Tagged Questions

Tracking refers to recording position of an something continuously.

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1answer
30 views

In arcmap how to modify time value in editor tracking fields

In my map, I have several layers enable editor tracking, but the time zone is not the same as our location time zone (GMT +8). When I try to use time slider to modify the time, I find the time slider ...
0
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0answers
8 views

proper way to export editor tracking information

I have several layers use editor tracking to trace the editing actions. Although I can get the editor tracking information through attribute table of individual layer, use want to use a button to ...
3
votes
1answer
36 views

Exporting massive gps tracks to a map

I have about 1000 vehicle equiped by a GPS sensor and 3G connection. Each vehicle feeds a csv file -using 3G connection- with its current location every 5 sec. Each vehicle have its own CSV file. ...
2
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0answers
68 views

How do I statistically compare positions from two track datasets?

I have two datasets with positions that I need to compare. One would be the "observed" positions (someone took the GPS positions manually) and the other one was calculated using a software. To use ...
4
votes
3answers
146 views

How to compute the outline of multiple tracks?

I have multiple gps tracks with depth data gathered from the lake. The tracks are overlapping/intersecting. I want to get an outline polygon. I have a multi-line shp. I've tried to diffuse it in qgis ...
0
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0answers
36 views

QGIS developer help: custom icon

I'm a new QGIS developer and I have some difficulties to implement the follow feature: I want to track a live gps receiver and draw a custom icon (like png) in a map layer. I'm using a rubber band ...
0
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0answers
20 views

Changing tracks to vectors in a grid

This is a version of a question that I posted on the GRASS list, but I didn't get any suggestions there. I would like to overlay a grid (cell size about 500 m x 500m) over an animal track created from ...
0
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2answers
54 views

Identify circuits/loops in GPS track data

This question will be naive and uneducated, but I gotta start my research somewhere, so I'll ask for references and pointers... Let's say you have a GPS time series with a set of lat/long coordinates ...
0
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0answers
138 views

Java script vehicle tracking application

I am using ArcGIS and Server to build n application to track vehicles via tablet GPS in the vehicles. My original plan was to use a feature class to store point location and then display the most ...
0
votes
1answer
98 views

Add GPS tracks directly to a PostGIS table

Disclaimer: I am a total GIS newb and I have a use case I have not seen elsewhere. Background: I drive country roads looking for old building, cemeteries, school houses, etc and I record the ...
4
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0answers
86 views

GPS tracking using smartphones [closed]

We're looking to launch a study that examines spatial behaviour on a university campus. Given the near ubiquity of smartphones among our study population, we're excited about the possibility of using ...
2
votes
2answers
92 views

Converted GPX file has null values in open attributes

I'm an absolute newbie but I think I'm doing this right. I've got a bunch of .fit files from my garmin. I can use GPSBabel to manually convert these to GPX XML and the map looks fine after the ...
2
votes
2answers
466 views

Android app: GPS Logger and POI recorder, with offline map

I am looking for a good app that can do one or many of my below listed requirements. They are listed with the most fundamental functions first. Preferably the app can do all of it, but it should at ...
0
votes
0answers
25 views

What is the format of this Tracker String?

I've got a client, who has plenty of Chinese trackers and he wants to use them in our vehicle tracking portal. He has no idea of the company or the structure of Tracker String. I have little idea ...
0
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0answers
83 views

iPhone GPS Tracker app that INCLUDES timestamps?

I simply need to import GPS tracks into Google Earth that come in with time data so that I can use the Google Earth time slider and animate the track. I can do this with Android using "My Tracks". I ...
1
vote
1answer
275 views

Most Efficient method of Storing Point Data in PostGres/PostGIS to later re-create a track

I am trying to determine the most efficient way to store point data in PostGIS to later re-create tracks Criteria: 1 second updates 100- 200 tracks active at any one time 1 hour max ...
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0answers
28 views

How to find & send alert SMS for next bus stop in a GPS tracking system (PostGIS DB)? [duplicate]

In my gps tracking system, I have got 5 Stops for a vehicle. Whenever the bus reaches stop 1, the passengers at stop 2 should get an SMS alert. And in the same way for the sops followed by. Stops ...
3
votes
0answers
120 views

How to determine and send alert SMS for next bus stop in a GPS tracking system?

