本项目只提供室内场所的地图.在超出标准(GPS、WiFi 等)的这些地方增强导航并没有什么特别之处.

This project just provides maps for indoor places. It doesn't do anything special to augment navigation in these places beyond the standard (GPS, WiFi, etc).

当他们谈论使用 Wifi 和蜂窝数据进行(增强)定位时，他们谈论的是他们在常规 Google 地图上使用的相同内容.这些数据是从手机信号塔信息中收集的，Wifi 的东西是从谷歌街景汽车中嗅出的，然后随着使用设备的人与这些设备接触并将信息发送回谷歌，通过用户数据进行增强.

When they talk about (augmenting) positioning with Wifi and Cellular data, they are talking about the same stuff they use on the regular Google maps. This data is collected from cell tower info, and the Wifi stuff is sniffed from the Google street-view cars and then augmented by user-data as people with devices come into contact with these devices and send info back to Google.

它不是非常准确 - 甚至不如 GPS 准确.这是一种球场"估计.例如，如果 Google 街景汽车在经过您家时检测到您的 WiFi 信号——如果您没有 GPS，并且 Google 地图看到了您的 WiFi 盒子，它可以估计您在距离您家几百英尺的地方.Google 街景汽车检测到了信号.

It is not very accurate - or even accurate as GPS. It is kind of a "ballpark" estimate. For example, if a Google street-view car detected your WiFi signal when it drove by your house - if you had no GPS, and Google Maps saw your WiFi box, it could estimate that you were somewhere within a few hundred feet of where the Google Street View car detected the signal.

不如 GPS 准确 - 但如果您在几百英尺范围内精简而不是不知道"，也不会太糟糕.简而言之 - 这些来源不会为您提供更好或更精细的室内场所定位.如果您在里面并且不在 GPS 覆盖范围内，它们会很好 - 例如 - 能够告诉您您在该特定建筑物中.

Not as accurate as GPS - but not too bad if you conciser within a few hundred feet better than "no idea". In short - these sources to not give you better or more refined positioning of indoor places. They would be good - for example - to be able to tell you that you are in that particular building if you were inside, and out of GPS coverage.