 1.2 meters but took ages to lock (no working agps assist - just plain gps) best ive seen in the same conditions and position etc with this rom is 15 meters - and it still has the wrong house 1/2 the time they cyanogen rom has "working" gps this rom is fast and has nice features and is "finished" - wish that samsung would take the gps code from cyanogen and use that
GAda said:
Not yet, tested @home
Click to expand...
Click to collapse
Come on dude. You're testing your GPS at home? Seriously?
A side effect seems to be that the compass now works correctly as well. Before my GPS was fine by the compass was off by about 90°.
Why is this in dev?
phalanger said:
Come on dude. You're testing your GPS at home? Seriously?
Click to expand...
Click to collapse
Why not?
A simple accuracy and position stability test?
This device reports me often a jumping position.
Now I can tell you in my simple test the position is more accurate and does not jump more than 20 m.
But I know this is GPS and it can change so I wrote, please test....
Related
I tried my Tilt with iGuidance and got very disappointed. The GPS has an issue following my position. It updates the position on average every 30 sec and by the next update I can really get off the quided track.
Other people tell me that something is wrong, as the arrow on the screen should be following me smoothly in real time, not jumping city blocks. The only configurable setting for the GPS is baude rate, but I tried all values and still the same. What could be the problem?
juliank said:
I tried my Tilt with iGuidance and got very disappointed. The GPS has an issue following my position. It updates the position on average every 30 sec and by the next update I can really get off the quided track.
Other people tell me that something is wrong, as the arrow on the screen should be following me smoothly in real time, not jumping city blocks. The only configurable setting for the GPS is baude rate, but I tried all values and still the same. What could be the problem?
Click to expand...
Click to collapse
are you in the city with a bunch of tall buildings??
also d/l htc gps and see how many sats your locked on.
I was mostly in the city, but no tall buildings. The GPS can lock me really good and fast, the reception is good, it finds like 8 sattelites. The only problem is it does not stay continuously locked on position, but lockes every 30 sec or so..
I installed the logging tool and will give it a try. Thanks!
What ROM and Radio do you use? stock?
I am using The NoThrills ROM (CE OS 5.2.19170 (Build 19170.1.0.0)), which comes with R 1.58.26.20.
Just tried the HTC GPS tool - not sure what exactly to look for, but it keeps logging very fast, the lines in the logger change at a rate e few per seccond, it always showed 7-8 satellites locked and yet did not update my position in real time, but probably every 30 sec.
juliank said:
I tried my Tilt with iGuidance and got very disappointed. The GPS has an issue following my position. It updates the position on average every 30 sec and by the next update I can really get off the quided track.
Other people tell me that something is wrong, as the arrow on the screen should be following me smoothly in real time, not jumping city blocks. The only configurable setting for the GPS is baude rate, but I tried all values and still the same. What could be the problem?
Click to expand...
Click to collapse
If you are using Iguidance 4 then this is a know issues with the GPS chip in the tilt. It will not work right, the only work around is to use a separate bluetooth GPS reciever and not the internal gps. The other way is to use a different GPS software as Iguidannce 4 is the only one that I'm aware of that has this issue....
Yes, I am using iGuidance 4. Where did you see about the issue it has with the Tilt? Can you post some link? I can see only positive feedback. Would be good to know that it is a software issue and not my Tilt.....
Hi, I use miomap. My GPS is not smooth too. I don't need to wait 30 seconds to update the position, but it may need 3 to 4 seconds to update the position. It is not as smooth as tomtom.
Check out a program called GPS Gate. This issue typically has to do with WM6.1 and iGuidance 4.0 not playing well together on the Tilt. GPS Gate reports the GPS feed into something that iGuidance 4.0 can be happy with. Here's another thread for more details...
http://forum.xda-developers.com/showthread.php?t=368373&page=2
Hello all,
As developers start to use firmware 1.5 I have updated the GPS status app to work with the new firmware.
