"Ask the sky" launches!The vast universe, how to light the experimental cabin?

Science and Technology Daily reporter Jie Manbin

On July 24th, I asked the Tianshi experimental cabin to launch at the Wenchang Aerospace launcher in China. This is the second cabin section of the three cabins during the construction stage of my country's space station, and it is also the first experimental cabin of the China Space Station.

The China Space Station's "Ask Sky Experimental Class" is the largest single manned space cabin section in the world today. Its launch quality is 23 tons, a shaft is 17.9 meters, and the maximum diameter of the cabin is 4.2 meters. Created the "historical record" of monomer manned spacecraft. Ask the sky compartment is divided into three parts: working cabin, air gate, and resource cabin. It is not only configured with the living area and living area of ​​astronauts like "Tianhe" in the orbit life, and fully meets the "food, wearing, living and transportation" of the astronauts. Essence

The mission of "Ask the Heaven", the 510 of the 510 Hospital of China Aerospace Technology Group Co., Ltd. (hereinafter referred to as 510) was developed by a series of popular "items" such as the light lighting subsystem and lighting equipment of the cabin. When you reach the depths of the universe, play an important role in exploring the vast stars.

"Lighting Light" outside the space laboratory -outdoor lighting subsystem outside the cabin

At present, the three astronauts of the Shenzhou 14th multiplication group are performing tasks at the China Space Station. An important moment of history.

Subsequent astronauts will also go out of the cabin of the air gate of the test compartment for the first time. The development of outside the cabin is inseparable from the "lighting lamp", and the out -of -cabin lighting subsystem developed by 510 will play an important role. Outside of the cabin light lighting subsystem is a complex cabin, electricity, and light integrated equipment. It consists of a light lamp unit, a gimbal mechanism, a passive expansion mechanism, and a controller. The angle dynamic characteristics provide dynamic lighting and lighting outside the space station cabin to support the space staff's outlet activities and surveillance cameras. The device is folded tightly when the "Ask the Sky" was launched, and after the track, it will be converted to the mechanism to start in place and lock the state. The rotation range of the device is large, which can realize the brightness adjustment under different illumination requirements outside the "Space Lab", and has the function of the rail dimension.

The picture shows the light lighting subsystem of the cabin-gimbal lamp.

In order to adapt to the off -cabin environment, such as ultraviolet radiation, total dose radiation, atomic oxygen irradiation, etc., the development team of 510 "off -cabin leaps lighting subsystems" has been carried out from several aspects of materials, process, and structural design. After experiencing the failure again and again, after the rearrassment, the four key technologies were successfully overwhelmed, and the lamp structure and optical lighting system that could resist spatial irradiation and passed the special space environment ground test to ensure the guarantee to ensure that it is guaranteed to ensure that It is efficiently working in the orbit for a long time. It can also be achieved by multiple iteration optimization designs in the orbit maintenance and replacement function. The "Outbound Lighting Lighting System" developed by 510 will not only provide good lighting for the long -term residents and out -of -class maintenance and scientific research activities for space -stayed members in the "Space Lab". With the beautiful light and shadow effect, every "space blockbuster" we see is presented through its silent light.

The picture shows the light-out lighting subsystem of the cabin-Gongtai controller.

Aerospacker's "Space Home" lighting experience -lighting equipment

The space station is a manned aircraft that has been stayed in the rail for a long time. Astronauts work in the cabin, living, and outlet activities in the cabin. 510 undertakes the development of most of the lighting products of the "Ask Sky Experiment". There are 7 kinds of supporting lighting products, more than 36/sets. The newly designed lighting products mainly include scenario lighting products, portable lighting products, and overseas light lighting products.

The scene lighting products in the cabin include more than 20 categories including channel lighting, life lighting, reading lighting, maintenance of headlights, lighting controllers. This is the first time that my country has applied to the scene mode on the space aircraft to adjust the lighting technology, and it is also the first time in the world to apply a full -range application scenario lighting technology within the large -scale manned spacecraft. Due to the long -term living in aerospace members, the single lighting mode of the manned spacecraft before will cause the spacer's work efficiency, biological clock disorders, and sleep disorders. Scenic lighting products can solve The above question. The lighting mode can be accurate to the working mode, dining mode, entertainment mode, sleep mode, etc.; The lighting area can also be subdivided into work areas, living areas, reading areas, maintenance areas, etc.; Lighting switching board wired control, etc., these designs have greatly improved the convenience and comfort of astronauts' work and life.

The portable lighting equipment of the space station is mainly used for precision maintenance lighting outside the cabin and the emergency lighting of astronauts to turn or escape when power -on in the cabin is power -on. At present, there is no similar product in the field of foreign space. Portable lighting equipment meets the harsh demand for 6 hours of continuous working in the cabin and outside the cabin. It is also the first time that domestic lithium batteries have been applied to the design of portable products outside the cabin. Aiming at the problem of fire and explosion caused by short circuit of lithium batteries, the "portable lighting equipment" developed by 510 adopts a number of technologies to ensure the reliability of lithium battery space applications.

The picture shows the light cabin lighting equipment.

Pan -light lighting outside the cabin provides auxiliary pan -light lighting on the walking path and outside the cabin.It is the first time that my country has a long life lighting product that should be applied to the outside of the track.Its research and development overcome the technical problems of the long -term tolerance of the total dose of spatial power ionization, the ultraviolet radiation environment, and the atomic oxygen corrosion environment, so that the astronauts can also perform outside the cabin in the shadow area of the earth.In addition, I asked Special scene lamps such as alarm lamps, special lighting, and special lighting control boards such as alarm lights, special lighting lights, and special lighting control boards. They jointly built a bright and comfortable Chinese space station light environment.

In the launch mission of the space station, 510 continued to play its own technological advantages, combined the full scientific research forces to attack again, led scientific research with the spirit of scientific and technological innovation, and contributed to the construction of the space station of my country's space station with the character of unity and cooperation with a down -to -earth unity and cooperation. Belongs that belong to the majestic power of 510.

(Photo confession in the respondent)

- END -