摘要
针对热能计量的需要,研制了一种以AT89C52单片机为核心的热能自动计费仪的系统,介绍了该系统的功能、硬件结构、软件设计及其应用情况。该系统设计中采用了智能IC卡技术,可实现自动收费用处理,外接数据存储器E^2PROM,可保证系统数据的准确性;芯片PCF8583可使用户预设开关的时间。系统的温度分辨率0.3℃,计费误差0.65％。
Aim at the requirement of thermal meterage, an automatic thermal meterage meter with AT89C52 SCP as its core was developed. The function of the meter, its hardware structure and software design and application were introduced . In the design the intelligent IC card technology was employed which can charge automatically. The external data memory E PROM was used to guarantee the accuracy of the meter and the calendar clock chip PCF8583 was used to preset the time of turning on or off. Its temperatrure accuracy rating is 0. 3C, and calculation error is 0.65%.
出处
《鞍山科技大学学报》
2003年第3期179-181,共3页
Journal of Anshan University of Science and Technology
