Tag: Work Article

How does a GPS Tracker work?

How does a GPS Tracker work?

Article by Gen Wright









If you watch a lot of action-packed movies or TV series these days you must have been awed by how technology can be applied in so many things like crime investigation and tracking. One technology that is often inserted in so many modern movies is the GPS or Global Positioning System. This is one huge project of the US Department of Defense that is fully functional and indeed very useful. The most common application is the GPS tracker that is now installed in most modern cars.

GPS Technology

A GPS unit is mainly made up of three segments: the satellites, the control system, and the user.

There are over two-dozen satellites stationed just outside the earth’s atmosphere. These machines are about 11,000 nautical miles above the surface and they are funded and controlled by the US Department of Defense. In order to control these satellites, there are control or monitoring stations in several strategic locations across the globe. These are the units that get the information from the satellites, monitor, and analyze them for any significance in government operations. The user holds the receiver of the radio signals from the orbiting satellites. It can compute its distance from the satellite by using the time stamps on the radio waves that were sent.

To zoom in to a specific location, four satellites are needed. The accuracy is around 10-15 meters so it doesn’t really help if the object being tracked is a car that is about 3 meters long. This is why there have been upgrades like the Differential GPS, which helps give more accurate information on the precise location of a vehicle.

Application in cars

The GPS tracker technology has found a lot of use in so many things that need to be tracked. The primary application is in vehicles. With the GPS tracking device installed in the car, the owner is certain that he won’t get lost even in places unknown to him. The screen that is hooked on to the GPS system of his car will help him find his way onto the nearest main road leading to his destination – that is, if he got lost.

The best use for the GPS tracking system is in the unfortunate event that the car gets stolen. If you only have the ordinary alarm system installed, you can’t be sure about your car’s total safety. This is because any skilled car thief can easily override your alarm system and get away with your car – and you will never hear from it again.

The GPS tracker system is a genius of a tracker so your thief can’t really go far with your car. The minute you suspect that it’s been stolen, you can just report to the authorities immediately and they can tap into the GPS system so they can instantly check where your car is at that very instant.

The GPS tracker is also useful in many other ways like:

* Investigating on a cheating spouse* Monitoring where your teen kids are* Keeping track of your pets* Guarding people on parole* Tracking small units like cell phones



About the Author

Sam is the owner of Turborevs Car Security. You can find more information on GPS Car Tracker.










What Is GPS Used For Today And How Does A GPS Receiver Work?

What Is GPS Used For Today And How Does A GPS Receiver Work?

Article by John B. Mayall









When you hear about General Positioning System (GPS) system, you should first consider the GPS receiver. It is the part of the device responsible of processing the signal sent by the satellite in the space to find out your actual location. The receiver is usually placed on the dashboard of your car or underneath it. It renders on a dedicated output device your screen your destination.

The entire GPS is a constellation of about 27 satellites rolling around the center of the Earth at a steady speed. Amongst these satellites, 24 of them are responsible of processing signals emitted by the receiver and the remaining satellites are used for storage purposes on case of an unplanned event. The GPS receiver is responsible of hooking up with satellites used for storage purposes and working out its position from that satellite by computing their distance. The mathematical tenet used for this purpose is named trilateration.

Trilateration can be achieved in two dimensions and also in three dimensions. The rationale of this mathematical principle is to work out a triangle where you are located at the center of it. As soon as the GPS receiver emits its position and makes a connection with other satellites, it immediately works out three nearest points and computes your position.

Three types of GPS receivers can be noticed: those which can be installed in a car, lightweight and mobile GPS receivers and tracking GPS receivers. It is obvious that portable receivers are a huge boon for outdoor activities.

Finally, it is good to know that the actual process of GPS receivers is a little bit more intricate than what was described in previous sections. However, throughout this article, although the main objective was to give a broad overview how they work in theory the next paragraph will delve into advanced details about GPS computations.

From previous sections, we learnt that the GPS receiver computes its distance to the nearest available satellites in space by noticing the time spent by the emission of a given signal from the receiver to the satellite. There are another category of GPS receivers that you have not mentioned throughout this article. In order to overcome the lack of precision of the traditional GPS receiver, differential GPS receivers were born. Their rationale is to estimate the level of GPS errors at a stationary receiver station with a location that was already computed before. Since the Differential GPS hardware at the station is already aware of its own location, it can work out its receiver’s level of errors in a straightforward way. The station then broadcasts a radio signal to all Differential GPS-equipped receivers in the nearby area, providing signal correction information for that area. In general, accessing this correction information makes Differential GPS receivers much more correct and precise than traditional GPS receivers.

The most essential function of a GPS receiver is to pick up the transmissions of at least four available satellites and combine the information in those transmissions with information in an electronic almanac, all in order to figure out the receiver’s position on Earth.



About the Author

Learn more about gps navigation on cell phone and auto gps system tracking when you visit internet’s most popular GPS vehicle tracking devices at http://www.gpsportabletracking.com










Panic Cure – Why Benzodiazepines Don’t Work?

Panic Cure – Why Benzodiazepines Don’t Work?

Article by Isabella Miller







If you have been suffering from anxiety and panic attacks for quite a while, you may already have been advised to take medication in the form of benzodiazepines. Maybe you want to know whether this kind of prescribed medication is a good panic cure.

Let’s take a closer look and find out why these types of drugs don’t really work.

Benzodiazepines are a form of anti-anxiety medication that provides a very quick relief from the symptoms of panic and anxiety attacks. What you have to bear in mind is that the effects are almost immediate and usually take place within 30 minutes to about 1 hour.

Let’s start with the most common prescribed pills, which are Xanax, Ativan, Klonopin as well as Lysanxia and Valium. Now, you have probably already heard of Valium, which is a very old benzodiazepine and dates back the 1960s. New medications have been developed lately but they usually have the same effects as the older form of Benzodiazepines.

Now, it would be totally wrong to say that they don’t have some kind of effects. As explained earlier, they do have some effect and can reduce the panic attack symptoms very quickly. It is rather useful if you suffer from occasional anxiety since you do get a bit of respite but what you must understand is that they will not treat your condition.

Depending on the severity of your anxiety and whether you suffer from mild, moderate or severe panic attacks, you seriously ought to go for different treatments;

What you also have to bear in mind is that Benzodiazepines have strong side effects and can be very addictive. They can also give you some strong withdrawal symptoms. This is the actual danger of getting hooked on these pills so to speak.

Lots of people who began taking this anti-anxiety medication occasionally are now treated for addiction without having realised it in the first place and this is clearly what you want to avoid.

After a while, anti-anxiety medications no longer have the same effect on the brain and can become useless but you still get the same side-effects and it is very difficult to stop taking them without having to go through serious withdrawal symptoms too.

Now, there are many other panic cures which work much better than medication. Once again, depending on the severity of your anxiety problem, CBT or cognitive behavioural therapy can be the solution for you.

It is very effective panic cure and can reduce the symptoms of panic attacks without having to resort to heavy medication. With practice, it is also entirely possible to eradicate the condition altogether.

What you must remember is that an anxiety disorder occurs in your mind and is totally irrational.

Want to discover 20 more tips and treatment options? I am sure you do! Look, I have got a FREE exclusive PANIC ATTACKS report and video that I really want you to grab before it is too late! Also, don’t hesitate to get more free tips about GENERAL ANXIETY DISORDERS.



About the Author

Isabella Miller is in her mid forties and has a keen interest for new drug free treatments to help people get back on their feet. She has suffered her good deal from extremely severe panic attacks in the past but successfully managed to get her life back on track by re-training her mind. She is now free from the general anxiety and happy to help anyone suffering from the same condition.