Chapter 52 Waste Utilization
Chapter 52 - Waste Utilization
At the 911 Air Force Base, many jobs can be completed with the assistance of highly automated machines, and do not require too much manpower.
After all, compared with the cost of machines, manpower is still quite high most of the time.
Especially for those with high education, college students nowadays are very valuable, and no one is willing to let them move bricks and carry heavy bags.
All Chen Fei has to do is to follow the instructions, click the buttons, push and pull the joystick a few times, and he can easily get it done.
Although these jobs are very basic and do not require any technical content, several teams in the logistics department just can't spare the energy to deal with them at this critical juncture. Everyone is busy working overtime to sort out the container materials, so they can just hand over the simple work to Chen Fei.
For undergraduates who have just graduated, it is not difficult to get started. With a little advice, they can quickly become proficient.
In just a few minutes, Chen Fei finished dealing with the domestic garbage and kitchen waste that had accumulated for many days. The biodegradable agent automatically sprayed in the reaction tank had an immediate effect. The stench in the air began to fade rapidly, and when it was blown by the wind, there was basically no odor left.
Under the right temperature and humidity conditions, biological tissues and plastic components will be completely decomposed by various bacteria and active enzymes in up to 24 hours, turning into a mass of organic paste with complex components but rich in nitrogen, phosphorus, potassium and other chemical elements. After dehydration and granulation, it is a ready-made organic fertilizer.
Inorganic materials and metals that cannot be "digested" by biodegradable agents will be filtered out and processed separately.
The work that really takes a lot of time is to deal with work waste from various departments, especially the failed aviation consumables and over-guaranteed parts of the machine repair team. There are all kinds of messes, mostly metals, plastics, glass and ceramics.
Just like now, the "small pot" that rolled all the way from the "hill" to Chen Fei's feet really has everything!
Bend down and pick up this "small pot", hold it in your hand and look at it, inexplicably have an appetite, always want to try to take a bite to taste the taste, Chen Fei forced to suppress this strange "pica" thought, like "hallucination", are sequelae of magic potion, probably can not be cured, have to overcome it all the time.
It turns out that this rectangular "pot" is neither a hot pot nor a pot for cooking, but a directional antenna pot for sending and receiving radio signals. From the parameter introduction printed on the back, it supports multiple frequency bands and can send radio signals up to 15 kilometers away.
Except for some external metal parts that are slightly deformed, this antenna pot with a diameter of about 30 cm looks relatively intact, maybe it can still be used.
Thinking of giving it a try, Chen Fei found a dozen wireless APs in the garbage dump like a small mountain. Perhaps the 911 Air Crew Base is replacing old equipment recently, and these old guys are directly eliminated from their original positions and thrown here to be decomposed and regenerated.
I tried to power up these APs and connected them with my mobile phone. They were all good and could be used normally.
This is such a waste.
A full man does not know the hunger of a hungry man. The 911 Air Crew Base directly scrapped and recycled the old APs that can still be used, while my fellow villager Teacher Shen Fei has been disconnected from the Internet as if she was isolated from the world.
If I can use it again...
Chen Fei's heart moved. Thinking of this, he did not hesitate too much and quickly took action.
This pile of waste waiting to be processed is actually a small treasure. You can always find some surprising gadgets.
After digging for a while, Chen Fei found eight more antenna dishes, hundreds of APs of the same model, a dozen AC controllers, several directional gain antennas of different specifications, a dozen omnidirectional general antennas, several large rolls of optical fiber, a total of thousands of meters of copper core high-speed network cables, a dozen pairs of full-duplex photoelectric signal relays, switches replaced with APs, some solar panels, several sets of chemical energy batteries with 60% of their capacity life left, DC transformer modules of various specifications, a dozen stainless steel boxes, and even a few book-sized mini computers. It seems that he just caught up with the batch upgrade of network equipment at the 911 Air Force Base, so he was able to replace such a large number of things.
After all, he is a serious undergraduate student, even if he studies economics, even if he has never eaten pork, he has more or less seen pigs run. Chen Fei is not completely ignorant of what equipment is needed to build a home wireless network environment. He asks AI when he is in doubt, and with some bridging equipment, great things can be accomplished.
Although these things found in the garbage dump come from different places and originally have different uses, it is feasible to piece them together, find the corresponding supporting protocols, frequency bands, interfaces and electrical standards, and build a segmented wireless communication relay network link, which is limited to civilian use and does not have too many requirements.
The Logistics Department did not object to Chen Fei's idea, but gave some help.
After all, Mr. Shen is a neighbor of the 911 Air Crew Base, and the two sides often have exchanges. It is just a piece of cake to help the neighbors get online, and it is also waste utilization, without much extra expenditure.
Instead of scrapping and disassembling these old equipment, it is better to continue to use their residual heat, so they are naturally very happy.
Borrowing a high-precision contour map of the vicinity of the air base from the tower, applying for a special public network interface from the communications team, and then using the free time of guarding the Target low-temperature nuclear fusion energy tower on night duty, Chen Fei quickly planned the deployment plan of the wireless relay link and assembled some equipment.
He planned to build a set of signal relays every eight kilometers between the 911 air base and the mountain elementary school. Two directional antenna dishes were responsible for listening to and receiving radio signals in different directions. The communication AP converted and amplified the signal. Solar energy was used as the power source, chemical batteries were used for energy storage, and capacitor batteries were used as backup redundancy. A full charge could last for a week, which was enough to cope with extreme weather.
The maximum bandwidth of the entire relay network link can reach 6742Mbps. Taking into account interference and loss, at least 40% to 50% of the stable bandwidth can be retained. The signal delay is not too exaggerated, which is completely sufficient for use. Even in rainy and snowy weather, it will not have much impact.
On a rare day off, Chen Fei started to do it himself.
An outdoor optical fiber was pulled out from the gate of the 911 Air Crew Base. Along the way, a hand drill was used to drill holes in the rock, and rock nails were inserted to fix the optical fiber. It was not until five kilometers away from the base that the first relay station was built with three recycled metal pipes and foam cement.
The transmission power of the active antenna dish is 3W, which leaves enough redundancy for climate interference. There is also the WiFi antenna on the AP side, which can cover the network signal within a radius of 500 meters outdoors.
From the 911 Air Crew Base to the mountain primary school where Teacher Shen Fei is located, the walking distance is about 21 kilometers. One optical fiber saves 5 kilometers, and the remaining 16 kilometers only require three relay stations.
It doesn't take much time to build a relay station. It can be done in less than half an hour, because many tasks are prepared by Chen Fei in his spare time.
The most time-consuming thing is to transport equipment along the ridge.
After two round trips, Chen Fei pushed the wheelbarrow to the location of the last relay station until the sun set.
There were barking sounds in the school yard of Teacher Shen Fei. Both dogs, "Ah Mao" and "Ah Hu", were barking non-stop.
Approaching the school where the barking stopped abruptly and there was no more movement, Chen Fei shouted loudly: "Teacher Shen, it's me!"
He knew very well that the two dogs were barking non-stop because they were startled by the positioning guidance laser beam he had just projected to the school location at the second relay station.
Although dogs can only distinguish a few colors, they can still keenly detect abnormal bright spots.
The distance between the relay station and the school is closer than planned, only about 6.7 kilometers, which means that the signal will be stronger and more stable.
"Huh? Chen Fei, it's you! I was really scared. Classmates, it's okay!"
Shen Fei's head and the muzzle of a gun popped out from behind the wall. When he saw that it was Chen Fei, who was pushing a wheelbarrow, he immediately breathed a sigh of relief.
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