CN206041992U - Bluetooth communication system - Google Patents
Bluetooth communication system Download PDFInfo
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- CN206041992U CN206041992U CN201621061656.5U CN201621061656U CN206041992U CN 206041992 U CN206041992 U CN 206041992U CN 201621061656 U CN201621061656 U CN 201621061656U CN 206041992 U CN206041992 U CN 206041992U
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- bluetooth
- module
- level
- output end
- communication system
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Abstract
The utility model discloses a bluetooth communication system, including logic switch module, control processing module, bluetooth module and bluetooth support module, control processing module has the level control output, the logic switch module has data input end, level control input, a data output end and the 2nd data output end, the level control output with the level control input is connected, data input end with control processing module's serial communication end is connected, a data output end with bluetooth module's serial communication end is connected, the 2nd data output end with the bluetooth supports the serial communication end of module to connect. Adopt the utility model discloses, can be sparingly with the serial ports resource of the controller of bluetooth equipment communication, improve the availability factor of serial ports.
Description
Technical field
The utility model is related to electronic circuit technology field, and in particular to a kind of Bluetooth communication system.
Background technology
Due to widely using for vehicle-mounted Bluetooth equipment, in order to improve the communication quality between mobile unit and blue-tooth device,
Would generally in mobile unit loading third-party module, such as bluetooth software noise reduction module, for the MCU in mobile unit
(Microcontroller Unit, micro-control unit)；When communicating with blue-tooth device, there is provided the function of audio defeat；And this is blue
The startup of tooth software noise reduction module, needs the MCU of mobile unit to pass through UART (Universal Asynchronous
Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter) port communicated with bluetooth noise reduction module, request bluetooth drop
The carrying out of module of making an uproar authenticates, and after authentication success provides audio frequency drop for the MCU of postorder mobile unit with the communication of blue-tooth device
The function of making an uproar.As the MCU of mobile unit is also to be communicated by UART ports with the communication of blue-tooth device, as shown in figure 1,
Fig. 1 is the structural representation of the one embodiment for the Bluetooth communication system that prior art is provided, and the MCU of mobile unit needs to provide
The UART ports of two-way, can so cause the UART port resources of the MCU of mobile unit excessively nervous.
Utility model content
The purpose of this utility model is to provide a kind of Bluetooth communication system, can save the control with bluetooth devices
The serial port resource of device, improves the service efficiency of serial ports.
For solving above technical problem, the utility model embodiment provides a kind of Bluetooth communication system, including logic switch
Module and respectively the control process module with least one serial communication end, bluetooth module and bluetooth support module；
The control process module has the Automatic level control output end for exporting the first level or second electrical level；
The logic switch module has data input pin, the electricity for receiving first level or the second electrical level
Flat control signal, for being connected with the data input pin when the Automatic level control input receives first level
The first data output end and for defeated with the data when the Automatic level control input receives the second electrical level
Enter the second data output end of end connection；
The Automatic level control output end is connected with the Automatic level control input, at the data input pin and the control
The serial communication end connection of reason module, first data output end is connected with the serial communication end of the bluetooth module, described
Second data output end is connected with the serial communication end of the bluetooth support module.
Further, the Bluetooth communication system also includes pull-up power supply voltage, first resistor and second resistance；
First data output end of the pull-up power supply voltage by the first resistor with the logic switch module connects
Connect；The pull-up power supply voltage is also connected with second data output end for stating logic switch module by the second resistance
Connect.
Preferably, the serial communication end is universal asynchronous receiving-transmitting transmission port.
Preferably, the Automatic level control output end is I/O ports.
Further, processor of the control process module for mobile unit.
Yet further, the bluetooth support module is for for the logical of the control process module and the bluetooth module
Letter provides the bluetooth noise reduction module of audio defeat function.
Further, first level is low level, and the second electrical level is high level；Or, described first is electric
Put down as high level, the second electrical level is low level.
Compared to prior art, a kind of beneficial effect of Bluetooth communication system of the present utility model is.
