I Found A Planet

This side of the earth.

January 10, 20X9.

Baoshan Industrial Zone, Xinghai Company's R\u0026D factory.

After 45 days of intense research and development, the prototype of the "Wow Generation" sweeping robot was successfully built!

The progress is amazing!

Generally speaking, it takes about three months to develop such robots.

But the team of Su Youjie and Zhou Kun only took half the time.

The reason why their research and development efficiency is so fast is mainly due to three reasons:

One, the level and ability of this R\u0026D team are good, and everyone can be called a "great god".

Two, the product they want to develop is the design blueprint that Chen Jin directly took out, skipping the design and demonstration stage, saving more than half a month of time.

Three, during the forty days of research and development, Chen Jin helped them solve several major technical difficulties, so that no bottlenecks were encountered in the research and development process.

For example, Su Youjie and the others have been stuck on this problem for a few days in the "cleaning algorithm" of the high-definition camera system of the sweeping robot.

Because it is different from the traditional sweeping robot that scans the room layout with laser and then cleans it evenly.

During the sweeping work, the wow robot determines whether the floor is clean or not, and judges and compares it through the high-definition photos taken by the camera.

This will encounter multiple work scenarios.

For example, the materials, colors, and patterns of the floor are various, and some of them look like "dirty things", how to deal with them?

How to deal with the obstruction of personnel or large foreign objects?

What if the interior is carpeted or the layout is weird?

To what extent is it called true cleanliness?

In addition, how to arrange the working path of the sweeping robot is the most efficient, not to mention energy saving, but also to clean the floor.

All of the above problems have to be solved by programming algorithms.

It is too easy for a robot to sweep and mop the floor, but the difficulty lies in how to make it work better and smarter, while taking into account low-carbon and environmental protection... After all, it is equipped with a 10,000 mAh battery. It can only work continuously for 180 minutes.

So the hardware problem is not a problem!

Software algorithms are the main problem.

"Mr. 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 am currently learning the Ai graphics algorithm, but it will take at least a week before I can start trying to program. "

Su Youjie said that the technical route they are taking is something that other companies have not taken, so they will definitely spend a lot of time exploring.

Chen Jin directly gave him the solution to the problem:

"It's very simple to confirm whether the floor is clean. That is, when using the Wow robot for the first time, let Wow first follow the traditional uniform cleaning mode, clean it more than ten times, and clean the room until it is the cleanest! Then put it in the cleanest state. The shooting is saved and used for comparison, so that no matter what the room is, there is an optimal reference... There is no need for a big data picture system at all.”

"Of course, if the working scene of the Wow robot changes, it will return to the initial state for the first time, and clean out the cleanest model first."

Su Youjie nodded: "This idea is feasible. At least for more than 90% of household customers, the result of the first cleaning can be used as a model; if it is a corporate user such as a housekeeping company, we have to make customized adjustments."

In this way, Su Youjie successfully solved the "clean algorithm" problem based on image comparison.

But he immediately ran into a new problem.

That is the problem of "path planning", that is, after determining the distribution of dirt on the floor through the "cleaning algorithm", how does the sweeping robot plan the optimal path to clean it efficiently and quickly?

The traditional uniform cleaning is definitely not enough. Wawa robot must be able to do "focus on care" in dirty areas and "light cleaning" in clean areas, making choices like humans, so as to clean the floor the cleanest.

At the same time save time and effort.

And this "path planning algorithm" also stuck Su Youjie for four or five days, and he had no clue at all.

Because of this algorithm, the difficulty is to first three-dimensionalize the indoor scene based on the garbage distribution in the picture, and then build a mathematical model to derive a reasonable working path. This process is very brain-intensive.

As for this algorithm, Chen Jin brought over a typed page, densely packed with mathematical formulas, and placed it in front of Su Youjie.

After Su Youjie finished reading.

The face became excited.

