117 results about "Fire evacuation" patented technology

The invention discloses a large high-rise building indoor fire urgent evacuation indication escape method and system, and belongs to the field of high-rise building fire safety. The large high-rise building indoor fire urgent evacuation indication escape method comprises the following steps: step 1, a fire source is located; step 2, a dynamic module of fire spread is set up; step 3, according to the dynamic module of fire spread in combination with the structural information of a building, the spatial position of an ignition point and the spatial position of fire-fighting equipment in a large high-rise building are determined, predictions are made over fire spread paths, and evacuation escape routes are planned; step 4, according to the designed escape routes, site equipment is controlled in a selective mode for assisting people in evacuation. According to the large high-rise building indoor fire urgent evacuation indication escape method and system, the fire control escape routes are made based on specific fire behavior, so that evacuation time is shortened; the existing problems that when a fire breaks out, a fire control evacuation escape way is crowded , low in efficiency and disorderly and stampedes easily occur are solved fundamentally; the practical significance of improving the safe evacuation performance of the large high-rise building and reducing the property loss and casualties caused by the fire in the large high-rise building is quite high.

The invention discloses a high-usability high-reliability and high-efficiency fire evacuation indicating system and a method. The system adopts a three-layer system structure formed by an evacuation indicating control host machine, passageway evacuation indicating control sub machines and passageway detection/indicating devices, wherein the passageway evacuation indicating control sub machines are positioned at stairs of each floor, each unit of the system exchanges information through an element interconnect bus (EIB), and the passageway detection/evacuation indicating devices are directly embedded into the control sub machines. Wireless backup communication is additionally added between the host machine and the sub machines (the passageway detection/evacuation indicating devices), and the integral reliability and the usability of the system are enhanced. The secondary threshold warning strategy of a composite fire hazard detector is adopted, a corresponding information processing method is used as an auxiliary measure, in addition, evacuation paths are continuously regulated according to the real-time fire conditions, the goals of shortening the warning time and reducing the mistake warning rate are reached, and the usability of the evacuation indicating system is further improved. The space positions of the detection/indicating devices are shown according to the floors on the basis of the three-dimensional geographical characteristics of the tall building evacuation paths, the building typical evacuation structure and the Dijkstra algorithm with an improved data structure are adopted, and the route planning efficiency of the escape route is improved.

A building fire evacuation path planning method and a building fire evacuation path planning system belong to the field of safety science and engineering and management optimization. The method and the system are provided in order to solve the technical problem on how to get optimal evacuation paths through one-off optimization calculation according to the fire point and a fire dynamic spread model under the premise that all to-be-evacuated people in a building just avoid a dynamic fire zone when a fire occurs to the building. In the one-time path optimization calculation process, the road network environment in the building is not static, but changes with the calculation process according to the given fire dynamic spread model. After path optimization calculation is finished, the system of the invention starts guide devices pre-installed in the building and sends the path optimization result and other information to the mobile application clients of the to-be-evacuated people, so that the to-be-evacuated people at different positions in the building can be guided by the guide devices and the mobile application clients to evacuate according to respective optimal evacuation paths.

The invention relates to a fire-fighting evacuation system and an evacuation method thereof. The system comprises fire detectors, portable positioning devices and a server. The fire detectors are arranged in a building, and the position of the building on fire and a specific fire source position can be obtained via information of the fire detectors when outbreak of fire in the building is judged. Meanwhile, position information of portable positioning device carriers in the building on fire is acquired, and an optimal evacuation path for the portable positioning device carriers can be calculated according to information of the building on fire, the position information of the portable positioning device carriers, fire source position information and fire-fighting channel information. The fire source position can be effectively avoided by the optimal evacuation path, the nearest or safest fire-fighting channel and safety exit to the portable positioning device carriers can be rapidly found, and the optimal evacuation path is the customized optimal evacuation path for the portable positioning device carriers so that the fire-fighting evacuation system and the evacuation method thereof are high in evacuation efficiency and safe.

Provided is an image-text displaying intelligentialized fire warning and evacuation indicating system. The image-text displaying intelligentialized fire warning and evacuation indicating system comprises a fire warning control host, a fire detecting unit which is connected with the fire warning control host, a fire warning device, fire-fighting joint action equipment, an evacuation indicating unit, an image-text displaying unit and an voice broadcasting unit. The fire detecting unit detects the happening of a fire, the fire warning device sends warning signals, the fire warning control host confirms the happening location of the fire, and a best evacuation route is formed. The fire-fighting joint action equipment is triggered to put out the fire. The voice broadcasting unit sends a voice warning. The evacuation indicating unit indicates evacuation directions in real time. The image-text displaying unit records and displays in-real-time running state of the system and detailed information of evacuation indication. Due to the fact that the evacuation indicating unit, the image-text displaying unit and the voice broadcasting unit are respectively connected with the fire warning control host, the image-text displaying intelligentialized fire warning and evacuation indicating system is capable of achieving the function of fire warning, evacuation indication, illumination, joint action fire-fighting, voice broadcast and dynamic displaying of the comprehensive running state of the system at the same time.

