CAJ | 학술논문

温度采集系统以STM32F103VET6芯片为核心控制芯片，应用该芯片的定时器功能、串口功能、I2 C 接口等完成该温度采集系统的数据采集，数据处理、误差控制、数据上报等功能。该芯片具有功耗小，集成度高，稳定可靠等特点，是温度控制系统中一款理想的核心控制芯片。同时系统中采用了 TI 公司的 LM77作为温度传感芯片。该芯片是一款 I2 C 接口的温度传感芯片，该芯片具有精度高，直接数字输出等特点。系统采用 RS232接口与上位控制机进行接口，实现了温度数据的上报和上位机对该系统的控制。同时为减小温度采集误差，该系统采用了多项式拟合温度传感器特性曲线的方法来控制测量误差，使测量误差得到了有效改善。
온도채집계통이STM32F103VET6심편위핵심공제심편，응용해심편적정시기공능、천구공능、I2 C 접구등완성해온도채집계통적수거채집，수거처리、오차공제、수거상보등공능。해심편구유공모소，집성도고，은정가고등특점，시온도공제계통중일관이상적핵심공제심편。동시계통중채용료 TI 공사적 LM77작위온도전감심편。해심편시일관 I2 C 접구적온도전감심편，해심편구유정도고，직접수자수출등특점。계통채용 RS232접구여상위공제궤진행접구，실현료온도수거적상보화상위궤대해계통적공제。동시위감소온도채집오차，해계통채용료다항식의합온도전감기특성곡선적방법래공제측량오차，사측량오차득도료유효개선。
The temperature acquisition system,using STM32 as the core control chip,applies its functions of timer,serial port,I2 C interface to realize the functions such as temperature acquisition,data processing error controlling and data reporting,etc.It has the characteristics of low power consumption, high degree of integration and high stability,so it's an ideal choice for the system.At the same time,a type of temperature sensor LM77 from TI is used in this system.It has I2 C interface with the characteristic of high -accuracy and direct digital output.The 485 bus interface is used in this system to realize the function of communication and controlling with the host computer,and the method of polynomial curve fitting is used to decrease the error.