CN113791693A - A multi-cooperative bluetooth input system - Google Patents

Abstract

Translated fromChinese

本发明公开一种多协同蓝牙输入系统，包括主输入设备和若干个从输入设备，主输入设备包括具有主从一体和多连接蓝牙堆栈功能的第一蓝牙SOC模块、矩阵输入模块和第一天线模块，第一蓝牙SOC模块的RF输出脚连接天线模块；从输入设备包括第二蓝牙SOC模块、输入模块和第二天线模块，第二蓝牙SOC模块通过GPIO口或AD转换口与输入模块连接，第二蓝牙SOC模块通过RF输出脚与第二天线模块连接。本发明的多协同蓝牙输入系统能够同时连接多个从输入设备，可以大量减少主机物理接口的依赖，丰富输入功能；采用蓝牙SOC，外围器件少，电路结构简单，造价较低；本发明的多协同蓝牙输入系统可在工控领域、大型控制面板、群组输入和电竞等领域有效提高输入效率。

The invention discloses a multi-cooperative bluetooth input system, comprising a master input device and several slave input devices, the master input device includes a first bluetooth SOC module, a matrix input module and a first antenna with functions of master-slave integration and multi-connection bluetooth stacking module, the RF output pin of the first bluetooth SOC module is connected to the antenna module; the slave input device includes a second bluetooth SOC module, an input module and a second antenna module, and the second bluetooth SOC module is connected to the input module through a GPIO port or an AD conversion port, The second Bluetooth SOC module is connected to the second antenna module through the RF output pin. The multi-cooperative bluetooth input system of the present invention can connect multiple slave input devices at the same time, which can greatly reduce the dependence on the physical interface of the host and enrich the input functions; the use of bluetooth SOC has few peripheral devices, simple circuit structure and low cost; The collaborative Bluetooth input system can effectively improve input efficiency in the fields of industrial control, large control panels, group input, and gaming.

Description

Multi-cooperation Bluetooth input system

Technical Field

The invention relates to the technical field of electronics, in particular to a multi-cooperation Bluetooth input system.

Background

The existing keyboard only has character, symbol and number input functions generally, and the Bluetooth wireless keyboard only has the function of replacing wired keyboard into wireless keyboard, has single function and does not have potential application of Bluetooth. In some specific application occasions such as a group game scene, a multi-player game slave scene, a multi-device cooperative industrial control scene, a multimedia cooperative control scene, a comprehensive input scene containing symbol input and analog quantity and the like, the conventional keyboard has limited functions, low input efficiency and poor precision. When the host computer needs various complex input devices, the host computer needs to be provided with multiple interfaces, and the existing keyboard cannot meet the actual requirements.

Disclosure of Invention

In view of the above technical problems, the present invention provides a multi-coordination bluetooth input system.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

A multiple collaboration bluetooth input system comprising a master input device and a plurality of slave input devices, wherein:

the main input device comprises a first Bluetooth SOC module and a first antenna module which have master-slave integration and multi-connection Bluetooth stack functions, and an RF output pin of the first Bluetooth SOC module is connected with the first antenna module;

the slave input device comprises a second Bluetooth SOC module, an input module and a second antenna module, wherein the second Bluetooth SOC module is connected with the input module through a GPIO port or an AD conversion port, and is connected with the second antenna module through an RF output pin;

the plurality of second bluetooth SOC module with first bluetooth SOC module wireless connection, first bluetooth SOC module is connected with the host computer is paird, after each second bluetooth SOC module with first bluetooth SOC module is connected, equipment descriptor and HID report of second bluetooth SOC module are established to first bluetooth SOC module developments, second bluetooth SOC module will the input data of input module passes through first bluetooth SOC module transmission to the host computer.

Furthermore, the first Bluetooth SOC module and the second Bluetooth SOC module are both composed of a Bluetooth SOC chip and a crystal oscillator, a capacitor and a resistor which are connected with the periphery of the Bluetooth SOC chip.

Further, the input module comprises one or more of a keyboard module, a numeric keypad module, a special symbol keyboard module, a gamepad module, a mouse module, a control panel module, an instrument panel module, a stylus module, a digital microphone module, a digital sensor module and a virtual reality interaction module.

Further, the main input device further comprises a matrix keyboard module, and the first bluetooth SOC module is connected with the matrix keyboard module through a GPIO port.

