Font
Large
Medium
Small
Night
PrevPage Index    Favorite Next

Chapter 124 Professional EOD Monthly Pass(2/2)

Indeed, the young suspect did not behave like a terrorist associate.

"Director! The person in charge has been connected!"

"Transfer to my phone now!"

York temporarily put down his tablet and took out his phone: "Stop the game immediately and evacuate the audience..."

"ah……"

"Run!"

"Please don't crowd! Pay attention to your steps to avoid stampeding!!"

Arthur U.S. Tennis Center Open Court.

Under the dual notifications of the big screen and loudspeaker, the audience finally learned that there was a bomb attack in the arena, so they ran desperately to the passage to escape.

Fortunately, the organizer had prepared sufficient security personnel for this large-scale event and could barely maintain order.

As for the heights of the East End Stand.

Except for Gu Ji, there was no one there.

He wiped the sweat from his forehead and stared at every line on the circuit board with his pupils shrunken.

It is no exaggeration to say that this is the first time since he obtained the "Crisis Management Game" that he has been so serious and focused on one thing.

The main thing is that there is no room for any mistakes in EOD.

If you are not careful, the bomb will detonate and your body will be shattered into pieces.

The structure of the bomb in front of me is very similar to the remote-controlled IED bomb in the subway. The vibration motor is connected to the electronic detonator through the mobile phone, but it has an extra string connected to the timer.

So, this is a double detonation bomb.

It can be detonated remotely using mobile phone signals, or it can trigger a countdown to detonate.

If you want to disarm bombs without causing damage, you need to first understand the electric detonator and circuit energization mechanism.

The filling ingredients in the detonator are igniting powder, detonating powder, and detonating powder in order. The former is ignited by energizing and heating a bridge wire made of nickel-cadmium alloy connected at the front end of two wires.

So-called remote control detonation.

No matter what method is used, the ultimate goal is to connect the circuit, prompt the detonator to explode, and detonate the main body of the explosive.

The motherboard connected to the electronic detonator in front of us is the "red and blue line mode" that is very common in movies. There is a PNP transistor in the motherboard, which is divided into emitter level E, base level B, and collector C.

When the voltages of the two are close to each other, the current will be blocked from flowing to point C. However, when the former generates a voltage difference greater than 0.6 volts, the current will flow to point C. At this point, the circuit is connected and the detonator detonates.

What Gu Ji has to do now is to cut one of the red and blue wires to prevent the current from flowing to the collector.

He first found the 12V power supply and carefully picked out the wiring with his little finger.

Gu Ji kept holding his breath during the whole process, for fear of accidentally breaking the line and detonating the bomb.

Especially the "didi-didi" countdown sound is very affecting the mentality.

Fortunately, "Barron" is young, has soft hands and is very dexterous.

Two wires were successfully separated from the power supply. The red and blue wires were drawn from the positive pole, and the negative pole was connected to the detonator. The blue wire was connected to the power generation stage E. The red wire was connected in series with the two resistors R1 (1kΩ) and R2 (20kΩ) to the base B. Finally, the detonator was connected to another wire.

Connect a wire to collector C.

At this point, the circuit board was completely exposed to Gu Ji.

"Hehehe..."

After taking a serious look, he couldn't help but sneered.

Naturally, the live broadcast room also heard it.

【Can you still laugh at this time?】

[Has the anchor found a way to crack the bomb? 】

[Really or not? How long has it been, a minute and a half? 】

【Art needs to explode: Why are you laughing?】

Gu Ji pursed his lips and squinted his eyes and smiled: "I'm sorry, I really couldn't hold it back. I thought the bomb you set up would be very clever, but I didn't expect it to be so simple. Anyone who knows some common sense about high school physics circuits will understand.

, the red line seems complicated and critical, but it is connected in series with resistors.”

"Once it is cut, the voltage at point B will decrease, causing the E and C poles to conduct, detonating the explosive. However, there is nothing on the blue wire, which is directly connected to the E level. If I cut it off, the triode will have no power source.

Is it done?”

The fans in the live broadcast room were confused, but there were still some top students who understood the principle.

[So simple? It’s really the level of domestic high school physics circuits! 】

[Good fellow, listening to your words is like listening to your words!]

[Hahaha, I also learned it. Thanks to the anchor for popularizing science, now I am also a bomb disposal expert! 】

[Don’t think what the anchor said is simple. When a bomb is really encountered, it is difficult for ordinary people to have such a calm mind to think about the circuit diagram! 】

【666, backhand taunting the bomber? 】

[The anchor is so wild, he’s not worried about the bomber blowing him up!]



Gu Ji didn't care whether the bomber responded or not, and took out a small knife from his pocket.

Before cutting the line, he carefully checked the circuit board again to see if there were any other hidden lines to prevent them from being hacked.

I didn't make a decisive move until I was sure it was 100% safe.

"drop……"

The bombs stopped.

Gu Ji was finally able to breathe a sigh of relief.

Unexpectedly, the bomber responded at this time:

[Art requires cruelty: Although this bomb is very simple, it is difficult for ordinary people to deal with it calmly within 5 minutes. Maybe you are a genius and are naturally extremely calm; maybe you have also received special training in bomb disposal and are used to seeing explosives.

, so very calm and calm;]

[I have to say, I am starting to become interested in you, Barron. Maybe you are not as simple as described in the information. I hope you will never die when you face the next bomb, otherwise I will be very sad.

, Oh, by the way, there are still 5 minutes and 43 seconds before the positioning is exposed. I believe the police should have surrounded the arena in advance. I wish you good luck!]

[Barron? The anchor’s name is Barron?]

[This Kumba is too bad! Directly exposing the host’s identity information? 】

[Being an opponent and a referee at the same time, how can you do this? 】

[Isn’t it a bomb that was designed so hard that the anchor can dismantle it in one minute and break the defense? 】

[Anchor, run away! We all support you! The police must not arrest him, otherwise he will die!]



boom!

Just as the audience was sending barrages in support of Gu Ji, the explosive on the top of the big screen stand suddenly exploded, and Gu Ji hurriedly kicked off the stand.

Following a series of explosions, the huge LED display finally fell down.

Gu Ji was breathing heavily, but he didn't even have time to curse the bomber.

My ears twitched, and suddenly there was a "ta-ta-ta-ta" sound from a helicopter propeller in the distant sky.

It's the New York police siege.

He decisively used [drone reconnaissance] once.

Suddenly, a translucent gray picture appeared in mid-air in front of him. It was an aerial view of the town in Queens, New York, where he was currently located. The game system thoughtfully helped him mark all the police officers and police cars in New York City as flashing red dots.

There were about fifteen or six red dots, surrounding the Arthur US Open stadium in an arc from all directions, and a police helicopter was even dispatched!

"It's too late, run!"

I checked more than ten pages of information on this one, and I even found an original picture of a remote-controlled bomb to analyze. The plot has picked up the pace, and I feel like I'm in a good state. It's almost December, please give me a monthly ticket at the beginning of the month!
Chapter completed!
PrevPage Index    Favorite Next