Related
Hello,
I am new to the forum and also the owner of an HTC Fuze. I have been playing around recently with the GPS on the phone and got me thinking. I live in NY and we have a CORS network of gps base stations that are fed by the use of ntrip.
I was wondering if their was any way to use the gps signal on my phone and the connection to this CORS network to give me sub inch accuracy on my phone...then not sure what I would do with it then. But I do live on a farm and I would like to see some type of precision agricultural use.
I guess I need a way to have the GPS on the phone talk with the GNSS internet radio and then give me spot on guidance and such.
Please let me know your thoughts or if I need to explain better.
Thanks,
Clayton
bump
bump. Any ideas? Anyone
Great idea cwrisrey !
That will save the cost of a geodetic device, which is many times the cost of a Fuze. Further, it will lead the accuracy of the buildin GPS into millimum class.
Not dig into this further, would you go further to tell these:
Is that CORS data encrypted?
Is that accessible through public internet or VPN?
Is there copy right or intellectuall property right issue involved? (I don't think so, but better make it clear first)
Once again, great idea. Please do remember to update this thread once you got any progress. Thanks.
More info
Hello wg5566,
This site would probably answer alot of your questions clearer than I could:
http://www6.nysdot.gov/spiderweb/frmIndex.aspx
* Is that CORS data encrypted?
-I don't believe so, I think that it is just a form of compression, to distribute across the internet.
* Is that accessible through public internet or VPN?
Yes, the NYS CORS anyway. It accessible from the public internet (although they require you to register with them) But I believe there are other free streams. I also believe it was modeled after being able to be sent threw GPRS.
* Is there copy right or intellectuall property right issue involved? (I don't think so, but better make it clear first)
-I believe the ntrip is based on a GNU, I think the source code is available. http://igs.bkg.bund.de/index_ntrip_down.htm
Windows CE version:
http://www.ilmb.gov.bc.ca/crgb/gsr/downloads/installGNSS.CAB
Please, let me know your thoughts...
Thanks,
Clayton
My fast thoughts:
First make sure there is no satisfied freeware currently available for WM.
If so please ask a moderator to move this to the development & hackings section. And Add tyis sentence on the title: Call for developers for revolutionary GPS app!
I'm sure somebody here can develop this. You know the geodetic device was invented many years ago with very weak profiles comparing to current WM devices. The hardware on our phone should be capable to deal with these calculations, and the WM Pro platform should be capable to support such an app. Anyway it should not be a biggy for many masters here. But it is a biggy for gps users with high accuracy demand for any reason.
Edit: Did you try install that wince cab on your phone? I think some of WINCE apps can just run on WM. Please backup your data first.
Edit2: I tried to install it on my device, at first it did not show up in start menu, then I found the cab just put files and shortcut in the folder names in French. But there is no registry involved in the cab. Only three files. And then program UI itself is in English. Just run the executable from the folder will go right out of the box. So please try it. I did not try to connect & loggin yet, due to not registered account.
Edit3: Looks like the cab is only access the data from internet, convert the data format and export the data, but we still need a geodetic/gps software to process/use the data.
Disclaimer: I attatched these three files for the only purppose of exchanging software developement infomation. Anybody if download it please do not use it for any purppose other than this. Thanx.
Some thoughts on the subject
Hi All,
The idea of using NTRIP to make a Windows Mobile GPS device sub-meter accurate crossed my mind. After some research I found this thread.
Unfortunately, I haven't been able to find any software capable of doing this. My idea is that it should be possible to accomplish this goal, using a combination of existing tools (which would be really cool!).
As wg5566 notes, there is a (WM) tool called GNSS Internet Radio, which is capable of downloading NTRIP corrections. It turns out this software works, but does have some flaws. Someone wrote another open source tool which is better (?), but unfortunately it isn't built for Windows Mobile (see: http://lefebure.com/software/).
More searching revealed a (dead?) project on codeplex: SharpGPS. It's an unfinished demo. It does however seem to be designed to do exactly what we're suggesting in this thread.
