Apocalypse Rebirth: 3000 million won at the beginning

Large, fluffy snowflakes drifted down.

Outside the camphor tree base, the sound of intense gunfire could be heard.

The gunshots seemed far away, but they could hear them clearly when they opened the window.

Since the zombie horde arrived at the Big Camphor Tree base, the sounds of gunfire have been incessant for the past few days.

On the fourth outer city wall.

A group of workers are working hard to install sensors and build an array of infrasound detection systems.

The reason for installing this system in the fourth outer city is based on various considerations.

First, the walls of the fourth outer city are higher than those of the buffer city and the edge city, making infrasound detection more convenient.

Secondly, the fourth outer city has more space than the edge city. As the outermost city of the Great Camphor Tree Base, the edge city has the most guards and the most cannons and other weapons.

Old Zhou rode his electric scooter around the perimeter wall, personally guiding the workers as they installed the sensors.

rustling --

A team leader of installation workers walked over from the side.

"Mr. Zhou, we'll be done soon. Should we plug it in and test the circuit?"

Old Zhou nodded and said:
"You can try it, but make sure the circuit is working properly. Also, the snow is too heavy now, so you must follow my instructions when you install the wiring."

The foreman quickly said:

"Don't worry, everything is done according to your requirements."

"Okay." After saying that, Lao Zhou drove his electric scooter forward.

Snowflakes fluttered down onto his face, turning it red from the cold.

I hate this kind of weather where rain is mixed with ice and snow; it's extremely damp and cold.

But he couldn't stop; every second he delayed in setting up the infrasound detection system would increase the danger to the city's fortress.

Although there are small infrasound monitoring devices at the city fortress, the detection speed is too slow.

Another three hours passed.

The array infrasound detection system has finally been set up.

Old Zhou not only set up a detection system, but also simultaneously built twenty rocket launchers on the fourth outer city wall and connected them to a computer.

The fire control system and the infrasound detection system have been integrated.

Whenever the acoustic resonator emits low-frequency infrasound, the infrasound detection system can detect it and pinpoint its exact location.

The infrasound detection system has a positioning time of approximately 10 seconds, with a positioning range error of about ten meters.

It is far more efficient and faster than small and medium-sized infrasound monitoring instruments, and its accuracy is also higher.

Once the system locates the position range of the acoustic resonator, it will send the specific location to the fire control computer.

The fire control computer then obtains the specific firing parameters and commands the "electronic servo adjustment unit" to automatically adjust the azimuth and elevation of the rocket launcher, after which it can begin firing.

The two systems have been integrated, achieving fully automatic positioning and automatic firing functions.

Old Zhou hurriedly arrived at the No. 1 watchtower of the fourth outer city, where the central fire control computer was located.

Upon seeing Lao Zhou, Qin Feng, who was specifically in charge of the fire control computer, immediately stood up and excitedly said:
"Mr. Zhou, it's all powered on and set up, ready to be used at any time. Would you like to try it out now?"

Old Zhou sat down and checked the computer. After a while, he frowned.

"Didn't you set up any blank areas? What if the sonic resonance zombies climb onto the city fortress?"

"Are we going to fire rockets at the city's fortresses too?"

After thinking for a moment, he still felt that the two systems being directly linked was too automated.

Although it can save manpower, it is also much faster.

But what if an error occurs, the system crashes, the rocket launchers fire randomly, or even fire into the city?
So he stood up and said:

"Disconnect the automatic connection between the two systems. After the infrasound detects the specific location, quickly verify the specific location. Once it is confirmed that the location is not suitable for bombing, manually input the location parameters into the fire control computer."

The location of the camphor tree base, as well as the city's fortresses, passageways, and plantations outside the city, were all entered into the computer and drawn into a map.

The latitude and longitude location detected by the infrasound system can be quickly entered into a computer for confirmation, and then the location can be found on a map.

It only takes a few extra seconds in the middle.

Then, inputting the position parameters takes only four or five seconds.

This timing is perfectly acceptable to them.

After hearing what Lao Zhou said, Qin Feng was first shocked and broke out in a cold sweat.

He was so focused on setting up the system that he didn't consider all the details.

He quickly nodded and said:

"Mr. Zhou, I'll disconnect right away and quickly set up a tool for verification and location. Just give me half an hour."

Old Zhou got up and returned the seat to him, then walked over to the radio station to contact the higher-ups.

Before they can conduct the test, they must inform the fortified city.