Further, a main control firmware is preset in each of the first bluetooth SOC module and the second bluetooth SOC module, the main control firmware is an executable binary file with master-slave integration and multi-connection functions, after the first bluetooth SOC module is connected with the host, the main control firmware of the first bluetooth SOC module sends the HID report to the host and searches for the second bluetooth SOC module to be connected in each preset period, after the first bluetooth SOC module and the second bluetooth SOC module to be connected are connected in a pairing manner, the second bluetooth SOC module sends the input data of the input module to the first bluetooth SOC module in the preset period, and after the first bluetooth SOC module receives the input data, the HID report is sent to the host.

Further, when the first bluetooth SOC module and the second bluetooth SOC module are connected in a pairing manner, the main control firmware of the second bluetooth SOC module is in a SLAVE mode, and the main control firmware of the first bluetooth SOC module is in a MASTER mode.

Further, the first antenna module and the second antenna module are both PCB antennas with 50 ohm impedance.

The technical scheme of the disclosure has the following beneficial effects:

the multi-cooperation Bluetooth input system can be simultaneously connected with a plurality of slave input devices, dependence on a host physical interface can be greatly reduced, and input functions are enriched; by adopting the Bluetooth SOC, the peripheral devices are few, the circuit structure is simple, and the manufacturing cost is low; the multi-cooperation Bluetooth input system effectively improves the input efficiency in the fields of industrial control, large-scale control panels, group input, electronic contests and the like, and plays a great role.

Drawings

Fig. 1 is a block diagram of a multi-cooperative bluetooth input system in an embodiment of the present disclosure;

FIG. 2 is a block diagram of an embodiment of the present disclosure;

FIG. 3 is a block diagram of an embodiment of the present disclosure;

FIG. 4 is a flowchart illustrating operation of the main input device in an embodiment of the present disclosure;

fig. 5 is a flowchart illustrating the operation of the slave input device in the embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

Furthermore, the drawings are only schematic illustrations of the present disclosure. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

As shown in fig. 1, an embodiment of the present specification provides a multiple-cooperation bluetooth input system, including:

a multiple collaborative bluetooth input system comprising amaster input device 1 and a number ofslave input devices 2, wherein:

themain input device 1 comprises a first BluetoothSOC module 11 with master-slave integration and multi-connection Bluetooth stack functions, amatrix input module 22 and afirst antenna module 12, wherein an RF output pin of the first BluetoothSOC module 11 is connected with thefirst antenna module 12;

theslave input device 2 comprises a second BluetoothSOC module 21, aninput module 22 and asecond antenna module 23, wherein the second BluetoothSOC module 21 is connected with theinput module 22 through a GPIO port or an AD conversion port, and the second BluetoothSOC module 21 is connected with thesecond antenna module 23 through an RF output pin;

the plurality of secondbluetooth SOC modules 21 are in wireless connection with the firstbluetooth SOC module 11, the firstbluetooth SOC module 11 is in pairing connection with thehost 3, after each secondbluetooth SOC module 21 is connected with the firstbluetooth SOC module 11, the firstbluetooth SOC module 11 dynamically establishes the device descriptor and the HID report of the secondbluetooth SOC module 21, and the second bluetooth SOC module transmits the input data of theinput module 22 to thehost 3 through the firstbluetooth SOC module 11.

As shown in fig. 2, the plurality ofslave input devices 2 are all connected with themaster input device 1 through bluetooth, when the connection is completed, themaster input device 1 generates the HID descriptor of theslave input device 2, the master input device transparently transmits the input and output data of theslave input device 2 to thehost 3, and thehost 3 regards the data as the data of the master input device, so that the effect of cooperative work of theslave input device 2 and themaster input device 1 is achieved.

Thehost 3 may be a computer or a server.

In one embodiment, the firstbluetooth SOC module 11 and the secondbluetooth SOC module 21 are each composed of a bluetooth SOC chip and a crystal oscillator, a capacitor, and a resistor connected to the periphery of the bluetooth SOC chip. The peripheral devices are few, the circuit structure is simple, the cost is low, and the popularization and the use are facilitated.

In one embodiment, theinput module 22 includes one or more of a keyboard module, a numeric keypad module, a special symbol keyboard module, a joystick module, a mouse module, a control panel module, an instrument panel module, a stylus module, a digital microphone module, a digital sensor module, a virtual reality interaction module. Theinput module 22 may be an input device in various forms, and any input device that can generate input data under human-computer interaction is included in theinput module 22 of the present embodiment.

In one embodiment, as shown in fig. 3, themain input device 1 further includes amatrix keyboard module 13, and the firstbluetooth SOC module 11 is connected to thematrix keyboard module 13 through a GPIO port. In case that multi-collaborative input is not required, themain input module 1 can be used with a single input keyboard.

