KR101653656B1 - Wifi-bluetooth bridge system and wifi-bluetooth connecting method using the same - Google Patents
Wifi-bluetooth bridge system and wifi-bluetooth connecting method using the same Download PDFInfo
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- KR101653656B1 KR101653656B1 KR1020150050263A KR20150050263A KR101653656B1 KR 101653656 B1 KR101653656 B1 KR 101653656B1 KR 1020150050263 A KR1020150050263 A KR 1020150050263A KR 20150050263 A KR20150050263 A KR 20150050263A KR 101653656 B1 KR101653656 B1 KR 101653656B1
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- bluetooth
- terminal
- router
- communication
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- H04W76/023—
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- H04W4/003—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
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Abstract
Description
BACKGROUND OF THE
Bluetooth is an industry standard for short-range wireless communications developed in 1994. And Wi-Fi (WIFI) are industry standards for short-range wireless networks. Both Bluetooth and Wi-Fi use ISM band (industrial, scientific and medical radio band), and Bluetooth is developed as low-power LAN, which is a replacement for wired USB. Wi-Fi has been developed as a replacement for wired Ethernet.
Bluetooth is currently starting from version 1.0 to 4.2, and has been evolving to AFH (Adoptive Frequency Hopping) to effectively avoid wireless collisions with WiFi, and is considering hardware changes for faster data transmission. If the hardware wireless communication method evolves into the UWB (Ultra Wide Band) form, it will become a short - distance communication medium of data transmission faster than the existing Wi - Fi.
Bluetooth has the advantage of low-power short-range, and requires an initial connection attempt in the form of pairing. That is, even though various Bluetooth devices exist, the connection is made through a connection attempt of a form of pairing with one device at a time. This feature is mainly used for connecting peripheral devices. Currently, it is widely used in peripherals such as a speaker, an earphone, a hands-free terminal for a car, a mouse and a keyboard of a PC, and recently it has been used in a wearable device such as a smart watch.
Wi-Fi is evolving to continue to accelerate speeds, with 802.11n, 802.11ac, and 802.11ad protocols now being built, with speeds up to 150 Mbps for 802.11n, up to 866.7 Mbps for 802.11ac, In the case of ad, it is evolving to support up to 7Gbps.
Wi-Fi is becoming very popular for providing wireless Internet in public places, or for wireless telephones or wireless Internet in the home. It is reasonable to assume that you have more than one wireless router per household. Wi-Fi has a router called an Access Point (AP), which allows multiple terminals to access the router at the same time.
In recent years, there has been a growing demand for Bluetooth capable of simultaneously connecting with a plurality of terminals. However, as long as there is a concept of one-to-one pairing, it is inevitable that there is a limitation in operation at the time of simultaneous connection.
Disclosure of Invention Technical Problem [8] The present invention provides a Wi-Fi-Bluetooth bridge system capable of connecting a plurality of terminals and a Bluetooth device using a software-based bridge module, and a Wi- The present invention has been made in view of the above problems.
A method for connecting a Wi-Fi-Bluetooth connection according to a preferred embodiment of the present invention includes connecting at least one terminal having a Wi-Fi communication function, a Wi-Fi router and a Bluetooth device supporting Bluetooth communication, At least one terminal activating a virtual Bluetooth application installed in the at least one terminal; (b) the at least one terminal receiving the profile of the Bluetooth device from the Wi-Fi router by Wi-Fi communication; And (c) the at least one terminal transmitting data to the Bluetooth device via the Wi-Fi router. The virtual Bluetooth application is an application that enables virtual Bluetooth use.
In addition, in the step (c), it is preferable that the at least one terminal transmits data using a predetermined communication port. In addition, in the step (c), the Wi-Fi router receives data by Wi-Fi communication from the at least one terminal, converts the data into Bluetooth standard, and transmits data to the Bluetooth device by Bluetooth communication .
Preferably, the Wi-Fi connection method of the present invention further comprises: before the step (b), the at least one terminal and the Wi-Fi router are connected by Wi-Fi communication; And a step in which the Wi-Fi router and the Bluetooth device are connected by Bluetooth communication.
Also, in the step of connecting by the Bluetooth communication, the Wi-Fi router operates as a Bluetooth master, and the Bluetooth device operates as a Bluetooth slave. In addition, the WiFi-Bluetooth connection method of the present invention is characterized in that the Bluetooth device transmits its own profile to the Wi-Fi router after the step of connecting through the Bluetooth communication.
