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Implementation of Digital Classroom at IRISET- Shri C.K.Prasad, GM/Railtel

- Shri V.Balasubramanyam, Instructor/IRISET

Gone are the days where teaching was limited to textbooks and use of blackboards.Technology has made in- roads into every aspect of our life including the way education isbeing imparted. Digital Technology in the classroom is no longer a new phenomenon.Today, training and educational institutes are deploying Digital solutions for a wholesomeand interactive learning experience.

We all know how helpful it is to remember something that is taught visually to us ratherthan the one that is read through pages after pages. Just imagine, how beneficial would itbe for students to understand a chapter visually in class. The concept of smart class education

is indeed a blessing to the students of the 21st Century.

Access to Digital devices & Multimedia contentSmartphones, tablets, and laptops are the fastest-growing acquisition segment in modern households. These

days, children are familiar with using computers and other electronic devices. Sticking to archaic ways ofteaching could create a gap between teachers and students. An interactive learning environment keeps studentsengaged and makes them ready for a progressively digital society & workforce.

With both students and teachers becoming more tech savvy, educational and training institutions need toinstall more digital classroom solutions. Apart from PCs and Tablets, new age collaborative technology likeinteractive projectors and whiteboard can be extremely beneficial. Digital solutions can facilitate easycollaboration, participation, and dedication from your students. This leads to added retention of day-to-daylearning.

Wholesome way of imparting educationExperts have noticed that students respond much better with audio visual aids & multimedia content rather

than textbooks. Grabbing students attention is winning half the battle for trainers and educators. Digital classroomsolutions have the ability to immerse students in the topic being discussed. Students are attentive and showinterest in the subject being taught. It is almost like taking students to a museum without actually leaving theclassroom premises. Having an interactive learning environment aids meaningful conversations and experiencesamong students. Teachers no longer have to worry about lack-of-concentration and retention among students.

There have been discussions about teachers having poor confidence in using technology for education.Skepticism with emerging technology has always prevailed. A little training and pro-activeness from teacherscould help overcome this hurdle.

ArchitectureThe digital classroom project integrates various digital equipment i.e Audio system, Video system, Video

Conference system, Document camera, Lighting and Air-conditioning system which are from diverse OEM’susing open standards interface and protocols. At the heart of the control system is the Digital Media PresentationSystem from Creston.

Crestron is a reliable standardization solution & offers a complete line of interfaces, including dozens touchpanels, keypads, wall mount, lectern mount, and handheld controllers. Crestron hardware features IP-basedcontrol and communication, so all Crestron equipment, and any device or system connected to a Crestroncontroller, is linked to the managed network. Crestron control system also feature SNMP support so that morethan just audio and video equipment can be monitored and managed. In fact, all lights, Air-conditioners, screens,thermostats, and IT network devices are monitored and controlled from a single software interface.

The DMPS3-300-C from Crestron® deployed at IRISET provides a complete, high-definition presentationcontrol and signal routing solution for classrooms, lecture halls, and videoconference rooms. It integrates the

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control system, multi-format matrix switcher, mic mixer, audio DSP, and amplifier all into one 3-space rackmount package. The control system provides extensive signal routing flexibility and high-performance signalprocessing without the need for separate components. Auto-configuring inputs enable plug-and-play compatibilitywith a wide range of digital and analog sources. Built-in DigitalMedia 8G+® and HDBaseT® connectivityaffords a streamlined, long-distance wiring solution for remote sources and display devices, and for facility-wide integration as part of a larger media distribution system.

Crestron e-Control can even turn any web-enabled device, such as a Desktop, laptop, I-Pad or Blackberry,into a Crestron control interface.

The User Interface (UI) is the remote control for the complete system. A UI full-color touch panel. Thepurpose of the UI is to simplify the operation of the Audio-Visual system with intuitive controls and automatedfunctions (such as powering on/off several devices simultaneously or changing lighting presets).

Active learning is an instructional method in which students engage in a variety of activities to learn theirstudy material, including reading, writing, talking, listening and reflecting. Active learning classrooms arebecoming more popular, with a growing demand for the adoption of this type of classroom. To keep up with thetrends, traditional classrooms have to be remodeled into dynamic, technology-rich project rooms. Active learningclassrooms have to be flexible and inspire collaboration. After all, the goal is to create a positive learningexperience!

The digital infrastructure in Classroom no 307 at IRISET facilitates learning and collaborating dynamicallyby enabling:

i. Transmitting multimedia HD content from a variety of devices to one display or multiple displaysii. Connecting laptop computers to local displaysiii. Recording lectures from the teacher’s desk for online learningiv. Controlling AV equipment at teacher’s desk and the whole roomv. Using a wireless WEARABLE microphone for teacher lectures and WIRELESS microphones for stu-

dentsvi. Sharing lecture notes and presentation files with studentsvii. Presentation from smartphone directly (Android and iOS) without PC or Laptop using Wi-Fi (Miracast

wireless function)The Sound Reinforcement system controls the volume of speech or music and distribute the sound, so it can

be heard intelligibly by the students. The instructor is provided with hands-free wireless microphone to wearduring class, so he or she can move about freely during a lecture and/or project work. Additionally, instructorshave the ability to connect a laptop, video player or other device to share presentations or play multimedia andhigh-definition movies.

