Longway GPS Blog

The Easy Walk service has been developed by Il Village, a firm in Turin in northern Italy. It is currently being tested by a group of 30 people from the Italian Blind Union who are providing feedback. The plan is for Easy Walk to be launched to blind and partially sighted people in Piedmont in the autumn.

Easy Walk uses a mobile phone that runs the Symbian operating system, a small Bluetooth GPS receiver,text to speech software called Talks (though rival products are also compatible) and a call centre that will operate around the clock seven days a week.

It requires just two dedicated keys on the mobile phone - one which, when pressed, tells the user their exact location including the house or building number and the other one alerts the call centre that the person needs assistance with navigation.

An operator will then call the blind person, find out where it is they need to go and stay on the line with them providing step by step instructions.

Easy Walk is the brainchild of Andrea de Paoli, Il Village’s technology officer.

This is a concept that Mr de Paoli refers to as having a “guardian angel” who makes sure that anyone using the system gets to where they need to go

Because Easy Walk uses digital maps, in theory the call centre staff would be able to provide guidance to a user anywhere in Europe.

The system has already been tested across the border in France and Switzerland.

Instead of cramming an expensive navigation system into the car, the Japanese company opened up some space at the top of the dash to allow Garmin integrate a system with the vehicle.

The 2008 Suzuki SX4 is the first vehicle of any sort to be priced below $16,000 and have a standard navigation system.

Suzuki created a flip-up position at the top of the dash to hold the Bluetooth GPS system. It clicks right in and charges while connected to the dash as opposed to the suction cup and wires down to the cigarette lighter outlet. The system connects through the stereo so it will automatically lower the radio’s volume before directions.

The little compact car, which goes against the likes of the Mazda 3, Ford Focus, Toyota Corolla, and Honda Civic, may come across as more cheap and cheerful than bold and beautiful, but for the money it’s a good deal.

GPS applications are bright prospects for change in the status of human life and more local people, whether you carry the expensive phone nervous, because you are afraid of car theft and Yebunengmei Do not have to fear, with the development of GPS technology, these fears is superfluous.

 GPS global positioning system is the core of the future functioning of the force, its military technology from the United States evolved from the phone, transportation, aviation, surveying and mapping and first aid in areas such as extensive application.  In the car with the GPS anti-theft vehicles will be able to automatically download the current location, speed and other information, and this information will be timely feedback to the owner.In the aviation field, GPS is able to greatly enhance the accuracy of the flight, such as bad weather like fog this application is very important.

GPS systems built in 1978, in heaven operation of the 29 sent to the satellite positioning signal, the ground receiving equipment on these signals to achieve the targeted latitude and longitude. GPS is with us ever closer integration of life, may even be completely changed our way of life.

 In the next few years, Russia’s GLONASS and the European GALILEO will provide a more accurate and cheaper location-based services, will break the monopoly of GPS for many years. Based on the navigation services once universal, personal life will cause great change.

about GPS question of excursion, first of all from the principle of GPS positioning Jiangqi, from the mathematical point of view, is the space of three known locations, and you go to these three points of the relative distance, and your location, which is three-dimensional geometry In a very simple question, is the mathematical principles of GPS.

 Corresponds to the actual application, the location of three known, is not responsible for the three satellites, because the satellite is in accordance with the “ephemeris” precision operation, so it at a certain time we can know the location, which meet the mathematical principle , The first problem solving; second condition is that you need to know that the relative distance from three satellites, satellite launch a specific radio signal, the GPS receiver you receive this signal is later than the time difference, because the radio Transmission speed is known, through this time difference is you can calculate the distance between the satellites. Two conditions are met, you will come out of position.

These are only the GPS principle of a simple description, but also practical applications much more complex, in fact reached 3 D positioning, at least four satellites, to more than one is used to award the.  Interested friends can access the relevant information to satisfy your curiosity.

 Understand the principles of GPS positioning, we will find out that, although the mathematical principle is very simple, but through physical means to achieve the two known conditions, is a very complicated matter.

First, the satellite in the sky to fly, who can not guarantee that it can not slightest difference in their tracks, there are always more or less the deviation.  Second, the GPS receiver, you can not on a cesium atomic clock, the transmission speed of radio waves per second is about 300,000 km, a simple calculation you can see, if the error 0.00001 second time, the number of poor distance?  Even if you do not have the time error, the radio waves will spread in the air by many factors, such as weather. The impact of the above is not the most important, more important reason is that the impact of how much you can receive satellite signals.  GPS signals are very weak, then receiver on a small ceramic antenna, you can also count on what is good effect?  So basically what they are irresistible, you will not received signals, even if you have received a 10 eight strong satellite signal, we will certainly be very accurate? No. If you just catch up with this Zhacheng 10 satellites are a bunch of meetings, or a neat line of home school team, then you will have some trouble