His eyes were full of amazement, like enlightenment: "So it's like this? It's so subtle, it's so seamless!"

He turned his head to look at Chen Jin and said, "Mr. Chen, did you deduce this path algorithm? You are really amazing!" His face was full of admiration.

"no no."

Chen Jin waved his hands again and again: "This was given to me by an engineer from my dad's company. After I asked this question, he spent about an hour writing this paper for me." In fact, it only took less than a second. , This little problem, Alice solved it in an instant.

"One hour?!"

Su Youjie opened his mouth wide, with a look of shock on his face: "Da Niu, definitely a super Da Niu!"

But it also reminds me that the commercial aircraft company where Mr. Chen's father works is the only place in country Z that manufactures domestically produced large passenger jets. There are a lot of talented people in it. Solving the small problem of "path algorithm" is of course a small case.

Su Youjie couldn't help sighing: "There are people beyond people, and mountains beyond mountains. In front of those big cows, with my level of knowledge, there is still a lot of room for improvement."

I murmured in my heart: Hey, I don’t know, when will I be able to reach the level of that big cow?

It was after the mysterious big cow in COMAC helped solve several big problems.

On January 10th.

The first prototype of the "Wow Generation" sweeping robot was successfully built.

Then I immediately found a room and carried out a cleaning experiment.

The room used for the test was rented by Chen Jin at a monthly rent of 8,500 near the industrial zone. He arranged for Su Youjie and the others to live in a four-bedroom, two-living hardcover room.

"Whoah, get to work!"

At the order of the operator Zhang Zhiwei, the sweeping robot entered the automatic working mode.

Its bottom scroll wheel rotates, and the LDS laser ranging sensor is used to scan 360 degrees to construct a map of the entire room.

Then the starting working point is determined, and the internal high-speed brushless motor starts to drive the floating main brush to rotate, and the common garbage on the floor is sucked into the internal garbage box through the rolling vacuum cleaner in the middle of the chassis.

The wow robot in this working state is basically the same as the traditional sweeping robot.

Thirty minutes later.

Common rubbish cleaned up.

The next step is to clean the dust and stubborn stains.

This must be dealt with by "mopping the floor".

So, on the two mechanical arms of the wow robot, a stick-shaped brush was picked up.

The brush is wrapped with a thick wet towel, and the rod can be rotated.

When encountering a dirty place, just put down the wand, rotate the brush, touch the floor, and start mopping.

Since it is the first time to clean, the traditional path is also used.

After replacing the battery twice, dozens of brush heads, and cleaning it ten times!

The floor of the entire rented house emits white light, which can reflect a faint figure.

After some measurements with the instrument.

The girl Xiao Xiao said excitedly: "Mr. Chen, 99.6% of the garbage on the floor of the room has been cleaned up, which is very close to the design target!"

"Clean, really very clean!" Yang Qiuying also sighed.

"I've never seen such a clean room."

"This is just a prototype test, and there is still a lot of room for improvement. It is not impossible to clean up 99.6% of the garbage and achieve 99.9%!"

Chen Jin waved his hand and said, "Continue to test, we will all walk in with our shoes on, dirty the room, and do more tests!"

"yes!"

Everyone wore shoes and stomped on it, leaving a lot of dust and sludge on the floor.

Soon the second test of the prototype was launched, adopting a brand new "smart cleaning mode" to carry out focused cleaning and make more intelligent path planning.

After one hour.

99.6% of the floor litter was completely removed, even cleaner than the first test.

Then there are the third, fourth, and fifth tests... the results of each test are not lower than 99.7%.

Su Youjie said excitedly: "Mr. Chen, it's a success. We have successfully developed this sweeping robot!"

Zhou Kun also waved his fist and said, "It was so smooth and unexpected! It was a success in one experiment, it's so cool!"

"Not bad, cool, really cool!"

"Hahahahaha~"

Everyone laughed, and they were full of confidence in the potential market prospect of this sweeping robot!

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