Genius is just the threshold for me!

Compared to the supersonic Hot Air, which can reach speeds of several Mach, this mechanical dog, with a top speed of only 90 kilometers per hour, is relatively easy to assemble; all you need to know is how to tighten screws.

Apart from the limb joints, hydraulic shock absorbers, lumbar balance joints, and the heat dissipation system, which require some craftsmanship and were done by Lin Dong alone, the remaining parts were completed by the two of them.

"Alright, now that we've installed the cooling duct, we can start flashing the system."

Lin Dong picked up the screws and installed the soft, heat-dissipating air ducts on the mechanical dog's head, disguising them as the wrinkles of a dog's skin.

In this way, when the robot dog runs at high speed, the airflow will blow in through the air duct and pass through the radiator, carrying away the waste heat generated by the operation of the entire robot dog.

As for the mechanical dog's cooling system, Lin Dong directly adopted the refrigerant compression cooling system commonly used in new energy vehicles in later generations.

The rotary miniature compressor, equipped with refrigerant piping, directly contacts the core chips, motherboard, motor, electronic control chips, and battery for cooling, which is sufficient to meet the heat dissipation requirements of long-term maximum power operation.

"Lin Dong, how far can it run?"

Xu Qingling helped install the cooling duct. Looking at the mechanical dog that stood up to her knees, which had no fur or tail but looked round and honest, her eyes were already overflowing with anticipation.

"Made entirely of PEEK material, weighing only 35 kilograms, and equipped with a 1.2 kWh battery."

充满电极速90公里时速可以跑40公里，时速60公里左右大概可以跑65公里，时速60公里以下可以跑100公里，要是就走路遛狗可以走150公里……」

Lin Dong briefly explained the range under different speed conditions.

Compared to the rolling mode of wheels, the non-wheeled mode of running on all fours is much less efficient.

Furthermore, the multiple drive motors reduced overall efficiency, resulting in low performance and power-to-weight ratios for semiconductor chips in this era…

The overall battery life of the robotic dog was far from what he had expected.

If it is a new energy vehicle, a 2.5-ton new energy vehicle in the future can consume 14 kilowatt-hours per 100 kilometers at a speed of less than 60 kilometers per hour.

Converted to a weight of 35 kg and a battery of 1.2 kWh, the range is 610 km for distances under 60 km.

However, here, the range is limited to 100 kilometers for distances below 60 kilometers, which is only 16.3% of the range of a new energy vehicle with the same weight and 16.3% of the battery capacity.

The 83.7% difference in range is due to the inefficient use of non-wheel-drive modes, the reduced efficiency of multiple drive motors, and the limitations of current low-efficiency chips.

"Walk 100 kilometers."

Xu Qingling quickly did the math in her head and exclaimed with delight, "So that means if I walk for an hour a day, covering 5 kilometers, a full charge will last me for more than half a month?"

"Not that long."

Lin Dong smiled and shook his head: "Due to the nature of chemical batteries, they will naturally lose power during storage, probably in 7 to 10 days."

"That's still amazing!" Xu Qingling wasn't picky at all.

The two chatted for a while, and soon Lin Dong had finished flashing the system onto the mechanical dog.

Then, based on the actual installation angles of the camera and ultrasonic obstacle avoidance device, the actual parameters are readjusted, and the entire mechanical dog can then be formally tested.

"Wangcai, bark twice."

Lin Dong put away the high-speed serial cable, covered the protective cover of the interface, pressed the power start switch, and shouted a command while looking at the mechanical dog in front of him.

"Woof woof! Master!"

The mechanical dog's mouth moved, and an electronic sound came from the speaker installed inside.

"Sit up," Lin Dong called out.

Nourishing~

A very faint sound of the motor running.

The mechanical dog immediately raised its front half and then squatted on the ground with its hind legs, making a standard but mechanical dog sitting posture.

"Shake your body and do a belly dance while sitting," Lin Dong continued the test.

Noisy!

Zizi!

The balance guide motor in the waist started to operate, and the mechanical dog's belly began to twist, and its front legs also began to dance. Although the whole dance movement looked mechanical, it was already very smooth.

"not bad."

A hint of satisfaction appeared in Lin Dong's eyes.

Although he was very dissatisfied with the battery life due to the battery technology, its agility was much better than the mechanical dogs he had seen in his previous life.

In the past, mechanical dogs were generally flat mechanical dogs, with only their limbs able to move, while their waists were a single piece.

Without a waist to enhance balance and coordination, the robot dog's turning and running movements would look strange, while also reducing its agility and speed limits.

To address this issue, Lin Dong specifically improved the waist movement structure by adding two powerful waist balancing motors.

Although this increases the overall hardware manufacturing cost by 30%, and without using PEK material throughout, the cost can soar to 8000 yuan without considering R&D and system costs, it also makes the mechanical dog's motion model dozens of times more complex.

But it seems that the results are quite good.

As for costs, Mr. Lin has plenty of money.