This is the only way to understand the effectiveness of the infrasound detection system.

Half an hour later.

The leaders of the twelve fortified cities have all received the message that they should not attack the sonic resonance corpses for the time being.

They can use a small infrasound monitor to simultaneously detect the location of the sound resonator.

This way they can simultaneously compare the effects of the two methods:

The first method uses a small infrasound monitoring device, followed by precision bombing.

The second method uses an array infrasound detection system, bombarded by a fire control computer.

Fortress No. 5.

Bai Wenyang sat down on the ground of the second platform, looking slightly tired. After several days of continuous combat, he could only close his eyes when he was extremely exhausted, and he would often be woken up after only a short time.

His eyes were bloodshot as he picked up the headset and said:

"Chief Yi, fortresses number four, five, and six are ready."

After receiving information from various fortresses, Yi Jing, who was far away on the outer city wall, informed Lao Zhou on the outer city wall.

Old Zhou was sitting next to Qin Feng when he received the message from the I Ching and suddenly stood up.

"Qin Feng, begin the test!"

Qin Feng, who was already prepared, immediately turned on the array infrasound detection system.

A few seconds later, a grid diagram appeared on the huge LCD screen on the adjacent wall.

The grid map marks locations such as the headquarters base and fortified strongholds, which are marked as blank areas.

Once the infrasound detection system detects these blank areas, it will emit a piercing alarm, warning them to operate with caution.

There is a signal beacon in the center of the grid, emitting concentric circles outwards; this is during detection.

A minute passed.

Two minutes passed.

The grid remained unchanged, while the signal beacon rapidly expanded outwards at a rate of once every five seconds.

Three minutes passed.

Everyone in the watchtower stared intently at the electronic screen.

Old Zhou was a little worried, so he used the radio to contact Yi Jing and ask if the city fortress had found a sonic resonance corpse. He was relieved when he learned that no one had been found.

Sudden.

The giant infrasound detector emitted a beeping sound. The grid map on the LCD screen on the wall also locked onto a location.

Furthermore, to the right of the locked marker, there is a line of large text indicating the latitude and longitude range of the marker point.

"A sonic resonance corpse has been found!"

"Locked up!"

Qin Feng was overjoyed and quickly compared the latitude and longitude of the marked point, then entered the specific location of the latitude and longitude with one click.

Although the grid map also marks the locations of headquarters and fortresses, a more precise search will yield better results.

Soon, the computer map pinpointed the exact location of the sonic resonance corpse, which was 200 meters southwest of Fortress No. 3.

All of this happened in less than ten seconds.

After confirming that everything was in order, Qin Feng copied and pasted the data into the fire control computer with one click and then clicked "launch".

The rocket launcher mount quickly adjusts its height and angle according to the position transmitted by the system.

Without any hesitation, whoosh!
A shell shot out.

And seconds later, the bombing occurred at the marked location.

A few seconds later, the circular waves in the grid began to spread outwards again, entering a new round of detection.

This means that the sonic resonance corpse we just discovered is dead!
But Lao Zhou and the others were not happy. Instead, they quickly contacted Yi Jing to inquire about the situation at Fortress No. 3.

Fortress No. 3.

Miao Tianji stared blankly to the southwest, at the zombies that had been blown up.

That fast?
"Captain, Chief Yi is looking for you," his subordinate rushed over to remind him.

Miao Tianji quickly ran to the radio station and asked:
"Chief Yi, was the array acoustic detection system at headquarters activated just now?"

"Yes, how effective is it?" the I Ching asked.

Miao Tianji slapped his thigh and praised:
"The effect is amazing, much better than the small sonic detector we use. To be honest, we only detected the sonic resonance zombie right after the shells landed at headquarters."

"If we were to carry out the bombing, we would need to manually adjust the angle and height of the temporary mortars and calibrate them. It would probably take at least a minute or two to complete."

"The system at headquarters can locate and eliminate targets in less than half a minute! That's amazing!"

Upon hearing Miao Tianji's reply, Yi Jing couldn't help but smile.

It can locate and kill the sonic resonance corpse in half a minute. It seems that this array of infrasound detection system is really useful!
He couldn't help but sigh, "In the end times, talent is indeed the most important thing!"
If this had happened a few years ago at the Camphor Tree Base, you probably wouldn't have been able to find the sonic resonance zombies; you'd have to rely on large-scale killings.

"Okay, I understand." Yi Jing put down the phone and then quickly contacted Lao Zhou, who was urging them to get the results.

