CN106303641A - Bluetooth pairing methods and bluetooth equipment - Google Patents

Abstract

The invention discloses a bluetooth pairing method. The bluetooth pairing method includes the following steps: a second bluetooth device receives infrared code information sent by a first bluetooth device after receiving a trigger instruction; After the infrared code information, detect the Bluetooth broadcast information sent by the first Bluetooth device when sending the infrared code information; when the second Bluetooth device detects the Bluetooth broadcast information, it will communicate with the first Bluetooth device pair with a Bluetooth device. The invention also discloses a bluetooth device. The technical scheme of the invention can effectively avoid the false pairing between the bluetooth devices.

Description

Bluetooth pairing method and Bluetooth device

technical field

The invention relates to the technical field of bluetooth, in particular to a bluetooth pairing method and a bluetooth device.

Background technique

At present, the Bluetooth function is more and more widely used in various fields, for example, the Bluetooth function is used for the connection between the TV host and the remote control. When using the Bluetooth function for the first time, pairing needs to be established between two Bluetooth devices. In the prior art, the technical solution adopted for the pairing between two Bluetooth devices is: use the first Bluetooth device to pair with the second Bluetooth device in the Bluetooth pairing mode.

The disadvantage of the above technical solution is that, when there are multiple Bluetooth devices that are in the pairing mode at the same time, it is easy to form a wrong pairing between the first Bluetooth device and other Bluetooth devices.

Contents of the invention

The main purpose of the present invention is to provide a bluetooth pairing method, aiming at avoiding the disadvantages of false pairing between bluetooth devices.

In order to achieve the above object, the Bluetooth pairing method provided by the present invention includes the following steps:

The second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction;

After receiving the infrared code information, the second bluetooth device detects the bluetooth broadcast information sent by the first bluetooth device while sending the infrared code information;

The second Bluetooth device performs pairing with the first Bluetooth device when detecting the Bluetooth broadcast information.

Preferably, before the second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction, it also includes the following steps:

After the second bluetooth device receives the start-up instruction and starts up successfully, it starts the automatic code matching service, and detects the bluetooth status and the bluetooth protocol status.

Preferably, after the second bluetooth device receives the infrared code information, after detecting the bluetooth broadcast information sent by the first bluetooth device when sending the infrared code information, it also includes the following steps:

The second bluetooth device triggers a UI prompt and starts a second timer to start timing.

Preferably, when the second Bluetooth device detects the Bluetooth broadcast information, before pairing with the first Bluetooth device, it further includes:

The second bluetooth device judges whether to detect the bluetooth broadcast information;

If not, the second bluetooth device reads the time value of the second timer, and determines whether the time value of the second timer is greater than a preset time;

If so, the second Bluetooth device resets the second timer and suspends the automatic code pairing service;

If not, continue to execute the step of the second bluetooth device judging whether to detect the bluetooth broadcast information.

Preferably, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes:

Before pairing with the first Bluetooth device, the second Bluetooth device determines whether there are Bluetooth pairing records with other first Bluetooth devices;

If yes, clear the Bluetooth pairing record.

Preferably, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes:

After the second Bluetooth device detects the Bluetooth broadcast information, it determines whether the signal strength of the detected Bluetooth broadcast information exceeds a preset signal strength;

When the detected signal strength of the Bluetooth broadcast information exceeds a preset signal strength, the second Bluetooth device executes the step of pairing with the first Bluetooth device.

Preferably, after the second bluetooth device detects the bluetooth broadcast information, after pairing with the first bluetooth device, it further includes the following steps:

The second Bluetooth device determines whether the pairing with the first Bluetooth device is successful;

When the pairing between the second Bluetooth device and the first Bluetooth device is successful, the second Bluetooth device sends pairing success information to the first Bluetooth device.

Preferably, after the first Bluetooth device sends the infrared code information and the Bluetooth broadcast information, it further includes:

The first Bluetooth device starts a first timer to start timing;

The first Bluetooth device determines whether the pairing success message is received;

If yes, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information.

Preferably, after the first Bluetooth device determines whether the pairing success information is received, it further includes:

If not, the first bluetooth device reads the time value of the first timer, and determines whether the time value of the first timer is greater than a preset time;

If so, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information;

If not, continue to execute the step of the first bluetooth device judging whether the pairing success information is received.

