| 摘要 |
A detector, positioned at a first geographic location, receives a message from a mobile device that is sent without a request from the detector and via a short-range communications protocol, such as Bluetooth® or other WPAN. The detector parses the message to obtain data associated with the mobile device, such as extracting a media access control (MAC) address, a device type, or other information from the message. The detector may further identify an attribute, such as a signal power loss or frequency, associated with the received message. A second geographic location, associated with the mobile device, may be determined based on the attribute. The detector may also identify an associated user based on the data associated with the mobile device. The local device may receive data identifying, for example, the user, the second geographic location, or preference data related to user. |
| 主权项 |
1. A method comprising:
receiving, by a processor associated with a detector, a message sent from a mobile device, wherein the mobile device sends the message without receiving a request from the detector, and wherein the detector is positioned at a first geographic location; parsing, by the processor, the message to obtain data associated with the mobile device; obtaining, by the processor and based on the data associated with the mobile device, data identifying a user associated with the mobile device; determining, by the processor, a local device associated with the first geographic location; forwarding, by the processor, the data identifying the user to the local device; identifying, by the processor, an attribute value associated with the message, wherein the attribute value includes a received signal strength of the message; determining, by the processor and based on the attribute value, a second geographic location associated with the mobile device, wherein determining the second geographic location includes:
identifying, based on the data associated with the mobile device, a device class associated with the mobile device,determining, based on the device class, a transmission signal strength associated with the message,determining a distance between the mobile device and the detector based on a change between the transmission signal strength and the received signal strength, anddetermining the second geographic location based on the distance and the first geographic location; and forwarding, by the processor, data identifying the second geographic location to the local device. |
