The appearance of the purple light sensor makes people feel a little surprised to look at.

Below is a four-way base station, connected to a large shaft, and above the shaft is a cauldron, making it look like a large radar.

However, looking at the characteristics of some of its components, it seems that it was modified from a meteorological detection instrument used by the meteorological department in the fragmented city.

After looking at the purple light sensor, Xu Ran said: "Since the purple light is here, what is the safety factor of this underground shelter I am in?"

The robot replied: "Boss, as long as you don't touch the particle beam scanning of the purple light, your safety factor in the shelter is predicted to be 97.8%, and you can safely avoid the damage caused by the purple light!"

After hearing the robot answer like this and give a safety factor, Xu Ran was relieved.

But in his heart, he desperately wanted to see what the nature of the purple light was, so he asked, "If there is no surveillance, then how can I see the process of the purple light scanning the city?"

The robot replied: "If the boss wants to see, you can enter the control room of the purple light sensor, where there is an imaging instrument, you can intuitively see the process of purple light descending and scanning the city!"

"That's great, take me there!"

"Boss, the control room of the purple light sensor is on the top floor of the business building on the surface, if you want to go there, the danger factor will be as high as 99%, which will seriously affect the safety of your life, boss, it is recommended that you wait until the purple light disappears, and then go to the control room to check the replay!"

Hearing this answer, Xu Ran was a little dumbfounded.

But thinking about the time for the mysterious purple light to descend on the fragmented city, it would disappear in no more than a minute at most, and Xu Ran could still wait for such a little time.

Drip, drip!

At this moment, the alarm sounded again, and this time the frequency was relatively high, which meant that the purple light was coming soon.

It is quite convenient to have such an early warning mechanism.

Because when the mysterious purple light comes, it will also cause a certain loss to the robot, that is, it will seriously consume the energy stored in the robot.

You must know that in order to replenish the energy of those robots, Xu Ran got 20 tons of fuel oil to supply power to the generator set for uninterrupted operation.

In addition, there will be a certain amount of resource loss during operation, and at the same time, a part of the water resources stored by Xu Ran is absorbed by the particle beam, so the loss is still relatively large.

It can be said that the mysterious purple light is the existence that Xu Ran has found to be the most threatening to him in the Fragment City at present.

At this time, after the second alarm sounded, some of the robots working outside returned to the underground shelter one after another.

Xu Ran also saw An An who returned.

An An is becoming more and more intelligent and humane, and after walking to Xu Ran's side, he is like a cute cute baby who likes to sell cuteness to Xu Ran.

If you add a layer of biological skin to An An, An An will look like a funny girl.

Although it has been initialized by Xu Ran, and has undergone another self-upgrade and evolution, An An still continues some of the secondary attributes of the original owner in some places, and Xu Ran has not adjusted the settings in more detail, but feels that An An is quite happy like this.

At least An An will let Xu Ran subconsciously regard him as a person, which will make him feel that in this dead and gray world, he is not the only living person who is lonely and lonely here.

After all the robots on the ground returned, An An certainly couldn't let them all be idle, so he commanded those robots to go to the underground factory to continue cleaning up the underground power plant.

Xu Ran didn't wait long.

Drip!

After waiting for about ten minutes, Xu Ran heard the long-honking alarm again.

The long-honing alarm lasted for about 55 seconds before it stopped, indicating that the purple light had disappeared after scanning through the fragmented city.

Bite!

Sure enough, five seconds later, about a minute, the violet light sensor of the warning made a light crisp sound, like the sound of iron objects hitting each other.

After the alarm was lifted, the industrial robots began to return to their respective jobs one after another.

Xu Ran went to the commercial building in the center of the city.

Before the purple light came, the Fragmented City was the darkest hour, and when the purple light disappeared, the dim light environment was restored again.

After Xu Ran let the robot lead him up to the surface, he saw the purple light sensor standing on the roof of the building.

A closer look reveals that there is a probe-shaped facility in the center of the radar-like cauldron of the violet sensor, and the top part of the facility is like a spire, and there is a faint purple luster.

Although the commercial building has been transformed into a command center for the entire fragmented city, the two generators placed here only provide power to some of the instruments and equipment on the first floor to keep them running.

However, the elevator can be used, and it will not transport heavy things such as supplies, but it will not consume much electricity resources.

After Xu Ran took the elevator up to the top floor, the open area there had been renovated, and he could see that some materials collected from the fragmented city had constructed a precision control room.

After asking the robot to check whether there was radiation around the control room and confirming that there was no harm to the safety factor, Xu Ran followed the robot into the control room.

The control room is a collection of the most sophisticated and advanced sensing and detection equipment left behind in the fragmented city, with some sci-fi style, and those devices are controlled and managed by artificial intelligence.

Xu Ran walked to a display screen, and the robot helped him open the playback record after the purple light descended on the fragmented city.

Of course, in addition to seeing what he had personally experienced this time, Xu Ran also found that there were some sensing monitoring records of the purple light descending on the fragmented city at different times.

The robot first retrieved the replay record of the purple light that had fallen on the fragmented city, and then began to play it on the display screen.

The content of the picture is a gray-and-white background, and the way of sensing the image is completely different from what the camera equipment captures, like looking at a black photograph.

However, when the purple light comes, the content of those sensory images will change, especially the purple light, which is extremely dazzling.

Xu Ran noticed that the value of an energy monitoring below showed that the purple light was only a three-second process, but the energy contained in it was almost overwhelming.

Since it is an energy manifestation situation, Xu Ran carefully looked at the induction imaging records played back, but found some common points from them, that is, when the purple light swept through the fragmented city regularly, the energy released each time was relatively fixed.

As a result, Xu Ran couldn't help but suddenly have a flash of inspiration, and thought of a situation that was very bold and broke through the habit of thinking.

So is this energy feasible to be harvested and utilized?