GPS starts emitting data as soon as I kill GPSD
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I can't really figure out how GPSD works. If I start gpsmon nothing happens. But if I run sudo killall gpsd immediately position starts to appear on screen.
The same happens in my node app. I start receiving position as soon as I kill gpsd (after starting my program).
I'm using Garmin USB GPS 18x and a Jetson TX2 on Node v8.11.3. In my program I'm using node-gpsd to handle the GPS data.
gpsd
asked Aug 23 at 19:30
Vallo
1012
add a comment |Â
up vote
0
down vote
favorite
I can't really figure out how GPSD works. If I start gpsmon nothing happens. But if I run sudo killall gpsd immediately position starts to appear on screen.
The same happens in my node app. I start receiving position as soon as I kill gpsd (after starting my program).
I'm using Garmin USB GPS 18x and a Jetson TX2 on Node v8.11.3. In my program I'm using node-gpsd to handle the GPS data.
gpsd
asked Aug 23 at 19:30
Vallo
1012
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I can't really figure out how GPSD works. If I start gpsmon nothing happens. But if I run sudo killall gpsd immediately position starts to appear on screen.
The same happens in my node app. I start receiving position as soon as I kill gpsd (after starting my program).
I'm using Garmin USB GPS 18x and a Jetson TX2 on Node v8.11.3. In my program I'm using node-gpsd to handle the GPS data.
gpsd
asked Aug 23 at 19:30
Vallo
1012
I can't really figure out how GPSD works. If I start gpsmon nothing happens. But if I run sudo killall gpsd immediately position starts to appear on screen.
The same happens in my node app. I start receiving position as soon as I kill gpsd (after starting my program).
I'm using Garmin USB GPS 18x and a Jetson TX2 on Node v8.11.3. In my program I'm using node-gpsd to handle the GPS data.
gpsd
gpsd
asked Aug 23 at 19:30
Vallo
1012
asked Aug 23 at 19:30
Vallo
1012
asked Aug 23 at 19:30
Vallo
1012
asked Aug 23 at 19:30
Vallo
1012
asked Aug 23 at 19:30
Vallo
1012
1012
add a comment |Â
add a comment |Â
1 Answer
1
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votes
up vote
1
down vote
The gpsd deamon reads out the GPS-data coming via the serial interface and provides them to other applications via a socket on a specific port (default: port 2947).
The client program gpsmon can be run in one of two modes.
- as a client for
gpsdusing the socket provided bygpsd - in direct mode, reading out the data coming from the serial interface of the GPS device
Which of both modes you use is determined, with which arguments you start gpsmon.
I don't know, how you start gpsmon, but judging by your description, I assume you start gpsmon in direct mode and therefore only see data, once you kill gpsd and have gpsmon access the serial interface, which was before used by gpsd.
In order to use gpsmon as client for gpsd, please refer to the official documentation of gpsmon.
Regarding your node app:
It's just a guess, but I assume this app is not using the socket provided by gpsd, but wants to listen on the serial interface directly. Thus the behaviour you observe.
answered Aug 23 at 22:01
oh.dae.su
171118
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and rungpsmon localhost:2947i see the gps data. If I stopgpsmonand rungpsmon localhost:2947i see a blank screen and if I press enter i seetcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assumegpsmon localhost:2947means running gpsmon as client for gpsd, right?
– Vallo
Aug 24 at 12:08
Yes,gpsmon localhost:2947will run it as client for gpsd. In the setups, where I have been usinggpsdI never had an issue as you described. How do you stopgpsmon?
– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is ongpsmonside orgpsdside you could do the following test. After stoppinggpsmondoesgpsdstill work with other applications such ascgpsorxgps?
– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
 |Â
show 1 more comment
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
The gpsd deamon reads out the GPS-data coming via the serial interface and provides them to other applications via a socket on a specific port (default: port 2947).
The client program gpsmon can be run in one of two modes.
