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通过在线监测轴承部位的温度异常,用声光报警的方式提醒司机采取必要的措施。介绍机车轴承温度监测报警装置及其所用数字温度传感器DS1820(DS18B20)的工作原理,给出了装置硬件、软件设计框图以及增强装置抗干扰性所采取的具体措施。装置通过了电磁兼容试验验证,并在全路推广使用。现场运用过程中通过不断修改软件,装置的功能更加趋于完善。
Through the online monitoring of bearing temperature anomalies, with sound and light alarm way to remind the driver to take the necessary measures. This paper introduces the working principle of locomotive bearing temperature monitor and alarm device and digital temperature sensor DS1820 (DS18B20) used in it, and presents the concrete measures taken by the device hardware and software design block diagram and the anti-interference of the device. Device passed the EMC test verification, and promote the use of the whole road. During the process of field application, the function of the device tends to be more perfect by constantly modifying the software.