The invention discloses a personnel characteristic-based fire evacuation path navigation method which comprises the following steps: 1, obtaining fire behavior information through a fire detector, calculating an effective time range capable of being used for escape of each path; 2, reading personnel label information by using an RFID (Radio Frequency Identification) reader-writer, locating personal position information, performing personnel evacuating speed classifying according to the obtained personnel label information and the obtained personnel position information; 3, for personnel with different speeds, calculating evacuating path information by using a shortest path precedence algorithm, wherein the evacuating path information comprises a shortest path length value from an initial position to an outlet node D and all nodes on the path; and 4, sending the shortest path length value and all nodes on the path to personnel to be evacuated. According to the personnel characteristic-based fire evacuation path navigation method, the utilization rate of the path can be effectively increased.

The invention provides a fire evacuation system and method based on indoor positioning, and belongs to the technical field of geographic information. The system comprises a mobile terminal, a server and multiple Beacon base stations, wherein connection between the mobile terminal and the server is established, so that the fire-fighting facility information, the fire behaviour and the indoor map ina building are obtained; wireless communication connection between the mobile terminal and the Beacon base station is established through low-power Bluetooth; the real-time position of the mobile terminal is calculated by utilization of a trilateral positioning algorithm; and furthermore, the position information is uploaded to the server. The system performs indoor positioning by using the Beacon equipment; the Beacon base stations are pre-arranged indoors and powered by a battery; and continuous positioning in a possible outage condition can be carried out when a fire happens.

The invention discloses a fire evacuation system and an evacuation method. The fire evacuation system comprises a fire evacuation acoustic-optical indicating system, an acoustic-optical power supply system, a fire parameter detection system, a control system and a fire alarm system; the fire evacuation acoustic-optical indicating system, the acoustic-optical power supply system and the control system and electrically connected mutually; the acoustic-optical power supply system continuously supplies power for a lamp assembly in the fire evacuation system; the control system controls the acoustic-optical power supply system to supply power for a voice prompt device in the fire evacuation acoustic-optical indicating system through a second power supply circuit and controls the luminance of the lamp assembly and acoustic-optical contents of the fire evacuation acoustic-optical indicating system through the control circuit; the fire parameter detection system and the control system are electrically connected to the fire alarm system through data transmission lines respectively. The fire evacuation system can provide different evacuation guidance for users at different floors according to point locations of fires and fire conditions of fire scenes and avoids the users from running to error channels or taking error actions and accordingly gets into danger.

An escape and rescue device used in a multistory building during a terrorist threat or a fire to: a) evacuate a person or persons attached to an expandable disc support with an attachment that is lowered from an upper level of a building through a vertical tube, by using a lesser pressure at the top of the tube and a higher pressure at the bottom of the tube, using a door at the top or a door at the bottom to maintain pressure or by artificial air pressure, thereby permitting the fast evacuation of many people in a short time, b) it can be used by firemen in training in its use and benefits, c) also at amusement parks, where there would be a ride that would teach the users about its reliability and safety, and d) to transport firemen in a fast way from the ground to the upper floors without interfering with the evacuation in process at the congested stairways of the building.

The invention provides an intelligent helmet for rescue in a building and a rescue navigation method using the intelligent helmet, and belongs to the field of fire evacuation. The intelligent helmet comprises a helmet body, a CPU, a storage unit, a gravity sensor, a gyroscope, a horizontal acceleration sensor, a geomagnetic meter sensor, a common camera, a depth camera, a microphone, a voice player, a battery and a holographic lens. During use, a three-dimensional model of the building is established in the preparation stage, key points are calibrated in the model, and communication information of all the key points is generated; in the rescue navigation stage, a user determines a starting point and a destination, and the user is guided to reach the destination through a planning path guide arrow displayed on the holographic lens. By means of the intelligent helmet and the method, accurate positioning can be provided for the user in a building so that guidance can be provided when rescue is carried out in the building and rescue workers can quickly arrive at a rescue place, and the practical value is high.