- as a client for
gpsdusing the socket provided bygpsd - in direct mode, reading out the data coming from the serial interface of the GPS device
Which of both modes you use is determined, with which arguments you start gpsmon.
I don't know, how you start gpsmon, but judging by your description, I assume you start gpsmon in direct mode and therefore only see data, once you kill gpsd and have gpsmon access the serial interface, which was before used by gpsd.
In order to use gpsmon as client for gpsd, please refer to the official documentation of gpsmon.
Regarding your node app:
It's just a guess, but I assume this app is not using the socket provided by gpsd, but wants to listen on the serial interface directly. Thus the behaviour you observe.
answered Aug 23 at 22:01
oh.dae.su
171118
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and rungpsmon localhost:2947i see the gps data. If I stopgpsmonand rungpsmon localhost:2947i see a blank screen and if I press enter i seetcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assumegpsmon localhost:2947means running gpsmon as client for gpsd, right?
– Vallo
Aug 24 at 12:08
Yes,gpsmon localhost:2947will run it as client for gpsd. In the setups, where I have been usinggpsdI never had an issue as you described. How do you stopgpsmon?
– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is ongpsmonside orgpsdside you could do the following test. After stoppinggpsmondoesgpsdstill work with other applications such ascgpsorxgps?
– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
 |Â
show 1 more comment
up vote
1
down vote
The gpsd deamon reads out the GPS-data coming via the serial interface and provides them to other applications via a socket on a specific port (default: port 2947).
The client program gpsmon can be run in one of two modes.
- as a client for
gpsdusing the socket provided bygpsd - in direct mode, reading out the data coming from the serial interface of the GPS device
Which of both modes you use is determined, with which arguments you start gpsmon.
I don't know, how you start gpsmon, but judging by your description, I assume you start gpsmon in direct mode and therefore only see data, once you kill gpsd and have gpsmon access the serial interface, which was before used by gpsd.
In order to use gpsmon as client for gpsd, please refer to the official documentation of gpsmon.
Regarding your node app:
It's just a guess, but I assume this app is not using the socket provided by gpsd, but wants to listen on the serial interface directly. Thus the behaviour you observe.
answered Aug 23 at 22:01
oh.dae.su
171118
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and rungpsmon localhost:2947i see the gps data. If I stopgpsmonand rungpsmon localhost:2947i see a blank screen and if I press enter i seetcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assumegpsmon localhost:2947means running gpsmon as client for gpsd, right?
– Vallo
Aug 24 at 12:08
Yes,gpsmon localhost:2947will run it as client for gpsd. In the setups, where I have been usinggpsdI never had an issue as you described. How do you stopgpsmon?
– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is ongpsmonside orgpsdside you could do the following test. After stoppinggpsmondoesgpsdstill work with other applications such ascgpsorxgps?
– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
 |Â
show 1 more comment
up vote
1
down vote
up vote
1
down vote
The gpsd deamon reads out the GPS-data coming via the serial interface and provides them to other applications via a socket on a specific port (default: port 2947).
The client program gpsmon can be run in one of two modes.
- as a client for
gpsdusing the socket provided bygpsd - in direct mode, reading out the data coming from the serial interface of the GPS device
Which of both modes you use is determined, with which arguments you start gpsmon.
I don't know, how you start gpsmon, but judging by your description, I assume you start gpsmon in direct mode and therefore only see data, once you kill gpsd and have gpsmon access the serial interface, which was before used by gpsd.
In order to use gpsmon as client for gpsd, please refer to the official documentation of gpsmon.
Regarding your node app:
It's just a guess, but I assume this app is not using the socket provided by gpsd, but wants to listen on the serial interface directly. Thus the behaviour you observe.
answered Aug 23 at 22:01
oh.dae.su
171118
The gpsd deamon reads out the GPS-data coming via the serial interface and provides them to other applications via a socket on a specific port (default: port 2947).
The client program gpsmon can be run in one of two modes.
- as a client for
gpsdusing the socket provided bygpsd - in direct mode, reading out the data coming from the serial interface of the GPS device
Which of both modes you use is determined, with which arguments you start gpsmon.
