Why is more and more brands, standing on the opposite of Tesla?

Recently, there is more intense trend on Tesla’s negative trends, and all of this is also implicated from automatic driving discussions. It coincides with the new energy and intelligent year of many car brand layout this year, and there is a focus on the discussion, including – laser radar.

Musk once said: “Lidar is a fool’s errand!” “More clearly said” Automatic driving is over! ” He is still claiming that there is no laser radar. Tesla only needs to use the camera and radar (Radar) sensor, you can observe four road conditions like people.

However, in the Shanghai Auto Show this year, we have seen more and more models of laser radar appearing. In the new forces, 蔚 来 ET7, polar fox alpha s, Xiaopeng P5 announced that it will be equipped with laser radar. If you want to say that these are new forces, just discuss a head. That can, let us temporarily ignore Tesla is also a new force, look at the independent brand camp and luxury brand camp.

In the self-primary brand, WEY’s “coffee camp” such as Mocha, laser radar, luxury camp, BMW IX This intelligent BMW model, which will also be equipped with a laser radar on the car so that the vehicle can make a more rapid response during automatic driving. It is not difficult to see that in addition to Tesla, most layout intelligent car brands have stood in the laser radar camp.

After understanding the current status of the current laser radar, we may wish to first Come understand what is laser radar, what is its principle? After this, we may understand why Tesla gave up the laser radar, and many brands stood again to its opposite.

For the understanding of the principle of laser radar, we may wish to simply compare them, similar to the bat echo positioning. However, it is different that laser radar is used in “sound” to measures the distance between the car and obstacles. In summary, a vehicle is laser radar, which transmits a laser beam in a four-week, and draws a 3D model of the surrounding environment by reflecting signals, thereby obtaining a higher precision distance, angular measurement, and real-time 3D model.

The laser radar is simply tailored to automatic driving volume, but why is it from Tesla? There are two reasons: one, the laser radar is not perfect, it is easy to be influenced by the weather, in a harsh environment, such as rain and snow, the body that is covered by the rain or wind, and even the small running at high speed Insect corpses, it is possible to have a greater impact on the ranging from laser radar.

Second, laser radar is very expensive! Even if it is developed today, the laser radar has dropped from the original 70,000 yuan of dollar to today’s less than 10,000 yuan, but it is still significantly higher than other products, and the cost of 100 US dollars from the vehicle enterprises is even more far. There is no less expensive reasons: technical factors, production efficiency and order scarce. The front is very well resolved, the key is that the last point, the main market of the current laser radar is mainly based on the automotive market, it is difficult to get a large-scale order.

By the following table, it is actually a more intuitive feeling. From a comparison, laser radar and other sensors can be described as good as possible, and it is difficult to say to each other, but it is certain that Tesla is so absolutely like this.

Taking Tesla automatic driving sensor as an example, it uses camera + millimeter wave radar, it is the advantage of low cost, Effectively decreaseCost and car prices, and can identify color, easy to place, long-distance, and imaging visualization, simply, is fast. But the key is – a lot of time and instances need to be learned.

For this reason, Tesla needs to sell a car quickly, let a large number of vehicles run on the road, resulting in a large amount of data optimization Its automatic driving algorithm allows yourself to completely form a fast-molded automatic driving assistance system. So, even though Tesla is ridiculed by laser radar, but it cannot deny that it is not perfect for automatic driving.

Further, from the actual perspective, the laser radar has an important role in replacing the millimeter wave radar + camera. The current best light can identify an object that is only a few centimeters of an object, which can distinguish between objects and pedestrians, and can even distinguish between pedestrians and motors. And it is very low on the computer, and there is no doubt when the current automotive computer is limited.

In the present, there is a large number of domestic self-brand and new forces, and the team laser radar is stationed. In the international, some luxury brands, including BMW, also selected laser radar. More importantly, there are more than 90% of the California, and the automatic driving company of California DMV road test license believes that laser radar is a must-have key to high-order automatic driving. So Waymo, Cruise, Baidu, Xiaoma Zhiquan, etc., all companies that receive unmanned public road test licenses are all equipped with self-research or foreign laser radar.

maybe in the future, Tesla can indeed make It is an ideal, perfect sensor to achieve perfect automatic driving. But I also have reason to believe that the cost of laser radar has been greatly reduced, and its advantages will be more obvious, and Tesla’s cost advantage will be further weakened.

(picture source network, intrusion)