一种多串口映射TCP端口的核数据采集系统设计

为解决多种数据类型兼容的并行采集困难、接入计算机串口资源匮乏、采集数据传输误码率高等诸多问题，设计并实现了多串口映射TCP端口(MSMTPS)的多种核辐射数据类型连续并行采集系统。采用以太网实现核辐射数据采集系统与计算机的数据交互，系统由STM32F103处理器与W5500以太网芯片构成，具有多个串口同时与以太网口交互的能力。为接收不同辐射数据的串口分配队列缓冲区，使多个串口与同一个TCP端口映射，基于TCP端口与上位机建立连接，实现多类串口与单网络端口双向快速传输。测试使用3个串口，分别以0.5 s,1 s,5 s时间间隔发送，各发送498 bytes,499 bytes,499 bytes数据，连续发送10 min。结果显示系统传输稳定，无误码，符合设计要求。

Design on nuclear radiation data acquisition system with Multi-Serial Mapping TCP ports

A continuous parallel collection system for multiple nuclear radiation data types with Multiple Serial ports Mapped to TCP ports(MSMTPS) is designed and implemented in order to deal with the problems of compatible parallel collection of multiple data types, lack of access serial port resources for the computer, and high bit error rate of collected data transmission. The ethernet is adopted to realize the interaction between nuclear radiation data acquisition system and computer. The system is composed of STM32F103 processor and W5500 ethernet chip, with multiple serial ports capable of interacting with ethernet ports simultaneously. By allocating queue buffers for serial ports that receive different radiation data, mapping multiple serial ports to the same TCP port, and establishing a connection with the host computer based on the TCP port, the fast bidirectional transmission between multiple serial ports and a single network port is realized. In the test, three serial ports are utilized to send 498 bytes, 499 bytes and 499 bytes of data at 0.5 s, 1 s, and 5 s intervals for 10 min. The results show that the system is stable and error-free, which meets the design requirements.