The WiFi-Bluetooth connection method of the present invention is characterized in that (d) the at least one terminal is waiting for the Bluetooth device to transmit data through the Wi-Fi router. In the step (d), the at least one terminal may wait for the Bluetooth device to transmit data using a predetermined communication port.
In addition, the Wi-Fi-Bluetooth connection method of the present invention may further include: (e) after the step (d), the Bluetooth device transmits data to the at least one terminal through the Wi-Fi router, In step e), the Wi-Fi router receives data from the Bluetooth device via Bluetooth communication, converts the data into a Wi-Fi standard, and transmits data to the at least one terminal by Wi-Fi communication.
In addition, when the at least one terminal is a plurality of terminals, a control right for the Bluetooth device of each terminal can be set using a virtual Bluetooth application installed in each terminal. In addition, a terminal having a Bluetooth communication function among the at least one terminal can be used as the Wi-Fi router.
According to the WiFi-Bluetooth bridge system of the present invention and the WiFi-Bluetooth connection method using the system, a plurality of terminals and a Bluetooth device can be connected using a software bridge module.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a Wi-Fi-Bluetooth bridge system according to a first embodiment of the present invention; FIG.
FIG. 2 is a block diagram of a Wi-Fi-Bluetooth bridge system according to a second embodiment of the present invention; FIG.
3 is a flowchart of a Wi-Fi-Bluetooth connection method according to a preferred embodiment of the present invention.
Figure 4 is a flow chart of the flow chart of Figure 3 rewritten with respect to the operation of at least one terminal;
FIG. 5 is a flow chart rewritten with respect to the operation of the Wi-Fi router in the flow chart of FIG. 3;
FIG. 6 illustrates a simplified operation scenario in which a plurality of PC inputs can be controlled through a single Bluetooth keyboard and a mouse; FIG.
Hereinafter, a Wi-Fi bridge system according to embodiments of the present invention and a Wi-Fi connection method using the system will be described in detail with reference to the accompanying drawings.
It should be understood that the following embodiments of the present invention are only for embodying the present invention and do not limit or limit the scope of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
The present invention provides a software bridge module for WIFI and Bluetooth that enables data of a Wi-Fi to be transferred to Bluetooth, and a virtual Bluetooth connection is realized by Wi-Fi. .
For example, when considering a hands-free terminal mainly equipped with an automobile, the portable smart device is paired with a hands-free terminal mounted on a car. In addition, if the user desires to listen to music, the user can play the music application of his / her smart device and listen to the music on the car. If a call comes in while listening to music, the music is automatically stopped and the phone is switched to the call reception mode, and a call can be made to the soup phone through the hands-free terminal. In order to connect a smart device of another passenger to a hands-free device at the same time, it is necessary to cut off the pairing of the smart device of the user who is currently paired and to pair the smart device to be newly connected.
However, according to the present invention, if one smart device is connected to the handsfree terminal through Bluetooth pairing, the connected smart device can access the other smart devices by using its own Wi-Fi AP (Access Point) If it is possible, the music and the telephone of other smart devices connected to the WiFi may be able to initially transmit data through the smart device connected to the hands-free terminal. According to the present invention, since the present smart device can use Bluetooth and Wi-Fi at the same time without additional configuration, the above functions can be implemented by a software method.
In recent years, many PCs are often operated simultaneously. In many places, such as a developer or a control center, many PCs are driven simultaneously to monitor various types of data. One of the most uncomfortable of this is the need for input tools such as keyboard and mouse for each PC. This results in inconvenience in terms of space and efficiency. In this case, according to the present invention, it is possible to solve this problem by using the Bluetooth wireless keyboard and mouse and the Wi-Fi AP function and the router equipped with the Bluetooth.
According to the present invention, if all the PCs are connected to the Wi-Fi router with the Wi-Fi AP function, only the keyboard and the mouse are connected to the Bluetooth installed in the AP-function Wi-Fi router, and the rest is transmitted through the Wi- And the mouse signal. To do this, a Wi-Fi AP or router with a Bluetooth function is required. This Wi-Fi AP and router needs a bridge module software that converts TCP / IP data of a specific port into Bluetooth data. You'll also need a software driver that converts the incoming signal to a specific port on your PC to a mouse and keyboard input.
Bluetooth is defined as a hierarchical protocol structure such as a Core Protocol, a Cable Replacement Protocol, a Telephony Control Protocol, and an Adopted Protocol. The required protocol stacks are Link Management Protocol (LMP), Logical Link Control and Adaptation Protocol (L2CAP), and Service Discovery Protocol (SDP).