My idea: Completing the WM version of SharpGPS with parts of GNSS Internet radio / lefebure NTRIP client should result in a tool that's capable of upgrading a WM devices' gps signal to sub-meter accuracy through RTK/DGPS corrections over NTRIP.
Any ideas / suggestions about this?
It's already been done for the commercial market
Land surveyors, construction companies, and farmers use RTK GPS and RTK GNSS correction services on a regular basis. Some are free and some are paid subscription. They can be either NTRIP protocol with casters or individual TCP or UDP connections. Examples of software available are Carlson SurvCE and MicroSurvey. Read Carlson's support site for how they deal with the data flow using such networks on SurvCE (Windows Mobile and CE).
I have worked in land surveying using such equipment, and it generally requires dual frequency receivers, RTK corrections, and high quality antennas to achieve 1-2cm 95% CI horizontal precision. The current GPS chips in cell phones are only single frequency and so the best you could expect under ideal conditions is 2'-3' precision using some form of differential correction like WAAS or beacon or DGPS via NTRIP. Under average conditions, the precision will likely be in the 10-20' range. The dual frequency receivers take care of the large errors caused by radio waves traveling through the ionosphere.
Due to the limitations of batteries, antennas, and space for more chips in cellphones, the future of location accuracy will likely include some combination of GPS/GLONASS and cellular radio signal frequency timing calculations from cell towers. True Position, with its U-TDOA technology, is one example of measuring the time differences of cell phone radio waves using cell towers with known coordinates. Rumors (from surveying journals) have it that there are current patents in place that can allow for sub foot precision using such methods when sufficient cell towers are present for multilateration.
Has anyone found success on this topic? WM or Android...
Would be very interested, since there is a free NTRIP feed available in Switzerland... anyone?
*bump* it up
Been there still trying. Problem is no carrier phase off internal gps.
Grimli said:
Hi All,
The idea of using NTRIP to make a Windows Mobile GPS device sub-meter accurate crossed my mind. After some research I found this thread.
As wg5566 notes, there is a (WM) tool called GNSS Internet Radio, which is capable of downloading NTRIP corrections. It turns out this software works, but does have some flaws. Someone wrote another open source tool which is better (?), but unfortunately it isn't built for Windows Mobile (see: /lefebure.com/software/).
Click to expand...
Click to collapse
Lance lefebure is a really cool guy I'm sure he wouldn't have any problem building a wm version but it is going to takea lot more than that to get rtk to a cell phone.
Very good ,thanks.
Ed hardy bikini said:
Very good ,thanks.
Click to expand...
Click to collapse
If you are confused just ask questions and I will do my best to answer them. I am in the ag industry and deal with RTK networks and different ways of connecting them and tons of different gps units on a daily basis.
Look at this:
http://stakemill.wordpress.com/2010/07/19/ashtech-mobile-mapper-100-supports-esri-arcpad-10-0/
and this:
http://www.ashtech.com/-2359.kjsp?RH=1272644205746&RF=1270806507068
Is that still a phone !?
wg5566 said:
Look at this:
Is that still a phone !?
Click to expand...
Click to collapse
Nope PDA with support for external GPS with a builtin reciever that even sees glonass satellites (russian constelation). That was made specifically to do RTK mapping. It does have a GSM radio for data to connect to the cors.
Phone positioning using CORS
To perform a CORS (Network Reference correction we need a GGA stream from the GPS in your device. This allows us to remove the anomalies and provde the correction stream. As phones use a sirf II chip or similar they do not have input capability to output the NMEA stream to achieve this.
This one works great! it will connect to an Rtk receiver and get the nmea string from it or will use the internal GPS to be able to register on the CORS network. It will then stream the corrections over Bluetooth to a receiver or even a repeater radio. It won't however correct the internal GPS. http://antrip.dyndns.biz/Home/DownloadTrial
I've been searching for a long time (years) for a wm app similar to something I had on an old Nokia which let me see which cell I'm connected to, it's strength, and the capability to give cells friendly names. Also a realtime updated graph showing signal strength vs time.
