Design Of Substation Operation And Maintenance Of Site Safety Protection Monitoring Platform

In the power system operation,substation operation and maintenance bears substation operation,maintains management, switches important work operations and incident handling. It is to ensure the implementation of those grid security, stability and economic operation. With the continuous development of the grid and increasing the number of substations, substation operation and maintenance bear pressure increasing of safe.To strengthen the substation operation and maintenance of safety management and accident prevention safety substation, companies make use of advanced information technologies, strong research and practical on-site operation and maintenance of substation security technology, and strive to ensure that the operation and maintenance job site substation control, energy control, in control. The proposed substation operation and maintenance of security monitoring platform is not just a software platform, it is also a system of algorithms and software monitoring location services platform combining. It is a fusion location algorithm for location-based services based on multisensor technology of RF and ultrasound, which devices within the substation site, the operator dynamically precise positioning, compare classical Chan location algorithm with the proposed algorithm in the presence through experiments, the latter algorithm positioning error is less than 15 cm, Chan algorithm positioning error is less than 45 cm in the case of occlusion, and achieved the desired accuracy.Location-based services through the algorithm to get the field devices, real-time location data will be transmitted at the operator’s monitoring platform, then backstage staff that can be observed in real-time trajectory of the workplace of the operator. When the operator is less than the distance from energized equipment safe distances, it will start immediately on the platform linkage alarm. In order to ensure that equipment and personnel status data upload data timely, orderly and the data will not be lost, therefore it is particularly high for real-time and reliability requirements for the monitoring platform. Based on the above considerations between the algorithm and monitoring platform location-based services, we use message-oriented middleware for communication high-performance MySQL database as data persistence layer, and asynchronous concurrent processing platform data Node.js running as a carrier monitoring platform.Additionally, messages between the client and server need to interact in real time. The traditional approach is to use a polling mechanism.in which client in a certain time interval to make the news server access time synchronization. But the existence of such a mechanism is a serious shortcoming, especially in the real-time requirements of high environment, therefore, this thesis uses the latest in HTML5 WebSocket long connection technology, which ensures instant messaging servers and clients.