If you have the experience of being admitted to the hospital, or even if you are only seeing patients lying in the ICU ward in a dog blood TV series, then you should be full of pipes and various data lines. You should be familiar. We have been looking for a way to simplify the connection of such devices, making it easier to monitor the vital signs of patients. Previously, we wanted to use the Internet of Things to communicate using bands like Bluetooth, zigbee, but these occupied the public frequency band. When the device becomes a lot, the communication will collide. Medical device using Li-Fi communication A recent research team from South Korea proposed to use Li-Fi as a wireless communication medium to reduce wired connectivity between devices and to avoid electromagnetic interference between devices. The team designed the system to use the visible light band as the communication medium, which is what we call Li-Fi technology. In the communication range of about half a meter, they can read the patient's vital signs data monitored by the electroencephalograph (EEG). . This type of communication is more friendly and convenient than traditional connections and other communications being developed (especially when you think about going to the toilet, you may not need to insert a catheter). Yeon Ho Chung from Busan University in Busan is one of the system designers, and the related paper is published in the IEEE Sensors Journal. EEG is a device for monitoring the activity level of a patient's brain. The signal volume is relatively small, the power is generally 0.5-100 mV, and the frequency is 0.5-45 Hz. After the communication module obtains the corresponding value through the EEG, it needs to amplify these signals, so as to drive the RGB (red, green, blue) primary color optical components of the LED tube in Li-Fi, and then transmit the signal. Currently only a single channel is used for communication, but bit errors occur on certain data strings. To this end, they designed a dedicated filter element for each primary color (RGB). In this way each individual illuminator can more accurately match the corresponding data bit (0/1). It is important to reduce the bit error rate because the degree of EEG is still important to the doctor. We have to further reduce the bit error rate. Other researchers at the university designed equipment to transmit ECG degrees, and Chung will use this technology to transmit electrooculography, which, as the name suggests, records the patient's eye movements. Cooperate with the patient's manipulation of electronic devices. The extensive use of wireless communication technology in the medical field can release patients connected by layers of wires and catheters. After all, for some patients, proper activities are good for rehabilitation, and it is very uncomfortable to lie down and move. In hospitals, especially in the inpatient department, a large number of patients need to use a lot of equipment, using visible light transmission, the signal decays quickly, and the crosstalk between different wards can be further reduced. In addition, the speed of laser Li-Fi can now reach 100Gbps, so there is no need to worry about traffic. Scientists all over the world are working to reduce the limitations of Li-Fi use, and in the near future, except in your hands now. A standard unified Li-Fi module is integrated into the remote control and computer equipment. Red Pvc Coated Gloves,Red Coated Industrial Gloves,30Cm Pvc Red Gloves,Red Pvc Fully Coated Gloves JINAN SHANDE SECURITY TECHNOLOGY CO., LTD , https://www.sdsxlb.com
