Since the opening of the Expo Park for more than three months, the operation has been smooth and orderly, and the service support for various venues has been running smoothly. Behind the safe and smooth operation of the entire park, a number of new information technologies with independent intellectual property rights such as “electronic fenceâ€, “electronic noseâ€, and broadband wireless communication technology were used for the first time at the Shanghai World Expo, saving a lot of security police resources. . Wang Hao, an academician of the Shanghai Institute of Microsystem and Information Technology of the Chinese Academy of Sciences, said that in the previous World Expo, some sensor network technologies were also used, some in the Internet of Things and some in RFID technology, but such large-scale use of information technology was the first Times.
In the Shanghai Expo site, wireless digital sensor technology has been applied from the ground fence to underground buried devices. The “Electronic Fence†developed by the Shanghai Institute of Microsystems and Information Technology is protecting the entire Expo site and provides three-dimensional detection for the safe and smooth operation of the World Expo. Wang Hao said that the application of wireless digital sensor technology integrates a variety of intrusion technologies, intelligently distinguishes intentional or unintentional intrusions, and implements functions such as early warning and tracking to a certain extent, effectively preventing the destruction of fences from entering the Expo area.
The electronic fence in the Expo Site is not particularly special on the surface, but there are many security facilities inside it: various sensors constantly sense and identify various intrusions. For example, the leaves that are blown by the wind, or the unintentional touch of tourists, or malicious intrusion, can be distinguished one by one; low-altitude parabolic detectors can detect the invasion of low-altitude parabolic; other sensors buried in the ground to listen to excavation Sound to prevent underground invasion.
“The World Expo will have a long period and the area of ​​the park is large. If security personnel alone are required to carry out maintenance, it is not enough.†Wang Xiao said that with wireless digital sensor technology, it is equivalent to building an “invisible wall†for the Expo.
“The Internet of Things will change the future of mankind.†The World Expo has applied a large number of Internet of Things technologies. Wang Hao believes that wireless digital sensor technology will promote the third wave of information technology into the industry. "Now the content of the Internet of Things is still very limited. In the future, it will be able to transmit a lot of information through various sensors and various information collection systems."
The auxiliary security work for the Shanghai World Expo is also the broadband wireless communication emergency equipment. It is also the first time that it has appeared at the World Expo. The broadband wireless communication emergency system has a wide coverage and can adapt to different environments. Wang Hao said that even if the equipment is in a barren land, it can set up a communication network with a coverage area of ​​several square kilometers in one to two hours. The throughput of a single base station can reach 60 trillion, and it can support high-speed movement. The two-way voice and video data transmission can provide rich multimedia services. Many security personnel inside and outside the Expo venues use this advanced equipment to maintain contact and weave a World Expo safety net to improve the quality of safety and security work.
Everything started at the World Expo. “Technology is an important display method at the World Expo. Many scientific and technological achievements will inevitably penetrate into the lives of ordinary people in the future,†Wang Xi said.
In the Shanghai Expo site, wireless digital sensor technology has been applied from the ground fence to underground buried devices. The “Electronic Fence†developed by the Shanghai Institute of Microsystems and Information Technology is protecting the entire Expo site and provides three-dimensional detection for the safe and smooth operation of the World Expo. Wang Hao said that the application of wireless digital sensor technology integrates a variety of intrusion technologies, intelligently distinguishes intentional or unintentional intrusions, and implements functions such as early warning and tracking to a certain extent, effectively preventing the destruction of fences from entering the Expo area.
The electronic fence in the Expo Site is not particularly special on the surface, but there are many security facilities inside it: various sensors constantly sense and identify various intrusions. For example, the leaves that are blown by the wind, or the unintentional touch of tourists, or malicious intrusion, can be distinguished one by one; low-altitude parabolic detectors can detect the invasion of low-altitude parabolic; other sensors buried in the ground to listen to excavation Sound to prevent underground invasion.
“The World Expo will have a long period and the area of ​​the park is large. If security personnel alone are required to carry out maintenance, it is not enough.†Wang Xiao said that with wireless digital sensor technology, it is equivalent to building an “invisible wall†for the Expo.
“The Internet of Things will change the future of mankind.†The World Expo has applied a large number of Internet of Things technologies. Wang Hao believes that wireless digital sensor technology will promote the third wave of information technology into the industry. "Now the content of the Internet of Things is still very limited. In the future, it will be able to transmit a lot of information through various sensors and various information collection systems."
The auxiliary security work for the Shanghai World Expo is also the broadband wireless communication emergency equipment. It is also the first time that it has appeared at the World Expo. The broadband wireless communication emergency system has a wide coverage and can adapt to different environments. Wang Hao said that even if the equipment is in a barren land, it can set up a communication network with a coverage area of ​​several square kilometers in one to two hours. The throughput of a single base station can reach 60 trillion, and it can support high-speed movement. The two-way voice and video data transmission can provide rich multimedia services. Many security personnel inside and outside the Expo venues use this advanced equipment to maintain contact and weave a World Expo safety net to improve the quality of safety and security work.
Everything started at the World Expo. “Technology is an important display method at the World Expo. Many scientific and technological achievements will inevitably penetrate into the lives of ordinary people in the future,†Wang Xi said.
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