Since the summer games this year, the staff of the on-board equipment workshop of Nanjing electric depot of China Railway Shanghai Bureau Group Co., Ltd. have strengthened the maintenance of train control on-board equipment in view of the high temperature weather and other conditions, and carried out "physical examination" on the motor cars every day to ensure the safe operation of the motor cars. (on August 9, in the Nanjing motor car depot of China Railway Shanghai Bureau Group Co., Ltd., the staff of the motor car on-board equipment workshop of Nanjing electric depot confirmed the number of the motor car to be inspected.) (in the Nanjing motor car depot of China Railway Shanghai Bureau Group Co., Ltd., the staff of the motor car on-board equipment workshop of Nanjing Electric Locomotive Depot inspected the track circuit antenna of the motor car (taken on August 3) (on August 9, in the Nanjing motor car depot of China Railway Shanghai Bureau Group Co., Ltd., the staff of the motor car on-board equipment workshop of Nanjing Electric Locomotive Depot overhauled the speed sensor of the motor car.) (on August 9, in the Nanjing motor car depot of China Railway Shanghai Bureau Group Co., Ltd., the staff of the motor car on-board equipment workshop of Nanjing electric depot inspected the installation status of the antenna under the motor car.) (in the Nanjing motor car depot of China Railway Shanghai Bureau Group Co., Ltd., the staff of the motor car on-board equipment workshop of Nanjing Electric Locomotive Depot overhauled the motor car running record equipment (taken on August 3) (news agency)