At last the app "Nicetrack" works properly and someone also kindly modded it for vga resolution.
http://forum.ppcwarez.org/viewtopic.php?f=65&t=107293
The direct download link for the vga version:
http://www.megaupload.com/?d=5UPD6I78
No instal needed, just dump the exe somewhere, create a shortcut in "\windows\start menu\programs" and run it.
Tested on my TD2 with wm6.1
*All credit to the Nicetrack developer and the guy who changed the source code for vga*
Fied Test inside Windows folder is the best. No one third apps...
Regards
Fieldtest.exe is useful for a quick check of cell id and signal strength (most of the other info doesn't mean anything to me) and, of course, it's a "native" app.
But Nicetrack does so much more. It's much easier to assess signal strength when you can see it as a bar which updates at 5sec intervals (default is 20sec but can be changed) rather than a number. Being able to give cells names is also vital unless you're good at remembering cell id numbers. Together with the moving history graph you can build up a nice picture of your local coverage.
If that's what you want to do... (I obviously have too much time on my hands)
The mega link has been siezed...is there somewhere else to download Nicetrack?
~James
Hi all,
Considering introducing some kind of GPS Localization module to my project, I decided to create small test application just to see how does the Microsoft API work.
I referenced the code provided with Compact Framework to wrapp the original library and used it in my application. It was pleased to see, that everyting works just from scratch, but after a while I came across quite worrying behaviour.
Everything went good, before the signal was lost. What you expect then is the LocationChangedEvent to stop firing or position not validating at least.
Not this time. I got new position reports every second, including changing precision, satellites in view, GPS time, altitude.. everything.
Even using GetPosition() with TimeSpan set for 1 minute each new position was accepted. You could catch this data even after hour sitting in a tunnel, far from any sattelites signal, still getting new reports.
Is it typical behaviour for this devices? How could you recognize if the signal has been really lost or not then?
My Device is HTC HD2, Windows Mobile 6.5 inside. Behaviour does not depends on COM port selection or any other configuration.
P.S. Hmm, what is more I have noticed that the situation is similar using applications like OpenStreetMaps, etc.
Any idea?
Best Regards
Mikolaj
As this is not a development yet and still a question, moved to Q&A.
Please contact a MOD when this becomes a working APP and feel free to post it in D&H if you wish to share it.
Till then it will have to be entertained in Q&A.
Moved.
Hi all,
Just wanted to share this app that found a little while ago and which was a great surprise for me.
Basically I was looking for an application that would let me see my place through my mobile phone.I tried a couple of apps but some needed really security camera systems but I just have a pc webcam..,others would not let me connect if i was not on the same network. And the best thing is that sound streaming will be implemented soon (as per the developer, who has shown a high customer service focus to me since I was unable to connect and spent a lot of time in helping me to sort it out)
This app can be used with 3G/Wifi connections... (just make sure you have a permanent public Ip address).
Lite version.
https://play.google.com/store/apps/...t#?t=W251bGwsMSwyLDEsIm1sYy53ZWJjYW10cmlhbCJd
Paid version
https://play.google.com/store/apps/details?id=mlc.webcam&feature=more_from_developer
Hope this app is useful for somebody!
Cheers.
Do you want to know if someone is connected to your wireless network without your permission? Your connection is slow and you suspect that someone are stealing your wifi? Are you afraid that the neighbor may have access to your personal data?
Wifi Inspector is a simple tool to see all the devices connected to our network (both wired and wifi, whether consoles, TVs, pcs, tablets, phones etc ...), giving relevant data such as IP address, manufacturer, device name and MacAddress.
Wifi Inspector also allows to save a list of known devices with custom name and find intruders in less than 30 seconds. This makes it easier for us and you will not need to go checking the data whenever we make a scan.
All this in a clear and simple design that allows us to see that our personal data are safe in a few seconds.
No doubt, Wifi Ispector ALWAYS find ALL connected devices!!
