Articles in the GSM Localizer without GPS Category
Cell track, Featured, GSM Localizer without GPS »
Discover how to find the coordinate from the GSM cells!!
The PHP code to find the coordinates from GSM cells
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Tracking cell by Boris Landoni Example</title>
<?php
function geturl()
{
if ($_REQUEST["myl"] != "") {
$temp = split(":", $_REQUEST["myl"]);
$mcc = substr("00000000".($temp[0]),-8);
$mnc = substr("00000000".($temp[1]),-8);
$lac = substr("00000000".($temp[2]),-8);
…
Featured, GSM Localizer without GPS »
It’s no the first time that we present a localizer without GPS. We remake the old device with the cheaper SimCom module SIM900. In the previous post we present the GSM section and now we can present the complete localizator.
Introduction
This system allows for localization without directly using GPS technology; we are able to locate the desired object fairly precisely by …
Featured, GSM Localizer without GPS, Headline »
Download the article
Do you still think you need GPS to know where a person or vehicle is? Well, here is some news for you: by using cellular network data and properly querying Google, even a simple GSM module is able to determine one’s position, with a fairly acceptable error margin.
Although so far all localization …
Featured, GSM Localizer without GPS, Headline »
Regardless of how Google has compiled its database, once we discovered how cell phones using Google Maps Mobile send their requests, we immediately thought of employing that functionality to build a specific remote localizer, which, unlike those that have been proposed so far, relies solely on GSM/GPRS for its radio connection, rather than use a GPS receiver.
Well, here it is! …
Featured, GSM Localizer without GPS, Headline »
The module used in our localizer is the Enabler IIIG GSM0308 by Enfora, one of the smallest yet best performing modules of this type currently available. The device, which utilizes a chipset made by Texas Instruments, is but 1.06 x 1.10 inches, is a quad-band that works both in Europe and the US, and has all the functions needed to …
Featured, GSM Localizer without GPS »
In order to be able to associate a GSM cell with its geographic coordinates, we utilize a Google Maps Mobile function, which is not documented, though. Before doing this, however, we need to know which cell the remote GSM device is connected to, that is, we need information regarding MCC, MNC, LAC, and CID. To obtain the data we need, …
Featured, GSM Localizer without GPS, Headline »
The circuit our localizer is based on consists only of a quad-band GSM/GPRS module interfaced with a a microchip microcontroller which, after initializing the I/Os and UARTs it has at its disposal, puts the main program in a loop waiting for some event, which could be the arrival of an SMS or someone pressing the button P1 (that is, the …
Featured, GSM Localizer without GPS, Headline »
Our localizer is definitely simple, yet it must be built with care, as all of its components are SMD. Once the two-sided board is ready, be sure you have a very fine-pointed welder of up to 20 watts and a 0.02-inch-diametered (possibly, even smaller) welding thread. First of all, take care of the microcontroller; solder a couple of stems opposite …
Featured, GSM Localizer without GPS, Headline »
All configurations can be set remotely using any cell phone; what follows is a description of how settings and commands work. Let us start with the list of numbers that can be used to request location data: there can be up to eight numbers –the same numbers to which the localizer sends SMS messages containing location data. Before continuing, let …
