Posts Tagged ‘Navigation’

How Do Car Navigation Systems Work?

Sunday, June 12th, 2011

Contemporary auto navigation systems are truly excellent. Have you ever considered acquiring one? People who do not have or have never had a modern auto navigation system, or GPS (Global Positioning System) as it is also known as. will almost certainly not realize quite how much knowledge they provide. It is no longer just an item to stop you from getting lost while you are travelling from A to B.

Far from it. Contemporary GPS systems will tell you if you are passing monuments, sites of historical importance or beauty, churches, hotels, restaurants, taverns, garages, petrol pumps, airports and practically anything else that you would like it to inform you of. They have moved on from being just an on screen map to being a tour guide and much more..

If you are thinking of getting a GPS auto navigation system, it is worth learning a bit about how they operate, so that you can better understand what they do, what they are capable of doing and how they do it. This is useful knowledge for when it comes to choosing which system to decide on, because not all GPS systems are the same and some present more features than others.

All auto GPS navigation systems use satellites to help them determine their location. (This is not always the case with boats, because some water ways use land-based tracking stations).

The GPS is like a radio receiver, so it picks up signals from overhead satellites and interprets that data in order to work out where it is. In order to do this work properly, it requires the signals from three satellites.

This is known as triangulation and is very accurate, frequently to within a metre or a yard. However, in order to make sure of even more accuracy, the data from a fourth satellite is used as a check. There is very little margin for error when four satellites are being used for pin-pointing a position.

A GPS item will tell you which way to go and if you go off route, it will advise you the best manner for getting back to the correct road. However it will also do more than that. Before you begin out on your journey from A to B, you have to type in those two locations.

The GPS will then enquire of you whether you would like to go by the quickest road, the most scenic road or whether you would like to avoid motorways altogether.

This is a immense role, but it can do more than that as well. If you sort in the name of a restaurant along the manner or a monument you want to see, it will steer you from A to B via your place of interest.

One last item, be sure that the device that you purchase is upgradeable. Some are upgraded automatically, but you have to pay a monthly or annual fee. Others will sell you an upgrade which you have to install yourself. If you are comfortable with making your own upgrades, all well and good, but just be aware that systematically upgrading the software is vital.

Owen Jones, the author of this piece, writes on a number of topics, but is now concerned with how to get Stapletons tyres. If you want to know more, please visit our website at Car Tyres For Sale.

What They Do Not Tell You About Auto Navigation Systems

Monday, October 25th, 2010

Auto navigation systems have improved a great deal since they were invented by the US armed forces in the Sixties and Seventies. In fact, their development is a continuous process, as you can easily imagine. I remember in the Eighties when you received a fix on your location every twelve minutes or so.

This meant that ‘sat nav’ was fine for shipping and yachts, but not much good for cars or other fast-moving vehicles. They were also very expensive and quite large, not like the units that cyclists can get in a wrist watch these days.

Despite the fact that sat nav has advanced far enough for businesses to be able to produce reasonably priced auto navigation systems, there are still glitches with them. But there is nothing new about that, it has become standard practice to begin selling a product while it is still at some phase of development.

Look at MS Widows for an illustration; it is nearly thirty years old and still does not work perfectly – it is still ‘under improvement’. The same holds true of auto navigation systems.

And part of the trouble is with the software running the device. Software is a very problematic thing, as Windows proves to its users every day. I am not necessarily knocking Windows software, it is probably the best of its kind, but then there is no real competition for it and that is a shame for all the usual reasons such as apathy, high-handedness and over-pricing, just look at Windows ‘Vista’. What an expensive heap of junk that was.

Needless to say, if Microsoft cannot get their software right, then auto navigation systems cannot either. Therefore, it is imperative to use an auto navigation device that either regularly updates itself automatically or permits the user to do it manually.

You need the latest bug-patches to the software and the latest updates to the maps. Ideally, the system will update itself every day automatically, but you ought to do it manually at least before each long journey.

The signal is obviously very significant too. In order to get a fix on your position at least three satellites have to be able to ‘see’ your auto navigation system. If a fourth can corroborate the data, then so much the better.

