[Spring Festival travel rush in 2018] Wang Xiaoxia, the ＂brain doctor＂ of the motor train： Safety comes from analysis, judgment, answer and guidance.
The bullet train that ran outside for 48 hours "went home" for maintenance. (Reporter wanglili)
Cctv news(Reporter wanglili) After 6: 30 pm every day, after 48 hours of running outside, the motor trains will return to Taiyuan EMU for routine maintenance and overhaul.
There are many departments in the EMU, such as electric workshop, communication workshop, dispatching and monitoring center, locomotive room, passenger room, cleaning room, etc. At this time, the work of Wang Xiaoxia, secretary of the Party branch of Taiyuan EMU on-board equipment workshop of Taiyuan Electric Section of China Railway Taiyuan Bureau Group Co., Ltd., who is responsible for the core equipment "train overspeed protection device" (hereinafter referred to as ATP), began.
On February 1st, the annual China Spring Festival travel rush was launched again. In the world’s largest population migration, which is expected to send 2.98 billion passengers, the number of passengers sent by railway is expected to reach 390 million.
As the first generation of emu repairman in China who grew up with emus, Wang Xiaoxia has been engaged in emu maintenance for eight years, and more than 4,000 emus have been overhauled by her hand.
"Taiyuan Railway Company has jurisdiction over five high-speed railway lines and 48 sets of motor trains. For high-speed motor trains with a top speed of more than 300 kilometers per hour, meticulous and rigorous maintenance work is the key to ensuring the safe operation of high-speed motor trains." Wang Xiaoxia said.
Maintenance of railway signalman changing to high-end bullet train
Wang Xiaoxia was born in a railway worker’s family. Living beside the railway since childhood, she has a natural affection for railway work. In 2007, after graduating from graduate school, she was assigned to taiyuan railway administration and became a railway signalman.
In 2009, Shitai Passenger Dedicated Line was opened, and the first batch of EMUs imported from taiyuan railway administration were put into operation. At that time, as one of the few female graduate students who overhauled high-speed rail equipment in the whole railway, Wang Xiaoxia changed from an ordinary signalman to a post to overhaul ATP of high-end bullet trains.
If the wheels of the emu are compared to the limbs and the engine to the heart, the on-board equipment is the brain, especially the ATP, the core component of the on-board equipment, is the central nervous system of the emu and can be called the black box of the emu.
In the interview, Kang Chunhui, deputy secretary of the Party Committee of Taifei Electric Power Department, said that ATP is responsible for receiving and processing a large amount of digital information, and the good operation and reliability of the equipment is equivalent to giving the EMU a "clairvoyance and clairvoyance". If there is a problem with ATP, the EMU will not be able to start running. Wang Xiaoxia’s workshop is responsible for the daily maintenance of ATP equipment of 48 operating EMUs, such as Daxi High-speed Railway, Shitaike Special Railway and Beijing-Guangzhou High-speed Railway.
"Brain Doctor" in the EMU
Wang Xiaoxia is testing high-speed trains. (Reporter wanglili)
At 18: 40 pm on February 1st, Taiyuan EMU Operation Station, a modern maintenance depot that can accommodate 12 high-speed trains at the same time, was brightly lit.
Driving during the day and overhauling at night are the processes of high-speed trains. The overhaul time is from 6 pm the day before to 7 am the next day, with the peak from 11 pm to 3 am the next day.
It is understood that the maintenance of a motor train needs the unified command of the dispatcher and can be completed within 2 hours under the coordinated operation of various positions.
"Nothing can go wrong in any link, just as nervous as fighting." Wang Xiaoxia’s work area is responsible for the ATP system maintenance of 24 motor trains. On the train, a set of cabinets called "system host" is the focus of their inspection. "It is the core equipment to ensure the safe operation of EMU. In case of abnormal situation, it will automatically alarm the driver. If the driver fails to follow the prompts, it will automatically control the train immediately to ensure the safe and stable stop of the train."
After the inspection on the train, Wang Xiaoxia has to drill into the inspection ditch to check the induction device at the bottom of the train. If you find something abnormal, deal with it urgently. If you can’t handle it, you can only detain the car the next day.
There are 40 employees in Wang Xiaoxia’s work area, all of whom are young guys and girls, who stay up all day and go out at night. Everyone jokingly said that they are "brain doctors" living "American time".
Now it seems that the work that is easy to master is far from so simple at the beginning. As a new thing that I just came into contact with in 2009, the equipment and testing equipment used on the train are all imported, and there are only several foreign languages that I need to understand. As a graduate student, Wang Xiaoxia is duty-bound to take on the responsibility of overcoming technical difficulties.
In the interaction with training teachers, manufacturers, motor train drivers and mechanics, Wang Xiaoxia gained more rich experience and practice. She said that "ensuring the safety of high-speed rail and passengers is foolproof" is not an abstract concept, but a concrete analysis, judgment, answer and guidance of all data.
"There are four types of ATP in the EMU attached to Taiyuan Bureau of High-speed Train, and the different types are very different. There are as many as 20 kinds of analysis and monitoring software needed for daily maintenance." Wang Xiaoxia said that their work is like running after the frontier of science and technology, and they dare not be sloppy and lax.
Innovation Studio specializes in treating "intractable diseases" of motor trains.
Wang Xiaoxia made a simulation in front of his own simulation test system. (Reporter wanglili)
Some time ago, there was a problem with the ATP system setting of a motor train about to leave the warehouse. According to the driver’s description, Wang Xiaoxia decisively asked the driver to manually modify the ATP system setting parameters. In less than one minute, the system settings returned to normal, the danger was eliminated, and the EMU was out of the library according to the established time.
Shanxi’s dry climate is prone to static electricity, which makes ATP equipment accessories and other precision equipment prone to problems or damage.
"At that time, there was no regular testing equipment for these spare parts in the whole road. Once the ATP failure required replacement of spare parts, I didn’t know whether the replaced spare parts were qualified." Kang Chunhui said that in order to solve this problem, Wang Xiaoxia independently developed the indoor simulation test system for on-board equipment of EMU, which filled the blank of indoor simulation test system for on-board equipment without train control.
Wang Xiaoxia’s two inventions not only solved the problem of periodic power-on test for spare parts of EMU, but also increased the training opportunities for employees to solve "intractable diseases" in practical operation. What is more impressive is that the two systems can generate direct economic benefits of about 10 million yuan per year.
With the arrival of Spring Festival travel rush, Wang Xiaoxia’s work became busier. During the day, she focused on management and business skills, and at night, she followed her classes to solve various problems at any time and place. In the interview, she said: "For the high-speed train, even a screw is a big deal, especially the ATP is related to the safety of the EMU. What they have to do is to ensure the safety of the train and let every passenger go home safely. "