Before you know it, time flies in a blink of an eye, and Chen Mulin has been on Mars for two months.

Today, the potatoes are lush and ready to be harvested in about a month.

Over the course of two months, the two unmanned rovers have explored a large area without finding any suspicious signs.

Just two months later, Rover 1 finally sent back the good news.

It was a machine that had been left behind, the key to escalating privileges, and it had to be brought back.

Therefore, Chen Mulin has to prepare a long-distance travel plan.

In the live broadcast room, Chen Mulin was telling the sailors about the plan this time.

"Brothers, this is the 68th Martian day of the anchor on Mars, and now there are two news, neither of which is too bad. ”

"First, I originally planned to eat food for a year, but the anchor didn't control himself, and now he has consumed nearly half, and the good news is that everyone knows that the potatoes are about to be harvested!"

"Second, the good news from Rover 1 that it found a missing machine at the base in a plain that will be the key to a better life on Mars, so it must be brought back. ”

"But that plain is a bit far from the base, and I have to be prepared for a long journey. ”

[Barrage: Is the anchor going to face the wind again?]

[Barrage: I want to go to that plain, did I Yasuo agree?]

[Barrage: How dangerous it is outside, the anchor should stay at the base and wait for the potatoes to be collected!]

[Barrage: It's been two months, and the Martian props haven't been completed yet?]

[Barrage: The speed of this props group is not good!]

[Barrage: So, are you going to start acting out how you outside the base now?]

......

It's still some unreliable barrage, two months have passed, and I'm still thinking about the last sandstorm!

In the past two months, Chen Mulin's range of activities has not exceeded 100 meters of the base, no matter how instigated by the sailors, he just didn't listen, maybe there was a psychological shadow.

Chen Mulin is used to the trash talk of water friends, and he doesn't expect them to say anything good at all, informing them is just a routine of live broadcasting.

"Okay brothers, I'm going to start making plans now, this trip won't be too short, you have to be cautious and cautious!"

[Barrage: Don't go, come and fight us for 300 rounds!]

[Barrage: I'm really looking forward to it, how many levels of sandstorms will the anchor encounter this time?]

[Barrage: No, the anchor's position is too secretive, it's been two months, and he hasn't found his location in the Gobi Desert. 】

Chen Mulin was helpless: "Don't go to the person who fought for 300 rounds, it's been two months, can you change some new tricks?"

In the base, in addition to bathing, going to the toilet and sleeping, the live broadcast room has always been on the air, and there are cameras in every cabin of the base.

In other words, no matter where Chen Mulin goes, he can still be seen in the live broadcast room.

I don't know what the person who said this thought in his head, maybe his brain was limited and he only wanted to come up with this paragraph.

Of course, it is impossible for Chen Mulin to say in public that he is sick in the brain, it is enough to complain secretly.

In the information cabin, Chen Mulin looked at the satellite image on the monitor, touching his chin and pondering.

In two months, the No. 1 and No. 2 unmanned rovers explored a large area, and the current location of the No. 1 unmanned rover is 300 kilometers away from the base in a straight line.

Looking at the short distance, with the mileage of the manned rover, it can be reached by charging three times.

But the road is not straight, and it cannot be a straight line, and even the road on Earth does not have such a long straight line distance, let alone Mars.

According to satellite maps, two mountain ranges had to be crossed to reach the plain, and the manned rover could not fly in a straight line like an unmanned rover that could fly for a short time.

It has been calculated that the shortest distance around the mountain range is a full 1,000 kilometers, showing a zigzag.

The journey of 1,000 kilometers, at the fastest speed of a manned rover, also takes 25 hours, which is still the time required for a moment.

According to the actual computer calculation, the maximum distance to travel 100 kilometers a day is 10 days at the earliest, and it can only be done in good weather.

The limitations are obvious, the maximum mileage of the manned rover is only 100 kilometers, and there is no photovoltaic charging panel for charging, so it is necessary to bring photovoltaic charging panels.

In addition, there is the restriction that you need to be heated at night, so you have to rest in place to survive the night, and wait until the sun rises to fully charge before you can set off.

The average number of hours of sunshine on Mars in a day is almost the same as that of Earth, and even tens of minutes longer.

In other words, in addition to the more than two hours required to travel 100 kilometers, there are still 10 hours to recharge, that is, to fully charge the battery in less than five hours.

With the power generation of a photovoltaic panel, if you want to fully charge the electricity in five hours, you need to carry at least five pieces, and in order to prevent calculation errors or human errors, you can bring an extra one.

It's not that Chen Mulin doesn't want to bring more, and because of the limited capacity, he can only bring so much, you must know that photovoltaic panels take up a lot of area.

In addition, the rover does not have a living system, that is, the water cycle and the like, and it is not enough to have air circulation.

But Chen Mulin didn't have the ability and knowledge to install a life system, so he could only carry it, which needed to take up space.

It takes twenty days to make the round trip, and the cargo capacity will also affect the maximum travel of the rover.

In order to prevent accidents, it is necessary to increase the budget and bring enough water and food for a month.

In addition, thanks to the reminders of the sailors day and night, Chen Mulin also considered possible accidents this time, such as sandstorms.

Now the No. 1 manned rover has almost been "scrapped" after losing the ability to receive signals, which is equivalent to losing its eyes.

Now Chen Mulin only has the No. 2 rover to use, and he doesn't want to lose the only normal one.

Then protective measures are necessary, in order to avoid sandstorms and powerless, it is necessary to install ground nails so that they can be fixed at any time.

In order to avoid damage to the receiver, it is also necessary to bring a tarpaulin, which must be made of materials that can withstand sandstorms.

Finally, I also want to thank the water friends for the problem of, otherwise Chen Mulin may not be able to think it through.

It is inevitable that people have three urgency, and they may be able to find a corner to solve it on Earth, but this is Mars, and a bad one may become a big event.

Therefore, it is necessary to install a simplified toilet with a sealing function in the car in order to solve the problem of metabolism.

Everything was well planned, Chen Mulin got up and stretched, picked up the A4 paper of the specified plan and checked it, and then nodded.

He shook his fist at the sailors: "Brothers, it's time to work, I wish me success!"