Debugging the motion model is a piece of cake.

Finally, thanks to the added waist movement balance design, the overall movement is smoother, and the efficiency of the entire system has been improved significantly.

"Come on, I'll teach you how to use it..."

"Also, you should bind and record a voiceprint. That way, the mechanical dog will only listen to you from now on, and no one else can command it."

Lin Dong played around with it for a while, and seeing Xu Qingling standing next to him with a look of longing but not daring to make a sound to disturb her, he smiled and gestured for her to come over, and began to teach her how to play and bind her voiceprint.

Because the mechanical dog was intended as a gift for Xu Qingling.

Lin Dong specially added a small voiceprint recognition system inside the mechanical dog, specifically for recognizing Xu Qingling's voiceprint commands.

To prevent the girl from taking her dog out for a walk one day, only to find that the dog has been taken away by someone else.

As for the price of the voiceprint recognition module...

It's alright, 58,000, which is a little more than the cost of seven regular mechanical dogs.

But compared to his hot-blooded flagship, even building a control vertical wing would be a stretch.

Sigrún has taught at the Iceland University of the Arts as a part-time lecturer since and was Dean of the Department of Fine Art from -. In – she held a research position at Reykjavík Art Museum focusing on the role of women in Icelandic art. She studied fine art at the Icelandic College of Arts and Crafts and at Pratt Institute, New York, and holds BA and MA degrees in art history and philosophy from the University of Iceland. Sigrún lives and works in Iceland.

Because Chengdu is located in the southwest, the sun always sets an hour later than the East China Sea.

Just after seven o'clock in the evening, the setting sun had just dipped below the top of the western mountain, and the remaining afterglow of the sunset burned two-thirds of the sky red, covering the entire earth.

"Wangcai! Go! Go! Go! Get out of the way, there's a flower bed ahead!"

A group of Chengdu Aircraft Industry Group (CAC) employees, who had been busy all day and were having dinner in the canteen before heading home, were suddenly attracted by a cheerful shout as they passed through the outer area of ​​the base.

Everyone looked in the direction of the sound.

Soon you'll see a girl in a Shishi Middle School uniform running happily across a golden sunset-colored field, chasing after an adult Chinese rural dog.

The evening breeze ruffled the hem of her clothes, and her waist-length hair, tied in a high ponytail, swayed as she ran.

The Chinese rural dog in front of her moved its limbs to avoid one obstacle after another in response to her calls.

Although the body may occasionally stagger unsteadily, before it falls, the motor will suddenly generate torque, and with a twist of the waist, the body will quickly regain stability.

"Holy crap—"

At this moment, Li Tao, Zhang Yihao, Su Yue, Huang Qingyao and other friends were about to take Xia Ran to the security department to apply for an outer pass when they suddenly saw Xu Qingling chasing a dog out of the base. Everyone stopped in their tracks.

"Xu Qingling, when did you get a dog?"

Li Tao exclaimed in surprise, somewhat incredulous, "Are dogs allowed inside the base?"

"Wait, is that a mechanical dog?"

At this moment, Huang Qingyao noticed the unusual motor sound, and upon closer inspection, she seemed to have discovered something remarkable.

"Wangcai, slow down and stop, come back!" Xu Qingling shouted.

Nourishes—

The running mechanical dog slowed down, ran a dozen meters, stopped, turned around, turned its head left and right, and the cameras in its two eyes scanned everyone.

The next moment, it recognized Xu Qingling's figure and ran back to her side.

"So handsome!"

Su Yue immediately went over and looked at the mechanical dog that was obediently standing next to Xu Qingling, and quietly reached out to pet it a few times.

"When did Chengdu Aircraft Industry Group (Chengfei) get a mechanical dog?" Huang Qingyao ran over, looking somewhat envious.

"The product that Uncle Lin researched was just made this evening."

Xu Qingling calmed her rapid breathing from running, tucked a strand of hair that had blown in front of her back, and explained with a smile, "The testing department just closed, so they didn't install any sensitive equipment and let me play with it, and do some training tests while I'm at it..."

"Uncle Lin...is Lin Dong's father?" Xia Ran walked over and asked instinctively upon hearing this.

"Uncle Lin's new product is still a mechanical dog... Is it similar to the previous swarm drones, equipment made for the army?"

At this moment, Li Tao and Zhang Yihao also came over.

Li Tao stroked the dog's head, then seemed to realize something, his eyes widening as he said, "Wait... a mechanical dog? Last time, Uncle Lin developed a swarm drone that was used as the queen bee by the army, so this time Uncle Lin will become the dog king?"

ga-

Another exit next to the base.

Lin Weiliang, dressed in his work uniform, came out after get off work. When he heard the words "Dog King," his ears twitched involuntarily, and he turned his head to look in this direction.

When he saw Xu Qingling and her group, and especially when he saw the mechanical dog made entirely of PEek material standing next to Xu Qingling, his expression went from stunned to surprised, and finally to falling silent...