This means that you may vanish ‘off the radar’, so to speak, if you are travelling under ground or in mostly built-up locations. Being seen by one or two satellites is not good enough, there is no triangulation.

It is rational to assume that if you have a clear view of the sky, then the three or four satellites should have a clear view of you, but it is not an infallible check. The best thing to have with you is still common sense. Do not just depend on your auto navigation system blindly. If you think it is giving you a false reading, it might be.

In this situation, the best thing to do is think about whether you or it is right and check it with a map if you have one. If all else fails, employ a bit of advice often made by Windows support, switch the unit off, count to ten and turn it back on again – in other words, reboot it.

Owen Jones, the writer of this article writes on various subjects, but is currently involved with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

Reasons For Installing A Sat Nav System

Saturday, October 2nd, 2010

You have surely seen auto navigation systems in your friends’ cars and you could be on the point of buying one yourself. It is certainly true that the auto navigation systems are impressive and the price of a unit has fallen fairly radically over the last few years. There are indeed many benefits to be derived from owning an auto navigation system, which is also known as sat nav.

In this article, we will take a look at some of the most important benefits of using a sat nav system.

Safety is paramount in whatever pursuit you undertake and safety has to be taken into account when driving too. It is difficult to know whether the world used to be a safer place or not, but it is a fact that these days more people are wary of getting embroiled with strangers than they were before.

Solitary drivers do not want to accost a stranger and admit that they are lost or even stranded. Maybe the stranger will direct you into an ambush, set up hastily over a mobile phone as you drive off happily suspecting nothing. People have become very distrustful of strangers.

It goes without saying that lone female drivers are the most wary of asking strangers for directions, but families with children are often very wary as well.

Using an auto navigation system solves this problem, because you will never get lost again, presuming that the sat nav console is wired to your car battery or you have spare batteries for a hand-held device in the glove compartment.

Confidence in getting to your destination on time, if you have left early enough, is another major advantage. Traffic jams, road works, accidents and natural disasters will no longer be surprises to you and your sat nave system will be able to suggest alternative routes in order to avoid the obstacle. This is a very large advantage.

You will no longer have to leave really early to make sure you miss the traffic or to make sure you get somewhere on time. Sat nav will give your ETA. This can save you a whole lot of stress, especially if you have to be in different places for work or the kids all the way through the day.

Not to have to juggle with maps is a boon as well. No more folding and refolding maps and struggling to remember sections of the route and then stopping to check and remember the next part of the route. Maps are always out of date too. New sections of motorway are always being added and small roads are sometimes closed for a new housing project. Paper maps just cannot keep up.

The last but not necessarily the least major advantage is the freedom an auto navigation system gives to you in your free time. It opens up the countryside If you were always a bit nervous about going on a Sunday drive because you did not know the way or did not have a co-pilot to read the map, now you can just go with your auto navigation system.

Owen Jones, the writer of this piece writes on different subjects, but is currently involved with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

A GPS Auto Navigation System Can Aid Travelling

Monday, September 20th, 2010

Are you happy driving long distances on your own? Or driving to destinations that you are not familiar with? If you are, then all well and good, but there are lots of people who have to make journeys like those, but who are terrified of getting lost.

It is not simple to get a job these days and it will probably get worse before it gets any better, so it is not straightforward to object or risk losing your job. A way around these difficulties is an auto navigation system or a sat nav as many individuals call them.

An auto navigation system is quite cheap these days and it can relieve lone drivers of a lot of stress, if it is used properly. If your car did not come with an auto navigation system, then get one installed by a reputable third party or go for one of the other alternatives, such as loading the software on a laptop or getting a hand-held sat nav system.

In fact, the dearest way of purchasing an auto navigation system is to get it with the car on finance, because you will be hit twice. Not only are the car manufacturers and their dealers the most expensive by a long chalk, but if you put the sat nav on the car finance you will pay even more for it. Heaps more.

Buy your car on finance if you have to, but buy all the accessories separately for cash. Consider visiting a few garages and asking for a quote on the system that you like. This requires a little research first, but it is well worth it. There are two ways of going about this: either check out which system you want first, or see what local technicians can install first.

