Abstract
Based on the wireless sensor network, this paper combines node monitoring data with intelligent network address management. Users can view real‐time environmental data through a computer or mobile phone and can manually remotely manage the environmental adjustment equipment of the network address through the mobile phone. This article first discusses the research background of the subject, introduces the current domestic and foreign research status of WSN in environmental detection, and analyzes the reasons for choosing ZigBee network as the wireless transmission environment of the intelligent monitoring system. Secondly, the structure, layered model, and key technologies of wireless sensor networks are introduced, and it is pointed out that ZigBee technology, which has the characteristics of low power consumption, reliable communication, self‐organization of the network, strong self‐healing ability, and low cost, is very suitable for application in the environment. Then, it analyzes TI’s protocol stack Z‐Stack based on the ZigBee2006 standard and analyzes the network address assignment and addressing in Z‐Stack, the process and steps of node binding, the routing mechanism and routing maintenance, and channel configuration. The realization of other functions was discussed in depth. During the simulation experiment, in the hardware design of the intelligent monitoring system, the network node was divided into two parts: the core board and the backplane. The crystal oscillator, power supply, antenna, and I/O port circuits of the core board were designed, and the data acquisition, relay, and power supply of the backplane were designed. Finally, this paper studies the data security issues in the environmental monitoring network and proposes two solutions to control network access and data encryption. Experimental results show that in terms of low‐power design, the energy of the entire system is calculated to determine the factors that affect the power consumption of the system and methods such as increasing the node sleep time to ensure that the system can work for a long time.
Highlights
Environmental monitoring has the characteristics of large number of monitoring points in the area, long monitoring time, and complicated monitoring conditions
Considering that wireless sensor network technology is more and more used in the field, and WPAN based on IEEE 802.15.4 standard has the advantages of low speed, low cost, and low power consumption, this paper proposes based on the existing research at home and abroad
The realization of data collection is under the TinyOS 2.1.2 platform, the program based on RPL routing written by NesC language that can accurately collect the temperature, humidity, light, and other information in the environment is burned to the TelosB node, and through the network address deploy TelosB nodes to form a wireless sensor network
Summary
Environmental monitoring has the characteristics of large number of monitoring points in the area, long monitoring time, and complicated monitoring conditions. In the software design of the intelligent monitoring system, IAR is used to complete the compilation of the Zigbee networking protocol stack, so that the nodes can form a network and perform data transmission in a wireless and autonomous manner; the PC monitoring platform uses Visual C++ as the development environment and uses the industrial control iocomp to realize the functions of network address environment data display, fuzzy temperature control, server construction, and alarm; Android client uses the Eclipse development platform, designed for the menu, user interface, server connection, and other modules and realizes the use of mobile phones to obtain environmental data and control network addresses. Based on the RPL routing, a wireless sensor network-based environmental data collection function is designed; the function of the server and the MySQL database for storing environmental data are designed, and the network communication between the server and the client is realized
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