The wireless network will help medical staff monitor patient breathing
In most modern clinics, the patient's breathing is monitored using special equipment, the use of which requires the presence of special tubes in the patient's nose. Such tubes can be seen literally in every film about Western doctors and hospitals. In the film, such an instrument is inserted into the patient's nose almost at the entrance to a medical facility. In practice, it turns out that all this is not very convenient for those whose breathing is being watched. Tubes in the nose do not contribute to proper rest and relaxation. But now, experts have found another way to monitor the patient's breathing - using a weak wireless signal.
Dr. Neil Patvari of the University of Utah tested new equipment related to the use of wireless networks. And it was accidentally discovered that the signal strength periodically changes. It turned out that the frequency of changes in the signal is associated with the period of "inhale-exhale" person in the room. True, it all worked only in certain parts of the room. Without thinking twice, scientists created a test sample of equipment capable of monitoring human breathing.
Here you can make a small digression, and imagine how the same technology is used to track human movements behind closed windows and doors - probably, Dr. Patvari’s equipment after a number of modifications may well be used for other purposes.
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As for medicine, the team led by Patvari has created 20 low-cost wireless devices operating at 2.4 GHz, a frequency familiar to many. Such equipment will not interfere with the operation of other wireless devices, since the signal emitted by the device is a thousand times weaker than that of a laptop's wireless module. The signal strength readings are read 4 times per second, which is fast enough so that the patient’s breathing can be monitored.
After 30 seconds of operation, the equipment allows determining the frequency of human breathing with an accuracy of 0.4 inhalation / exhalation per minute.
According to the creators of the technology, all this will allow patients to rest normally, without the need for wired devices and all kinds of tubes. Patvari believes that this technology can also be used to measure the volume of a person’s lungs. There are also opponents of the new method, who believe that the traditional monitoring of the patient's breathing is quite adequate. Indeed, besides the inhalation / expiration frequency readings, the wire technology also makes it possible to measure the level of carbon dioxide in the air exhaled by the patient, plus a number of measurements are made automatically. Radio waves are unlikely to cope with all this.
But if the technology does not help the doctors, then the military will certainly be interested in all this. Some data obtained by Patvari testify to the possibility of tracking the breath or simply the movement of a person behind a wall / door. And this is much more interesting for the representatives of some authorities (and not only the authorities).
newscientist
Dr. Neil Patvari of the University of Utah tested new equipment related to the use of wireless networks. And it was accidentally discovered that the signal strength periodically changes. It turned out that the frequency of changes in the signal is associated with the period of "inhale-exhale" person in the room. True, it all worked only in certain parts of the room. Without thinking twice, scientists created a test sample of equipment capable of monitoring human breathing.
Here you can make a small digression, and imagine how the same technology is used to track human movements behind closed windows and doors - probably, Dr. Patvari’s equipment after a number of modifications may well be used for other purposes.
')
As for medicine, the team led by Patvari has created 20 low-cost wireless devices operating at 2.4 GHz, a frequency familiar to many. Such equipment will not interfere with the operation of other wireless devices, since the signal emitted by the device is a thousand times weaker than that of a laptop's wireless module. The signal strength readings are read 4 times per second, which is fast enough so that the patient’s breathing can be monitored.
After 30 seconds of operation, the equipment allows determining the frequency of human breathing with an accuracy of 0.4 inhalation / exhalation per minute.
According to the creators of the technology, all this will allow patients to rest normally, without the need for wired devices and all kinds of tubes. Patvari believes that this technology can also be used to measure the volume of a person’s lungs. There are also opponents of the new method, who believe that the traditional monitoring of the patient's breathing is quite adequate. Indeed, besides the inhalation / expiration frequency readings, the wire technology also makes it possible to measure the level of carbon dioxide in the air exhaled by the patient, plus a number of measurements are made automatically. Radio waves are unlikely to cope with all this.
But if the technology does not help the doctors, then the military will certainly be interested in all this. Some data obtained by Patvari testify to the possibility of tracking the breath or simply the movement of a person behind a wall / door. And this is much more interesting for the representatives of some authorities (and not only the authorities).
newscientist
Source: https://habr.com/ru/post/129391/
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