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Re: GPSD For Real Time Application

From: Bernd Zeimetz
Subject: Re: GPSD For Real Time Application
Date: Sun, 29 Dec 2019 17:22:32 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 12/29/19 4:48 PM, Kashyap Gada wrote:
> Dear Bernd,
> How can we mix gyro data with GPS to get better location?

Well, a programming language of your choice and math?

> Vehicle Locomotive, Can get wheel tick.

Then you should be able to get the current speed in a very exact way
without gps. If it is a locomotive, I'd also assume that it is running
on rails. As the position of railways is known in advance, you can use
that information in the calculation of your position.

> What can additional sensors be?

As I've mentioned, a gyrosensor.
Or speed sensors on wheels/motor whatever gives an exact speed.

> Regards
> On Sun, Dec 29, 2019 at 9:11 PM Bernd Zeimetz <address@hidden
> <mailto:address@hidden>> wrote:
>     Hi,
>     On 12/27/19 7:31 PM, Kashyap Gada wrote:
>     > My application -
>     > Record some events/sensor readings in a moving vehicle 100MPH using a
>     > Ublox Neo-M8U GPS. Accuracy required is better that 5 meters.
>     additionally to the comments you've got so far:
>     I think you should at least have an additional gyro sensor which gives
>     you some movement data to combine with what you've got from the GPS.
>     Also if you have other sensors in your vehicle - use them.
>     You did not mention which kind of vehicle and what you are doing with it
>     - but if you are not 100% sure that you'll always have good gps
>     reception (or that you are not close to chinese pig farms with fake gps
>     transmitters), you *will* have to use additional sensors.
>     -- 
>      Bernd Zeimetz                            Debian GNU/Linux Developer
>      GPG Fingerprint: ECA1 E3F2 8E11 2432 D485  DD95 EB36 171A 6FF9 435F

 Bernd Zeimetz                            Debian GNU/Linux Developer                      
 GPG Fingerprint: ECA1 E3F2 8E11 2432 D485  DD95 EB36 171A 6FF9 435F

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