本文選題：MQTT協議 + 姿態(tài)識別��； 參考：《山東大學》2017年碩士論文

【摘要】：近年來,隨著信息技術的發(fā)展,越來越多的IT技術和方案進入醫(yī)療健康領域,促進了智慧醫(yī)療的發(fā)展。作為智慧醫(yī)療的一個分支,人體姿態(tài)識別系統逐漸受到研究者的重視,發(fā)展前景日益廣闊。盡管人體姿態(tài)識別系統發(fā)展迅速,但是其仍然存在一些不足。一方面,以往的姿態(tài)識別系統重在對姿態(tài)識別算法的研究,對系統可靠性、實用性、擴展性重視不足。另一方面,信息采集終端處理能力和通信環(huán)境也制約了姿態(tài)識別系統的發(fā)展和應用。MQTT(Message Queuing Telemetry Transport,MQTT)協議是一種簡單、輕量的數據傳輸協議,該協議能在確�？煽啃院鸵欢ǔ潭鹊谋ＷC交付的基礎上盡量減少對網絡帶寬和設備資源的需求,非常適用于受限的移動設備和嵌入式設備,已經被廣泛應用于物聯網產品中�；诖�,本文設計實現了基于MQTT協議的人體姿態(tài)識別系統。首先,分析了系統的功能需求,設計了系統的總體結構,隨后根據本系統的要求和特點,設計了數據交互方案,然后分別實現了數據信息采集終端和服務器,最后對系統功能進行了詳細的測試。本文的主要工作如下:(1)在分析傳統姿態(tài)識別系統兩層結構模型不足的基礎上,提出了"數據據信息采集終端——服務器——客戶端"的三層結構模型,明確了數據信息采集終端采集數據獲取姿態(tài)信息、服務器接收并轉發(fā)姿態(tài)信息和多個客戶端接收并顯示姿態(tài)信息的任務分配,解耦了數據信息采集終端和客戶端,提高了系統的實用性、可擴展性。(2)通過觀察分析老年人姿態(tài)特點,實現了一種簡潔靈活的老年人姿態(tài)識別算法,既保證對老人姿態(tài)的準確識別,同時又兼顧算法復雜度、設備耗電量等問題,減少了對設備資源的需求和依賴。(3)為保證數據的實時、可靠傳輸,在分析多種數據傳輸方案優(yōu)缺點的基礎上,提出了數據鏈路層采用 GPRS(General Packet Radio Service,GPRS)、應用層采用MQTT協議的數據交互方案,并進行了詳盡的數據交互方案設計,包括MQTT協議消息主題設計和通信流程設計等。另外,還引入了數據加密協議,保證了數據交互過程中的安全。(4)結合姿態(tài)識別算法、數據傳輸方案的要求,并綜合考慮系統各方面的需求和系統設計原則,以系統總體設計方案中對各功能模塊的劃分為基礎,對數據信息采集終端和服務器各功能模塊進行了詳細的設計與開發(fā),得到了最終的遠程姿態(tài)識別系統。通過一系列黑盒測試,對系統各部分功能進行了細致的測試,確定其滿足了本文提出的要求,實現了系統設計的功能。
[Abstract]:In recent years, with the development of information technology, IT technology and solutions more and more into the field of health care, and promote the development of medical wisdom. As a branch of medical wisdom, the human body posture recognition system more and more researchers increasingly broad prospects for development. As the human gesture recognition system is developing rapidly, but it still there are some shortcomings. On the one hand, focusing on the posture recognition system of previous studies on gesture recognition algorithm, the system reliability, practicability, scalability lack of attention. On the other hand, the information acquisition terminal processing ability and communication environment also restricts the development and application of.MQTT attitude recognition system (Message Queuing Telemetry Transport MQTT) protocol is a simple, lightweight data transfer protocol, this protocol can ensure the reliability and the degree of guarantee delivery based on minimizing the bandwidth and The equipment resource demand, very suitable for constrained mobile devices and embedded devices, has been widely used in networking products. Based on this, this paper presents the design and implementation of human posture recognition system based on MQTT protocol. First, analyzed the functional requirements of the system, design the overall structure of the system, then according to the system the characteristics and requirements, designed a data exchange scheme, and then realizes the data acquisition terminal and server, and then the system function with the test. The main work of this paper are as follows: (1) based on analyzing the shortcomings of traditional gesture recognition system two layer structure model, proposed the data according to the three layer structure model of information acquisition terminal server - client ", the data acquisition terminal data acquisition server receives and forwards attitude information, attitude information and multiple clients connected Collect and display tasks pose information, decoupling data information acquisition terminal and client, improve the practicality of the system, scalability. (2) through the observation and analysis of the attitude characteristics of the elderly, to achieve a simple and flexible elderly gesture recognition algorithm can ensure accurate identification of the old attitude, at the same time taking into account the complexity of the algorithm, the power consumption of equipment, reduce the equipment resource demand and dependence. (3) to ensure the data real-time, reliable transmission, based on analyzing the advantages and disadvantages of various data transmission scheme, the data link layer using GPRS (General Packet Radio Service, GPRS), data exchange program the MQTT protocol is used in the application layer, and designed a data exchange scheme in detail, including the MQTT protocol message topic design and communication process design. In addition, also introduces the data encryption protocol, ensure data interaction In the process of safety. (4) combined with gesture recognition algorithm, data transmission scheme, and considering the design requirements and the system principle of the system, the overall design of the system in the division of each function module is based on data acquisition terminal and server of each function module is designed and developed in detail the remote, posture recognition system. Finally through a series of black box testing, functional parts of the system carried out a detailed test, determined to meet the requirements, realize the function of system design.

【學位授予單位】：山東大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：R318;TP274

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本文編號：1733596