Method of establishing stable Piconet and system of establishment of stable Piconet based on bluetooth

A method of establishing a stable Piconet based on Bluetooth, comprising steps of:

• serving a central device as the slave and as a discoverable role, serving a first peripheral device as a master for inquiry and linking the central device according to a Bluetooth logical link control and adaptation protocol (L2CAP), establishing a Piconet with a single slave, providing a Bluetooth address of the first peripheral device to the central device after the successful connection, and recording the state of the first peripheral device actively linking the central device;
• serving the central device as the slave and as the discoverable role, serving a second peripheral device as a master for inquiry and linking the central device according to the L2CAP, establishing a Scatternet, providing a Bluetooth address of the second peripheral device to the central device after the successful connection, and recording the state of the second peripheral device actively linking the central device;
• disconnecting the first peripheral device and the second peripheral device from the central device network, reentering an inquiry range of the central device, performing automatic inquiry and identification matching in the central device, requesting the first peripheral device and the second peripheral device to be linked according to the L2CAP in an identification is matched, pulling in the first peripheral device and the second peripheral device, and establishing a stable Piconet with dual slaves;
• serving the central device as the slave and as the discoverable role, serving one or more than one of a third peripheral device, a fourth peripheral device, a fifth peripheral device, a sixth peripheral device, and a seventh peripheral device as masters for inquiry and linking the central device according to the L2CAP, and establishing the Scatternet;
• performing automatic inquiry and identification matching, requesting all of the peripheral devices to be connected if an identification is matched, pulling in all of the peripheral devices, and establishing the stable Piconet in the central device when all of the peripheral devices are disconnected from central device network and reenter the inquiry range of the central device;
• and
• backing up tables about operational types and operational results locally in the central device and all of the peripheral devices after the stable Piconet is completely established, and the central device's controlling working activities of the peripheral devices.

A system of establishing a stable Piconet based on Bluetooth, comprising:

• a processor;
• a memory connected with a processor, the memory comprising a plurality of program instructions executable by the processor,
• the system further comprises:
• a link recording module, configured to cause the processor to serve a central device as a slave and as a discoverable role, to serve at most seven peripheral devices as a master for inquiry and linking the central device according to the Bluetooth logical link control and adaptation protocol (L2CAP), to establish a Piconet or a Scatternet, providing a Bluetooth address of the peripheral devices to the central device after successful connection, and to record the state of the peripheral devices linking to the central device;
• a networking module, configured to cause the processor to disconnect all of the peripheral devices from central device network, to reenter an inquiry range of the central device, to perform automatic inquiry and identification matching in the central device, to request all of the peripheral devices to be linked according to the L2CAP if an identification is matched, to pull in all of the peripheral devices, and establishing the stable Piconet,
• wherein the link recording module comprises:
• a first recording unit, configured to cause the processor to serve the central device as the slave and as the discoverable role, to serve a first peripheral device as a master for inquiry and linking the central device according to the L2CAP, to establish a Piconet with a single slave, to provide a Bluetooth address of the first peripheral device to the central device after the successful connection, and to record the state of the first peripheral device actively linking the central device;
• a second recording unit, configured to cause the processor to serve the central device as the slave and as the discoverable role, to serve a second peripheral device as a master for inquiry and linking the central device according to the L2CAP, to establish establishing the Scatternet, to provide a Bluetooth address of the second peripheral device to the central device after the successful connection, and to record the state of the second peripheral device actively linking the central device;
• a first Piconet networking unit, configured to cause the processor to disconnect the first peripheral device and the second peripheral device from the central device network, to reenter the inquiry range of the central device, to perform automatic inquiry and identification matching in the central device, to request the first peripheral device and the second peripheral device to be linked according to the L2CAP if an identification is matched, to pull in the first peripheral device and the second peripheral device, and to establish a stable Piconet with dual slaves;
• and
• a Scatternet networking unit, configured to cause the processor to serve the central device as the slave and as the discoverable role, serving one or more than one of a third peripheral device, a fourth peripheral device, a fifth peripheral device, a sixth peripheral device, and a seventh peripheral device as masters for inquiry and linking the central device according to the L2CAP, and to establish the Scatternet.