Simplest is to just use a camera and take a picture of the whiteboard at critical stages
A more advanced way would be to go fully digital, using a smartboard wall type of solution (ie. big hunking display)
Cheaper solutions work by way of using the computer for the display, a normal projector, and special hardware (like pens) to detect where on the wall you're pointing or doing things
I've tried all three and by far I liked the full display the best, but it is quite expensive in some cases.
A good enough solution is the one that integrates with the computer.
The solution I tried had a suction cup rod that you hung up on the whiteboard, along one side, connected to a computer through a long USB cable.
Then you had special "pens" that were just a normal whiteboard pen with a holder around it. This holder had some kind of radio connection with the rod, and due to the length of the rod, the rod could quite accurately pinpoint the location of the pen on the whiteboard. It also made a clickety sound when you pressed the pen onto the whiteboard, so it knew when you were actually drawing with it.
This was then relayed back to the computer, so everything you drew would be captured, and could be replayed later, line by line if you wished. There was also an eraser that came with it, but it wasn't quite as accurate.
I don't remember the price of the whole setup, but apart from the normal computer, the rest came in under $1000.
The full digital smartboard I've tried was basically a 50" LCD with pens that communicated with the computer. This of course had features such as multiple pages (easily switch back and forth, bring up diagrams from earlier discussions, etc.), full replayability, could stream contents live to participants not in the same room, etc.
There's also setups that use a projector, typically mounted in the ceiling pointing down on the wall, and again communicating with a computer, using the projected display instead of a LCD display. Never tested this.
The cheapest solution is the digital camera way, and since most phones comes with adequate cameras these days you already have what you need.
I use my smartphone camera and Evernote.com ... it's a cheap solution but I'm not fully pleased with it. Like you I think there has to be a better solution.
I already used a smartboard based on a projector and sprecial pens, but I had the feeling, that it was not fully accepted by the team, they try to avoid writing on it, etc. I think it just doesn't feels right.
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有很多方法：
我已经尝试了这三种方法，到目前为止，我最喜欢完整的显示，但在某些情况下它相当昂贵。
一种足够好的解决方案是与计算机集成的解决方案。
我尝试的解决方案是使用吸盘杆，将其挂在白板上的一侧，通过长 USB 电缆连接到计算机。
然后你就有了特殊的“笔”，它只是一支普通的白板笔，周围有一个支架。该支架与杆有某种无线电连接，并且由于杆的长度，杆可以非常准确地确定笔在白板上的位置。当您将笔按在白板上时，它还会发出咔嗒声，因此它知道您何时真正用它绘图。
然后，这些信息会被转发回计算机，因此您绘制的所有内容都将被捕获，并且如果您愿意，可以稍后逐行重播。它还附带了一块橡皮擦，但它不太准确。
我不记得整套设备的价格，但除了普通电脑外，其余的价格都在 1000 美元以下。
我尝试过的全数字智能板基本上是一个 50 英寸 LCD，带有与计算机通信的笔。当然，它具有多页面（轻松来回切换、调出先前讨论的图表等）、完整的功能等功能。可重播性，可以将内容实时传输给不在同一房间的参与者等。
还有一些设置使用投影仪，通常安装在天花板上，指向墙壁，并再次与计算机通信，使用投影显示器而不是液晶显示器从未测试过这一点。
最便宜的解决方案是数码相机方式，而且由于现在大多数手机都配备了足够的相机，因此您已经拥有了所需的东西。
There are many ways:
I've tried all three and by far I liked the full display the best, but it is quite expensive in some cases.
A good enough solution is the one that integrates with the computer.
The solution I tried had a suction cup rod that you hung up on the whiteboard, along one side, connected to a computer through a long USB cable.
Then you had special "pens" that were just a normal whiteboard pen with a holder around it. This holder had some kind of radio connection with the rod, and due to the length of the rod, the rod could quite accurately pinpoint the location of the pen on the whiteboard. It also made a clickety sound when you pressed the pen onto the whiteboard, so it knew when you were actually drawing with it.
This was then relayed back to the computer, so everything you drew would be captured, and could be replayed later, line by line if you wished. There was also an eraser that came with it, but it wasn't quite as accurate.
I don't remember the price of the whole setup, but apart from the normal computer, the rest came in under $1000.
The full digital smartboard I've tried was basically a 50" LCD with pens that communicated with the computer. This of course had features such as multiple pages (easily switch back and forth, bring up diagrams from earlier discussions, etc.), full replayability, could stream contents live to participants not in the same room, etc.
There's also setups that use a projector, typically mounted in the ceiling pointing down on the wall, and again communicating with a computer, using the projected display instead of a LCD display. Never tested this.
The cheapest solution is the digital camera way, and since most phones comes with adequate cameras these days you already have what you need.
我使用智能手机摄像头和 Evernote.com……这是一个便宜的解决方案，但我对此并不完全满意。和你一样，我认为必须有更好的解决方案。
我已经使用了基于投影仪和特殊笔的智能板，但我有一种感觉，它没有被团队完全接受，他们试图避免在上面书写，等等。我认为这感觉不对。
I use my smartphone camera and Evernote.com ... it's a cheap solution but I'm not fully pleased with it. Like you I think there has to be a better solution.
I already used a smartboard based on a projector and sprecial pens, but I had the feeling, that it was not fully accepted by the team, they try to avoid writing on it, etc. I think it just doesn't feels right.