Rapid Inference of Geographical Location with an Event-based Electronic Nose

Rapid Inference of Geographical Location with an Event-based Electronic Nose
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使用基于事件的电子鼻快速推断地理位置

DOI:
10.1145/3517343.3517381
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发表时间:
2022
期刊:
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影响因子:
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通讯作者:
Dennler N
Dennler N
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作者:
Dennler N

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方法我们构建了一个便携式电子鼻,配备了四种不同的MOx气体传感器(SGX Sensortech MiCS 5914和MiCS 4514双传感器,ScioSense CCS 801),并记录了在葡萄牙里斯本市散步时遇到的自然嗅觉场景,将数据集分为六个地理位置(以下标记为“出租车”,"超市“,”格拉萨",“贝萨”,“海滨”和“桑托斯”)。我们以1kHz对气体感测元件的电导进行采样,同时以140 ms的周期调制加热器功率,每个加热器周期由高功率步骤和随后的低功率步骤组成。这导致传感器电导振荡的方式取决于加热器温度,环境条件和传感器腔中存在的气体(图1)。
METHODSWe constructed a portable electronic nose equipped with four different MOx gas sensors (SGX Sensortech MiCS5914 & MiCS4514 dual sensor, ScioSense CCS801) and recorded the natural olfactory scenes encountered during a walk through the city of Lisbon, Portugal, dividing the dataset into six geographical locations (hereafter labelled’Taxi’,’Supermarket’,’Graça’,’Baixa’,’Seashore’, and’Santos’). We sampled the conductance of the gas sensing elements at 1 kHz while modulating the heater power with a period of 140 ms, each heater cycle consisting of a high-power step followed by a low-power step. This causes the sensor conductance to oscillate in a way that depends on the heater temperature, the environmental conditions, and the gases present in the sensor cavity (fig. 1).
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