Middle school students homemade small satellite will be lifted in the second half of the year, social status has exceeded 6 million.

category:Global
 Middle school students homemade small satellite will be lifted in the second half of the year, social status has exceeded 6 million.


The news of the Beijing news may not be as remote as you think. This year, the Fengtai juvenile two, a man-made satellite developed by 31 middle school students in Beijing, will go up into the air. Reporters learned from Fengtai District, Beijing, this is the area relying on its advantages in space resources, launched one of the characteristics of space science education. At present, the satellite has been designed, and the prototype will enter the vacuum environment test and other links. The size of 6 cubic meters, the golden cuboid shell, welded dozens of dark blue solar panels, a black camera, and two antennas that can change direction like the antennae... Yesterday, Fengtai District launched the China space day theme activity, on the scene, several middle school students from Fengtai twelve set off cover head, uncovering the veil of Fengtai teenager No. two and teenager dream two satellite model. In 2016, the predecessor of Fengtai juvenile two - Fengtai teenager No.1 and teenager dream No. 1 was launched in the Jiuquan satellite launch base with the long march eleven launch vehicle, which is the first popular science satellite developed by middle school students in China. Compared with No. 1, the two satellite has larger volume and increased function. The responsible person of the Fengtai District Education Committee introduced the project, which was launched in April 2017. 31 middle school students from Fengtai, Haidian and Dongcheng participated in the research and development. At present, the contents of theoretical learning and satellite design have been completed. Yesterday, it was shown a prototype based on an earlier plan, and then a series of tests to simulate the high altitude environment, test its work effect, and then assemble a satellite that is really used for launching. The satellite will be launched in the second half of this year. Yesterday (23), Beijing East High Youth Science and Technology Museum, students in the practice of disassembly and assembly of 1:1 satellite model. Wang Jianing, a journalist from the new Beijing News A man-made satellite, from design to assembly, has to go through a series of complicated links. Are all these links handled by the students? Gong Wancong, the chief designer of the two Fengtai teenager, said that the process of making artificial satellites will be involved in the process, and a series of theoretical training is carried out for the children of different ages. However, professional teachers will be instructing in the field beyond their professional knowledge and hands-on ability. The number of satellites is large and their uses are wide. Gong Wancong introduced that communication, navigation, remote sensing and scientific experiments are the most common functions of artificial satellites, and the weather forecast and radio and television can not be separated from remote sensing satellites and communication satellites. Fengtai teenager two can achieve communication and remote sensing functions. After a lift, students can send or receive signals to it at a given time or through a camera. However, Fengtai teenager No. two is still different from the ordinary satellite, belonging to the popular science satellite, which is mainly to reach the section. General purpose. The requirements for the function are relatively minor. He admits that Fengtai teenager two is designed and manufactured according to the standard of the cube satellite to strive for a better performance price ratio, and the difference between the $100 million communication satellite and the exploration of the Harbert satellite of the universe. Cost: the small satellite price is now over 6 million As we all know, the price of aerospace materials is high. How high is the cost of an artificial satellite that can withstand the space environment? Is it worth paying millions of dollars for middle school students to launch a satellite that doesnt have much practical value? Gong Wancong admits that making satellites has a high threshold in terms of time, knowledge and economic cost. Not all secondary school students can participate in the whole process. However, he believes that the significance of the project lies in the concept of radiation knowledge + practice, and that other schools can carry out popular science education in a part of the actual situation. For example, the application of satellite communications, schools can spend one hundred dollars to buy antennas, hundreds of dollars to buy a interphone, primary school students, junior high school students can pass these equipment, receive the real signal of space hundreds of kilometers outside, the location of the antenna, different time will change the intensity of the satellite signal, which is very attractive. Yes. He said that in big cities, many educational groups also have conditions to make satellites, and Shanghai and Zhejiang provinces have shown interest, hoping to draw on the Fengtai juvenile two model to carry out popular science education. Mystery: how is the satellite born? How did man-made satellites on tall buildings come into being? Gong Wancong, a background in the radio background, worked in the center for the Academy of Chinese Academy of Sciences and was also the chief designer of the two Fengtai juvenile subject. Taking Fengtai teenager No. two as an example, he unveiled the whole process of the birth of the satellite to the new Beijing News reporter. To make artificial satellites, we first start with the functions, clarify the tasks to be completed, and then design them from the engineering point of view. The configuration of a satellite (called the Star) is the first part to be designed; then, in order for the satellite to operate far away from the earth, it needs to determine its energy system, design the power supply system, and most satellites will be able to charge the batteries through the solar panels to meet their energy requirements. How many panels to weld will need to be analyzed. Because the environment in space is different from the earths surface environment, the way of heat conduction is also changed. Compared with the air convection on the ground, the heat conduction of outer space is mainly through radiation and conduction, and the equipment on the satellite has its normal operating temperature range, so the temperature control system should be considered. In addition, after the satellite is lifted, it needs to keep in touch with the ground and carry out its instructions, and the radio remote control system needs to be designed separately. Finally, according to the different functions of the satellite, it is necessary to carry the corresponding functional devices, such as cameras and transponders, which are called payloads. With these, a complete satellite is formed. After that, it was assembled with space materials to test its working state through a series of tests. After all, the satellite would sit on the rocket and be sent to outer space. Source: Beijing News Editor: Guo Ping _B7442 Because the environment in space is different from the earths surface environment, the way of heat conduction is also changed. Compared with the air convection on the ground, the heat conduction of outer space is mainly through radiation and conduction, and the equipment on the satellite has its normal operating temperature range, so the temperature control system should be considered. In addition, after the satellite is lifted, it needs to keep in touch with the ground and carry out its instructions, and the radio remote control system needs to be designed separately. Finally, according to the different functions of the satellite, it is necessary to carry the corresponding functional devices, such as cameras and transponders, which are called payloads. With these, a complete satellite is formed. After that, it was assembled with space materials to test its working state through a series of tests. After all, the satellite would sit on the rocket and be sent to outer space.