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Interactive Sliding Screen, a new type of digital display method, which is a large screen system which use a single LCD/OLED screen (touch-enabled) moves smoothly from side to side automatically to present information on various points of interest of the background display board(which can be image panels or video wall screens).

With proximity sensor, the large screen system turns on and moves with the movement of the visitor when he/she approach, which can grab the viewer’s attention immediately. The audience can push the LCD/OLED screen (touch-enabled) up, down, left and right according to the track. The system will projects the image details of the background display board on the LCD/OLED screen, and interacts according to the sliding. When the user click the image on the surface of the LCD/OLED screen, a series of interactions such as zoom-in, zoom-out, and rotation will be performed according to user actions.

What’s the Working Principle of Interactive Sliding Screen?

The Interactive Sliding Screen system is composed of customized slide track, DC motors, PLC, IR sensors, background display board (image plate/video wall), mounting bracket, LCD/OLED screen (touch-enabled) , control PC, and play software, etc.

Various display pictures are embedded on the background display board similar to the coordinate axis, and a set of sliding track mechanical structure are used to hang the LCD/OLED screen. Different touch points are set at the position of the background picture, and sensors are installed on the sliding track in advance. The sensor signal will be triggered once the LCD/OLED screen moves to the corresponding sensing point, and the screen will automatically play the corresponding video content.

The Interactive Sliding Screen system is divided into perspective mode and event-triggered mode. In the first mode, the LCD/OLED screen can analyze background pictures or objects in real time once the system activated. In the event-triggered mode, the video introduction content of this part will be automatically played on the LCD/OLED screen once runs to the preset node.

What’s the advantages of Interactive Sliding Screen?

1. Carry Large Amount of Information

The Interactive Sliding Screen carries a large amount of information. It can convey more information to be displayed, which is more intuitive than pictures and texts. And it can save more space, making the entire exhibition hall more vibrant and technological with multimedia items.

2. Help the Customer Know the Product Better

With this novel interactive method, visitors are more easily attracted, and it is convenient for them to further understand the products. The advantages of interesting, interactive, entertainment and practical effects, make the interactive experience of entertainment more prominent.

3. Lighten the Burden of Commentators

Usually the memorial museum hall is equipped with a special person to explain, which needs to spend a sum, but some of the explanations are very boring. Displaying the boring text image on Interactive Sliding Screen can achieve a very intelligent commentary effect. That can bring very good interaction, and also save the cost of the commentator.

4. Better Publicity Effect

This novel interactive way will attract more visitors to watch and get a good publicity effect. Once visitors enter the multimedia exhibition, the large-screen system will be activated immediately, which truly realizes automatic control, and can control multiple detection points at the same time, making the entire exhibition hall more vivid and random. What’s more, it truly realizes power saving, energy saving and environmental protection.

What’s the main application field of Interactive Sliding Screen?

1. Museum. It is generally used to display the content of the pictures of the background wall, so that the boring and monotonous text content can be well explained on the video, and visitors can see the content clearly at a glance.

2. Car Press Conference. Usually people only know the shape and interior when they see a car, but not very clear about the structure. The Interactive Sliding Screen can let the audience clearly and deeply understand the internal structure of the car.

3. Enterprise Exhibition Hall. The Interactive Sliding Screen can reflect the major events that have occurred over the years, so that people can clearly understand the achievements and future development of the enterprise.

FPGA (Field Programmable Gateway Range) is an item of further advancement on the basis of programmable tools such as PAL and GAL. It became a semi-custom circuit in the area of application-specific incorporated circuits (ASIC), which not only solves the shortages of customized circuits, however likewise conquers the drawbacks of the limited variety of entrance circuits of the initial programmable tools.

What are the advantages of FPGA?

1, FPGA is made up of hardware resources such as logic device, RAM, multiplier, etc. By rationally arranging these hardware sources, equipment circuits such as multipliers, registers, as well as address generators can be understood.

2, FPGA can be made by utilizing block layout or Verilog HDL, from basic entrance circuit to FIR or FFT circuit.

3, FPGA can be reprogrammed forever, and also it only takes a few hundred nanoseconds to load a brand-new layout. Reconfiguration can lower equipment expenses. To

4, The operating regularity of FPGA is established by the FPGA chip and also layout, and specific demanding requirements can be satisfied by customizing the layout or replacing faster chips (Naturally, the operating frequency is not limitless, however is influenced by the present IC Restricted by elements such as modern technology).

The drawbacks of FPGA

1, All features of FPGA are recognized by hardware, as well as procedures such as branch problem jump can not be recognized.

2, FPGA can just recognize fixed-point procedures.

FPGA relies upon hardware to execute all features, and its speed is similar to that of devoted chips, however its style flexibility is much behind general-purpose processors.