The good news is that I no longer have to use internal APIs. Some features have been removed or changed:
- Screen orientation settig has been removed as it can be configured globally in 1.5
- Magnetic declination setting is removed too, but the good news is that declination is now automatically calculated (without internet access) based on a geomagnetic model. The model also gives the absolute value of the magnetc field at your location which is also displayed.
- finally: the GPS is not automatically turned on, because average programs can no longer turn on the GPS (it is possible only by using the system settings program) (GPS switch appliction will no longer work)
Have fun, comments are welcome.
Rudolf
If you start the app without enabling GPS first, it crashes right away.
Karolis said:
If you start the app without enabling GPS first, it crashes right away.
Click to expand...
Click to collapse
Thanks, noted the issue.
Crash on 5.0.1Gr3.
I switch GPS ON before launching.
It shows the first screen, and "force close" ...
i hope this works because GPStatus is my favorite app.
g force registers at 1.00 as default... it doesnt seem to be as accurate as gps status was on 1.1, or its more sensitive i dunno.
without moving, my heading goes frim 78-81deg.
joeydsmith said:
g force registers at 1.00 as default... it doesnt seem to be as accurate as gps status was on 1.1, or its more sensitive i dunno.
Click to expand...
Click to collapse
Right, I've detected this too. It seems that the new formware is doing much less filtering than the 1.1 version. This gives a faster response with much more errors. Unfortunately I cannot do anything about it at the moment.
Having acceleration at 1.0 g is correct (at least GPS Stus 1.5 works the same way) as we are standing on the surface of the earth Thats a different stiry whether it is correct to call it "acceleration" for ordinary people (I know Einstein would not mind it )
lol yeah cant u jsut make it x-1? or sumthing lol, but yeah you are right we exipreince 1 g all the time.
joeydsmith said:
lol yeah cant u jsut make it x-1? or sumthing lol, but yeah you are right we exipreince 1 g all the time.
Click to expand...
Click to collapse
Version 1.4 did that, but that was not correct.
The problem is that acceleration is a vector not a scalar. I.e. I have to add/substract vectors not scalars...
example:
- If you would accelerate horizontally with 1g and in addition the earth has also 1g gravity, you would feel (and your phone would measure) approximately 1.41g (sqrt(1g^2+1g^2))
- on the other hand if you would accelerate vertically (upwards) with 1g, your body would feel 2g
The real problem: it is not possible to measure the direction of your acceleration (and according to Einstein its not even distinguishable from the gravity at all).
Maybe I will assume that the acceleration is horizontal (which is true for most ordinary people, moving on the surface of Earth). The rest (astronauts during launch, parachute jumpers) will get slightly wrong results, but I'm hoping they will have better equipment than relying on their G1
Rudolf i am a fan of your gpsstatus.apk and since i load the 1.5 in my dev phone i wanting for your upgrade. really i do not understand what happens with this firmware but i think that the compass do not work anyway and all operations that in the past (and that work in my g1-not updated- phone) put to work the compass now is not responding...i have my compass pointing near the east!!!...
may be (that you says) is the automatic magnetic declination are actuating but the pointing i shure that is a mistake...
i am very fustrated and worried if this issue and if you can help me to understand this, it would be very appreciated...
meanwhile i thanks so much your work and hope gpsstaus.apk go to work in the future at least good that we have working in the past...
best regards and electronics greetings from spain
I noticed a small problem with the magnetic declination, the mag declination here is - 6° 39' west according to ngdc.noaa.gov, anyway when the compass moves slightly west from north it shows -1 to -6 then jumps to 350...
rhornig said:
Right, I've detected this too. It seems that the new formware is doing much less filtering than the 1.1 version. This gives a faster response with much more errors. Unfortunately I cannot do anything about it at the moment.
Click to expand...
