3:00 pm on March 19, 2021，By Graduate School of Shandong University、Sponsored by the Postgraduate Affairs Department of the Party Committee，The 14th (total 1003rd) "Jixiafeng" postgraduate academic forum hosted by the School of Electrical Engineering was held in the conference room on the fifth floor of the Electric Power Building on Qianfoshan Campus。The chief engineer of Shandong Xintong Electronics Co., Ltd. was invited to this forum、Master's Tutor of School of Electrical and Electronic Engineering, Shandong University of Technology、Expert from China Electricity Council National Power Transmission and Distribution Technology Collaboration Network、Member of the Standardization Management Committee of Shandong Electronics Society——Dr. Cai Fudong，The theme of the lecture is "AI Technology in Intelligent Operation and Maintenance of Transmission Network"。This forum is hosted by Professor Wang Xiaolong。

Report Begins，General Manager Li Li of Shandong Xintong Electronics Co., Ltd. first gave a corporate presentation。First of all, a brief introduction to Xintong Company，Including qualifications and honors obtained by the company、Company development history、Including Chairman Li Quanyong、General Manager Li Li、The core team including Chief Engineer Cai Fudong, etc.。Other than that，General Manager Li Li also expressed her appreciation for the company’s R&D capabilities、Core Technology、Target market、Introduction to corporate culture and some products，Let students have a general understanding of ICT Corporation。

Next，Dr. Cai Fudong, Chief Engineer of Shandong Xintong Electronics Co., Ltd., gave an academic report。The report is divided into overhead transmission line operation and maintenance、Deep learning and target detection、Image detection technology application、Four parts of sound detection technology application。Dr. Cai Fudong first talked about overhead transmission lines，There are many overhead transmission lines in China、Length、Wide coverage、Complex environment、Difficulties in power supply and communication，There are still lightning strikes、External force damage、Bird damage、Ice damage、Wind damage and other hidden dangers in passageways，Therefore, line maintenance has become the main problem。Dr. Cai then introduced some inspection methods and smart inspection modes for transmission lines，Introducing the evolution from traditional image algorithms to deep learning target detection technology，Feature extraction by traversing the image，Then compare the features，Result passing accuracy、Accuracy、Recall、Speed、Complexity and other evaluation indicators to measure。Analysis of deep learning in face recognition、Vehicle detection、Pedestrian Count、Automatic driving、Applications in security systems and other fields，In the detection of hidden dangers in power transmission operation and maintenance，Through big data accumulation、Model training、Test、Processes such as deploying applications，Realized key technology for target detection，To control false negatives，The purpose of reducing false alarms。Combined with laser point cloud fusion application to realize environmental hazards、Tree and Bamboo Growth、Line sag、Icing、Function to detect hidden dangers such as dancing。Finally, Dr. Cai explained the application of sound detection technology，Through sound detection and intelligent recognition、Multi-source simultaneous sound identification、Sound source positioning and other technologies enable detection of line hazards。

In the Q&A session，Students have questions about the accuracy of the standard detection algorithm model、Ask Dr. Cai about the method of voice recognition signal separation，Dr. Cai answered the students’ questions one by one。Professor Wang Xiaolong also consulted on the technical bottlenecks encountered in current in-depth research，Dr. Cai also put forward his own opinions and ideas。Other than that，Dr. Cai also shared his growth experience since college，And hope that students can cherish their time at Shandong University，Work hard，Become a better person。This issueThe "Jixiafeng" postgraduate academic forum concluded successfully with warm applause from teachers and students。

Introduction to the speaker

Cai Fudong，Chief Engineer of Shandong Xintong Electronics Co., Ltd.、Master's Tutor of School of Electrical and Electronic Engineering, Shandong University of Technology、Expert from China Electricity Council National Power Transmission and Distribution Technology Collaboration Network、Member of the Standardization Management Committee of Shandong Electronics Society。Has hosted and participated in the National Torch Program、Innovation Fund of the Ministry of Science and Technology、Shandong Province Major Science and Technology Project、Shandong Peninsula Independent Innovation Special Project and many other national-level projects、Provincial Science and Technology Plan Project，Research results are at the leading international level2 items，3 items ranking at the international advanced level，Leading the country in 6 categories，All of them have been successfully industrialized。Selected into the first batch of Zibo City Talent Plan in 2015，Selected into the seventh batch of young and middle-aged experts with outstanding contributions in Zibo City in 2017，Selected into Shandong Province Taishan Industrial Leading Talent Project in 2018，Selected as one of the Blue Huizhi Double Hundred Talents in Shandong Peninsula National Independent Innovation Demonstration Zone in 2019。