Research And Development On Watch Client Transmission Transmission System Based On Bluetooth 4.0

With the popularity of smart wearable devices in recent years,this new industry and new product are rapidly entering every aspect of our life.Throughout the entire intelligent wearable device industry,bluetooth 4.0 technology with low power is usually adopted,which is mainly used in the life and health fields such as step memory,blood pressure,body fat and heart rate,etc.,for real-time monitoring of physiological data of our body.These devices generally have very limited battery capacity and require high energy consumption.On the other hand,with more functions and more data on these devices,transmission rate becomes a challenge.Therefore,it is of certain value and practical significance to study the bluetooth transmission system with fast transmission speed and low energy consumption.Currently,the watch transmission system is based on write with response single-packet ACK,with slow transmission speed,high loss rate of transmission and large increase of energy consumption of watch transmission under moving condition.This paper focuses on in-depth research and analysis of bluetooth transmission speed and energy consumption,optimization of transmission speed,optimization of transmission protocol,optimization of transmission timing,optimization of transmission energy consumption and other key issues.The main content includes the following aspects:1.Proposing a new bluetooth transmission protocol: Giving up using the system package based on the write with single packet ACK transmission mechanism of the response,through the custom based on the write without response three layer transport protocol,design a new error checking,flow control,and retransmission mechanism,the transmission speed of 5 to 10 times,but also meet the requirements of the expansion of the bluetooth business functions.2.Proposing the model of transmission control mechanism based on gait: Researching the relationship between the acceleration and bluetooth signal when people on feet,using the accelerometer for users of the gait cycle information,optimize the transmission time,the signal intensity of wave transmission time,reduce energy consumption of equipment,reduce the packet loss rate and the transmission error,improve intelligence wear life of the equipment.3.Developping the watch client transmission system based on bluetooth 4.0: Realizing the watch client transmission system based on the new transmission protocol and gait transmission control mechanism.Through component design,integration with the watch client,testing and analysis of the system,all the expected goals are achieved.How to reduce the energy consumption of bluetooth transmission and improve the transmission speed is the common goal of bluetooth transmission research at home and abroad.This paper studies the deficiency of traditional transmission scheme of bluetooth 4.0,proposes the optimization method of corresponding algorithm,and realizes the watch client transmission system with the help of new transmission protocol and gait transmission control mechanism,which greatly improves the transmission speed and reduces energy consumption.