提出了一种基于国产MT32L083的RTK高精度定位终端。该终端不同于网络RTK单终端的设计思路,本设计包括基准站和移动站两部分,具有相同的电路设计,由MT32L083主控电路、高精度定位模块、通信模块和OLED显示模块组成。软件部分基于Keil平台按照模块化设计理念开发,分别实现移动站基准站配置、差分修正数据获取、定位结果获取与解析以及OLED显示等功能。在北斗创新实验室中的实验结果表明,在连续时间内RTK差分定位精度达到毫米级,终端水平定位精度为3~5 mm,天线定位精度为4~10 mm。该终端的设计与开发推动了RTK技术的普及和国产ARM在工程领域的应用。

In the paper,a high precision RTK positioning terminal based on domestic MT32L083 is proposed.The terminal is different from network RTK single terminal design ideas,the design includes reference station and mobile station two parts,with the same circuit design,by MT32L083 master circuit,high-precision positioning module,communication module and OLED display module.The software part is developed based on the Keil platform in accordance with the modular design concept,and respectively realizes the functions of mobile station reference station configuration,differential correction data acquisition,positioning results acquisition and analysis,and OLED display.The experimental results in Beidou Innovation Laboratory show that the RTK differential positioning accuracy reaches mm level in continuous time,the terminal horizontal positioning accuracy is 3~5 mm,and the celestial positioning accuracy is 4~10 mm.The design and development of the terminal has promoted the popularization of RTK technology and the application of domestic ARM in the engineering field.