"Hey, Lao Zhou, how's the result? Pretty good! That shot was really accurate. Captain Miao from Fortress No. 3 kept praising it."

Old Zhou put down the receiver, looked at Qin Feng and the other staff members around him, and a happy expression appeared on his face:
"Brothers, we did it!"

"Ye Shi!"

"awesome!"

"We finally made it!"

"Hahaha."

Seeing everyone's joyful expressions, Old Zhou smiled and took out a pack of cigarettes from his pocket.

After lighting a cigarette, he instructed Qin Feng, who was still immersed in joy:
"Qin Feng, you will be in charge of this system exclusively."

"Make sure there are at least two people monitoring the system at the same time, one operating it and the other watching over it, so that errors are less likely to occur."

"In addition, we need to send people to keep an eye on the artillery to ensure that there are enough shells. Once the shells are used up, they need to be replenished in time."

Upon receiving Lao Zhou's reminder, Qin Feng quickly picked up a piece of paper and wrote it down.

"Okay, Engineer Zhou, I understand. I guarantee I'll complete the task."

After finishing his cigarette, Lao Zhou sat back down in his chair and connected to the radio station in the outer city command center.

"Sir, the array infrasound detection system is very effective. It can locate and strike targets within half a minute, which is several times faster than using small infrasound monitors in a dispersed manner."
"

Upon receiving this good news, Li Yu, who was in the command hall of the administration building, gripped his teacup tightly.

"not bad!"

"Also, Lao Zhou, how complicated is it to set up this system? With the current equipment at headquarters, how many more of these systems can be set up?"

When Lao Zhou heard Li Yu say that, he immediately understood what Li Yu meant.

You'll encounter them at the headquarters base in the Big Camphor Tree, and soon you'll also encounter them in places like the Oil City and the Northern Territory.

Especially in the Oriental Paradise area, the sea fog and zombie hordes appeared even faster than in the Oil City.

"There are still three large acoustic detectors at the headquarters base, and we should be able to set up three more sets. There are relatively few of these large acoustic detectors, so we might have to look for them in the central warehouse in the oil city."

If we can find it, we can build several more sets.

As for the sensors needed, there are plenty at headquarters.

"Three sets?" Li Yu pondered for a moment after hearing this.

Oil City, the North, and Oriental Paradise are definitely three places I want to visit.

As for the sea fog and zombies in the northwest, they probably won't arrive for a while, and it will take even longer for the zombie horde to spread there.

Therefore, the Northwest will definitely be the last area to be built.

"Okay, then prepare these three sets of equipment immediately, and call some people who know how to install and use them. There will be a train going to the oil city tomorrow, and we will take these equipment and people with us."

"Understood! I'll arrange it right away."

Old Zhou put down the receiver, stood up, walked to the watchtower gate, and took off a cloak with a hood.

Put it on.

Turning his head to look at Qin Feng, he said:

"Qin Feng, keep a close eye on things here. If there are any problems, contact me anytime. I brought a walkie-talkie."

Qin Feng nodded. He had just heard what Lao Zhou said and knew that Engineer Zhou had to go and get busy.

"I understand, don't worry."

Old Zhou then disregarded his concerns, turned around, and opened the door, where the wind and snow outside the watchtower howled in.

He tightened his cloak and stumbled toward the elevator.

He still has a lot to do.

Although the problem of the sonic resonance zombies has been solved, the zombie research institute keeps urging him to go and participate in the research.

Research solutions for tunnel corpses.

The solution to the sound wave resonance problem also gave Bai Jie inspiration:

When the tunnel zombies dig, their claws emit a unique frequency. The location of the tunnel zombies is detected by sound waves, and then a high-intensity sound wave of the same frequency is emitted by a sonic resonance weapon to shatter the claws of these tunnel zombies.

This involves the field of the Military Industry Department; Bai Jie and others in the Zombie Research Department mainly study biological subjects.

Therefore, his cooperation is needed.

After he hurriedly got out of the elevator, he found He Bing from the military industry department and told him what Li Yu had just told him.

He Bing naturally knew that he was quite busy right now, so he said:
"Alright, I'll find someone else to do this task assigned by the commander. You go to the zombie research institute first; Minister Bai and the others have been waiting for you for a long time."

"Okay, Minister He, I'll be going now."

"Go."

After reporting the matter to his superiors and having He Bing hand it over to someone else, Lao Zhou went to the zombie research institute in the second outer city.

(End of this chapter)