I Found A Planet

On the side of the earth.

January 10, 20X9.

Baoshan Industrial Zone, Xinghai's R&D plant.

After 45 days of intense research and development, the prototype of the “Wow Wow Generation” sweeping robot has been successfully built!

Progress is fast!

In general, the development of such robots requires a period of time, usually around three months.

But Su Youjie and Zhou Kun, their team, only spent half of their time.

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

First, the level and ability of this R&D team is good, and everyone is called "Great God."

Two, the products they want to develop are the design drawings that Chen Jin directly took out, skipping the design and demonstration stage, saving more than half a month.

Three, during the forty-nine days of research and development, Chen Jin helped them solve several major technical difficulties, so that they did not encounter bottlenecks during the R&D process.

For example, the "clean algorithm" of the high-definition camera system of the sweeping robot, Su Youjie, they stuck in this puzzle for a few days.

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

Wow wow robots in the sweeping work, to determine whether the floor is clean or not, is a high-definition photo taken by the camera, to judge and compare.

This will encounter multiple work scenarios.

For example, the materials, colors and patterns of the floor are varied, and some of them look like "dirty things".

How to deal with the blockage of a person or a large block of foreign objects?

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

To what extent is it really clean?

In addition, the working path of the sweeping robot is most efficient in terms of how to arrange it, so that the floor is cleaned.

All of these problems must be solved by program algorithms.

It is too easy for a robot to realize the function of sweeping and mopping the floor. It is difficult to make it work better and smarter, and at the same time, it is also low-carbon and environmentally friendly... After all, with a battery of 10,000 mAh, it probably Can only work for 180 minutes.

Therefore, the hardware problem is not a problem!

Software algorithms are the main problem.

"Chen Chen, the robot you designed, the working method is too advanced, the high-definition photo comparison technology is one generation ahead of the traditional LDS laser planning. I am currently learning the Ai graphics algorithm, but it takes at least a week to start trying to program. ”

Su Youjie said that the technical route they took is something that other companies have not gone through, so it will definitely take a lot of time to explore.

Chen Jin gave him the idea of ​​solving the problem directly:

“Check if the floor is clean. It’s very simple. When you use the wow robot for the first time, let the wow first follow the traditional uniform sweep mode, sweep more than ten times, clean the room to the cleanest! Then put the cleanest state. The shots are saved for comparison, so that no matter what the room is, there is an optimal reference... there is no need to do big data picture system."

"Of course, if the working scene of the wow robot changes, return to the first initial state, first clean out the cleanest model."

Su Youjie nodded: "This idea is feasible. At least 90% of household customers can use the results of the first cleaning as a model; if it is a domestic company, we have to make customized adjustments."

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

But he immediately encountered new problems.

That is the “path planning” problem. After the “clean algorithm” is used to determine the dirty distribution on the floor, how does the sweeping robot plan the optimal path so that it can be cleaned up quickly and efficiently?

The traditional uniform cleaning is definitely not enough. The wow robot should be able to do the "focus on care" in the dirty area and "lightly clean" in the clean place, and choose the same as people, so that the floor can be cleaned the cleanest.

And this "path planning algorithm" also took Su Youjie four or five days, there is no clue.

Because of this algorithm, the difficulty is that according to the garbage distribution in the picture, the indoor scene is three-dimensionally three-dimensional, and then the mathematical model is established to derive a reasonable working path. This process is very brain-burning.

And this algorithm, Chen Jin took a page of prints, the above is a mathematical formula, placed in front of Su Youjie.

After Su Youjie finished reading.

The face became excited.

The eyes are full of surprises, like a slap in the top: "It turns out to be like this? It's too subtle, it's just seamless!"

He turned to look at Chen Jindao: "Chen Chen, is this path algorithm that you derived? You are so amazing!" His face is full of worship.

"no no."

Chen Jinlian waved his hand: "This was given to me by an engineer of my dad company. After I raised this question, he probably spent an hour writing this paper for me." In fact, it took less than 1 second. This little problem, Alice solved instantly.

"One hour?!"

Su Youjie opened his mouth and looked shocked: "Da Niu is definitely a super big cow!"

However, it is also believed that the commercial company where Mr. Chen’s father is located is the only place in Z country that makes domestic large passenger planes. The small number of people in the country are solved. The small problem of solving the “path algorithm” is of course a small case.

Su Youjie couldn't help but sigh: "There are people outside, there are mountains outside the mountains. In front of those big cows, I have a level of knowledge, and there is a lot of room for improvement and growth."

My heart murmurs: Oh, I don’t know, when will I reach the point where the big cow is the same?

Subsequently.

It was after the mysterious big cow in COMAC that helped solve more than a dozen problems.

January 10th this day.

The first prototype of the “Wow Wow” sweeping robot was successfully built.

Then I immediately found a room and conducted a cleaning test.

The test room was just rented by Chen Jin at the rent of 8500 yuan per month near the industrial area. I arranged Su Youjie to stay in a four-bedroom, two-bedroom renovated house. This suite is usually not cleaned very much. dirty.

"Wow, start working!"

The operator Zhang Zhiwei gave a command, and the robot swept the robot into the automatic working mode.

Its bottom roller rotates, and the LDS laser ranging sensor is used for 360-degree scanning to construct the entire room map.

Subsequently, the initial working point is determined, and the internal high-speed brushless motor is started 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 ground.

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

Thirty minutes later.

The common garbage is cleaned up.

Next is the cleaning of dust and stubborn stains.

This must be handled in a "drag" manner.

So, on the two robot arms of the wow robot, picked up a stick brush.

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

When you encounter a dirty place, wow, just put the stick down, then rotate the brush and touch the floor to start mopping the floor.

Because it is the first cleaning, the traditional path is used.

Replaced the battery twice, dozens of brush heads, and repeatedly cleaned it ten times!

The floor in the entire rented room glows white and reflects a faint silhouette.

After making some measurements with the instrument.

The girl Xiao Yu was excited and said: "Chen Chen, 99.6% of the garbage on the floor of the room was cleaned up, very close to the design indicators!"

"Clean, really clean!" Yang Qiuying also exclaimed.

"I have never seen such a clean room."

"We are still just a prototype test, there is still a lot of room for improvement, it cleans up 99.6% of the garbage, achieving 99.9%, it is not impossible!"

Chen Jin said with a big hand: "Continue testing, we all wear shoes to step on, dirty the room, do more tests!"

"Yes!"

Everyone stepped on the shoes and stepped on it, and got a lot of dust and sludge on the floor.

Soon the second test of the prototype was launched, and a new "smart cleaning mode" was adopted to carry out the key cleaning and make a smarter path planning.

after an hour.

99.6% of the floor waste was completely removed and was cleaner than the first test.

Then the third, fourth, and fifth tests... The value of each test is no less than 99.7%.

Su Youjie said with excitement: "Chen Chen, success, this sweeping robot, we have successfully developed!"

Zhou Kun also waved his fist: "It's too smooth, too unexpected! A trial is successful, it's so cool!"

“Good, cool, really cool!”

"Ha ha ha ha ha ~"

Everyone laughed, and the potential market prospects of this sweeping robot were full of confidence and confidence!