本文選題：全自動 + 加樣器��； 參考：《重慶大學(xué)》2015年碩士論文

【摘要】：近年來,生化檢測和醫(yī)藥生產(chǎn)標準不斷提高;同時人們對醫(yī)療資源和服務(wù)的需求越來越大。醫(yī)院、醫(yī)藥研制和監(jiān)管單位等機構(gòu)需要大量的高精度全自動加樣器。而我國自動化加樣設(shè)備研發(fā)起步較晚,國產(chǎn)全自動加樣器較少且性能較差。目前,大醫(yī)院基本都使用國外進口全自動加樣器,其加樣精準快速,用戶操作方便,但價格昂貴;基層醫(yī)院和小型機構(gòu)大多仍使用手工加樣工具或儀器。因此,研制一套低成本、高可靠性、高性能且操作簡單的自動加樣器十分必要,具有較大社會意義和經(jīng)濟價值。課題以Altera公司的DE2開發(fā)板為核心控制器,Android手機為無線遙控端,結(jié)合液位傳感器和位置傳感器,合理有序控制泵閥和各步進電機,設(shè)計了一種基于FPGA的自動加樣器。課題主要工作有硬件電路設(shè)計、FPGA核心控制器和Android無線遙控器設(shè)計。其中,核心控制器采用了SOPC嵌入式系統(tǒng)設(shè)計,包括SOPC系統(tǒng)搭建和主控制器軟件設(shè)計。系統(tǒng)通過電機控制邏輯模塊和驅(qū)動電路實現(xiàn)步進電機S型調(diào)速控制和細分驅(qū)動,使得各機械臂的運動快速平穩(wěn);系統(tǒng)采用電容式液位探測方法,通過液位探測邏輯模塊和探測電路處理液位傳感器信號,可精準探測到液位,防止加樣針空吸或扎入試劑太深而引起污染;Nios II主控制軟件采用狀態(tài)機方式實現(xiàn)系統(tǒng)各部件有序配合完成全自動工作;Android控制軟件操作簡單,用戶可無線遙控和監(jiān)視加樣器,使研究者和檢驗人員遠離強酸、強堿等腐蝕性或有毒試劑。經(jīng)反復(fù)測試驗證可知,自動加樣器實現(xiàn)了儀器自檢、全自動加樣、保養(yǎng)清洗、無線遙控與監(jiān)視等功能,電機運動平穩(wěn)流暢、液位探測精確、加樣準確且誤差較小,達到預(yù)期目標。
[Abstract]:In recent years, biochemical testing and pharmaceutical production standards have been improved, at the same time, the demand for medical resources and services is increasing. Hospitals, pharmaceutical development and regulatory institutions need a large number of high-precision automatic samplers. However, the research and development of automatic sampling equipment in our country started late, and the domestic automatic samplers are less and the performance is poor. At present, large hospitals basically use imported automatic samplers, which are accurate, rapid, easy to operate, but expensive. Most primary hospitals and small institutions still use manual sampling tools or instruments. Therefore, it is necessary to develop a set of automatic sampler with low cost, high reliability, high performance and simple operation, which is of great social significance and economic value. Taking the DE2 development board of Altera company as the core controller and the mobile phone as the wireless remote control terminal, combining the liquid level sensor and the position sensor, the pump valve and every step motor are controlled reasonably and orderly, and a kind of automatic sampler based on FPGA is designed. The main work includes hardware circuit design, FPGA core controller and Android wireless remote controller design. Among them, the core controller adopts SOPC embedded system design, including SOPC system construction and main controller software design. The system realizes the step motor s speed regulation control and subdivision drive by motor control logic module and drive circuit, which makes the movement of each manipulator fast and stable. The system adopts capacitive liquid level detection method. The liquid level can be accurately detected by processing the liquid level sensor signal through the liquid level detection logic module and detection circuit. The main control software of Nios II uses state machine to realize the automatic operation of all parts of the system. The Android control software is easy to operate, and users can control and monitor the sampler wirelessly. Keep researchers and inspectors away from corrosive or toxic reagents such as strong acids and bases. After repeated test and verification, the automatic sampler realizes the functions of instrument self-test, automatic sampling, maintenance and cleaning, wireless remote control and monitoring. The motor moves smoothly and smoothly, the liquid level detection is accurate, the sample addition is accurate and the error is small. Achieve the desired goal.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TH789

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本文編號：1956069