fire exit
223315902
A kind of fire exit door with automatic fire extinguishing function
The invention discloses a kind of fire exit door with automatic fire extinguishing function, including fire exit door, water tank, water inlet, outlet pipe, multichannel water pipe, magnetic valve, sparge pipe and hole for water spraying, temperature inductor is provided with inside and outside the fire exit door, it is internally provided with controller, and temperature inductor and magnetic valve are electrically connected with controller, the water tank is made up of plastic material, protection cap is provided with the water inlet, the sparge pipe is radially arranged on inside fire exit door, compared with prior art, the beneficial effects of the invention are as follows a kind of fire exit door with automatic fire extinguishing function, it is simple in construction, spreading for the intensity of a fire can effectively be prevented, the fire on fire exit door can be put out simultaneously, strengthen the service life of fire exit door in a fire, provide the user longer escape time, it is adapted to promote the use of.
146986550
Fire exit signs: The use of neurological activity analysis for quantitative evaluations on their perceptiveness in a virtual environment
Emergency signs represent the easiest way to assist a person during an emergency building evacuation, such as in a fire. However, previous studies show that signs can also not be correctly perceived (because of: smoke/lighting conditions, sign positions in relation to individual's position, pictograms dimensions) consequently becoming useless. This study focuses on the effectiveness of exit signs, in terms of type and position. The related numerical quantification is founded on an objective experimental neurological method. A neurological stimulus (P300) is generated when the individual understands the meaning of the sign. It is so possible to objectively evaluate by using a neuro headset the performance of each subject in terms of perceptual attention. The use of similar direct data overlooks errors connected to conscious or unconscious individual mediation in answers. Evacuation motion simulations are performed using a virtual reality environment because of limits in the neuro headset use when walking. Two types of exit signs (reflective and photoluminescent) are tested considering different positions and environmental conditions (illuminated and not) The sign identification distance is retrieved and compared to results of real world experiments. Finally, the sign effectiveness is also inquired in terms of statistical P300 presence on the analysed sample.
Martina Occhialini Gabriele Bernardini Francesco Ferracuti Sabrina Iarlori Marco D'Orazio Sauro Longhi
132652854
Fire exit sign isolated
113422024
CENTRAL BUILDING FIRE EXIT LOCKING SYSTEM
Ahmad Danial Bin Abd Gaffar Muhammad Nazir
86373558
Fire exit navigation method and system
The present invention relates to a method and system for fire exit navigation, real time acquisition of the current position and the current evacuee who flow rate information, the current position to the fire position, the evacuee, current location information, and information flow of people, each evacuee the current target is determined independent safety exit, according to the second identification information and sending portable mobile terminal to the corresponding portable mobile terminal may establish safety exits and escape routes for the line with their actual escape all staff have portable mobile terminals in place, greatly reduced casualties.
106822318
Fire Exit Signs in Birmingham, 4 point fire solutions Ltd Fire Exit Signs
4 point fire solutions Ltd provides a range of Fire Exit Signs services including Site Audits and Fire Extinguisher Supply.
Smart Phone Searches dash Jamie Cookson
14011524
Exit selection and pedestrian movement in a room with two exits under fire emergency
An extended multi grid model is proposed to study fire evacuation in a two exit room. The exit selection based on random utility theory, as well as the pedestrian movement in fire, is investigated. The effects of different occupant types, the utility threshold, heat release rate of fire, burning materials and pre movement time on evacuation are discussed. The results show that active occupants are beneficial for evacuation because of their guidance to the herding pedestrians, whereas, the existence of conservative is not always good for evacuation; a proper frequency of changing target exit can relieve congestion and optimize evacuation process; evacuation time is not monotonically increasing with the increment of heat release rate due to acceleration when pedestrians feel the incentive of high temperature within limit; the effect of burning material on evacuation is related to its thermal physical properties; the pre movement time aggravates the difficulty of evacuation due to the bad visibility and high CO concentration in fire situation. The study may be useful to predict exit selection and pedestrian movement process, and then give suggestions to guide pedestrian evacuation under fire emergency.
Appl. Math. Comput.
Shuchao Cao Libi Fu Weiguo Song
13164950
Hazardous signs and fire exit signs classification using appropriate shape coding algorithm and BPN
This paper presents the hazardous signs and fire exit signs classification in vision based fire protection and fire evacuation paths control system. The algorithm described here take an advantage of image sign features that their colors and shapes are very different from natural environments. The system is divided into three parts, first for image detection by CCD camera that is installed with user's cover head set. The camera is connected to user with their PDA and then sent this image data via on Wi Fi Channel to fire protection control system center. The preprocessing process is used to reduce the noise effect and shape coding analysis with a continuous thinning algorithms are used in second part for reduced the sized of data and can be representatives for suitable features of image data to classify by an image binary data encoding algorithm. Finally, the Back Propagation Neural Network (BPN) techniques are used in image recognition and classification process and display the correct sign that meaning for suitable fire extinguishers and fire evacuation paths. By applying the present method, performance has been improved which more than 96% correctly in laboratory room. Some results from natural scenes are shown that system performance may be improved the capability to detect the image signs in longer range and more efficiency adjust in classification algorithms that can be support for real time capture image as VDO streaming.
2012 Ninth International Conference on Computer Science and Software Engineering (JCSSE)
Songkran Kantawong
127601562
Ice Fire Exit Reizen, de USA reizen specialist
39711797
Dissuasive exit signage for building fire evacuation.
This work presents the result of a questionnaire study which investigates the design of dissuasive emergency signage, i.e. signage conveying a message of not utilizing a specific exit door. The work analyses and tests a set of key features of dissuasive emergency signage using the Theory of Affordances. The variables having the largest impact on observer preference, interpretation and noticeability of the signage have been identified. Results show that features which clearly negate the exit message of the original positive exit signage are most effective, for instance a red X marking placed across the entirety of the exit signage conveys a clear dissuasive message. Other features of note are red flashing lights and alternation of colour. The sense of urgency conveyed by the sign is largely affected by sensory inputs such as red flashing lights or other features which cause the signs to break the tendencies of normalcy.
Applied ergonomics
Joakim Olander Enrico Ronchi Ruggiero Lovreglio Daniel Nilsson