On Earth.
January 10th, 20X9.
Bao Shan Industrial Zone, Xing Hai Technologies' R&D factory.
After 45 days of intense research and development, the prototype of the "Wa-wah First Generation" cleaning robot was successfully built!
The progress was godly!
Generally speaking, the research and development of this type of robot would take about three months.
But Su You Jie and Zhou Kun's team only took half the time.
There were three main reasons why their research and development efficiency was so fast.
First, the standard and ability of this research and development team was good. Every one of them could be called a "god."
Second, the product that they wanted to develop was a design blueprint that Chen Jin provided directly. It skipped the design and demonstration stages, saving them more than half a month's time.
Third, in these 40 days of research and development, Chen Jin helped them solve several major technical difficulties, so that they did not encounter any bottlenecks during the development process.
For example, the "cleanliness algorithm" of the cleaning robot's high-definition camera system. Su You Jie and his team were stuck on this problem for a few days.
This was because it was different from the traditional cleaning robot that used radar to scan the layout of the room and then sweep it evenly.
In the process of sweeping, the Wa-wah robot determined whether the floor was clean or not. It judged and compared the high-definition photos taken by the camera.
There would be many working scenarios during this process.
For example, the materials, colors, and patterns of the floor. How would they deal with some of the "dirty things"?
How would they deal with people or large foreign objects?
What if the interior was carpeted or the layout was strange?
How to clean to what extent could it be considered truly clean?
In addition, how to arrange the cleaning robot's working path in the most efficient way? Not only did it save energy, but it also had to clean the floor.
All these problems had to be solved through programming algorithms.
It was too easy to make a robot sweep and mop the floor. The difficult part was how to make it do its work better and more intelligently. At the same time, it was low-carbon and environmentally friendly. After all, with a 10,000 milliampere battery, it could only work for 180 minutes.
Hence, the hardware problem was not a problem!
The software algorithm was the main problem.
"Chief Chen, the working method of the robot you designed is too advanced. The high-definition photo comparison technology is a generation ahead of the traditional LDS laser planning. I've been learning AI graphics algorithms recently, but it will take at least a week before I can start programming," Su You Jie said.
The technical route that they took was not taken by other companies. Hence, they would definitely spend a lot of time exploring it.
However, Chen Jin directly gave him an idea to solve the problem.
"It's very simple to confirm whether the floor is clean or not. When you use the robot for the first time, let Wa-wah follow the traditional uniform cleaning pattern. Let Wa-wah clean more than ten times until the room is as clean as it can be! Then, take a picture of the cleanest state and save it for comparison. This way, no matter what room it is, there will be the best reference … There's no need for a big data image system. "
"Of course, if the working environment of the robot changes, it will return to its initial state. It will first clean the cleanest sample."
Su You Jie nodded. "That's a good idea. At least for more than 90% of home customers, the results of the first cleaning can be used as a model. If it's a housekeeping company or a corporate customer, we'll have to make custom-made adjustments."
Just like that, Su You Jie successfully solved the "clean algorithm" problem based on image comparison.
But he immediately ran into a new problem.
That was the "path planning" problem. After using the "clean algorithm" to determine the distribution of dirt on the floor, how could the robot plan the optimal path so that it could efficiently and quickly clean the floor?
The traditional uniform cleaning method was definitely not feasible. The robot had to be able to "prioritize" the dirty areas and "lightly clean" the clean areas. It had to make choices like a human. Only then could it clean the floor to its best state.
Su You Jie had been stuck on this "path planning algorithm" for four to five days. He had no clue at all.
The difficulty of this algorithm was to first create a three-dimensional image of the indoor scene according to the distribution of the trash in the image. Then, he had to build a mathematical model and derive a reasonable working path. This process was very brain-wracking.
As for this algorithm, Chen Jin brought over a printed page filled with mathematical formulas and placed it in front of Su You Jie.
After Su You Jie finished reading it.
