Core Insights - The introduction of CCTV pipeline inspection robots marks a significant advancement in urban infrastructure maintenance, enhancing efficiency and safety in diagnosing underground pipeline issues [1][3][4] Group 1: Technology and Innovation - The CCTV pipeline inspection robot operates like an "underground periscope," allowing for comprehensive video recording and data collection without disrupting surface activities [3][4] - The robot can accurately identify and record the location and dimensions of pipeline defects, providing reliable data for tailored repair strategies [3][4] Group 2: Project Overview - The drainage network improvement project in Yuhua District has a total investment of approximately 130 million yuan, utilizing an EPC contracting model, and commenced on October 4 [4] - The project includes the renovation of 161 municipal road rainwater and sewage mixed connection points, 163 old municipal roads totaling 109 kilometers, and the rehabilitation of 1,187 drainage inspection wells [4] Group 3: Repair Techniques - The project will prioritize advanced non-excavation repair techniques, such as ultraviolet curing lining repair, for most local defects, while traditional excavation methods may still be necessary for severe structural damage [4] - The ultimate goal of the drainage network upgrade is to enhance public safety and urban operational resilience, particularly in flood prevention and drainage capacity [4]