Hi,
Following is the Architecture for Stationery alert requirement.
Use case: An alert should be generated if an object stays in a specific
place for some specific time
User will be providing the stationery position, its radius and the time.
Then an alert will be given if the object satisfies f
Attaching the document.
On Wed, Oct 22, 2014 at 6:50 PM, Damith Wickramasinghe
wrote:
> Hi,
>
> Following is the Architecture for Stationery alert requirement.
>
> Use case: An alert should be generated if an object stays in a specific
> place for some specific time
>
> User will be providing th
The stationary alert need not only be defined on a stationery circle but
the user should also be able to define a polygon instead. So make it as:
An area where the the stationary alert is valid (here we can pass the
geo-fence ), and then the time period.
Suho
On Wed, Oct 22, 2014 at 9:30 AM, Da
Hi,
I thought the use case as the below image shown. I will add the necessary.
Thank you.
Regards,
Damith.
On Wed, Oct 22, 2014 at 7:46 PM, Sriskandarajah Suhothayan
wrote:
> The stationary alert need not only be defined on a stationery circle but
> the user should also be able to define a p
Yes, I believe the original use case was done for circles but i think that
too restrictive.
Thanks
Suho
On Wed, Oct 22, 2014 at 1:20 PM, Damith Wickramasinghe
wrote:
> Hi,
>
> I thought the use case as the below image shown. I will add the necessary.
> Thank you.
>
> Regards,
> Damith.
>
>
> On
Hi Damith,
When you say, user provides his Geo stationary position, how is the Geo
stationary position/entering the Geo-fence captured? Is it through some GPS
enabled device? If so, when setting the radius for the geo-fence, GPS
fluctuation has to be considered, in the client side. Are you handling
Hi Inosh,
Yes it is done through a GPS enabled device. We are not handling anything
at Client side. As for the fluctuations, we are going to use the concept
Kalman filtering which will smooth the events.
Thanks,
Damith.
On Fri, Oct 24, 2014 at 8:43 AM, Inosh Perera wrote:
> Hi Damith,
> When
Hi Damith,
Yes, Using Kalman filter in the server-side will smoothen the results. Best
approach is using sensor fusion on client-side. Here[1] is an example of
Java Kalman filter implementation.
[1]
https://code.google.com/p/efficient-java-matrix-library/wiki/KalmanFilterExamples
Regards,
Inosh
Hi Inosh,
Thanks for the resource. Doesn't sensor fusion use Kalman filter? And why
do you say its the best approach? can you please elaborate on that?
Regards,
Damith.
On Fri, Oct 24, 2014 at 11:07 AM, Inosh Perera wrote:
> Hi Damith,
> Yes, Using Kalman filter in the server-side will smoothe
Hi Damith,
If you don't have access to the client-side, using Kalman filter is the
best approach. For example, if you leave a GPS device stationary, the GPS
reading fluctuate, though it doesn't move. Typically, this is about 20m
inaccuracy. To avoid this, we look at a combination of accelerometer a
Hi Inosh,
Yes as for now we are not handling anything at client side. I will look
into that Thanks.
Regards,
Damith.
On Fri, Oct 24, 2014 at 12:00 PM, Inosh Perera wrote:
> Hi Damith,
> If you don't have access to the client-side, using Kalman filter is the
> best approach. For example, if you
Hi Damith, Suho,
Two questions came into my mind.
1. Is it possible to capture same event by two geostationary execution
plans (two plans overlap), if then the duplicate events may occur in UI
MAP. How to validate and remove those ?
2. User input the time of object exists -: I think this time i
On Sun, Oct 26, 2014 at 1:33 PM, Manoj Gunawardena wrote:
> Hi Damith, Suho,
>
> Hi Manoj,
>
> Two questions came into my mind.
>
> 1. Is it possible to capture same event by two geostationary execution
> plans (two plans overlap), if then the duplicate events may occur in UI
> MAP. How to vali
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