Click to collapse
Running average of the last 5 results would smooth it out, but yea less responsive, if you hooked it into the accelerometer to notice a suden change to reset the smoothing should take care of responsiveness...
unicornio said:
Rudolf i am a fan of your gpsstatus.apk and since i load the 1.5 in my dev phone i wanting for your upgrade. really i do not understand what happens with this firmware but i think that the compass do not work anyway and all operations that in the past (and that work in my g1-not updated- phone) put to work the compass now is not responding...i have my compass pointing near the east!!!...
Click to expand...
Click to collapse
That sounds like the compass is being influnced by a magnetic field, try waving the phone in a figure 8 to get it to reset itself.
koxx said:
Crash on 5.0.1Gr3.
I switch GPS ON before launching.
It shows the first screen, and "force close" ...
Click to expand...
Click to collapse
Thanks. Fixed (hopefully) and updated the first post.
delta_foxtrot2 said:
I noticed a small problem with the magnetic declination, the mag declination here is - 6° 39' west according to ngdc.noaa.gov, anyway when the compass moves slightly west from north it shows -1 to -6 then jumps to 350...
Click to expand...
Click to collapse
Yepp. Thats a bug. Thanks for finding I will fix it for the next release.
unicornio said:
Rudolf i am a fan of your gpsstatus.apk and since i load the 1.5 in my dev phone i wanting for your upgrade. really i do not understand what happens with this firmware but i think that the compass do not work anyway and all operations that in the past (and that work in my g1-not updated- phone) put to work the compass now is not responding...i have my compass pointing near the east!!!...
may be (that you says) is the automatic magnetic declination are actuating but the pointing i shure that is a mistake...
i am very fustrated and worried if this issue and if you can help me to understand this, it would be very appreciated...
Click to expand...
Click to collapse
After firmware upgrades or if you experience strong magnetic field the internal compass must be recalibrated. Check the heading reading in the upper left corner. If it contains ?, ?? or ??? after the number, then your compass is inaccurate and must be recalibrated.
As alsready mentioned, you should draw big 8s in the air with your phone for about a minute. If everything goes well, the ? marks should go away and your compass should be much more accurate.
rhornig said:
Thanks. Fixed (hopefully) and updated the first post.
Click to expand...
Click to collapse
It works now ! thank you !!!
delta_foxtrot2 said:
Running average of the last 5 results would smooth it out, but yea less responsive, if you hooked it into the accelerometer to notice a suden change to reset the smoothing should take care of responsiveness...
Click to expand...
Click to collapse
Thanks. Good idea, however the android framework itself should do the filtering (i'm already using the slowest possible update frequency which means the highest filtering). I will wait until the final 1.5 firmware comes out, and then revisit the issue.
Yay. It works. The compass does look a little faster
Can anyone confirm if the new firmware has fixed the GPS issues that some are having. Specifically, does GPS Test show a consistent, stable lock on satellites with a constant accuracy of 16ft or better? Ideally, can you post a screenshot of GPS Test in action with the new f/w.
If your GPS was stable before, I guess there's not much to say, unless you noticed it got worse.
Thanks.
No not for me......the best is 38ft
accuracy jups between 5 and 10m
finds up to 10 sattelites with snr 20-40. thats indoors close to window.
i tested in car to and google maps holds signal ok and moved smooth, but not as smooth as my nokia 5800xm did...
with F3 it jumped like 1cm steps.
Hi! I hope to be usefull.
When I see the arrow in the google maps the position is always the same. Its possible that the compass can be the cause of gps error?? Its possible turn off the compass to try the gps alone??
Best regards and sorry my english.
ive also wondered about this. the arrow in mytracks spins around like crazy while moving. if gps programs use the compass to help tell the direction then thats gonna be a problem.
Does anyone know if we can test this in some way? I would gladly try any solution or help with alpha testing.
gps - compass or ...sensors?
hello I have noticed a strange behavior of the gps too..
I have done many tests with the program "GPS Test" (available free on Android Market) and I noticed that after the fix if the galaxy is moved, especially if changes from portrait to landscape ( or vice versa), the program loses the fix with the satellites (all indices of satellites in use turn gray), it never happens if i disables the landscape mode in the galaxy's settings or in the gps-test 's menu...