The Bluetooth communication system that the utility model is provided, by providing a logic switch module, control process module is only needed
Conventional Automatic level control output end i.e. I/O ports are provided, come data input pin and first data of control logic switch module
Input connection is still connected with the second data input pin, can carry out Time-sharing control to the serial communication end of logic switch module,
The communication of serial communication end all the way and bluetooth support module and bluetooth module two-way module is realized, so as to save logic switch mould
The serial port resource of block, and improve the service efficiency of serial ports.
Description of the drawings
Fig. 1 is the structural representation of the one embodiment for the Bluetooth communication system that prior art is provided；
Fig. 2 is the structural representation of the one embodiment for the Bluetooth communication system that the present invention is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 2 is referred to, which is the structural representation of the one embodiment for the Bluetooth communication system that the present invention is provided,
The utility model embodiment provides a kind of Bluetooth communication system, including logic switch module 10 and respectively with least
The control process module 20 at one serial communication end, bluetooth module 30 and bluetooth support module 40；
The control process module 20 has Automatic level control output end I/O for exporting the first level or second electrical level；
The logic switch module 10 has data input pin (DA, DB), for receiving first level or described the
The Automatic level control input Contol of two level, for when the Automatic level control input receives first level and institute
State the first data output end (A1, B1) that data input pin (DA, DB) connects, and for terminating in Automatic level control input
The second data output end (A2, B2) connected with the data input pin (DA, DB) when receiving the second electrical level；
Automatic level control output end I/O is connected with the Automatic level control input Contol, the data input pin
(DA, DB) is connected with the serial communication end (UART-R, UART-T) of the control process module 20, first data output end
The serial communication end (UART-R, UART-T) of (A1, B1) and the bluetooth module 30 connects, second data output end (A2,
B2) connect with the serial communication end (UART-R, UART-T) of the bluetooth support module 40.
Further, the Bluetooth communication system also includes pull-up power supply voltage VDD, first resistor (R1, R2) and second
Resistance (R3, R4)；Preferably, pull-up power supply voltage VDD is 3.3V；
The pull-up power supply voltage VDD is by the first resistor (R1, R2) and the first of the logic switch module 10
Data output end (A1, B1) connects；The pull-up power supply voltage VDD is also patrolled by the second resistance (R3, R4) and described stating
Collect the second data output end (A2, B2) connection of switch module 10.
It should be noted that by providing pull-up resistor for serial communication, the serial communication between two modules can be stablized.
Preferably, serial communication end (UART-R, the UART-T) is universal asynchronous receiving-transmitting transmission port.
Preferably, Automatic level control output end I/O is I/O ports.
Further, first level is low level, and the second electrical level is high level；Or, described first is electric
Put down as high level, the second electrical level is low level.
Below by the processor with the control process module 20 as mobile unit, the bluetooth support module 40 be for
For as a example by the communicating and provide the bluetooth noise reduction module of audio defeat function of the control process module 20 and the bluetooth module 30,
The operation principle of the Bluetooth communication system that description the utility model is provided：
The I/O ports of the processor of mobile unit send level control of the first level (low level) to logic switch module 10
Input Contol processed, logic switch module 10 control its data input pin (DA, DB) and first when first level is received
Data output end (A1, B1) connects, then the universal asynchronous receiving-transmitting transmission port of the processor of mobile unit and bluetooth noise reduction module
Universal asynchronous receiving-transmitting transmission port connection conducting, carry out Communications Authorization request, and after success is authorized, bluetooth noise reduction module
Start work, and the I/O ports of the processor of mobile unit then send second electrical level (high level) to logic switch module
10 Automatic level control input Contol, logic switch module 10 receive second electrical level it is equal when control its data input pin
(DA, DB) disconnects the connection with the first data output end (A1, B1) and controls its data input pin (DA, DB) and the second data
Output end (A2, B2) connects, then the universal asynchronous receiving-transmitting transmission end of the processor of mobile unit is general different with bluetooth module 30
The connection conducting of frequency transmitting-receiving transmission end, carries out Bluetooth communication, and the communication quality of this Bluetooth communication can be subject to bluetooth noise reduction mould
The optimization of block, enters to the universal asynchronous receiving-transmitting transmission end of the processor of mobile unit so as to pass through increase logic switch module 10
Row Time-sharing control, realizes the universal asynchronous receiving-transmitting transmission end communication from equipment different from two-way of main equipment all the way, and can save
The serial port resource of processor is saved, the service efficiency of serial ports is improved.
