Medical Electronics Guide: A model based on SPCE061A processor medical training system design (1)

<H2 Class=center> 0 Introduction medical model is the one training system to meet the needs of the majority of medical students designed. .Modern medical Analog technology in its infancy stage, most of the simulation system products from abroad, although for the Sims simulation has some products, but those products are only for simulation of a part, a function to achieve a .simulation, not a complete system integrated all of its functions. . medical model is a simulation training system of human fetal and maternal and child first aid delivery model of intelligent people, is a combination of modern science and technology teaching integrated simulation system. .This product not only meet the teaching needs of obstetrics and gynecology but also meets the first aid skills in medical education teaching requirements. . of Obstetrics and Gynecology is a highly practical and application of clinical disciplines, clinical teaching in obstetrics and gynecology teaching occupies a pivotal position. .Along with social progress and the improvement of medical personnel training requirements, the traditional clinical teaching model has been unable to meet the new situation of obstetrics and gynecology teaching needs. . in clinical medical education, first aid techniques for teaching the important and difficult, especially "man CPR," "heart defibrillator monitor," "trauma care", etc., or in the practice of national examination of medical practitioners .Key skills assessment. .The rescue of critically ill patients must race against time, first-aid work needs to undergo a rigorous clinical training, skilled staff. .However, with a sound legal system, patients and their families self-protection awareness, simply perfect in saving patients trained first aid skills is a very difficult thing, the slightest mistake can easily lead to medical disputes, such as medical aid .unskilled or is not correct, possible medical malpractice, and even cause deaths. .First aid training as clinical resource for far less, while imports were expensive first-aid model, the general institutions rarely purchase. .Thus, the low years of health care workers and medical students is difficult to master the practical first aid skills. . 1 person trained medical model Introduction medical model were trained by the host computer system, software, hardware and lower computer models were composed of three parts. .It can realize self-set case and a complete course of treatment, not only can practice clinical skills training, but also improve the treatment of clinical ability and independent thinking. .The system's PC software is designed with a VC. .NET and openGL combination of design, beautiful interface, easy to operate. .Lower machine uses 16-bit microcontroller Sunplus SPCE061A voice chip, because the processor low price, power consumption, with the voice capabilities, designed to meet the demand for this product. .PC and the next bit machine with a USB connection between the realization of a high-speed, stable communication. . content of PC software systems ranging from basic life support (BLS), Advanced Life Support (ACLS) to continue life support (PLS) of all first-aid points, information collection boxes by switching system, .were made for the model to evaluate the operation of assessment. .Simulation software can own a variety of clinical cases, suitable for different levels of medical training, continuing education and evaluation of integrated system. .The system is divided into lower computer hardware and software design of the upper two parts. .Software is divided into a virtual computer software control interface and monitor. .System block diagram shown in Figure 1. . 2 hardware system design from the function, the hardware model of human information collection system is divided into modules, the system communication module, power module and the fetus .birth control module of four parts, shown in Figure 2. . The system uses 16-bit embedded controller chip as the main controller, the processor is small, .highly integrated, easy to expand, high reliability, low power consumption, compact structure, interrupt handling, and other characteristics, 32 KB embedded flash memory FLASH, high processing speed, the ability to easily perform common microcontroller functions. .The chip integrates ADC , DAC , timer / counters, RAM, FLASH and other devices, combined with the appropriate peripheral chips and supporting the integrated development environment, you can easily complete the 8-way single-channel data acquisition, the sampling frequency .Adjustable: 1 kHz, 5 kHz, 10 kHz, 20 kHz, 50 kHz. .Simulation output rate adjustable: 4μs, 6μs, 8μs, lOμs, with output interrupt; UART serial port through the PC, communications. .Using PDIUSBD12 chip control box and PC USB communication. . 2.1 model of human information acquisition module model of human information acquisition module in two parts, first part is the position sensor information collection, and the second part is the manual CPR .breathing and chest compression technique for the collection of information. . position sensor information collection includes the analog ECG information, the information endotracheal intubation, intravenous administration of analog information, simulated fetal monitor information collection .to simulate blood pressure meter information and analog pulse oxygen saturation information collection. .Real-time scanning sensor master terminal, sensors pick up information after treatment to pass through the host computer communication systems. .Expansion of the system to take the system I / O port or the host controller I / O in parallel and location sensor terminal connected to position sensor information. .Information is taken after the treatment to pass through the master PC. . CPR information collection, because the model simulated human cardiopulmonary way by Air, so the information collected by CPR of the gas pressure sensor manner. .CPR information collection using dual-channel pressure sensor MPX2010, it can provide an accurate and applied directly to a linear voltage output proportional to the pressure, strain gauge type sensor and thin film resistor network integrated on the same silicon chip, using a laser .range correction technology to achieve accurate calibration, zero error correction and temperature compensation, temperature compensation range for the O ~ 85 ℃, a gauge pressure measurement (G, GP) and differential pressure (D, DP) type. .The system uses Operational .Amplifier to the small pressure sensor output voltage signal amplification to the internal microcontroller A / D converter compatible level, the sensor and the microcontroller interface to match. .System software on the sensor output and pressure range of zero to calculate and calibrate the pressure sensor output data processing and then upload to the PC. . 2.2 Communication Module system design of two communication with the host computer is connected (RS 232 serial asynchronous communication and USB communication), to meet user .a variety of requirements. . 2.2.1 RS 232 serial asynchronous communication UART is a widely used serial data transmission protocol. .System host controller provides a standard interface full-duplex UART communication circuit module, for the completion of the main controller and the serial communication between peripherals. .Serial communication to meet certain conditions, such as the computer's serial port is RS232 level, while the microcontroller's serial port is TTL level between the two must have a level conversion circuit, the system uses a special chip to convert MAX3232 .. .A typical serial circuit design shown in Figure 3. . 2.2.2 USB communication .

Medical Electronics Guide

Tuesday, December 14, 2010

A model based on SPCE061A processor medical training system design (1)

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