In my gps tracking system (PHP/MySql) I have got 5 Stops for a vehicle. Whenever the bus reaches stop 1, the passengers at stop 2 should get an SMS alert. And in the same way for the sops followed ...
0
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0answers
43 views

How can i show online temporal data using Tracking Analyst?

I have online GPS tracking data . I'd like to show these data in webgis . I'm using ArcGIS Silverlight API . I used tracking analyst in Arcmap for offline temporal data but not online data. Is there ...
1
vote
1answer
156 views

How to use Mapserver+Openstreetmap for tracking service effectively?

I have got Asset tracking installations for many clients. The availability of GIS map data for every client location seems to be the tough part. I have got a MapServer WMS installation. Can I use OSM ...
2
votes
3answers
367 views

What format is this GPS tracking string?

I am receiving tracking data from a device and I am not sure what is the format/standard of this string in order to properly process the variables, this is a sample string received: ...
1
vote
3answers
109 views

Is there demand for a higher resolution alternative to GPS tracking in the GIS market?

If there was an alternative to GPS that provided higher resolution tracking, what applications would there be for it in GIS? Note that this means higher resolution, but not necessarily higher ...
1
vote
1answer
93 views

How can I calculate the average speed in various legs of a bus route?

I'm working on analyzing NYC MTA Bus traffic data. There are numerous buses traveling along the route, emitting gps data at random locations. I have about 30k records with bus_line, vehicle_id, ...
1
vote
1answer
505 views

Linux Client for OpenGTS server

I've installed an OpenGTS server and successfully linked it with the GPS2OpenGTS_Pro application for android. The buses I'm tracking offer 3G with a wireless AP, however whenever the bus stops, the ...
3
votes
1answer
939 views

Build a website to track GPS signals [closed]

I need to build a solution that allows me to track cellphones/tablets and display on a visual map. I think there are two parts, one is understanding the general architecture. The other is more ...
2
votes
2answers
211 views

Parsing raw data from GPS tracker

As a side project I've been hacking together a simple tracking system for my wayward dog using a cheap GPS / GPRS tracker. I've successfully got it transmitting data to my server over GPRS but while ...
3
votes
2answers
93 views

How best to measure average speed?

I searched through previous questions & didn't find an answer to this one. At first glance it might look like a straightforward math question & off-topic, but it is related to a fleet ...
1
vote
1answer
256 views

How to improve accuracy or extrapolate missing or bad GPS points

Is there an easy to use freeware tool to postprocess my location data, in order to correct 1) location errors (or improve accuracy not based on differential GPS correction) and 2) deal with missing ...
0
votes
1answer
253 views

Tutorial datasets of ArcGIS 9.3 Tracking Analyst [closed]

I am a beginner in ArcGIS Tracking Analyst Extension. I need to do the tutorial exercises of Tracking Analyst Tutorial for understanding Tracking Analyst. Can anyone please email me the Tracking ...
0
votes
2answers
218 views

how to load gps information in my map and track way points?

i am using QGIS 1.8 in ubuntu 12.04 . i am working with ROBOTIC OPERATING SYSTEM(ROS) and QGIS simultaneously . My ROS system is connected to LIDAR(sensors) that will publish gps message so i could ...
2
votes
1answer
171 views

ArcGIS online live data

Does ArcGIS online have the capability of providing real time (live) tracking of assets? If I have a staff member with a cell phone can ArcGIS online show me where that person is at any given moment? ...
4
votes
1answer
300 views

GPS tracking and Web mapping?

We are developing a tracking software and we are the stage where we test the reliability of our location stigma on the following web-maps Google Map Nokia HERE Open Street Map (OSM) We observe ...
3
votes
1answer
227 views

QGIS: plotting real time lat/lon GPS input on a different projection

I'm trying to plot realtime GPS over a satellite image in QGIS 1.8. The GPS data is coming in as NMEA lat/lon from a Garmin Etrex. This works when the image is in WGS84 lat/lon projection and ...
0
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0answers
90 views

Is there a JavaScript SDK for Vehicle Tracking?

