With the rapid development of China's "wireless city" construction, the widespread use of wireless networks has made it possible to monitor more than just computers. As long as there are wireless signals, mobile phones can do so, and video surveillance gradually enters a wireless era.
The wireless city is to achieve wireless network coverage and services throughout the city, providing access to anytime, anywhere, and faster wireless networks. Wireless broadband networks, computers, smart phones, etc. no longer need to connect network cables to achieve networking; In addition, wireless broadband networks cover a wide range, not only confined to a room, a building, but as the mobile phone signal, covering the entire city . Users can watch TV, play online games, video chat on mobile phones, use mobile phones to participate in video conferences, home digital networks, wireless transmission of large documents such as documents and photos, wireless network hard disks, mobile e-mail, and so on.
Wireless City Development Status:
foreign
In 2004, when the Grand City of Michigan in the United States first took the concept of “wireless cityâ€, this trend blew from the United States in Washington, Philadelphia, New York, Paris in France, London in the United Kingdom, and Amsterdam in the Netherlands. , Singapore ... has swept the world since then.
domestic
In July 2008, at the 36th event of the China Internet Society Blue Ocean Salon (the subject: mobile Internet business is ready), wireless city experts and Zhuang Yuxin, an expert advisor to the Beijing Municipal People's Government, revealed that there are already ten major cities in mainland China that have defined wireless. The city plan is under construction.
The top ten cities are: Beijing, Tianjin, Qingdao, Wuhan, Shanghai, Nanjing, Hangzhou, Guangzhou, Shenzhen, and Yangzhou. Zhuang Xin is called “a number of representative wireless citiesâ€. In reality, more cities in China, such as Nanjing, Hong Kong and Taipei, are implementing wireless coverage.
WiFi WiMAX mode will become mainstream
WiFi
(Wireless LAN) Advantages
WiFi
The existing PHS base stations, CDMA base stations and 3G base stations of telecom operators can be used to install wireless broadband network equipment and provide power access and fiber landing, and connect with 3G subscriber data of major carriers. Because the cost is far smaller than other 3G systems, it is necessary to use WiFi to build a wireless network that covers the entire city. WiFi can achieve a transmission speed of over 50M, while the Internet can reach about 1M, and the actual speed can reach 300K or more.
WiMax
(Wireless Metropolitan Area Network) Advantages
WiMax
The wireless signal transmission distance of 50 kilometers can be achieved, and the network coverage area is 10 times that of the 3G transmission tower. As long as a small number of base stations are constructed, the entire city can be covered. The maximum access speed that WiMax can provide is 70M, which is 30 times the broadband speed that 3G can provide. WiMax can connect WiFi hotspots to the Internet, and it can also be used as a wireless extension of DSL and other wired access methods to achieve the last mile of broadband access.
WiFi
WiMax mode advantage
WiMax
In the wireless backbone network, it is used to aggregate the traffic of each area, and is connected to the wired network; WiFi is in the wireless access layer to complete the terminal-to-network access and the jump of wireless data in a small area. The wireless broadband network based on WiFi WiMax technology has the advantages of high bandwidth, low cost, flexibility and convenience.
domestic
Applications:
Shanghai
In January 2008, Shanghai Jiading Wireless City Cooperation Signing and Construction Launching Ceremony was held. This is the first wireless city plan signed by the government in the Mainland of China. The project is divided into three phases. It adopts the combination of WiFi WiMax and the deployment of wireless networks from the key urban areas. The wireless network coverage of the entire Jiading will be realized in early 2010, and 200 to 300 WiFi base stations will be built. In April of the same year, China Telecom Shanghai Company stated that it has signed a framework agreement with Shanghai Yangpu District Government to jointly promote the construction of “Wireless City†in Yangpu District, which is part of Shanghai’s promotion of wireless cities.
Beijing
In June 2008, the “Wireless City of Beijing†used the WiFi WiMax technology, which is also the signal coverage method commonly adopted in the construction of wireless cities in China. The Beijing information service platform has been fully realized. People can access the Internet free of charge anywhere in the city through the Wireless City Plan. However, the so-called "free Internet access" refers only to the free use of the public during the Olympic Games; after the Olympic Games, it implements a charging policy and there are four kinds of charging standards: 20 yuan for a one-day unlimited internet card, 60 yuan for a 5-day unlimited internet card, and 80 Yuan unlimited monthly card and charge 0.12 yuan per minute, the rate of wireless Internet users will not be less than 512Kpbs.
Wireless monitoring includes wireless monitoring terminals and front-end two types. The wireless monitoring terminal also includes various forms such as vehicle equipment, handheld equipment, and individual equipment. Among them, the most common is a mobile phone. The user can see real-time images and alarm videos of all monitoring front-ends through the mobile phone. With the rapid development of wireless cities in China, the combination of wireless networks and wireless monitoring technologies and multimedia technologies will lead video surveillance to a new era, a wireless era.
