The monitoring and controlling aspect of dynamic evolution process of mining - induced fractures in the study about soil radon α energy spectrum anomaly regularity of the process of rock collapse, need a reliable and effective, easy to operate method and means. To work out the issue this article puts forward a measuring radon multi - channel acquisition system based on the USB bus and CAN bus, which transmits data through the CAN bus and achieves a multi - node communication and improves communication quality; in the meantime, u-sing USB interface achieve the link of CAN bus network and the computer and data collection solutions.%岩层塌陷过程壤氡α能谱异常规律研究中,在覆岩采动裂隙动态演变过程的监测监控方面,需要一种可靠、有效、易操作的方法和手段.就此问题提出了基于USB总线和CAN总线的测氡仪多道采集系统,通过CAN总线进行数据传输,实现了多节点通讯,提高了通信质量;同时,使用USB接口实现CAN总线网络与计算机连接和数据采集的解决方案.
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