



Smart sensors can help the elderly in place
Smart sensors can help the elderly in place
After living at home for many years, becoming the center of memory with friends and family, even if the daily work becomes more difficult, few elderly people are willing to uproot. In a study by the American Association of Retired persons, more than 85% of respondents over 65 said they wanted to stay at home as long as possible. However, nearly two-tenths of seven out of ten Americans claimed that they felt difficult to live independently or could not complete their daily work without the help of caregivers or community resources.
Compare different touch screen controllers and touch screen light switch panel from Heisener. Request a real-time quote with competitive prices.The Internet of Things is a network of connected devices embedded with sensors and represents a breakthrough that can help seniors maintain independence. There are many emerging IoT applications that can help seniors stay healthy and safe, but there is little involvement of caregivers. As the population ages, these innovations become more and more important: The US Census predicts that by 2030, one in five Americans will be 65 or older.
The sensor is getting smaller and more cautious, and it can help track older people ’s intake of drugs and water by automatically reordering their favorite groceries and cleaning supplies, monitor their houses, and even save them from going out Time to travel.
Drug compliance
One of the most pressing problems that IoT technology can solve is monitoring the drug consumption of the elderly. For caregivers and medical professionals, drug compliance is a huge challenge. patients who do not take their medicines on time (or at all) not only risk their health, but can also place a heavy burden on the health care system.
According to the 2014 Risk Management and Healthcare policy report, non-compliant drugs cost the healthcare system US $ 10 to 300 billion annually. Reasons for violations include forgetting to take medication or forgetting to take medication in time, or refusing to take medication due to refusal of illness or avoiding side effects.
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Variation characteristics of potentiometer resistance
Variation characteristics of potentiometer resistance
The characteristic of resistance change refers to the relationship between the resistance of the potentiometer and the length of the movable contact or the angle of rotation of the rotating shaft, that is, the characteristic of the resistance output function. There are three commonly used resistance change characteristics.
Straight line type (X type): With the change of the moving corner position, its resistance value changes close to a straight line. Exponential formula (Z type): The change of the potentiometer resistance has an exponential relationship with the change of the dynamic angle position.
The resistance change of the linear potentiometer has a linear relationship with the rotation angle. When the conductive material on the resistor is evenly distributed, the resistance per unit length is approximately equal. It is suitable for occasions requiring uniform adjustment (such as voltage divider).
In the exponential potentiometer, due to the uneven distribution of conductive substances on the resistor body, when the potentiometer starts to rotate, the resistance value changes slowly, and when the rotation angle increases, the resistance value changes steeply. The permissible power per unit area of ??the exponential potentiometer is unequal, and the end with a small resistance change is allowed to withstand a larger power. It is commonly used in volume adjustment circuits because the human ear is most sensitive to the loudness of the sound. When the volume reaches a certain level, the hearing of the human ear gradually becomes dull. Therefore, the volume adjustment generally uses an exponential potentiometer, so that the sound changes seem stable and comfortable.
In the logarithmic potentiometer, due to the uneven distribution of the conductive material on the resistor, the resistance changes rapidly when the potentiometer starts to rotate. When the rotation angle increases, the resistance changes when it approaches the end with the larger resistance Relatively slow. Logarithmic potentiometers are suitable for electronic circuits that are contrary to the requirements of exponential potentiometers, such as contrast control circuits and tone control circuits for televisions.
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