ما هو انعكاس الشاشة؟

يمكن لتقنية انعكاس الشاشة توصيل الكمبيوتر المحمول أو الهاتف أو الجهاز اللوحي أو شاشة مشغل الوسائط لاسلكيًا بشاشة عرض - مما يلغي الحاجة إلى تشغيل الكابلات في غرفة الدراسة أو غرفة الاجتماعات. يعد انعكاس الشاشة أداة أساسية لتسهيل التعاون وجهاً لوجه بأمان، وعرض المحتوى الخاص بك أثناء العرض التقديمي، وتبديل مقدمي العروض على الفور بغض النظر عن مكان وجودهم في الغرفة.

سيعلمك هذا المقال ما هو انعكاس الشاشة، وما هو ليس كذلك، وما الميزات التي قد ترغب في وضعها في الاعتبار لاستخدام غرفة الاجتماعات أو غرفة الدراسة.

سيوفر البحث في جوجل عن انعكاس الشاشة مجموعة كبيرة من النتائج - العديد منها ليست حلول خاصة بـ "انعكاس الشاشة". بدأت فيوتشر سورس مؤخرًا في تغطية هذه الفئة الناشئة - وإليك بعض الأمثلة لما هو ليس نظام خاص بانعكاس للشاشة.

تحتوي غرفة عمليات البيت الأبيض على أحد أشهر الأمثلة على نظام قائم على الكابلات من أجل التعاون. ينقر الرئيس على شاشة التحكم أمامه لتحديد المحتوى (أو المصدر) الذي يريد رؤيته - والشاشة أو الشاشات التي يريد مشاهدتها. تعتبر هذه الأنظمة من إيه إم إكس وكريسترون وأنظمة أخرى مثالية للتعاون - ولكنها مكلفة في التثبيت - والصيانة - وهي مثال جيد لأنظمة انعكاس الشاشة غير اللاسلكية عالية الأداء.

Skype و GoToMeeting و WebEx هي أنظمة تعاون شائعة عبر الإنترنت حيث يستخدم المشتركون والزوار السحابة لمشاركة الشاشات والفيديو المباشر والصوت أثناء جلسة تعاون. أنظمة النسخ المتطابق للشاشة هي أنظمة محلية - مما يتيح لك الاحتفاظ بمعلوماتك السرية داخل غرفة الاجتماعات - دون الحاجة إلى الاتصال بالإنترنت.

يمكن استخدام حلول المستهلك الشائعة مثل أبل تي في أو محولات كروم كاست تقنيًا لمشاركة المحتوى من جهاز كمبيوتر - ولكن كان الغرض منها هو تنزيل المحتوى الموجود بالفعل على الإنترنت إلى شاشتك. تستخدم أنظمة انعكاس الشاشة المحتوى الخاص بك الذي تستخدمه للمشاركة مع غرفة الاجتماعات أو قاعة المحاضرات.

إذا كان لديك مجموعة من مستخدمي ماك لديهم أجهزة ماك بوك برو جديدة، وأجهزة ماك بوك آير الأقدم - وعدد قليل من أجهزة آيباد وآيفون، فيمكنك استخدام إما زر الإرسال المادي أو بروتوكول آير بلاي الأصلي من أبل أو تطبيق انعكاس الشاشة مثل إنستا شو لعكس شاشتك .

لعكس شاشتك لمشاركة باوربوينت وجداول بيانات إكسل ومحتويات أخرى فستجري العملية نفسها - باستثناء أن ميرا كاست هو بروتوكول انعكاس الشاشة الأصلي بدلاً من آير بلاي.

لعكس شاشتك لمشاركة باوربوينت وجداول بيانات إكسل ومحتويات أخرى فستجري العملية نفسها - باستثناء أن ميرا كاست هو بروتوكول انعكاس الشاشة الأصلي بدلاً من آير بلاي.