Does exist a JavaScript SDK for Vehicle Tracking? Like this one:Map Suite
6
votes
0answers
436 views

Indoor positioning system hardware [closed]

I'm a software developer, dont know much about the hardware specifications and dont know where to start. (Even not sure is that the right stackexchange I should ask this question.) So, I want to know ...
1
vote
1answer
58 views

What is the best way to construct a SQL query that returns the block name for each bus point as it travels?

I have two datasets in postgres; 1) a bunch of points that represent bus locations 2) city block polygons. Each bus has a unique ID and each block polygon has a field that has the block name in it. ...
3
votes
1answer
322 views

Using PostGIS for a large trajectory dataset

I have a spatial trajectory dataset which basically contains about 10E6 (lat,lon,time)-tuples, grouped together by an identifier so they form trajectories. Currently, SQLite is used to store the raw ...
7
votes
2answers
769 views

vehicle tracking system in postgresql performance

I am developing the vehicle tracking system using postgresql. When the data comes from device to my DB server, I am calling the following functions after inserting data into log table. Distance ...
7
votes
3answers
1k views

Register and display real time tracking of my smartphone (gps) on a map

I have 2 smartphones (android galaxy and iphone) and i would like to display the position, according to the gps coordinates, on a map. Is there any app to download or any kind of service where i ...
4
votes
2answers
210 views

ArcGIS Tracking Server

I want to create a vehicle tracking application. I have ArcGIS Desktop and ArcGIS Server. Can I create application for real time with these two software? I saw in ESRI site another server called ...
1
vote
0answers
60 views

“Flight recorder” for automobiles/motorcycles? [closed]

As I sat in traffic court last week for a non-moving violation, many of the cases were clearly he said/she said issues.. particularly with stop sign violations. I can easily see how this specific ...
11
votes
2answers
315 views

Looking for ready tools to display real-time positions online

we want to show that in a big city like Palermo, cycling can be the fastest tool (and at the same time the most ecological). We will give 4 smartphones to 4 users, and there will be 4 ways to move: ...
4
votes
1answer
229 views

Given a known batch of mobile-obtained gps data with timestamps, what algorithms can be used to clean it?

I'm working on the backend for an iOS/Android app that collects locations every hour and syncs with the server every three hours. The mobile apps themselves are not under my control and so I can't ...
6
votes
4answers
533 views

How to record tracks finer than 10-30cm resolution (possibly using an iPhone)?

I am trying to record tracks at a much finer scale than is possibly with GPS but hopefully using something simple and cheap, ideally an iPhone. The resolution for track data I am after is around ...
2
votes
1answer
350 views

Triangulation Algorithm

I want to track device using triangulation algorithm. It works fine with 3 BTS stations at 3 different locations. What should I do if only 1 or 2 BTS exists.
4
votes
1answer
82 views

Different ways to publish media-enhanced route/trail information to mobile users

I'm looking for some different approaches that a non-profit I'm helping could use to publish information about some tourism routes. Each route is 1-2 tracks, with some historical background ...
8
votes
1answer
593 views

Cleaning GPS track data

I have data captured with a GPS tracking unit. Some track have bad/cold starts and the only way to determine the track quality is by using the altitude. Unfortunately I don't have the raw GPS data and ...
9
votes
9answers
1k views

Fleet tracking software options

Before I sit down and make the mistake of start writing my own, I wanted to know my options for good, modern, fleet tracking options that are not too expensive. What I am looking for is something that ...
3
votes
2answers
409 views

How to get the layers of my project to show while tracking with GPS?

I've been using/testing several versions of various GIS software and run into occasional issues. Right now, my biggest with QGIS is with GPS connection/downloading from/tracking. These are all ...
10
votes
1answer
542 views

Overview of GPS tracking system technologies

Background: I've been asked by a friend to estimate the cost of setting up a GPS tracking system for a small fleet of buses, so we can do real time reporting of bus locations via a webmap. In my ...