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针对物探测量作业中经常会遇到密林、峡谷、窄沟等遮挡严重的不良环境,导致可视卫星数减少、卫星信号不稳定,进而造成定位结果精度下降、作业效率降低等问题。本文提出了使用多系统兼容的高灵敏度BD930板卡作为接收机主板,给出了板卡的控制方法。研制出了一款实时动态定位手簿软件,并且利用网络通信技术搭建了差分数据链,多次在实际物探测量作业环境下对整个测量系统的性能进行了测试。结果表明,该系统在一定程度上提高了RTK适应困难环境的能力,所搭建的差分数据链使测量作业更加便捷、高效,能够满足工程应用的需要。
Geophysical surveying operations are often encountered shelter in dense forests, canyons, narrow ditch and other adverse environment, resulting in reduced number of visible satellites, satellite signals are not stable, resulting in reduced positioning accuracy, operating efficiency and other issues. This paper presents a multi-system compatible high-sensitivity BD930 board as the receiver board, given the control method of the board. A real-time dynamic locating software was developed, and a differential data link was built by using network communication technology. The performance of the whole measuring system was tested several times in the actual geophysical survey environment. The results show that this system improves the ability of RTK to adapt to difficult environment to a certain extent. The differential data link established makes the measurement work more convenient and efficient and can meet the needs of engineering application.