In addition, in order to achieve the above object, the present invention also provides a bluetooth device, including:

A receiving module, configured to receive the infrared code information sent by the first bluetooth device after receiving the trigger instruction;

The detection module is used to detect the Bluetooth broadcast information sent by the first Bluetooth device when sending the infrared code information after receiving the infrared code information;

The pairing module is configured to perform pairing with the first Bluetooth device when the Bluetooth broadcast information is detected.

In the technical solution of the present invention, after receiving the trigger instruction, the first bluetooth device sends the bluetooth broadcast information while sending the infrared code information to the second bluetooth device, and the second bluetooth device receives the infrared code start to detect the bluetooth broadcast information after receiving the information, and when multiple second bluetooth devices exist at the same time, only the second bluetooth device that receives the infrared code information starts to detect the bluetooth broadcast information for pairing, Mis-pairing between Bluetooth devices can be effectively avoided.

Description of drawings

Fig. 1 is a schematic flow chart of the first embodiment of the Bluetooth pairing method of the present invention;

2 is a schematic flow diagram of a second embodiment of the Bluetooth pairing method of the present invention;

3 is a schematic flow chart of a third embodiment of the Bluetooth pairing method of the present invention;

4 is a schematic flowchart of a fourth embodiment of the Bluetooth pairing method of the present invention;

FIG. 5 is a schematic flowchart of a seventh embodiment of the Bluetooth pairing method of the present invention;

FIG. 6 is a schematic diagram of functional modules of the first embodiment of the Bluetooth device of the present invention.

Explanation of reference numbers:

label name label name 11 receiving module 13 detection module 15 pairing module

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The present invention provides a Bluetooth pairing method. Referring to FIG. 1, in the first embodiment, the Bluetooth pairing method includes the following steps:

Step S200, the second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction;

Specifically, the first Bluetooth device and the second Bluetooth device refer to two Bluetooth devices that need to establish a Bluetooth connection. In this embodiment, the first Bluetooth device is a BLE (Bluetooth Low Energy) remote controller, and the second Bluetooth device is a TV host.

The trigger instruction can be sent by pressing a combination button, and after receiving the trigger instruction, the infrared code information and the Bluetooth broadcast information are sent simultaneously. For example, the user can point the BLE remote controller at the infrared receiving position of the second Bluetooth device, and then press the combined button. Since infrared information transmission and infrared information reception can only be realized within the effective range, when there are multiple TVs When the TV hosts exist at the same time, other TV hosts will not receive the infrared code information and trigger the scanning of the Bluetooth broadcast information. Therefore, it is possible to avoid wrong pairing between the BLE remote controller and other TV hosts.

In order to optimize the code pairing method between the first Bluetooth device and the second Bluetooth device, a custom field is added to the Bluetooth broadcast information sent by the first Bluetooth device, and this field is broadcast through the LE Advertising Report Event.

The self-defining field is an extended definition for Manufacturer Specific Data in EIR. The basic data content of the self-defining field is shown in the following table, including: data length, data type, data content and several reserved bits. The first The second Bluetooth device can detect the first Bluetooth device by scanning the Bluetooth broadcast information.

Basic data content table for custom fields

Step S210, after receiving the infrared code information, the second bluetooth device detects the bluetooth broadcast information sent by the first bluetooth device while sending the infrared code information;

Specifically, after the second Bluetooth device detects the infrared code information, it starts an automatic scanning service to detect the Bluetooth broadcast information within the scanning range.

Step S230, when the second bluetooth device detects the bluetooth broadcast information, perform pairing with the first bluetooth device.

Specifically, when the second Bluetooth device detects the Bluetooth broadcast information, it further parses the content of the custom field of the Bluetooth broadcast information to determine whether the Bluetooth broadcast information is legal. The first Bluetooth device is paired to improve the pairing accuracy of the second Bluetooth device with the first Bluetooth device.

In the technical solution of the present invention, after receiving the trigger instruction, the first bluetooth device sends the bluetooth broadcast information while sending the infrared code information to the second bluetooth device, and the second bluetooth device receives the infrared code start to detect the bluetooth broadcast information after receiving the information, and when multiple second bluetooth devices exist at the same time, only the second bluetooth device that receives the infrared code information starts to detect the bluetooth broadcast information for pairing, Mis-pairing between Bluetooth devices can be effectively avoided.

Further, if the second bluetooth device does not detect the bluetooth broadcast information, continue to detect the bluetooth broadcast information sent by the first bluetooth device while sending the infrared code information step.

