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

Abstract

This invention proposes a method for locating a target Bluetooth device using a triggering device without a display screen. The method includes: providing a Bluetooth peripheral device, wherein the Bluetooth peripheral device stores a pairing key corresponding to the target Bluetooth device; providing a triggering device, wherein the triggering device does not have any display screen; establishing a wireless signal connection between the triggering device and the Bluetooth peripheral device; receiving a search instruction from a user through the triggering device; transmitting a search request to the Bluetooth peripheral device through the wireless signal connection using the triggering device; and using the Bluetooth peripheral device to locate the target Bluetooth device based on the search request.

Claims

1. A method for locating the position of a target Bluetooth device (110), comprising: providing a Bluetooth peripheral device (122), wherein, The Bluetooth peripheral device (122) stores a pairing key corresponding to the target Bluetooth device (110); a trigger device (124) is provided, wherein the trigger device (124) does not have any display screen; a wireless signal connection is established between the trigger device (124) and the Bluetooth peripheral device (122); a search instruction issued by a user is received through the trigger device (124); a search request is transmitted to the Bluetooth peripheral device (122) through the wireless signal connection using the trigger device (124); and the Bluetooth peripheral device (122) is used to locate the target Bluetooth device (110) according to the search request; wherein the operation of using the Bluetooth peripheral device (122) to locate the target Bluetooth device (110) according to the search request includes: using the Bluetooth peripheral device (122) to detect the Bluetooth signal emitted by the target Bluetooth device (110); The Bluetooth peripheral device (122) estimates the direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (122) based on the Bluetooth signal emitted by the target Bluetooth device (110), and generates a corresponding direction estimation result; the Bluetooth peripheral device (122) transmits the direction estimation result to the triggering device (124) through the wireless signal connection; and the triggering device (124) generates a direction indication message to express the estimated direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (122), wherein the direction indication message 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 (122) to locate the target Bluetooth device (110) according to the search request includes: using the Bluetooth peripheral device (122) to estimate a relative distance between the Bluetooth peripheral device (122) 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; using the Bluetooth peripheral device (122) to transmit the distance estimation result to the triggering device (124) through the wireless signal connection; and using the triggering device (124) to generate a distance indication message to express an estimated distance between the Bluetooth peripheral device (122) 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 (122) and the target Bluetooth device (110) using the Bluetooth peripheral device (122) includes: measuring the strength of the Bluetooth signal emitted by the target Bluetooth device (110) using the Bluetooth peripheral device (122) to estimate the relative distance between the Bluetooth peripheral device (122) 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 (122) using the Bluetooth peripheral device (122) 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 search device (120) for locating a target Bluetooth device (110), comprising: a Bluetooth peripheral device (122) including: a first storage circuit (221) configured to store a pairing key corresponding to the target Bluetooth device (110); a first communication circuit (223) configured to perform Bluetooth communication with the target Bluetooth device (110); a first control circuit (227) coupled to the first storage circuit (221) and the first communication circuit (223); and a triggering device (124) including: a second communication circuit (243) configured to perform wireless communication with the first communication circuit (223); and a start circuit (245) configured to receive a search instruction from a user. An instruction information generating device (247); and a second control circuit (249), coupled to the second communication circuit (243), the activation circuit (245), and the instruction information generating device (247), and configured to control the second communication circuit (243) to establish a wireless signal connection with the first communication circuit (223), and to control the second communication circuit (243) to transmit a search request to the Bluetooth peripheral device (122) through the wireless signal connection when the activation circuit (245) receives the search instruction; wherein, The triggering device (124) does not have any display screen. The first control circuit (227) is configured to, when the first communication circuit (223) receives the search request, control the first communication circuit (223) to locate the target Bluetooth device (110). The first control circuit (227) is also configured to, using the Bluetooth peripheral device (122), detect the Bluetooth signal emitted by the target Bluetooth device (110); based on the Bluetooth signal emitted by the target Bluetooth device (110), estimate the direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (122) and generate a corresponding direction estimation result; and control the first communication circuit (223) to transmit the direction estimation result to the triggering device (124) via the wireless signal connection. The second control circuit (249) is also configured to, when the second communication circuit (243) receives the direction estimation result, control the indication information generating device (247) to generate a direction indication. The message indicates an estimated direction of the target Bluetooth device (110) relative to the Bluetooth peripheral device (122), wherein the direction indication information includes a predetermined vibration pattern, a predetermined sound, or a predetermined voice content, but does not include any image.

6. The Bluetooth search device (120) as described in claim 5, wherein, The first control circuit (227) is also configured to estimate a relative distance between the Bluetooth peripheral device (122) 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; and to control the first communication circuit (223) to transmit the distance estimation result to the triggering device (124) through the wireless signal connection; wherein, the second control circuit (249) is also configured to control the indication information generating device (247) to generate a distance indication message when the second communication circuit (243) receives the distance estimation result, so as to express an estimated distance between the Bluetooth peripheral device (122) and the target Bluetooth device (110).

7. The Bluetooth search device (120) as described in claim 6, wherein, The first control circuit (227) is also configured to use the first communication circuit (223) 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 (122) and the target Bluetooth device (110).

8. The Bluetooth search device (120) as described in claim 5, wherein, The first control circuit (227) 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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