The Bluetooth profile defines the type, structure, and usage of the protocol used for each specific application based on the core protocol stack. Ultimately, a complete understanding of these core protocol stacks and profiles is required and implementation of bridge drivers with WiFi and Ethernet protocols based on them is required.
According to the present invention, first, a virtual Bluetooth application (virtual BT application) is required to allow a mobile device such as a smart device to perform a virtual Bluetooth operation. This allows you to make a call when you connect an existing Bluetooth device, or to automatically send a speaker to Bluetooth via Bluetooth when playing music. This virtual Bluetooth application is not directly connected, but when connected to WiFi, it obtains the information of the connected Bluetooth and makes necessary operation to operate using WiFi connection as if it is connected to Bluetooth.
According to the present invention, secondly, in a device in which a direct Bluetooth connection is made, a Wi-Fi-Bluetooth bridge application for connecting Wi-Fi and Bluetooth is required. It matches the incoming data to the promised port among the incoming data through the Wi-Fi to the information of Bluetooth and operates to actually communicate with the Bluetooth device using the required Bluetooth protocol stack.
The above two operations can be performed by mixing all the operations of several Smart devices at the end and transmitting them to the Bluetooth device.
The characteristic operation of the present invention as described above will be described below again with respect to each configuration.
1 is a configuration diagram of a Wi-Fi bridge system according to a first embodiment of the present invention.
1, the WiFi-Bluetooth bridge system according to the first preferred embodiment of the present invention includes at least one terminal 10 having a Wi-Fi communication function, a Wi-
The at least one
According to the present invention, at least one terminal 10 should operate as if it is directly connected to a
In addition, in the present invention, the Wi-
FIG. 2 is a block diagram of a Wi-Fi-Bluetooth bridge system according to a second embodiment of the present invention.
The difference between FIG. 1 and FIG. 2 is that, in FIG. 2, a terminal having a Bluetooth communication function among at least one of the
At least one
A virtual Bluetooth application is an application that enables virtual Bluetooth. When a virtual Bluetooth application is activated, it obtains information about a Bluetooth profile that is actually connected to the Wi-Fi bridge via a connected Wi-Fi connection. Based on the Bluetooth profile, it is possible to know which
In a virtual Bluetooth application, the main operation is to transmit data to be transmitted through Bluetooth using the information of the Bluetooth profile through a Wi-Fi using a specific port.
3 is a flowchart illustrating a Wi-Fi connection method according to an embodiment of the present invention.
FIG. 4 is a flow chart of rewriting the flowchart of FIG. 3 with respect to operations of at least one
3 to 5, the Wi-Fi-Bluetooth connection method of the present invention includes at least one terminal 10 having a Wi-Fi communication function, a Wi-
The WiFi-Bluetooth connection method of the present invention comprises the steps of starting a Wi-Fi client (S110), searching for an SSID (S120), connecting to a Wi-Fi router (20) A step S140 of driving a virtual Bluetooth application installed in at least one
In step S170, at least one terminal 10 transmits data using a predetermined communication port using a virtual Bluetooth application. Also, in step S180, it is preferable that at least one
In the Wi-
As can be understood from steps S285 and S290, the Wi-
The WiFi-Bluetooth connection method of the present invention from the perspective of the
The overall flow of the WiFi-Bluetooth connection method of the present invention shown in FIGS. 3 to 5 is summarized as follows.
When the
A connection via a pairing with the
In this state, when the terminal 10 in which the virtual Bluetooth application is installed accesses the AP providing the Wi-Fi bridge function and operates the virtual Bluetooth application, the virtual Bluetooth application requests the information of the Bluetooth to the AP, The virtual Bluetooth application knows what kind of Bluetooth is connected and automatically transmits the virtual Bluetooth application to the AP using a specific port when the operation to transmit to the
FIG. 6 is a schematic diagram illustrating an operation scenario in which a plurality of PC inputs can be controlled through one Bluetooth keyboard and a mouse.
That is, in FIG. 6, a keyboard and a mouse are used as the
The Bluetooth keyboard and mouse are connected to a WiFi router (20) equipped with a WiFi-Bluetooth bridge. The PC with the virtual Bluetooth application and the virtual mouse and keyboard driver is also connected to the Wi-Fi router (20).
Each PC can set up a sequential ID number in a virtual Bluetooth application configuration and determine which PC has control of keyboard and mouse input based on this.
