Split Sky Rider

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 machine costs, 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 had to do was follow the instructions, click the buttons, and push and pull the joystick a few times, and he could easily get it done.

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 waste and kitchen waste that had accumulated for many days. The biodegradant automatically sprayed in the reaction tank had an immediate effect, and the odor that filled the air began to fade quickly, and then was blown away by the wind. After blowing, there is basically not much odor left.

Under appropriate 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 complex organic matter paste rich in nitrogen, phosphorus, potassium and other chemical elements. , after dehydration and granulation, it is ready-made organic fertilizer.

Inorganic materials and metals that cannot be "digested" by biodegradants are 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!

He bent down and picked up this "small pot" and looked at it in his hand. He felt an inexplicable sense of appetite and always wanted to take a bite to taste it. Chen Fei suppressed this weird "pica" thought forcibly. , like "vision", are all sequelae caused by magic potions. 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 pot for cooking, but a directional antenna pot for sending and receiving radio signals. Judging from the parameter introduction printed on the back, it supports multiple frequency bands and can Radio signals are projected to distances of up to 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 were all good and could be used normally.

This is such a waste.

A man who is full does not know that a man who is hungry is hungry. The 911 Air Service Base directly scrapped and regenerated the old AP terminals that were still usable, but fellow teacher Shen Fei's place had always been disconnected from the communication network as if it was isolated from 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 little treasure, and there are always some surprising gadgets to be found.

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 with different regulations, a dozen omnidirectional general-purpose antennas, and several large rolls. Optical fibers, a total of thousands of meters of copper-core high-speed network cables, more than a dozen pairs of full-duplex photoelectric signal relays, switches that were replaced together with the AP, some solar panels, and several sets of chemical energy batteries with 60% of their 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 aircrew base to upgrade network equipment in batches, such a lot of 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 does not know anything about what equipment is needed to build a home wireless network environment. With Juewen AI and some bridging equipment, big things can happen.

Although these things unearthed from the garbage heap came from different places and originally had different uses, they were pieced together to find the corresponding support protocols, frequency bands, interfaces and electrical standards to form a segmented wireless Communication relay network links are limited to civilian use, do not have many requirements, and are not impossible to achieve.

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 extra expenditure.

Rather than scrapping and decomposing these old equipment, it would be better to continue to use the waste heat, which is naturally very happy.

Borrowing a high-precision contour map of the vicinity of the air service base from the tower, applying for a dedicated public network interface from the communications team, and then using his free time guarding the night shift at Target's low-temperature nuclear fusion energy tower, Chen Fei was very The layout plan of the wireless relay links was quickly planned, and some equipment was assembled.

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 the signals, using solar energy as power. Source, chemical battery energy storage, capacitor battery for backup redundancy, a full charge can last for a week, 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 aircrew base. Along the way, holes were drilled in the rocks with hand drills, pitons were inserted, and the optical fiber was fixed. Three recycled metal pipes and foam cement were used until the location was five kilometers away from the base. The first relay station was built.

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 fiber optic cable saves 5 kilometers, and only three relay stations are needed for the remaining 16 kilometers.

It doesn't take much time to set up the relay station, it can be done in less than half an hour, because Chen Fei has prepared a lot of work in his spare time.

What takes the most time is transporting equipment along the ridge.

After two round trips, it wasn't 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, and the two dogs "Amao" and "Ahu" were barking non-stop.

Approaching the school where the barking suddenly stopped and there was no more 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 unusually bright spots.

The distance between the relay station and the school is closer than planned, only about 6.7 kilometers, which means the signal will be stronger and more stable.

"Eh? Chen Fei, it's you! It really scared me. Students, it's okay!"

Shen Fei's head and the muzzle of a gun popped out from behind the courtyard wall. When he saw it was Chen Fei, pushing a wheelbarrow, he immediately breathed a sigh of relief.

-