Method and related bluetooth peripheral device for searching for target bluetooth device

Abstract

The present invention proposes a method for locating a target Bluetooth device using a Bluetooth peripheral device without a display screen. The method includes: providing a Bluetooth peripheral device without any display screen, wherein the Bluetooth peripheral device stores a pairing key corresponding to the target Bluetooth device; receiving a search instruction from a user through the Bluetooth peripheral device; and using the Bluetooth peripheral device to locate the target Bluetooth device according to the search instruction.

Claims

1. A method for locating the position of a target Bluetooth device (110), comprising: providing a Bluetooth peripheral device (120), wherein, The Bluetooth peripheral device (120) stores a pairing key corresponding to the target Bluetooth device (110), but the Bluetooth peripheral device (120) does not include any display screen; it receives a search instruction from a user through the Bluetooth peripheral device (120); and uses the Bluetooth peripheral device (120) to locate the target Bluetooth device (110) according to the search instruction; wherein, the operation of using the Bluetooth peripheral device (120) to locate the target Bluetooth device (110) according to the search instruction includes: using the Bluetooth peripheral device (120) to detect the Bluetooth signal emitted by the target Bluetooth device (110); using the Bluetooth peripheral device (120) to estimate the direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (120) based on the Bluetooth signal emitted by the target Bluetooth device (110), and generating a corresponding direction estimation result; and using the Bluetooth peripheral device (120) to generate a direction indication. The message indicates an estimated direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (120), wherein the direction indication information includes a predetermined vibration pattern, a predetermined sound, or a predetermined voice content, but does not include any image.

2. The method as described in request item 1, wherein, The operation of using the Bluetooth peripheral device (120) to locate the target Bluetooth device (110) according to the search instruction includes: using the Bluetooth peripheral device (120) to estimate a relative distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110) based on the Bluetooth signal emitted by the target Bluetooth device (110), and generating a corresponding distance estimation result; and using the Bluetooth peripheral device (120) to generate a distance indication message to express an estimated distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110).

3. The method as described in claim 2, wherein, The operation of estimating a relative distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110) using the Bluetooth peripheral device (120) includes: measuring the strength of the Bluetooth signal emitted by the target Bluetooth device (110) using the Bluetooth peripheral device (120) to estimate the relative distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110).

4. The method as described in request item 1, wherein, Estimating the direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (120) using the Bluetooth peripheral device (120) includes: calculating an angle of arrival (AoA) or an angle of departure (AoD) corresponding to the target Bluetooth device (110) based on the Bluetooth signal emitted by the target Bluetooth device (110); and determining a relative direction of the target Bluetooth device (110) based on at least one of the angle of arrival (AoA) and the angle of departure (AoD) information.

5. A Bluetooth peripheral device (120) for locating a target Bluetooth device (110), comprising: a storage circuit (221) configured to store a pairing key corresponding to the target Bluetooth device (110); a communication circuit (222) configured to perform Bluetooth communication with the target Bluetooth device (110); a startup circuit (224) configured to receive a search instruction from a user; an instruction information generating device (225); and a control circuit (229) coupled to the storage circuit (221), the communication circuit (222), the startup circuit (224), and the instruction information generating device (225), but the Bluetooth peripheral device (120) does not include any display screen; wherein, The control circuit (229) is configured to control the communication circuit (222) to locate the target Bluetooth device (110) when the startup circuit (224) receives the search instruction; wherein, the control circuit (229) is also configured to use the communication circuit (222) to detect the Bluetooth signal emitted by the target Bluetooth device (110); and to estimate the direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (120) based on the Bluetooth signal emitted by the target Bluetooth device (110), and generate a corresponding direction estimation result; wherein, the control circuit (229) is also configured to control the indication information generating device (225) to generate a direction indication message based on the direction estimation result, so as to express the estimated direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (120); wherein, the direction indication message includes a predetermined vibration mode, a predetermined sound, or a predetermined voice content, but does not include any image.

6. The Bluetooth peripheral device (120) as described in claim 5, wherein, The control circuit (229) is also configured to estimate a relative distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110) based on the Bluetooth signal emitted by the target Bluetooth device (110), and generate a corresponding distance estimation result; wherein, the control circuit (229) is also configured to control the indication information generating device (225) to generate a distance indication message based on the distance estimation result, so as to express an estimated distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110).

7. The Bluetooth peripheral device (120) as described in claim 6, wherein, The control circuit (229) is also configured to use the communication circuit (222) to measure the strength of the Bluetooth signal emitted by the target Bluetooth device (110) in order to estimate the relative distance between the Bluetooth peripheral device (120) and the target Bluetooth device (110).

8. The Bluetooth peripheral device (120) as described in claim 5, wherein, The control circuit (229) is also configured to calculate, based on the Bluetooth signal emitted by the target Bluetooth device (110), an angle of arrival (AoA) or an angle of departure (AoD) corresponding to the target Bluetooth device (110), and to determine a relative direction of the target Bluetooth device (110) based on at least one of the angle of arrival (AoA) and the angle of departure (AoD).

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