Bluetooth device and communication method thereof
A technology of bluetooth device and communication method, which is applied in the field of bluetooth, can solve the problems of destroying data communication and being easy to be intercepted, and achieve the effect of improving security and preventing interception
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[0067] Example 1
[0068] The detailed flowchart of the Bluetooth device communication method in the embodiment of the present invention is given below in conjunction with the accompanying drawings, such as figure 2 As shown, specifically including:
[0069] In step 201, the host device A conforming to the Bluetooth protocol sends out an inquiry command packet conforming to the Bluetooth protocol standard format in a broadcast form, and waits for the response information returned by the surrounding peer device B, and the nearby device B conforming to the Bluetooth protocol receives the information sent by the device A inquiry command packet;
[0070] Step 202: Device B parses the received data packet, responds according to the specific command content in the data packet, and carries its own first address BD_ADDR in the response message B ’;
[0071] In this embodiment, the first address is the 6-byte, globally unique address BD_ADDR after device B leaves the factory. B ’As an example...
Example Embodiment
[0103] Example 2
[0104] The difference from Embodiment 1 is that key negotiation uses an address that uniquely identifies the Bluetooth device. The specific process is as follows:
[0105] Step 1. Host device A conforming to the Bluetooth protocol sends out an inquiry command packet conforming to the Bluetooth protocol standard format in the form of broadcast, and waits for the response information returned by the surrounding peer device B, and device B near device A that conforms to the Bluetooth protocol receives the information sent by device A inquiry command packet;
[0106] Step 2: Device B parses the received data packet, and responds according to the specific command content in the data packet, and carries its own first address BD_ADDR in the response message B ;
[0107] In this embodiment, the second address is the 6-byte, globally unique address BD_ADDR after device B leaves the factory. B ’As an example. Before device B responds to the inquiry of device A, according to ...
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