CN110400403A - A kind of the double antenna circuit and its door lock of bluetooth - Google Patents
A kind of the double antenna circuit and its door lock of bluetooth Download PDFInfo
- Publication number
- CN110400403A CN110400403A CN201910672482.8A CN201910672482A CN110400403A CN 110400403 A CN110400403 A CN 110400403A CN 201910672482 A CN201910672482 A CN 201910672482A CN 110400403 A CN110400403 A CN 110400403A
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- antenna
- power splitter
- capacitor
- double
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Lock And Its Accessories (AREA)
Abstract
The present invention relates to a kind of double antenna circuit of bluetooth, including Bluetooth chip U1, the power splitter U2 connecting with Bluetooth chip U1 end feet BA-ANT is connect with two output ends OUT1, OUT2 of power splitter U2 onboard antenna U3 being separately connected and PCB antenna J15；The Bluetooth chip U1 signal is exported from end feet BA-ANT to power splitter U2, and is exported by power splitter U2 to onboard antenna U3 and PCB antenna J15；Or signal is input to power splitter U2 from onboard antenna U3 and PCB antenna J15, and is input to Bluetooth chip U1 from end feet BA-ANT by power splitter U2.Double transmitting antennas are arranged in the double antenna circuit of bluetooth of the present invention, emit for the signal to Bluetooth chip.This circuit is used for door lock, and double antenna transmitting is separately positioned on front door and rear panel, avoids Bluetooth signal and be shielded, and increases the smoothness unlocked or shut.
Description
Technical field
The present invention relates to door lock fields, more specifically refer to the double antenna circuit and its door lock of a kind of bluetooth.
Background technique
Door lock in the market is substantially to be incuded using the bluetooth (transmission power is small, generally below 0dB) of low-power consumption
It unlocks.But, it is contemplated that there is the door of various plates on the market, iron gate in this way in this way can shielding to Bluetooth signal.If
Door lock is single antenna design, and it is exactly plate of putting behind that Bluetooth antenna, which is not placed on front panel, necessarily leads to Men Nei or has outdoors
One bluetooth does not receive signal.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, the double antenna circuit and its door lock of a kind of bluetooth are provided.
To achieve the above object, the invention adopts the following technical scheme:
A kind of double antenna circuit of bluetooth, including Bluetooth chip U1, the function being connect with Bluetooth chip U1 end feet BA-ANT point
Device U2 is connect with two output ends OUT1, OUT2 of power splitter U2 onboard antenna U3 being separately connected and PCB antenna J15；It is described
Bluetooth chip U1 signal is exported from end feet BA-ANT to power splitter U2, and is exported by power splitter U2 to onboard antenna U3 and PCB days
Line J15；Or signal is input to power splitter U2 from onboard antenna U3 and PCB antenna J15, and defeated from end feet BA-ANT by power splitter U2
Enter to Bluetooth chip U1.
Its further technical solution are as follows: the model CY8C6347BZI-BLD53 of the Bluetooth chip U1.
Its further technical solution are as follows: the model PD1608-E 2R4BABT-LF of the power splitter U2.
Its further technical solution are as follows: between the input end feet IN and Bluetooth chip U1 end feet BA-ANT of the power splitter U2
It is connected with resistance R72；One end input end feet IN and capacitor C14 of the power splitter U2 is connect, and the capacitor C14 other end is grounded；
The Bluetooth chip U1 end feet BA-ANT is connect with the one end capacitor C15, and the capacitor C15 other end is grounded.
Its further technical solution are as follows: be connected with resistance between two output ends OUT1, OUT2 of the power splitter U2
R71, output end OUT1, OUT2 to be isolated.
Its further technical solution are as follows: be connected with resistance between the onboard antenna U3 and the output end OUT2 of power splitter U2
R2；One end output end OUT2 and capacitor C18 of the power splitter U2 is connect, and the capacitor C18 other end is grounded；The onboard antenna
U3 input terminal is connect with the one end capacitor C17, and the capacitor C17 other end is grounded.
Its further technical solution are as follows: be connected with RF connector between the onboard antenna U3 and capacitor C17；The RF connects
It meets device input terminal IN to connect with capacitor C17, output end OUT is connect with onboard antenna U3.
Its further technical solution are as follows: the model MM8030-2610RK0 of the RF connector.
A kind of any one of door lock of the double antenna circuit with bluetooth, including front panel, rear panel and claim 1 to 8 institute
The double antenna circuit for the bluetooth stated；The onboard antenna U3 is set to front panel；The PCB antenna J15 is set to rear panel.
