Military Technology

"After making up our mind, how to develop this robot dog became the key. After repeated discussions, we believe that we can mainly proceed from two aspects. One is the hardware aspect, that is, to create a machine with excellent performance in all aspects. Dog body.

This seems easy. After all, there are so many so-called robot dog technology products. We can definitely learn from them and develop one.

But in fact, those so-called robot dog technologies and products have something to learn from, but there are very few. The robot dogs currently on the market can only be called dog-like quadruped robots, or even quadruped robots. They do not seem to have any direct relationship with dogs.

So in this case, we have to start from scratch and design a real robot dog, not a four-legged robot. "

After Wu Hao finished speaking, various dog videos and photos were displayed in the air. Wu Hao smiled and opened a photo bubble that appeared in front of him, and then continued to speak to everyone in the audience.

"We know that there are many types of dogs, big ones, small ones, neither big nor small. Long-haired ones, short-haired ones, curly-haired ones. Long-legged ones, short-legged ones, bow-legged ones and so on.

However, when we remove the hair from these dogs, we can see that almost all dogs are basically the same in terms of body shape. It's just that due to differences in size and breed, the size, body shape, and length of these dogs are somewhat different.

From this, we can get a standard dog body structure model, and then we need to design the body of the robot dog based on this model.

It must have a head, a mouth that can open and bite and tear, sharp glasses, a nose with a keen sense of smell, ears with keen hearing, a flexible neck, a strong body, light and useful limbs, and someone who can Maintaining balance can also express the emotional tail. "

Hahaha……

After hearing Wu Hao's words, everyone in the audience laughed heartily.

Indeed, there are many functions of a dog's tail, but one function is recognized by everyone, and that is to express the dog's emotions. The dog's tail also has different reactions under different emotions of the dog, such as happiness, anger, alertness, sadness, etc.

Of course, the most important role of a dog's tail is to maintain balance while the dog is running at high speeds. Nowadays, many pet dogs have their tails cut off, which also causes these dogs to have an unstable center of gravity when running at high speeds and are prone to falling and falling.

When everyone's laughter gradually subsided, Wu Hao continued with a smile: "We can see that although these dog-like quadruped robots we have seen before can walk and run quickly, they walk very awkwardly. Their four legs do not feel light when moving, as if they are constantly beating the ground, vibrating loudly and making a lot of noise.

So how to make the robot dog we developed more flexible, lighter, faster, smoother, and more explosive. The quadruped movement structure of a dog-like quadruped robot is definitely not applicable, which means that we need to redesign a new robot dog limb movement system.

First of all, we need to understand the physiological structure of the dog's limbs. In fact, like all four-legged animals, they are divided into front feet and hind feet, or front paws and hind paws, and they can be divided into left paws and right paws according to the left and right.

From top to bottom, dog legs are divided into upper arms and thighs, elbow joints and knee joints, forearms and calves, wrist joints and ankle joints, and then there are dog claws, which can also be divided into palms and fingers.

The dog-like quadruped robots on the market actually have only two limbs, namely the upper arm (thigh), elbow joint (knee joint), and forearm (calf), missing the wrist joint and dog claws. , the structure is much simpler.

Therefore, this also leads to the poor cushioning ability of these dog-like quadruped robots on the market, making the body unstable when moving. In addition, there are no dog claws to adapt to the ground, which also causes these dog-like quadruped robots to have difficulty with the terrain. The ability to adapt is relatively poor. In addition, the ability to catch is also relatively poor. "

At this point, the dog in the air began to run in place in the air.

"In addition, we can see from the demonstration diagram that when a dog is running, its limbs, including the entire body and tail, are moving in a coordinated manner. When running, the dog's body will slightly shift to the left and right, keeping the body The center of gravity is stable. In addition, the tail also plays a great balancing role when running.

As for traditional dog-like quadruped robots, they only move their limbs, using their limbs to control the center of gravity of the body and maintain stability. There is no tail, so it has poor stability when running at high speeds.

In addition, the trunk of this type of dog-like quadruped robot is an overall rigid structure, which also causes the trunk to be relatively stiff when running. Therefore, this type of dog-type quadruped robot cannot keep its limbs in contact with each other when running. The body remains aligned and maintains the balance of the body. "

"So, we have to design a robot dog that conforms to the physical structure of a dog and has a flexible body like a dog. This is not just simulation and imitation. The purpose of our bionics is not to make it look like a dog, but to make it look like a dog. It is to give it the excellent athletic ability of a dog.

There is an essential difference between the two. The former is just a dog-like toy or a puppet. As for the latter, it is a robot with the excellent athletic ability of a dog, but it looks like a dog. "

At this point, Wu Hao waved his hand, and the suspended images in the air changed, and then said to everyone in the audience: "As you know, we have made some small achievements in the field of intelligent bionic robots."

After hearing Wu Hao's words, everyone in the audience chuckled. Is this called a small or big achievement? According to you, what is a big achievement? Mr. Wu, we can be humble, but don’t be too humble, otherwise it will become pride in disguise.

Therefore, in the development process of this intelligent bionic robot dog, many of our very mature technologies were used, but many of them cannot be used directly because we have higher performance requirements for this intelligent bionic robot dog.

For example, this intelligent bionic robot dog is equipped with a new generation of power joint system. It not only operates flexibly and can explode with powerful force in an instant, but also requires ultra-high control and operation accuracy.

In addition, the new generation of power joint systems also require ultra-high pressure resistance and ultra-long working life, which can maintain their operation for a long time and have a low failure rate.

It is even required that the new generation of power joint systems should be kept quiet during operation, and the noise should be controlled to less than 20 decibels, or even lower, to ensure that the robot dog equipped with the new generation of motion training system remains quiet during action. This One point is very important.