Referring to Fig. 2 again, preferably, in the second embodiment, before the second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction, it also includes the following steps:

Step S209, after the second bluetooth device receives the start-up command and starts up successfully, starts the automatic code pairing service, and detects the bluetooth status and the bluetooth protocol status.

Specifically, after the second Bluetooth device receives the power-on command and starts it, it automatically starts the automatic code pairing service, and after the automatic code pairing service is started, the second Bluetooth device detects the Bluetooth state and the Bluetooth protocol state, therefore, before the first Bluetooth device turns on the pairing mode to make a pairing request, the second Bluetooth device has already prepared for Bluetooth pairing. After receiving the infrared code information, the second Bluetooth device The device only needs to directly scan the Bluetooth broadcast information. Compared with the technical solution of starting the automatic code pairing service after receiving the pairing request, step S209 advances all code pairing preparations before receiving the pairing request. Complete, it can respond to the pairing request more quickly, and improve the code pairing efficiency after receiving the pairing request.

Please refer to FIG. 3 again. Preferably, in the third embodiment, after receiving the infrared code information, the second bluetooth device detects that the first bluetooth device sends the infrared code information at the same time. After the bluetooth broadcast information, the following steps are also included:

Step S211, the second bluetooth device triggers a UI prompt and starts a second timer to start timing.

Specifically, starting the second timer by the second Bluetooth device can effectively control the pairing time, thereby achieving the effect of saving energy.

Further, in this embodiment, the start detection flag is set in the second Bluetooth device, and when the detection of the Bluetooth broadcast information is started, the start detection flag is set to 1, and the detection of the Bluetooth broadcast information is suspended At this time, the detection start flag is set to 0, so as to identify whether to start detecting the Bluetooth broadcast information.

Please refer to FIG. 4 again. Preferably, in the fourth embodiment, when the second Bluetooth device detects the Bluetooth broadcast information, before pairing with the first Bluetooth device, it further includes:

Step S240, the second bluetooth device judges whether the bluetooth broadcast information is detected;

Step S241, if not, the second Bluetooth device reads the time value of the second timer, and determines whether the time value of the second timer is greater than a preset time;

Step S243, if yes, the second Bluetooth device resets the second timer and suspends the automatic code pairing service;

If not, continue to execute the step of the second bluetooth device judging whether to detect the bluetooth broadcast information.

In this embodiment, the preset time of the second timer is 20s, and when the second Bluetooth device does not detect the Bluetooth broadcast information within the preset time of 20s, it indicates that the first Bluetooth device No pairing request is initiated. At this time, turning off the automatic code matching service can save energy consumption generated by performing the code matching service.

Further, when the second bluetooth device receives the infrared code information again, the second bluetooth device re-executes step S211 and the steps after step S211.

Preferably, in the fifth embodiment, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes:

Step S250 (not shown in the figure), before pairing with the first Bluetooth device, the second Bluetooth device determines whether there is a Bluetooth pairing record with other first Bluetooth devices;

Step S251 (not shown), if so, clear the Bluetooth pairing record;

Step S253 (not shown in the figure), if not, pair the second Bluetooth device with the first Bluetooth device.

Specifically, the Bluetooth pairing record includes: pairing information between the second Bluetooth device and other Bluetooth devices and connection information with other Bluetooth devices, and clearing the Bluetooth pairing record is beneficial for the second Bluetooth device to initiate pairing Requesting pairing of the first Bluetooth device, reducing pairing interference.

Preferably, in the sixth embodiment, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes:

Step S260 (not shown in the figure), after the second Bluetooth device detects the Bluetooth broadcast information, determine whether the signal strength of the detected Bluetooth broadcast information exceeds a preset signal strength;

In this embodiment, the preset signal strength is 70, and judging whether the detected signal length of the Bluetooth broadcast information exceeds the preset signal strength helps to filter out the Bluetooth broadcast information sent by other Bluetooth devices, reducing The pairing interference is small, and at the same time, the successful pairing between the second Bluetooth device and the first Bluetooth device can be ensured.

When the detected signal strength of the Bluetooth broadcast information exceeds a preset signal strength, the second Bluetooth device executes the step of pairing with the first Bluetooth device.

Specifically, if the signal strength exceeds the preset signal strength, the second Bluetooth device reads the Bluetooth pairing list, and detects whether there are other paired Bluetooth devices in the Bluetooth pairing list;

If so, remove the pairing of other Bluetooth devices;

If not, the second Bluetooth device is paired with the first Bluetooth device.

