Fire  Spatial Positioning: Accurate Locking of the Fire Source Fuel Area

    Accurate spatial positioning of fire sources is the key foundation for achieving efficient fire-extinguishing, as it directly determines the precision and effectiveness of fire-extinguishing operations. Our company’s independently developed fire source positioning system innovatively integrates fire source image segmentation and depth mapping technologies, aiming to accurately and quickly lock onto the fire source fuel area—significantly overcoming the limitations of traditional positioning technologies.

    The stereo camera simulates the visual perception principle of human eyes, using two cameras to capture images of the fire source from different angles. Based on the parallax principle, it accurately calculates the positional difference of the same fire source point in the two images, and combines the inherent parameters of the cameras (such as focal length and baseline distance) to construct a high-precision 3D spatial model. This process enables the acquisition of the fire source’s horizontal and vertical coordinate information, providing basic spatial data support for fire source positioning.

    The core innovation lies in the BEC-SVM algorithm—a high-speed fire source detection and segmentation algorithm for event cameras. This algorithm breaks through the challenge of data fusion between event cameras and stereo cameras: by optimizing data interaction and processing logic, it enables efficient collaboration between data from different types of sensors. In terms of the design and optimization of the positioning algorithm, the BEC-SVM algorithm comprehensively considers various environmental factors and data features, and applies advanced machine learning strategies to significantly improve the accuracy and stability of positioning. Meanwhile, through optimizing the algorithm architecture and calculation process, the system’s real-time performance and robustness in complex fire scenarios are ensured—successfully increasing the spatial positioning accuracy of fire sources from less than 10% to over 90%.

    Unlike the automatic fire monitor positioning technologies currently available on the market, which can only orient the fire source as a whole, our system leverages 3D point cloud mapping technology to accurately calculate the specific 3D spatial position of the fire source. This includes the fire source’s orientation, height, and precise distance from the firefighting robot, achieving accurate positioning of the fire source fuel area. This high-precision positioning information provides detailed and reliable target position data for the subsequent automatic targeting and fire-extinguishing module, ensuring that the fire-extinguishing device can accurately align with the core area of the fire source—greatly improving the efficiency and success rate of fire-extinguishing.