In an embodiment, the firstbluetooth SOC module 11 and the secondbluetooth SOC module 21 are both preset with a main control firmware, the main control firmware is an executable binary file with master-slave integration and multi-connection functions, after the firstbluetooth SOC module 11 is connected to thehost 3, the main control firmware of the firstbluetooth SOC module 11 sends the HID report to thehost 3 and searches for the secondbluetooth SOC module 21 to be connected in each preset period, after the firstbluetooth SOC module 11 and the secondbluetooth SOC module 21 to be connected are connected in a pairing manner, the second bluetooth SOC module sends the input data of theinput module 22 to the firstbluetooth SOC module 11 in the preset period, and after the firstbluetooth SOC module 11 receives the input data, the HID report is sent to thehost 3.

In an embodiment, when the firstbluetooth SOC module 11 and the secondbluetooth SOC module 21 are connected in a pairing manner, the MASTER firmware of the secondbluetooth SOC module 21 is in SLAVE mode, and the MASTER firmware of the firstbluetooth SOC module 11 is in MASTER mode. I.e. the firstbluetooth SOC module 11 is in "master" mode and the secondbluetooth SOC module 21 is in "slave" mode.

In one embodiment, thefirst antenna module 12 and thesecond antenna module 23 are both 50 ohm impedance PCB antennas.

In one embodiment, the bluetooth stack of the firstbluetooth SOC module 11 has a master-slave integrated multiple connection bluetooth stack protocol.

The operation principle is as follows: referring to fig. 4 to 5, in operation of the present invention, after themain input device 1 is started, the firstbluetooth SOC module 11 initializes the main control firmware, initializes the bluetooth stack and initializes the HID, and then the firstbluetooth SOC module 11 is successfully connected to thehost 3 and sends a report to thehost 3, meanwhile, the firstbluetooth SOC module 11 scans and identifies the secondbluetooth SOC module 21 and then connects to the secondbluetooth SOC module 21, and dynamically establishes the device descriptor and the HID report of the secondbluetooth SOC module 21, when the secondbluetooth SOC module 21 detects that theinput module 22 has input data, the NOTIFY is sent to the firstbluetooth SOC module 11, and the firstbluetooth SOC module 11 sends the received input data to thehost 3.

The multi-cooperation Bluetooth input system can be simultaneously connected with a plurality ofslave input devices 2, dependence on a physical interface of ahost 3 can be greatly reduced, and input functions are enriched; the Bluetooth SOC chip is adopted, so that the number of peripheral devices is small, the circuit structure is simple, and the manufacturing cost is low; the multi-cooperation Bluetooth input system effectively improves the input efficiency in the fields of industrial control, large-scale control panels, group input, electronic contests and the like, and plays a great role.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, according to exemplary embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (7)