أزرار جهاز الإرسال - قم بتوصيل جهاز إرسال مثل زر إتش دي إم آي بإنستا شو بجهاز الكمبيوتر المحمول الذي يعمل بنظام ويندوز وستكون متصلاً في ثوانٍ

ميرا كاست- قم بالتمرير أو النقر للوصول إلى مركز التحكم واستخدامه لتحديد انعكاس الشاشة من جهازك. سيجد ما إذ كانت الشاشة على نفس شبكة جهازك

تطبيقات البرامج - استخدم برنامجًا متوافقًا مع جهاز الاستقبال الخاص بك لإرسال شاشتك إلى جهاز الاستقبال.

تحتوي هذه الأجهزة على أنظمة تشغيل مغلقة - ولكن يمكن لزر إرسال إتش دي إم آي لاسلكي مثل إنستا شو توصيل المعلومات ونقلها إلى الشاشة.

Read more about this – click here

Linux devices such as data servers, Raspberry Pi and Beagle Board are increasingly common – and output critical video content for engineering projects and load information. You can use an HDMI transmitter button to share wirelessly. 

Read more about Linux and engineering screen mirroring here: screen mirroring information

If you have a group of Mac users with new MacBook Pro’s, older MacBook Air’s – and a smattering of iPads and iPhones , you can use either a physical transmitter button, Apple’s native AirPlay protocol or a screen mirroring application such as InstaShare to mirror your screen.

• Transmitter Buttons- Connect a transmitter such as an InstaShow USB-C button
• AirPlay – Swipe or click to access and use the Control Center to select screen mirroring from your device. It will find the display if it is on the same network as your device
• Software applications – use a software program that is compatible with your receiver to transmit your screen to the receiver.

To mirror your screen to share PowerPoints, Excel spreadsheets, and other content – the process is the same – except that Miracast is the native screen mirroring protocol instead of Airplay.

• Transmitter Buttons- Connect a transmitter such as an InstaShow HDMI button to your Windows notebook and you are connected in seconds
• Miracast – Swipe or click to access and use the Control Center to select screen mirroring from your device. It will find the display if it is on the same network as your device
• Software applications – use a software program that is compatible with your receiver to transmit your screen to the receiver.

To mirror your screen to share PowerPoints, Excel spreadsheets, and other content – the process is the same – except that Miracast is the native screen mirroring protocol instead of Airplay.

Transmitter Buttons- Connect a transmitter such as an InstaShow HDMI button to your Windows notebook and you are connected in seconds

Miracast – Swipe or click to access and use the Control Center to select screen mirroring from your device. It will find the display if it is on the same network as your device.

Software applications – use a software program that is compatible with your receiver to transmit your screen to the receiver.

These devices have closed operating systems – but a wireless HDMI transmitter button such as the InstaShow can connect and transmit information to the screen.

Read more about this – click here

Linux devices such as data servers, Raspberry Pi and Beagle Board are increasingly common – and output critical video content for engineering projects and load information. You can use an HDMI transmitter button to share wirelessly. 

Read more about Linux and engineering screen mirroring here: screen mirroring information

Professional screen mirroring systems are perfect for businesses – and the technology makes it easy to share presentations or reports, brainstorm, and collaborate in a meeting room or huddle space – without having to pass a cable around to switch presenters. Most companies use a simple button system, where a presenter plugs in a button – then taps to present their content on the screen. It's easy – reliable – and intuitive, enabling the meeting to stay focused on content rather than hassle with loading and running apps on their devices. The most popular ones also enable you to interact on a touch screen with a Windows computer and can support both AirPlay and Miracast for mobile devices.

For K-12 and higher education collaboration, screen mirroring systems are rapidly replacing complicated and expensive cable-based systems. With a wireless screen mirroring system, you can connect up to four different sources on the screen at the same time – using either transmitter buttons, application, or standard screen mirroring protocols such as AirPlay or Miracast. The best part is that you can present from anywhere in the room – perfect for flipped classrooms with mobile displays.

Movie lovers can stream movies right from a Blu-Ray player – but gamers and event managers appreciate the ability to switch sources with the tap of a button. Switch from screen to screen in a gaming tournament, or switch back and forth from childhood photos and videos, and live camera feeds at a wedding reception. Because the InstaShow HDMI buttons switch instantly without any software – it can easily replace an expensive HDMI switcher for event venues.

