The old things I repaired have become fine

Chapter 8: Why do I feel poorer after inheriting a large fortune?

Shen Le's cheek twitched.

I don’t want a thief to crawl in one day, or be unlucky and kill someone in the third entrance on the left or the first entrance on the right without me knowing. But if you ask me to install a full-house surveillance system, no, a full-house surveillance system with networked devices, I really don’t know how to install it—

There are two roads and three entrances, six courtyards in total, and N rooms. How many surveillance cameras are needed?

What kind of equipment is needed to bring all the information together so that you can see the image from each camera by just looking up, or switch back and forth to see the image from each camera in turn?

How much does this system cost in total, and how much does it cost to install and maintain? Does it require professional installation? For a certain scale of surveillance, does it need to be connected to the police station?
Shen Le couldn't help but ask:
“How much does it cost to install surveillance?”

"Let me think about it..."

Shi Guangbing frowned and said nothing. This question was indeed a bit difficult for him as a local police officer.

The auxiliary police officer next to him laughed. He used the long pole in his hand to draw a rectangle of two bricks by three bricks on the ground. Then, he took a piece of paper, tore it into pieces, and placed it on the floor tiles one by one:
"High points, front door, back door, four corners. Then one should be installed every few sections of the outer wall. Let me think about the distance... Well, I haven't seen your drawings, so I can give you a rough estimate..."

Finally, the 30-something middle-aged auxiliary policeman came to a firm conclusion:

"If we don't consider the courtyard and the rooms, we need at least 24 cameras just for the periphery. I have a relative who does this. One camera costs about 1000 yuan, the supporting network project costs tens of thousands, and the monitoring backend equipment costs to yuan. Add the tension alarm and vibration alarm sensor... yuan?"

Shen Le showed a poor smile.

One hundred thousand?

What one hundred thousand?
He only had 30,000 yuan in his pocket. No, after eating and drinking recently and purchasing various woodworking tools and materials, it was less than 30,000 yuan. One hundred thousand yuan to install a security system?
Let him think about it and decide whether to sell the two pieces of old furniture first... No, let's wait until he finishes taking the profit from the repairs and charges the copper plates as much as possible!

Old furniture is common, but copper sheets have unusual power... This can reverse myopia, stop bleeding, regenerate muscles and fix bones immediately. It is a completely supernatural power. At a critical moment, it could mean a life. How can you just take it out and exchange it for money?
"I'd better put a circle of barbed wire on the wall first! - By the way, do I need to report to the police station before putting up the barbed wire? Does anyone recommend a worker? Or should I find someone directly?"

"In theory, no... Uh, is your house a protected building? You can't mess with protected buildings!"

"I don't think so. When I inherited the estate, my lawyer told me that it was not a protected building."

"lawyer……"

Shi Guangbing shook his head slightly, his face clearly showing "I can trust a lawyer's words." He pondered for a moment:
"You should check... go to the government website and see if your house is on the public list. Or go to the cultural heritage department and ask... or the Housing and Urban-Rural Development Bureau? Don't worry, let me help you find out!"

Shen Le touched his wallet and the only 30,000 yuan left in it, and could only nod perfunctorily. Alas, it was not just about installing surveillance. Just this big house with six courtyards, how long would it take him to clean it?
One robot vacuum cleaner can clean one yard at most, so six yards means six robot vacuum cleaners. No, robot vacuum cleaners are not very flexible when going up and down stairs, and they can easily turn over. So one robot vacuum cleaner should be set to clean the house and the other to clean the yard.

In addition, we also need to clean windows, doors, furniture, repair tiles, and clear drains...

Even if you lock up the unoccupied yard and close all the unoccupied rooms, you still need to open the windows at least twice a year to ventilate and maintain the house. The daily maintenance of this house alone is a huge expense!
He was almost wearing a worried look on his face. Shi Guangbing glanced at him, but he was too busy to give any advice. He was weighing it in his mind, looking at the tablet, and communicating with his colleagues on the intercom. From time to time, voices could be heard on the intercom. It should be the police in other locations who were also searching:
"I looked in the City God Temple, but couldn't find it."

"I have also looked in Yuantong Zen Temple, but there is nothing there."

"There's none near the big stage."

"I've searched the house in Alley One... Alley Two... Alley Three..."

"Suspect..." "What? You asked for professionals to come? Great! When will the professionals arrive? Oh, the professionals have already gone to the child's home to look for clues? Got it..."

He was in charge of communication, while the older auxiliary police officers held up the long pole with a flat plate and swept the cabinets one by one. Shen Le curiously poked his head out:
"what is this?"

"Life detector."

Shi Guangbing tilted the tablet towards him and said in a tired and hoarse voice:
"Just borrowed it from the fire department."

Oh... that's good, it saves him from looking for the key to open the cabinet. Wait, a locked cabinet shouldn't be something a child can climb into, right?

In, out, upstairs, downstairs. After searching the right road, they searched the left road, and after searching the study room at the first entrance on the left road, they used the life detector to stir the pond at the second entrance. Finally, the three of them filed into the last entrance on the left road.

"This is the last yard. If there is no more here, then there will really be no more..."

Shen Le muttered. This courtyard is the largest courtyard in the whole house. In the center stands a not-so-small rockery. On top of the rockery, there is a wooden bridge leading to the pavilion called "Wangxian Tower" in the north of the courtyard. When Shi Guangbing saw the rockery, his eyes lit up and he walked up quickly:
"Here it is!"

"Where?"

"Look, a child's shoes!"

He approached the rockery, and at the bottom of the rockery, on a stone covered with orchids, he picked up a size 33 blue child's shoe, urged the auxiliary police to raise the life detector, and circled back and forth around the rockery. He bent down, and with the child's shoe as the center, he carefully searched for shoe prints on the ground:

"There's nothing here... there's nothing here either... no... no... strange, why is there still nothing?"

The entire courtyard is lush with flowers and trees. In the southeast corner stands a large camphor tree with swaying green leaves, and its shadow covers half of the courtyard. Except for the rockery in the middle and the cobblestone path leading to the rockery, the rest is all mud.

Logically speaking, if children were running and playing and climbed up the rockery, it would be impossible that there would be no footprints left on the surrounding ground.

However, Shi Guangbing used the best skills he learned in the police academy, tracking footprints, and he was almost done licking the mud in the entire yard, but he still couldn't find a single footprint.

"Did he go into the rockery? What? There's nothing in the cave either?"

"No...How about we go inside the building and look for it?"

"and many more!"

Shen Le also walked around the yard three times, but found nothing. Just as he was about to open the door, the copper plate on his chest suddenly felt hot. With an inexplicable feeling, he turned around, moved forward, and raised his head:
"Look! Aren't those a few children?"

　Thanks to @我是马甲怪, @月落乌泣, @路边的慢壳兽 for the 100 starting coins

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(End of this chapter)