His face became excited.
His eyes were filled with amazement as if he had been enlightened. "So this is how it is? It's so exquisite, it's practically flawless! "
He turned to look at Chen Jin and said, "Chief Chen, did you derive this path planning algorithm? You're really amazing! "His face was full of admiration.
"No, no." Chen Jin waved his hands.
"This was given to me by an engineer from my dad's company. After I raised the question, he used about an hour to write this paper for me." Actually, it only took less than a second. Alice solved this small problem in an instant.
"An hour?!"
Su You Jie's jaw dropped. His face was full of shock. "Big shot, definitely a super big shot!"
But then he thought of the company that Chen Jin's father worked for. It was the only company in Z country that manufactured large domestic passenger planes. There were many big shots there. Solving a small problem like the "path planning algorithm" was definitely a small case.
Su You Jie could not help but sigh. "There's always someone better than me. In front of those big shots, there's still a lot of room for improvement and growth."
He murmured in his heart, "Sigh, I wonder when I can reach the level of that big shot?"
Soon after.
It was the mysterious big shot from Shang Fei Company who helped him solve more than ten difficult problems.
On the 10th of January.
The first prototype of the "Wa-wah First Generation" robot was successfully built.
Then, it immediately found a room to conduct a cleaning test.
The room used for the test was rented by Chen Jin near the industrial zone for $8,500 a month. It was a well-decorated house with four bedrooms and two living rooms. The room was not usually cleaned, so it was very dirty.
"Wa-wah, start working!"
Under the command of operator Zhang Zhiwei, the "Wa-wah" robot entered automatic working mode.
Its bottom wheel rotated. First, it used the LDS laser rangefinder to scan 360 degrees to build a map of the entire room.
Then, it determined the starting point. The internal high-speed brushless motor started, driving the floating main brush to rotate. The common trash on the floor was sucked into the internal trash bin through the rotating vacuum cleaner in the middle of the site.
The Wa-wah robot in this working mode was basically no different from a traditional cleaning robot.
30 minutes later.
The common trash was cleaned.
Next, it was time to clean the dust and stubborn stains.
This had to be dealt with by "mopping the floor."
Thus, the robot picked up a rod-shaped brush on both of its mechanical arms.
The brush was wrapped in a wet, thick towel, and the rod could be rotated.
When it encountered a dirty area, Wa-wah only needed to put the rod down, rotate the brush, and touch the floor. Then, it could start mopping.
Since it was the first time it was cleaning, it used the traditional path.
After changing the batteries twice, using more than 10 brush heads, and cleaning 10 times!
The floor of the entire rented house emitted a white light, reflecting a layer of faint human silhouettes.
After a series of measurements with the equipment.
The girl, Xiao Xiao, said excitedly, "President Chen, 6% of the trash on the floor has been cleaned. It's very close to the design target!"
Yang Qiuying also sighed. "Clean, really very clean!"
"I've never seen such a clean room before."
"We're only testing the prototype. There's still a lot of room for improvement. We've already cleaned 6% of the trash. It's not impossible to achieve 9%!"
Chen Jin waved his hand and said, "Continue the test. Let's put on our shoes and walk around. We'll dirty the room and do a few more tests!"
"Yes!"
Everyone stepped on their shoes and walked around, leaving a lot of dust and mud on the floor.
Soon, the second test of the prototype began. It adopted a brand-new "smart cleaning mode" to carry out focused cleaning and made a more intelligent path planning.
An hour later.
6% of the trash on the floor was completely cleaned. It was even cleaner than the first test.
Then, it was the third, fourth, and fifth test. The result of each test was not lower than 7%.
Su You Jie said excitedly, "President Chen, it's a success. We've successfully developed this model of cleaning robot!"
Zhou Kun also waved his fist and said, "It's too smooth, too unexpected! It's a success on the first test. This is too cool! "
"Not bad. Cool, really cool!"
"Hahahahaha!"
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