Abstract: The present invention is adapted to the technical field of communication, and provides a stop announcement system and a method thereof. The stop announcement system comprises: at least one platform beacon disposed on at least one stop site of a transportation means for identifying a position message of the stop site, and sending a message of position change according to the position change of the transportation means relative to the stop site; and at least one stop announcement device disposed on the transportation means for receiving the message of position change and sending a corresponding stop announcement message when the transportation means moves into a range of a preset communication distance of the at least one platform beacon; wherein the stop announcement message at least comprises a prompt message of entering into the stop site and/or a prompt message of stopping on the stop site and/or a prompt message of leaving the stop site.

Abstract: The present invention relates to a field of communication technology that provides a method, system and device of location authentication. The method comprises the following steps: the mobile device receives the signal marking the position information of the location base station sent by the location base station within the same region. The mobile device would obtain the position information of the location base station after analyzing the signal; the location base station would send the position information to the location authentication server to obtain the location authentication that it is in the same region with the location base station. Thus, this invention performs the location authentication of the mobile device staying in the same region with the location base station.