If you want to find a restaurant or hotel near you, you can use the map APP on your mobile phone, whether it is Google, AutoNavi or Baidu Maps, by using the global positioning satellite system near the earth, these APPs can let you quickly find The location of your favorite restaurant, and tells you how far it is, how long it takes to walk or take various transportation, and the transportation information you need can be found in it.
Based on the same principle, in fact, such GPS positioning technology also completely affects the human body. Recently, the research and development personnel of MIT’s Computer Science and Artificial Intelligence Laboratory, Dr. Dina Katabi and his team have developed a model called ReMix The human body GPS positioning system, through this wireless technology, locates various functions inside the human body, and can play a great role in searching for tumors and cancer cells.
In contrast, the current medical human detection methods are extremely invasive, requiring surgical implantation of sensors on the body or allowing the patient to swallow a sensor monitoring camera from the larynx, which is not only expensive to implement, but also unsatisfactory. Through the ReMix positioning system, it is like implanting a high-performance in-vivo monitoring device into the patient’s body to track various abnormal conditions in the human body in real time. If the position of the patient’s tumor is determined, it can also send back information in real time The condition of the tumor, and provide corresponding physiotherapy improvement programs.
The implementation of this function is very similar to the global GPS positioning system, but of course global positioning satellites will not be used. In order to test this ReMix system, the researchers placed some animal cell tissues in a transparent container and used the system to mark a virtual Then they attacked the tumor, and they found that the marker itself can also act as a reflector to transmit the radio signal back without the need for a power supply.
However, this technology also has a huge problem. The problem lies in the skin of the human body. Although human skin can efficiently bounce signals from inside the human body, according to MIT's findings, the strength of these bounced signals from the skin is higher than that of researchers. The detected strength is 100 million times stronger. It is extremely difficult to analyze such high-intensity signals. The ReMix system has a great advantage. They can separate the signal from the marker from this bounced signal. , So as to achieve rapid and efficient human positioning monitoring.
In the first test, the R&D staff found that the positioning effect of the ReMix marker can reach 1.4 cm. If you want to compare with the real-world GPS system, the current positioning level that ReMix can reach can only reach the city range on the positioning map, and it cannot reach a certain location The degree of individual buildings, so the accuracy level is currently not up to the height required for practical applications. According to industry insiders, the error range must be close to millimeters in order to be reliably applied in the field of clinical medicine.
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