本文選題：全自動(dòng) + 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(biāo)準(zhǔn)不斷提高;同時(shí)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(jī)構(gòu)需要大量的高精度全自動(dòng)加樣器。而我國自動(dòng)化加樣設(shè)備研發(fā)起步較晚,國產(chǎn)全自動(dòng)加樣器較少且性能較差。目前,大醫(yī)院基本都使用國外進(jìn)口全自動(dòng)加樣器,其加樣精準(zhǔn)快速,用戶操作方便,但價(jià)格昂貴;基層醫(yī)院和小型機(jī)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(dòng)加樣器十分必要,具有較大社會(huì)意義和經(jīng)濟(jì)價(jià)值。課題以Altera公司的DE2開發(fā)板為核心控制器,Android手機(jī)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(jìn)電機(jī),設(shè)計(jì)了一種基于FPGA的自動(dòng)加樣器。課題主要工作有硬件電路設(shè)計(jì)、FPGA核心控制器和Android無線遙控器設(shè)計(jì)。其中,核心控制器采用了SOPC嵌入式系統(tǒng)設(shè)計(jì),包括SOPC系統(tǒng)搭建和主控制器軟件設(shè)計(jì)。系統(tǒng)通過電機(jī)控制邏輯模塊和驅(qū)動(dòng)電路實(shí)現(xiàn)步進(jìn)電機(jī)S型調(diào)速控制和細(xì)分驅(qū)動(dòng),使得各機(jī)械臂的運(yùn)動(dòng)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(zhǔn)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(jī)方式實(shí)現(xiàn)系統(tǒng)各部件有序配合完成全自動(dòng)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(yàn)人員遠(yuǎn)離強(qiáng)酸、強(qiáng)堿等腐蝕性或有毒試劑。經(jīng)反復(fù)測試驗(yàn)證可知,自動(dòng)加樣器實(shí)現(xiàn)了儀器自檢、全自動(dòng)加樣、保養(yǎng)清洗、無線遙控與監(jiān)視等功能,電機(jī)運(yùn)動(dòng)平穩(wěn)流暢、液位探測精確、加樣準(zhǔn)確且誤差較小,達(dá)到預(yù)期目標(biāo)。
[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