Maybe I'm wrong, but I think the GPS is less sensitive for satellites but too sensitive to the position variations of the smartphone (horizontal / vertical during use) .. I do not know if it happens with all programs that use GPS, but I do not think this should happen.
Federico
charlicillo said:
Hi! I hope to be usefull.
When I see the arrow in the google maps the position is always the same. Its possible that the compass can be the cause of gps error?? Its possible turn off the compass to try the gps alone??
Best regards and sorry my english.
Click to expand...
Click to collapse
Like earlier Garmin or Magellan gps, the compass should be used up to the point that the gps shows 5km/h (adjustable in some devices) because the signal of the gps is unstable and is not reliable for direction under that speed. Also...
reziel73 said:
hello I have noticed a strange behavior of the gps too..
I have done many tests with the program "GPS Test" (available free on Android Market) and I noticed that after the fix if the galaxy is moved, especially if changes from portrait to landscape ( or vice versa), the program loses the fix with the satellites (all indices of satellites in use turn gray), it never happens if i disables the landscape mode in the galaxy's settings or in the gps-test 's menu...
Maybe I'm wrong, but I think the GPS is less sensitive for satellites but too sensitive to the position variations of the smartphone (horizontal / vertical during use) .. I do not know if it happens with all programs that use GPS, but I do not think this should happen.
Federico
Click to expand...
Click to collapse
... like in some sirfstarIII gps, the receiver (gps) was adjusted so that it didn't show any movement (and speed) within a circle of 15m or 30m (also adjustable) to avoid showing movement (and direction) while you were stopped.
Another fact in this category of gps devices (single frequency, autonomous etc) is that they are much more accurate about speed (0.1km/h) than position (typically usually 5m, sometimes 2m-15m or more)
So if we don't know what the default settings for the SGS's gps are, we don't know what could really be the problem. Or do we?
Anyone who knows more about the gps hardware used in SGS could help...
It would indeed be interesting to try to disable the compass altogether and see what the effect on GPS is.
Perhaps I'll look at this. I'm not a big GPS user myself so proper testing would definitely not be me.
I am using "Maverick" from the market and it seems to be working properly....
thnks about all. Im sure that someday we'll have a operative gps. Keep investigating.
Regards.
Hi all. I'm new here. My huawei p9 seem like very hard to get fix to gps while using navigation. Even thought i on outdoor without any blocking. And I'm not using any metal case either
What do you mean exactly? It takes a lot of time to find your position?
oTToToTenTanz said:
What do you mean exactly? It takes a lot of time to find your position?
Click to expand...
Click to collapse
yes. sometime more than 5 minute
Same here. My P9's GPS accuracy is poorer compared to other devices I have used.
Affects location stability on navigation app and Pokemon Go.
If I am in my car, the GPS location will be lost even by just moving the phone away from the windows. This issue was not experienced on other phones in the same car.
mengsuan said:
Same here. My P9's GPS accuracy is poorer compared to other devices I have used.
Affects location stability on navigation app and Pokemon Go.
If I am in my car, the GPS location will be lost even by just moving the phone away from the windows. This issue was not experienced on other phones in the same car.
Click to expand...
Click to collapse
Sometime not moving the phone away at all also can lost gps location. ?
This phone seems week on sense the GPS signals or to maintain accurate calculations for positioning. I doubt if this could be beter with future factory updates so thinking to get rid of.
I manually updated my P9 to B180 firmware. While accuracy of GPS has not improved much, but the lock on time is much faster. If I were to put it in words, it feels as though the GPS remembers my last known location and gets its new location locked on quicker.
mengsuan said:
I manually updated my P9 to B180 firmware. While accuracy of GPS has not improved much, but the lock on time is much faster. If I were to put it in words, it feels as though the GPS remembers my last known location and gets its new location locked on quicker.
Click to expand...
Click to collapse
same here after update to B180. hope can better if is software and not hardware problem