My Doomsday Shelter Unlimited Upgrades

Nowadays, college students don’t have a computer anymore. If he only looks at a computer or mobile phone a day, he may not be able to explore this university in his life.

Using 20 survival points to refurbish several well-preserved mobile phones and computers, Chen Yang connected the charging cable to the socket.

'ding dong'

The circuit is still operating as usual, Chen Yang exhaled, he will not be able to use up the 7500W power for a while, so he will charge it up first.

Today's survival points are relatively small, and there are still 208 points left.

While waiting for charging and turning on, he still has another job to complete.

Installation of searchlights outside the shelter.

Although the interior layout of the refuge became more and more like a mansion, Chen Yang did not forget the external fortifications.

Searchlight is one of them.

Whether it is in a movie or a game, there will be that kind of big searchlight at the shelter or the survival point.

When this kind of searchlight is turned on at night, it can turn the illuminated place into daylight, and it has an indelible effect in detecting dangers around the shelter at night, or guarding against wild beasts and zombies.

Such a searchlight is not difficult to make. It is nothing more than gathering the light source together, and through the refraction of the reflector and the concave lens, the light emitted by the light source is converged to a point, thereby gathering a stronger light.

According to this idea, Chen Yang made several LED light sources, made a larger concave lens through the production function of the system, and bonded the two into a lamp made of aluminum alloy.

20 survival points to upgrade the searchlight, Chen Yang chose to confirm without hesitation.

[LED searchlight (excellent)]:

It can emit strong light, the longest range is 2 kilometers, and the power consumption is 5KW per hour.

Upgrade Direction 20: Change the lens structure in the lamp, strengthen the light-gathering effect, and increase the farthest search distance. [-] survival points are required.

Upgrade Direction 200: Change the properties of the searchlight light source, so that the searchlight does not need power supply, greatly improves the maximum search distance and spotlight effect, and requires [-] survival points.

Additional attributes: The lethality against light-phobic creatures +60%

System comment: Under one photo, all the ghosts and ghosts are fully displayed, this is the lamp that illuminates the demon!

"Another excellent attribute?"

Chen Yang felt that his lifespan had lost another year, but when he saw the additional attributes, he felt that his lifespan had increased again this year.

"+60% lethality against photophobic creatures?"

"What is the use of this attribute?"

Chen Yangzhang Er King Kong couldn't figure it out. The photophobic creatures in his impression were basically zombies and monsters, all of which were found in science fiction movies or novels.

Oh, yes, photophobic creatures also include college students who get up at six o'clock in the morning.

But Chen Yang thought about it, what is the difference between his current situation and the novel?

There are several hundred catties of vicious cattle and cattle. If some nocturnal and terrifying creature really comes at night, the searchlight can be his best weapon.

The searchlights are generally designed at high points. Chen Yang didn't do anything, and directly installed the searchlights directly above the refuge. A wooden ladder was designed inside the house, so that the searchlights outside the house can be directly controlled from inside the house.

It is natural to be greedy for life and afraid of death. He doesn't want to go out of the house in the dark night to control the searchlight. The current shelter is four meters high, which can be regarded as the highest point of the shelter.

There is no problem with the installation of the searchlight, but Chen Yang has spent a lot of thought on how to observe the scene outside the house while controlling the searchlight.

"You can use the periscope design!"

Chen Yang searched for a long time in university knowledge, but found the answer in junior high school knowledge.

The periscope is Z-shaped, using two reflectors to make the light enter the eyes after two reflections, so that the scene above can be seen from below.

He had made such a periscope by hand when he was in junior high school, and he already had some experience. Now with the blessing of the system, there is no need to even upgrade it.

Roll up your sleeves and do it. It is nothing more than two reflectors and a lens barrel. After making the periscope, Chen Yang directly installed it on the position next to the searchlight. When you look through the periscope, you can see the scene outside at a glance. It is generally clear that his craft is once again a great success, and even the survival points for upgrading are saved.

"Everything is ready, power on and see the effect!"

'rub'

The searchlight was turned on, Chen Yang didn't rush to observe the searchlight effect outside through the periscope, but calmed down to feel the power transmission.

Counting the power supply for charging and lighting, the total power consumption in the house is now about 6000W, which will soon reach the load value of 7.5KW of the hydroelectric generator.

Under such conditions, the hydroelectric generator still did not make a rumbling sound, no noise could be heard in the house, and the electric lights did not flicker. The power transmission was very stable, and the air switch also worked normally.

Relieved, Chen Yang began to observe the effect of the searchlight.

The current sky has not completely dimmed. According to his cognition, it is still daytime, and you will not lose sight of objects when you go out. But once the searchlight is turned on, a pure white light with a large range hits the ground with a click. , with his control, this beam of light can illuminate any place within two kilometers, making it even daylight.

Easy to use!

After turning off the searchlights, I finally finished my work for today's goal, and I felt hungry again.

In order to save food, he now has two meals a day, one for breakfast and one for dinner. He plans to wait for the potatoes to bear fruit, and then arrange three extravagant meals a day.

After lighting some firewood in the kitchen and cooking some beef, Chen Yang casually threw the floating blood foam into the sewage pipe installed in the kitchen.

Hey, it works!

Not only the kitchen, but also the sewage pipes in the bathroom play a more important role. With the power supply, the water heater can also work normally. He secretly set a goal to complete the upgrade of the modern bathroom within three days.

He had had enough of the life of a primitive man.

Chapter 24 The red total lunar eclipse, the great crisis of the last days!

After filling his stomach, Chen Yang fed the sheriff again. The sheriff only wakes up when cooking and working, and will continue to sleep after eating. This is also one of the characteristics of childhood.

Lying on the bed, Chen Yang flipped through the charged computer and mobile phone.

The results of the investigation were both joyful and disappointing.

Happily, there are many games and videos stored in the phone he was looking at.

The greatest pleasure for college girls is mobile games and watching dramas. He was not wrong in his analysis of this. He just opened a pen and pen, and there were many movies or variety shows he hadn't watched in it.

He would have to watch one movie a day for less than half a month.

The downside is that the phone has no signal at all.

4G, 5G, WIFI, none of them. As long as you open the webpage, you will keep turning in circles. At this moment, Chen Yang misses the Internet surfing era of "God's 3G is too fast and spicy". Even with only 2G, he can SMS communication.

"It would be great if there were two more..."