The invention discloses a fire evolution simulation method. The method comprises the following steps: on the basis of a lattice Boltzmann method of a mesoscopic method, establishing a two-dimensionalfire simulation model in view of fire characteristics in subway stations in combination with related theoretical methods, adding a temperature distribution function evolution equation to a basic modelof the lattice Boltzmann method to construct a dual-distribution function thermal lattice method model so as to simulate the heat transfer in the fluid; performing turbulent flow simulation by usinga large eddy simulation method, importing a sub-lattice model, reconstructing a relaxation time in the model by using physical viscosity and eddy viscosity, and constructing a lattice Boltzmann sub-lattice model; and importing a boundary processing format of obstacles in the fluid to simulate the streaming of the fluid around the obstacles; and performing solution and calculation by using a vortex restriction method to reproduce a smoke concentration diffusion process. By adoption of the method, the fire evolution simulation is optimized, the simulation validity is improved, and the simulation error is reduced. The invenetion further discloses a fire evacuation comprehensive simulation method comprising the fire evolution simulation method.

Disclosed is a fire evacuation installation. When evacuees are not able to evacuate through an emergency exit or other means of evacuation when a fire occurs, the fire evacuation installation may safely protect the evacuees from flames and poisonous gas until rescue workers arrive. Further, the fire evacuation installation may be prevented from being damaged by exposure to rain, and the fire evacuation installation may have an elegant outer appearance and be more easily installed. In addition, the fire evacuation installation may be selectively moved between the floors of a building.

The invention relates to a fire evacuation operation device for group-controlled elevators, allowing a large number of people to evacuate in a short time. In the fire evacuation operation device for group-controlled elevators, the floors to be served are divided into service zones, the elevators serve from an entrance floor to each of the service zones, and when a fire detector placed at each floor detects fire, the device causes each elevator to stop at the nearest floor. The fire evacuation operation device has an evacuation operation possibility determination means (1B), a rescue floor setting means (1C), and an evacuation operation instruction means (1D). When a fire occurs, the evacuation operation possibility determination means (1B) determines that elevators serving a zone including a floor where the fire has occurred cannot perform evacuation operation, stopping operation of the elevators after they stop at the nearest floors, and also determines that elevators serving zones not including the floor where the fire has occurred can perform the evacuation operation. The rescue floor setting means (1C) sets, for the elevators that are determined to be able to perform the evacuation operation, rescue floors according to the floor where the fire has occurred. The evacuation operation instruction means (1D) assists evacuation of people in a building by making the elevators, determined to be able to perform evacuation operation, reciprocate between the entrance floor and the rescue floors.

Disclosed is a laser light system for narrow hallways, a night light for small rooms, and a fire evacuation system. The system provides a means for less infrastructure to light narrow and small areas as well as directional lighting for fire escape.

The invention relates to an indoor moving evacuating guiding and rescue system which comprises a monitoring master station, an intelligent fire-protection emergency lamp and a mobile terminal. The system is characterized in that the monitoring master station is composed of a master controller and a system communication interface, the intelligent fire-protection emergency lamp is composed of a fire-protection emergency lamp body, a microprocessor, a system communication interface and a wireless communication interface, and the mobile terminal is composed of a microprocessor, a battery, a display device, a wireless communication interface and an electronic compass. The intelligent fire-protection emergency lamp is connected with the system communication interface of the monitoring master station through the system communication interface, and the mobile terminal can intercommunicate with the wireless communication interface of the intelligent fire-protection emergency lamp through the wireless communication interface. The system has the advantages that when fire outbreaks, position information of trapped persons is sent to a fire-protection rescue person, passive rescue is changed to active rescue, and blind recue is changed to be transparent rescue.

The invention belongs to the technical field of tunnel fire evacuation and rescue and discloses a guide rail type tunnel wall surface rescue and escape cart. The guide rail type tunnel wall surface rescue and escape cart comprises a lifting rail and an escape cart body capable of moving along the lifting rail. The escape cart body comprises a sliding structure matched with the lifting rail, a cart frame and a refractory plate platform. The lifting rail is provided with a fastening structure which is used for being fixed to the tunnel wall. The cart frame is movably connected with the lifting rail through the sliding structure. The refractory plate platform is arranged on the cart frame and pivoted to the cart frame through a pivot shaft. A rotatable smoke prevention hood is arranged on the refractory plate platform.

The invention discloses an intelligent system integrated with routing inspection, evacuation and firefighter guide, which comprises a Zigbee wireless intelligent fire-fighting evacuation indicating lamp, a Zigbee wireless fireground firefighter one-man guide instrument, a Zigbee data collector, a Zigbee network protocol converter, a server, a fireground command system and a fire-fighting safety evacuation inquiry and supervision system. The Zigbee wireless intelligent fire-fighting evacuation indicating lamp, the Zigbee wireless fireground firefighter one-man guide instrument and the Zigbee data collector form a Zigbee network which is connected with the server through the Zigbee network protocol converter. The server is connected with the fireground command system and the fire-fighting safety evacuation inquiry and supervision system. The intelligent system is integrated with the routing inspection, the evacuation and the firefighter guide during fire-fighting management work, improves fire-fighting fire prevention supervision work efficiency, reduces the death rate of firefighters in the fireground, and can intelligently evacuate trapped persons in the fireground.

