Research On Wireless Data Transmission Technology In Minefield Detection

The minefield detection project is a high-start,difficult-to-use and global frontier subject of application foundation,which has great scientific significance and academic value.The existing methods of mine clearance have some defects such as detection of missing or false signals,slow detection speed,unsafe personnel and heavy detection equipment.The project of the research of minefield remote multi-source detection and recognition methods propose a method for long-range multi-source detection and identification of minefields,and this article comes from a sub-topic in this research.Considering the particularity of the environment of the minefield area,the actual demand for large amount of detection data and long-distance controlled wireless data transmission during minefield detection,it has important application value to research on wireless data transmission technology suitable for minefield detection.UWB(Ultra Wide Band)technology has different advantages from traditional wireless transmission technology,such as its high transmission rate,strong anti-interference ability and low power consumption,etc.Lo Ra(Low Power Range)technology has the advantages of longdistance transmission and low power consumption.This paper designed and implemented a system of a minefield detection data transmission and detection process control,and realized high-speed transmission of detection data and remote control of the minefield detection process.Basing on the research of wireless data transmission methods for minefield detection,and according to the needs of detection data transmission and detection process control for minefield detection,this paper proposed a scheme of the wireless data transmission for minefield detection,and designed the system of Minefield detection data transmission and detection process control.The main research contents are as follows:(1)The UWB-based minefield detection data transmission method and the Lo Ra-based detection process control method are proposed through the analyze of the wireless data transmission requirements of the minefield detection system.Lo Ra communication base station and UWB base station is designed,and they are integrated in the detection control host and detection extension.The UWB main base station and UWB sub-base station use the tree topology as the topology to realize the networking and to complete the transmission of the probe data;The Lo Ra communication main base station and all Lo Ra communication sub-base stations use the Mesh network as a topology to implement a dynamic ad hoc network,so as to realize the control of transmission of the detection data,the synchronous collection of detection data and the synchronous processing of detection data during the entire detection process of detection data transmission control.(2)Combining the detection extension hardware limitation and detection data transmission characteristics,the LZW data compression algorithm is used to reduce the detection data transmission volume and shortened the detection data transmission time.The minefield detection system has the characteristics of precise positioning,and a routing protocol based on geographic location information is selected to realize the particularity of the transmission of minefield detection data.According to the resource allocation problem of Mesh dynamic ad hoc network,the cost-based resource allocation theory system is introduced,and the cost-based resource allocation algorithm is used to achieve the fairness of resource allocation among Lo Ra communication sub-base stations and the maximization of network resource utilization.(3)On the basis of wireless data transmission requirements in minefield detection,this paper designed the hardware circuit of minefield detection data transmission and detection process control,including the main hardware circuit were designed,the main communication interface circuit design,and completed the design of the embedded program of the detection control host and the software design of the host computer.(4)In the environment of minefield detection test field,the system of minefield detection data transmission and detection process control is tested for power consumption,communication capability and networking.The results show that the data transmission and detection process control system for minefield detection can meet requirements of the wireless data transmission in minefield detection,and has good communication stability and high-speed communication performance.