Derailleur gears are a variable-ratio transmission system commonly used on bicycles, consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another. Although referred to as gears in the bike world, these bicycle gears are technically sprockets since they drive or are driven by a chain, and are not driven by one another. Derailleurs Bicycle Rear Derailleur,Bicycle Front Derailleur,Electric Bicycle Derailleur,Mountain Bike Derailleur Hangzhou Datasports Equipment Co.,Ltd(Oembicycle) , https://www.oembicycle.com
Shenyang: Promoting Smart Cities on the Basis of Digital Cities Recently, Shenyang has been listed as an innovative pilot city of the country. Academician Li Deren pointed out that digital cities have achieved remarkable results in Shenyang. “Engineers of Wuhan University have formed a map for Shenyang Planning and Land Resources Bureau and are now moving toward an open platform. This achievement has won two gold prizes for geographic information and a Shenyang Science and Technology Progress Award.â€
So, what is the difference between a digital city and a smart city? Academician Li Deren metaphorically figures that when a pupil turns on a computer, he can find his country, his hometown, his house, and the digital city from the earth. The smart city is not satisfied with the Internet. It is a space where the virtual reality is combined. In this space, “Scholar does not go out and can do things in the world.†If you say that digital cities can only be seen, then smart cities can take various actions. . Therefore, the digital city is moving towards a smart city and is a problem that can solve social security and intelligent operation. "Smart cities must be done. It is not our Chinese people who do it. The whole world is doing it," Academician Li Deren pointed out.
In the city's underground pipe network, add sensors to form a sensor network, monitor the state of gas operation through the sensor network, and monitor the state of the power running. By combining them, you can collect the city's operational data. With this operational data, you can Helping with the handling of emergencies can be a resource mobilization process. This is a 863 project supported by the Ministry of Science and Technology.
Academician Li Deren pointed out: “The application of smart cities is a growth point for economic development after China’s economic transformation.†To sum up, there are five main reasons for promoting the construction of smart cities. First, smart cities are based on digital cities. Second, smart cities have broad prospects for economic restructuring and development. The third point is that the realization of smart cities requires better advanced infrastructure. The government must be responsible for the construction of infrastructure in order to ensure its good use and affordability. China now needs to grasp the land network and catch Skynet to use the Internet. better. Fourth, the big data problem in smart cities brings new opportunities and challenges. The Chinese should seize this opportunity to research and develop. This is what Shenyang and Wuhan should be listed as innovative cities. The fifth point is that smart cities are the main tasks of city managers.
“So, I hope Shenyang will do a good job in the application of the 'Smart City,' and it will advance the development of Shenyang by grasping this matter.†Academician Li Deren suggested.
Guangdong: Promoting the construction and integration of smart cities in the Pearl River Delta Region Smart cities are known as the first emerging industries in the 21st century. In the wave of national smart city construction, Guangdong took the lead: among the 277 pilot smart cities that have been announced in the country, Guangdong has 11 seats; the drafting of the national smart city construction standards first came from Lecong Town in Shunde; the Guangdong Provincial Government made a clear plan. In 2020, the world-class smart city cluster in the Pearl River Delta will be completed.
In terms of the integration of information infrastructure, by improving the basic measures for urban broadband networks, building a three-dimensional network of municipal administration, and building a public support platform for information infrastructure, by 2017, 9.5 million fiber access users will be achieved, and provincial-level e-government Network Internet exports reach the stage of 5000Mbps.
In promoting the integration of public service platforms, through the construction of an e-government information resource sharing platform, an internet of things and logistics service platform, an integrated smart transportation service platform, a geospatial information service platform, an industrial cloud service platform, and a comprehensive enterprise data platform As well as commanding 7 platforms, such as the urban and rural spatial information service platform, by 2015, gradually realize the "seven in one" public service platform docking and data sharing; by 2020, all types of urban public service platform to achieve integration docking.
