Smart grid is the latest trend of development and reform in today’s world, and it is also a major technological innovation and development trend in the 21st century. Internet of Things technology is a new information processing and acquisition method, and it has been widely used in intelligent transportation, environmental monitoring and other fields. Internet of Things is an important technical mean to promote the development of smart grid. Using Internet of Things technology can effectively integrate the infrastructure resources in communications and electrical power system, increase the level of power system information, and improve the utilization efficiency of infrastructures in the existing power system. In this paper, the concept of smart grid and Internet of Things are briefed, thus the urgency of its applications in smart grid are pointed out. Meanwhile, a research and design in the construction of smart grid which is based on Internet of things are made, and the design and implementation in typical application links, including wind power prediction, condition monitoring of overhead transmission lines, power monitoring, smart home and asset management are elaborated emphatically. Finally, the problems in applications and future research direction are also analyzed. DOI : http://dx.doi.org/10.11591/telkomnika.v12i2.4178

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Internet of Things Technology and its Applications in Smart Grid

Internet of things has been widely applied to industrial control, smart city and environmental protection, in these application scenarios, sensing node needs to make real-time response to the feedback control of the application layer. Therefore, it is necessary to monitor whether or not awareness nodes are trusted in real time, but the existing mechanisms for trusted certification lack the real-time measurement and tracking of the sensing node. To solve the above problems, this paper proposes a dynamic metric based authentication mechanism for sensing nodes of Internet of things. Firstly, the dynamic trustworthiness measure of the sensing nodes is carried out by introducing the computational function such as the trust function, the trustworthiness risk assessment function, the feedback control function and the active function of the sensing node. The dynamic trustworthiness measure of sensing nodes from multiple dimensions can effectively describe the change of trusted value of sensing nodes. Then, on the basis of this, a trusted attestation based on node trusted measure is realized by using the revocable group signature mechanism of local verifier. The mechanism has anonymity, unforgeability and traceability, which is proved the security in the standard model. Simulation experiments show that the proposed trusted attestation mechanism is flexible, practical and efficient and has better attack resistance. It can effectively guarantee the reliable data transmission of nodes and realize the dynamic tracking of node reliability, which has a lower impact on system performance.

A trusted attestation mechanism for the sensing nodes of Internet of Things based on dynamic trusted measurement

The paper design mobile information collection system based on Internet of Things, implemented access gateway by smart mobile devices through a variety of ways, such as Wi-Fi and access the underlying perceptual information based on ZigBee wireless sensor networks On the one hand, For information sensitivity of the sensor network, we design the mobile terminal through the gateway access authentication protocol, and effective solute the authentication and information between mobile devices and gateways, gateway and sensor network nodes obtain permission problem; on the other hand, according to the practical application of mobile information collection characteristics, the paper proposed information collection strategy based on historical data movement path to solve the problem for too long the device connection is established when the mobile smart devices collecting information along fixed lines, increasing the actual data transmission time and improve the efficiency of information transmission

Research on Mobile Information Access Based on Internet of Things

The cow breeding work has been using inefficient methods of artificial observation and physiological test to determine the estrus status of cows. Furthermore, these methods have disadvantages of high missed check possibilities for the estrus is usually long-cycled and has a very short duration. The cow estrus detection system is based on NB-IoT communication (Narrow-Band Internet of Things Communications). Some researches have shown that cows' exercise capacity and their physical status such as temperature will change significantly during their estrus. The system is used to discover the unusual changes of cows' physical status to determine the cows' estrus status and report to administrator in time. The system makes it possible to reduce workers' pressure and improve economic returns of pastures. The monitor worn on the neck records cow's physical status such as body temperature and exercise capacity and then upload to our server via NB-IoT communication modules. Furthermore, the data will be analyzed and processed by our application on android. Also, image recognition technology will be used to determine the cow's estrus behavior as a supportive method to improve the accuracy of our system.

Dairy Cow Health Monitoring System Based on NB-IoT Communication

In view of the current low level of agricultural Internet of Things application in the north of Anhui Province, this paper integrates cloud computing, big data, Zigbee, WeChat public number and other technologies to design and implement a monitoring system based on agricultural Internet of Things. The sensing layer device collects the sensing data, and network layer processes and transmits it to cloud platform. Cloud platform makes real-time analysis and decision after processing of data, so as to realize real-time monitoring of agricultural production and automatic control of equipment.

Development of Agricultural Internet of Things Monitoring System Combining Cloud Computing and WeChat Technology

At first, the concept and development of Internet of Things were introduced. And then the Internet of Things architecture was described. The key technologies of Internet of Things were analyzed, including RFID technology, sensor network technology, intelligent technology, nanotechnology and cloud computing technology. At the same time, some problems in the development of Internet of Things were presented. Finally, this paper gave the future prospects of Internet of Things Technology.

Ge Li

Papers

Research on Internet of Things Technology