The Design of Photoelectric Sensor Node Under Lithium Rich Cathode Battery and Its Power Consumption Analysis in Photoelectric Sensor Network

Abstract

In the research, LixMnyNiz was obtained by co-precipitation method according to the capacity limitation characteristics of positive electrode material of lithium ion battery, and then Li-[LixMnyNiz]O2 was obtained with lithium containing compounds. By using the generated positive electrode material, the electrode plate is made and the battery is assembled. The battery is used on the photoelectric sensor node. In the design of photoelectric sensor node, the power supply adopts the battery designed in this research. CC2530 chip was used for the controller module of the sensor, and the photoelectric sensor BH1750SVI and sfh3410-2 were included. After the sensor node is designed, the communication extension node, interference source module, mobile carrier module and data analysis module were further elaborated, so as to realize the construction of photoelectric sensor network. In the experimental test, electrochemical test was conducted on the obtained lithium-rich anode material. The specific capacity of the material’s first discharge could reach 227 mAh/g, and the capacity of the material after repeated cycles could be maintained at more than 80%, but the performance of the multiplying ratio needed to be further improved. In the node power test, the traditional battery sensor node was compared with the sensor node proposed in this research. The energy consumption of the latter is 10% lower than that of the former, which indicated that the improved battery wireless sensor node proposed in this research can reduce the power consumption of the sensor network.