Over the last few years, massive master control systems have been progressively extensively utilized, as well as the degree of related video division innovation is gradually improving. This modern technology makes use of multi-screen splicing to present one video clip signal. Sometimes, huge the scenes displayed on the screen are commonly used.

With the improvement of modern technology, video clip division innovation gradually grows to meet people’s basic needs for clear video clip photos. FPGA chip hardware structure is relatively special. You can use pre-edited rational structure documents to change inner framework, and utilize limited files to adjust The connection and location of the reasoning device appropriately manage the information line course, as well as its own adaptability and also versatility help with the advancement as well as application of individuals. When processing video clip signals, FPGA chips can make complete use their very own speed and also structural advantages to execute innovation and pipeline modern technology. In the procedure of exterior link, the chip embraces an information parallel link approach to widen the little bit width of image details as well as use inner logic features to boost the rate of photo processing. Via the cache structure as well as clock management to achieve control of image handling as well as other devices. In the overall style structure, the FPGA chip goes to the core. The interpolation handling, extraction as well as storage of complicated information additionally contribute in overall control to make certain the secure procedure of the system. Additionally, video info handling is different from various other information processing, needing the chip to have a unique reasoning device and also a RAM or FIFO system to ensure enough data transmission rate.

Since its introduction in 2010, HDBaseT has become the de-facto connectivity standard for AV transmission of UHD video & audio, Ethernet, USB, controls, and long-distance transmission over Cat5e/6/7 cables. With HDBaseT technology, we have seen better performance than previous solutions, richer feature sets, and increased reach. The HDBaseT Alliance is a group of industry organizations such as LG, Samsung, and Sony who promote HDBaseT as an industry standard. The foundation of HDBaseT technology is 5Play.

5Play, means 5 key elements of HDBaseT as below:

Full HD and Ultra HD video – HDBaseT technology can transmit fully uncompressed ultra-HD and 4K video signals, with near zero latency.

Power Over Cable (PoC) – HDBaseT will transmit Power Over Cable up to 100W, allowing power from the HDBaseT transmitter to be transmitted via a Cat cable to the receiver unit, thus eliminating the need for a power supply for the receiver.

Various Control Signals (IR, RS-232, USB) – HDBaseT delivers control signals from CEC, such as powering on/off and play/stop, to USB/RS232 and IR commands that allow you to operate your source device remotely.

Ethernet – Standard 100BaseT Ethernet capabilities include enabling computers, TV’s and other consumer electronic devices to interact with each other.

Digital Audio – HDBaseT supports transmission of all digital audio formats including Dolby Digital, Dolby True HD, and DTS master audio.

Benefits of HDBaseT

Signal Convergence – HDBaseT provides A/V, Ethernet, USB, controls and power all over a single Cat5e/6/7 cable, this declutters setups, simplifies installations and reduces costs.

Performance – This current generation of HDBaseT can deliver up to 4K UHD resolution.

USB – The USB extension allows for control of your source PC device remotely with a USB powered keyboard/mouse or interactive touch panel. The high speed USB allows for fast data transfer with near zero latency.

Bi-directional IR Control – Extend the IR signals both ways, either from Transmitter (source) to Receiver (sink) or Receiver to Transmitter.

RS-232 – Having RS-232 allows for control of source devices remotely and gives you the ability to change the source and display device, channels, volume, brightness and more. Having RS-232 allows for two-way communication between the source device and the device being controlled.

Affordability – HDBaseT gives installers a low-cost infrastructure without losing out on performance. Having HDBaseT removes the need for electrical outlets and cables near the RX due to PoC.

Versatility – HDBaseT is easily adapted across multiple sectors and is widely used.

AV over IP (or networked AV as it is commonly known) is the transmission of audio, video and other signals over the Internet, LAN or WAN networks.

It takes a signal from an AV source, such as a media player or PC and passes it through an encoder, which breaks it down into manageable chunks of digital data called packets. This data travels through the network and is converted back into a compatible AV signal when it reaches the decoder. The signal is then received by output device (speaker, display, projector etc.)

When transmitting and receiving from multiple sources, a network switch operates as the focal point between the encoder and decoder, providing separate connections for each input and output device

What are the benefits of AV over IP?

At first glance, AV over IP systems look very similar to traditional AV networking solutions such as HDBaseT, but the use of an IP network brings some key benefits.

  1. Highly scalable

Network based system can accommodate very large

number of devices – not limited by physical ports on switches, can be expanded with IP ports and only limited by the IP network it is connected to.

Saves cost by avoiding buying expensive AV switches and gives the ability to manage a large number of multi-point displays from a single investment.

  1. Easy to install

One of the key benefits of AV over IP is that it can utilize existing network infrastructure, depending on the bandwidth required.

Far less cabling with only one cable type: category cable (Ethernet).

Removes physical point-to-point connections, making changes and replacements simpler and more efficient.