After you have finished this research, you will have your price for installation and then you can go online and find out how much you can get one there for in comparison with the local shopping street.

Another alternative is to buy an adapter for the cigarette lighter socket so that you can plug your laptop into it and buy the software and hardware as a package so that you can change your laptop computer into a full GPS auto navigation device.

If you already have a laptop, this is the least expensive, best alternative. It will provide at least as good a system as a stand-alone set-up and the screen may even be larger. It also means that you can remove the device so as not to give criminals another excuse to break into your car.

The cheapest option of all is to get a hand-held GPS sat nav unit. These are also useful, but often they do not offer the same level of service. Like the laptop option, the hand-held device can be taken out of the car and utilized on a boat. However, the hand-held unit can also be used while walking or on a bicycle

Owen Jones, the writer of this piece writes on various topics, but is currently involved with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

Getting The Right GPS Auto Navigation System

Saturday, September 11th, 2010

In order to find out which GPS (Global Positioning Satellite) navigation system (also known as sat nav) is right for you, you first have to be certain on what you want to get out of the set-up. Will you be utilizing your GPS auto navigation system solely in your car or will you be requiring to use it to go cycling, hiking or boating? Another question is, whether you already own a laptop or palm computer or not.

There are dedicated GPS auto navigation systems for every situation and some are versatile enough to cover a couple of uses. The best systems are those that are devoted to doing just one job. In this category, you have the stand-alone vehicular GPS navigation systems. These are either cut into the dashboard or mounted on it or sometimes even onto the windscreen.

One good piece of advice, if you are buying a new car on finance is to have the sat nav installed by a third party or to pay the garage cash for the sat nav and its installation. If you have the price of the GPS auto navigation system put on the finance contract, you will end up paying a great deal more for it.

On the other hand, you could install the device yourself. I do not mean that you should cut holes in your dashboard yourself, but you can buy mounting packages that use powerful transparent rubber suckers. They will hold the screen securely, as long as you check them from time to time to make sure that the suckers are still holding.

You can get just as good a service from a GPS navigation system running on your laptop and the screen will almost certainly be larger that the normal sat nav screen too. Your laptop will run off batteries or an in-car adapter and the software will run within the laptop.

This is an outstanding alternative if you already own a laptop or were thinking of buying one. The laptop will perform its normal tasks as a computer and double as a navigation aid with the added bonus that you do not have to leave it in the car as another reason for a thief to break in.

The cheapest alternative in the portable sat nav market is the portable or hand-held unit. However, the screens can be rather small and the directions may be given either in pictures or by voice, not all hand-held sat nav systems present both options at the same time.

If you want a GPS auto navigation system but you are finding them a bit expensive, you could always wait a while, because prices are dropping all the time. You could also check out online stores such as Amazon and eBay.

Keep in mind, that the worst thing you can do if you are thinking about costs, is to put the cost of the sat nav on the car finance deal. If you really want a stand-alone GPS auto navigation system installed by an expert, take your car to a garage after you have bought it. Otherwise, install the software on your laptop and sit that on the seat beside you.

Owen Jones, the author of this article writes on various subjects, but is presently involved with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

Various Sorts Of Satellite Navigation Systems

Thursday, September 9th, 2010

It is a bizarre fact that many buyers of new cars are ready to pay several times the true value of a satellite navigation system in order to have it installed by the manufacturer. It is true that the car’s manufacturer normally does an excellent job of fitting the device, but then you are paying a premium for it.

If you purchased the sat nav unit separately and had it fitted by a third party, you would get it for a third or a quarter of the cost. Still, it is part of the idea of buying a new car to have all the latest apparatus built in to it. Satellite navigation, commonly called sat nav, is a real godsend, if you buy a system that is up-to-date and that is regularly updated.

It is not necessary to have the sat nav fitted in the car factory in order to have it installed well. Many third party installers are quite capable of making a good job of it too without having to have your radio/CD player removed.

Many auto navigation systems are fitted to the instrument panel by means of rubber suction cups in any case. Buying a sat nav device that does not have to have holes cut for it will also keep the cost to a minimum without having to forgo quality or safety.