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S.No. Description Unit Qty

I Audio System consisting of the following as per specification for each item as given in Annexure ‘II’

a. Handheld Wireless Digital Microphone No. 1b. Wireless wearable HD microphone with rechargeable battery

(set of 2 no’s) with 02 channel microphone receiver with analog inputs and outputs with 128 Bit security encryption

No. 1

c. Gooseneck Microphone, 2 Dual flexible sections along with panel mount XLR female

No. 1

d. Audio DSP with AEC with 12 MIC/Line inputs & 8 line outputs, USB inputs for software based videoconferencing and feedback suppresser function for PA system

No. 1

e. Audio power Amplifier of 02 channel, 200 watts per channel at 8? , 300 watts for channel at 4? , 70 volts mono at 600 watts.

No. 1

f. Two-way Surface Mount Speaker with 3”polypropylene cone woofer, 0.75”titanium dome tweeter, 30 watts (120 watts peak) @ 70/100V & 8 ? bypass, (set of 3 speakers on each side of the wall).

No. 2

g. Mounting accessories for above speakers in item If. No. 2

A.Bill of Material

II Video System consisting of the following as per specification for each item as given Annexure in ‘II’

a. WUXGA LCD Projector of 4800 lumens or better, contrast ratio 10,000:1 with Digital Link & Miracast Wireless Function. No. 1

b. Universal Ceiling mount kit for the above projector No. 1 c. Motorized projector Screen of 128”(16:10) size with IR remote,

low voltage, 3-way wall switch & 12 volt trigger cable. No. 1

d. Confidence monitor for presenter of 42” size full HD LED display.

No. 1

e. Wall/Ceiling mount for above display No. 1 f. Cable cubby with 2-Universal power, HDMI & VGA No. 1 g. Floor Box Set 1 h. 4K Digital media 8GT M+Receiver & Room Controller 100 No. 1 i. Bluray/DVD Player with USB Multi-media player No. 1 j. HDMI Standard Speed Cable: HDMI Male to Male – 35’ (10.6

m)No. 1

k. VGA Micro HR with Audio Cable: 15-pin HD Male to Male Low-Profile Molded + 3.5mm Stereo Mini Plug Male to Male – 12’ (3.6 m)

No. 2

l. 12’ (3.6 m) High Speed ultra-thin HDMI Cable No. 10 m. HDMI Standard Speed Cable: HDMI Male to Male – 50’ (15.2

m) No. 2

n. Audio De-Embedder & HDMI/ De-Embedder No. 1 o. VGA+A & HDMI Digital media transmitter with CATX & HDMI

output for podium display No. 3

p. Tablet Monitor comprising of 13”HD creative & touch display for drawing an annotation.

No. 1

q. Desktop Document Visualizer, Professional 16X zoom with VGA & HDMI inputs/outputs & USB Flash recording option.

No. 1

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IV Cables, Connector, Installation & Accessories consisting of the following as per specification for each item as given in Annexure ’II’

a. CAT 6 UTP Cable box (305m) No. 8b. Five Conductor MHR – Mini High Resolution Cable with Five

26 AWG, 75 ohm coaxial conductors in a single jacket, Bulk Cable in meters

No. 50

c. Speaker Cable with Two 18 AWG conductors & SuperFlex jacket Bulk in meters No. 100

d. Line Audio Cable bulk cable No. 70

e. Serial Control/Audio Cable with Single 20 AWG shielded twisted pair with drain wire Bulk in meters No.

70

f. Speaker Cable with Two 14 AWG conductors and SuperFlex Jacket No.

150

g. Branded bulk Connectors No.

1

h. Installation, Casing & Caping required Civil Work, cabling, programming and other services LS

1

III Switching and Control System consisting of the following as per specification for each item as given in Annexure ‘II’

a. Control processor Digital Media Presentation System 300, high-definition presentation control and audio/video signal routing

No. 1

b. Control Port Expansion Module for extra connectivity & control No. 1c. Touch Panel IPAD standard version Latest Model No. 1d. Docking station for Touch Panel IPAD with Docking for

Crestron Automation No.1

e. Application Software for Touch Panel Item No. III (C) No. 1f. Wireless access point conforming to 802.11 a/b/g/u

DLink/Netgear No.1

g. 8 x 2A Multi -Purpose Controller-Manual Override (DIN Rail High-Voltage Switch with 8 channels of power switching which supports 120 to 240 Volt 50/60 Hz and Override input for emergency) No.

1

h. 1 x 4A leading Edge Dimmer module (DIN Rail 4-Channel Dimmer with Phase-Synchronous Detection Circuitry which supports 120 to 240 Volt 50/60 Hz) No.

4

i. 1 x 2A ballast Control module (DIN Rail 2-Channel DALI Interface which controls up to 128 DALI ballasts) No.

4

j. Universal Sensor Ceiling Mount-Surface mount (Dual- Technology Occupancy Sensor, 2000 Sq.Ft. (low-profile ceiling mount occupancy sensors designed for large areas up to 2000 square feet to detect when the room is occupied) No.

1

k. Button panel Cameo Keypad- International Version No. 1

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