Abstract
The technology of sensor, pervasive computing, and intelligent information processing is widely used in Body Sensor Networks (BSNs), which are a branch of wireless sensor networks (WSNs). BSNs are playing an increasingly important role in the fields of medical treatment, social welfare and sports, and are changing the way humans use computers. Existing surveys have placed emphasis on the concept and architecture of BSNs, signal acquisition, context-aware sensing, and system technology, while this paper will focus on sensor, data fusion, and network communication. And we will introduce the research status of BSNs, the analysis of hotspots, and future development trends, the discussion of major challenges and technical problems facing currently. The typical research projects and practical application of BSNs are introduced as well. BSNs are progressing along the direction of multi-technology integration and intelligence. Although there are still many problems, the future of BSNs is fundamentally promising, profoundly changing the human-machine relationships and improving the quality of people's lives.
Highlights
As important public network applications, Body Sensor Networks (BSNs) applications are in great demand in medical care [1,2,3], sports and entertainment [4,5,6], the military-industrial sector [7], and the social public field [8,9,10], and BSNs have gradually become a research hotspot
Type 3 is placed surrounding people, and can be used to recognize behaviors and collect information about the surroundings, such as visual sensors. According to their automatic adjustment ability, sensors in BSNs can be divided into two categories: self-adapting sensors, which can automatically adjust processing method, order, and parameters, boundary conditions or constraints according to data characteristics, make themselves adapt to the statistical distribution and structural characteristics of the measured data, in order to get the best treatment effect
BSNs, arranging sensors in, on and around the human body, realizes the detection of human action and physiological information, which has been widely used in the fields of health care, social welfare, sports, entertainment, etc
Summary
As important public network applications, BSN applications are in great demand in medical care [1,2,3], sports and entertainment [4,5,6], the military-industrial sector [7], and the social public field [8,9,10], and BSNs have gradually become a research hotspot. BSNs are a kind of WSN which is formed by physiological parameter sensors placed in the human body, on the body surface or around the body The main techniques it covers are sensors, data fusion, and network communication. It is a new type of universal health care, disease monitoring, and prevention solution, and an important component of the so-called Internet of Things. In the aspects of network communication, research mainly focuses on the problems of network topology design [29], channel characterization [30], channel access control [31,32], routing algorithm design [33], and lightweight communication protocols design, etc These key technologies must be considered when building a complete BSN system. They are of great research value, and of important practical value
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