Bit Mania [Hacking]

"where is it?"

"At the west end of the corridor, next to the innermost dormitory, we are now at the west staircase, turn right for five meters and we will arrive there without passing the guard room."

"It's a good location, it's convenient to retreat at any time..."

"Yes, you have to keep watch alone."

"Who?"

"Master Ning."

"Poor monk?"

"No, he has such a slow temper. We have already been caught two times before he reports."

"Why two?"

"Because a doorman only has two hands..."

"Then I'll do it!"

"Haitian, don't mess around, stay here for a while and don't run around."

"Hey……"

"Shh." Zixin stretched out an index finger and put it on his lips: "If you keep talking, the guard will wake up in no time. If you can't, come together and make a quick decision."

Everyone shut their mouths, poked their heads out to look around, and moved lightly to the front of the power distribution room.The power distribution room is actually not a room, but a control circuit embedded in the wall. Perhaps it is more appropriate to call it a power distribution box. There is an iron plate coated with an anti-electric coating and screws on the outside. It is fixed on the wall. From the outside, it looks like an iron plate nailed to the wall. There is also a sign of "electricity is on, please do not touch" on it.

In the boys’ dormitory, it is rare for a screwdriver to be taken out. Master Ning held the flashlight, and Zixin took out the screwdriver from his pocket and unscrewed the six screws that fixed the iron plate familiarly. , with the help of Shen Zhongzhe, carefully took off the heavy iron plate, and was about to bend down to put it on the ground, but suddenly something fell out of the distribution box. Watching the thing fall on the iron plate, there was a crisp "pop" that belonged to a plastic bag in the quiet corridor.

Both Zixin and Zhongzhe immediately covered their mouths and suppressed the sound of gasping in their throats. At this moment, they heard a strange cat meowing in their ears. The two of Luo Chen subconsciously looked down, and then Angrily slapped Xue Haitian on the head.

"Meow... eh?" Xue turned his head with an innocent face: "Why did you shoot me?!"

"It's okay, what are you doing meowing like a cat!"

"You guys don't understand, it's always like this on TV, if you accidentally make any noise and meow like a cat, others will think it's a cat..."

"...Is there anyone who screams so loudly?!"

"I'm afraid the guard won't hear you... Woo!"

"Shut up!" Even the good-tempered Zhongzhe got angry: "...don't even think about where the cats are in the dormitory!"

After Haitian closed his voice aggrievedly, the whole corridor fell silent. The four tensed their nerves and listened to the movements in the guard room. After a long time, someone let out a breath slowly, and then the friends relaxed slightly. It seemed that the guard was not disturbed.

Master Ning bent down and picked up the thing that fell on the ground: "What is this?"

As the plastic bag was picked up, a large pile of long black hair slid out from the mouth of the bag, with one end hanging outside and the other still inside the plastic bag.

There was a gust of draft between the stairs and the corridor, the windows were slapped, and the surrounding was dark and silent, only the sound of unknown birds flapping their wings came from a distance, and the hanging hair fluttered slightly , fluctuating like a lingering candle.

Ning Yi stood there stiffly holding the bag, while Zixin and Haitian were covering each other's mouths and screaming.

"This... little monk... Amitabha Buddha... sins, sins..."

"No, no, no, it can't be murder and dismemberment... hiding here?!"

"...Here, are there any ghost stories circulating in this building?..."

"Don't hug me so hard...I'm about to be strangled to death by you...Why are you so timid..."

"Still talking about me! Whose legs are shaking..."

"Not dead."

"Uh... huh?!"

The light of the flashlight shone on the speaker, and Shen Zhongzhe held up the hair hanging outside his pocket with one hand, put it under his nose and took a deep breath, and said softly, "It's a wig."

Master Luo Xue: "..."

"Wigs, lipstick...huh?" Zhong Zhe picked up a small flat box: "What is this?" When he opened it, he found a fleshy white powder, a sponge, and a faint fragrance.

The four pure little boys stared wide-eyed, feeling that a magical door was slowly opening in front of them.

"...Why are there such things in the boys' dormitory?"

"You ask me how do I know..."

"Then what should we do?"

Xue Haitian stood up abruptly: "Comrades, have you forgotten our mission tonight?"

After he said this, the other people suddenly realized, hurriedly stuffed the things back into the bag, patted their buttocks, stood up, and shook the flashlight that was not so bright: "Start work!"

