1 Fatigue driving problems caused by sleep factors of night pilots.

Sleep is a complex physiological activity state for human body, and it also plays a very important role in human life and health. Lack of sleep can easily lead to drowsiness, which can easily lead to the decline of various physiological functions of the human body, as well as pilots who perform night flights.

The human body needs enough sleep, and people who have enough sleep are always in the slow-wave stage of sleep. At this stage, the human pituitary gland will secrete a large number of gonadotropins, including growth hormone that can promote anabolism. The chemical reaction of growth hormone can quickly repair the damaged tissues in human body, which is of great help to the recovery of fatigue. However, most pilots in the night flight stage are in a state of fatigue when performing night flight tasks, which makes the physiological function of pilots not reach the best state. When flying at night, the flight task is as arduous as flying during the day, and a series of emergencies are prone to occur. In order to achieve safe flight, pilots should avoid a series of negative emotions such as tension and anxiety caused by lack of sleep. Therefore, pilots who perform night flight tasks should maintain a stable physical and mental state before going to bed and adjust their sleep in a relaxed state. In order to achieve this goal, pilots can adjust their state before going to bed through psychological methods or physiological methods combined with physiological psychology, so that pilots can maintain a good mental state before performing night flight tasks, both physically and psychologically, and maintain a safe and stable state when performing flight tasks.

In order to keep the night crew in a good mental state at work, it is also very important to improve their sleeping environment. When improving the sleeping environment of the night flight crew, we should pay attention to maintaining and adjusting the temperature, humidity and light in the sleeping bedroom, so that the sleeping temperature of the night flight crew is kept between 20 degrees Celsius and 23 degrees Celsius, and the humidity is kept between 50% and 70%. The layout and decoration of bedroom sleeping environment is the key. Only in this environment can the night flight crew have good sleep quality under high-intensity workload. If the pilot sleeps in a strange environment, the civil aviation company should allow the pilot to carry some common items at home, which will make the pilot more relaxed in the company dormitory and help improve the pilot's sleep.

2. Measures to reduce the adverse effects of physiological factors on night flight personnel.

In order to effectively improve the adverse effect of the bad physical condition of night flight crew on flight safety, this problem should be effectively managed in the daily management and training process, that is, the responsibility of reducing the fatigue risk of night flight crew is to manage the physical condition and mental state of night flight crew. Fatigue risk management can take the following measures:

First of all, the division of labor within civil aviation should play a certain role in fatigue risk management, scientifically and reasonably arrange the work tasks of night flight personnel, and try to avoid the night flight personnel being in a passive state when performing flight tasks. At the same time, civil aviation organizers should also conduct certain risk assessment, risk control and residual risk assessment on night flight personnel's work tasks and flight tasks. Moreover, the managers of civil aviation companies should undertake the task of fatigue risk identification and management, and arrange the rest time of pilots reasonably under the guidance of law, especially pilots who need to perform night flights. The manager of the fatigue risk organization should ensure that the night flight personnel can have enough time to rest and recover their energy, so that each night flight personnel can maintain a normal sleep state and maintain the time difference of at least 1.5 hours every day for adjustment.

Secondly, pilots who perform night flight tasks should shoulder certain responsibilities when performing fatigue risk management, and give full play to the role of personal responsibility in fatigue risk management. As a pilot who performs night flight tasks, his physical condition and fatigue state should be the clearest. Therefore, when night pilots feel unwell, they should report to their superiors at the first time. You can't keep working when you are tired. Once the night flight crew is overloaded, the pilot's physical recovery efficiency will also decrease and he needs more time to rest. After that, various physical skills of pilots will also appear, and the state of physical adjustment will gradually slow down. In severe cases, pilots who perform night missions will be seriously injured under high-intensity working conditions. In order to avoid this situation, civil aviation companies should pay attention to the publicity and education of fatigue work knowledge in personnel management, so that pilots flying at night can correctly understand fatigue work, deeply understand the influence of their own physiological factors on flight safety, and make good adjustments to their physical and mental states.

Finally, civil aviation companies should choose the correct risk identification method and adopt the correct fatigue risk identification method when managing flight personnel, correctly identify the fatigue risk factors that are beneficial to aircraft flight safety, and find out various factors that lead to fatigue risk. Civil aviation companies should comprehensively consider the influence of various factors on human physiological state when arranging flight tasks, such as considering the improvement of human fatigue risk state due to seasonal changes. Once the risk factors are correctly identified, civil aviation companies should adopt the correct methods to evaluate the risk sources. In risk assessment, they can use the method of safety risk matrix, which can easily operate risk factors and establish a clear risk assessment system. With the help of this risk assessment method, civil aviation company managers can clearly see the relationship between fatigue risk and aircraft flight safety. With the help of this fatigue risk assessment result, the arrangement of night flight tasks can be correctly handled, so that the personnel performing night flight tasks are always in a good mental state and the safety of aircraft flying at night can be guaranteed.

3 Conclusion

In recent years, the flight safety of civil aviation aircraft has been the focus of public attention, especially the aircraft flying at night is greatly threatened. How to effectively manage the safety of night flight is a problem that civil aviation enterprises should focus on. The biggest security threat in this process is the mental state of the pilot, and human physiological factors have a great influence on the mental state of the pilot. This paper discusses the physiological factors and fatigue driving status of pilots who perform night flights, and puts forward some suggestions to improve fatigue driving of night pilots. It also puts forward how civil aviation companies manage the fatigue risk of night flight tasks from the perspectives of individuals, internal companies, risk identification and management methods, so that pilots can maintain a good mental state while performing night flight tasks and ensure the flight safety of aircraft.

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