According to studies in the United States, the use of wireless transmitter receivers, using wireless tomography (RTI) technology, can "see through" people and objects moving behind and behind genzong solid walls, while genzong people do not need to use radio frequency identification tags. This wireless The network system can be used in police stations and fire brigades, as well as in the rescue of hostages, fire-stricken people, etc. It is reported that they conduct research in indoor atriums and tree-covered grasslands. Research summary and test results will be published soon. On the IEEE Transactions on Mobile Computing, when radio waves pass through the human body or other objects, RF signal strength can be measured by RTI technology. This is very similar to medical CT scans. CT scans use X-rays to form The human body image. Researcher Patwari said that this wireless system is different from the Wi-Fi network that connects home computers. It is a Zigbee network. ZigBee is a new type of low-power, low-cost, short-range wireless communication technology.
In the early experiments, the researchers used 28 wireless transmitters to wrap around the atrium to form a square. There was also a similar wireless network in the lawn. In the atrium, the squares were 14 feet long with 8 equal distances on each side. Distribution of wireless transmitter receivers. The lawn area is 21 feet long and there are also eight equally spaced radio transmitters on each side. These radio transmitter receivers are placed on a 4 foot high plastic tube making platform for genzong to The torso part of the human body. Then, let one person walk in the test area and test the resulting wireless signal strength data displayed on the computer screen to form a bird-like pattern. This is the “image†of the human body.
The researchers then improved the experimental method, which can genzong the human body behind the solid wall. This experiment was held at the home of the researcher Patwari in Salt Lake City. When another researcher Wilson walked in the house The successful genzong of the wireless network system arrived at Wilson. This research result has been published on arXiv.org.
Researchers say that RTI technology is more advantageous than optical and infrared imaging technology because it can penetrate walls, trees, and smoke. RTI can also work in dark environments. Moreover, radio waves generated in the system emit radiation more than normal. The phone is 500 times smaller, so it will not harm the human body.
The research is applying for a patent on this wireless network system. It is reported that this research has been funded by the National Science Foundation (NationalScienceFoundation).
In the early experiments, the researchers used 28 wireless transmitters to wrap around the atrium to form a square. There was also a similar wireless network in the lawn. In the atrium, the squares were 14 feet long with 8 equal distances on each side. Distribution of wireless transmitter receivers. The lawn area is 21 feet long and there are also eight equally spaced radio transmitters on each side. These radio transmitter receivers are placed on a 4 foot high plastic tube making platform for genzong to The torso part of the human body. Then, let one person walk in the test area and test the resulting wireless signal strength data displayed on the computer screen to form a bird-like pattern. This is the “image†of the human body.
The researchers then improved the experimental method, which can genzong the human body behind the solid wall. This experiment was held at the home of the researcher Patwari in Salt Lake City. When another researcher Wilson walked in the house The successful genzong of the wireless network system arrived at Wilson. This research result has been published on arXiv.org.
Researchers say that RTI technology is more advantageous than optical and infrared imaging technology because it can penetrate walls, trees, and smoke. RTI can also work in dark environments. Moreover, radio waves generated in the system emit radiation more than normal. The phone is 500 times smaller, so it will not harm the human body.
The research is applying for a patent on this wireless network system. It is reported that this research has been funded by the National Science Foundation (NationalScienceFoundation).