Doomsday Bunker Upgrade

Chen Xin finally persuaded Qin Lan to agree to stay and take care of her shelter instead of traveling thousands of kilometers with him to go back to his hometown to pick up someone.

As for Chen Xin's method of persuading Qin Lan, it was natural for her to see the various weapons and equipment he had prepared on the tracked armored RV.

Looking at the radar, drones and heavy machine guns installed by Chen Xin in the car, Qin Lan knew that these things were enough for Chen Xin to protect himself along the way, as long as he didn't go to the army to get a hardtop, ordinary robbers or something , can't help his armored car at all.

The only thing that worries Qin Lan is that Chen Xin is only alone, and if something happens on the road, he may not be able to deal with it in time.

But this is not a problem at all, Qin Lan did not continue to insist that he must accompany Chen Xin on this trip, so after Chen Xin displayed the weapon on the car, Qin Lan did not continue to struggle.

And what Chen Xin said also made sense. It might be a month or two after he left, and she had to help Chen Xin look after his home.

With Qin Lan to help with the housekeeping, and Mo Qingyan and Mo Qingxin to take care of it, Chen Xin has no worries about his own home.

Now we just have to wait for the entire shelter to be upgraded and the ground source heat pump required by the city to be manufactured before we can set off.

In order to prepare for the upgrade, Chen Xin took a shower at night and went to bed early to give himself a good state, waiting for the overall upgrade of the shelter after getting up early tomorrow.

Qin Lan had already moved to his room, but neither he nor Qin Lan said that they wanted to do some intimate acts this evening. Chen Xin climbed onto the upper bunk and fell asleep quickly.

Qin Lan slept in the lower bunk, and fell asleep quickly after listening to Chen Xin's even breathing after falling asleep on the upper bunk, but the corners of her mouth were slightly raised, with a satisfied smile on her face.

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The next morning, Chen Xin got up very early, even earlier than Qin Lan, who always got up early.

After washing up and making breakfast, Chen Xin called Qin Lan up.

Ding Ning had to go back to the city bureau to report the situation yesterday, so he left with Li Tou and the others yesterday, leaving only Qin Lan to stay with Chen Xin because he was still on vacation.

So breakfast this morning was just the two of them.

After eating the porridge that Chen Xin specially added with chopped ham, Qin Lan asked Chen Xin, "A Xin, you said that you are going to start remodeling your home today, so how do you plan to start? Is there anything you can do for me?"

"Where to help? There's nowhere to help. I've already completed most of the renovation work. The reason why I didn't finish it before was because I didn't have enough materials." Chen Xin heard Qin Lan say he wanted to help, and after thinking about it, he declined Her kindness: "Now that the city government has sent the materials, I am enough alone. Alan, please rest well today."

After finishing speaking, Chen Xin cleaned up the table, and then went to the storage room alone.

Qin Lan heard Chen Xin say that he didn't need his own help, and he didn't force it, but turned on his game console, ready to take a good rest today as Chen Xin said.

Chen Xin, on the other hand, came to the storage room, looked at the materials that filled the storage room, and prepared to start the overall upgrade of the shelter.

Opened the system interface, and controlled the mind to focus on the entire refuge. The system interface also displayed the options for the overall upgrade of the refuge.

"Simple Shelter"

"Upgrade plan 1: Upgrade the shelter's protection level, improve the shelter's ability to prevent disasters, improve the comfort of survival, the overall technology of the shelter is +1, and the required survival points for the upgrade are 12,000"

"Upgrade plan 2: Expand the living space of the shelter, increase the number of people that can be accommodated in the shelter, improve the material support capacity of the shelter, the number of people in the shelter is +5, and the required survival points for the upgrade are 15,000"

Chen Xin did not make adjustments to the same upgrade plan as before, but he had his own detailed ideas for some details of the overall upgrade of the shelter.

Without too much hesitation, I directly put the various materials in the storage room into it, and chose two plans to upgrade at the same time. It still takes nearly 3,000 points to reduce the consumption of survival points to one-tenth. Two-thirds of the survival points are gone, and most of the materials stored in the storage room are directly consumed, leaving only a little bit of scraps.

It can be said that Chen Xin's accumulation in the past six months has been consumed in this upgrade.

But as the green light spread to every inch in front of him, Chen Xin closed his eyes with a smile of joy and anticipation. He wanted to open his eyes and see a brand new refuge.

Counting three to one in his heart, when he opened his eyes again, the green light had dissipated, and the sanctuary had become different.

He was still standing in the pantry, but this pantry had turned into a simple food pantry, with shelves for storing various kinds of food.

Chen Xin looked at the food storage room as large as the original storage room, and checked the cold storage upgraded with the previous food storage room and refrigerator. Chen Xin nodded with satisfaction and left the storage room.