We continue working to improve Wifi Inspector and we greatly appreciate that you share your opinions whether positive or negative. We have almost no reports of problems in the poor ratings (only one star with no comment) This makes difficult that we can improve the application. Please if you have any problems / suggestions do not hesitate to send it to us, in your comment or with email, and we will try to fix it.
Languages
- Spanish
- English
- Italian
- Catalan
- Russian
- French
For a better experience we recommend Android 4.0 or more.
Get it on Google Play : https://play.google.com/store/apps/details?id=lksystems.wifiintruder&hl=en
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
We are having good feedback and good reviews in some important webs in the spanish android word:
http://www.elandroidelibre.com/2013/08/wifi-inspector-averigua-si-hay-alguien-mas-en-tu-conexion-wifi.html
http://www.movilzona.es/2014/05/18/con-inspector-wifi-conoceras-todos-los-dispositivos-que-hay-en-tu-red/
http://www.androidsis.com/quien-roba-mi-wifi/
Please if have any problems / suggestions do not hesitate to send to us an email at [email protected], and we will try to fix it.
Very Interesting Concept however it failed to work. Did not detect my nexus 7 2013. Only found the router and my device. (Moto G)
Netgear router.. wifi passworded protected (possibly WPA2).
And interstitial ads on exit first time i've seen that.
hotspot_volcano said:
Very Interesting Concept however it failed to work. Did not detect my nexus 7 2013. Only found the router and my device. (Moto G)
Netgear router.. wifi passworded protected (possibly WPA2).
And interstitial ads on exit first time i've seen that.
Click to expand...
Click to collapse
Hi hotspot_volcano,
In some cases a device close de wifi in suspended state or is time out response caused by a low connection quality. We tested in few big nets with more than 100 devices with no errors.
Have you tested Wifi Inspector from the Nexus with same results? and in other wifi?
Thanks for your comment
LK Interactive Services said:
Hi hotspot_volcano,
In some cases a device close de wifi in suspended state or is time out response caused by a low connection quality. We tested in few big nets with more than 100 devices with no errors.
Have you tested Wifi Inspector from the Nexus with same results? and in other wifi?
Thanks for your comment
Click to expand...
Click to collapse
Well on the nexus 7 2013 (rooted) I was able to find the connected wired device as well as my phone. (found 6 devices)
They are marked with an cross whatever that means?
Tried it again on my Moto G (stock) and it still shows only 2 devices.
And the wifi router is problematic sometimes its hard to connect to it but once a device is connected its good 90% of the time.
The result on your Moto G : Wifi Inspector reset the wifi connection at start, then if fails to reconnect or reconnected in more than 30 seconds may not locate all devices. Try scan with other router, i think your get good results.
A device with a cross means that is not in the "safe list" (known devices). You can add your known devices on the "device screen" and, if you want, can set a customized name. For the next scans you will see all known devices with a "V" mark and with the customized name.
I tried it out, looks promising. I compared the reported attached devices from my Netgear WNDR3700v2 router with Netgear Genie. Everything matches up, nice job!
The UI is fairly pleasant, but does not adhere to current Android design guidelines. You've got the option to delete known devices list hidden in the legacy menu. My device does not have that by default, however I add it with GravityBox specifically for older apps that still have it. Folks with devices that do not have hardware / software menu button will never discover that option. If you add the 3 dot menu in the upper right for it, that would work well for now. If you decide to add more things, you could also add it there or create a hamburger menu in the upper left.
I haven't found any bugs to report thus far, that's always a good sign. Keep it up!
As I mentioned in my Play Store review: Those that think this can ban unknown users must realize you can't do that from your stock router firmware to begin with, how could a simple app do that?
The application seems ok, but compared to Fing network tools, this doesn't bring anything to the table, and it has ads. So, nice work but it offers not much.
yochananmarqos said:
I tried it out, looks promising. I compared the reported attached devices from Netgear WNDR3700v2 router with Netgear Genie. Everything matches up, nice job!
