Design Of Pathological Tissue Process Control System

Pathological tissue sample preparation is a physical process, which involves chemicalsolution react with biological samples. Including tissue fixation, dehydration, transparent,dipped wax process. The principle is to use paraffin tissue processing within the organizationto replace the moisture, keep the original structure and information. Once the tissue embeddedin paraffin, it is in a steady state, can be sliced on the slicer. The quality and speed ofpathological tissue process has very important implications for disease diagnosis and rapiddiagnosis, therefore, it is very necessary to design a processing system can be automated tofacilitate rapid tissue. The subject comes from engineering, a cross-cutting issues in biological,medical, mechanical and electronic,Studies involving embedded systems, histopathology,sensor technology, electronic technology and computer technology intersect knowledgeintegration. After accessing to large amounts of data, learned more about the theoretical basisof the required circuit design,constructed with STM32F103for the next bit machinepathological tissue process control system. This article explains in detail the system circuitdesign, software programming and functional testing. Innovatively studied the system designof many key technologies.First, The abstract of this paper analyzes the clear purpose and significance of thisresearch, careful understanding of the pathological tissue processing history, currentdevelopment, trends. Then made a detailed presentation for he question pathologicalprocess. This paper analyzes the actual application requirements, system design todetermine the work to be carried out.Second, This paper introduces the basic steps pathological process, analyzes the basicprinciple of pathology tissue processing system. It also briefly describes the circuit structureand pathology workflow processing system, and pathological tissue processing systemrelative to the general pathology workstation has the advantage.Third, this section briefly describes the various components of the system. System is based on the Cortex-M3STMicroelectronics (STMicroelectronics, ST) of32high-performance microcontrollers STM32F103RB for the next bit machine mastercontroller. Lower machine and PC configuration software via RS485buscommunication,achieve more from a major topologies. the temperature sensor used bySystem is PT100thermocouple sensor, level detection with integrated infraredreceiver,motors using DC motors. Temperature sensors, level sensors, motor, control chip,peripheral circuits together to complete the communication function of temperatureacquisition and implementation.Fourth, design of system hardware circuit. This section details the hardware design ofeach part, including design of temperature regulation circuit, design of Reagent supplyemission control circuit, design of liquid level measurement and control circuit.Fifth, the modular design of the system software introduced.This section includesuCOS-II real-time operating system migration,communication protocols freeModBustransplant, temperature acquisition subsystem program flow regulation, reagent supplysubsystem program flow discharge, level measurement control program flow subsystem.Sixth, the results of the testing and process control systems throughout thehistopathological analysis. Including testing analog circuit, communications test systemsand configuration software, A/D acquisition digital filtering algorithm testing,eachsubsystem functions to achieve the test.At last, summary of completed work and put forward ideas to improve the existingproblems. Put forward their own ideas for the next direction for improvement.