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If row upon row of skyscrapers make the city “grow taller”, and the construction of surrounding satellite cities has made the city “bigger”; then, with the deep advancement of urban informatization and the realization of the construction goal of “digital city”, the city Will be “smarter” like never before.
The concept of “digital city” is now deeply rooted in the hearts of the people, and ordinary urban citizens also know that the city of the future will be a “digital city”. However, if you want to get a deeper understanding of the rich connotations of “digital city”, only an authoritative person can give a detailed and accurate answer.
“Digital city” includes all aspects of urban informatization-through broadband metropolitan area network, broadband access network, geographic information system and other infrastructure platforms, integrate the city’s economic, social, humanistic, technological, and educational information resources to establish E-commerce, e-government, science and technology information networks, labor and social security information systems, etc., through the development of information appliances, online education, telemedicine, and building informatized communities, the capital’s national economy and social life will be fully informatized and the city will be built Into a modern international metropolis.
The “digital city” covers all aspects of smart transportation, e-tourism, smart libraries, smart inspections, smart museums, and so on. Let’s explain the digital city—smart city from the following aspects.
one, smart transportation
The traffic system is a complex and comprehensive system. It is difficult to solve traffic problems from the perspective of roads or vehicles alone. Vehicles and roads must be considered comprehensively. In the context of this demand, intelligent transportation, which organically combines information technology, electronic communication technology, automatic control technology, computer technology, and network technology, has emerged, which can monitor traffic conditions in real time, accurately and efficiently.
RFID technology has a variety of applications in the field of traffic supervision, such as highway toll systems, vehicle license information management, and mobile/fixed inspection systems. It can record detailed vehicle information and driving routes and whether it exceeds the scope of operation. It can also be used RFID technology counts the traffic flow, provides accurate traffic flow data at the entrance and exit stations (ports) of vehicles and ships, provides an accurate basis for traffic planning, so as to ensure the smoothness and order of roads and waterways. RFID intelligent traffic supervision has the advantages of waterproof, anti-magnetic, high temperature resistance, long service life, long-distance identification, fast reading speed, large amount of information collection and storage, accurate data, adjustment according to environmental changes, and low cost. The disadvantage is that the RFID tag needs to be permanently fixed to the appropriate position of the car body and the hull (such as the windshield of a car). The early labeling work requires a lot of time and energy; due to the characteristics of RFID technology, its accuracy is To a certain extent, it will be affected by the environment (temperature, humidity, metal attachments, etc.).
Traffic detection
The working principle of RFID intelligent traffic management is very simple. During the working process of the system, the reader first sends the encrypted data carrier signal to the RFID car tag through the antenna. The working area of the tag’s transmitting antenna is activated, and at the same time the encrypted target identification code is carried. The high-frequency encrypted carrier signal is transmitted by a high-frequency transmitter module in the card using a certain modulation method. The receiving antenna receives the carrier signal from the radio frequency card. After receiving and processing by the card reader, the target identification code is extracted and sent to the computer. Complete the preset system functions and automatic identification, and realize the automatic management of the target.
In the RFID intelligent traffic management system, the RFID tag can be installed on the dashboard of the car, and can be used on the first-level highway without slowing down or stopping. After testing in certain provinces in China, the data transmission rate of the RFID intelligent traffic management system can reach 300 kilobits per second, and the tag moving speed (vehicle speed) can reach 300 km/h. The card reader is directly installed at each station or intersection with heavy traffic, and transmitted to the public transportation information center through the mobile GSM network using GPRS or SMS communication. In order to avoid possible radial interference when multiple buses pass near the platform or intersection at the same time, causing phase shift and affecting the reception of the signal by the antenna, consider burying the antenna in the ground at some platforms and locations with heavy traffic.
No parking fee
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Cities that use the RFID system to implement annual fee charging management all issue a passive passive electronic tag that cannot be removed and its ID number cannot be modified for each “annual fee vehicle”. As the only identity mark of the vehicle. The realization of “annual fee car”, one car and one card, thus completely plugging the loopholes in the leakage of annual fee through the “card deck” method, ensuring both strict supervision and smooth traffic. On this basis, the road and bridge management department can also obtain a high percentage of cost increases. In a certain coastal city, more than 100,000 to 200,000 passive electronic tags used as “annual fee cards” have been issued. They have been running smoothly for several years, and the economic and social benefits are very obvious. The promotion and use of large labels is much higher than the circulation of certain highways with very heavy traffic.
Taxi ID Dynamic Automatic Recognition System
The supervision method has much in common with the identification management of the above-mentioned annual fee vehicles. Every taxi with a legal identity is issued with a unique non-tamperable RFID tag that can prove its identity. This system has been promoted in Guangzhou and Chengdu. The use has played an obvious social and economic benefit. In cities where RFID-based annual fee management has been promoted, the dynamic automatic identification system of taxi identity can also be applied as a derivative subsystem of the annual fee management system.
In cities that have adopted the “local annual fee vehicle identification and monitoring system” and have conditions to install cards on all vehicles, the system can also be extended to apply to the collection of vehicle road maintenance fees and annual Review, transportation management, and other areas that need to share vehicle electronic label media, build an intelligent transportation system management platform that shares a dynamic information resource database, and on this basis, it can also be smoothly extended to government agencies, enterprises, institutions, public parking lots, and residents. The access control management of the community provides strong technical support for the dynamic monitoring and management of the security field related to vehicles.
2. E-tourism
Tourism is the fastest growing industry in the world today, and it is also the most influential industry chain in the world today. The network service terminal system of the “Digital Tourism Promotion System” allows tourists not only to check the destinations of all parts of the country without leaving their homes. You can also watch the dynamic video of the destination landscape online, and complete the reservation of hotels, restaurants and other leisure and entertainment venues through Internet phone free of charge.
“Choose tourist routes and book hotels through the Internet; pay directly with the card, and you can also participate in interactive games in the scenic spot on your mobile phone.” You can play the entire scenic spot with one card. “You can also rely on the received barcode and QR code. Enjoy the discount”. According to reports, the program has been designed with intelligent tourism in six aspects: travel, housing, shopping, food, transportation, and entertainment.
According to the first phase of the design plan, there are two magical “cards”: one is a card that can be directly embedded in mobile phone users, similar to a mobile phone card, tourists can directly enjoy various network services and payments as long as they bring their mobile phones; the other is One is the “travel card”, which is currently more of a paid function.
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