| 中低速磁浮列车悬浮诊断系统数字信号处理器在线升级方法 |
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| 引用本文： | 陈红霞,张晨昊,靖永志.中低速磁浮列车悬浮诊断系统数字信号处理器在线升级方法[J].城市轨道交通研究,2020(6):123-125,131. |
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| 作者姓名： | 陈红霞 张晨昊 靖永志 |
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| 作者单位： | 南京铁道职业技术学院;西南交通大学电气工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(51577160)。 |
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| 摘 要： | 针对中低速磁浮列车悬浮诊断系统DSP(数字信号处理器)程序升级操作繁琐的问题,设计了一种基于既有诊断网络CAN(控制器局域网)总线的DSP程序在线升级方案。在DSP程序升级时,升级终端将升级指令和升级程序的文件发送到CAN总线。DSP识别到升级指令后转至升级工作模式,接收新程序文件并将其烧写到闪存中,从而实现在线升级。测试结果表明,该方法能安全、高效地对单个或批量的DSP完成程序在线升级。
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| 关 键 词： | 中低速磁浮列车 悬浮诊断系统 数字信号处理器 在线升级 |
Online Updating Method for the DSP in Levitation Diagnosis System of Medium and Low Speed Maglev Train |
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| CHEN Hongxia,ZHANG Chenhao,JING Yongzhi.Online Updating Method for the DSP in Levitation Diagnosis System of Medium and Low Speed Maglev Train[J].Urban Mass Transit,2020(6):123-125,131. |
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| Authors: | CHEN Hongxia ZHANG Chenhao JING Yongzhi |
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| Institution: | (Nanjing Institute of Railway Technology,210031,Nanjing,China;不详) |
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| Abstract: | Aiming at the tedious operation of digital signal process(DSP)program upgrading in medium and low speed Maglev train levitation diagnosis system,an online upgrading method for DSP program based on the existing diagnostic network controller area network(CAN)bus is designed.In the upgrading process of DSP program,the upgrade terminal sends the upgrading instruction and upgrading program file to the CAN bus.After instruction recognition,DSP will transfer to upgrade mode,receive the new file and download it to the flash memory for online upgrade.The experimental results show that this method can safely and effectively upgrade the program online for single or a batch of DSP. |
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| Keywords: | medium and low speed maglev train levitation diagnostic system DSP online upgrade |
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