Abstract

Distributed Multi-sensor Detection System is a wide field distributed wireless detection system, which is composed of Command Center and varieties of Detection Units. The Command Center acquires a lot of real-time information from the area that has been monitored by means of bi-directional communication between it and each unit. Communication mode that has been adopted in this detection system will determine the validity and reliability greatly. So the system should adopt appropriate communication mode and information processing mode to realize the real-time transmission of information in the wide area. According to the particular characteristic of this Multi-sensor Detection System, we go deep into discussing all kinds of communication modes that can be used in the system and also compare their work modules and practicability. Based on the comparison, we offer a more suited communication mode, Code Division Multiple Access (CDMA) mode for this detection system. We also built a multi-sensor test platform based on the communication mode. By means of a mass of experiments and on site testing, we arrive at a conclusion that the higher operational reliability can be gained by choosing this communication mode in this detection system. It is adaptive to work under the condition of complexity.

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