"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 four-legged robots, or even
Called a quadruped robot, it seems to have no 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, medium-sized ones, long-haired ones, short-haired ones, curly-haired ones, long-legged ones, short-legged ones, bow-legged ones, etc.
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. However, due to differences in size and breed, the size and body shape of these dogs
Fat or thin, there are some differences in length.
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 a keen sense of hearing, a flexible neck, a strong body, light and useful limbs, and something that 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 that is recognized by everyone is that it can express the dog's emotions. Under different emotions of the dog, the dog's tail also has different reactions, such as happiness, anger, alertness, etc.
Sadness etc.
Of course, the most important role of a dog's tail is to maintain the dog's body balance during high-speed running. 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 wrestling.
When everyone's laughter faded, 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 four-legged motion structure of a dog-like quadruped robot is definitely not applicable, which means
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 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 and use their limbs to control the body's center of gravity and maintain stability. They have no tail, so they have poor stability when running at high speeds.
In addition, the trunk of this kind of dog-like quadruped robot is an overall rigid structure, which also causes the trunk to be relatively stiff when running. Therefore, this kind of dog-like 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 want to design a robot dog that conforms to the physiological structure of a dog's body and has a flexible body like a dog. This is not just simulation and imitation. Our purpose of 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 toy or puppet that looks like a dog. The latter is a robot with the excellent athletic ability of a dog, but it looks like a dog."
Speaking of this, 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 some small achievements in the field of intelligent bionic robots."
Hearing Wu Hao's words, everyone in the audience chuckled. Is this 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 would really be 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, so that they can maintain long-term operation 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, so as to ensure that the robot dog equipped with the new generation of motion training system remains quiet during action. This