Archive for the ‘Tracking Technologies’ Category

Duplicate GPS Devices Produce an Accidental Art

Thursday, January 30th, 2014

What an epic view as two GPS devices simultaneously pumping data back to data server and the track displayed back on the map. These locations data will be displayed as a zig-zagging track. Any comments, what you guys called this situation?

$20 GPS/GLONASS/Beidou Receiver

Sunday, January 19th, 2014

GPS Module

Sticking a GPS module in a project has been a common occurrence for a while now, whether it be for a reverse geocache or for a drone telemetry system. These GPS modules are expensive, though, and they only listen in on GPS satellites – not the Russian GLONASS satellites or the Chinese Beidou satellites. NavSpark has the capability to listen to all these positioning systems, all while being an Arduino-compatible board that costs about $20.

Inside the NavSpark is a 32-bit microcontroller core (no, not ARM. LEON) with 1 MB of Flash 212kB of RAM, and a whole lot of horsepower. Tacked onto this core is a GPS unit that’s capable of listening in on GPS, GPS and GLONASS, or GPS and Beidou signals.

On paper, it’s an extremely impressive board for any application that needs any sort of global positioning and a powerful microcontroller. There’s also the option of using two of these boards and active antennas to capture carrier phase information, bringing the accuracy of this setup down to a few centimeters. Very cool, indeed.

Source: Hack A Day

Israeli Drone Pilots Made Their Life-and-Death Choices Over Gaza, and how?

Saturday, November 24th, 2012

A Heron drone at the Palmahim air base in Israel in December of 2011. Photo: AP/Dan Balilty

The latest round of fighting between Israel and Hamas has settled into an uneasy ceasefire. But that won’t stop Israel’s drones from filling the skies over Gaza. In this 2009 story, written during the final days of the last Israel-Hamas  conflict, we took a look at how one drone pilot grappled with the moral choices that came with remotely spying, and ordering death, from above.

Life or Death choices will never been easier with judgement done through small screen. how these guys, manage doing these task properly or most importantly humanly. Guess, wired have this story covered here. Come on, take a look.

Courtesy: Wired.com

 

GPS Units Disable Themselves If They Go Faster Than 1,200 MPH

Saturday, August 13th, 2011

This is somehow a legacy border, but anyone out there have busted this fact? – GPS units disable themselves if they go faster than 1,200 mph and if they go above 60,000 feet…

GPS module

In GPS technology, the phrasing “COCOM Limits” is also used to refer to a limit placed to GPS tracking devices that should disable tracking when the device realizes itself to be moving faster than 1,000 knots (1,900 km/h; 1,200 mph) at an altitude higher than 60,000 feet (18,000 m).This was intended to avoid the use of GPS in intercontinental ballistic missile-like applications.

Some manufacturers apply this limit literally (disable when both limits are reached), other manufacturers disable tracking when a single limit is reached.

This limit is a frequent obstacle encountered, if not discussed, among hobbyists seeking to make high altitude balloons and of course would be a problem for homemade space programs.

courtesy: wikipedia

A GPS without GPS

Monday, July 11th, 2011

gsmlocalizerWow, that sounds weird. It’s actually a mini GSM-based localizer without any GPS devices attached. It’s an old device with the cheaper SimCom module SIM900.  Here is a complete working GSM localizator which is pretty cheap and small too.