Further, if the detected signal strength of the bluetooth broadcast information does not exceed the preset signal strength, the second bluetooth device sends a reminder to the user that the signal strength is low, and prompts the user to approach the second bluetooth device , so as to increase the signal strength of the Bluetooth broadcast information.

Please refer to Fig. 5, preferably, in the seventh embodiment, after the second Bluetooth device detects the Bluetooth broadcast information, after pairing with the first Bluetooth device, further includes the following steps:

Step S280, the second Bluetooth device judges whether the pairing with the first Bluetooth device is successful;

Step S281, when the pairing between the second Bluetooth device and the first Bluetooth device is successful, the second Bluetooth device sends pairing success information to the first Bluetooth device.

Further, if not, continue to execute the step of the second bluetooth device judging whether to detect the bluetooth broadcast information.

Preferably, in the eighth embodiment, after the first Bluetooth device sends the infrared code information and the Bluetooth broadcast information, it further includes:

Step S110 (not shown in the figure), the first Bluetooth device starts a first timer to start timing;

Step S130 (not shown in the figure), the first Bluetooth device determines whether the pairing success message is received;

Step S131 (not shown in the figure), if yes, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information.

After the first bluetooth device receives the pairing success information, reset the first timer, and stop sending the infrared code information and the bluetooth broadcast information at the same time to stop the current round of pairing service, which is conducive to automatically ending the pairing service , saving energy loss during the pairing process.

Preferably, in the ninth embodiment, after the first Bluetooth device determines whether the pairing success message is received, it further includes:

Step S150 (not shown in the figure), if not, the first Bluetooth device reads the time value of the first timer, and judges whether the time value of the first timer is greater than a preset time;

If so, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information;

If not, continue to execute the step of the first bluetooth device judging whether it receives pairing success information.

In this embodiment, the preset time of the first timer is set to 20s. After the preset time of the first timer is exceeded, the pairing service is automatically suspended, which is beneficial to reduce energy consumption caused by continuously initiating the pairing service.

In addition, in order to achieve the above object, the present invention also provides a bluetooth device. Referring to FIG. 6, in one embodiment, the bluetooth device provided by the present invention includes:

The receiving module 11 is used to receive the infrared code information sent by the first bluetooth device after receiving the trigger instruction;

The detection module 13 is used to detect the Bluetooth broadcast information sent by the first Bluetooth device when sending the infrared code information after receiving the infrared code information;

The pairing module 15 is configured to perform pairing with the first Bluetooth device when the Bluetooth broadcast information is detected.

In this embodiment, the first Bluetooth device is a BLE remote controller, and the Bluetooth device is a TV host, however, embodiments of the first Bluetooth device and the Bluetooth device are not limited thereto. The trigger instruction can be sent by pressing a combination button, and after receiving the trigger instruction, the infrared code information and the Bluetooth broadcast information are sent simultaneously. For example, the user can point the BLE remote control at the receiving module 11 of the TV host, and then press the combined button. Since infrared information transmission and infrared information reception can only be realized within the effective range, when there are multiple When the TV hosts exist at the same time, other TV hosts will not receive the infrared code information and trigger the detection module 13 to scan the Bluetooth broadcast information. pair.

In order to optimize the code pairing method between the first Bluetooth device and the Bluetooth device, a custom field is added to the Bluetooth broadcast information sent by the first Bluetooth device, and this field is broadcast through the LE Advertising Report Event.

The self-defining field is an extended definition for Manufacturer Specific Data in EIR. The basic data content of the self-defining field is shown in the following table, including: data length, data type, data content and several reserved bits. The Bluetooth The device can detect the first Bluetooth device by scanning the Bluetooth broadcast information.

Basic data content table for custom fields

After the detection module 13 detects the infrared code information, it starts an automatic scanning service to detect the Bluetooth broadcast information within the scanning range.

Specifically, when the detection module 13 detects the Bluetooth broadcast information, it further parses the content of the custom field of the Bluetooth broadcast information to determine whether the Bluetooth broadcast information is legal, and if legal, the pairing module 15 parties can be paired with the first Bluetooth device to improve the pairing accuracy of the Bluetooth device with the first Bluetooth device.