I don't know, how you start gpsmon, but judging by your description, I assume you start gpsmon in direct mode and therefore only see data, once you kill gpsd and have gpsmon access the serial interface, which was before used by gpsd.
In order to use gpsmon as client for gpsd, please refer to the official documentation of gpsmon.
Regarding your node app:
It's just a guess, but I assume this app is not using the socket provided by gpsd, but wants to listen on the serial interface directly. Thus the behaviour you observe.
answered Aug 23 at 22:01
oh.dae.su
171118
edited Aug 23 at 22:09
answered Aug 23 at 22:01
oh.dae.su
171118
answered Aug 23 at 22:01
oh.dae.su
171118
answered Aug 23 at 22:01
oh.dae.su
171118
171118
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and rungpsmon localhost:2947i see the gps data. If I stopgpsmonand rungpsmon localhost:2947i see a blank screen and if I press enter i seetcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assumegpsmon localhost:2947means running gpsmon as client for gpsd, right?
– Vallo
Aug 24 at 12:08
Yes,gpsmon localhost:2947will run it as client for gpsd. In the setups, where I have been usinggpsdI never had an issue as you described. How do you stopgpsmon?
– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is ongpsmonside orgpsdside you could do the following test. After stoppinggpsmondoesgpsdstill work with other applications such ascgpsorxgps?
– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
 |Â
show 1 more comment
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and rungpsmon localhost:2947i see the gps data. If I stopgpsmonand rungpsmon localhost:2947i see a blank screen and if I press enter i seetcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assumegpsmon localhost:2947means running gpsmon as client for gpsd, right?
– Vallo
Aug 24 at 12:08
Yes,gpsmon localhost:2947will run it as client for gpsd. In the setups, where I have been usinggpsdI never had an issue as you described. How do you stopgpsmon?
– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is ongpsmonside orgpsdside you could do the following test. After stoppinggpsmondoesgpsdstill work with other applications such ascgpsorxgps?
– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and run
gpsmon localhost:2947 i see the gps data. If I stop gpsmon and run gpsmon localhost:2947 i see a blank screen and if I press enter i see tcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assume gpsmon localhost:2947 means running gpsmon as client for gpsd, right?– Vallo
Aug 24 at 12:08
Thanks for your answer. I've reproduced the following scenario: If I start Jetson and run
gpsmon localhost:2947 i see the gps data. If I stop gpsmon and run gpsmon localhost:2947 i see a blank screen and if I press enter i see tcp://localhost:2947 Unknown device>. If I leave this screen and kill or restart gpsd, gpsmon automatically starts working again. I can't figure out how to reconnect to gpsd without killing or restarting it. I assume gpsmon localhost:2947 means running gpsmon as client for gpsd, right?– Vallo
Aug 24 at 12:08
Yes,
gpsmon localhost:2947 will run it as client for gpsd. In the setups, where I have been using gpsd I never had an issue as you described. How do you stop gpsmon?– oh.dae.su
Aug 24 at 20:09
Yes,
gpsmon localhost:2947 will run it as client for gpsd. In the setups, where I have been using gpsd I never had an issue as you described. How do you stop gpsmon?– oh.dae.su
Aug 24 at 20:09
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
ctrl + C. is this a wrong way?
– Vallo
Aug 27 at 11:17
no that's fine. In order to see, if the problem is on
gpsmon side or gpsd side you could do the following test. After stopping gpsmon does gpsd still work with other applications such as cgps or xgps?– oh.dae.su
Aug 27 at 20:50
no that's fine. In order to see, if the problem is on
gpsmon side or gpsd side you could do the following test. After stopping gpsmon does gpsd still work with other applications such as cgps or xgps?– oh.dae.su
Aug 27 at 20:50
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
No other application related to GPSD works until I kill GPSD. I recorded a short video showing this: youtu.be/puA0Vq9ARrM
– Vallo
Aug 28 at 13:43
 |Â
show 1 more comment
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