Navigation system how does it work

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Our expert will follow up with you within business days to discuss your question in detail. Many experts in the automotive industry predict the coming of fully autonomous driving experience in less than ten years. A driver will turn into a passenger and enjoy the ride without even the need to check on the road. So, what will happen with a car navigation system and how a next-gen vehicle will guide its way?

In this article, we will dwell on those changes that navigation is currently undergoing and what we should expect in the nearest future. Our automotive experts will also share their practices and insights on implementing embedded car navigation solutions for Tier 1 manufacturers in the second part of this article. Modern onboard navigation is a complex system integrated with other vehicle systems acquiring more features of a smartphone.

Connected to the cloud, an in-vehicle navigation system has both online and offline location search, 3D HD maps, voice assistance, OTA map updates, real-time traffic information, and POI search which allows optimizing guidance and the driving experience. In many modern vehicles, such displays are integrated to present a driver all necessary features in a single display, which makes navigating less distracting.

For an average user, an in-vehicle navigation differs less from free maps in their smartphones also including GPS receiver, route instructions, a loudspeaker for voice guidance, calculation of best routes, distances and time. Some purchased navigation apps can contain a safety camera warning or route planning. It is also possible to download offline maps of all the needed points of interest in your region. However, it can take additional storage space on your smartphone.

Unfortunately, online maps become useless when the signal is lost in the remote area. With the dedicated GPS receiver in the embedded car navigation system, a driver can still have an access to maps and continue his route even with the connection dropouts. Today, advanced guidance in modern cars can function with the help of the same online maps and traffic data as it is available on the smartphone.

Yet, compared to the in-vehicle navigation, a smartphone cannot provide real-time traffic information without the internet connection whereas navigation in cars utilizes Traffic Message Channel TMC technology.

In this case, the encoded traffic and travel information are delivered to FM radio broadcasts with the help of Radio Data System RDS that gathers all traffic information from police stations, cameras, traffic control centers, roadwork reports, etc.

This is a sort of a backup plan for a driver who cannot use LAN network to receive life-critical data about adverse road conditions, collisions, construction alerts, etc. A step-by-step destination entry is an essential navigation feature that allows a driver to plan the whole route. With this option, a driver can set one destination point or multiple points for the long trip entering different patterns. The problem with such map displays is that the more details they contain the more distracting they become for a driver.

For instance, to enter one destination point a driver should get through a complicated menu tapping a few times before all the input data is added. View other results in the chart below. Almost all car manufacturers warn drivers not to use an entry option while driving.

Yet, pulling over every time you need to change your destination point can be too time-consuming and in many cases, almost impossible. Therefore, the trend of adopting voice assistance technology is growing these days. Many carmakers exploit it to simplify the complexity of an in-vehicle navigation management, obviate possible distractions and completely substitute touch-based destination entry.

In pursue of creating a human-like experience, the voice assistance solution is being constantly elaborated and improved. For instance, Nuance Dragon Drive incorporated in its conversational interface such next-gen technologies as cloud-based services, voice biometrics, Artificial Intelligence, Big Data, machine learning, natural language understanding, and others.

However, some studies still argue the safety of using voice assistants for navigation on the road with the fact that they are mind-distracting and prone to misrecognition of human language. This issue is still rather controversial because a person can get used to interacting with the Voice Assistant and learn how to refocus faster.

Besides, the arrival of digital assistants will increase anyway and by , they are predicted to outrun even human assistants. Humans have looked to the skies to find their way since ancient times. Ancient sailors used the constellations in the night sky to figure out where they were and where they were going. Today, all we need is a simple hand-held GPS short for Global Positioning System receiver to figure out exactly where we are anywhere in the world. But we still need objects high in the sky to figure out where we are and how we get to other places.

Instead of stars, we use satellites. Over 30 navigation satellites are zipping around high above Earth. These satellites can tell us exactly where we are. Satellites act like the stars in constellations—we know where they are supposed to be at any given time.

A receiver, like you might find in your phone or in your parents car, is constantly listening for a signal from these satellites. The receiver figures out how far away they are from some of them.

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