After walking out of the storage room, Chen Xin should be facing the original public space, but now it has been upgraded into a hall.

This is one of the changes made after the overall upgrade of the sanctuary. Chen Xin turned the original sanctuary into two floors, and the public space runs through the upper and lower floors as a hall.

The rooms on the first floor are storage rooms, workshops and infirmaries, as well as a power generation area composed of ground source heat pumps, algae oxygen generators, and power distribution rooms. The passage connecting the planting greenhouses is also arranged on this floor.

The main body of the second floor is a semi-open living room and kitchen, because the public space runs through the upper and lower floors, so the side of the living room is just a structure similar to a balcony, which can directly see the first floor.

There are five double rooms around the living room. Each room has a separate toilet and also has a bathing function. However, Chen Xin still built a separate bathroom on the second floor, which is considered to fulfill his promise to Qin Lan and created a hot spring. bath.

Chen Xin didn't go to the second floor, although he could see Qin Lan who was sitting in the living room playing games as soon as he looked up, as if she didn't feel anything.

Turn around and go through the passage connecting the planting greenhouse to the planting greenhouse, which has undergone earth-shaking changes.

The original square planting greenhouse has become a huge cylindrical structure with a diameter of 15 meters and a height of 20 meters, and the biggest change is not the space of the greenhouse, but the planting area inside it.

The bottom of the planting greenhouse has become a large one-meter-deep pool, and a few swimming fish are swimming happily. It seems that Chen Xin was too embarrassed to raise them in a tank before, and now he finally has enough space to swim. Moved.

In addition, the original one-layer hydroponic planting tray and soil planting area have also been changed into six-layer one-acre square hydroponic planting trays, which are placed one on top of the pool. The circulatory system in the planting greenhouse is used for irrigated planting.

The bottom two layers of planting trays are planted with the previous upland rice, which does not seem to be much different, but the rhizomes at the bottom are no longer rooted in the soil, but replaced by planting trays and nutrient water tanks.

Four layers above are a quarter layer of carrots, a quarter layer of cabbage, a quarter layer of lettuce, and the remaining quarter layer of strawberries, and the other three layers are empty.

These are the crops that Chen Xin had planted before. Obviously, the system upgrade only changed the structure of the greenhouse and did not affect these crops.

The entire planting greenhouse has now entered into mechanical automation. Fully automatic planting, maintenance and harvesting are carried out through the operating table in the operating area at the entrance. Compared with the previous need for Chen Xin to dig the ground and harvest by himself, it is undoubtedly much more advanced.

This is obviously the embodiment of the +1 technology level in the overall upgrade.

After checking the planting greenhouse, Chen Xin came to the power generation area again. As the energy supply core of the entire shelter, it can be regarded as the heart area. Especially after the upgrade, Chen Xin took over the ventilation system of the shelter here, and the entire power generation area is more important.

The power generation area is also a large room. On the floor are four ground source heat pumps and matching generators, and against the wall are four huge green glass tanks, which are algae oxygen generators.

However, after they have been upgraded, not only have they become larger, the algal sediments in the harvest can be automatically extracted, and even the algae inside have changed to a certain extent, and ethanol can be produced.

Although the output is not high, only one hundred liters of ethanol can be provided for Chen Xin a month, but this is very good news, at least the output of the shelter has a new product.

The Algae Oxygen Concentrator is now connected to the ventilation system, and the oxygen it produces will be transported directly to all corners of the shelter through ventilation ducts.

As for the power distribution room, it is still a combination of a power distribution cabinet and a battery, but there are three more battery installation positions next to it, which can install the isotope thermoelectric battery used by Chen Xin in the armored RV.

Although Chen Xin himself has built an isotope thermoelectric battery, which is commonly referred to as a nuclear battery, he did not directly change the refuge to a nuclear battery or a nuclear reactor for power supply, but prepared three isotope thermoelectric cells in the power distribution room. Batteries serve as backup power.

"It's really good! In this way, you don't have to worry about power outages and lack of oxygen." Chen Xin nodded with satisfaction, although the lack of oxygen and power outages had long been ignored by him.

After checking the power generation area, Chen Xin took another look at the medical room and the work area. There was no major change in the two. The work area was just a more advanced workbench, and various small lathes and equipment were added. The sterile operating room and a ward are separated, and it looks more like a small medical station than just a medical room.

These are the main parts of the sanctuary after the overall upgrade, but Chen Xin knows that besides these, the entrance area on the other side of the gate has also undergone earth-shaking changes. At least he moved the material storage room to the top and turned it into material warehouse.

The shelter has been upgraded! The tickets are there! If there is a ticket, I will find someone to make the CAD design of the shelter!