济南冠宇智能科技有限公司

用的是音频识别的技术。店中的设备发射出一种特殊频率的音频，手机接收后进行确认识别。

bluetooth 4.0 ibeacon技术

从形容上来看，应该是一种射频技术，这种技术一点也不陌生，早期已经应用在停车场道闸，或etc自动收费上。建议你可以找个做一卡通的人聊聊。

呵呵，其实有个更简单的实现，只要你来我的公司通过了wifi的验证，那么你就算签到完成。这个好处在于：1.容易实现。2.不需要额外购置设备。缺点在于，wifi要是挂了就谁都没有办法签到了。

能够签到的地方必须有一个设备，这设备会发射信号（李益锋说的Shopkick Signal）。当你的iPhone来到这个地方的时候，会通过耳机插口接受信号触发签到，这样就可以了。

可以看签到Demo：/2010/08/03/shopkick/

百度的结果：

... But to make it work, they needed extreme accuracy, better than the GPS accuracy of 50 to 1000 yards. So they created an ingenious little box, called theShopkick Signal, which emits an inaudible audio sync that your phone can receive in the store, but not outside of it. “We call this the first ‘presence technology’, versus GPS being ‘vicinity technology,’” says Roeding, “and that’s a huge difference. Because if you think about location, the massive value gets unlocked in the last feet.” The Signal’s sonic technology also helps Shopkick avoid the privacy issues that often come with location-based apps. Neither the box nor … 次数用完API KEY 超过次数限制