I bought a prison in the United States.

Morris looked suspicious:

"Back-illuminated structures require thinning the silicon wafer to a few micrometers in thickness, and then doping and electrodes on the back side."

"With the current two-micron lithography precision, it's not impossible to do this, but the yield rate would be extremely low."

"Out of ten samples, only two or three might be able to run successfully."

"No, Mr. Morris, I think two or three will be enough!"

Craig picked up the conversation, his tone brimming with excitement:

"The sixteen cameras in the corridor do not all need to use self-developed modules."

"We can first use six self-developed modules to cover the key corridors in areas A and B, and temporarily purchase Honeywell's finished cameras for the remaining ten locations."

"We will gradually replace it once the technology matures."

Lin Ge nodded.

This is exactly the solution he wanted; they didn't need to pursue perfection all at once before the technology was fully understood.

First, get the system running using a hybrid architecture and use real-world data to prove its effectiveness before discussing further optimization.

After all, a complete upgrade of the entire monitoring system would require at least a million dollars.

Currently, some of the funds in Ringo's possession are still being held by Judge Hammond, and what he needs is a sample that can break the deadlock.

Once this product is actually released, plenty of people will want to collaborate with him, and he won't have to worry about funding at all.

"Don't get too excited yet, there's a second challenge."

Omar took a step forward, his expression still grave.

The former telecommunications engineer reluctantly opened his notebook and laid it out on the table next to Craig's drawings, his face full of helpless frustration.

His notebook was filled with calculations he had repeatedly worked out but could not find a solution to, along with several crossed-out and rewritten error notes.

"It's still a signal transmission problem. I've tried all the solutions, but none of them will work if we follow your requirements."

Omar tapped his fingertip forcefully on the jumbled numbers in his notebook:

"The sixteen cameras stretch from the monitoring room to the farthest point of Zone D, a straight-line distance of 280 feet."

"If we follow the conventional approach and use thick copper coaxial cables as the backbone, with each camera having its own separate transmission cable, the total cable length would exceed three thousand feet."

In that case, the cost of materials and construction would completely deplete the budget, making it impossible to proceed.

Lin Ge was well aware of this. He glanced at the flawed traditional deductions in his notebook and said calmly:

"Traditional point-to-point cabling is a dead end. Have you ever thought about changing your approach and using thicker Ethernet cables?"

As soon as he finished speaking, all three people present were stunned.

Lingo reached into his notebook, flipped it open, and shoved it in front of Omar. The wiring logic on the diagram was so clear it was practically perfect.

"The Ethernet standard is the IEEE 802.3 specification, which was only released in recent years. The related devices on the market are all new, but the principles have been fully verified."

"A thick cable trunk line starts from the monitoring room and runs through each monitored area in turn along the cable trays in the ceiling."

"All cameras can be connected by simply using a tap to connect the signal along the way, completely eliminating the need for separate cables."

"With this architecture, the total cable length can be reduced to less than 2,000 feet, and the cost saved is enough to equip a complete set of repeaters and transceivers."

Omar stared intently at the design drawings before him, his fingertips trembling slightly.

Although Ling Ge's drawing is somewhat ugly, the underlying ideas are quite complete.

Having worked in the telecommunications industry for many years, he instantly understood the feasibility of the solution and couldn't even find any logical flaws.

In the mid-1980s, the Ethernet architecture was considered cutting-edge even in professional fields.

Moreover, it is used in scenarios such as prison surveillance.

Replacing traditional star cabling with a local area network architecture directly saves nearly half of the copper cabling in the prison, a concept that overturned his preconceived notions about technology.

He suddenly looked up at Ling Ge, and this time his expression also became somewhat uneasy:

"This... Mr. Chen, where did you get this cutting-edge network architecture from?"

This is a technology that ordinary laymen cannot access at all.

At this moment, Omar's gaze toward Ringo no longer held the contempt he had shown before.

The problem that he had struggled with to no avail was simply described in a casual remark by Ling Ge, and the difference in their approaches shocked him.

Lin Ge's expression remained completely calm as he spoke indifferently:

"Don't think that only you understand technology. Among the engineers I've met, your current thinking is still at the basic apprentice stage."

Craig and Morris exchanged a glance, and their gazes toward Ringo completely changed.

They had initially thought of Ringo as a demanding prison administrator, but now they realized that this Asian man possessed remarkably strong technical skills.

The three had no more doubts. Lin Ge's proposal hit the nail on the head, and the authenticity of the technology could not be faked. His strength was enough to convince them.

"The third question, I know it without you having to tell me, is about video storage and alarm logic."

Ringo looked directly at Morris and cut to the last problem.

Morris's eyes widened instantly, his face filled with astonishment. It turned out that Lingo already knew the most difficult core problem all along.

He subconsciously pulled out a folded piece of paper from his pocket, which contained only a few messy drafts.

These were all scattered thoughts that he had no idea how to form, and could not be considered a complete line of thought at all.

Before Morris could speak, Ringo cut to the heart of the problem and then slowly revealed the solution:

"Traditional 24-hour continuous recording requires sixteen cameras to consume more than ninety videotapes every day."

"If at least 600 storage disks are consumed every week, the cost, manpower, and archiving are all burdens that current prisons cannot afford."

"I think if we're going to upgrade, then there's no need for 24/7 recording; we can just trigger recording dynamically."

Morrison immediately pressed further:

What does "dynamically triggered recording" mean?

"Recording only starts when there is any abnormal movement on the screen, and stops when the screen is still, thus reducing tape consumption at the source."

Morris was completely stunned. He quickly took out his pen and eagerly began to record every word Ringo said.

"In layman's terms, it works by performing a difference operation between every two frames to generate a difference image."

"Once the number of changed pixels exceeds 15% of the total pixels, it will be judged as abnormal behavior such as personnel movement or conflict."

"At that point, the video recorder will be triggered to record and mark the timestamp. The video will then freeze for five seconds before automatically stopping."

"In addition, by adding another layer of delayed filtering logic to deal with the interference from swaying leaves, we can minimize the chance of false triggering."

Lin Ge spoke at a steady pace, explaining the complete algorithm logic and execution process clearly in just a few words.

Morris quickly wrote down the pseudocode and flowchart.