In terms of information network integration, it promotes the integration of online service applications, social credit systems and market supervision systems, human resources and social security information services, education and family planning services, smart community construction and applications, and digital archive information services. An integrated application, by 2015, the implementation of smart applications such as social credit, market supervision, medical and health care, social security, and archives review will continue to deepen, and the online processing rate of administrative examination and approval items in the cities of the Pearl River Delta will reach over 90%, and social affairs will be handled online. The rate reached more than 80%.
In April 2015, Guangdong Province issued the "Guangdong Province Work Plan for Promoting the Healthy Development of Smart Cities (2015-2017)". The "Program" clearly defined the following tasks and division of labor: the Provincial Development and Reform Commission incorporated smart city planning into the overall planning and deployment of the province. The provincial Economic and Information Technology Commission coordinated and coordinated the development of smart cities and took the lead in implementing the projects of "Broadband Guangdong," "Optical Network Cities," "Three Networks Integration," and "Common Basic Information Sharing," and promoting the construction of a spatio-temporal information cloud platform for smart cities. With applications, various bureaus instructed regions to promote the development and application of intelligent applications in this area. Tianjin: Launched five major actions and 34 special projects. In July 2015, Tianjin issued “Action Plan for Promoting Smart City Construction in Tianjin (2015-2017) †It is proposed that we will build a smart service platform for the citizens of the city and form a digital social service system covering urban and rural areas in the fields of education and culture, medical and health care, social security, environmental protection, and travel and public services, so that the Tianjin public can obtain basic public services. More convenient, timely and efficient.
The "Action Plan" clearly stated that five major actions will be launched, and 34 construction special projects will be implemented. By 2017, the overall framework of "Smart Tianjin" will be basically established, and Tianjin smart city construction will be fully promoted.
The five actions are as follows:
Huimin's service facilitation application actions will promote the implementation of key special projects such as smart medical care, smart social security, smart education, smart tourism, smart communities, smart urban areas, and smart rural areas, so as to promote the sharing of smart living applications.
Fine-tune urban management operations, implement key projects such as smart urban management, smart emergency, smart environmental protection, smart security supervision, urbanization supervision and informatization, food and drug safety and public safety management informatization, and promote the development of a new generation of information technology in urban construction and management. Depth application.
The intelligentization of urban infrastructure will be promoted, and key projects such as broadband Tianjin, triple play, intelligent transportation, smart grid, smart water, and smart ports will be promoted to comprehensively upgrade the level of urban infrastructure services.
The high-tech development of the smart economy will vigorously nurture a new generation of information technology industries such as the Internet of Things, cloud computing, and big data, accelerate the development of modern service industries such as smart logistics, Internet finance, and e-commerce, actively develop smart agriculture, and promote the high-end development of the urban economy.
Network information security guarantees, improve the network security management mechanism, and ensure that the city's information security guarantees are synchronized with the construction of smart cities, and that the city's information security is generally controllable.
It is planned that by 2017, a smart application system for urban residents will basically be completed. In the fields of education and culture, medical and health care, social security, environmental protection, and travel and other public services, a digital social service system covering urban and rural areas will be formed. Public access to basic public services is more convenient, timely and efficient. A number of smart communities, smart parks, and smart districts with obvious demonstration effects have been built.
Modern front and rear Derailleurs typically consist of a moveable chain-guide that is operated remotely by a Bowden cable attached to a shifter mounted on the down tube, handlebar stem, or handlebar. When a rider operates the lever while pedalling, the change in cable tension moves the chain-guide from side to side, "derailing" the chain onto different sprockets.
[China Instrument Network Industry Focus] At present, China's urban industrial development model is transforming from processing and manufacturing as the main body to modern service industries, emerging industries, and intelligent industries. The construction of smart cities will accelerate the in-depth application of next-generation information technologies such as the Internet of Things and mobile Internet in various areas of urban economic development, and will greatly promote the networked sharing, intensive integration, collaborative development, and efficient use of urban information resources.