God nine Temple rendezvous and docking LED high-power lighting first off

A perfect landing capsule from the Shenzhou eight spacecraft at the moment, Chinese first space laboratory "Tiangong-1" has been in the vast space waiting for the Shenzhou spacecraft visited again. The rendezvous and docking, God nine main task is what? What technological innovation and breakthrough? In this regard, the reporter interviewed the China Aerospace Science and Technology Group Shenzhou nine spacecraft commander He Yu and chief designer of the, one of the experts to explain the inside of the universe.

Adapt to the future space station transportation

The implementation of China's last manned space mission Shenzhou seven spacecraft, but also a pilot spacecraft, although also equipped with a total of 3 astronauts, but the main task is to break the extravehicular activity. The Shenzhou nine, not only for the delivery of the target aircraft in the sky, but also to bring back some of the items on Tiangong-1, is the first time to achieve a comprehensive round-trip transportation.

For Shenzhou nine and Shenzhou No. seven difference, He Yu said, the Shenzhou seven astronauts or in the 'take the spacecraft', from the launch to return to the use of automatic control, without manual intervention. The Shenzhou nine manned rendezvous and docking, the astronauts have been on the 'open spacecraft'. "

He Yu said that this set of manual control rendezvous and docking system is aimed at the construction of future space station, all products are based on the original spacecraft on the upgrading ability of rendezvous and docking capability and uplink 300 kg load, fully adapt to the future space station space shuttle transport system requirements.

The spacecraft was heated with a heating jacket"

Shenzhou nine spacecraft in space for more than a day of flight, the temperature difference between the sun's surface and the cold black background of up to several hundred degrees, can be described as "ice and fire" two days. How can the Shenzhou nine spacecraft stand up to the test of "ice" and "fire" for a long time? Infrared heating cage and thermal protection system will play a vital role.

The Shenzhou nine is fitted with an infrared heating cage, which is like putting on a heating jacket for the spacecraft". For this dress, the researchers conducted a large number of experiments in the simulated space vacuum thermal environment. Large vacuum test vessel is equivalent to six or seven storeys high, is currently the largest vacuum vessel.

How does the spacecraft test the heat? As early as the beginning of the research and development China Shenzhou spacecraft, aerospace science and Technology Group eleven Institute of high temperature gas dynamics after the laboratory experiment equipment reform and painstaking research, with the simulation of the spacecraft into the thermal environment, wait for the Shenzhou nine spacecraft successfully returned to the successful completion of the task, is the spacecraft thermal protection system to ensure the safety of astronauts return to earth homes set when the distinctions won in battle.

LED light source

In order to ensure the safety of astronauts on the ground, researchers did a lot of tests for the detection of spacecraft capabilities in the launch phase, the spacecraft noise test is carried out in China has developed more than 2 thousand and 100 cubic meters in a reverberation chamber, the reverberation chamber is the largest in Asia, Yu Guoji at the advanced level of technical ability test. The test results show that the Shenzhou nine spacecraft can be safely set sail.

God nine spacecraft and some equipment quite bright, for example, EVA high-power lighting lamp for illuminating the astronauts rendezvous and docking docking target not only, also for the earth's audience to witness this exciting moment provides magnificent lighting effects. The rendezvous and docking using high-power LED light source as a spotlight, which is the first time at home and abroad.

In order to meet the needs of the manned rendezvous and docking mission, Shenzhou nine, Tiangong-1 instrument display devices using large, color TFT LCD screen to replace the previous use of monochrome display. The design is the first use of the instrument for manned spacecraft.