GPS design changes cameraphone power consumption - 1% !!

New GPS Chip News - 1/100th the power requirements

Air Semiconductor, a fabless GPS semiconductor company formed in May 2006, has announced today its first product, Airwave1, that deliver low power continuous GPS tracking in order to solve the time to first fix issue for non-connected consumer electronics devices. Air Semiconductor claims its Airwave-1 chip consumes “only 1% of power required by current GPS solutions”.

This solution could make GPS an integrateable solution for just about any thing.... Now if it is accuracte to 2, 8, 16 meters?

More on Blue2CAN - Camera Area Network for Nikon

More on BLue2CAN - Camera Area Network for Nikon

The Blue2CAN connects automatically (and silently) to ANY Bluetooth GPS in range (within 10 m of it's location) The idea is that in the rare event there is more than one Bluetooth GPS in range that any one will do as it's "close enough". However these receivers only connect to one device at a time, so the GPS device must be on, in range, and NOT connected to something else, it's most likely yours. If the GPS is separated from the camera Blue2CAN loses the connection and starts searching again. If the same one, or a different one comes it range it uses it. The advantage is that it is AUTOMATIC, and therefore easy to use.

Connection speed is not really a problem because the Blue2CAN stays connected to the GPS as long as the GPS receiver is on, even when the camera is turned off (yes, Blue2CAN gets power from the camera even when the camera is off). In this way the GPS data is available immediately when the camera is switched on. Note that it is best to turn the camera off when you’re not shooting because the GPS does hold the meter on (Nikon's design) and the meter takes quite a lot of power. Fortunately Bluetooth takes very little power so it does not put much of a drain on the camera battery in any case. The drain is so small that the D200 camera battery can keep the Bluetooth radio working for more than 25 days (and nights). GPS takes a LOT more power, so the batteries in the Bluetooth GPS device will probably not last more than about 14 hours.

If the Blue2CAN is not connected to a GPS when the camera is turned off it will search for 10 minutes longer, if no GPS if found it will turn itself off. It will start searching again when the camera is turned on, and takes about 5 seconds to connect in this case. It usually takes GPS receivers at least this long to get a fix from power up, so when the GPS data is available the Bluetooth is already connected. I'm sorry if this description was too complicated, but the complexity was necessary in the implementation to both manage power and make sure no GPS data was missed when a picture is taken...

The two real advantages of using a Bluetooth GPS instead of a camera powered GPS are that 1) the power systems are separate. And 2) the GPS antenna can be placed in a good position regardless of where the camera is.

Power: The GPS must be on all the time to “keep a lock” otherwise you have to wait for the fix before you take a picture (not a good use model). The GPS takes a lot of power, so it can put quite a drain on the camera battery, if the GPS battery goes dead you can still take a picture, it just won’t be geo-located.

Antenna: To maintain a fix the GPS antenna must have a clear view of the sky, if your shooting from inside a car or other vehicle it’s better to have the GPS on the dash than on the camera. Also if the camera is “stored” between shooting where it will not “see” the sky, a camera mounted GPS will loose lock and may take to long to re-acquire when you get the thing out to take a shot.

Red Hen does offer a camera mounted GPS unit for the D200, D2X as well, it's called the "DX-GPS" we’ve had it available for some time, these are the things we’ve learned from use and customer feedback.

ISDE5 - aka International GeoTaggers Conference?

Calling all photo-geographers, geo-photographers, and pointographers!!
.


The "earth first" potential of the NASA/Google alliance takes on additional significance given the wide blog-o-sphere announcement of the International Symposium on Digital Earth get-together in San Francisco in this coming June.

On June 5th 2007, the 5th International Symposium on Digital Earth (ISDE5) will open in the Bay Area of San Francisco, California, USA. The symposium will span four days and will address a broad national and international audience across a spectrum of industry, academic, government, and citizen attendees. All individuals who share a common interest in the concept of a digital Earth are urged to participate and attend. The Digital Earth vision embraces a philosophy that any citizen of the planet, linked through the Internet, should be able to freely access a virtual world of information and knowledge resources.

This philosophy supports the dream of ubiquitous education for the people of the planet. A rich convergence of technological advances, active visionaries, and recognition of the paramount need for humans to better understand the Earth and its systems comprises the character and history of this dynamic and exciting enterprise.

This international vision encompasses the virtual and 3-D representation of the earth with vast amounts of scientific, natural, and cultural information that is partially referenced and interconnected with digital knowledge archives from around the planet to describe and understand the Earth, its systems, and human activities.

The Digital Earth community is dedicated to building a virtual global commons to promote "down to Earth" solutions supported by cooperative web-based protocols using standards, databases, analytical and visualization tools that will foster the creation of appropriate applications for a sustainable future. A consortium of global experts founded the International Society for Digital Earth in 2006 to promote the evolution and implementation of the Digital Earth vision.

5th International Symposium on Digital Earth

ISDE5 Nominations

I would like to nominate two candidates that should be IMHO noted contributors to the "down to earth"contributions.

Global Biodiversity Information Facility
(with Google Earth bio-mash)

The GBIF GE Bio-Mash - or where are all those critters?/

The Global Biodiversity Information Facility is building a Internet accessible link to literally millions of "specimens". Most of the world's biologic diversity is located in the developing regions where as the dominate archive of those bio-diverse regions are held within developed nations. Essentially the GBIF is geotagging as much of the known via Google Earth. Put a time line on the collection and its classification and patterns may emerge? Give a HOOT! Don't pollute!

Good managers of natural resources and policy-makers know that their best decisions are based on results from the most accurate scientific analyses. Such analyses are based on solid, documentable data that have been recorded directly from the observation of nature. Such records are called 'primary' data. Biodiversity is a handy, one-word name for all the species on the Earth, the genetic variety they possess, and the ecological systems in which they participate. Another way of thinking about biodiversity is as the 'living resources' portion of 'natural resources'.

A large part of the primary data on biodiversity are the 1.5 - 2.0 billion specimens held in natural history collections, as well as many geographical and ecological observations recorded by various means and stored in various media. In making living resource policy and management choices, decision-makers are often forced to rely on analyses that are not based on primary data. This is because the world's store of primary data about biodiversity is not at present readily and easily accessible.

Biodiversity is found around the world - there are micro-organisms between granules of rock 3 km below the Earth's surface, rootless plants in the Atacama Desert, thousands of species of beetles in a single rain forest tree. However, biodiversity is not distributed evenly across the face of the planet. An estimated 75% of all species are found in the developing world.

Information about biodiversity (natural history collections, library materials, databases) likewise is not distributed evenly around the globe. Three-quarters or more of data about biodiversity are stored in the developed world. However, most of the data that may be needed can't be transferred because either they are not digitised, or capacity to handle digital information is lacking, or both. Facilitating digitisation and global dissemination of primary biodiversity data, so that people from all countries can benefit from the use of the information, is the mission of the (GBIF).

Conservation Air Patrol
(With National Geographic geotagged images)

Conservation Air Patrol

My second nominee group, the Conservation Air Patrol, transverses Africa counting animals, documenting environmental degradation, and from what I hear swatting flies while getting the job done. Read about then add the National Geographic "MegaFlyover" to your Google earth via National Geographic and Wildlife Conservation Societies, “MegaFlyover”. This team plus National Geographic should be considered as enabling one of the original Mash-up".