At the main forum of the 18th China Smart City Conference, Zhou Chenghu, an academician of the CAS Member, described a new picture of future urban governance: low altitude airspace below 600 meters is becoming a strategic new highland for smart city construction. This pioneer in the field of geographic information systems pointed out that low altitude unmanned aerial vehicle remote sensing technology will reshape the urban perception system and inject new momentum into the construction of digital China.
Today, we have entered the digital age. In the era of digital civilization, how should civilization go? What is the city that digital civilization brings to us, while industrial civilization brings us skyscrapers? Everyone needs to undergo digital transformation and upgrading.
To achieve digital transformation and upgrading, one must have wisdom. General Secretary Xi Jinping emphasized at the 2015 Central Urban Work Conference that we must do a good job in the digital transformation of cities. Last year, the National Development and Reform Commission issued guidance on comprehensive digital transformation, aiming to achieve all-round, full process, and full field goals. This is what we are going to talk about today. This has put forward many new requirements for us.
We have done BIM and achieved CIM with BIM, which is the foundation for doing a good job in urbanization transformation. To have this foundation, as introduced by General Zhang Bing (Chief Planner of the Ministry of Natural Resources), today we need to build the temporal and spatial foundation of the city. Making a base not only involves data, but also artificial intelligence. We have now adopted a name called a digital base, which has both data and intelligence. This presents a great challenge for all of us present here.
After the challenge, the second question arises: cities are always developing. Call it low altitude up and underground space down. The early development of human space was on the surface where we farmed; The upward development started with industrial civilization, and many high-rise buildings have been built. At present, the highest building is more than 800 meters, and the Shanghai center is 632 meters. People walk from the surface; Not enough, walking from land to the ocean, all of our tallest cities and super sized cities are now in the ocean belt; At present, we cannot build artificial islands in the ocean. One day, I believe that immigrating to the ocean is more realistic than immigrating to Mars and the moon. There aren't enough people inside, so it's our aviation industry; The aviation industry is not enough, we need to go into space. With our satellite remote sensing, Academician Li Deren talked about our space economy system.
After that, we found that our low altitude is not enough, so the Chinese first proposed to develop low altitude economy, which is an original in a sense. If we use the 600 meter airspace above the ground to develop our smart city, it will reshape the social and economic activities of our entire human society.
We have satellites in the sky, what are on the ground? So in the past year, everyone has been promoting low altitude remote sensing networks. Looking back at the development of remote sensing over the past 200 years, from the first Paris photograph taken in 1853, we have to go both up and down, but the speed of going up is much faster than the speed of going down, forming a national three-dimensional network system with low altitude as the core.
Doing low altitude remote sensing, like satellite remote sensing, requires two things:
Firstly, there must be aircraft - remote sensing drones are not consumer grade drones;
Secondly, there are not enough drones. On the ground, we need to establish a mobile communication network and have remote sensing ground base stations. Only in this way can we do a good job.
So a new generation of surveying equipment is about to emerge, which is the intelligent base station for low altitude unmanned aerial vehicle remote sensing that we are talking about. There are various models: multifunctional intelligent, long endurance, mobile, aircraft carrier, and full time domain service system.
With these new equipment, is it in line with our National Development and Reform Commission's proposal last year to "build new types of equipment" in the future industry? This is where we are starting to establish a new type of smart system in our smart city. These are new to those of us who work in cities, but not new to those who work in remote sensing. In the plans of the past five ministries, the Ministry of Science and Technology has been deploying research on low altitude remote sensing.
With the internet, can we guarantee global and full-time flight? It means continuously monitoring our city 24 hours a day, adding street cameras to our city. This is where our smart city suddenly has a low altitude sky eye today - from devices to application software, to industry solutions. In this, today we will jointly build the low altitude three-dimensional sky eye of the city:
Firstly, there should be a network with 15 square kilometers as the basic unit to monitor the city; With this network, there will be a large smart center in the back that can manage thousands of aircraft in the city, achieving stable and safe construction of the city on time, as needed, and as required.
On this basis, there is a massive amount of data. As Academician Li Deren just mentioned, we have a very large data processing center. Are there any possibilities? The new surveying and mapping system in China recently is called the Remote Sensing Big Data Factory. Our surveying and mapping bureau has a 200000 strong army and four major surveying and mapping bureaus. I said that in the future, we will have the largest remote sensing big data factory in the country.
With these, the data can help us with urban functional management and law enforcement. For example, where are the city buildings we see every day, from individual buildings to comprehensive ones; After having the device, it is possible to check for any violations and manage them in real-time; Help us with the 3D design and planning of the city. Just now Academician Li said it's very expensive, but with the low altitude remote sensing network, it's not that expensive. At most, it can be done at 3000 to 5000 per square kilometer.
It is precisely because of this that our low altitude remote sensing network's imagination is to build a low altitude holographic map of the city, combining the "one map" of our country (a map of natural resources and planning) into the low altitude holographic map system of the city we are talking about today. I believe that with this big data, we will definitely push our smart city to a new stage.
Within the next 5 years:
We still have 300 million people going from rural areas to cities;
We still need to build 220 cities;
If we want to increase the total GDP, it can be about five times.
This year is the 18th China Smart City Conference, and in fact, smart cities are a great cause that all of us present are striving for. Here lies the innovation and entrepreneurship of new technologies, the enormous adaptability and innovation capabilities of cities, and the location of every beautiful life for humanity in the future. I hope our smart cities can help boost the low altitude economy, which will take urban development to new heights.
