CN205945735U - A circuit board for launching and receive bluetooth signal - Google Patents
A circuit board for launching and receive bluetooth signal Download PDFInfo
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- CN205945735U CN205945735U CN201620390344.2U CN201620390344U CN205945735U CN 205945735 U CN205945735 U CN 205945735U CN 201620390344 U CN201620390344 U CN 201620390344U CN 205945735 U CN205945735 U CN 205945735U
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- radio frequency
- master chip
- bluetooth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a circuit board for launching and receive bluetooth signal, the communication module who contains the bluetooth BLE radio frequency module who is used for receive wireless signals and be used for communicating, bluetooth BLE radio frequency module and communication module electricity are connected, bluetooth BLE radio frequency module contains main chip, radio frequency processing chip and antenna, and chip electric connection is handled with the radio frequency to main chip, and chip and antenna connection are handled to the radio frequency, the radio frequency is handled the chip and is the special BLUN NULL of bluetooth, main chip is the CC2540 bluetooth low energy chip, and main chip is connected with the wave filter, and wave filter B1 adopts the 2540BM15A0002 model, the preferred adoption RS485 module of communication module. This circuit board simple structure, compatibility is strong, wireless communication is of high quality, high sensitivity, anti common mode interference can the reinforces, noise proof can the reinforce, communication distance far can be suitable for in a big way spacious occasion like the parking area etc..
Description
Technical field
The utility model belongs to field of wireless transmission, especially a kind of circuit board for launching and receiving Bluetooth signal.
Background technology
With the development of science and technology and society, people are stopped generally according to manually to control parking order on parking lot, pass
The connection of system and parking toll mode cannot meet the demand of people's Working Life, in order to more convenient, need to adopt
With wireless control technology, and Bluetooth technology eliminates the line between equipment, with wireless connect replace traditional electric wire, can connect
Multiple equipment, overcomes a difficult problem for data syn-chronization.To confirm using Bluetooth wireless transmission to dispatch the parking in parking lot, to have or not room
Deng monitoring more conform to the demand of social development.Bluetooth is mainly made up of bluetooth hardware and Bluetooth protocol, but conventional Bluetooth is deposited
Near in transmission range, manufacture and design complex structure, energy consumption is big, the shortcomings of jitter.
Content of the invention
The purpose of this utility model is to provide a kind of structure simple, simplifies design program, compatible performance is strong, channel radio
News quality is good, and the more economical practicality lower circuit board of power consumption, and this circuit board is mainly used in launching and receives Bluetooth signal.
In order to reach above-mentioned utility model purpose, the utility model employs the following technical solutions：One kind is used for launching and connects
Receive the circuit board of Bluetooth signal, this circuit board comprises the bluetooth BLE radio-frequency module for receiving wireless signal and is used for communication
Communication module, described radio-frequency module and communication module electrical connection；Radio-frequency module comprises master chip, radio frequency processing chip and antenna,
Described master chip is electrically connected with radio frequency processing chip, and described radio frequency processing chip and antenna connect；Radio frequency processing chip is bluetooth
Special BLUN integrated chip；Master chip is CC2540 low-power consumption bluetooth chip, and the 0th pin of described master chip and the 1st pin are grounded
GND, the 4th pin of master chip and the 10th pin meet voltage+3V3, and the 11st pin of master chip is with resistance R7, light emitting diode LD1 successively
It is grounded GND after connection；30th pin of master chip is grounded after being connected with resistance R5, the 29th pin of master chip, 28 pin, 27 pin, 24 pin,
21 pin are connected with power supply AVCC, and 26 pin of master chip, 25 pin are connected with the 3rd pin of wave filter B1, the 4th pin respectively；Wave filter B1
The 1st pin, the 6th pin be connected with the two ends of electric capacity C3 respectively, the node between the 1st pin of wave filter B1 and electric capacity C3 and inductance L1
One end connect, the other end of inductance L1 is connected with antenna ANT1；23rd pin of master chip and the input pin of crystal oscillator Y1, electric capacity C4
One end, the 22nd pin of master chip is sequentially connected with the output pin of crystal oscillator, electric capacity C5 one end, and the electric capacity C4 other end, electric capacity C5 are another
Pin fixing with one of crystal oscillator is held to be connected, the node ground connection GND between the electric capacity C4 other end, the electric capacity C5 other end；Master chip
40th pin is grounded GND after being connected with electric capacity C2, and wave filter B1 adopts 2540BM15A0002 model；Communication module is RS485 mould
Block, the interface of RS485 module comprises balance driver and differential receiver.
Further, master chip is CC2540F256 model.
Further, antenna is reversed F-typed PCB antenna or ceramic antenna
Further, it is provided with a terminal coupling resistance R2 between positive and negative two lines of RS485 module, R2 is 120 Ω.
Compared with prior art, beneficial effect is the utility model：The structure of the utility model circuit board is simple, compatibility
Can be strong, wireless telecommunications quality is good, high sensitivity, and anti-common mode disturbances ability is strong, and anti-noise ability is strong, and communication distance far can be suitable for relatively
Spacious occasion such as parking lot etc. on a large scale.
Brief description
Fig. 1 is the circuit diagram of RS485 communication module.
Fig. 2 is the circuit diagram of bluetooth BLE radio-frequency module.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is further described with explanation so that technical scheme is more clear
Chu Mingbai.