The invention provides a regional modular intelligent fire evacuation system which comprises an intelligent fire emergency region controller (1), an intelligent projection device (2) an Internet human-computer information exchange platform (3), a regional fire alarm system (FAS) (4), and a regional battery management system (BMS) (5). When a fire occurs, according to the system, the collection of fire site dynamic information in a building is realized through each regional fire alarm system, the communication between devices in a module and between the modules is realized through a communication technology realization module, the intelligent fire emergency region controller automatically generate an optimal dynamic escape route, and the route is formed by the relay of projection path guidance lamps. According to the system, the defects of low guidance efficiency of an evacuation system, confused sign setting, and difficult identification of signs in smoke in a present large and complex building is effectively solved.

The invention provides an intelligent fire-fighting evacuation method. A safe, reliable, orderly, unblocked and effective evacuation indicatory sign route is quickly and dynamically established for persons in different positions of a building intelligently according to factors such as a position relationship between the persons in the building and a fire happening place, whether the persons are adjacent to other fire compartments or not, opening states of roller shutter doors in other fire compartments, whether the persons pass through the fire happening place to lead to other fire compartments or not, a smoke spread direction, a dynamic flow density of an evacuation exit and the like. Meanwhile, indication directions of fire-fighting evacuation indication lamps are timely and accurately subjected to dynamic adjustment according to a specific optimal escape route, thereby guiding escapers to quickly and effectively escape. The method provided by the invention is a brand-new evacuation method, reflects a design concept of modern fire-fighting evacuation that "keeping fire away is a premise and proximity evacuation is a principle", and is of important practical significance for improving current situations of current fire-fighting safety evacuation in China and enhancing city public safety.

A carrying ladder for floor densely-distributed fire evacuation exits comprises a fire alarm device, a carrying ladder and a driving device, wherein evacuation exits leading to the lower floor are distributed at the passage of each floor at intervals; the carrying ladder is arranged on an escape platform under the evacuation exit; two retractable support bodies of the carrying ladder are connected through a foot pedal; a control shaft at one end of each retractable support body is connected to a cylinder; gears on two sliding arms are engaged with toothed grooves; the driving device drives a rotating shaft and a drag cable turntable to rotate; telescopic sleeves arranged at intervals are longitudinally connected above the retractable support bodies; rollers arranged at the top ends of the telescopic sleeves are matched with a track fixed under the floor slab; a drag cable connected with the retractable support body and the driving device is arranged in the telescopic sleeve located at the lifting end of the retractable support body; a cover body is arranged at each evacuation exit; and a lifting device is arranged under the cover body. The carrying ladder provided by the invention is telescopically adjustable, and can be quickly started for work, and people can escape quickly and safely.

The invention discloses a fire-fighting evacuation method. The method comprises the steps of obtaining fire parameters collected by a perception sensor in real time and position information of the perception sensor; according to the fire parameters, the position information of the perception sensor and pre-stored structure information of a current building, planning a target evacuation route, andgenerating a corresponding fire escape plan; responding to a request for checking the fire escape plan, transmitting the fire escape plan to a client side corresponding to the request, and performingreal-time display so that a user can escape according to the fire escape plan. It can be seen that the method can generate the fire escape plan in time according to the ignition position and can enable a trapped person to find an emergency exit for the first time by means of the fire escape plan; the fire escape plan displayed in real time can also dynamically monitor the fire tendency, and firefighters can put out a fire conveniently. Correspondingly, the invention discloses a fire-fighting evacuation system, device and equipment which achieve the technical effects.

The invention discloses a fire evacuation method and device and a readable storage medium. The method comprises the steps of receiving parameter information monitored by a fire detector in real time,wherein the parameter information includes smoke parameters, gas parameters and temperature parameters; according to the parameter information, judging whether or not a current unit has a fire, and ifyes, obtaining position information of a fire point; according to position information and positioning information of the fire point, calculating and determining a channel entrance farthest away fromthe first point so as to dredge escape persons to escape to the channel entrance farthest away from the fire point. According to the fire evacuation method, when a fire happens, the escape persons are dredged to escape to the safe channel entrance, the phenomenon that persons enter a risky safety passageway by mistake is avoided, and actual escape safety is ensured.