基于CAN总线的船舶智能温度采集系统的设计与实现

Design and Realization of Intelligent Temperature Sampling System for Ship Based on CAN

摘要:

设计基于双冗余CAN现场总线的船舶机舱温度分布式数据采集与监控系统,以STM32F107VCT6处理器为控制核心,采用热电偶信号调理专用芯片LT1025设计智能温度采集模块的方法；实际应用中每种类型的热电偶信号处理机制不同,该设计可以实现单通道可采集处理多种类型热电偶信号；利用Visual C#编程语言完成了机舱温度监控软件的开发,制定了通信协议实现下位机与服务器之间的通信；结果表明,该系统具有多通道、精度高、成本低、测温范围宽及操作简单等优点。

Abstract:

This paper designs distributed temperature data acquisition and monitoring system of ship engine room based on CAN bus. The STM32F107VCT6 Microcontroller serves as the main control core.This paper uses the Thermocouple signal conditioning special chip LT1025. Since each type thermocouple’s signal processing mechanism is different in the practical application, this design can achieve the function that single channel can process various types of thermocouple signal. This paper uses Visual C# to construct the software of the temperature monitoring, develops a communication protocol to implement the communication between lower computer and the server. The experiments show that the acquisition-board has the merits of multi-channel switch,high-accuracy,low cost,wide metrical range of temperature,simple operation, etc.