Translated fromChinese

1.一种多协同蓝牙输入系统，其特征在于，包括主输入设备和若干个从输入设备，其中：1. a multi-cooperative bluetooth input system, is characterized in that, comprises main input device and several from input device, wherein:所述主输入设备包括具有主从一体和多连接蓝牙堆栈功能的第一蓝牙SOC模块和第一天线模块，所述第一蓝牙SOC模块的RF输出脚连接所述第一天线模块；The main input device includes a first Bluetooth SOC module and a first antenna module with functions of master-slave integration and multi-connection Bluetooth stack, and the RF output pin of the first Bluetooth SOC module is connected to the first antenna module;所述从输入设备包括第二蓝牙SOC模块、输入模块和第二天线模块，所述第二蓝牙SOC模块通过GPIO口或AD转换口与所述输入模块连接，所述第二蓝牙SOC模块通过RF输出脚与所述第二天线模块连接；The slave input device includes a second Bluetooth SOC module, an input module and a second antenna module, the second Bluetooth SOC module is connected to the input module through a GPIO port or an AD conversion port, and the second Bluetooth SOC module is connected to the input module through an RF port. the output pin is connected to the second antenna module;若干个所述第二蓝牙SOC模块与所述第一蓝牙SOC模块无线连接，所述第一蓝牙SOC模块与主机配对连接，在每一个所述第二蓝牙SOC模块与所述第一蓝牙SOC模块连接后，所述第一蓝牙SOC模块动态建立所述第二蓝牙SOC模块的设备描述符和HID报告，所述第二蓝牙SOC模块将所述输入模块的输入数据通过所述第一蓝牙SOC模块传输至所述主机。Several of the second Bluetooth SOC modules are wirelessly connected to the first Bluetooth SOC module, the first Bluetooth SOC module is paired and connected to the host, and each of the second Bluetooth SOC modules is connected to the first Bluetooth SOC module. After the connection, the first Bluetooth SOC module dynamically establishes the device descriptor and HID report of the second Bluetooth SOC module, and the second Bluetooth SOC module passes the input data of the input module through the first Bluetooth SOC module transmitted to the host.2.根据权利要求1所述的多协同蓝牙输入系统，其特征在于，所述第一蓝牙SOC模块和所述第二蓝牙SOC模块均由蓝牙SOC芯片和连接所述蓝牙SOC芯片外围的晶体振荡器、电容和电阻构成。2. The multi-cooperative bluetooth input system according to claim 1, wherein the first bluetooth SOC module and the second bluetooth SOC module are both oscillated by a bluetooth SOC chip and a crystal connected to the periphery of the bluetooth SOC chip capacitors, resistors and capacitors.3.根据权利要求1所述的多协同蓝牙输入系统，其特征在于，所述输入模块包括键盘模块、数字小键盘模块、特殊符号键盘模块、游戏手柄模块、鼠标模块、控制面板模块、仪表盘模块、手写笔模块、数字麦克风模块、数字传感器模块、虚拟现实交互模块中的一种或多种。3. The multi-cooperative bluetooth input system according to claim 1, wherein the input module comprises a keyboard module, a numeric keypad module, a special symbol keyboard module, a game handle module, a mouse module, a control panel module, an instrument panel One or more of modules, stylus modules, digital microphone modules, digital sensor modules, and virtual reality interaction modules.4.根据权利要求1所述的多协同蓝牙输入系统，其特征在于，所述主输入设备还包括矩阵键盘模块，所述第一蓝牙SOC模块通过GPIO口连接所述矩阵键盘模块。4 . The multi-cooperative Bluetooth input system according to claim 1 , wherein the main input device further comprises a matrix keyboard module, and the first Bluetooth SOC module is connected to the matrix keyboard module through a GPIO port. 5 .5.根据权利要求1所述的多协同蓝牙输入系统，其特征在于，所述第一蓝牙SOC模块和所述第二蓝牙SOC模块均预设有主控固件，所述主控固件为具有主从一体和多连接功能的可执行二进制文件，在所述第一蓝牙SOC模块与所述主机连接后，所述第一蓝牙SOC模块的所述主控固件在每个预设周期内发送所述HID报告至所述主机并查找待连接的所述第二蓝牙SOC模块，在所述第一蓝牙SOC模块和待连接的所述第二蓝牙SOC模块配对连接后，所述第二蓝牙SOC模块在所述预设周期内将所述输入模块的所述输入数据发送至所述第一蓝牙SOC模块，所述第一蓝牙SOC模块接收到所述输入数据后发送所述HID报告至所述主机。5. The multi-cooperative bluetooth input system according to claim 1, wherein the first bluetooth SOC module and the second bluetooth SOC module are both preset with main control firmware, and the main control firmware is a main control firmware. From the executable binary file of integrated and multi-connection functions, after the first Bluetooth SOC module is connected to the host, the master firmware of the first Bluetooth SOC module sends the HID reports to the host and searches for the second Bluetooth SOC module to be connected. After the first Bluetooth SOC module and the second Bluetooth SOC module to be connected are paired and connected, the second Bluetooth SOC module is in The input data of the input module is sent to the first Bluetooth SOC module within the preset period, and the first Bluetooth SOC module sends the HID report to the host after receiving the input data.6.根据权利要求5所述的多协同蓝牙输入系统，其特征在于，所述第一蓝牙SOC模块和所述第二蓝牙SOC模块在配对连接时，所述第二蓝牙SOC模块的所述主控固件处于SLAVE模式，所述第一蓝牙SOC模块的所述主控固件处于MASTER模式。6. The multi-cooperative Bluetooth input system according to claim 5, wherein when the first Bluetooth SOC module and the second Bluetooth SOC module are paired and connected, the master of the second Bluetooth SOC module The control firmware is in the SLAVE mode, and the main control firmware of the first Bluetooth SOC module is in the MASTER mode.7.根据权利要求1所述的多协同蓝牙输入系统，其特征在于，所述第一天线模块和所述第二天线模块均为50欧阻抗的PCB天线。7 . The multi-cooperative Bluetooth input system according to claim 1 , wherein the first antenna module and the second antenna module are both PCB antennas with an impedance of 50 ohms. 8 .

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