The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In recent years, EEG brainwave-reading device is used more and more in various academic fields and real life. Analyzing brainwave from drivers, we divide the brainwave data into light fatigue, medium fatigue and severe fatigue. Once the driver's Low-α 0.5, or attention and meditation less than 40 degrees, then the system is determined that the driver is lethargic or inattention. The system...
Security constrained scheduling has been widely implemented in various power system operations and electricity markets. The practice of securing post-contingency flows preventively to long-term ratings has resulted in transmission network under-utilization. This paper presents a security constrained scheduling process that has been implemented in the National Grid Electricity Balancing System. The...
Lightning parameters are the basic requirements for lightning protection design, and identifying lightning stroke current waveforms in detail is essential for rational lightning protection design. This paper analyzed four lightning current waveforms observed by the monitoring system which was built by Wuhan University. There are 43 observation equipment installed, distributed on 110kV, 220 kV, 500...
The first step to deal with the significant issue of air pollution in China and elsewhere in the world is to monitor it. While more physical monitoring stations are built, current coverage is limited to large cities with most other places undermonitored. In this paper we propose a complementary approach to monitor Air Quality Index (AQI): using machine learning models to estimate AQI from social media...
The state of wheel tread is related to the safety of train operation, detecting the train wheel tread abrasion conditions is great significant for ensuring the safe operation of trains. This thesis researched the detection method of wheel tread flat of domestic and abroad, and researched a method based on flat wheel and rail impact, the data has been wave filtered and unified standard. Finally, the...
This paper presents a system of remote, real-time and on-line monitoring method of the power equipment's infrared/visible image. Based on this system and infrared theory, a corresponding infrared radiation (IR) temperature measurement is proposed. The modified method to raise the measurement precision has been put forward, including the revision of affects of emissivity, ambient temperature and atmospheric...
In this paper, we proposed a novel method that contains the advantages of two kinds of RSSI-based localization methods, the RSSI Triangulation and the RSSI Fingerprinting methods, to improve some disadvantages of traditional RSSI-based localization methods. The advantage of the former is that we could determine the possible region of the wireless device without collecting a large amount of training...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.