The wireless city is to achieve wireless network coverage and services throughout the city, providing access to anytime, anywhere, and faster wireless networks. Wireless broadband networks, computers, smart phones, etc. no longer need to connect network cables to achieve networking; In addition, wireless broadband networks cover a wide range, not only confined to a room, a building, but as the mobile phone signal, covering the entire city . Users can watch TV, play online games, video chat on mobile phones, use mobile phones to participate in video conferences, home digital networks, wireless transmission of large documents such as documents and photos, wireless network hard disks, mobile e-mail, and so on.
Wireless City Development Status:
foreign
In 2004, when the Grand City of Michigan in the United States first took the concept of “wireless cityâ€, this trend blew from the United States in Washington, Philadelphia, New York, Paris in France, London in the United Kingdom, and Amsterdam in the Netherlands. , Singapore ... has swept the world since then.
domestic
In July 2008, at the 36th event of the China Internet Society Blue Ocean Salon (the subject: mobile Internet business is ready), wireless city experts and Zhuang Yuxin, an expert advisor to the Beijing Municipal People's Government, revealed that there are already ten major cities in mainland China that have defined wireless. The city plan is under construction.
The top ten cities are: Beijing, Tianjin, Qingdao, Wuhan, Shanghai, Nanjing, Hangzhou, Guangzhou, Shenzhen, and Yangzhou. Zhuang Xin is called “a number of representative wireless citiesâ€. In reality, more cities in China, such as Nanjing, Hong Kong and Taipei, are implementing wireless coverage.
WiFi WiMAX mode will become mainstream
WiFi
(Wireless LAN) Advantages
WiFi
The existing PHS base stations, CDMA base stations and 3G base stations of telecom operators can be used to install wireless broadband network equipment and provide power access and fiber landing, and connect with 3G subscriber data of major carriers. Because the cost is far smaller than other 3G systems, it is necessary to use WiFi to build a wireless network that covers the entire city. WiFi can achieve a transmission speed of over 50M, while the Internet can reach about 1M, and the actual speed can reach 300K or more.
WiMax
(Wireless Metropolitan Area Network) Advantages
WiMax
The wireless signal transmission distance of 50 kilometers can be achieved, and the network coverage area is 10 times that of the 3G transmission tower. As long as a small number of base stations are constructed, the entire city can be covered. The maximum access speed that WiMax can provide is 70M, which is 30 times the broadband speed that 3G can provide. WiMax can connect WiFi hotspots to the Internet, and it can also be used as a wireless extension of DSL and other wired access methods to achieve the last mile of broadband access.
WiFi
WiMax mode advantage
WiMax
In the wireless backbone network, it is used to aggregate the traffic of each area, and is connected to the wired network; WiFi is in the wireless access layer to complete the terminal-to-network access and the jump of wireless data in a small area. The wireless broadband network based on WiFi WiMax technology has the advantages of high bandwidth, low cost, flexibility and convenience.
domestic
Applications:
Shanghai
In January 2008, Shanghai Jiading Wireless City Cooperation Signing and Construction Launching Ceremony was held. This is the first wireless city plan signed by the government in the Mainland of China. The project is divided into three phases. It adopts the combination of WiFi WiMax and the deployment of wireless networks from the key urban areas. The wireless network coverage of the entire Jiading will be realized in early 2010, and 200 to 300 WiFi base stations will be built. In April of the same year, China Telecom Shanghai Company stated that it has signed a framework agreement with Shanghai Yangpu District Government to jointly promote the construction of “Wireless City†in Yangpu District, which is part of Shanghai’s promotion of wireless cities.
Beijing
In June 2008, the “Wireless City of Beijing†used the WiFi WiMax technology, which is also the signal coverage method commonly adopted in the construction of wireless cities in China. The Beijing information service platform has been fully realized. People can access the Internet free of charge anywhere in the city through the Wireless City Plan. However, the so-called "free Internet access" refers only to the free use of the public during the Olympic Games; after the Olympic Games, it implements a charging policy and there are four kinds of charging standards: 20 yuan for a one-day unlimited internet card, 60 yuan for a 5-day unlimited internet card, and 80 Yuan unlimited monthly card and charge 0.12 yuan per minute, the rate of wireless Internet users will not be less than 512Kpbs.
Wireless monitoring includes wireless monitoring terminals and front-end two types. The wireless monitoring terminal also includes various forms such as vehicle equipment, handheld equipment, and individual equipment. Among them, the most common is a mobile phone. The user can see real-time images and alarm videos of all monitoring front-ends through the mobile phone. With the rapid development of wireless cities in China, the combination of wireless networks and wireless monitoring technologies and multimedia technologies will lead video surveillance to a new era, a wireless era.