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首页> 外文期刊>The Internet Journal of Medical Simulation >Mobile, Wireless, Multi-Camera Audiovisual Solution For Simulation: A Novel Application Of Existing Technology
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Mobile, Wireless, Multi-Camera Audiovisual Solution For Simulation: A Novel Application Of Existing Technology

机译：用于模拟的移动，无线，多摄像机视听解决方案：现有技术的新型应用

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IntroductionVideo capture is used in simulation for the purpose of video-assisted debriefing, assessment or multiple research applications. Each application has its own requirements and selection of an audiovisual (AV) solution must be based on consideration of the location of the proposed system, personnel available, purpose(s) of the system and available budget.MethodsWe reviewed several commercially available AV systems for our mobile in-situ simulation program. We then found an alternative whereby we used existing technology from the field of extreme sports video to create a novel ultraportable set-up for healthcare simulation video capture.ResultsWireless, high-definition video cameras are positioned around our in-situ simulation environments. They are controlled remotely via Wi-Fi to capture several points of view simultaneously. They are then integrated into a single media file where the four feeds may be viewed contemporaneously using any media viewing software.ConclusionWe have created an AV solution that emulates the principal features of a commercially available system at a fraction of the cost. Introduction When designing a simulation program, consideration must be given to the audiovisual (AV) solutions. Video capture is widely used during high-fidelity patient simulation but can also be applied to low-fidelity simulation or part-task training1. We know that reviewing video of high-stakes situations is associated with improved clinical performance2 although this has not consistently been shown to be superior to oral debriefing without video playback3. Detailed video may be captured for the purposes of assessment, where an expert rater can score performance after the event4-6. Education research methodology often involves video-recording simulated events that may then be analyzed in line with the objective of the study.There are many factors which dictate the suitability of an AV solution for medical simulation activities. Firstly, the location: whether the system will be a static, hard-wired solution integrated into the infrastructure at a given location (e.g. simulation centre) or a portable set-up for mobile in-situ simulation. For the location-anchored solution, wall or ceiling-mounted camera angles and zoom may be controlled and mobile trolley or boom cameras positioned but the set-up cannot be used beyond the confines of the premises at which it is installed. For a mobile solution, portability is paramount whilst complex functionality might be sacrificed. Placement and angle of cameras must be versatile, adjustable and ideally wireless to reduce clutter.The second factor regards personnel – the number of educators, their ability to manage technical issues and the availability of technical support staff. In the context of a simulation center, there are often full time technicians who are responsible for operating and troubleshooting audiovisual systems. The task can be more complex and can take advantage of the multiple features of a sophisticated, commercially available AV system because this member of the team can focus their attention on it. If a simulation center does not have full time technical support or cannot provide an outreach technician for in-situ simulation sessions then occasionally a sole clinician-educator will be responsible for facilitating the session, operating the mannequin, noting points for debriefing, conducting the debrief and operating the audiovisual system. Not only is this a cognitive load that strains their ability to excel at any one of these tasks, but it virtually eliminates the chance to take full advantage of the functionality of an advanced system. Furthermore, advanced AV technical ability is not a universal characteristic of simulation educators such that some excellent facilitators are not in a position to operate a sophisticated AV system.Thirdly, we must consider the intended purpose of the AV system. The video playback requirement may be considered in two categories:
机译：简介视频捕获用于模拟，用于视频辅助汇报，评估或多种研究应用。每个应用程序都有其自己的要求，必须根据拟议系统的位置，可用人员，系统目的和可用预算来选择视听（AV）解决方案。我们的移动现场模拟程序。然后，我们找到了一种替代方法，利用极限运动视频领域的现有技术来创建用于医疗保健模拟视频捕获的新型超便携式装置。结果无线高清摄像机位于我们的现场模拟环境中。可通过Wi-Fi对其进行远程控制，以同时捕获多个视点。然后将它们集成到单个媒体文件中，可以使用任何媒体查看软件同时查看四个提要。结论我们创建了一个AV解决方案，该解决方案可以模拟市售系统的主要功能，而成本却很小。简介设计模拟程序时，必须考虑视听（AV）解决方案。视频捕捉在高保真患者模拟中被广泛使用，但也可以应用于低保​​真模拟或部分任务训练1。我们知道，回顾高危情况的视频与改善临床表现2相关联，尽管并没有始终如一地证明这比不播放视频的口头汇报更为出色3。出于评估的目的，可能会捕获详细的视频，专家评估人员可以在事件4-6之后对效果进行评分。教育研究方法学通常涉及对模拟事件进行视频记录，然后可以根据研究目的对其进行分析。有许多因素决定了AV解决方案对医学模拟活动的适用性。首先，位置：系统是在给定位置（例如，模拟中心）集成到基础架构中的静态，硬连线解决方案，还是用于移动原位模拟的便携式装置。对于位置固定的解决方案，可以控制安装在墙上或天花板上的摄像机的角度和变焦，并可以定位移动手推车或动臂摄像机，但不能在安装场所以外的范围内使用设置。对于移动解决方案，可移植性至关重要，而复杂的功能可能会被牺牲。摄像机的位置和角度必须是通用的，可调节的，并且理想情况下必须是无线的，以减少混乱。第二个因素涉及人员-教育工作者的数量，他们处理技术问题的能力以及技术支持人员的可用性。在模拟中心内，通常有专职技术人员负责视听系统的操作和故障排除。这项任务可能会更加复杂，并且可以利用复杂的市售AV系统的多种功能，因为该团队的成员可以将精力集中在此方面。如果模拟中心没有专职技术支持或无法为现场模拟会议提供外展技术人员，则有时由唯一的临床医生-教育者负责主持会议，操作人体模型，记录汇报情况，进行汇报和操作视听系统。这不仅是一种认知负担，使他们无法胜任这些任务中的任何一项，而且实际上消除了充分利用先进系统功能的机会。此外，先进的视听技术能力不是模拟教育者的普遍特征，因此一些优秀的辅助者无法操作复杂的视听系统。第三，我们必须考虑视听系统的预期用途。视频播放要求可以分为两类：

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