Aiming at the problems of traditional centralized cloud computing which occupies large computing resources and creates high latency,this paper proposes a fault detection scheme for insulator self-explosion based on ed...Aiming at the problems of traditional centralized cloud computing which occupies large computing resources and creates high latency,this paper proposes a fault detection scheme for insulator self-explosion based on edge computing and DL(deep learning).In order to solve the high amount of computation brought by the deep neural network and meet the limited computing resources at the edge,a lightweight SSD(Single Shot MultiBox Detector)target recognition network is designed at the edge,which adopts the MobileNets network to replace VGG16 network in the original model to reduce redundant computing.In the cloud,three detection algorithms(Faster-RCNN,Retinanet,YOLOv3)with obvious differences in detection performance are selected to obtain the coordinates and confidence of the insulator self-explosion area,and then the self-explosion fault detection of the overhead transmission line is realized by a novel multimodel fusion algorithm.The experimental results show that the proposed scheme can effectively reduce the amount of uploaded data,and the average recognition accuracy of the cloud is 95.75%.In addition,it only increases the power consumption of edge devices by about 25.6W/h in their working state.Compared with the existing online monitoring technology of insulator selfexplosion at home and abroad,the proposed scheme has the advantages of low transmission delay,low communication cost and high diagnostic accuracy,which provides a new idea for online monitoring research of power internet of things equipment.展开更多
The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculia...The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculiar seperated scenes formed after the explosion, limit time of preverving and inspecting the scene, greatly comprehensive profession of inspection of the scene, etc.. Studies on the ways to know the main problem of inspection, follow basic principles, handle beforehead, collect remaining substances and exemin casualties, can direct the inspection in practice and is very important to the development of the theory of railway police.展开更多
First contiol in an area out of jurisdiction is the emergent management adopted by the police organ, who is at the place where the explosion occurs, according to the situation of the scene when the explosion occurs al...First contiol in an area out of jurisdiction is the emergent management adopted by the police organ, who is at the place where the explosion occurs, according to the situation of the scene when the explosion occurs along the railway line or in a passenger train. It is decided by various subjective and objective terms that first control exists in practice and is proposed as a theory of fast reaction and emergent management handling railway explosive cases in the earlier stage. The main factors include that explosive cases along the railway line and i a passenger train do great harm to the society, and that according to current rules of case jurisdiction the railway ploice organ who has the jurisdiction of putting the case on file, locates too far away from the scene of explosion to effectively handle it quickly on its own. Therefore, the local police organ and railway ploice organ at the place of explosion are required to help first control at the scence.展开更多
基金supported by the Natural Science Foundation of China(52167008)Outstanding Youth Fund Project of Jiangxi Natural Science Foundation(20202ACBL214021)+1 种基金Key Research and Development Plan of Jiangxi Province(20202BBGL73098)Science and Technology Project of Education Department of Jiangxi Province(GJJ210650)。
文摘Aiming at the problems of traditional centralized cloud computing which occupies large computing resources and creates high latency,this paper proposes a fault detection scheme for insulator self-explosion based on edge computing and DL(deep learning).In order to solve the high amount of computation brought by the deep neural network and meet the limited computing resources at the edge,a lightweight SSD(Single Shot MultiBox Detector)target recognition network is designed at the edge,which adopts the MobileNets network to replace VGG16 network in the original model to reduce redundant computing.In the cloud,three detection algorithms(Faster-RCNN,Retinanet,YOLOv3)with obvious differences in detection performance are selected to obtain the coordinates and confidence of the insulator self-explosion area,and then the self-explosion fault detection of the overhead transmission line is realized by a novel multimodel fusion algorithm.The experimental results show that the proposed scheme can effectively reduce the amount of uploaded data,and the average recognition accuracy of the cloud is 95.75%.In addition,it only increases the power consumption of edge devices by about 25.6W/h in their working state.Compared with the existing online monitoring technology of insulator selfexplosion at home and abroad,the proposed scheme has the advantages of low transmission delay,low communication cost and high diagnostic accuracy,which provides a new idea for online monitoring research of power internet of things equipment.
文摘The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculiar seperated scenes formed after the explosion, limit time of preverving and inspecting the scene, greatly comprehensive profession of inspection of the scene, etc.. Studies on the ways to know the main problem of inspection, follow basic principles, handle beforehead, collect remaining substances and exemin casualties, can direct the inspection in practice and is very important to the development of the theory of railway police.
文摘First contiol in an area out of jurisdiction is the emergent management adopted by the police organ, who is at the place where the explosion occurs, according to the situation of the scene when the explosion occurs along the railway line or in a passenger train. It is decided by various subjective and objective terms that first control exists in practice and is proposed as a theory of fast reaction and emergent management handling railway explosive cases in the earlier stage. The main factors include that explosive cases along the railway line and i a passenger train do great harm to the society, and that according to current rules of case jurisdiction the railway ploice organ who has the jurisdiction of putting the case on file, locates too far away from the scene of explosion to effectively handle it quickly on its own. Therefore, the local police organ and railway ploice organ at the place of explosion are required to help first control at the scence.
