I can upgrade the shelter

Although the difficulty in designing the exoskeleton's mechanical structure troubled Chen Xin, it wasn't actually hard to solve this problem.

The proper method would be to send this problem to a national research institution and let the specialists in the relevant fields perfect the design.

After all, it's not something overly complex or requiring high technical demands. In exoskeleton development, joint design is indeed a major issue, but it's not an unsolvable one.

The country already has mature wired exoskeleton designs and related R&D experience, so adapting them shouldn't be a big issue.

An even more effortless and worry-free approach would be to use a system upgrade. After all, since Chen Xin needed to solve the exoskeleton's energy issue, he would be using the system's upgrade function anyway, so optimizing the exoskeleton's mechanical structure would be just a matter of convenience.

However, this time, after upgrading the energy of the exoskeleton, which involved high-performance rechargeable batteries, Chen Xin didn't continue using the system's upgrade function to optimize the exoskeleton's structure.

While this was indeed a very simple matter, Chen Xin felt that constantly relying on the convenience brought by system upgrades would make him lazier and his thinking more dulled.

It's like playing a game with cheats enabled. After changing it to a one-hit kill, you no longer think about how to take down an enemy, what the enemy's attributes and weaknesses are because, to you, it's just a minor task.

An originally formidable enemy turns into a fragile porcelain doll that falls with a single touch, and the game itself loses its challenge and a significant part of the immersive experience for you.

For Chen Xin, he actually hoped to solve problems using his own abilities rather than relying on the system for everything.

After all, the problem is just with the mechanical exoskeleton's joint structure, which is something Chen Xin could solve with his capabilities. If he really couldn't solve it, of course, Chen Xin wouldn't hesitate to use the system's upgrade abilities.

But for now, he wanted to attempt to solve the problem himself.

In essence, the system only provides an upgrade plan according to Chen Xin's ideas. If Chen Xin's mind has no ideas, even the system would find it difficult to function.

So, not relying on the system and solving problems on his own, training his thinking ability, seemed necessary to Chen Xin.

Moreover, ultimately, this problem isn't hard to solve. Either use wear-resistant materials for spherical joints or use more flexible structural designs, both of which are solvable with Chen Xin's existing capabilities.

However, while Chen Xin was seriously researching the exoskeleton's mechanical structure and thinking about how to solve the problem, Mo Qingyan approached him.

"A Xin, the vegetables in the greenhouse this month are ready for harvest. Should we trade with the SWAT team like before?" Facing Chen Xin, Mo Qingyan's expression was slightly cold, and she didn't call him by his nickname as she used to.

Although Chen Xin understood the reason for Mo Qingyan's cold attitude towards him, he didn't say much, just nodded and replied, "Let's stick to the usual process."

"But this month's yield is at least double that of last month. The SWAT team might not be able to consume so much!" Although Mo Qingyan was a bit cold towards Chen Xin, it didn't affect her handling of specific matters.

Hearing this, Chen Xin realized that before leaving, he upgraded the planting greenhouse from the original 200 square meters to 600 square meters. Last month, since the upgrade was just completed, two layers of the six-layer stereoscopic structured planting greenhouse's hydroponic planting trays were planted with rice, one with fruits, and one with various vegetables, while the other three layers were vacant, so the yield didn't increase.

But last month, after delivering that month's output to the SWAT team to repay the materials Chen Xin owed previously, Mo Qingyan also planted crops on the three vacant layers of the planting trays in the greenhouse, leading to the vegetable yield tripling this month.

Originally, when Chen Xin left, one-fourth of a planting layer was planted with carrots, one-fourth with cabbage, one-fourth with lettuce, and one-fourth with strawberries, and there was no plan for the vacant three layers.

After one harvest, Mo Qingyan adjusted the four layers of planting trays, not touching the carrots and strawberries, but planting two other crops with longer growth cycles among them, relocating the cabbage and lettuce planting to the vacant two layers, filling each completely, and planting peppers on the last layer.

For people from Xiang Province, a meal without peppers is truly tasteless.

Previously, there wasn't the condition to grow peppers, so it wasn't demanded. After all, when you can't fill your belly, who cares about what they eat?

However, with Chen Xin, Mo Qingyan obviously didn't need to worry about having enough to eat. Seeing some pepper seeds, she planted a whole layer.

When Chen Xin returned, he already knew about this but had no objections. Although Mo Qingyan's planting plan deviated from what he had envisioned, it wasn't unacceptable. After all, Chen Xin, though a native from Anhui Province, had lived in Xiang Province for decades and also liked eating spicy.

Moreover, peppers, as an indispensable ingredient for Xiang Province people, even if not consumed by himself, are a hard currency that can be sold outside. No matter how hard he thought about it, Chen Xin couldn't let these things go to waste.

Of course, these matters can be addressed later, but now Chen Xin had to face the fact that the yield had tripled, equivalent to four times the original vegetable yield.

Chen Xin didn't doubt whether the SWAT team could consume this amount of vegetables. Such a large SWAT team would definitely finish the vegetables, and if not, there would still be other departments of the city police bureau. The city's police bureau shelter could effortlessly consume this output.

However, giving away so many vegetables for free wasn't feasible for Chen Xin, so figuring out what to trade for became an issue for him to ponder.

For the current Chen Xin, having established cooperation with the state, acquiring any materials wasn't an issue. When he needed carbon fiber materials for making Qin Lan's second prosthetic limb, the research institution he collaborated with provided them without hesitation, so Chen Xin wasn't truly lacking materials.

As for basic materials, after the overall upgrade of the shelter, entering a state of no worry regarding food and clothing, Chen Xin wasn't too enthusiastic about them either.

With the current scale of the shelter already sufficient, there was no need for further expansion. Even if upgrades were considered, it would be about gradually improving the technology level and comfort, so he had no interest in construction materials and metal materials.

Moreover, the increased amount of materials that could be exchanged for the original fourfold yield was substantial. Directly exchanging them for construction materials could fill the warehouse.

So, what should be exchanged for? Or should some of these vegetables not go entirely to the SWAT team, and have Li Yulong help sell a portion?