针对深井冻结监测中测点多、距离长的难题,分析了冻结温度场监测的内容与特点,提出采用一线总线技术构建统一的冻结监测系统的解决方案,即由DS18B20实现众多温度点的监测,而对于其他模拟信号与I/O信号,应用专门的一线器件将其转换为一线总线信号。针对一线总线监测系统的开发,介绍了以数据库为核心的一线总线集中开发环境软件的构建。一线总线监测模块为地层冻结监测系统的关键单元,通过应用高性能单片机、精准电平比较、增强驱动与阻抗匹配等措施,使一线总线网络的监测性能测点达到60个、分布距离超出800 m,满足了当前深井冻结监测的要求。

According to the difficultles of many measuring points and long distance in the monitoring and measuring of the deep mine shaft ground freezing, the pa per analyzed the monitoring and measuring contents and features of the freezing temperature field and provided a solution with a one line bus technology applied to est ablish a general freezing monitoring and measuring system.Thus, a DS18B20 was applied to monitor and measure the multi temperature points and as for the other sim ulation signals and I/O signals, the specific one line bus device was applied to convert the signals to the one line bus signals .According to the development of the one li ne bus monitoring and measuring system, the paper introduced the establishment of the integrated development environment for the one line bus based on the databas e as the key.The monitoring and measuring module of the one line bus was the key element of the ground freezing monitoring and measuring system.With the applicatio n of the high performance MCU, accurate electrical level comparison, enhanced driving and impedance matched, and other measures, the monitoring and measuring pe rformance points of the one line bus network could be reached to 60 points and the layout distance could be over 800 m, which could meet the requirements of the moni toring and measuring in the present deep mine shaft freezing.

天地科技股份有限公司技术创新基金资助项目(TZ-JJ-09-ZM-5)；