YANG Yang1, 2, HU Yong-hui1,3

(1. National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China;

2. Graduate University of the Chinese Academy of Sciences, Beijing 100039, China;

3. Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center,

Chinese Academy of Sciences, Xi’an 710600, China)

Abstract: A wireless transmission system, which can transmit mobile monitor terminal information in different network environment, is designed and implemented. Combining with the application approch of position information of positioning terminal and the diversity feature of current network environment, the authors demonstrated the importance and necessity of realizing the real-time wireless transmission of the position information of monitor terminal in different network environment. Then, the operating principle is explicated in detail, the system framework is presented, and the function of each module of this system is introduced. The experiment confirms that this system can realize the real-time wireless transmission of the position information of monitor terminal in the wireless network WIFI(wireless fidelity) based on the 802.11 technique standard and in the second generation of mobile network environment; meanwhile, it can realize the simpleinformation exchange between the monitor terminal and the control center.

Key words: wireless transmission; WIFI(wireless fidelity); positioning information