Row.co.uk Blog

Sat Nav and The Science Behind It

The thought of travelling to a far-off village with a road map in tow has become antiquated in recent years, and that’s primarily due to satellite navigation. This remarkable tech is now so common that most of us carry a global navigation system in our pockets every day.

Sat nav was originally invented for the US military, and was based on primitive navigation systems that had been prototyped in the 1960s. Mapping as we know it was opened up to consumers after the US government decrypted its navigation systems and improved accuracy, which took place around 20 years ago. 

In the mid-2000s, the first commercially available sat nav systems were fitted to cars, and there’s now very little practical difference between the system on your phone and the system used by the military.
sat nav in car

How Sat Nav Works - the Basics


The GPS chip in your phone or sat nav system scans the sky looking for positioning satellites.
There are 24 of these satellites currently in orbit, although your sat nav only needs to be able to see three of them to get a location. In practice, most of our devices can see several at any time.

If your device can see four satellites, rather than three, it gets a little bit more information: it can also calculate your altitude. 

The phone in your pocket, or sat nav in your car, still requires the resources of the US military on the ground, too. Two ground stations in the United States ensure that the satellites are functional by tracking data from a global network of monitoring stations. There’s more information on the US government website.

Calculating location in this way is fraught with complicated problems. For example, although these satellites carry atomic clocks, the time stamps they generate can be slowed down by the earth’s atmosphere. Also, time ticks by at a slightly different speed in space, because the pull of gravity is different. So sat nav satellites have to be able to compensate for all of these small differences to give an accurate location.

Evolving Tech

Sat nav has evolved in the last few years, fuelled in part by the rise in 4G connectivity. Now, maps can be automatically updated when roads are closed, or when roadworks are in place, giving people more useful directions. Additionally, 4G is used in combination with self-driving technology to create driverless vehicle systems.

In theory, this will mean that self-driving cars will soon be able to avoid collision by constantly knowing the location of all the other cars around them.

This combination of GPS and two-way connectivity has also turned sat nav into a way to track and locate people. There’s still controversy over the use of location data by companies that track us to sell us things and serve us ads.

The one downside of all this clever tech is that it could be switched off or disrupted, and there are signs that sat nav signals are already being jammed by rogue states as a form of cyber attack. In fact, the humble sat nav is perhaps one of the most important advances of the modern world because most of us are so dependent on it being functional.

With the above in mind, there would be nothing worse than something happening to your trusty road partner. If it's a cracked screen or it's been stolen, we've got you covered.

*The information in this blog is designed to provide helpful information on the subjects discussed. Please seek a professional for expert advice as we can not be held responsible for any damages or negative consequences upon following this information.

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How to use your gadgets in a more efficient way

Row.co.uk Blog



We live in an era where we can’t be separated from technology even for a day. We constantly have to check our social media updates, notifications, messages and calls from friends and family. Our reliance on Google for every little thing leave us with no choice either.

But a lot of people don’t know how to use their gadgets efficiently and because of that they run out of battery or are easily damaged.  Since all of our personal gadgets play a huge role in our lives, we should try our best to use them as efficiently as possible. Not only does this save energy but also because in doing so we reduce the carbon imprint.


Here’s how to do it:

 

1.     Get a laptop

If you don’t do any heavy stuff on your desktop computer such as graphic designing, running hardcore and professional software etc. and only use it for regular things like checking emails, web browsing or watching videos and playing light games then you need to get a laptop. Switching all of your work on a laptop is going to save a lot of energy because a CPU takes in more electricity to operate and this result in higher electricity bills. Look for laptops that are popular for energy efficiency and get one that suits your needs best.


2.     Get smart about smartphones

These days, everybody jumps on the bandwagon of getting the latest model of smartphone even though they might not know how to use even half of its features. Investing in a gadget that you don’t know how to operate is a waste of money and energy. They run out of battery really quick and you keep a phone that you don’t even want to use much.

If you are someone that just sticks to basics when it comes to a phone then get a regular low budget smartphone that is good enough for checking messages and emails, taking calls and pictures.

However, if you have already taken an expensive smartphone then the best way to save its energy is to close all apps when you are not using them. This protects the battery from depleting really quickly and you don’t have to charge it more often. Also, lower the brightness levels of the phone when using at night. Switch to flight mode while travelling and you will get a much more optimum level of battery on the phone. 

 

3.     Tablets

A lot of people make the mistake of using the tablet like a laptop, even though it is somewhat of a hybrid of a smartphone and laptop. The purpose of a tablet is mostly to be that of an eBook reader plus with some browsing. But people try to use them heavily for other purposes as well and that causes the battery to drain out easily.

Note: Always unplug the charger for any of your gadgets when the battery is full and don’t leave it charging for hours.

Make sure to get good insurance on your personal gadgets and go to https://row.co.uk/gadget-insurance to avoid any mishaps.


*The information in this blog is designed to provide helpful information on the subjects discussed. Please seek a professional for expert advice as we can not be held responsible for any damages or negative consequences upon following this information.

Mobile Insurance Free Quote
Comments are closed