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| 低功耗高精度数字温度计的设计 |
| The Design of the Low Power Loss and High Accuracy Digital Thermometer |
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| DOI：10.3969/j.issn.1671-5322.2007.02.013 |
| 中文关键词: 传感器 单片机 温度计 低功耗 A/D |
| 英文关键词: sensor single-chip computer thermoneter low power consumption A/D |
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| 摘要点击次数: 4035 |
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| 中文摘要: |
| 数字温度计设计主要从硬件选型和软件设计两方面着手,可有效降低功耗,延长工作时间,提高测量精度.软件设计采用间歇式工作模式,在保证系统性能要求的情况下缩短CPU的工作时间,使系统较长时间工作在低功耗模式下,有效地降低了系统的能耗;同时,使用集成于单片机内部的Slope A/D转换器,并采用多点校准技术和线性插值方法,提高温度采样的精度. |
| 英文摘要: |
| The digital thermometer design mainly starts from the hardware shaping and software design,which can effectively reduce the power loss,lengthen the operating time,increase the measuring accuracy.The software design uses the inter mittent working pattern,which reduces the operating time of CPU in guarantee system performance so that the system always works in low-consumption patterns and the system energy consumption is very low.Meanwhile,the slope A/D converter integrated in the microcontroller,multi-point calibration technology and the linear interpolation method are used in order to improve the system precision. |
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