For example, when the first connection is made, the input control of the mouse cursor is given to the first PC, and when it goes out of the monitor screen coordinate, the control authority is passed to the PC set as the second ID. Control privileges on keyboard input can be dependent on mouse control privileges. In this way, according to the present invention, it is possible to provide a method of controlling a plurality of PCs with one Bluetooth input device. That is, according to the present invention, when there are a plurality of at least one
As described above, according to the WiFi-Bluetooth bridge system of the present invention and the WiFi-Bluetooth connection method using the system, it is possible to connect a plurality of
10: Terminal
20: WiFi Router
30: Bluetooth device
Claims (11)
(a) operating the virtual Bluetooth application in which the at least one terminal is installed in the at least one terminal;
(b) the at least one terminal receiving the profile of the Bluetooth device from the Wi-Fi router by Wi-Fi communication; And
(c) the at least one terminal transmitting data to the Bluetooth device via the Wi-Fi router,
Wherein the virtual Bluetooth application causes the at least one terminal to transmit data to the Bluetooth device via the Wi-Fi router using a specific port according to Bluetooth profile information,
In the step (c), the Wi-Fi router receives data by Wi-Fi communication from the at least one terminal, converts the data into Bluetooth standard, transmits data to the Bluetooth device by Bluetooth communication,
The WiFi-Bluetooth connection method may further include: before the step (b), connecting the at least one terminal and the Wi-Fi router via Wi-Fi communication; And connecting the Wi-Fi router and the Bluetooth device by Bluetooth communication,
Wherein the Wi-Fi router operates as a Bluetooth master, the Bluetooth device operates as a Bluetooth slave, and the Wi-Fi router and the Bluetooth device are paired,
Wherein the WiFi-Bluetooth connection method further comprises: after the Bluetooth device is connected by the Bluetooth communication, transmitting the profile of the Bluetooth device to the Wi-Fi router,
When the at least one terminal has a plurality of terminals, a control right for the Bluetooth device of each terminal can be set using a virtual Bluetooth application installed in each terminal,
The Wi-Fi router includes a Wi-Fi bridge application that operates to communicate with a Bluetooth device by using a required Bluetooth protocol stack by matching data received from an expected port among data received through Wi-Fi communication with Bluetooth information WiFi-Bluetooth connection method characterized by being installed.
The Wi-Fi-
(d) waiting for the at least one terminal to transmit data via the Wi-Fi router to the Wi-Fi router.
The step (d)
Wherein the at least one terminal waits for the Bluetooth device to transmit data using a predetermined communication port.
The Wi-Fi-Bluetooth connection method may further include, after the step (d)
(e) the Bluetooth device transmitting data to the at least one terminal through the Wi-Fi router,
In the step (e), the Wi-
Receiving data from the Bluetooth device by Bluetooth communication, converting the data into a Wi-Fi standard, and transmitting the data to the at least one terminal by Wi-Fi communication.
Wherein the terminal having the Bluetooth communication function among the at least one terminal can use the Wi-Fi router as the Wi-Fi router.
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Cited By (2)
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US11074808B2 (en) | 2018-10-17 | 2021-07-27 | Samsung Electronics Co., Ltd. | Remote control apparatus and the control method thereof |
CN115022828A (en) * | 2022-05-30 | 2022-09-06 | Oppo广东移动通信有限公司 | Communication method, communication device, and computer-readable medium |
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KR101095412B1 (en) * | 2010-08-31 | 2011-12-16 | 주식회사 비트컴퓨터 | Bluetooth repeating apparatus, system and method for supporting data communication between bluetooth devices supporting different profile |
KR20120107214A (en) * | 2011-03-21 | 2012-10-02 | 주식회사 디지엔스 | Digital device control system capable of infrared signal addition using smart phone and home server |
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Patent Citations (2)
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KR101095412B1 (en) * | 2010-08-31 | 2011-12-16 | 주식회사 비트컴퓨터 | Bluetooth repeating apparatus, system and method for supporting data communication between bluetooth devices supporting different profile |
KR20120107214A (en) * | 2011-03-21 | 2012-10-02 | 주식회사 디지엔스 | Digital device control system capable of infrared signal addition using smart phone and home server |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US11074808B2 (en) | 2018-10-17 | 2021-07-27 | Samsung Electronics Co., Ltd. | Remote control apparatus and the control method thereof |
US11436918B2 (en) | 2018-10-17 | 2022-09-06 | Samsung Electronics Co., Ltd. | Remote control apparatus and control method thereof |
CN115022828A (en) * | 2022-05-30 | 2022-09-06 | Oppo广东移动通信有限公司 | Communication method, communication device, and computer-readable medium |
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