Doomsday disaster: Start by building a shelter

"It would be nice if the special transport vehicles were still here."

Su Wu was in trouble.

Although the previous storm did not significantly change the direction of the river. But the damage to the terrain is really not small. With the current engineering team, the mini excavators and mini transport vehicles have toy-like small bodies. It is destined to be quite difficult to navigate in such a complex environment. If you are not careful, the car will overturn.

But no matter how difficult it is, you have to do it. The construction progress of the shelter cannot stagnate just because of this.

After being in trouble for a while, Su Wu quickly thought of a solution.

That is to install a detection radar on the mini excavator.

At present, the machinery in the engineering team basically uses cameras to identify the external environment. This method of judging based solely on identifying pictures is too simple and cannot detect various hidden traps. If a detection radar can be added to it, it can make up for this shortcoming to a great extent.

As long as the traps can be discovered in advance, with the ability of the mini excavator, whether it is filling on the spot or taking a detour, there are many solutions to choose from. Basically, there will be no more rollover or trapped situations.

However, actually installing the detection radar is not an easy task.

The price of radar is not cheap, and truly high-performance industrial-grade and military-grade radars are not something Su Wu can afford.

Among the supplies purchased from the official shelter, there were only ten of the cheapest commercial-grade lidar and sonic radars.

The effective detection range of lidar is 25 meters, and it can only identify unobstructed pits. The accuracy is only slightly better than camera recognition. Acoustic radar can further detect hidden pits, or simply determine whether the ground is solid enough to support the passage of vehicles. But its detection distance is only 3.5 meters, and there are a lot of blind spots. Each detection can only detect a fan-shaped area within 60 degrees directly in front.

At the same time, they also have various problems such as the working environment temperature cannot exceed 50 degrees, and the probe head is precise and fragile.

Su Wu studied for more than ten minutes before coming up with a final solution with the help of artificial intelligence and databases.

Both radars are installed, with a waterproof and dustproof casing, a freely rotating base, and a separate cooling system.

This plan cannot be said to be very good, but it can at least make the radar operate normally.

If we don't consider the difference in accuracy, reaction speed, and detection range, there is not much difference from the terrain radar that comes with a large truck or a special transport vehicle that has been upgraded with a survival point. Already available for practice.

More than two hours later.

The construction robots that successfully completed the first phase of the construction task began to return to the shelter one after another.

They clean dust and dirt from their bodies in the disinfection room on the first underground floor of the shelter, and then go to the manufacturing center on the second underground floor to receive routine maintenance by engineering robots. Finally divided into two, the two received rifles and magazines at the manufacturing center and guarded near the lifting platform of the shelter. Another six stations joined the engineering team and went to the fourth underground level to participate in excavation and expansion of the shelter.

And at the same time.

A mini excavator and a mini transport truck separated from the original construction team and came to the ground one after another. Then he turned on the lights in front of the car and drove slowly towards the land in the distance that was swallowed up by boundless darkness.

"I hope nothing happens."

Through the ground surveillance of the shelter, Su Wu looked at the small convoy gradually disappearing into the darkness, feeling a vague sense of worry in his heart. It felt like this was the last time I saw them.

Was in a daze for a while.

Su Wu began to switch the main control screen to the mini excavator that was leading the way away.

The rows of data that represented normal status were refreshed on the screen, and under the light of the car lights, the road signs of the past could be vaguely seen, which made Su Wu's anxiety slightly lessened.

The storm not long ago was not all bad. At least the ground has been almost cleared away due to global forest fires and ash from volcanic eruptions.

Judging from the environment near the highway at this time, it looks like a remote suburb that has suffered a drought. Instead of being like an alien planet, the entire world is cast in a dark tone, making it look like a silent hell that makes people feel depressed and desperate.

It is limited by its size, and there are many gravels and debris on the road that have not been cleaned up.

The speed of mini excavators and mini transport trucks is not very fast, only less than 10 kilometers per hour.

Su Wu waited for nearly 15 minutes before he saw them leave the road and turn into a country road with almost no traces.

This is the closest route to the river.

In the past, there used to be two or three self-built rural houses here, as well as a piece of abandoned farmland. But now, they are completely gone.

"It should be right in the center of the storm belt."

"It was completely destroyed."

Su Wu controlled the camera on the mini excavator and turned to the location of a self-built house.

At this time, it had become a sunken pit. Except for a piece of rubble carried by the storm, there are no traces of artificial construction in the pit.

He remembered that a family of five once lived in that house. The head of the family is a middle-aged man named Miao Yijun with a cheerful personality.

When Su Wu first came here, he had asked him to help buy some gasoline and sugar. At the same time, he also heard him bragging about his own vegetable cellar, which was spacious and sturdy, and could be used as a shelter.

However, his house, along with his sturdy vegetable cellar, had disappeared forever in the storm while the words were still ringing in his ears.

"I hope they have all moved to the official shelter in advance."

Su Wu sighed silently.

He did not insist on getting closer to find out the truth of the matter.

He got off the road.

The leading micro excavator moved even slower. Occasionally, when they encountered some rocks and pits blocking the road, they had to dig them out or simply take a detour. After all this trouble, by the time they arrived at the edge of the river, nearly half an hour had passed.

At this time, the large trucks and special transport vehicles that arrived at the edge of the city to clear the road sent another warning.

The wind over there began to gradually become stronger.

The reconnaissance drone formation on high-altitude alert had been forced to land in the cab of the large truck. It is no longer possible to carry out the alert mission normally.

"Is this another storm coming?"

Su Wu was subconsciously shocked. But he looked through the official forum and did not find any similar disaster warnings.