YB/T 4194-2009 1 ScopeThis standard specifies the term and definition,classification,technical requirements,test methods,quality appraisal procedures,packing,marking,transportation,storage,
With the rapid development of the social economy of various countries, under the influence of the economic globalization trend, the trade between other countries is becoming more and more frequent, which makes people ...With the rapid development of the social economy of various countries, under the influence of the economic globalization trend, the trade between other countries is becoming more and more frequent, which makes people communicate more and more close. Then, economic development and cultural exchanges cannot be separated from transportation, which tends to promote consumption to a certain extent and drive economic development. Railway transportation was one of the main transportation as a modern mode of transportation at that time, and its development greatly facilitated people's travel and the transportation of bulk goods. In recent years, the continuous development of the railway transportation industry makes the railway transportation play an increasingly important role in the whole transportation field. However, the huge workload and the long-term braking of the train will cause damage to the railway, in order to ensure people's travel safety and the safe transportation of goods, the maintenance and maintenance of the railway route is particularly important, only the maintenance work, to ensure the safety performance of the railway, prolong its service life.展开更多
Power line inspection is an essential procedure in the power lines maintenance area, especially thinking about service availability and energy efficiency. Aerial inspection of electric power transmission lines is typi...Power line inspection is an essential procedure in the power lines maintenance area, especially thinking about service availability and energy efficiency. Aerial inspection of electric power transmission lines is typically performed using human-piloted helicopters, which is a procedure that is both expensive and prone to accidents taking risks to human beings＇ lives. The work presents a solution based on UAS （unmanned aircraft system） for inspecting power lines. In this context a R ＆ D project of an unmanned aircraft system to be used for performing complete aerial inspection of overhead power lines is being executed by ITA （Instituto Tecnol6gico de Aeron^utica） （Technological Institute of Aeronautics） in Brazil. Special attention is dedicated to the communication system conception in order to comply with Remotely Piloted Aircraft System definition in the context of long endurance operations of the system. It presents a solution based on LTA （lighter than air） platform in order to extend the communication range beyond line of sight.展开更多
文摘YB/T 4194-2009 1 ScopeThis standard specifies the term and definition,classification,technical requirements,test methods,quality appraisal procedures,packing,marking,transportation,storage,
文摘With the rapid development of the social economy of various countries, under the influence of the economic globalization trend, the trade between other countries is becoming more and more frequent, which makes people communicate more and more close. Then, economic development and cultural exchanges cannot be separated from transportation, which tends to promote consumption to a certain extent and drive economic development. Railway transportation was one of the main transportation as a modern mode of transportation at that time, and its development greatly facilitated people's travel and the transportation of bulk goods. In recent years, the continuous development of the railway transportation industry makes the railway transportation play an increasingly important role in the whole transportation field. However, the huge workload and the long-term braking of the train will cause damage to the railway, in order to ensure people's travel safety and the safe transportation of goods, the maintenance and maintenance of the railway route is particularly important, only the maintenance work, to ensure the safety performance of the railway, prolong its service life.
文摘Power line inspection is an essential procedure in the power lines maintenance area, especially thinking about service availability and energy efficiency. Aerial inspection of electric power transmission lines is typically performed using human-piloted helicopters, which is a procedure that is both expensive and prone to accidents taking risks to human beings＇ lives. The work presents a solution based on UAS （unmanned aircraft system） for inspecting power lines. In this context a R ＆ D project of an unmanned aircraft system to be used for performing complete aerial inspection of overhead power lines is being executed by ITA （Instituto Tecnol6gico de Aeron^utica） （Technological Institute of Aeronautics） in Brazil. Special attention is dedicated to the communication system conception in order to comply with Remotely Piloted Aircraft System definition in the context of long endurance operations of the system. It presents a solution based on LTA （lighter than air） platform in order to extend the communication range beyond line of sight.
