5 results about "Fire evacuation" patented technology

The utility model relates to high -rise building escape passage technical field discloses a kind of high -rise building escape passage smoke gas backflow guiding device, including first air pipe, the top and bottom of the first air pipe are respectively connected with connecting air pipe and passage air pipe, and the top of the connecting air pipe is connected with second air pipe, by setting switchable air guiding passage and matched fan, ventilation and air change between building interior and escape passage are realized under normal circumstances, airflow path leading to evacuation passage can be automatically closed under emergency such as fire, prevent smoke gas backflow, and smoke gas is quickly guided to building exterior and discharged, effectively improve high -rise building fire evacuation safety;Meanwhile, the device is equipped with synchronous driving's scraper cleaning mechanism, can automatically clean filter plate, avoid dust accumulation to influence smoke exhaust efficiency, ensure long-term stable operation of system.

The application discloses an underground parking lot intelligent fire-fighting evacuation method based on group theory, belongs to the technical field of cross of fire engineering, intelligent traffic and applied mathematics, and aims at the pain point of fire-fighting evacuation of an ultra-large-scale underground parking lot, realizes global optimization through three core mechanisms, including the following steps of S1, constructing a topological graph model and a permutation group congestion governance mechanism, generating a minimum cost permutation sequence to dynamically adjust vehicle distribution; S2, realizing partition autonomy and cross-zone cooperation based on normal subgroup theory, and guaranteeing load balancing through direct product decomposition; and S3, establishing a group homomorphism from a risk field to a path set, excluding high-risk paths through a homomorphism kernel, and dynamically generating a safe evacuation network. The application eliminates the conflict of opposite traffic flows through the commutative law of Abelian groups, realizes load balancing through a prime power constraint subgroup dynamic adjustment mechanism, and provides a reliable scheme for fire-fighting evacuation.

The application relates to a data processing system based on a multimodal fire prevention and control emergency evacuation large model, which comprises multiple cameras, multiple direction indicators and a multimodal fire prevention and control emergency evacuation large model; wherein each branch intersection in a target site is provided with a direction indicator; each direction indicator is bound with a direction determination task; when a fire evacuation alarm of the target site is triggered, each direction determination task is executed immediately and is repeatedly executed at a preset time interval; the global optimal evacuation path determination task is decomposed into multiple relatively lightweight and distributed local direction determination tasks, so that the response delay of single decision is reduced; and the direction determination task is repeatedly executed at a preset time interval, so that the evacuation path formed by the target directions displayed by the direction indicators can timely reflect the optimal evacuation path conforming to the current actual situation of the target site, and the overall evacuation efficiency can be improved.

The application discloses a flexible wearable fire evacuation path planning and guiding device and method based on UWB sensing, and relates to the technical field of fire safety evacuation path planning.The system comprises a flexible wearable main body, a positioning communication module, an environment sensing module, a central control unit, a flexible driving module, a multi-modal interaction module and a building fire control system; wherein the positioning communication module fuses UWB, IMU, BIM constraints and SLAM positioning to realize failure completion, the central control unit performs multi-source fusion risk coupling positioning, regional risk assessment and old age adaptive dynamic obstacle avoidance path planning, the flexible driving module and the multi-modal interaction module cooperatively output power assistance, tactile, visual and auditory guidance, and link lighting, smoke exhaust, fire doors and other facilities, and are suitable for safe, efficient and continuous evacuation of people with difficulty in movement in a complex building fire environment, and improve path decision accuracy and linkage control reliability.

The application provides a fire evacuation path planning method and device, equipment and a storage medium. The sensor data of each space node in a building BIM model is acquired, the pre-trained preset prediction model is combined to output CO concentration prediction data, smoke concentration prediction data, visibility prediction data and temperature prediction data, the preset grade threshold is used to determine the danger grade of each space node and a target space node with a non-dangerous danger grade, and the data amount of path searching is reduced. The comprehensive risk score of each target space node is obtained by weighted calculation according to the CO concentration prediction data, the smoke concentration prediction data, the visibility prediction data and the temperature prediction data of the target space node, and the fire evacuation path is determined based on the graph structure and the comprehensive risk score by using a path searching algorithm, so that the speed and accuracy of path searching are ensured.