When it comes to wearable devices, we think of Apple Watches, Google Glass, and Fitbit Bracelets in our minds. However, these wearable devices are still very large, and the human data that can be measured is limited, and they still stay on very basic data. More in-depth data, EEG, EMG, ECG and sweat can not be measured, which limits the health care application of wearable devices, so many people think that the current wearable device is still a look The cool "toy" is not useful.
In this regard, scientists want to define wearable devices in a completely new way. This wearable is a fusion of electronics and biology. It is very light in weight and does not need to be worn on the hands. It is directly like tattoos or stickers. Sticking to the skin, it can measure the richer data of the human body. This wearable device is called "skin electronic", also called "electronic tattoo".
This month, Science published two new breakthroughs on "Skin Electronics", one published in the November 23 issue of Science Translational Medicine, which measures human epidermal electrons in human motion. The item, published in the journal Science Advances on November 16, is capable of measuring electrocardiograms and electromyograms, as well as epidermal electronics that act as a "human-machine interface." Both studies were done under the guidance of the same individual, the internationally renowned flexible electronics expert John Rogers.
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John Rogers
Professor John Rogers received his Ph.D. in physical chemistry from the Massachusetts Institute of Technology (MIT) in 1995, and later served as the head of the Condensed Matter Physics Research Group at Bell Labs. Since 2003, Professor Rogers has been a professor of chemical engineering at the University of Illinois at Urbana-Champaign. Since September this year, he has served as a professor and director of the Biointegrated Electronics Center of Northwestern University.
　　 1. A wearable device capable of measuring the composition of sweat
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Pictured above is the epidermal electron developed by Professor Rogers to measure the composition of sweat during exercise. This beautiful wearable device is very lightweight and soft, with a medical grade acrylic film that is non-irritating to the skin. This material allows the patch to be stable, firm and seamlessly adhered to the skin, even in the hair. It can also be firmly adhered to the covered scalp or where it is very sweaty. It is very powerful, it can monitor the health of the user according to the metabolites and electrolytes in the sweat generated by the user's exercise, and synchronize the data to the smartphone in real time. However, this coin-sized skin patch is disposable and does not require charging itself, and is only effective for a few hours.
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The color of the reagents in the reservoir will change after acting on the sweat.
This skin patch is superimposed by three parts: the first is an adhesive layer that is compatible with the skin to collect sweat. Followed by four separate circular "reservoir", each "reservoir" contains different reagents, representing glucose, chloride, lactate and pH, and when the sweat flows in, it will react with the reagents. A chemical reaction takes place and the "storage" color changes accordingly. Finally, there is a loop antenna that can pass data to the smartphone via NFC (Near Field Communication).
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　　 Analyze and analyze sweat components using a smartphone
The user will install a corresponding APP on the mobile phone. First, use the camera function of the smartphone to perform a "white balance" calibration to determine the light and shadow at this time. After calibration, the discolored "skin patch" was taken. According to the change of the RBG of the reservoir, the glucose, chloride, lactate and pH index in the collected sweat were determined. The researchers said that the unit of pH of 0.5 unit can be reliably measured, 0.2 unit. The concentration of sodium chloride, 0.3 units of lactic acid, and 0.1 unit of glucose, respectively, corresponds to a 1% change in the R channel of the RGB image.
Small Hidden Cam
Mobile video monitoring and alarm system is a set of intelligent system for security to enter the civilian field. This system integrates mobile phone monitoring and mobile phone anti-theft alarm systems. When illegal people break into the restricted area, the system host will immediately call and send SMS or email to the designated users! Users can view the image of the monitoring area with their mobile phones or computers as soon as they receive a phone message.
It eliminates the worries of false alarm of traditional monitoring system and traditional alarm system! The system integrates wireless door magnetic, wireless smoke detector and other wireless alarm accessory information, effectively improving the civilian characteristics of the monitoring system. Shenzhen Kate Technology Co., Ltd. is specialized in mobile video monitoring products. The supporting mobile phone software of this product, namely Kate Guardian, can be linked to mobile text messages or phone calls with video monitoring and home alarm. This product is also a smart home security monitoring anti-theft system: the system is a network but can be completed independently without a computer! The local memory can record video for 24 hours, and you can view and operate all the monitoring images in your home through your Internet phone or computer in other places.
The system has its own wireless alarm module, which can be matched with wireless door magnets, probes, smoke detectors and other wireless alarm trigger devices. When someone breaks into the monitoring defense area, the system will automatically call, send SMS and email to the designated four mobile phone users, and will also generate audible and visual sirens locally. After receiving the alarm call and information, the remote user can view the monitoring picture through the Internet mobile phone or computer, control the camera rotation angle and focus, and deploy and remove the alarm system through the mobile phone, while starting the mobile phone video recording function and handling the alarm. Application prospect Home monitoring
After work or when going out, you can open your computer or mobile phone at any time to view the real-time image of your home, communicate with your family face to face, learn about your family, and take care of your family remotely; When the thief steals while no one is at home, the automatic signal can be sent to the community monitoring center in time, and the residents can be notified by mobile short message, email or telephone. All this can be easily achieved through the home video monitoring system. As early as 2004, the total output value of China's video surveillance industry application market had reached 15.1 billion yuan, an increase of nearly 23% compared with 12.3 billion yuan in 2003, and growing at an annual rate of about 20%. According to the survey of the analysis institution, with the accelerating pace of life, the demand for family users' sense of security is gradually increasing, and the requirements for family monitoring and security are also increasingly mature.
As the video monitoring system plays an important role in protecting security and preventing crime, the growth of personal users' demand for family security will certainly drive the development of residential monitoring system. The demand for video surveillance from ordinary consumer households is becoming an emerging market for video surveillance applications, and is expected to show significant growth in the next few years.
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Small Hidden Cam,Small Size Camera,Secret Video camera, Home Security Mini Camera ,WiFi Mini Camera,A9 Mini Camera
Small Hidden Cam,Small Size Camera,Secret Video camera, Home Security Mini Camera ,Mini Camera WiFi Small size,A9 Mini Camera
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