An important point to remember is that there are many kinds of GPS systems, each with rather specific uses. GPS for an ocean-going yacht does not have to have road maps, whereas GPS for a bicycle may not give sufficient advanced notification for the speed of a car.

Even if you purchase a GPS sat nav device for a road vehicle, there are several varieties. The three fundamental kinds are: stand-alone, such as you see fitted at the car factory; hand-held and systems that are meant to be used with a laptop computer or similar device.

The stand-alone systems are the most popular, because they have certain advantages: they are made for the job of getting you from A to B via C, D and E, if required; they hold a database of landmarks which will help you know that you are on the right road; a voice will give you directions so that yo do not have to keep referring to the screen and it will memorize and integrate previous routes.

Hand-held sat nav systems work, but require more thought and sometimes additional software to be provided by the user. The screen is usually too small to be of much use and some only create voice directions. Others only provide pictorial directions. However, they are better than nothing if you are hiking or cycling in unfamiliar terrain.

Laptops and PDA’s offer an excellent service, especially if you already had the device for other reasons such as office work.

So, it is not just a question of getting hold of a cheap sat nav system and thinking that they are all the same, you have to see it working so that you can weigh up whether it is going to be of any use to you in your situation.

Owen Jones, the author of this article writes on various topics, but is presently involved with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

Sat Nav For Stress-Free Travel

Thursday, September 9th, 2010

There are many reasons why you may be a prime candidate for an auto navigation system: If you drive to new locations often, say as a company representative; if the routes that you travel regularly are always being dug up, if there are frequent traffic jams or if there are lots of traffic lights on it; if you want to avoid schools or shopping malls or if you just want to find a quicker or a more scenic route to your destination.

Many people would benefit from an auto navigation system, but there are a couple of kinds of systems so it can be quite difficult to work out which one would be the best to suit your requirements. In the rest of this article, we will take a more comprehensive look at these different types.

Sole purpose, stand-alone auto navigation systems are the sort that are normally built into new vehicles by the manufacturer. However, that is the most expensive way of purchasing an auto navigation system, so it is worth getting one put in later, because then the cost of the unit does not go on the car’s finance deal, which would make the sat nav unit very costly.

These units usually bear subscription charges analogous to a mobile phone. This means that the sat nav unit is often sold for a very small profit, but the company makes its money from your monthly payments for the data feed. It is a very similar set up to the mobile phone deals.

The monthly fees are a bind, but the systems are bang up to date. The information in these devices is updated live and you will be made aware of obstacles or hazards in the road ahead of you within minutes of them occurring.

Multipurpose hand-held navigation units are auto navigation systems that do not offer quite as much detail as the stand-alones, but they can be upgraded by software add-ons to do the same job if you like.

However, because they are portable, they can be removed from the car and used in a boat or for hiking or cycling. In other words, the hand-held console is far more adaptable.

Laptop or Palm Top based models are designed to run on your computer. They are usually just as capable of delivering as detailed information as a stand-alone system and they are obviously portable too.

If you already have a portable computer then this is just about the least expensive, good system. You will get a top of the range, GPS auto navigation system on a large, laptop screen for just the cost of the subscription.

Satellite navigation is certainly here to stay, because young people want it. It can also be seen as a safety device for solo travellers. For example, if a lone traveller gets lost, there is no need to stop to ask directions or if your car breaks down out of town, you will know where you are located in order to direct the service to where you are.

Owen Jones, the writer of this article writes on various subjects, but is currently concerned with the Snooper sat nav system. If you would like to know more, please go to our website at Escort 8500.

Automatic Identification Systems On Vessels

Friday, June 11th, 2010

An Automatic Identification System, or AIS, is a device that helps to identify boats and vessels by sending out a continuous VHF signal that transmits basic information about that vessel such as its name, locations, type, & call sign.

