LED lighting up the "Shenzhou eleven" flying road

In the dawn of October 17th, the Jiuquan satellite launch base, the Long March two f remote eleven rocket was millisecond and soaring. Under the spotlight, astronauts Jing Haipeng and Chen Dong joined the eleven manned spaceship. "Shenzhou" stretches the sun's wings and chases the heavenly palace two track, which is launched at the mid autumn festival full moon. It will "hand in hand" in two days. It's "heavenly palace" which is walking alone on the 393 kilometer near the circular docking rail. It will work hand in hand for 30 days in 510 main research cabin and the cabin light. Spacecraft coding command equipment, door balancing valve, manual charging and discharging valve, hatch door rapid leak detector, external loop liquid temperature sensor, instrument panel, hand-held control rod, manual control right bulkhead unit, cabin / exterior lighting equipment, integrated display unit, time unit, international rescue sign. Seeing this dense terminology of special instruments and equipment, it is difficult for readers to estimate "vision". It is only an incomplete statistic of the equipment developed by Lanzhou Institute of Space Technology Physics (510) to ensure the smooth rendezvous and docking of "heaven" and "God" and subsequent tasks. The localization rate of manual control equipment and display instrument is close to the 100% rendezvous and docking of the eleven manned spacecraft and the heavenly palace two. The astronauts will use 510 developed coding command units, integrated display units, manual control and display instruments, cabin door leak detector, balance valve and illuminating system, and a large number of equipment. This time, the eleven coding command equipment has been widely applied in recent two years to replace imported devices, so that the reliability of equipment is further improved, and the localization rate of equipment is nearly 100%. In the development process, 510 researchers in order to verify the rationality of a communication protocol software design, designed different experiments for tens of millions of tests. When the test was completed and no 1 bit data error occurred, the feasibility of the design was confirmed. And examples like this are numerous, and everything is done to verify that they are thorough, thorough, reliable and reliable. When astronauts wear spacesuit on the seat, they can send manual commands to the controlled device by using a similar switch board with a multi-function key "game handle", or hand control commands can be sent by the manual right-wing bulkhead unit. The relative distance between seats and dashboards exceeds the reach of astronauts. So there is a telescopic hand-held control rod specially designed for astronauts on Shenzhou, which can directly operate part of the switches and buttons on the dashboard. Cabin lighting and rendezvous and docking lighting equipment, using LED light source God eleven, will go through the earth shadow area periodically during the vast space travel. This will experience a long time of darkness and affect the smooth completion of the on orbit tasks. The lighting facilities and rendezvous and docking lighting facilities in the spaceship cabin not only provide the astronauts with working and living lighting, but also provide camera assisted lighting for manned spacecraft and rendezvous and docking of the space laboratory in the shadow area. "In space, if we use the incandescent lamps and energy saving lamps directly used in our lives, we will not be able to extinguish them in a few days. What light sources are used on the spacecraft? God eleven spacecraft cabin lighting (near floodlighting) and rendezvous and docking lighting (long distance lighting) uses LED light source, solid state lighting source. Yang Jun, director of product design for the five Academy of space technology, which is responsible for the development of the equipment, said 510. He pointed out that when manned spacecraft had cabin lighting and rendezvous and docking lighting equipment, when the spacecraft entered the shadow area of the earth, the astronauts could still correctly interpret the instruments in the cabin, manually operate all kinds of switches, and would never miss it again. The spacecraft and space laboratory rendezvous and docking also had a successful guarantee. 。 The balance valve of the "little door god" reentry module is located on the cabin door of the Shenzhou series spacecraft, and the front door balancing valve is installed in the Shenzhou series spacecraft and the heavenly palace series front door and the target vehicle front door door body, which are used to balance the pressure between the two compartments, thus ensuring the astronauts' wear. The cabin is safe. The fast leak detector is used for airtightness detection after docking and docking. When the hatch door or the docking surface leak, the pressure changes faster and more obvious. With this characteristic, the hatch door fast leak detector can control the gas pressure acquisition accuracy in more than a dozen pallets, and give accurate test results in 8 minutes. God eleven orbital compartment hatch door rapid leak detector inherited from "Shenzhou eight" began to design the manned two phase design status, can be used for one machine. At present, the fast leak detector of the hatch door has become the "standard" equipment for manned spacecraft, providing solid security for the astronauts' cabin activities, and using the domestic animated movie "Xiao Shen Shen" and the fast leak detector of the hatch door can be regarded as the "small door god" of manned spacecraft. 510 Dong Yipeng said that the air tightness detection technology and products of spacecraft hatch doors have been awarded the technology award of the whole army and Gansu province for many times. In the next few years, China's spaceflight rapid leak detector will continue to play the role of "door god" in the process of building space stations in space, and will escort the manned spacecraft. In the thermal control subsystem, the outer loop liquid temperature sensor developed by 510 Ding Chengbin and others is also a very important "little thing". It is installed on the outer loop of the transport spacecraft and is in the non sealed cabin propulsion cabin, which is used to measure the temperature of the fluid loop and convert the temperature signal into electrical signal. This feedback signal provides a direct basis for the thermal control subsystem and even the temperature control of the spacecraft, thereby indirectly ensuring a balanced temperature environment in the spacecraft cabin, which provides a guarantee for the normal operation and smooth operation of the spacecraft system. 6 kinds of baby "Tiangong No. two" has been produced in the flying furnace. It is the real sense of space laboratory. The space science and application project is also the largest in manned space missions. After the rendezvous and docking mission was completed, the astronauts entered, and there were really only two experiments involving the eleven astronauts who participated in the experiment manually and brought back the samples: the space integrated material experimental furnace and the higher plant incubator. Among them, the new generation of space experiment payload, the space comprehensive experimental furnace, commonly known as "stove", is the masterpiece of the 510. In the pilgrimage to the west, Sun Wukong was made up of "Eight Diagrams and eight ingredients" by Tai Shang Lao Jun's "Bagua stove", only to make gold heart and liver, silver heart, copper head, iron back and eyes. Most of the top gear (such as Golden hoop stick, nine tooth rake and purple gold bell) in the western tour are all from the Bagua stove. Now, what are the magical effects of "stove" from heaven? According to Zhang Zhengjun, who is responsible for the project of the 510 Aerospace Electrical and mechanical products division, the space comprehensive material experimental furnace is an important means of preparing space materials. It is prepared by heating furnace for semiconductor materials, composite materials and superconducting materials at high temperatures of 900 degrees Celsius. Because in space microgravity, ultra high vacuum and super clean conditions, the materials prepared will be very uniform. "A semiconductor material prepared by the United States in its space station can only produce more than 200 grams at a time, but a chip cut out of this material is worth a supercomputer." Therefore, the preparation of future space materials will be a good preparation for the "space factory". Popularly speaking, the internal structure of a stove is like a revolver plus an electric stove wire. The sample in each barrel is about 200 millimeters long and 16 millimeter thick. Zhang Zhengjun said that as long as the heavenly palace two was before heaven, 6 of the 18 materials selected by scientists were loaded into the "oven" sample management unit, that is, the barrel of the revolver. These 6 materials have been prepared in October 8th. After entering the heavenly palace two, Jing Haipeng and Chen Dong will open the stove, take out the 6 materials, and then install them into second batches of 6 materials. When the astronauts return, they can take out second batches of 6 materials and put them into the last 6 kinds of materials. A total of 12 samples from the first two batches will be brought back to earth by astronauts for analysis by scientists. The third batch of 6 materials is an exploration of "space factory". Whether or not it has been retrieved has not been decided yet.