Compared with the prior art, the invention has the advantages that: the double transmitting days of double antenna circuit setting of bluetooth of the present invention
Line emits for the signal to Bluetooth chip.This circuit be used for door lock, double antenna transmitting be separately positioned on front door and
Rear panel avoids Bluetooth signal and is shielded, and increases the smoothness unlocked or shut.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the double antenna circuit of bluetooth of the present invention；
Fig. 2 is a kind of circuit diagram of the double antenna circuit of bluetooth of the present invention.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
Such as Fig. 1 to the drawing of Fig. 2 embodiment of the present invention.
A kind of double antenna circuit of bluetooth, including Bluetooth chip U1, the function being connect with Bluetooth chip U1 end feet BA-ANT point
Device U2 is connect with two output ends OUT1, OUT2 of power splitter U2 onboard antenna U3 being separately connected and PCB antenna J15.Bluetooth
Chip U1 signal is exported from end feet BA-ANT to power splitter U2, and is exported by power splitter U2 to onboard antenna U3 and PCB antenna
J15；Or signal is input to power splitter U2 from onboard antenna U3 and PCB antenna J15, and is inputted by power splitter U2 from end feet BA-ANT
To Bluetooth chip U1.
Wherein, the model CY8C6347BZI-BLD53 of Bluetooth chip U1.The model PD1608-E of power splitter U2
2R4BABT-LF。
Resistance R72 is connected between the input end feet IN and Bluetooth chip U1 end feet BA-ANT of power splitter U2.Power splitter U2
Input end feet IN connect with the one end capacitor C14, and the capacitor C14 other end be grounded.Bluetooth chip U1 end feet BA-ANT and capacitor
The connection of the one end C15, and the capacitor C15 other end is grounded.Capacitor C15, resistance R72, capacitor C14 are used to match the resistance of Bluetooth chip U1
It is anti-, so that the signal that power splitter U2 receives Bluetooth chip U1 is relatively stable.
Be connected with resistance R71 between two output ends OUT1, OUT2 of power splitter U2, with to output end OUT1, OUT2 every
From.The 100ohm of resistance R71 be allow the impedance matching of power splitter OUT1 and OUT2 in 50ohm, and increase OUT1 and OUT2 every
From degree, reduction influences each other.
PCB antenna J15 does not reserve π shape match circuit, but the PCB antenna designed meets 50ohm impedance matching.In addition,
PCB antenna J15 carries out impedance matching with paying attention to line width and packet it is noted that same line footpath not have branch.
Resistance R2 is connected between onboard antenna U3 and the output end OUT2 of power splitter U2.The output end OUT2 of power splitter U2
It is connect with the one end capacitor C18, and the capacitor C18 other end is grounded.Onboard antenna U3 input terminal is connect with the one end capacitor C17, and electricity
Hold C17 other end ground connection.Capacitor C18, resistance R2, capacitor C17 are the impedances for matching onboard antenna U3.
RF connector is connected between onboard antenna U3 and capacitor C17.RF connector input terminal IN is connect with capacitor C17,
Output end OUT is connect with onboard antenna U3.
Wherein, the model MM8030-2610RK0 of RF connector.
A kind of any one of door lock of the double antenna circuit with bluetooth, including front panel, rear panel and claim 1 to 8 institute
The double antenna circuit for the bluetooth stated.Onboard antenna U3 is set to front panel, and PCB antenna J15 is set to rear panel.
It is separately installed with onboard antenna U3, PCB antenna J15 in front panel, the rear panel of door lock, avoids door-plate to bluetooth
The shielding of signal.
In conclusion double transmitting antennas are arranged in the double antenna circuit of bluetooth of the present invention, for the signal to Bluetooth chip into
Row transmitting.This circuit be used for door lock, double antenna transmitting is separately positioned on front door and rear panel, avoid Bluetooth signal by
Shielding increases the smoothness unlocked or shut.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of double antenna circuit of bluetooth, which is characterized in that including Bluetooth chip U1, connect with Bluetooth chip U1 end feet BA-ANT
The power splitter U2 connect, the onboard antenna U3 and PCB antenna J15 being separately connected with two output ends OUT1, OUT2 of power splitter U2
Connection；The Bluetooth chip U1 signal is exported from end feet BA-ANT to power splitter U2, and is exported by power splitter U2 to onboard antenna
U3 and PCB antenna J15；Or signal is input to power splitter U2 from onboard antenna U3 and PCB antenna J15, and by power splitter U2 from end
Foot BA-ANT is input to Bluetooth chip U1.
2. a kind of double antenna circuit of bluetooth according to claim 1, which is characterized in that the model of the Bluetooth chip U1
For CY8C6347BZI-BLD53.
