提出一种基于全球定位系统(GPS)同步时钟信号的野外无人地球物理探测采集分布式系统,使用Cyclone V EP5CEBA4F17C和ARM Exynos 4412等为硬件的节点探测仪器设计方案。该节点设备利用现场可编程门阵列(FPGA)作为主控器,FPGA将接收来自ADS...提出一种基于全球定位系统(GPS)同步时钟信号的野外无人地球物理探测采集分布式系统,使用Cyclone V EP5CEBA4F17C和ARM Exynos 4412等为硬件的节点探测仪器设计方案。该节点设备利用现场可编程门阵列(FPGA)作为主控器,FPGA将接收来自ADS1282采集到的数据与本地GPS芯片采集到的时间戳进行数据合并,ARM嵌入式系统对合并后数据进行实时分析与存储,在PC端对各节点设备数据进行汇总并根据时间戳对齐,最终得到同步后的分布式地球物理3D图像数据。用该设备进行测试,结果表明该测试系统初步实现了远距离、大范围地球物理同步节点的数据采集。展开更多
We propose a system for remote measurement of low-energy radiation, which is implemented using an ARM board and a Zig Bee module. The ARM STM32 F103 board employs a horizontal and vertical moving CMOS camera for front...We propose a system for remote measurement of low-energy radiation, which is implemented using an ARM board and a Zig Bee module. The ARM STM32 F103 board employs a horizontal and vertical moving CMOS camera for front-end data acquisition. The camera can detect radiation over different coordinates given by latitude and longitude in a determined area. For image processing, we used the subtraction–summation algorithm based on gradient multiplication and edge detection. Compared to algorithms such as the max grayscale value, subtraction–summation, and whole summation, the improved subtraction–summation algorithm filters noise and removes the background grayscale value of the whole image to attain higher accuracy, stronger anti-interference ability, and better consistency to determine the radiation dose. We dedicated one port of the transmission module to send data through the STM32 F103 board, whereas another port is connected to the Zig Bee module for data reception. By employing this architecture, we achieved low power consumption and fast response in the remote data transmission.Overall, the proposed system performs the remote measurement of low-energy radiation with stability andreliability, which is required for critical scenarios such as the remote detection of nuclear radiation.展开更多
文摘提出一种基于全球定位系统(GPS)同步时钟信号的野外无人地球物理探测采集分布式系统,使用Cyclone V EP5CEBA4F17C和ARM Exynos 4412等为硬件的节点探测仪器设计方案。该节点设备利用现场可编程门阵列(FPGA)作为主控器,FPGA将接收来自ADS1282采集到的数据与本地GPS芯片采集到的时间戳进行数据合并,ARM嵌入式系统对合并后数据进行实时分析与存储,在PC端对各节点设备数据进行汇总并根据时间戳对齐,最终得到同步后的分布式地球物理3D图像数据。用该设备进行测试,结果表明该测试系统初步实现了远距离、大范围地球物理同步节点的数据采集。
基金supported by the Plan for Scientific Innovation Talent of Henan Province(No.154100510007)the Program for Creative Export Mental Project of National Undergraduate Students(No.CEPNU 5101022000004)
文摘We propose a system for remote measurement of low-energy radiation, which is implemented using an ARM board and a Zig Bee module. The ARM STM32 F103 board employs a horizontal and vertical moving CMOS camera for front-end data acquisition. The camera can detect radiation over different coordinates given by latitude and longitude in a determined area. For image processing, we used the subtraction–summation algorithm based on gradient multiplication and edge detection. Compared to algorithms such as the max grayscale value, subtraction–summation, and whole summation, the improved subtraction–summation algorithm filters noise and removes the background grayscale value of the whole image to attain higher accuracy, stronger anti-interference ability, and better consistency to determine the radiation dose. We dedicated one port of the transmission module to send data through the STM32 F103 board, whereas another port is connected to the Zig Bee module for data reception. By employing this architecture, we achieved low power consumption and fast response in the remote data transmission.Overall, the proposed system performs the remote measurement of low-energy radiation with stability andreliability, which is required for critical scenarios such as the remote detection of nuclear radiation.
