1、Key issues on the application of internet of things technology in online monitoring system of power equipment  

    The Internet of things is still in the development stage in China. In order to deepen the integration of the Internet of Things and online monitoring system, the communication interference of wireless network sensors developing the monitoring system of power transmission and transformation equipment is serious, and the incidence of monitoring equipment failure or defect is still high.  The stability of the network information flow of sensor equipment needs to be improved, various scattered sensor nodes are vulnerable to damage, and wireless communication security issues (including illegal access, information leakage, tampering, etc.) require the expansion of communication and interaction modes, and the development of Internet of Things business authentication mechanism and encryption mechanism.  Due to the lack of a unified standard system for Internet of Things application, the performance and standards of monitoring equipment are different, which reduces the monitoring ability of power transmission and transformation equipment based on Internet of Things and hinders the large-scale application of monitoring system.  At present, most of the online monitoring technicians have insufficient grasp of the emerging Internet of Things technology, which is difficult to meet the needs of refined monitoring management.  This paper mainly studied the monitoring the realization of the function of power transmission and transformation equipment path, considering the continuous expansion of power grid, the construction of network information transmission platform is an effective way to improve the level of intelligent power grid, give full play to the advantage of network connectivity, realize the real-time monitoring of running status of power transmission and transformation equipment, lays the foundation for the realization of the remote control.  

2、Power detection internet of things technology

    Iot technology refers to the application of different sensing devices, such as infrared sensor, the geographic location of the positioning system, laser scanner and other equipment, the substation equipment and technology, such as the Internet connected to the Internet the collected data were analyzed, and the application of network information transmission, detection and management of substation equipment effectively.  And Internet technology, there are three main parts of the induction layer, network layer and application layer, induction layer is the application of induction equipment to complete some information collection, information collected by the network layer is to transfer and analysis processing, the application layer is to handle the processing control and instruction of the result, because of the complexity of the substation equipment environment,  Its main parameters are varied, such as current voltage, temperature, vibration, the analysis of oil and gas composition, etc., of course in substation equipment, equipment with different functions, such as strengthening the detection of current and voltage could be used to transformer operation, the oil temperature and oil quality check for oil equipment plays an important role.  

3、Application of power Iot sensor technology in online monitoring of power equipment

    On-line monitoring application of transmission equipment, power iot sensor technology is applied in the electric power equipment on-line monitoring of the key content, the main monitoring content is given priority to with transmission equipment operation condition and operation environment, effectively improved the ice, occurred on transmission line tower tilted, the situation such as wire monsoon vertical arc of perception and early warning capabilities,  It plays an important role in dynamic and full - time monitoring of transmission equipment.  

4、Key issues of the application of power Iot sensor technology in online monitoring of power equipment  

    To solve the security problems in the process of data and information wireless sensing, power system plays a basic guarantee role in the process of national economic and social development. To realize the application of power Internet of Things sensor technology in the online monitoring of power equipment, the primary task is to ensure the security of data and information in the process of wireless sensing in the network environment.  At this stage, however, the online monitoring of data information in the process of the wireless sensor, there is still a node is destroyed, the access, data manipulation, and so on and so forth, the main cause of these problems: one is the communication methods of variety makes the safety protection cover, the second is reliable Internet of authentication and encryption mechanism development is not yet mature.