Design of Wearable Mobile Monitoring System Based on Smartphone
[Abstract] Objective : To develop a new physiological parameter monitoring system with good mobility, comfort and scalability. Methods: Using wearable technology to achieve low-load acquisition of basic physiological signals, using Bluetooth to achieve short-distance wireless transmission of physiological data, using a smart phone embedded with Windows Mobile operating system to achieve physiological data reception, processing, storage and remote transmission. Results: The wearable mobile monitoring system based on smart phone can achieve low load acquisition of many basic physiological parameters such as ECG, respiration, body temperature and body position/body movement, and has better human-computer interaction interface and mobile monitoring characteristics. Strong. Conclusion: Smartphone can be used as an ideal home medical system development platform. It has the characteristics of strong scalability and convenient development. Wearable mobile monitoring system based on smart phone and Bluetooth technology will play an important role in future health care. 1 Introduction With the advancement of physiological signal detection technology and the increasing demand for health care, users are increasingly demanding the comfort and mobility of physiological parameter monitoring systems. The reform of the medical model, "strategic advancement, shifting the focus", community health care and family health care will play an important role in national health protection. The low-load, long-term, continuous dynamic monitoring technology of basic physiological signals (such as heartbeat, respiration, body temperature, pulse, etc.) is a key technology in family and community medical care. Through the analysis of these signals, rich human health can be obtained. Status information. In the case of ensuring the quality of signal sensing, comfort and mobility determine whether such health monitoring technology can be truly applied to people's daily lives. The acquisition of physiological parameters in low physiological, psychological and even unobtrusive states is at the forefront of today's biomedical engineering. Wearable technology is considered to be one of the effective ways to achieve low-load or even no-load physiological parameter detection/monitoring. Wearable technology (biomedical engineering field) is a low-load life information detection technology that has been developed in recent years. It combines the acquisition of physiological information with the daily wear of people, and acquires people in the form of belts, shirts, shorts, armbands, etc. Life parameters such as breathing, heartbeat, blood pressure, body temperature, body movement, etc. [1-2], appeared a variety of wearable sensors and systems such as AMON, SenseWear, LifeGuard, Smart Shirt, Life Shirt, Smart Vest, Mobihealth. With the development of computer embedded technology, Bluetooth and smart phones have become more and more popular in our daily life. Mobile phone-based applications are increasingly diversified, and smart phones have gradually become a mobile application development platform. A smartphone is a mobile phone that has an open operating system and can support third-party software installation and application. Due to the embedded open operating system (mainly Palm OS, Windows Mobile, Symbian and Linux), the development of the application can be separated from the underlying specific microprocessor and hardware structure, and directly oriented to the operating system programming, which greatly reduces the development difficulty. Applications developed in programming languages ​​such as Java and C# have good cross-platform features that greatly facilitate the development and use of mobile-based applications. Smartphones come standard with Bluetooth modules, which has driven the development of mobile-based short-range wireless applications. Medical systems based on mobile phones and Bluetooth technology have always been a research hotspot in recent years. In recent years, due to the promotion and application of smart phone technology, this field has attracted the attention of many medical manufacturers and research institutions, and various forms of design have appeared. The smart phone-based wearable medical physiological parameter monitoring system proposed in this paper combines wearable technology, Bluetooth technology and smart phone platform technology, in which wearable technology solves the problem of low-load extraction (ie comfort) of signals, while Bluetooth technology And the smart phone solves the technical problem of mobile monitoring. The above fusion represents the development direction of this kind of technology. 2 system structure design The whole system can be divided into three parts according to functions: wearable physiological parameter sensing system, signal acquisition and transmission system, and smart phone system. From the perspective of system composition, it can be divided into two parts: wearable system and smart phone system, in which physiological signal sensing, acquisition and wireless transmission are integrated design, integrated in wearable system, wearable system and smart phone system. Establish a wireless connection between Bluetooth. The system block diagram is shown in Figure 1. Figure 1 System block diagram 2.1 wearable physiological parameter sensing system The wearable physiological parameter sensing system used in this system is shown in Figure 2. The system can realize the load acquisition of multiple parameters such as electrocardiogram, chest breathing, abdominal breathing, body temperature and body position/body movement. After the chest and abdomen breathing exercise has been calibrated, continuous non-invasive measurement of ventilation can be achieved. Figure 2 Wearable Physiological Parameter Sensing System In China, nervous system drugs are also one of the drugs with the most rapid sales growth in recent years. 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With the increasing trend of urbanization and aging, the elderly population in China has exceeded 120 million, and the incidence of geriatric diseases, especially mental diseases, is increasing year by year. With the increase of residents' income, the elderly's requirements for quality of life also increase. As a result, the demand for drugs to treat mental illnesses such as Alzheimer's has soared. In WHO drug classification, psychotropic drugs and nootropic drugs are grouped into one class. We briefly analyzed the development trend of this class of drugs through the clinical drug use data collected from more than 300 domestic key hospitals by Chinese Pharmaceutical Association.
The overall market size of this class of drugs is about 1.22 billion yuan, the consumption sum increased by 5.0% in 2002, but the sales quantity increased by 11.2%. The main reason why the consumption sum did not increase with the sales quantity is that several main varieties of this class of drugs, such as piracetam, cobalt bin amide and ginkgo biloba leaf, etc. In 2002, the price of selling units fell sharply due to bidding. Among these drugs, ginkgo biloba preparation occupies the largest market share, accounting for more than 1/3 of the market share, ganglioside ester and cobalt bin amide combined also occupy nearly 1/3 of the market share, piracetam and other "sitan" drugs occupy nearly 10% of the market share, the rest of the drugs occupy less than 5% of the market share. At present, more than 20 ginkgo leaf production enterprises, piracetam production enterprises more than 70, have entered the stage of price competition, profit repeatedly diluted.
In the first-line varieties, except ginkgo biloba leaves preparation maintained vigorous vitality, the growth of other varieties were weak, especially the traditional variety piracetam suffered from bidding