3. a kind of double antenna circuit of bluetooth according to claim 2, which is characterized in that the model of the power splitter U2
PD1608-E2R4BABT-LF。
4. a kind of double antenna circuit of bluetooth according to claim 3, which is characterized in that the input terminal of the power splitter U2
Resistance R72 is connected between foot IN and Bluetooth chip U1 end feet BA-ANT；The input end feet IN and capacitor C14 of the power splitter U2
One end connection, and the capacitor C14 other end is grounded；The Bluetooth chip U1 end feet BA-ANT is connect with the one end capacitor C15, and capacitor
C15 other end ground connection.
5. a kind of double antenna circuit of bluetooth according to claim 4, which is characterized in that two of the power splitter U2 are defeated
Resistance R71 is connected between outlet OUT1, OUT2, output end OUT1, OUT2 to be isolated.
6. a kind of double antenna circuit of bluetooth according to claim 5, which is characterized in that the onboard antenna U3 and function point
Resistance R2 is connected between the output end OUT2 of device U2；One end output end OUT2 and capacitor C18 of the power splitter U2 is connect, and
Capacitor C18 other end ground connection；The onboard antenna U3 input terminal is connect with the one end capacitor C17, and the capacitor C17 other end is grounded.
7. a kind of double antenna circuit of bluetooth according to claim 6, which is characterized in that the onboard antenna U3 and capacitor
RF connector is connected between C17；The RF connector input terminal IN is connect with capacitor C17, output end OUT and onboard antenna U3
Connection.
8. a kind of double antenna circuit of bluetooth according to claim 7, which is characterized in that the model of the RF connector
MM8030-2610RK0。
9. a kind of door lock of the double antenna circuit with bluetooth, which is characterized in that including front panel, rear panel and claim 1 to 8
The double antenna circuit of described in any item bluetooths；The onboard antenna U3 is set to front panel；The PCB antenna J15 is set to below
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672482.8A CN110400403A (en) | 2019-07-24 | 2019-07-24 | A kind of the double antenna circuit and its door lock of bluetooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672482.8A CN110400403A (en) | 2019-07-24 | 2019-07-24 | A kind of the double antenna circuit and its door lock of bluetooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110400403A true CN110400403A (en) | 2019-11-01 |
Family
ID=68325957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910672482.8A Pending CN110400403A (en) | 2019-07-24 | 2019-07-24 | A kind of the double antenna circuit and its door lock of bluetooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110400403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708802A (en) * | 2021-04-23 | 2021-11-26 | 浙江利尔达物联网技术有限公司 | Module and method for promoting Bluetooth link budget and solving multipath effect |
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| WO2001086853A2 (en) * | 2000-05-11 | 2001-11-15 | Microlind Aktiebolag | System for communication on a computer unit |
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN105389872A (en) * | 2015-12-04 | 2016-03-09 | 四川长城软件科技股份有限公司 | Intelligent Bluetooth access control system combined with regional determination |
| CN206021402U (en) * | 2016-09-12 | 2017-03-15 | 南京欣网通信科技股份有限公司 | A kind of off-line cipher lock control device of low-power consumption |
| CN206323378U (en) * | 2017-01-09 | 2017-07-11 | 博慧电子科技(漳州)有限公司 | A kind of bluetooth electric machine controller of setting double antenna |
| CN107948961A (en) * | 2017-12-23 | 2018-04-20 | 北京智辉空间科技有限责任公司 | Bluetooth alignment system and method |
| CN109216907A (en) * | 2018-09-05 | 2019-01-15 | 锐捷网络股份有限公司 | A kind of double-feed antenna and electronic equipment |
-
2019
- 2019-07-24 CN CN201910672482.8A patent/CN110400403A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001086853A2 (en) * | 2000-05-11 | 2001-11-15 | Microlind Aktiebolag | System for communication on a computer unit |
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN105389872A (en) * | 2015-12-04 | 2016-03-09 | 四川长城软件科技股份有限公司 | Intelligent Bluetooth access control system combined with regional determination |
| CN206021402U (en) * | 2016-09-12 | 2017-03-15 | 南京欣网通信科技股份有限公司 | A kind of off-line cipher lock control device of low-power consumption |
| CN206323378U (en) * | 2017-01-09 | 2017-07-11 | 博慧电子科技(漳州)有限公司 | A kind of bluetooth electric machine controller of setting double antenna |
| CN107948961A (en) * | 2017-12-23 | 2018-04-20 | 北京智辉空间科技有限责任公司 | Bluetooth alignment system and method |
| CN109216907A (en) * | 2018-09-05 | 2019-01-15 | 锐捷网络股份有限公司 | A kind of double-feed antenna and electronic equipment |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708802A (en) * | 2021-04-23 | 2021-11-26 | 浙江利尔达物联网技术有限公司 | Module and method for promoting Bluetooth link budget and solving multipath effect |
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Application publication date: 20191101 |
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