Setting up a screen mirroring systems can be as easy as connecting a receiver and putting transmission buttons on the meeting room table. On the opposite end of the spectrum, some screen mirroring systems that use a corporate network require extensive port configuration, changes to Quality of Service (QoS), and testing to ensure the corporate network performance is not adversely affected.

The other element is what the user has to do to use the system. For example, do they need to log onto a special network to use AirPlay, Miracast, or a proprietary app– or can they connect via a transmitter? Also, some companies “lockdown” their notebooks and don’t allow any additional applications to be installed by the user. If your meeting room has visitors – look for a screen mirroring system that avoids having to load software on the computer before using.

One advantage of screen mirroring systems over traditional cables is the ability to either switch presenters on display – or have multiple presenters share content on display at one time. The best systems enable you to and intuitively switch presenters with a touch of a button on a transmitter. Software programs can also be easy to switch – but can be a challenge if you want to use a device such as a media player or camera. Look for a system where you can use either a transmitter button or application that enables you to quickly switch presenters in a room without having a complicated process.

While traditional cables are typically secure, not all screen mirroring systems are secure. For example, a home entertainment screen mirroring system may be fine for broadcasting a movie for your media room, the lack of encryption could enable a hacker or employee to wirelessly “listen in” on a confidential salary review presentation at a startup. Other screen mirroring systems that use the company network may open the door to malicious hackers who take control of passwords – or even deny service.

There are two security concerns for screen mirroring.

Network Risk – screen mirroring device security is especially important for companies and education applications since they could be used to gain unauthorized access to the network. In 2019, at least were found to have significant vulnerabilities nine different wireless screen mirroring systems.  Look for a wireless screen mirroring system that minimizes the network attack profile and been checked out by cybersecurity experts.  Also- if a vulnerability is found, you want a manufacturer that has enough resources to stand behind the product and address the issue effectively. These companies typically provide white security papers and other resources to enable you to ensure that your network will be secure when using a screen mirroring system.

Content Risk – effective collaboration involves the free exchange of ideas and data – in a confidential meeting. Since wireless screen mirroring involves broadcasting data wirelessly, you want to make sure your spreadsheets, presentations, and reports sent to the screen cannot be received by an unauthorized employee or other bad actors. Imagine having an executive salary review or reorganization session re-broadcast or recorded by a disgruntled employee.Look for a between the transmitter and receiver screen mirroring system that uses advanced encryption . For example, the BenQ InstaShow system encrypts all the transmissions from the device before transmitting it to the receiver. By contrast, many home entertainment screens mirroring systems and some lower-cost commercial systems don’t encrypt the data – increasing the risk of someone gaining access to confidential information.

Like all technologies, the cost of screen mirroring will vary depending on the type of product and usage model. For example, you can use an AirPlay with an Apple TV for just a couple hundred dollars – or spend up to $4000 on a secure button-based system designed for a corporate meeting room.

In general, the less expensive systems typically can be more complicated to use with multiple presenters, and may not have many security protection features many organizations are looking for. Other features such as interactive touchback, 4K support, and the ability to support different types of devices generally cost more – but can make your meetings more effective – lowering your meeting room cost.Finally, several screen mirroring systems have extended subscription plans for software updates to ensure adequate security and new features. These subscriptions can cost as much as $400 per year per device.

Wireless screen mirroring systems are relatively new on the market, but you can find more detailed answers to your questions on the BenQ Wireless Presentation System page which has more detailed articles on common topics such as using Mac’s or AV devices with a screen mirroring system as well as comparison of popular models. 

The BenQ InstaShow platform makes it easy for everyone to effectively collaborate by enabling them to instantly present from nearly any device.  It uses the popular button approach to simply connect to your computer, camera, or media player by plugging in a button.  No software, no network, and with the InstaShow S, you can have four different presenters mirroring their screens at the same time.