If you are in Las Vegas, USA, and you are going to buy an Audi A4 or Audi Q7, congratulations, you will unlock a new skill, and we have given it a name - "traffic light" I knew early, this skill allows the driver to know the traffic lights early. The starting point for Audi to develop this function is to solve the traffic situation more effectively, so that the owner can know the status of the traffic light in advance, so as to better control the speed, save precious time and reduce the impact on the environment. Seeing, is the era of intelligent transportation coming?
Audi IoT application: predicting traffic lights time
V2I technology
Audi's announced feature mentions a very strange term - V2I technology, which is Vehicle to Infrastructure, or V2I. Previously, some excellent car manufacturers have also released similar concept technologies. In 2013, Mercedes-Benz released a set of technologies called "Car to X." The “X†in “Car to X†stands for many things, such as Car to Infrastructure, Car to Home, etc., not just the Car to Car car. In addition to Mercedes-Benz, BMW and Volkswagen all have their own set of "Car-to-X" networking technologies.
The Internet of Things has been proposed several years ago.
Although such a concept has already been proposed, there has been no practical application of car companies. Audi officially released the news: After June 2016, the Audi A4 and Q7 models produced in the US market will be equipped with audio connect (of course, depending on the model). Its partner transportation technology service TTS receives the traffic light data transmitted by the municipal traffic management center, and then transmits it to the Audi vehicle computer through an Internet connection (such as 4G / LTE) in real time to realize the traffic light prediction.
There is a function on the Audi car called "Green Light Countdown". As the name suggests, on the Audi virtual dashboard or head-up display, the driver will see the next traffic light when driving within the allowed speed limit. If not, the screen will display the remaining time to turn green. Through such a function, the driver can more effectively control the accelerator pedal of the vehicle.
Audi's first practical application
Such technology has high application requirements and involves many parties' cooperation. Therefore, it is generally applied in a pilot form, and Las Vegas becomes the first practical application city in the US market. In addition, Audi is also communicating with many cities in North America to gradually improve and popularize such infrastructure. Of course, Audi's goal is to provide this project service in as many cities as possible.
Know the traffic lights ahead of time
Through this technology, Audi said that there will be more comprehensive service and hardware cooperation in the future, such as engine start-stop technology, navigation and so on. According to Anupaum Malhatra, director of Audi's car networking, about 10 cities are considering using V2I. Why is Las Vegas the first? Because all target cities have strong Audi sales, and Las Vegas is one of them.
Traffic lights who control is important
At the same time, most of the traffic signals in southern Nevada, USA, are controlled by a single source, the Southern Nevada Regional Transportation Commission (RTC). RTC coverage includes 1,751 intersections, and each intersection may require as many as 20 to 30 separate traffic lights. Because the traffic lights here are controlled by an organization, it is the basis for Audi's easy implementation.
Is the actual performance really so good?
In the process of foreign media testing, some traffic lights in Las Vegas will last for 160 seconds. If you look down on the time of the vehicle, you will feel a little comfort. When the time counts down to 4 seconds, the countdown time on the display will disappear, at the same time alerting the driver to continue driving. The countdown time disappeared after 4 seconds left, which gives the driver time to start the engine (in the case of engine start-stop system start), then the traffic light turns green.
In addition, the system will tell the driver if the distant light turns red before the vehicle arrives. If the driver enters the left turn lane with the turn signal activated, the vehicle can distinguish between the wait time between the left turn signal and the adjacent straight light.
But in actual testing, there will still be some problems.
Of course, we will encounter other restrictions due to driving conditions. For example, walking on some limited speed roads, the system is linked to local speed limits, and when the speed limit is about 5 mph, the countdown on the vehicle's screen disappears. Foreign media said that if you drive at a speed limit on the road in Las Vegas, it will attract the contempt and horn of most people.
Is the symbolic meaning greater than the actual?
The problem with the Internet of Vehicles has actually been raised many years ago. In this regard, I personally said that the current situation of this function is still not mature enough, and the practicality is still not high, and it is basically difficult to benefit in China. This feature can only be implemented in some areas, especially in some areas with good traffic, such as some cities in the United States.
Where there are many traffic lights, where there are many cars, you can only wait for
If the traffic situation is poor, or a five-step road with a traffic light, this function is estimated to be more ribbed. In addition, from the current traffic jams in major cities in China, there are few car owners who benefit from this feature. Although in the case of green light, the owner of the car was blocked most of the time.
The traffic lights have no timing, this feature still has a role
In addition, on many roads in China, there are relatively new traffic lights that have countdowns, or traffic lights that do not count down. In the case of red lights, they will flash to indicate that there is still 10 seconds to turn green. If Audi can combine the navigation route and display the status of traffic lights along the road, this will be practical. In addition, the vehicle is in the speed limit section. From the perspective of vehicles tested in the United States, the speed of the speed limit section is exceeded, and the countdown will not be displayed. If the speed of the vehicle does not exceed the road limit, the traffic will be honked, which is obviously embarrassing.
Therefore, from the above situation, these technologies appear to be idealistic, but there are still some problems in practice. In the long run, in addition to predicting traffic lights, similar IoT can cover more unknown services. As for such black technology, do you think it will be popular?
Hey, forget to tell everyone that you want this black technology that predicts the traffic lights, you need an additional 199 US dollars to buy the function of the audio connect.
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