Chapter 52 - Waste Utilization
At the 911 Air Service Base, many tasks are assisted by highly automated machinery and do not require too much manpower.
After all, compared to the cost of machines, manpower is quite high most of the time.
Especially those with high education. Nowadays college students are very valuable. No one is willing to let them carry bricks and carry big bags.
All Chen Fei has to do is follow the instructions, click the buttons, and push and pull the joystick a few times, and he can easily do it.
Although these tasks are very basic and do not have any technical content, several teams in the logistics department are completely unable to spare the energy to deal with them at this juncture. Everyone is working overtime and busy sorting out the container materials, which can just be simple. The work was handed over to Chen Fei.
For newly graduated undergraduates, it is not difficult to get started. With a little help, you can quickly become proficient.
In just a few minutes, Chen Fei finished processing the domestic garbage and kitchen waste that had accumulated for many days. The biodegradant automatically sprayed in the reaction tank had an immediate effect, and the odor in the air began to change rapidly. It is light, and when it is blown by the wind, there is basically not much odor left.
Under appropriate temperature and humidity conditions, within 24 hours at most, biological tissues and plastic components will be completely decomposed by various bacteria and active enzymes, turning into a complex mass rich in nitrogen, phosphorus, potassium, etc. The organic matter paste of compound elements is dehydrated and granulated to become a ready-made organic fertilizer.
Inorganic materials and metals that cannot be "digested" by biodegradants will be filtered out and processed separately.
What really takes a lot of time is the processing of work waste from various departments, especially the failed aviation consumables and over-warranty parts from the maintenance team. There is a mess of everything, mostly metal, plastic, glass and ceramics.
Just like now, from the "hill" to the "small pot" at Chen Fei's feet, there is really everything!
Bent down to pick up this "small pot" and looked at it in his hand. He felt an inexplicable sense of appetite. He always wanted to take a bite and taste it. Chen Fei forcibly suppressed this weird feeling. "Pica" thoughts, like "visions", are all sequelae caused by magic potions. It is estimated that there is no cure, and you have to overcome yourself all the time.
It turns out that this rectangular "pot" is neither a hot pot nor a cooking pot, but a directional antenna pot that sends and receives radio signals. Judging from the parameter introduction printed on the back, it supports multiple frequency band and can project radio signals up to a distance of fifteen kilometers.
Except for some slight deformation of some external metal parts, the antenna pot, which is about 30 centimeters in diameter, looks generally intact and may still be usable.
Thinking of giving it a try, Chen Fei found more than a dozen wireless APs in a hill-like garbage dump. Perhaps the 911 Air Service Base was replacing old equipment recently, and these old guys were directly removed from their original posts. Eliminate them and leave them all here to be decomposed and regenerated.
I tried to power on these APs and connected them with my mobile phone. They are all good and can be used normally.
This is such a waste.
A man who is full does not know that a man is hungry. The 911 Air Service Base directly scraps the old APs that are still usable and regenerates them. However, fellow teacher Shen Fei’s place has always been disconnected from the communication network as if it were isolated from the rest of the world. .
If it could be used again...
Chen Fei's heart moved, and he quickly took action without much hesitation when he thought of this.
This pile of waste waiting to be disposed of is actually a small treasure, and you can always find some surprising gadgets.
After digging for a while, Chen Fei found eight more antenna pots, hundreds of APs of the same model, a dozen AC controllers, several directional gain antennas of different specifications, and a dozen omnidirectional antennas. Universal antenna, several large rolls of optical fiber, a total of thousands of meters of copper core high-speed network cable, more than a dozen pairs of full-duplex photoelectric signal relays, together with the AP The replaced switches, some solar panels, several sets of chemical energy batteries with 60% capacity and life left, DC transformer modules of various specifications, a dozen stainless steel boxes, and even a few book-sized mini computers , it seems that just in time for the 911 air service base to upgrade network equipment in batches, so many things were replaced.
After all, he is a serious undergraduate student. Even if he studies in the Department of Economics, even if he has never eaten pork, he has seen pigs running around. Chen Fei is not familiar with what equipment is needed to build a home wireless network environment. If you don’t know anything, just ask AI for everything, and with some bridging equipment, great things can happen.
Although these things unearthed from the trash heap came from different places and originally had different uses, they were pieced together to find the corresponding supporting protocols, frequency bands, interfaces and electrical standards to form a Developing a segmented wireless communication relay network link is limited to civilian use, does not have many requirements, and is not impossible.
The Logistics Department did not object to Chen Fei's idea, but instead gave him some help.
After all, Teacher Shen is a neighbor of the 911 Air Service Base, and the two parties often communicate with each other. Helping the neighbors to connect to the Internet is just a little effort, and besides, it is still recycling waste, and there is not much additional expenditure.
Rather than scrapping and decomposing these old equipment, it would be better to continue to use the waste heat. Naturally, I am very happy.
Borrow the high-precision contour map of the air base near the air base from the tower, apply for a dedicated public network interface from the communications team, and then use the night shift personnel guarding Target's low-temperature nuclear fusion energy tower. In his free time, Chen Fei quickly planned the layout plan of wireless relay links and assembled some equipment.
He plans to build a set of signal relays every eight kilometers between the 911 aircrew base and the mountain primary school. Two directional antenna pots are responsible for listening to and receiving radio signals in different directions. The communication AP will convert and amplify them. The signal uses solar energy as the power source, chemical batteries for energy storage, and capacitor batteries for backup redundancy. A full charge can last for a week, which is 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. It is completely sufficient, even in rainy and snowy weather. It won't 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 Service Base. Along the way, holes were drilled in the rocks with hand drills, pitons were inserted, and the optical fiber was fixed. Only three were used until the location was five kilometers away from the base. Recycled metal pipes and foam cement were used to build the first relay station.
The transmitting power of the active antenna pot is 3W, which leaves enough redundancy for climate interference. There is also the AP's own WIFI antenna, which can cover outdoor network signals within a radius of 500 meters.
The walking distance from the 911 aircrew base to the mountainous primary school where Teacher Shen Fei works is about 21 kilometers. One optical fiber saves 5 kilometers when going out, and only three relay stations are needed for the remaining 16 kilometers.
It doesn't take much time to build the relay station. It can be done in less than half an hour, because Chen Fei has completed many tasks in his spare time.
What takes the most time is transporting equipment along the ridge.
After two round trips, it was not until the sun set that Chen Fei pushed the wheelbarrow to the location of the last relay station.
In the yard of Teacher Shen Fei’s school, dogs barked one after another. The two dogs "Amao" and "Ahu" were barking non-stop.
As he approached the school, where the barking of dogs suddenly stopped and there was no movement, Chen Fei shouted loudly: "Teacher Shen, it's me!"
He knew very well that the reason why the two dogs kept barking suddenly was because he had just projected a positioning guidance laser beam at the school's location at the second relay station and alerted them.
Although dogs can only distinguish a few colors, they can still be keenly aware of abnormally bright spots.
The relay station is closer to the school than planned, only about 6.7 kilometers, which means the signal will be stronger and more stable.
"Huh? Chen Fei, it's you! It really scared me. Classmates, it's okay!" Shen Fei's head was poked out from behind the courtyard wall, and there was a gun muzzle. When he saw It was Chen Fei, pushing a wheelbarrow, and he immediately breathed a sigh of relief.
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(End of this chapter)