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The key products are subject to industrial manufacturing base and innovation capacity, similar to the rubidium atomic clock can only be purchased from Western countries. Xie Jun far still remember they had to import rubidium, with a European company for negotiations from day to four or five am still not talk down the hardships and stuck. 'Must it yourself!' Xi'an Branch of the five branches and 510 researchers were determined to have been overcome a series of problems, developed China's first rubidium clock, a comprehensive alternative to foreign products. Xie Jun said, compared to the previous generation of high-precision positioning rubidium clocks, ranging and more precise timing and other functions, can provide more accurate positioning services. Beidou Double Star 'brothers' with high-orbit satellite is known as integrated electronic system of satellites, 'the strongest brain.' In the past, our country has two large satellite 'brain', a charge of thinking, vision and movement of limbs and other functions, and the other responsible for the physiological regulation of satellite and communication with the outside world. Overall the five branches of the Ministry and 502 developed the 'integrated electronic system', a system can be realized in the past two satellites 'brain' function, so that 'a dual brain.' 'The strongest brain' applied on a four-core chip SoC2012 our own intellectual property system and localization of ASIC chips. Both products from the program to control algorithm, from hardware to SpaceOS2.0 operating systems to application software, are 100% made in China, the performance reached the international advanced level. Beidou Double Star 'brothers' in the transport, launch surveys and in the process, to be passed high temperature, severe vibration test, it must have a strong and stable 'reinforced steel frame.' To this end, the Ministry of the five branches of the overall plant and 529 multi-channel capture world-class technical difficulties, giving them the first time the main load-bearing truss structure to achieve greater carrying capacity, lighter weight, so Beidou System 'brothers' in the accuracy of the the overall deviation does not exceed the thickness of a human hair. In the future, everyone's circle of friends may brush out Beidou System 'brothers' of the self-portraits. This is because the five branches of 508 designers for them to configure a new type of CMOS camera. Compared with previous generations, this 'self-timer artifact' light weight, small size, power consumption dropped significantly, for the first time have storage capabilities, instant access to the captured image, easy for people to keep abreast of '