An Unobstructive Sensing Method for Indoor Air Quality Optimization and Metabolic Assessment within Vehicles.
An Unobstructive Sensing Method for Indoor Air Quality Optimization and Metabolic Assessment within Vehicles.
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DOI：
10.3390/s20247202
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发表时间：
2020-12-16
期刊：
影响因子：
--
通讯作者：
Forzani E
中科院分区：
文献类型：
--
作者：
Deng Y;Sprowls M;Mora SJ;Kulick D;Tao N;Destaillats H;Forzani E
这项工作研究了一种智能和无障碍性传感技术的使用，以保持车辆驾驶舱的室内空气质量，同时评估驾驶员的代谢率。人们对二氧化碳的积累模式非常感兴趣，因为二氧化碳在较高的浓度下会对认知产生负面影响，而且二氧化碳的积累速度可能会被用来确定一个人的代谢率。车辆通风系统的管理是通过定期交替机舱内的空气再循环模式来控制的，该模式是根据机舱内的二氧化碳水平来启动的。二氧化碳积累期被用来评估司机的代谢率，使用的模型考虑了车辆的空气交换率。在方法优化的过程中，发现车辆的换气率(λ[h−1])取决于车速，当行驶速度超过17mph时，λ=0.060×(速度)−0.88.对于N=16次不同车速的代谢评估，新方法评估驾驶员的代谢率(1620±140千卡/天)与间接量热法参考方法(1550±150千卡/天)之间的准确度达到95%。这种新的传感方法代表了一种新的方法，可以在保持车内室内空气质量的同时，无障碍地评估司机的代谢率。
This work investigates the use of an intelligent and unobstructive sensing technique for maintaining vehicle cabin’s indoor air quality while simultaneously assessing the driver metabolic rate. CO2 accumulation patterns are of great interest because CO2 can have negative cognitive effects at higher concentrations and also since CO2 accumulation rate can potentially be used to determine a person’s metabolic rate. The management of the vehicle’s ventilation system was controlled by periodically alternating the air recirculation mode within the cabin, which was actuated based on the CO2 levels inside the vehicle’s cabin. The CO2 accumulation periods were used to assess the driver’s metabolic rate, using a model that considered the vehicle’s air exchange rate. In the process of the method optimization, it was found that the vehicle’s air exchange rate (λ [h−1]) depends on the vehicle speeds, following the relationship: λ = 0.060 × (speed) − 0.88 when driving faster than 17 MPH. An accuracy level of 95% was found between the new method to assess the driver’s metabolic rate (1620 ± 140 kcal/day) and the reference method of indirect calorimetry (1550 ± 150 kcal/day) for a total of N = 16 metabolic assessments at various vehicle speeds. The new sensing method represents a novel approach for unobstructive assessment of driver metabolic rate while maintaining indoor air quality within the vehicle cabin.
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DOI：
10.3390/ijerph15040611
发表时间：
2018-03-27
影响因子：
--
作者：
Barnes NM;Ng TW;Ma KK;Lai KM
通讯作者：
Lai KM
DOI：
10.1016/j.trd.2018.03.018
发表时间：
2018-07-01
影响因子：
7.6
作者：
Chang, Tong-Bou;Sheu, Jer-Jia;Chang, Che-Cheng
通讯作者：
Chang, Che-Cheng
DOI：
10.1016/j.trd.2010.07.003
发表时间：
2011-03-01
影响因子：
7.6
作者：
Gladyszewska-Fiedoruk, Katarzyna
通讯作者：
Gladyszewska-Fiedoruk, Katarzyna
影响因子：
3.8
作者：
Ruiz, Ivan;Sprowls, Mark;Forzani, Erica S.
通讯作者：
Forzani, Erica S.
影响因子：
5
作者：
Hudda, Neelakshi;Eckel, Sandrah R.;Knibbs, Luke D.;Sioutas, Constantinos;Delfino, Ralph J.;Fruin, Scott A.
通讯作者：
Fruin, Scott A.