Director Li shook his head and sighed. Chen Yao was very leisurely. After dinner, he sat on the sofa in the living room and drank tea.

Qin Yunzi got up and went back to the room to take a shower and rest. Unlike a night cat like Chen Yao, she slept very early every day.

Lin Yuhan sat in the living room facing the notebook, writing novels, and the previous book had been sold to Li Chenguang. The book she wrote now also has a high probability of being changed to a film and television drama.

Suddenly, Chen Yao's cell phone rings, and the call is connected and placed in his ears. Professor Zhong Guoqiang's voice comes. Now he and his team are testing the unmanned vehicles nearby.

During the test on the city road, Chen Yao asked his address, then got up and walked out of the house wearing flip flops.

Nearby parks.

When he came to the park lazily in slippers, Chen Yao saw Professor Zhong Guoqiang and his team at first sight, and a Zhanlong electric car was parked on the side of the road.

Even though it's too late now, Professor Zhong is still working. He is very hardworking for a person in his sixties.

Chen Yao put a bottle of ice spring on him: "Professor, thank you for your hard work."

Zhong Guoqiang smiled faintly: "I am a car fan, and it is my honor to be able to personally participate in the research and development of Zhanlong unmanned vehicles."

Zhanlong Automobile is conducting night tests to test the safety of night driving under unmanned autonomous driving.

The sky blue body was empty inside. Zhanlong car just turned around the park east, south, west, and north and back to the far point.

Chen Yao said: "What level has Zhanlong Auto achieved now? Is it still l3?"

Zhong Guoqiang responded: "It's close to l4."

Autonomous driving is divided into five levels, from l1 to l5.

l1 is just the simplest assisted driving, relying on adaptive cruise.

You can only release your feet, but your hands cannot leave the steering wheel, and the driver also needs to control the car.

l2, semi-autonomous driving, but the driver still has to keep an eye on the driving situation of the car.

This kind of semi-autonomous driving is also the so-called driverless car that has been seen the most in insomnia and has been mass-produced.

When it reaches l3, it is highly autonomous driving.

Drivers don’t have to keep an eye on the driving situation. They can play games on their mobile phones and do something intimate with their lovers, but in some cases, they still need someone to control the car.

In other words, cars of this level cannot rely entirely on their autonomous driving, otherwise they will be just kidding their own lives.

Some companies have already achieved mass production of l3-level cars and have been launched on the market.

When it reaches the l4 level, companies around the world are testing. No company can do it, and no car models are launched on the market.

This is a higher level of autonomous driving. Drivers can not only release their feet and hands, but also their eyes do not need to look at the road surface.

Therefore, if you want to achieve unmanned driving, you must at least achieve the l4 level.

Now, the war dragon that Professor Zhong Guoqiang and his team are L4 Auto, and of course they are just tests, and there are still many problems.

If you really achieve l5, it will be completely autonomous driving. At present, l5 cars are just a legend.

No company in the world can do it. Not to mention mass production, there is not even a test car. It is just a beautiful fantasy and belongs to the black technology level.

Although l4 can also be driven by a driverless car, it can only be found in specific road sections, specific areas, and specific cities.

And the l5 car can handle it no matter how complicated it encounters, and it is safer than driving.

To implement l5 unmanned vehicles, the key lies in sensors and algorithms.

Zhong Guoqiang took a sip of ice spring: "The biggest problem at present is the sensor. Do you think our new generation of cars should be equipped with lidar?"

Many of the l3 unmanned vehicles sold on the market are not equipped with lidar, and some of them are finally removed after being installed.

Even Tesla's founder Boss Ma said that radar is useless and is not as reliable as a camera.

Zhong Guoqiang's R&D team encountered the same problem. Should we remove radars? Not only laser sensors, millimeter waves, ultrasonics, etc.?

Chen Yao smiled and asked back: "What do you think is the laser sensor useful?"

Zhong Guoqiang affirmed: "It must be useful, it's just a matter of big or small effects."

Laser sensors can emit something called "laser beam", which can use it to sense surrounding obstacles, distance, movement speed, etc., to the millimeters accurately.

However, the disadvantages of things that seem awesome are also very obvious.

It's too rigid and not smart at all.

An autonomous car was driving on the road, and suddenly a large plastic bag flew over...

Sorry, lidar cannot recognize what it is, it only knows how far it is and how big it is.

This will lead to a terrible consequence...

If an unmanned vehicle is driving on the highway, because a large plastic bag flies over, the laser sensor will recognize it as an obstacle and issue an emergency brake command.

A large truck behind suddenly rushed up and directly hit the rear of the unmanned vehicle.

It was a plastic bag, but it caused a serious accident.

Not only lasers, other millimeter waves, ultrasonic waves, etc. can only detect but cannot be recognized.

However, the camera can identify what the object is. It is just a plastic bag, so it's OK to just drive it over without worrying about it.

Many autonomous vehicles do not carry laser sensors, and there is another reason, the cost, a laser sensor costs $10,000.

It consumes a lot of money for a sensor, which increases the cost of the car, and is not worth it.

Instead, the camera costs only $5, and it can also achieve the capabilities that laser sensors cannot do.

After careful consideration, Chen Yao said: "Although the laser sensor is not perfect, it is useful after all and needs to be installed. But the recognition of the camera will be given priority."

In other words, cameras are the main force of unmanned driving, and lidar and millimeter-wave radar are just auxiliary.

The camera is not perfect either. Behind it is an AI algorithm. Since it is an algorithm, there will be errors, especially the current artificial visual recognition, which cannot be completely as smart as humans.

It is still of great value to reduce the price of laser sensors.

Zhong Guoqiang asked: "How do you solve the cost problem?"

"I decided." Chen Yao snapped his fingers: "We independently developed laser sensors, which not only have stronger performance, but also have lower costs."

Since the debugging of the sensors on the market is not ideal, we can simply develop them yourself and develop more advanced radars.

Chen Yao's lips curled up: "I will upload the scientific research materials to the 'Super Fast Learning Platform' later, so that the researchers can learn it, and it will be done soon."
Chapter completed!