In the technical solution of the present invention, after the first bluetooth device receives the trigger instruction, it sends the bluetooth broadcast information while sending the infrared code information to the bluetooth device, and the bluetooth device receives the infrared code information Start to detect the Bluetooth broadcast information. When there are multiple Bluetooth devices at the same time, only the Bluetooth device that receives the infrared code information will start to detect the Bluetooth broadcast information for pairing, which can effectively avoid the Bluetooth device. mismatch between.

Further, the detection module 13 is also configured to continue to detect the Bluetooth broadcast sent by the first Bluetooth device while sending the infrared code information when the Bluetooth broadcast information is not detected. information.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. a bluetooth pairing method, is characterized in that, described bluetooth pairing method comprises the following steps: The second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction; After receiving the infrared code information, the second bluetooth device detects the bluetooth broadcast information sent by the first bluetooth device while sending the infrared code information; The second Bluetooth device performs pairing with the first Bluetooth device when detecting the Bluetooth broadcast information. 2. The bluetooth pairing method as claimed in claim 1, wherein, before the second bluetooth device receives the infrared code information sent by the first bluetooth device after receiving the trigger instruction, it also includes the following steps: After the second bluetooth device receives the start-up instruction and starts up successfully, it starts the automatic code matching service, and detects the bluetooth status and the bluetooth protocol status. 3. The bluetooth pairing method according to claim 2, characterized in that, after receiving the infrared code information, the second bluetooth device detects that the first bluetooth device sends the infrared code information at the same time After sending the Bluetooth broadcast information, the following steps are also included: The second Bluetooth device triggers a UI prompt and starts a second timer to start timing. 4. The Bluetooth pairing method according to claim 3, wherein when the second Bluetooth device detects the Bluetooth broadcast information, before pairing with the first Bluetooth device, further comprising: The second bluetooth device judges whether to detect the bluetooth broadcast information; If not, the second bluetooth device reads the time value of the second timer, and determines whether the time value of the second timer is greater than a preset time; If so, the second Bluetooth device resets the second timer and suspends the automatic code pairing service; If not, continue to execute the step of the second bluetooth device judging whether to detect the bluetooth broadcast information. 5. The Bluetooth pairing method according to any one of claims 1 to 4, wherein, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes : Before pairing with the first Bluetooth device, the second Bluetooth device determines whether there are Bluetooth pairing records with other first Bluetooth devices; If yes, clear the Bluetooth pairing record. 6. The Bluetooth pairing method according to any one of claims 1 to 4, wherein, when the second Bluetooth device detects the Bluetooth broadcast information, pairing with the first Bluetooth device includes : After the second Bluetooth device detects the Bluetooth broadcast information, it determines whether the signal strength of the detected Bluetooth broadcast information exceeds a preset signal strength; When the detected signal strength of the Bluetooth broadcast information exceeds a preset signal strength, the second Bluetooth device executes the step of pairing with the first Bluetooth device. 7. The Bluetooth pairing method according to any one of claims 1 to 4, characterized in that, when the second Bluetooth device detects the Bluetooth broadcast information, after pairing with the first Bluetooth device , further comprising the following steps: The second Bluetooth device determines whether the pairing with the first Bluetooth device is successful; When the second Bluetooth device is successfully paired with the first Bluetooth device, the second Bluetooth device sends pairing success information to the first Bluetooth device. 8. The Bluetooth pairing method according to claim 7, wherein, after the first Bluetooth device sends the infrared code information and the Bluetooth broadcast information, further comprising: The first Bluetooth device starts a first timer to start timing; The first Bluetooth device determines whether the pairing success message is received; If yes, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information. 9. The Bluetooth pairing method according to claim 8, wherein after the first Bluetooth device determines whether the pairing success message is received, further comprising: If not, the first bluetooth device reads the time value of the first timer, and judges whether the time value of the first timer is greater than a preset time; If so, the first Bluetooth device resets the first timer, and stops sending the infrared code information and the Bluetooth broadcast information; If not, continue to execute the step of the first bluetooth device judging whether the pairing success information is received. 10. A bluetooth device, characterized in that, comprising: A receiving module, configured to receive the infrared code information sent by the first bluetooth device after receiving the trigger instruction; The detection module is used to detect the Bluetooth broadcast information sent by the first Bluetooth device when sending the infrared code information after receiving the infrared code information; The pairing module is configured to perform pairing with the first Bluetooth device when the Bluetooth broadcast information is detected.