[Spring Festival in progress].
Original title: The meticulous "brain expert".
Guangming ** reporter Wan Majia Wang Wenjing correspondent Yang Qin.
The on-board equipment is equivalent to the nerve center of the EMU, and completing the overhaul of the on-board equipment of an EMU is like performing a craniotomy. We are called 'brain experts', so the details have to be in place and the detection has to be accurate. At about 20 o'clock on February 18, in the Xining EMU Maintenance Institute of China Railway Qinghai-Tibet Group, Zhang Weihong was inspecting and testing the driving equipment of a CRH5G-5211 Harmony EMU while admonishing his apprentice Zhou Huiyan.
During the Spring Festival, Zhang Weihong's Xining Vehicle Equipment Workshop Train Control and Testing Work Area of Xining Electric Depot was obviously busy, and the master and apprentice rotated continuously.
In the cabin of the bullet train, Zhang Weihong and Zhou Huiyan respectively operated and tested the MMI, DMI and other on-board equipment, and these displays were specially responsible for receiving various data information for the driver during the operation of the train. After the indicators were confirmed, Zhang Weihong took out an on-board IC card from the toolkit and began to dump the train operation data. The cramped space was a little stuffy, Zhang Weihong didn't care about wiping the sweat beads from his forehead, turned to Zhou Huiyan and said, "Don't be impatient in this process." ”
Coming out of the carriage, the two of them began to "go to the sky" and "escape to the ground" again. The roof of the bullet train is smooth and curved, and the experienced Zhang Weihong has long been accustomed to it, and on the roof of the car about 6 meters high, he is like walking on the ground, and his agile movements have attracted praise from the workers next to him.
There are 4 shark-like fins on the front and tail of the train, which are the antennas of the train. These antennas are designed to receive GPS positioning and voice data communication information. Zhang Weihong squatted on the roof of the car to check the appearance of the antenna, looking focused.
As the minutes ticked by, the overhaul was still in full swing. After making sure that the roof equipment was good, they turned to the bottom of the vehicle.
Zhou Huiyan squatted next to the vehicle and looked up to check the speed sensor installed at the wheels. After moving to a trench more than 1 meter deep, the working space became unusually cramped, and the surrounding light was not good, so they checked it very carefully.
Each screw should be marked with an anti-loosening mark, because the speed sensor will affect the running speed of the train. Loose screws may cause emergency braking of trains at high speeds, and special care must be taken. Zhang Weihong checked with a flashlight while exchanging experiences with Zhou Huiyan.
At 21:40, all the electrical equipment on the EMU was checked, and in the whole process, they walked at least 3 times from the front to the rear of the car. During the Spring Festival, they had to comprehensively inspect and test five EMUs every night, and they had to walk about 9 kilometers in one night.
*:Light**.