![]() You just need to be able to draw within the lines of a pre-drawn electrode on a treated piece of paper. “You don’t need to have some piece of multimillion-dollar equipment for fabrication. “We wanted to develop something low-cost that people would understand how to make and use - and you can’t get more accessible than pencil and paper,” Li Yang, professor in the School of Artificial Intelligence at China’s Hebei University of Technology, said in a press release. However, it’s hard to achieve high sensitivity at a lower price point, making these sensors less accessible. The idea of wearable sensors isn’t new - current flexible humidity sensors are a big part of modern health care, used in areas such as respiratory monitoring and skin humidity detection. It is able to provide accurate readings for humidity levels from 5.6 per cent to 90 per cent, researchers say. The sensor can send a signal to a smartphone that would display humidity data on that smartphone’s screen. The paper sensor can be connected to a computer with copper wires and conductive silver paste, or can be hooked up to a tiny lithium battery and used to wirelessly communicate with a smartphone. The copper is used as a conduit for electrical information to travel through, and it is this process that researchers are replicating - except this circuit board is laid out in pencil instead of copper. Printed circuit boards, which are used in computers and other electronic devices, consist of copper lines laid out in specific angular patterns. Researchers explained that the sensor is created by using a pencil to draw on paper treated with a sodium chloride solution.Īs water molecules in the environment around the drawing absorb into the paper and mix with the sodium chloride solution, the solution becomes ionized, creating electrons that flow through the graphite of the pencil markings. “The goal is early prediction for disease conditions and health situations, to spot problems before it is too late.”Ī study published December in the peer-reviewed journal Nano Letters describes how the sensor works and some of the early applications tested by researchers. Memorial Associate Professor of Engineering Science and Mechanics at Penn State and lead author of a new study about the research, said in a press release. “Our team has been focused on developing devices that can capture vital information for human health,” Huanyu “Larry” Cheng, the James L. Researchers believe the sensor could potentially be used in the future to monitor not only for a full diaper, but also for health concerns such as cardiac arrest and pneumonia, or even for switches that don’t require contact. This drawing can send signals to your smartphone, and has already been used by researchers to create a “smart diaper” capable of alerting parents about their baby’s discomfort. have developed a way to monitor humidity and respiration by drawing an image which functions like a circuit board onto pre-treated paper. Researchers at Pennsylvania State University in the U.S. Yuhan-Kimberly said, "Smart baby monitors are the result of innovations that provides convenience to mothers and babysitters and comfort to babies.We may soon be able to detect hydration levels, respiratory changes or a too-wet diaper, all with a new type of sensor - a pencil drawing. Up to 5 people can be registered as guardians. It also monitors the air quality including the temperature, humidity and volatile organic compound, and provides an alarm when air quality is out of the pre-set range, enabling the babysitter to maintain proper air quality for child care. ![]() It tells the feces and urine accurately and in real time so that the diaper can be replaced at the right time. The IoT sensor can be easily attached to the outer surface of the diaper in a non-contact manner. When you download the smartphone application, you can use an alarm service that lets the mother know whether the newborn has pooped or peed, monitor the air quality, adjust the brightness of the nursing lamp and analyze the frequency and pattern of pooping and peeing. Yuhan-Kimberly started Huggies IoT service at its shopping mall, dubbed momQ, this month, in collaboration with MONIT Corp., a Korean developer of smart baby monitors. ![]() The new product, dubbed the MONIT X Huggies Smart Baby Monitor, is based on Internet of Things (IoT) technology.
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