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Suitability Evaluation of Multipoint Simultaneous CO2 Sampling Wireless Sensors for Livestock Buildings

机译：多点同时CO2采样无线传感器在畜牧建筑中的适用性评估

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摘要

The environment in livestock buildings must be controlled to ensure the health and welfare of both workers and animals, as well as to restrict the emission of pollutants to the atmosphere. Among the pollutants generated inside these premises, carbon dioxide (CO2) is of great interest in terms of animal welfare and ventilation control. The use of inexpensive sensors means that complete systems can be designed with a number of sensors located around the building. This paper describes a study of the suitability of multipoint simultaneous CO2 sensors operating in a wireless sensor network, which was found to operate satisfactorily under laboratory conditions and was found to be the best alternative for these applications. The sensors showed a highly linear response to CO2 concentrations, ranging from 500 to 5000 ppm. However, individual sensor response was found to differ, which made it necessary to calibrate each one separately. Sensor precision ranged between 80 and 110 ppm CO2, and sensor response to register a 95% change in concentration was estimated at around 5 min. These features mean this type of sensor network can be used to monitor animal welfare and also for environmental control in poorly ventilated livestock premises. According to the tests conducted in this study, a temporal drift may occur and therefore a regular calibration of sensors would be needed.
机译：必须控制牲畜建筑物的环境，以确保工人和动物的健康和福利，并限制污染物向大气的排放。在这些场所内部产生的污染物中，二氧化碳（CO2）在动物福利和通风控制方面引起了广泛关注。使用廉价的传感器意味着可以在建筑物周围设计带有多个传感器的完整系统。本文介绍了对在无线传感器网络中运行的多点同时CO2传感器的适用性进行的研究，发现该传感器在实验室条件下可以令人满意地运行，并且被发现是这些应用的最佳替代方案。传感器对500至5000 ppm的CO2浓度表现出高度线性响应。但是，发现各个传感器的响应有所不同，因此有必要分别校准每个传感器。传感器的精度介于80至110 ppm CO2之间，估计在5分钟左右记录浓度变化95％的传感器响应。这些功能意味着这种类型的传感器网络可用于监测动物的福利，还可用于通风不良的牲畜饲养场所的环境控制。根据这项研究中进行的测试，可能会发生时间漂移，因此需要定期校准传感器。

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