Extron Contributes to Training in Wake Tech Simulation Rooms

Switching systems, distribution, AV control and audio Extron Configure the simulation rooms of medical emergency services (SEM) to train technicians on this North American campus.

Wake Technical Community College, in North Carolina (Us.), es la institución comunitaria más grande del estado, to which some go to 70.000 students. in Perry Health Sciences Campus, Students take courses for certification as Emergency Health Technicians (TES) and paramedics.

The course includes intensive training based on scenarios using Simulation equipment state-of-the-art technology to master practical skills and critical thinking as vital elements in the intervention protocol, Diagnosis and treatment of patients in emergency and trauma situations.

The so-called Health Sciences Building B Includes a simulation room Emergency Medical Services (SEM) Prepared as if it were an apartment: with kitchen, living room, Room and bathroom with high-fidelity medical mannequins that instructors control from an adjacent control room.

Instructors create emergency scenarios, supervise them, lead and make a critical analysis of the actions of TES and paramedicine students through a window of direct observation, as well as video and audio, Live or recorded, Streaming from multiple cameras.

In addition, Video and audio of simulation sessions is recorded and sent by streaming to display during briefings, as well as so that it can be evaluated by students and instructors of remote classes in real time.

Wake Tech's IT and AV staff designed the simulation room AV system, whereas Inter Technologies carried out the installation and commissioning of the system, who selected the switching systems, distribution, AV control and audio Extron.

A large part of the budget for the simulation room was allocated to its construction and the acquisition of the patient simulation system., which includes several full-body mannequins (adults, Children and obstetricians) that are controlled remotely with software capable of presenting a wide set of clinical symptoms and vital signs under different programmable scenarios.

The audiovisual system is as important as the simulation system, as it records and streams the video and audio events of the training sessions for analysis and observation in real time by instructors and students, and is robust enough to support this important training mission, with simple operation.

To capture all activities during training exercises, Each of the four simulation spaces is equipped with a PTZ camera on the wall and a hanging microphone beamtracking on the roof. A switching array DXP84 HD 4K Plus Routes HDMI video From the cameras.

The microphones in the simulation room, plus the instructor's control room, transmit to a digital audio distribution system that performs routing, in addition to digital signal processing to direct acoustic emission and acoustic echo cancellation.

Two of the HDMI outputs of the video switching matrix connect to a media processor for streaming, with SMP dual recording 352 from two simulation rooms simultaneously, which also receives analog audio from the audio DSP.

Processor recordings are played back for analysis to help students and instructors evaluate performance and learning., which are stored in internal memory and USB flash drives.

For greater realism, only the TES team of students who are present at a real rescue are the ones who are normally in a simulation room caring for a 'patient'. Even though, SMP streaming outputs 352 can be sent over the network to additional classes, or even over the Internet by a software codec such as zoom.

Real-time vision

The AV system in the simulation room is equipped with Six 55" flat screens (one of them located in the additional class) that offer observers an overview of the activity about each 'patient' in each space.

For example, in the living room settings, The display device is above the feet of the sofa on which the 'patient' is lying on his back. In the room there are two screens, one above the bed where an adult mannequin rests and, the other, above a crib in which there is a child mannequin.

All six display devices display the same PTZ camera output, as selected in the control room. The matrix switch routes the HDMI video output to a DTP HD DA8 4K distribution amplifier 230, extending the signal over long distances via DTP twisted pair cable to displays, after which a DTP HDMI 4K receiver 230 Rx which converts the signal from DTP to HDMI.

To accompany the video displayed on the 55" display devices, the sounds captured by the Ceiling microphones in simulation rooms are routed to the ceiling speakers of simulation rooms.

The AV control processor ensures that the sound heard from the speakers belongs to the same room that is being displayed on the display devices, so that the audio routing selects the microphone in the same room as the PTZ camera chosen at that time.

Sound from the selected microphone is also heard in the control room through a pair of SM speakers 3, that work by the stereo outputs of a MPA amplifier 152 bonus, to receive audio DSP input.

From the control room, instructors and their assistants can control the AV system and run simulation scenarios from a single operator position. A laptop, placed in front of the instructor, Runs the simulation software Laerdal Medical Corporation, Creators of medical mannequins.

This software can use pre-scheduled simulation scenarios, or have the instructor activate the mannequins on the fly, with physiological parameter settings to initiate patterns and record actions.

one 24" touch screen, Located on the instructor's desk in the control room, is used to control the AV system. The Wake Tech team designed the AV control GUI, while Inter Technologies configured the control system using Extron Global Configurator Professional.

A processor of IP Link IPCP Pro control 350 sends commands to all AV system components through a network switch. The AV control user interface on the touchscreen is implemented via a TouchLink TLI Pro interface 101, to display live HDMI video from the simulation room PTZ cameras within the AV control GUI.

How you say Jennifer Unitis, Head of Academic Informatics at Wake Tech: "I'm glad the school is almost at the 100% Extron, and that everyone on the av equipment has one or more av certifications, whose team has been incredibly helpful in assisting in the design of the SEM simulation room with a solution that meets all our objectives".

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