Visual SLAM-based fire extinguishing robot for energy storage power plants

With the increase of energy storage stations, fire accidents in lithium battery energy storage compartments occur frequently, seriously threatening the stable operation of the power system and the safety of personnel. To solve the danger of manual fire extinguishing, a visual SLAM based fire extinguishing robot for energy storage stations has been designed. In response to the environment of the energy storage station, the main structure and firefighting operation mechanism of the robot have been designed to ensure that the robot can smoothly carry out firefighting operations at the energy storage station. Explored the characteristics of lithium-ion battery fires and the laws of thermal runaway, analyzed the fire extinguishing mechanism of liquid nitrogen, and found that using liquid nitrogen as a fire extinguishing agent has a good inhibitory effect on lithium-ion battery fires. In order to achieve efficient fire extinguishing, and due to the limited liquid nitrogen capacity that robots can carry, a fast autonomous positioning and mapping (SLAM) fire extinguishing strategy for energy storage power plant fire extinguishing robots in unknown environments was designed to ensure maximum utilization of liquid nitrogen. Simulation experiments were conducted on this fire extinguishing strategy, and the results showed that it can extinguish open flames within 10 seconds, effectively suppress the spread of battery thermal runaway, and control the concentration of combustible gases in the cabin beyond the explosion limit. The fire extinguishing robot and extinguishing strategy have a significant inhibitory effect on lithium battery fires in energy storage stations.