Can the two -dimensional code on the astronauts drinking the water bottle?

Friends who have watched astronauts in the core cabin of the "Tianhe" in our country's space station should see a two -dimensional code on the waterbags of astronauts. There are two -dimensional codes on bags, even the garbage bags. Now, please take the impulse to sweep down to think about what these QR codes are used?

QR code on the space station garbage bag

(Picture source: China Manned Aerospace Official Website)

Before answering this question, let's review the length of life and work in the core compartment of Shenzhou 13 in the core compartment of the space station -from the core compartment on October 16, 2021 to April 14, 2022 , Shenzhou 13 multiplied for 183 days! So how much is three people's 183 -day consumables? Let's take a look at drinking water first. According to my country's dietary guide, when people do not sweat a lot, and the environmental humidity is basically suitable, the daily drinking water volume should be 1200 ~ 1600ml. Under the simple calculation, the amount of drinking water needed for 3 days at the rail is at least 658800ml. What is the concept? In order to facilitate understanding and convert it into our common bottled mineral water, which is equivalent to nearly 1318 bottles of 500ml of mineral water. Looking at oxygen, an adult requires about 750 grams of oxygen per day, so three astronauts need about 411.75kg of oxygen in 183 days. In addition, there are three meals, toiletries, cosmetics, sanitary products, laundry, communication facilities, and entertainment facilities. In addition, there are backup living materials that should be on emergency situations. Works for work include cabin, scientific experimental equipment, experimental samples, space station inside and outside facilities and equipment, and so on.

The Shenzhou carrier -manned spacecraft, which is specially used to transport astronauts, does not have such a large space to transport so many supplies, so the freight ship came into being. The so -called "soldiers and horses have not moved, grain and grass first". Throughout the construction process of my country's space station, each manned spacecraft will inevitably be equipped with a cargo spacecraft to transport the goods to ensure that the grain and grass of the manned mission is sufficient. The freight ship that transports materials for Shenzhou 14 is Tianzhou 3. It is reported that the total weight of the cargo transported by Tianzhou -3 freight ships is nearly 6 tons, and there is no advancement agent, but more than 200 parcels are carried, of which drinking is drinking, of which drinking is drinking, of which drinking is drinking, of which drinking is drinking, of which drinking is drinking, of which drinking is drinking, of which drinking is drinking. Water, food, oxygen and other consumed supplies are about two tons. Tianzhou 3 also brings a set of space uniforms. The other two sets of space clothes have been transported to the space station through Tianzhou II.

Space station cargo package

(Picture source: China Manned Aerospace Official Website)

In order to facilitate unified management and reduce costs, the packaging of cargo bags carried by freight ships has achieved standardization and modeling, and it is also conducive to the standardization of the cargo management process of multiple freight ships. Can greatly improve management efficiency.

Standardized cargo bag

(Picture source: China Manned Aerospace Official Website)

That massive material is transported through a cargo spacecraft, and the astronauts need to use and install these goods in the orbit. At the same time, a large amount of garbage generated by more than half a year must be loaded into the cargo ship to be destroyed. How to ensure that the entire process is not wrong? The internal space of the Tianzhou freight ship is about 40 cubic meters, with more than 40 lockers and more than 200 cargo grids. All parcels are placed in the cargo grid according to certain rules. Zhongshun is smooth, take the goods. In the past, due to the huge types and quantities of goods, there were often things that could not be found for astronauts who just settled in the new home. To this end, from Tianzhou II, the freight ship has developed a smart cargo management system to deal with this problem.

The name, quantity, placement of the goods in the freight ship will be configured in the smart cargo management system in advance before the cargo spacecraft is launched. The QR code on the drinking water bag mentioned earlier is actually the electronic label of the cargo. It is also part of the entire cargo management system. There is a QR code on each cargo bag. The astronauts can check the specific information of the cargo in the cargo bag by scanning the QR code. When the astronauts organize and use the cargo after entering the cargo spacecraft, the above data will be updated in time as required, so that the small changes in the goods in the space station can be recorded. At the same time, the relevant data of the cargo will synchronize the system through the system. Transmitted to the ground, so that the flying controllers on the ground can also master the inventory of the goods at any time. In this way, through the intelligent cargo management system, the astronauts and ground staff can clearly understand the goods in the space station, realize the interaction of heaven and the earth, and facilitate the use of astronauts to ensure the efficient management of the space station goods, make the work and life of the astronauts easier Convenient.

Today, the Tianzhou III Ventaling Space Station, which has completed the mission of delivery, will be selected under the ground control and then entered the atmosphere.

Scientific review: Yu Lei Researcher at the General Department of the China Space Technology Research Institute

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