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Bluetooth connection method and device and Bluetooth equipment

A bluetooth connection method and technology of bluetooth devices, which are applied in the field of digital information transmission, can solve the problems of data sender receiving and difficult to transmit data, and achieve the effect of avoiding interference, enhancing anti-interference, and avoiding interference.

Pending Publication Date: 2020-11-20
LUXSHARE ELECTRONICS TECH (KUNSHAN) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the Bluetooth data packet is difficult to be received by the accurate receiver during the transmission process, and the data returned by the receiver is also difficult to be accurately and completely received by the sender. In such a complex ISM frequency band, it is difficult to transmit data quickly and stably.

Method used

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  • Bluetooth connection method and device and Bluetooth equipment
  • Bluetooth connection method and device and Bluetooth equipment
  • Bluetooth connection method and device and Bluetooth equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 2 It is a flowchart of a Bluetooth connection method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the master device interconnects with the slave device through Bluetooth communication. The method can be executed by a Bluetooth connection device. The device can be implemented in the form of software and / or hardware. The device can be configured in a bluetooth device. like figure 2 As shown, the method includes:

[0039] Step S110 , sending the clock sequence and the group code, instructing the slave device to frequency hop within the channel group corresponding to the group code, and instructing the slave device to synchronize its own clock sequence according to the clock sequence.

[0040] Wherein, the group code is a code corresponding to dividing the Bluetooth channel into a first preset number of channel groups according to a preset rule, and is used to instruct the Bluetooth device to frequency h...

Embodiment 2

[0050] Image 6 It is a flow chart of another bluetooth connection method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above embodiments, such as Image 6 As shown, the method includes:

[0051] Step S210, periodically receiving Bluetooth channel information in the current environment.

[0052] Wherein, the Bluetooth channel information is used to reflect device occupancy information of the Bluetooth channel in the current environment.

[0053] Specifically, the master device periodically receives the work information of all devices in the current environment in the Bluetooth channel at preset time intervals. Since many devices in the environment work on the frequency band of Bluetooth devices, the channel frequency hopping on the frequency band is crowded. When Bluetooth devices are connected to each other, they are susceptible to frequency hopping interference from other devices. , which is conducive to evaluating the...

Embodiment 3

[0081] Figure 8 It is a flowchart of another bluetooth connection method provided by the third embodiment of the present invention. This embodiment is applicable to the situation where the slave device is interconnected with the master device through bluetooth. This method can be executed by the bluetooth connection device. The device can be implemented in the form of software and / or hardware. The device can be configured in equipment. like Figure 8 As shown, the method includes:

[0082] Step S310, receiving the clock sequence and group code of the master device.

[0083] Wherein, the group code is a code corresponding to dividing the Bluetooth channel into a first preset number of channel groups according to a preset rule, and is used to instruct the Bluetooth device to frequency hop within the corresponding channel group.

[0084] Optionally, before receiving the clock sequence and group code of the master device, it broadcasts its own channel frequency hopping inform...

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Abstract

The embodiment of the invention discloses a Bluetooth connection method and device and Bluetooth equipment. The method comprises the following steps: sending a clock sequence and a group code, instructing a slave device to carry out frequency hopping in a channel group corresponding to the group code, and instructing the slave device to synchronize the clock sequence of the slave device accordingto the clock sequence, the group code being a code corresponding to a first preset number of channel groups divided by a Bluetooth channel according to a preset rule, and being used for instructing the Bluetooth device to carry out frequency hopping in the corresponding channel group; and receiving connection response information of the slave device, and determining a Bluetooth connection state according to the connection response information, the connection response information being jointly determined based on a clock sequence matching result of the slave device and a group code matching result. According to the embodiment of the invention, a master device to establish the Bluetooth connection sends the clock sequence and the group code to the slave device to instruct the slave device toperform synchronous frequency hopping in the corresponding channel group, so that the anti-interference performance of the Bluetooth equipment is enhanced, and the interference avoidance in the Bluetooth connection process is realized.

Description

technical field [0001] The embodiment of the present invention relates to digital information transmission technology, in particular to a Bluetooth connection method, device and Bluetooth device. Background technique [0002] Bluetooth technology works in the universal 2.4GHz industrial, scientific, medical (IndustrialScientificMedical, ISM) frequency band, figure 1 is a schematic diagram of the working frequency band of the Bluetooth device in the prior art, such as figure 1 As shown, common Bluetooth devices usually work in the frequency range of 2.4GHz to 2.4835GHz, and the available frequency is as high as 83.5MHz. Usually, 79 radio frequency modulation points are set up in the ISM frequency band at intervals of 1MHz bandwidth. Bluetooth devices work on these 79 channels, hopping randomly. There are also some devices that work on 23 channels, and work in random frequency hopping within 23 channels. Bluetooth has the technical advantages of openness. Short-distance wir...

Claims

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Application Information

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IPC IPC(8): H04W4/80H04B1/7156H04B1/715
CPCH04W4/80H04B1/715H04B1/7156Y02D30/70
Inventor 宋平
Owner LUXSHARE ELECTRONICS TECH (KUNSHAN) LTD
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