RFTemp: Monitoring Microwave Oven Leakage to Estimate Food Temperature

RFTemp: Monitoring Microwave Oven Leakage to Estimate Food Temperature
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RFTemp:监测微波炉泄漏以估计食物温度

DOI:
10.1145/3494967
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发表时间:
2021
期刊:
Wearable and Ubiquitous Technologies
影响因子:
--
通讯作者:
Srinivasan, Kannan
Srinivasan, Kannan
中科院分区:
--
文献类型:
--
作者:
Banerjee, Avishek;Srinivasan, Kannan

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近年来,微波炉已被广泛用于快速有效地加热食物。用户通过先验知识或试错过程来估计加热食物的时间。然而,这往往会导致食物过热或加热不足,破坏营养成分。在本文中,我们提出了RFTemp,一个可以监测微波炉泄漏的系统,以估计正在加热的食物的温度,从而估计食物达到目标温度的准确时间。为了设计这样一个系统,我们提出了一个创新的微波泄漏传感程序和一个新的水等效食品模型来估计食品温度。为了评估RFTemp的真实性能,我们使用软件定义的无线电构建了一个原型,并使用家用微波炉对各种食品进行了实验。我们表明,RFTemp可以估计食物的温度,平均误差为5°C,比非接触式红外温度计和传感器提高了2倍。
Microwave ovens have been widely used in recent years to heat food quickly and efficiently. Users estimate the time to heat the food by prior knowledge or by trial and error process. However, this often results in the food being over-heated or under-heated, destroying the nutrients. In this paper, we present RFTemp, a system that can monitor microwave oven leakage to estimate the temperature of the food that is being heated and thus estimate the accurate time when the food has reached the targeted temperature. To design such a system, we propose an innovative microwave leakage sensing procedure and a novel water-equivalent food model to estimate food temperature. To evaluate the real-world performance of RFTemp we build a prototype using software defined radios and conducted experiments on various food items using household microwave ovens. We show that RFTemp can estimate the temperature of the food with a mean error of 5°C, 2x improvement over contactless infrared thermometer and sensors.
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