Abstract: A Cartesian robot fire extinguishing system for telecom engine room and data storage center was designed. Combining with pyroelectric sensor and camera monitoring system, precise positioning of fire source can be achieved. Multi-objective simulated annealing algorithm was used to optimize the robot's travel path, so the fire can be extinguished quickly. Simulation experiment was carried out in the closed machine room to verify the performance of the fire extinguishing system. The experimental results showed that the designed rectangular coordinate fire extinguishing robot has no displacement conflict during travel, and can find the optimal fire extinguishing path according to the fire source position to achieve fast and efficient fire extinguishing.

Key words: MOSA, Cartesian robot, fire source location; path optimization