中文摘要：

为了拓宽应用领域和提高光源亮度，合肥光源正在进行重大升级改造。本文介绍在合肥光源升级改造过程中，准直控制网的建立及测量方法。使用SA软件的“统一空间测量网络（USMN）”功能进行多仪器的测量数据联合三维网平差，用测量不确定度的概念来描述测点的质量。通过实际测量和数据处理，控制网的实测精度达到0．09mm，优于设计精度0．15mm，证明此次合肥光源升级改造的控制网设计方案是合理可行的。

英文摘要：

Background： In order to open up the application field and improve the source, the Hefei Light Source （HLS） is taken a major upgrade. Purpose： The paper mainly introduces the way of building and measuring of alignment control network during the HLS upgrade. Methods： The global horizontal control network points＇ data are measured by total station. All control network points＇ 3D-measurement data are obtained by laser tracker and elevation data are got by N3 Level. The function of Unified Spatial Metrology Network （USMN） of SA software is used to make a three dimensional adjustment combining data from different devices. The concept of measurement uncertainty is used to describe the measurement quality of network points. In order to check the correctness of the adjustment result, the software of MAA was employed to make three-dimensional adjustment as well as plane adjustment done by SURVEY adding elevation adjustment by NASEW2003. Results： Through the actual measurement and data processing, the accuracy of actual measurement is 0.09 mm, better than the designed accuracy of 0.15 mm. Compared with the results adjustment by different software, the result of SA is demonstrated to be reliable. Conclusion： The result demonstrates that the designed scheme of alignment control network of HLS upgrade is reasonable and feasible.