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- Aug 04, 2018 -

The fire broke into the sky, and the first time it rushed into the fire, it was a drone "firefighter."


It rises lightly and avoids the fire of "tooth claws", which penetrates the blazing flame to find the fire point hidden in the depths of the building.


Even in the darkness of the five fingers, it can still complete the task. The drone "firefighter" is equipped with an infrared thermal imager, which can lock the position of the fire point through the temperature difference and pass it to the rear at the first time.


It is not willing to be an aerial scout, but a veritable firefighter. It can fly directly above the fire, cast a flame retardant bomb, in the violent explosion, the first time the ground fire is extinguished.


This is a scene of future firefighting displayed at the International Fire Safety and Emergency Rescue Technology and Equipment Exhibition held in Tianjin. At the Smart Fire Summit held in the same period, experts and business representatives from the national fire protection industry sat together to discuss: Where is the smart fire road?


"Fire Eye" can instantly alarm the tiny fires of the video. Big data and supercomputer can already calculate the time and place of the fire. Nowadays, smart fire has become an important part of the construction of smart cities, directly affecting the safety of everyone in the city. development of. On October 10, 2017, the Fire Department of the Ministry of Public Security issued the "Guiding Opinions on Comprehensively Promoting the Construction of "Smart Fire"", clearly proposing to rely on the construction of "smart city", actively research and develop smart fire platform, and use emerging technologies such as Internet of Things and big data. Improve wisdom and fire protection.


A variety of new technologies are constantly emerging, how should smart fire protection develop in the future? Can urban management keep up with the speed of technological development? How to build an intelligent fire safety system to make it fit the development of smart cities, making people live safer and more happy? This became a hot topic for participants.


Firefighting into the Internet of Things era


The fire is ruthless. Who will protect the safety of firefighters who are against the fire? At the exhibition, a set of intelligent object air call system helped firefighters put on the armor of science and technology.


Air breathing apparatus, hand-held terminals, physical bracelets, video transmission, thermal imagers, etc., a set of protective equipment has become a control "brain." It transmits the life signs and fire changes of each firefighter to the rear remote command center, and transmits the rear instructions to each firefighter at any time.


It seems that this is an intelligent positive pressure air breathing apparatus, which can send fresh and clean air to the fireman's mouth at any time to isolate all kinds of toxic gases around. However, it is a miniature intelligent assistant with a firefighter. Through the handheld terminal, it prompts the cylinder pressure, remaining usage time, fire temperature, battery power, signal strength and other information. At the same time, it can sense the situation of surrounding teammates. Once there is an abnormality such as someone falling down and insufficient remaining air volume, it immediately reports to the surrounding teammates and provides quick assistance.


Liu Jinshan, director of Tianjin Zeantai Fire Technology Co., Ltd., said that this is an air-calling system based on Internet of Things technology. It integrates air-sending information display devices, personal respirators, and field-based search and rescue devices to ensure maximum fire safety for firefighters. ."


"What is needed for the scene, what should be solved by firefighting?" This is the wisdom scene of Zhao Xingdong, president of the Internet of Things Branch of the China Communications Industry Association, in the Internet of Things era, with the ideal effect of "anti-cancellation".


In fact, in the field of fire protection, the Internet of Things is not a completely new concept. He said that with the iterative advancement of technology, people have experienced several stages of the FireWire IoT.


"In the past, it was based on networking. It was installed with spray, connected to the main unit of the device, and tried to monitor remotely." Zhao Xuedong talked about a common confusion at the time, and connected these devices to what they can do. I am very confused, I don't know how to use it, and eventually I am dissatisfied with the end user. "You installed it for me, collected my money, what is the use for me?" That is, it did not really solve the problem.


A common situation now is to "reinforce the light and eliminate it." For example, in the past, it was often the case that the fire exit was blocked, and when someone checked it, it was removed. Now with the sensor sensor, no one can hold the buddha. “There are a lot of equipments that are concerned about how to prevent them, and the regulatory effect has indeed improved, but there is a lack of intelligent application of the stage of ‘elimination’.”


He analyzed four major problems exposed by major domestic fires, namely, the lack of fire information, the rescue data is limited to two-dimensional planes; the lack of means for detecting fire scenes, the weak ability of rescue personnel to detect disasters; the excessive command of combat command relies on experience; Difficulties, etc.


These are the real problems that have been plaguing firefighting rescues. After entering the fire, firefighters often do not know the situation and have a very unknown risk. "Where there are dangerous goods, unknown facilities; how firefighters are positioned, how to contact with the outside world, etc." Zhao Xuedong said that the traditional methods now seem to be prone to problems, need to solve the self-organizing network between firefighters, real-time video of fire scenes Passing on a series of questions, "an urgent need for a large number of technological innovations."


Opportunities and challenges brought by smart fire


80% of the deaths in China are not serious fires. They often occur in “nine small places”, namely small shopping malls, small schools (kindergartens), small hospitals, small dining places, small hotels, small song and dance entertainment venues, small Internet cafes, small beauty bathing places, small production and processing enterprises, etc. Firefighting expert You Shengzhan said that fire safety awareness in these places is weak, safety measures are not in place, there are serious safety hazards, and personnel are intensive. Once an accident occurs, it will cause heavy casualties. "The Internet of Things, especially the development of smart fire protection, can Solve the problem of a small fire."


Experts from Tsinghua University demonstrated the intelligent integrated command and dispatch platform. Simply put, this is a fire fighting dispatch system. Starting from the police, the system is like a "smart brain", planning the fastest way to the scene of the fire; after arriving at the fire, the system acts as a "commander", quickly surveying the scene's three-dimensional graphics, and pushing the operational information directly to the command center, with First-line firefighters exchange information instantly.


However, technological innovation alone cannot completely solve the problems in reality.


You Shengzhan said that the intelligent fire protection in the Internet of Things era is not only a transmission of information, but to achieve overall controllability. “Smart systems can achieve instant alarms, but also consider how to better extinguish the fire,” he said. For example, fire extinguishing systems must have the ability to think and calculate. For example, in the event of a fire, the system must be able to identify and analyze the fire. When the sprinkler is sprayed and the spray is large, it must be carefully controlled. "In the past experience, the water damage caused by fire extinguishing is likely to be greater than the loss of fire. The 'brain' is needed to accurately assess various risks. ."


He also noticed a real problem. The new technology drove the rapid development of the smart fire protection industry. At present, there is no unified administrative department to take the lead in the development of the industry, nor has it formed a unified norm, and the innovation of new technologies and new equipment in various cities and different enterprises. They are all individual combat, and there is no synergy."


The more important real problem is that people's awareness of fire protection is far behind the speed of technological development. Yu Shengzhan said with some helplessness, "I asked hundreds of fire experts on the scene, who installed a free-standing smoke alarm at home, and the result was less than 10 people."


Experts from Tsinghua University also said that the research on the intelligent fire protection system encountered the problem of "grounding gas". He believes that the smartest intelligent fire protection system is not built in the laboratory. "It must be combined with fire practice, and the data collected in the practice can be improved continuously to achieve the best results."


Technological advances have also brought greater challenges to managers. "For example, if we find out through the sensors that the fire control channel is blocked, how should the regulatory authorities manage it? Statistics show that the electric vehicle charging accident is an important incentive for the community fire. How does the relevant management department handle it?" He believes that the era of the Internet of Everything is becoming more and more The "smart" technology will also force the government's management to be more intelligent.