As introduction, this system allows localization without directly using GPS technology; we are able to locate the desired object fairly precisely by using database availability together with the geographic position of the cells themselves. In some country the cell coordinates are not publicly known (i.e. in Italy). If so, where do we find such data? Through Google Maps… Google has been able to store billions of data regarding the location of its clients’ cell phones. But how does GSM localization work? The radio mobile network is made up of a number of adjacent radio cells, each of which is characterized by an identifier consisting of four data: a progressive number (Cell ID), a code related to the area in which that given cell is (LAC, or Local Area Code), the code of national network to which the cell belongs (MCC, an acronym for  Mobile Country Code), and finally the company code (MNC, or Mobile Network Code), which obviously identifies the phone company itself. For this reason, once a cell name and coordinates are known, and considering the maximum distance allowed between this cell and a phone  before the phone connects to a new cell, it is possible to find out, approximately, the most distant position of the phone itself. For example, if the maximum distance has been determined to be one mile, the cell phone can be within a one-mile radius. It can be deduced that the more cells are found in a given area, the more precisely one can determine where the phone is located (up to 200-350 feet). The idea of employing only a GSM device to build a remote localization system occurred to us when we realized that Google Maps Mobile, which had been conceived to allow smartphones equipped with a GPS receiver to use Google for satellite navigation, was extended to all cell phones, as long as they were able to support GPRS or UMTS data.  Naturally, this method allows but for a rough estimate: determining the precise position of the cell phone hinges on data regarding the coverage of a given cell which can only be provided by the Google server.

DataCell

The circuit

Compared to traditional localizers based on GPS, this device presents many advantages, primarily because it is lighter and less bulky, has a cost lesser and greater autonomy to exercise. This means that about one battery lithium ion, such as 1 Ah, our tracker can be in operation for several days (it all depends on the number of SMS that have to do). A locator based on cellular network may answare more immediately: the GPS receiver may take several minutes to determine its position. Our tracker works battery and thus can be brought on by people who may have the need to ask help or be tracked, but also placed on board motor vehicles (without installation) or simply introduced in goods in transit. To avoid unnecessarily draining the battery, the localizator provides its position via SMS, on requesto with a simple phone call. Among the functions implemented there is the SOS: By pressing the button the localizator sends a text message asking for help, containing the coordinates of position, the sending can be done to a maximum of eight thelephone numbers. When queried or with the autoreport function, sends an SMS with the localization.To know the location of remote device must send an SMS request cell is connected and sends a request (via GPRS) to Google’s site, the latter responds with the coordinates and the figure for the precision. Everything happens in seconds.

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Well, you can get hell of these stuff from link provided afterward. Design files and the firmware are included. A fun stuff to experiment with at your disposal. Mini GSM localizer without GPS at open-electronics.org.

All images are courtesy of open-electronics.org

Japan setting out to get its own GPS off the ground

Sunday, July 3rd, 2011

japan-gps.jpgHow’s your Sunday? ah-ha, here some GPS-related article for your weekend technological feed, have a nice weekend.

The Japanese government – with the the assistance of private firms – is ramping up research on a Japanese version of the Global Positioning System in a bid to turn satellite-based technologies into a key export, the Nikkei reports. As far as we know,  it’s already runs. But turning it into an export – is really a good idea to me.

Plans are afoot to conduct joint research and development on this – nine firms and two organisations are slated to participate in a study group to be formed by the Ministry of Economy, Trade and Industry at the end of the month, with an aim to come up with new services in five years, the report says.

The venture will include companies such as NEC and Mitsubishi Electric Corp, which develop satellites or ground facilities, as well as those with a broad range of businesses, including transport systems, logistics and machinery.Having launched a quasi-zenith positioning satellite last September, the addition of two or three more satellites will enable an around-the-clock service, though specific plans for the second satellite haven’t been drawn up yet.

The Japanese satellite system is designed to supplement the GPS currently operated by the US, and is meant to cover the region, including that of Southeast Asia and Australia.A domestic GPS would yield many benefits beyond just making and launching satellites – with a projection that the overall market will grow from around four trillion yen in 2008 to roughly 10 trillion yen in 2013, a wide range of infrastructure-related fields will stand to grow as well.

Courtesy: paultan

Related:  Quasi-Zenith Satellite System, QZSS

Car eye-tracking system wakes you before you crash

Sunday, November 28th, 2010

Car-dashboard-eyetracker

Falling asleep while at the helm of a few tons of metal and plastic going 60 miles-per-hour doesn’t end well, but there’s little the modern car can do about it. If it, say, stopped itself suddenly it could become a hazard to other drivers. The Eyetracker system knows it’s not on the car, though — it’s on you to drive safe.

