Lingkang Zeng

Application of Internet of Things in Smart Grid Power Transmission

Utilizing Internet of Things (IoT) technology in smart grid is an important approach to speed up the informatization of power grid system, and it is beneficial for effective management of the power grid infrastructure. Disaster prevention and reduction of power transmission line is one of the most important application fields of IoT. Advanced sensing and communication technologies of IoT can effectively avoid or reduce the damage of natural disasters to the transmission lines, improve the reliability of power transmission and reduce economic loss. Focused on the characteristic of the construction and development of smart grid, this paper introduced the application of IoT in online monitoring system of power transmission line.

Transmission tower protection system based on Internet of Things in smart grid

The applications of Internet of Things (IoT) technology turn up in smart grid power generation, transmission, transportation, distribution and consumption gradually, and it is beneficial for effective management of the power grid infrastructure. This paper introduced a transmission tower protection system based on IoT technology, which can realize classification, location and early warning of the threats to high-voltage backbone transmission tower, and can achieve full-range protection for high-voltage backbone transmission facilities.

Performance analysis of a new power wireless private network in intelligent distribution networks

With the development of smart grid, the requirements of high speed, low delay, high security and wide coverage have motivated the need to a power wireless private network for the intelligent distribution networks. In this paper, we propose a new electric power wireless communication network. The system is designed based on TD-LTE technology, and rebuilds its physical layer according to the need of the power system. The paper gives a general studies on the major performances of the power wireless private network system, it primarily focuses on coverage and peak transmission speed. By means of a Hata model, we get an estimation of the coverage at urban, suburban and rural. Orthogonal Frequency Division Multiplexing (OFDM) is a key technology of LTE, the paper get the approximate peak transmission speed by analyzing different OFDM configurations of subcarriers and symbols. The performance shows that the new power wireless private network is a very suitable scheme to meet the demand of intelligent distribution networks.

Multihop-Based key management in hierarchical wireless sensor network

The vulnerable environment and open communication channel make it very necessary to protect wireless sensor networks (WSNs). The key management is the most important way to protect the communication in WSNs. In this paper, we design a Multihop-based Key Management (MKM) which can efficiently enhance the security and survivability in the hierarchical WSNs. Different from previous works, we present the key system as well as the cluster formation. The MKM generates and distributes keys based on hop counts, which not only localizes the key things but also has no overhead. The MKM provides the session keys among sensors and the cluster key between the cluster head and its member nodes. The different hops make the different keys. The MKM can protect the network from the compromised nodes by reducing the high probability of the common keys. The security analysis can effectively prevent several attacks.