  1. Cost savings

As you can utilize existing networks and equipment if your bandwidth requirements are low, there is minimal cost to move to an AV over IP system. The costs for scaling up are also significantly less that alternative networks.

  1. Secure & manageable

Can use same methods employed by IT departments – creating specific zones/areas and enabling authorization.

Easy application of encryption technology

  1. Greater distance

AV over IP can be transmitted over fiber optic or copper cable easily, and although the category cable has a maximum distance of 100 meters, you can add switches and repeaters to increase the distance.

Through IP networks data could theoretically be sent over networks to anywhere worldwide.

Industry applications

AV over IP solutions are perfect for larger installations with a high number of end points, such as universities, stadiums and airports, thanks to huge scalability, less cabling and significant potential cost savings.

Networked AV is also a great option for systems in environments such as sports arenas, corporate offices and public spaces, where user authentication and separate networked zones are required.

Interactive touchscreen is becoming increasingly popular not only for entertainment but also for educational and more commercial purposes. With the ever-increasing demand for touchscreen devices, the technology behind the interactive touchscreen is also evolving. Currently, PCAP and IR type touchscreens are used widely in educational institutes, defense organizations, public places, etc.

PCAP Touchscreen

Projected Capacitive (PCAP) Touch is the technology we are using these days on our smartphones and tablets. The touchscreen uses electricity from the human body to recognize the interaction and register the touch. Thus, as the definition says, PCAP Touchscreen cannot register any other object than the human body as a touch input. PCAP Touch can provide up to 60 touch points, which allows multiple participants to use the screen simultaneously. This provides users with greater engagement and collaboration. The glass used on the Capacitive Touchscreen is as tough as it needs to be maintained for better output. It is durable and rugged enough to bear the wear and tear of regular classroom usage.

For PCAP Touchscreens can go without bezels, they can be of great aesthetic value for your educational institute, home or business. However, as PCAP Touchscreen cannot register touch if your finger is covered by insulating material like wool, cotton, plastic, rubber, etc. Thus, a smartphone touchscreen doesn’t work when we use gloves.

IR Touchscreen

Infrared (IR) technology is the most commonly used technology in touchscreen devices like interactive touchscreens. The IR touchscreens identify touch by looking for interruptions in a uniform beam of light. IR touchscreens have a grid-like arrangement of LED lights and photo detectors around the edges of the display. They are not visible to the naked eyes but these LEDs are constantly emitting light. When you touch the surface, it creates a hindrance in this light and then the device can determine where this hindrance took place. This allows the IR screen to register exact point of contact.

Since IR Touchscreens touch registers the hindrance in the disturbance of transmission of light, both finger and stylus can be used on such type of screens. They also offer a superior level of strength and ruggedness. Since IR touchscreens don’t require patterning on glass, they are very strong and durable. A major advantage of these types of touch is that it can detect any opaque object including a finger, gloved finger, stylus or pen.

Both IR and PCAP Touchscreen are successful and are being widely used in interactive touchscreen devices around the world. However, for the large displays, IR touch technology remains prevalent while smartphones and tablets rely on a capacitive touchscreen only.

Direct view LED video walls (DvLED), offer your church, nonprofit organization, school, or business the chance to engage your audience with a multi-purpose, colorful digital canvas. Easy to install, operate, and maintain, DvLED video walls support 24/7 operating capabilities, high-resolution visuals, flexible configuration options, and relatively low operating costs.

Components of DvLED Video Walls

DvLED video walls are comprised of direct-view LED displays that work together as a unit to display content as if it were a single screen. These LED screens are incredibly efficient because each component is responsible for conducting and emitting its own light. The three primary components of a DvLED video wall are a display system, hardware, and software. Typically, the display system consists of tiled LED panels put together to create a wall that complement your space. The hardware provides a hub from which you can control your video wall and add inputs such as live feeds, cable boxes, edited files, and more.

Direct-view LED displays are available in any size and well suited for large projects like stadium screens and outdoor signs. Stewart Signs offers DvLED video walls that have multiple pixel pitches to choose from, which allows your sign to have a bright, high contrast, seamless image no matter the size. Additionally, DvLED displays are an excellent choice for schools, churches, and businesses thanks to their bright, crisp images and low operating costs.

Key features:

High brightness

Can be built any size –suited for larger sizes

Indoors or outdoors

Multiple pixel pitches available

Seamless image

A direct-view LED video wall creates a nearly unparalleled viewing experience, featuring sharp images that look great from any angle. LED screens can display images with lots of different colors, and they also come with brightness levels that allow viewers to see images clearly — even outside in the sun. Video walls offer unmatched versatility. You can select a pixel pitch based on the viewing distance of most of your audience, the type of content you plan to display, and your desired clarity. You can choose between indoor and outdoor screens and fixed or mobile video walls as well as a variety of other specs.

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