Application Research Of Electrospun Friction Nano Generator In The Field Of Health Monitoring And Wireless Communication

The recently advocated 5th-generation(5G)communication with nearly zero timedelay has greatly contributed the development of Internet of Things(IoTs),and the development of the IoTs has made electronic devices trend toward miniaturization,mobility and Multifunction.However,due to energy constraints,the maintenance of a large number of devices in the IoTs requires astronomical budgets,such as battery replacement and building power.As a new research field,nano-generator(NG)uses new technologies and efficient nano-materials to collect and store energy in the environment to achieve the sustainable operation of micro-nano systems.Widely used in sensor networks,environmental protection,artificial intelligence and blue energy,and so on.This paper mainly introduces the application of NGs in two fields: flexible wearable self-powered modules and wireless communicationFirstly,a calibration-free self-powered sensor based on a wearable triboelectric nanogenerator(TENG)is introduced.TENGs have attracted much attention due to the high output,low cost,and environmentally friendly nature.However,wearable devices still have certain hardness due to the choice of metal electrode,leading to poor gas permeability,which affects the wearing comfort.In addition,the electrode does not adhere firmly to the friction material,which also affects the electric performance.A TENG base on ordinary fabrics with polymerizes polyaniline(PANI)as electrodes,and uses polycaprolactone(PCL)to make the fabric and friction material fit well.TENG have excellent softness and great gas permeability,improving the comfort of the wearable smart health monitoring.This truly wearable generator can provide a good information interface for critically ill patients.On the one hand,it can monitor the patient's breathing state in real time and give an alarm when the breathing stops.On the other hand,patients with language communication difficulty can also tap the finger to send messages by using Morse code.More importantly,we have experimentally proved that this self-powered sensor can still work normally with additional contact resistance,which will guarantee the long-term reliable operation of this device in a flexible environment.In addition,we mainly introduce infrared wireless communication based on TENG.The era of big data continues to drive the development of the Internet of Things(IoT),which is increasingly demanding wireless communication technology.As a good energy choice for IoT,nanogenerators(NGs)have great application value in thing terminals.However,currently commonly used wireless communication methods have high energy requirements and cannot completely get rid of the battery at the thing terminal.It is proven in this paper that NGs can drive infrared wireless optical communication(IOWC)system well,and complete the self-powered IOWC(SIOWC).Unlike visible light communication,IOWC systems have been proven to be capable of being used in bright environments,so this solution provides a practical application proposal for self-powered thing terminal.Using this system,wireless self-powered sensor has also been designed.In addition,smart rooms based on SIOWC are designed,and NGs directly or indirectly control smart furniture and wisdom gate in the home.The SIOWC provides reliable choice for self-powered communication method for further applications in future smart house basing on IoT technology.