The wearable devices currently on the market are diverse and have a close relationship with sensing technology. Looking back on the development of human information technology, the manager of the computer age and communication era is currently entering the “perception eraâ€. The development of sensing technology is changing with each passing day. The demand for wearable smart devices represented by smart phones and so on is also exploding.
1 Introduction to sensors in wearable smart devices
1.1 Sport sensor
Motion sensors include: gyroscopes, accelerometers, pressure sensors, and magnetometers. Mainly used in equipment such as wristbands, their overall main function is to complete motion monitoring, navigation and human-computer interaction in smart devices. By recording and analyzing human activity anywhere, anytime with a motion sensor, users can know the number of steps they are running, the distance they ride, the time spent sleeping, and the energy consumption.
1.2 Biosensor
The biosensor includes a blood glucose sensor, a blood pressure sensor, an electrocardiographic sensor, a body temperature sensor, a brain wave sensor, a myoelectric sensor, and the like. Mainly used in medical electronic equipment, such as Kangkang sphygmomanometer, using human body signals collected by biosensors, through signal processing to complete health warning and disease monitoring functions. With these medical smart devices, doctors can improve their diagnostics and their families can communicate better with patients.
1.3 Environmental Sensor
Environmental sensors include temperature and humidity sensors, ultraviolet sensors, particulate matter sensors, gas sensors, pH sensors, air pressure sensors, etc., which can be used in PM2.5 portable detectors, AirWaves masks, portable personal integrated environmental monitoring terminals, etc. Environmental monitoring, weather forecasts and health reminders.
In fact, we are often in some environment that is harmful to health, such as air pollution, water pollution, light pollution, extreme weather, electromagnetic radiation, etc. What is even more terrifying is that we are often in such an environment without knowing it, not taking it. Effective defense measures have caused various chronic diseases for a long time, so environmental sensors have huge market development potential and application value.
1.4 Alternative sensors
Alternative sensors are mainly electronic skin, smart contact lenses and pH capsules. The electronic skin embeds the sensor in a film that is smaller than the diameter of the human hair and then placed in a polyester liner to monitor the patient's heart rate, body temperature, muscle activity and brain waves, and release heat to help the wound heal.
2 wearable smart devices for animals
By wearing smart devices for animals, people can better understand the animal's intentions, make it easier for people and animals to communicate, and more easily manage animals.
The dog pedometer can monitor the amount of exercise of the dog and carry out health management. If the number of steps is large, the dog is in good health. Otherwise, the dog may be sick and seek medical advice.
The Poultry Flu Monitor integrates accelerometers, thermistors and wireless transmission modules. The equipment is still in the promotion stage, and it is believed that in the near future, the equipment will be everywhere in poultry farms.
3 Analysis of the needs of wearable smart devices in the health field
Health is closely related to genes, lifestyles and living conditions. Genes are genetic factors that we cannot change; lifestyles and living environments can be changed, and wearable smart devices can monitor and alert users to avoid harmful environments or take appropriate defenses in harmful environments. Improve human health and improve people's quality of life.
Wearable devices have huge demands in China's health care sector:
(1) China has gradually entered an aging society, and the rise in labor costs is the basis for the huge demand for wearable devices in China's health care sector.
(2) Due to the accelerated pace of life, people's unhealthy living habits lead to chronic diseases, resulting in large demand.
(3) China has a large population base, and the status quo of medical difficulties and medical difficulties is difficult to achieve. Personalized health management through wearable devices, reducing the number of medical treatments can alleviate this situation.
(4) In recent years, China's environmental pollution is serious, and environmentally-friendly smart wearable smart devices have great development potential and practical significance.
4 Market Overview and Prospects
The internationally renowned survey agency Visiongain pointed out that in the next five years, the development of the wearable market will lead a new round of explosive growth of related technology companies, just like the development of smart phones and tablets in recent years. The income prospects of these companies are also very optimistic. . In addition to Google, Apple, and Samsung, Acer, Intel, Microsoft, and LG have all tested this area. By 2017, the annual sales of wearable smart devices will increase from 15 million to 70 million.
From the current development situation, the market is close to the tipping point. The emerging smart wearable device provides users with more imagination space, meets the user's "portability" demand, and is likely to become the next generation of mainstream electronic terminal products.
5 Development issues and recommendations
In order to enter the fast-growing channel, the wearable device needs to solve the following three problems: (1) The battery miniaturization technology needs to be upgraded, and the process of information interaction is energy-intensive. It is necessary to ensure that the device is charged once and the working time is long enough; 2) The application service should be innovative and practical, and have a good sense of experience; (3) to meet the user's expectations of the smart wearable device, the functional application and the user's regular needs fit more.
6 Conclusion
The wearable smart device consists of five modules: processor and memory, power supply, wireless communication, sensors, and actuators. Among them, the sensor is the innovation element in the five modules, the "core" of human-to-material communication, and the door to the "perception era". Thanks to the evolution of the sensor, it is beneficial to achieve more accurate data monitoring and better use of monitoring equipment. In the future, as long as the innovation of sensor technology continues, it is believed that the market capacity of wearable devices cannot be estimated.
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