It should be noted that in the case where there is multiple bluetooth support modules, logic switch module may also be employed to be carried out point
When control serial communication, realize the multiplexing of universal asynchronous receiving-transmitting transmission port all the way.
Compared to prior art, the beneficial effect of the Bluetooth communication system of the utility model offer is：
The Bluetooth communication system that the utility model is provided, by providing a logic switch module, control process module is only needed
Conventional Automatic level control output end i.e. I/O ports are provided, come data input pin and first data of control logic switch module
Input connection is still connected with the second data input pin, can carry out timesharing control to the serial communication end of logic switch module 10
System, realizes serial communication end all the way and the communication of 30 two-way module of bluetooth support module 40 and bluetooth module, patrols so as to save
The serial port resource of switch module 10 is collected, and improves the service efficiency of serial ports.
The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a kind of Bluetooth communication system, it is characterised in that there is including logic switch module and respectively at least one serial communication
The control process module at end, bluetooth module and bluetooth support module；
The control process module has the Automatic level control output end for exporting the first level or second electrical level；
The logic switch module has data input pin, the level control for receiving first level or the second electrical level
Input processed, for be connected with the data input pin when the Automatic level control input receives first level
One data output end and for when the Automatic level control input receives the second electrical level with the data input pin
Second data output end of connection；
The Automatic level control output end is connected with the Automatic level control input, the data input pin and the control process mould
The serial communication end connection of block, first data output end are connected with the serial communication end of the bluetooth module, and described second
Data output end is connected with the serial communication end of the bluetooth support module.
2. Bluetooth communication system as claimed in claim 1, it is characterised in that the Bluetooth communication system also includes pull-up power supply
Voltage, first resistor and second resistance；
The pull-up power supply voltage is connected with the first data output end of the logic switch module by the first resistor；Institute
State pull-up power supply voltage to be also connected with second data output end for stating logic switch module by the second resistance.
3. Bluetooth communication system as claimed in claim 1, it is characterised in that the serial communication end is that universal asynchronous receiving-transmitting is passed
Defeated port.
4. Bluetooth communication system as claimed in claim 1, it is characterised in that the Automatic level control output end is I/O ports.
5. Bluetooth communication system as claimed in claim 1, it is characterised in that place of the control process module for mobile unit
Reason device.
6. Bluetooth communication system as claimed in claim 1, it is characterised in that the bluetooth support module is for for the control
Processing module processed provides the bluetooth noise reduction module of audio defeat function with communicating for the bluetooth module.
7. Bluetooth communication system as claimed in claim 1, it is characterised in that
First level is low level, and the second electrical level is high level；
Or, first level is high level, and the second electrical level is low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061656.5U CN206041992U (en) | 2016-09-18 | 2016-09-18 | Bluetooth communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061656.5U CN206041992U (en) | 2016-09-18 | 2016-09-18 | Bluetooth communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206041992U true CN206041992U (en) | 2017-03-22 |
Family
ID=58295680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621061656.5U Active CN206041992U (en) | 2016-09-18 | 2016-09-18 | Bluetooth communication system |
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| Country | Link |
|---|---|
| CN (1) | CN206041992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197090A (en) * | 2017-05-18 | 2017-09-22 | 维沃移动通信有限公司 | The method of reseptance and mobile terminal of a kind of voice signal |
-
2016
- 2016-09-18 CN CN201621061656.5U patent/CN206041992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197090A (en) * | 2017-05-18 | 2017-09-22 | 维沃移动通信有限公司 | The method of reseptance and mobile terminal of a kind of voice signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181203 Address after: Room 802, Building 6 (1) of Yunpu Fourth Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou six ring Mdt InfoTech Ltd Address before: 510530 No. 6, Yun Po four road, Whampoa District, Guangzhou, Guangdong. Patentee before: Guangzhou CVT Electronics Technology Co., Ltd. |