The UI is fairly pleasant, but does not adhere to current Android design guidelines. You've got the option to delete known devices list hidden in the legacy menu. My device does not have that by default, however I add it with GravityBox specifically for older apps that still have it. Folks with devices that do not have hardware / software menu button will never discover that option. If you add the 3 dot menu in the upper right for it, that would work well for now. If you decide to add more things, you could also add it there or create a hamburger menu in the upper left.
I haven't found any bugs to report thus far, that's always a good sign. Keep it up!
As I mentioned in my Play Store review: Those that think this can ban unknown users must realize you can't do that from your stock router firmware to begin with, how could a simple app do that?
Click to expand...
Click to collapse
First of all, thanks so much for your comment.
About the hidden option "reset known device list", the true is that we are thinking about if it's really helpful or not, but is probably that we will change it on the next update.
rbrandser said:
The application seems ok, but compared to Fing network tools, this doesn't bring anything to the table, and it has ads. So, nice work but it offers not much.
Click to expand...
Click to collapse
Hi rbrandser , Fing is an excellent application, but exists many types of user and we think Fing is oriented for some and Wifi Inspector for others, ie, anyone can click and see if have or not intruders, but not everyone knows how to do a 'wake on lan "or even know what it is.
We have prioritized scanning reliability, simplicity and finally the design (in this order).
We understand that for many users with experience and knowledge Wifi Inspector may be "short", but for the rest, we offer an easy, visual and 100% reliable in the scan result application.
We will greatly appreciate that you share your opinion.
Can this app stop connection of the device ?
Good app, but I don't like the interface and it lacks a lot features, which similar apps like Dsploit and Fing do have. So for me there is no reason to use this.
No it can't
kingofpain1402 said:
Can this app stop connection of the device ?
Click to expand...
Click to collapse
As far as I can see it's only able to tell you what devices are connected to your network and their MAC address. While it works like a charm in that department having a few more options, I must admit, would have been nice.
Using the app causes my phone to disconnect from WiFi, so not much use! (S4). Had to uninstall...
Good app,it works fine
Good app but the ads are annoying and I dont like the interface
wouter-visser said:
Good app, but I don't like the interface and it lacks a lot features, which similar apps like Dsploit and Fing do have. So for me there is no reason to use this.
Click to expand...
Click to collapse
Hi wouter-visser,
We tested Fing and Wifi Inspector in various scenarios and the general differences that are appreciated:
- Usually Inspector Wifi is faster in large networks with many devices.
- Usually Fing is faster on small networks with few devices.
- Wifi Inspector finds more device names (very important for intrusion detection)
- The reliability of scanning is very close to 100% in both (a bad coverage or occasional factor can make a device undetectable)
- Fing has more features (not required for intrusion detection)
- The Inspector Wifi interface is minimalist and fing is more professional.
We understand that wifi inspector is not for everyone, but we think that many people are grateful that can check if they have an intruder with a simple but accurate application.
We will greatly appreciate that you share your opinion.
mrjraider said:
Good app but the ads are annoying and I dont like the interface
Click to expand...
Click to collapse
We are a small software company and recently we have begun to develop applications for mobile devices. The ads are the way we get some benefits to further develop and improve our applications. We did not use intrusive advertising and we never will use it. Also is available the pro version (ad free) for people who want to support us.
Thank you for sharing your opinion is important for us.
kingofpain1402 said:
Can this app stop connection of the device ?
Click to expand...
Click to collapse
I think you can use WifiKill for this (if you have android rooted) or Netcut for windows.
For security find the Mcc address of the intruder and ban him from the MAC address filter in the router.
my97 said:
I think you can use WifiKill for this (if you have android rooted) or Netcut for windows.
For security find the Mcc address of the intruder and ban him from the MAC address filter in the router.
Click to expand...
Click to collapse
Not 100% effective btw, a person with a little knowledge and some googling can easily spoof a MAC address. A better option would be to change/add a wifi password. Preferrably WPA or WPA2 with a nice long passphrase.
No issues here, worked well in a small network with 6 connected devices (and recognized all).
If you need help to translate to Portuguese-BR, let me know.
Thanks.