The transponded information can then be received by other vessels to help them to determine its course and speed. As the VHF signals come in, the receivers are able to display all AIS-equipped vessels that are transmitting within a certain range. The system therefore provides a highly valuable service to water vessels in helping to track the progress of other watercraft in the nearby area. This decreases the chances of collision on the waterways. . The data that is received by other AIS-enabled vessels is most of the time shown on a computer display or positioned as an overlay on a chart plotter. This will help to confirm radar readout.

Ship navigators utilize AISAIS as a navigational tool to reduce the risk of collision and to chart a safe course to travel. Maritime search and rescue operations can be made much easier by automated identification devices that will specify the exact location of the distressed vessel regardless time of day or the weather conditions.

Dangerous situations can be avoided by programming the system to track specific vessels. This information can be exchanged automatically by the ships captains allowing for safer navigation. Ships with over 300 tons of cargo & all passenger ships are required by the International Maritime Organization to be fitted with the marine guidance system. People who use recreational boats are not required to use it, however more people are using the technology. All over the world, it is thought to be used in over 40,000 vessels.

This maritime technology is used primarily to avoid collisions. The tracking does not work alone. VHF radio communications can be limited and considering the fact that every vessel isn’t required to have it, it is not the perfect solution. It is not an automated collision avoidance system as defined by the International Regulations for Preventing Collisions at Sea (COLREGS). In the hands of a skilled captain however, it is one of many tools utilized for safe travel.

During sea navigation, identifying other ships in the area is crucial for captains to make the best decisions on any voyage. That also does not mean that all other types of navigational observation is thrown away. There is certainly, of course, visual observation where the captain will often make use of binoculars to spot far away obstacles or boats. There can also be acoustic observational alerts that a captain must pay attention for such as horns, whistles, or VHF broadcast. Finally, there is radar or Automatic Radar Plotting Aid (ARPA) that can provide important navigational data to add to what the AIS is plotting. Despite having all this technology, accidents can still occur. It is often because of time delays and limitations of radar or even just plain human error whenever this occurs. The graphical charts and all the other observational tools must be utilized if water travel is to be safe and AIS is a small part of that.

Visit AIS and read more about AIS

An Understanding Of Radio Frequency Identification System

Thursday, April 15th, 2010

RFID is not a new technological innovation. It has been around for many years and it has by no means stopped broadening its application ever since the 1940s. Radio Frequency Identification or RFID is actually a multi-component solution. Components consist of mini transponders, readers, as well as present day computer software that set off a continuous feed of data.

An internal circuit and antenna are essential in every RFID transponder. The IC is implanted with an electronic product code (EPC) rendering it unique among the remaining tagged items worldwide. When the label is within range of an RFID scanning device, information about the tagged article is sent out over the antenna to the scanner, providing data to a processing device.

RFID technology was initially applied for military applications in World War 2. Subsequently, it’s been utilized in various fields. It became a real help in travel. automotive, shipping, security, not to mention a number of other business applications.

Even though it was thought of as a wireless bar coding device, RFID is much better by far. Scanning with RFID transponder remains reliable even if obstacles stand somewhere between the item and the detector. Additionally, these transponders can scan an item as much as 90 feet.

RFID is an independent determination system. This determination approach functions without human supervision. It’s also able to track a lot of IDs simultaneously and continues to be accurate in identifying the items.

As a rule, RFID systems are categorized in 2 ways. The first kind springs from its storage and recovery benefits: Read-only or Read-write and Passive or Active land sources. The following is dependant on the frequency it employs: Low Frequency, High Frequency, or Ultra-high Frequency.

Read-only labels are only able to acquire stored data say for example a product description and so on. Most of these systems can easily simplify fabrication and distribution schemes. Read-write tags in contrast are purposefully designed to both interpret and input data.

In a passive method, an RFID scanner gives off a power field that triggers and powers the tag. Without a scanning device inside 90 feet, the ID could not render any data. A passive method isn’t as helpful and is rather inferior when it comes to reliability than a dynamic system.

A dynamic system has batteries implanted in tags to aid in the transmittal of information between tag and scanner. Dynamic techniques tend to be more advanced than passive systems and scans bigger ranges. They’re also equipped with extra features like thermal scanners and definitely have a lengthier life span.

More info about Automatic Identification Systems at Radio Frequency Identification Systems