With the continuous development of human society, the future city will carry more and more people. At present, China is in the period of accelerating urbanization, and the problem of “urban diseases†in some areas is becoming increasingly serious. In order to solve the urban development problem and realize the sustainable development of the city, building a smart city has become an irreversible historical trend of urban development in today's world.
What is a smart city?With the continuous development of information technology, the level of application of urban information technology has been continuously improved, and the construction of smart cities has emerged. Building a smart city is of great significance in realizing sustainable urban development, leading the application of information technology, and improving the overall competitiveness of cities.
At present, there is no uniform definition of smart cities in the industry. However, the primary criterion for smart cities is to maximize the management, operation and service level of urban resources, enhance the competitiveness of the city's future development, and provide high-quality living for those living in cities.
The currently widely recognized smart cities emphasize the use of next-generation information and communication technologies such as the Internet of Things, cloud computing, and big data to meet the needs of urban government management and services, the survival and development of enterprises, and the production and living needs of residents. At the core, realize efficient, intelligent and refined management, operation and service in all areas of the city, especially to strengthen the integration of core systems such as government affairs, transportation, communication, water and energy, reduce energy consumption, and realize urban infrastructure and The intelligence of the operation.
Smart City is a fusion of real world and digital world based on digital cities, Internet of Things and cloud computing to realize the perception, control and intelligent services for people and things. Perception is the function of digital city. Control and intelligent service are the advanced stage of wisdom. Smart city has broad prospects for economic transformation and development, urban function management and intelligent service to the public, which makes people and nature more harmonious.
Philadelphia has installed BigBelly solar-powered trash cans since 2008. They initially installed 470 units and increased year by year, increasing to 900 units in 2011.
The BigBelly solar trash can weighs 128 centimeters and weighs about 136 grams. It can compress and store up to five times its volume of waste. The energy is completely taken from solar energy and does not consume excess power. The device periodically compresses the trash at a power equivalent to 567 kilograms until its capacity is saturated, and automatically sends an alert when the trash is full. The traditional trash cans in town streets and city parks need to be cleaned twice a day, while the BigBelly solar trash can only be cleaned once a week, the capacity is five times that of ordinary trash cans, and the number of garbage trucks required to consign garbage is reduced to 1/ 5. It not only reduces the fuel consumption of garbage trucks, but also reduces the amount of carbide emissions during transportation.
Philadelphia claims that it can save $800,000 a year because of the use of such trash cans.
Although some people think through cost-benefit analysis that installing solar waste bins is not cost-effective, the cost per city is different. You should do a personalized cost-benefit analysis based on your city. You may find that installing a few smart bins in a crowded area may yield the greatest return on investment, such as shopping centers, fast food stalls, and entertainment venues. Or away from the heart of the city, such as parks and beaches. .
These smart trash can alert the operator when they are full, so it's best to try out the project where the trash can is always full or overflowing. The cost per trash can is about $4,000, so you can buy less at the trial stage to reduce costs.
Of course, BigBelly is not the only smart waste management device. Pittsburgh is preparing to purchase 500 smart trash cans for a total value of $580,000, which is equivalent to $1,160 each. In the past, Pittsburgh needed hundreds of thousands of hours to inspect 1,200 trash cans. Initially, a staff member spent about 83 hours a year checking empty trash cans. Assuming a staff member's hourly wage is about $19, each smart trash can save $1,577 a year.
These smart trash can seem to be less attractive every year, but lower upfront costs and easy-to-install smart trash can be the best entry point for smart cities. Now you can open your experiment plan with 10 smart trash cans, then evaluate the different trash cans and choose the smart trash can that is right for you.
Almost all of Los Angeles is illuminated by smart street lights, and 80% of the 210,000 street lights have been replaced with smart LED lighting. They save $9 million in energy costs each year and there are many other added benefits.
Since the grid load can be reduced, there is enough redundant grid capacity to build an electric vehicle charging station; the intelligent street light pole with 4G LTE technology is currently being installed, thereby expanding the coverage of the cell.
Intelligent street lights have other functions, such as automatic alarms when smart street lights fail, can become WIFI hotspots, can install security cameras, and can also install solar panels to save more energy. While each additional feature adds cost, it is valuable to have a one-time, comprehensive upgrade to the lighting.
The break-even point is calculated based on the $57 million installation cost of the entire Los Angeles Smart Street Light Project. Since the installation of smart LED lights in 2008, the cost of LED lights has dropped by half, so the breakeven point in 2017 is expected to be shorter.
Smart streetlights are easy to deploy in one block. It is expected to install 10 street lights in a small pilot program. The minimum cost per lamp is $100, and a total of $1,500 (including installation costs) is required. Los Angeles currently uses Philips Smart Lights and the CityTouch platform.
3, smart parking meterParking is a very tricky thing for some people, and parking is a very important issue for everyone. If you can solve some parking problems, it is a good thing for drivers and law enforcement personnel. In addition, it can increase government revenue.
Portland, Oregon, installed 7,000 smart parking devices between 2002 and 2005, increasing parking revenue by more than $2 million. Smart parking devices are not only able to support credit card payments, but are becoming smarter.
The smart parking meter can detect when the vehicle leaves the parking space, and can also send an alarm message to the user's mobile phone when the user's parking time is about to expire, and the mobile phone parking APP application can inform the driver in real time where there is an empty parking space.
Although drivers are certainly not willing to pay higher parking fees, those who are often fined for illegal parking may use the system because the saved parking fines can offset the additional parking costs.
But let's not forget that the real purpose of these smart parking devices is to make parking more fair and equitable, and to improve urban services by increasing fiscal revenue, and installing smart parking meters can help achieve these goals. If 10 smart parking devices are installed for project pilots, the initial investment cost is approximately $15,000.
With the continuous deepening of China's urbanization process, along with the many dividends brought about by urban development, a series of "urban diseases" such as environmental pollution, traffic congestion, energy shortage, and urban security are also a headache. So how can this contradiction be solved?
At the 2017 China Silk Expo Huawei ICT Silk Road Changan Forum, Hong Xiaozhou, the chief expert of Huawei Smart City, explained the new model of “new smart city ecological development†for us. Building a smart city, transforming the way of urban development and improving the quality of urban development are gradually becoming the consensus of the whole society. Building a new smart city will not only enhance the city's influence, but also serve as a sword to alleviate urban diseases.
Hong Xiaozhou said that the smart city has experienced nearly a decade of development. From 2008, led by enterprises, IBM put forward the concept of “Smart Earthâ€; in 2013, the Ministry of Housing and Construction led the first batch of 90 smart cities to launch pilot projects, followed by the Ministry of Science and Technology, the National Development and Reform Commission and other ministries and commissions to start pilot projects; State-led, unified standards, and gradually landed; at the end of 2015, the “New Inter-Ministerial Coordination Working Group on Smart City Construction†was established to clearly promote the construction of new smart cities. It is based on the reality of China’s informationization and new urbanization development, and to improve urban management. The service level and the major decisions made to promote the scientific development of the city are the positive practices for implementing the new industrialization, informationization, urbanization, agricultural modernization and green development. At this point, the construction of a new smart city has clearly become a national strategy.
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