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Development and Testing of a Device to Increase the Level of Automation of a Conventional Milking Parlor through Vocal Commands

机译：开发和测试通过声控命令提高常规挤奶厅自动化水平的设备

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A portable wireless device with a “vocal commands” feature for activating the mechanical milking phase in conventional milking parlors was developed and tested to increase the level of automation in the milking procedures. The device was tested in the laboratory and in a milking parlor. Four professional milkers participated in the experiment. Before the start of the tests, a set of acoustic models with speaker-dependent commands defined for the project was acquired for each milker using a dedicated “milker training procedure”. Two experimental sessions were performed by each milker, with one session in the laboratory and a subsequent session in the milking parlor. The device performance was evaluated based on the accuracy demonstrated in the vocal command recognition task and rated using the word recognition rate (WRR). The data were expressed as %WRR and grouped based on the different cases evaluated. Mixed effects logistic regression modeling was used to evaluate the association between the %WRR and explanatory variables. The results indicated significant effects due to the location where the tests were performed. Higher values of the %WRR were found for tests performed in the laboratory, whereas lower values were found for tests performed in the milking parlor (due to the presence of background noise). Nevertheless, the general performance level achieved by the device was sufficient for increasing the automation level of conventional milking parlors.
机译：开发并测试了具有“语音命令”功能的便携式无线设备，用于激活常规挤奶厅中的机械挤奶阶段，以提高挤奶过程的自动化程度。该设备已在实验室和挤奶厅进行了测试。四名专业挤奶者参加了实验。在测试开始之前，使用专用的“挤奶器训练程序”为每个挤奶器获取了一套针对项目定义了带有扬声器相关命令的声学模型。每个挤奶人员进行两次实验，在实验室进行一次，随后在挤奶厅进行。设备性能基于语音命令识别任务中演示的准确性进行评估，并使用单词识别率（WRR）进行评估。数据表示为％WRR，并根据评估的不同案例进行分组。混合效应逻辑回归模型用于评估％WRR与解释变量之间的关联。结果表明由于进行测试的位置而产生的显着影响。在实验室进行的测试发现％WRR较高，而在挤奶厅进行的测试发现较低WRR（由于存在背景噪音）。然而，该设备所达到的总体性能水平足以提高传统挤奶厅的自动化水平。

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