When the robot began to replenish energy, Xu Ran asked An An to set an energy threshold for all the robots that were working.

That is, when the energy consumption of each robot is only 3%, through the logical rules of artificial intelligence, they will spontaneously go to the robot center to replenish energy, and return to their original jobs to continue working after filling up.

After making these settings, Xu Ran took An An into the R&D laboratory.

This transformed R&D laboratory will be a place for An An, as well as two scientific research and several auxiliary robots to work and conduct research.

The lab is also equipped with a supercomputer.

This supercomputer was reassembled by An An from the meteorological department of the fragmented city, as well as the main components of some equipment dismantled from several legacy facilities, and the performance is not bad, but compared with the supercomputer on the earth, even if it is assembled together, it will completely beat the most powerful Tianhe-1 in China.

However, this thing is a big eater, and it will only be turned on when the robotics research team needs to solve some extremely complex and large computing problems.

As for some other functional facilities and machine experimental equipment, they are also carefully selected from the fragmented city, and the other part is redesigned and assembled by An An with some useful components.

Now that the robot center has electricity, it is bright.

After Xu Ran learned about those machines and equipment, he immediately issued an order to the scientific research robots, asking them to start research work immediately, and the most important thing in the early stage was to focus on the storage technology of water resources.

After all, it is necessary to continuously pump water from the earth with that kind of heavy-duty truck water tank and then transport it to the fragmented city, which is actually relatively inefficient.

Xu Ran hopes that there will be a more portable and efficient method, which needs to be solved by the black technology left over from the Blue Star World.

After the robot was put into the research work, Xu Ran asked An An to turn on most of the equipment here, and asked: "Calculate, according to the current hourly power generation of the power plant, can the equipment here be fully turned on to provide uninterrupted power supply?"

Soon, the robot finished calculating and replied: "Boss, it is completely possible, based on the existing water resources if the daily consumption of 6,000 tons and the consumption of related coal resources are calculated, the local single generator set of the power plant does not need to run at full capacity, and can fully supply the power consumption needs of the entire dungeon!"

Xu Ran said: "What about the full power of the equipment in that part of the factory?"

An An said: "If those factory equipment is fully turned on, after the power generation that needs to be consumed increases significantly, the current coal resource reserves are huge, and there is no problem, but the extreme shortage is still water resources!"

Sure enough, it is still a limitation of the scarcity of water resources, and it also restricts the rapid development of fragmented cities.

Xu Ran thought for a while and said: "It's better to allocate power generation resources by focusing on the water resources supplied every day, at least to ensure that the power of this robot center cannot be interrupted, and the purple light research laboratory on the surface also needs to ensure the uninterrupted supply of power resources."

As for the relevant factories in the dungeon, if there is a shortage of water resources, then temporarily suspend work, and if the water resources are sufficient, then open the relevant factory production lines and start producing industrial robots......"

Speaking of which, it is still a problem of water resources, and Xu Ran's excitement about bringing the fragmented city to a new level because of the start of power supply in the dungeon has also quickly dissipated.

Speaking of which, compared with the thermal power plants on the earth, the underground power plants here in the dungeon city, no matter the equipment, as well as the design of the cooling treatment system of the power plant, are only based on saving water resources, which is many times more advanced than the earth, and the water consumption is still relatively small.

However, in such a situation, water resources are still extremely scarce, and if Xu Ran provides water resources every day to generate electricity, it is still not enough to support the power consumption of the main production line equipment of those underground factories.

After all, to produce industrial robots, it is not only the robot assembly line that starts, but also the parts and related materials on the robot, which are produced by many factories at the same time.

Therefore, with some helplessness, Xu Ran returned to the teleportation point again.

After opening the portal, Xu Ran entered and exited the debris space and the earth, and began to transport and replenish the water resources for the second and third time.

When Xu Ran completed the transportation of a total of 6,000 tons of water resources three times a day into the debris space and returned to the earth again, he found that only half of the energy of the space key was left, and the consumption was still very large.

Fortunately, the facility to charge the space key has been successfully completed, and it can be replenished at any time.

Otherwise, if it is the same kind of charging efficiency as before, Xu Ran dares to use the space key so frequently to consume energy violently, I am afraid that within two days, he will be insulated from the fragmented city, and the next time he enters, he can only wait for half a year before he can use it again.

This is also the main reason why Xu Ran has not dared to enter and exit the fragmented city frequently before the core facilities for charging energy here are completed.

However, today's water delivery plan has been reached.

The Space Key consumes half of its energy, and if the three 6,000-ton water delivery plans continue tomorrow, the Space Key will have to be recharged.

Earth time, it's already four o'clock in the afternoon.

After Xu Ran left the storage center, he returned to the technical processing center and put the space key in the charging core to continue charging.

Because it was only half charged, plus a quarter of the energy storage in the core capsule, Xu Ran only needed to wait 12 hours to be able to replenish the space key energy this time.

This feeling is equivalent to Xu Ran coming here every day to take out the space key that is full of energy, and then send 6,000 tons of water resources to the fragmented space, and then charge the key when he comes back, and when he goes home to sleep, he can continue to transport water resources to the fragmented space after coming to work at the corresponding time the next day, and then the cycle continues......

And this is the work that Xu Ran has to do every day, he doesn't want to keep repeating it like this, although it takes about three hours three times, but this is too boring, and he can only wait for the robot center to come up with new research results.

After putting the space key away, Xu Ran walked out of the charging center.

But when he walked on the way out, Xu Ran suddenly realized a problem.

That is, he transported only 6,000 tons of water resources six times in three round-trips today, but he consumed half of the energy of the space key.

If there are more convenient and efficient means in the future, and scientific research robots have also developed black technology means that can carry a larger amount of water resources, if you want to transport 60,000 tons at a time, or 600,000 tons of water resources, wouldn't it be necessary to drain the energy of the space key all of a sudden?

Suddenly, Xu Ran felt that the conclusion that the volume and mass of the transmission corresponded to the water consumption that he had previously concluded might not be correct.

As for some of the spatial characteristics hidden in the space key, as well as other functions that can be played, perhaps Xu Ran still hasn't figured it out yet.

It's like the space key gradually evolves from the original solid metal block to the gaseous state, and the curved dimension picture of the cosmic galaxy gradually appears on it, and Xu Ran doesn't understand what the reason is.

Bell bell!

Just thinking about it, he heard the mobile phone ringing, which was a voice call request from someone to him on WeChat.