Master Ning hurriedly picked up the lamp, Haitian and Zhongzhe also stared nervously at Zixin's movements, Zixin stood up, stood in front of the distribution box and watched for a while, with an expression on his face as if he was looking for something, then stretched out his hand , his long fingers flicked over the rows of control switches, and suddenly stopped above a switch, flipped it down, and then flipped it up again immediately.

"Okay," he said.

"...Uh, is this all right?" Haitian said in disbelief.

"What do you think?" Someone shrugged: "If the electric switch tripped, wouldn't it be enough to turn it back?"

"Then I put it back on?" Zhongzhe lifted the iron plate aside and gestured with his chin.

"Wait!" Xue Haitian stopped them: "So we still use the upper limit of 1600 watts?"

"Yes."

"... 1600 watts! What a painful thing! We can't turn off the computer every time we boil the water, can we?" Haitian said desperately: "Think about it, the computer has to stop halfway ? A nightmare..."

Hearing this, Zi Xin also hugged her head in pain: "It is indeed a nightmare..."

"Why don't we... change the electricity limit?" Zhongzhe asked tentatively.

"Master, think about it, your beloved electric heating rod that you use every night!"

"Snakes and scorpions should be retaliated against. My Buddha is merciful and punishes evil." Master Ning said.

"...This sentence is not used like this, okay?"

The reason why the switch will jump is realized according to the indication of the ammeter.Generally, there are three types of ammeters in school buildings, namely monitoring the average power, monitoring the peak current, and identifying whether the load is linear. The first two are easy to understand, and the third is more advanced. It uses the intelligent algorithm combined with the single-chip microcomputer and AD converter. It is actually easy to distinguish whether the load is linear or not. For example, the electric heating rod used by Master Ning before is used by passing current on the resistance wire to make it heat. The phase difference between the voltage and current of this pure resistance electrical appliance is zero, which is called It is a linear load; while the power supply used by computers, desk lamps and the like is a "switching power supply". The alternating current is rectified in this way, so I won't elaborate on it here. You only need to know that after this cycle, the actual waveform of the current will be distorted. , while the intelligent identification meter samples the voltage and current waveforms at the output terminal, and after a certain calculation, it can find out whether there is a purely resistive linear load connected to the power supply, and if so, it will pinch you off.

Since the three roommates used to use electric heating rods to boil water before, Zixin also ruled out the third possibility. It is inconvenient to be honest without a multimeter, but he is an expert in this field after all. It is easy to judge that this meter is dedicated to monitor the maximum power.

To deal with this situation, the easiest way is to change to a large capacitor... The question is where to find the capacitor?

"Look, isn't there something here?" Haitian excitedly pointed to a black pillar at the far right: "Swap it with ours."

Zixin looked at his fingers and couldn't help but help his forehead: "Although it's very big, it's a dry circuit capacitor, brother..."

"Uh..." Haitian touched his nose.

"It seems that the only way to modify the circuit structure is, how much do you think the limit should be set?"

"The more the better!"

"Three thousand?"

"Not enough, less than [-]!"

"Uh, the average private residence is only [-]..."

"That's [-]. When you're ready, I'll ask my dad to install some air conditioners, refrigerators, and the like for our dormitory!"

"What about the washing machine?"

"Have!"

"make a deal."

"You operate, we follow your command!"

Zixin said, "Okay, before that, turn off the power first."

"Oh."

"Snapped--"

There are five student dormitories on the fourth floor, and there are many energetic night owls in the postgraduate apartments with 24-hour running water and electricity. The windows that are still lit in the middle of the night are suddenly darkened at this time.

"What's wrong, there's a power outage?!" Curses came from several dormitories at the same time. In the summer of early October, a group of shirtless men threw away their poker cards and stood up cursing.

"Call the hostess?"

"The battery is out, you call the ghost!"

"Ah! Who touched me!"

"not me……"

"Why are you wet?"

"Who knocked over my Coke, shit!"

"Which god is lying on my bed, with such smelly feet..."

"Come down for me, I told you to come down for me, do you hear me!"

A world of chaos in the darkness.

"Crack——" After 15 minutes, the light came on.

Zixin straightened up and wiped off his sweat: "Little ones, call it a day!"

Master Ning picked up the bag containing the cosmetics: "How to dispose of this thing?"

Zhong Zhe held the iron plate and buckled it against the wall: "Hurry up, put it back here."