With that in mind, the German-based Eyetracker watches the driver’s face for telltale signs of sleepiness, and issues a warning if it looks like you’re about to doze off. The system uses two cameras to keep tabs on the spatial positioning of the pupil and the line of vision — which would waver if you’re about to pass out. In other words, it makes sure your eyes are on the road.

What’s really exciting here is how small and easy to install the system is, which could see it put to use in ways other than keeping drivers awake (a noble cause, to be sure). Despite the picture above, the Eyetracker doesn’t need a laptop to function, and its control unit is the size of a matchbox. What’s more, it can be installed in any car as it handles all of its own processing itself.

Beyond just the automobile world, the Eyetacker could aid in medical operations where being able to keep on eye on — well — an eye is essential, or even in video games, serving as a head-tracker that lets the player look around without the aid of a physical controller.

Source: Fraunhofer

It’s an Arduino-based speed detector

Saturday, November 6th, 2010

Flash / Arduino Based Speed Detector from Mike Chambers on Vimeo.

Mike Chambers built this excellent looking arduino-based speed detector. An Arduino measures the time it takes an object to travel between two points, which is then relayed back to a computer (or smart phone), where it is converted into average speed and presented in a clear manner. The concept for the project is simple, however he wins big points for putting it all together into a working package.

courtesy: Arduino Blog

These Tiny Magnetometers Detect Fields Generated by Human Heart!

Sunday, October 24th, 2010

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How can i imagine this tiny and ‘poor’ little thing can help a human life? hmm… I’m still thinking.

At the National Institute of Standards and Technology (NIST) scientists have been working on microfabricated atomic magnetometers capable of detecting faint magnetic fields. The devices, about 1cm3 in size, were taken to the Physikalisch Technische Bundesanstalt (PTB) in Berlin, Germany where supposedly resides the most magnetically isolated building in the world. Using the tiny magnetometers, investigators were able to detect the magnetic signature of human heartbeats, perhaps opening up the possibility for a new modality to complement ECG.

Courtesy of MedGadget.com

A brief about Smart Home

Thursday, October 14th, 2010

Smart Home is an intelligent and easy-to-use home management system that offers a richer set of home services by allowing appliances to interact with each other seamlessly. Capabilities of appliances are used as “Lego Kits” that can be mixed and matched to provide different home services for security, well-being, energy management and entertainment.

  • Built upon open communication UPnP standards.
  • “Lego Kits” to provide services to the home user.
  • A single user interface to manage appliances and customize home services.

Brief Introduction
The Smart Home project’s objective is to develop a reference implementation of a smart home system. This implementation utilities the Uninersal Plug n Play (UPnP) standard that has been adopted by major consumer electronic (CE) manufacturers as the emerging standard for device interoperability.

UPnP is an open standard (www.upnp.org) and its adoption by the CE industry consortium such as the Digital Living Network Alliance (DLNA) (www.dlna.org) augurs well for the end consumer. Home solutions (devices, system etc) will no longer be stovepipe (proprietary, single brand) in nature, as an open standard will ensure a common playing field and consumers will be free to choose amongst the various brand offerings.

Motivation
The following set of current problems/opportunities form the basis of the motivation underlying this project.

  • Devices are standalone in nature and typically do not communicate with other devices.
  • Due to the above (1), devices cannot cooperate/collaborate to jointly provide a richer set of services to the consumer.
  • Devices are difficult to setup and configure.
  • Even if (3) was made simple, it is difficult to pair devices and provision services.
  • Home networks are becoming more pervasive. Such networks are not just confined to ICT equipments (computers, printers, access point etc). Typical home devices/equipment such as lamps, stereo set, television etc will be part of the home network.