Tracking refers to recording position of an something continuously.

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11
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3answers
357 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: ...
10
votes
10answers
4k 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 ...
10
votes
1answer
683 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 ...
8
votes
4answers
1k 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 10-...
8
votes
2answers
335 views

How to derive vehicle paths from timestamped location data?

I've got a bunch of location data for snow plows. There's a unique id for every plow, a timestamp, and x & y coordinates. Instead of knowing where hundreds street plows were at one minute ...
8
votes
1answer
952 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 ...
7
votes
3answers
2k 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 ...
7
votes
2answers
2k 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
0answers
1k 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 ...
4
votes
2answers
958 views

Creating network simulation / temporal models for videos? [closed]

I know of ArcGIS Tracking analyst and QGIS Time Manager. I have a transportation network with time based schedule for buses. I will create time aware shapefiles from this data. Is it possible to ...
4
votes
1answer
639 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 ...
4
votes
3answers
327 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 ...
4
votes
1answer
923 views

How to create an exact tracking route from GPS data with animated icon?

Probably this is not purely GIS related question, its related to developing issues. I am just asking if there is any kind of suggestions from Gurus. I am building an tracking application where GPS ...
4
votes
1answer
582 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 ...
4
votes
1answer
281 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 ...
4
votes
1answer
91 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 ...
4
votes
0answers
137 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 ...
3
votes
2answers
87 views

How to rename several layers at the same time?

I have got some GPS tracks (MultiLineString). As I import them to QGIS, they look like this: I would like to merge them and to do so, I have to rename all of them like this (picture 2) otherwise an ...
3
votes
1answer
771 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.
3
votes
1answer
931 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 ...
3
votes
2answers
300 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 ...
3
votes
1answer
81 views

Does the mean of latitude and longitude make sense?

The problem setting: I have a time series of geolocation data, namely latitude and longitude. I want to downsampling the time series and don't know if taking mean value of latitude and longitude ...
3
votes
2answers
297 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 ...
3
votes
2answers
521 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 ...
3
votes
1answer
80 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. ...
3
votes
1answer
445 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 ...
3
votes
0answers
159 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 ...
3
votes
0answers
219 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 by....
3
votes
1answer
2k 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 detail....
2
votes
4answers
103 views

How do some companies receive GPS data from vehicles if GPS's can't send any data?

I know that some companies offer tracking services for vehicles such as live GPS tracking they can access any time, but as you can't use the GPS protocol to send any data i wonder how the do it... I ...
2
votes
2answers
379 views

Loading GPS information into map and track waypoints?

I am using QGIS 1.8 in Ubuntu 12.04. I am working with Robot 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
87 views

Create GPX track in R. writeOGR function

I have a gpx file where someone exported two different activities in two separate locations to a single track. I need to split them and avoid getting the erroneous line in the track layer that ...
2
votes
1answer
35 views

How can I match Geolife traces using TrackMatching or similar tools?

I am working on route prediction and I decide to use realistic trace of moving object, I have choose geolife dataset it is composed of 278 users and every user has its trips presented in GPS or GPX I ...
2
votes
2answers
1k 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 ...
2
votes
2answers
572 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 ...
2
votes
1answer
474 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? ...
2
votes
0answers
306 views

MongoDB to store vehicle tracking information

I am building an app similar to Uber for tracking vehicles. Since the update frequency is so high (accounting for several users), I want to know the general practices involved for making writes faster ...
2
votes
3answers
1k 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: #355488020131816##...
1
vote
3answers
140 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 accuracy....
1
vote
1answer
63 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. ...
1
vote
2answers
548 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 ...
1
vote
1answer
364 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 ...
1
vote
1answer
336 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
948 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 ...
1
vote
1answer
470 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 ...
1
vote
0answers
23 views

How to export dynamic track (video) from QGIS?

Is it possible to export a file video with QGIS with a dynamic track from point A to point B? I need something like a presentation of a race where a dot is moving along the track from the start to ...
1
vote
0answers
26 views

How to know where views are being generated from in CartoDB?

I see in my dashboard that I can hover over a map and see how much it is being viewed. Many services, like mapbox and even youtube show you where your views are being generated from or perhaps it just ...
1
vote
0answers
24 views

Filter GPS tracks to determine “Moving Time”

I am working with GPS tracks of outdoor activities, think cycling, running, hiking. These activities often have "rest periods" where people take a break, wait at traffic lights, or just stopped their ...
1
vote
0answers
97 views

Geofence and GPS-Tracking in QGIS

What is the easiest possibility to create a geofence and to track if subjects cross the fence? I assume the fence is a simple polygon vector? What do I need for the cars? GPS data set? GPS layer?
1
vote
1answer
248 views

Database Editor Tracking Time Stamp Issue

I have Esri Tech Support looking into this but I thought I would post it here too. I have a File Geodatabase with Editor Tracking Enabled. The date is fine but the time stamp for creation and edits ...