Recently, some new voices have been circulated in the market, and the solution of the combination of interactive whiteboard and projector is outdated. We have elaborated many times on the whiteboard and the big screen which are better or worse. Then we need to give you an explanation about the whiteboard and interactive projection. The author's point of view is very clear-the solution of whiteboard + projection (hereinafter referred to as IWB) is slightly more expensive than the interactive projector (hereinafter referred to as IPJ). In terms of hardware technology, it can be said to be better than IPJ. , Training, resources and other soft factors. My reasons are as follows-
1) Stability and maturity
The world's first IWB went offline at SMART's factory in 1991. It has more than 20 years of development history. Hundreds of millions of teachers and students around the world have proved that IWB has improved the efficiency of classroom teaching. IWB has been proven to be stable enough , Reliable enough products. In the actual application process of IWB, the failure rate and repair rate are controlled at a very low level. Usually, after the school purchases, it does not require a lot of product maintenance. On the contrary, the development of IPJ is only a few years, and the number of users differs from IWB by N orders of magnitude. The maturity and stability of each product requires a lot of user experiments and market accumulation. Even products like the iPhone will encounter a series of events such as paint doors and antenna doors. Problems like this are more common in the interactive field. It takes a long time for the infrared whiteboard to solve the problems of positioning drift and sunlight interference. Therefore, from the perspective of stability and maturity, I don't think it is the best choice to buy IPJ now.
2) Board material selection
It can be said that the manufacturer of interactive whiteboards requires a large R & D team to do the board material selection. There are many harsh requirements on the board surface-the board must be flat and the hardness should be as high as possible The sudden impact from the outside, the deformation range of long-term use should be small in the environment with different temperatures and humidity, the board weight should be as light as possible, it should be compatible with water-based pen writing, the touch feel should be smooth and not astringent, and the surface is not easy to stay Stains such as handprints must not have a sun effect. The board must have a gain effect on the projected image, and the surface must have an anti-scratch coating. If IPJ is adopted, this part of the work must be done by the user himself. Our technical team is very difficult to find such a suitable whiteboard surface, let alone the user to customize it. And according to the characteristics of the industry, the price of plates that can meet the above conditions is not cheap. If this part of the cost is taken into account, IPJ may not be cheaper than the IWB + ordinary projection solution.
3) Touch method
The vast majority of IPJs on the market can only provide a special stylus touch method. For IWB, currently supporting direct finger touch has become the industry standard. Users provide solutions for direct finger touch, and even the Prometheus whiteboard, which is most focused on electromagnetic pen technology, also released a hand-touch whiteboard based on capacitive technology in the past two years. Why is this happening? Because the use of finger touch is the most direct, convenient, and customary touch method for users. People only find it more convenient to use the stylus when it involves a lot of writing operations. All the remaining operations are touch-sensitive. This is also the time when it is difficult for us to imagine that if all mobile phones need a special stylus for touch control, almost all touch-screen phones now use hand-touch screens, even if they are equipped with a writing pen— -For example, the Samsung GalaxyNote series, which is also based on the support of hand touch, in order to achieve the writing operation with a pressure-sensitive pen peak, it is equipped with an electromagnetic pen. Finger touch is a major trend in the touch industry, which is irreversible. The series of problems encountered during the actual installation and use of the stylus are far beyond the inconvenience of manipulation. The pen is lost, broken, dead, the pen tip is polished, the sound of writing on the board is too harsh, etc. Wait a minute, and the like will be a very real problem in front of IT managers.
4) Touch feel
The concept of feel is not easy to measure with data to a large extent, and there are many factors that can affect the feel of touch. Factors such as tracking speed, sensing height, interference resistance, number of touch points, touch method, false recognition rate, sensing force, board material, software optimization, etc. can all affect the touch feel. Although many user experience indicators are not easy to quantify, as long as people use it for a period of time, I believe most people will get the same answer. This is why today ’s smartphones can make calls, send text messages, open web pages, and chat on WeChat, but the iPhone sells for more than 5,000, and the cottages with similar screen sizes and touch controls only cost more than 500-because they give users The experience of using is very different. In the field of IWB, the concept of user experience is also applicable. I believe that users who are used to IWB such as SMARTBoardSBX800 and then use any brand of IPJ are similar to users who are used to iPhone to use a copycat machine. It's almost impossible to accept IPJ's touch.
5) Shape design and debugging difficulty
The shape of all IWBs has a fixed number of dimensions, and their height, width, and border color are not designed indiscriminately. Among them, both the applicability of installation in the classroom and the corresponding size of the projector itself must be considered. How easy is it to adjust the picture at the time. For example, the SMART integrated projector and IWB integrated system, considering the way they are integrated and installed at the beginning of the design, not only has a beautiful overall design, but also has powerful and practical functions (for example, SBX885ix2 even has a The IWB system can be connected to three computers at the same time, and only needs a switch button on the ECP panel. The display function and touch function will be switched to different computers simultaneously, and no need to plug and unplug any cables at all). The debugging process is also extremely simple. All the problems in one drawing are all solved. If IPJ is used, the size, installation height, indoor clearance environment, projector position, and touch positioning of the customized whiteboard are all problems that need to be solved one by one. Be cautious and endless troubles.
6) Software and hardware cooperation
Although SMART is also cooperating with manufacturers such as Epson, it has launched a version of NotebookforBrightLink. But there is a common sense of making software that we cannot but pay attention to, that is, software running on a specific type of device must be customized and optimized with the device to achieve the best results. In the process of software development, you must call the corresponding interface of the hardware to make the software run more smoothly. In the most popular words, take a SMART IWB and an Epson IJP, run the same version of the Notebook software, use the same pen tool to write, compare and see what the tracking speed and fluency are all clear. Such examples abound in the software industry. The same core Android system is used on mobile phones with similar hardware configurations. The user experience is completely different-because the software and hardware optimization are different; the same is Microsoft Office software, OfficeforMac2011 and Officeforwindows2013 are There is a big difference, because the investment in optimized R & D power is different.
In summary, every product, technology and solution has its own reason. It is not comprehensive enough to compare the price and certain functions. Ten years of trees, a hundred years of trees, and the purchase of any educational technology equipment are a major issue related to the growth of a generation. I am not opposed to technological innovation, and I love to explore new things, but personally, if I can decide to purchase some type of interactive products, I still have to use the actual use of teachers who deal with these devices every day. Start from experience and think twice.
This container is designed for single-use, making it ideal for take-out
meals, picnics, parties, and other occasions where disposable packaging
is required. It has a tight-fitting lid that seals tightly to prevent
any spills or leaks.
The container is available in various sizes to accommodate different
portion sizes and food types. It is microwave-safe, allowing you to
easily reheat your food without transferring it to another dish.
The clear plastic design allows for easy visibility of the contents,
making it convenient for both the user and the recipient. It is also
stackable, saving space in storage or during transportation.
Overall, the Plastic Disposable Container offers a convenient and
hygienic solution for food storage and transportation, making it a
must-have for any foodservice establishment or individual on-the-go.
Plastic Disposable Container,Food Grade Disposable Plastic Bowl,Disposable Plastic Bowl,Aluminum Foil Containers With Lids
walson groupe , https://www.walsongroup.com