As shown in Figure 1-2, the circuit board for launching and receiving Bluetooth signal includes bluetooth BLE radio-frequency module and communication mould
Block, both electrical connections, bluetooth BLE radio-frequency module is used for receiving wireless signal, and communication module is used for communicating.Bluetooth BLE radio frequency mould
Block mainly comprises master chip, radio frequency processing chip and antenna, and master chip is electrically connected with radio frequency processing chip, described radio frequency processing core
Piece connects an antenna.Wherein radio frequency processing chip preferably employs bluetooth specific BLUN integrated chip, can improve monoblock circuit board
Radio-frequency match performance.And master chip adopts CC2540 low-power consumption bluetooth chip preferably, almost compatible all Blue smart set
Standby, it is possible to use the bluetooth of consumable electronic product such as mobile phone etc. is communicated in equipment, compatible performance is strong, wireless telecommunications quality
Good, spacious maximum distance can reach five or six ten meters.Antenna can adopt reversed F-typed PCB antenna, it would however also be possible to employ ceramic antenna, but excellent
Select built-in high-gain, high sensitivity, the reversed F-typed PCB antenna of low standing-wave ratio.
And communication module preferably employs RS485 module, because the interface of RS485 module comprises balance driver and difference connects
Receive device.Anti- common mode disturbances ability is strong, anti-noise ability is strong, and its maximum communication distance is 1000m.
RS485 module head and the tail two ends are provided with a terminal coupling resistance R2, and described terminal coupling resistance R2 adopts 120 Ω, should
Resistance is attempted by between positive and negative two lines of 485 lines.
It is preferred embodiment of the present utility model above, do not limit protection domain of the present utility model, for ability
Deformation and improvement that field technique personnel make according to mentality of designing of the present utility model, all should be considered as protection of the present utility model
Within the scope of.
Claims (4)
1. a kind of circuit board for launching and receiving Bluetooth signal it is characterised in that：This circuit board comprises wireless for receiving
The bluetooth BLE radio-frequency module of signal and the communication module for communication, described bluetooth BLE radio-frequency module and communication module are electrically connected
Connect；Described bluetooth BLE radio-frequency module comprises master chip, radio frequency processing chip and antenna, described master chip and radio frequency processing chip
Electrical connection, described radio frequency processing chip and antenna connect；Described radio frequency processing chip is bluetooth specific BLUN integrated chip；Described
Master chip is CC2540 low-power consumption bluetooth chip；
0th pin of described master chip and the 1st pin ground connection GND, the 4th pin of master chip and the 10th pin meet voltage+3V3, master chip
11st pin and resistance R7, light emitting diode LD1 are grounded GND after being sequentially connected；30th pin of master chip is connected with resistance R5 and is followed by
Ground, the 29th pin of master chip, 28 pin, 27 pin, 24 pin, 21 pin are connected with power supply AVCC, 26 pin of master chip, 25 pin respectively with filter
3rd pin of ripple device B1, the 4th pin connect；1st pin of wave filter B1, the 6th pin are connected with the two ends of electric capacity C3 respectively, wave filter B1
The 1st pin and electric capacity C3 between node be connected with one end of inductance L1, the other end of inductance L1 is connected with antenna ANT1；Main core
23rd pin of piece and the input pin of crystal oscillator Y1, electric capacity C4 one end, the 22nd pin of master chip and the output pin of crystal oscillator, electric capacity C5 one end
It is sequentially connected, the electric capacity C4 other end, electric capacity C5 other end pin fixing with of crystal oscillator is connected, the electric capacity C4 other end, electric capacity C5
Node ground connection GND between the other end；40th pin of master chip is grounded GND after being connected with electric capacity C2, and wave filter B1 adopts
2540BM15A0002 model；Described communication module adopts RS485 module, the interface of RS485 module comprise balance driver and
Differential receiver.
2. the circuit board for launching and receiving Bluetooth signal according to claim 1 it is characterised in that：Described antenna is
Reversed F-typed PCB antenna or ceramic antenna.
3. the circuit board for launching and receiving Bluetooth signal according to claim 1 it is characterised in that：RS485 module
It is provided with a terminal coupling resistance R2, R2 is 120 Ω between positive and negative two lines.
4. the circuit board for launching and receiving Bluetooth signal according to claim 1 it is characterised in that：Described master chip
For CC2540F256 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390344.2U CN205945735U (en) | 2016-04-29 | 2016-04-29 | A circuit board for launching and receive bluetooth signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390344.2U CN205945735U (en) | 2016-04-29 | 2016-04-29 | A circuit board for launching and receive bluetooth signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945735U true CN205945735U (en) | 2017-02-08 |
Family
ID=57933904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620390344.2U Active CN205945735U (en) | 2016-04-29 | 2016-04-29 | A circuit board for launching and receive bluetooth signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086367A (en) * | 2017-03-03 | 2017-08-22 | 歌尔科技有限公司 | A kind of circuit board and bluetooth equipment with Bluetooth antenna |
-
2016
- 2016-04-29 CN CN201620390344.2U patent/CN205945735U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086367A (en) * | 2017-03-03 | 2017-08-22 | 歌尔科技有限公司 | A kind of circuit board and bluetooth equipment with Bluetooth antenna |
| CN107086367B (en) * | 2017-03-03 | 2020-10-09 | 歌尔科技有限公司 | Circuit board with bluetooth antenna and bluetooth equipment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |