CN209387879U - A kind of GNSS receiver circuit of double WIFI antennas - Google Patents
A kind of GNSS receiver circuit of double WIFI antennas Download PDFInfo
- Publication number
- CN209387879U CN209387879U CN201822058955.9U CN201822058955U CN209387879U CN 209387879 U CN209387879 U CN 209387879U CN 201822058955 U CN201822058955 U CN 201822058955U CN 209387879 U CN209387879 U CN 209387879U
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- wifi
- antenna
- external
- power splitter
- gnss receiver
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Abstract
The utility model discloses a kind of GNSS receiver circuits of double WIFI antennas, including WIFI module, antenna power splitter, built-in WIFI antenna and external antenna interface, WIFI module is electrically connected with antenna power splitter, antenna power splitter is electrically connected with built-in WIFI antenna, antenna power splitter is electrically connected with external antenna interface, external antenna interface is for connecting external WIFI antenna, in which: WIFI module is used for antenna power splitter transmitting radio frequency signal；Antenna power splitter, for built-in WIFI antenna transmission radiofrequency signal and to external WIFI antennal interface transmitting radio frequency signal；Built-in WIFI antenna, for responding radiofrequency signal and emitting WIFI signal；External antenna interface is used for radio signal transmission to external WIFI antenna.Implement the utility model embodiment, can offer convenience with test for debugging and increase communication distance, to keep WIFI signal covering surface wider, and then adapts to complicated geographical environment.
Description
Technical field
The utility model relates to electronic circuit technology fields, and in particular to a kind of GNSS receiver electricity of double WIFI antennas
Road.
Background technique
Global Navigation Satellite System (Global Navigation Satellite System, GNSS) receiver is extensive
Applied to carrying out long-term detection to bridge earth's surface.Common, GNSS receiver is needed in use through wireless connection technology
(Wlreless-Fldelity, WIFI) such as WIFI module come realize receive information and downloading data operate.In practice
It was found that it is shorter using only the communication distance that built-in WIFI antenna will lead to GNSS receiver, and external WIFI antenna is used only
It will lead to inconvenience when debugging and test.
Utility model content
The utility model embodiment discloses a kind of GNSS receiver circuit of double WIFI antennas, can be debugging and calibration tape
Communication distance is facilitated and increased, to keep the WIFI signal covering surface wider, and then adapts to complicated geographical environment.
The utility model embodiment discloses a kind of GNSS receiver circuit of double WIFI antennas, double WIFI antennas
GNSS receiver circuit includes WIFI module, antenna power splitter, built-in WIFI antenna and external antenna interface, the WIFI mould
Block is electrically connected with the antenna power splitter, and the antenna power splitter is electrically connected with the built-in WIFI antenna, the antenna function point
Device is electrically connected with the external antenna interface, and the external antenna interface is for connecting external WIFI antenna, in which:
The WIFI module is used for the antenna power splitter transmitting radio frequency signal；
The antenna power splitter, for radiofrequency signal described in the built-in WIFI antenna transmission and to described external
WIFI antennal interface transmits the radiofrequency signal；
The built-in WIFI antenna, for responding the radiofrequency signal and emitting WIFI signal；
The external antenna interface is used for the radio signal transmission to external WIFI antenna.
As an alternative embodiment, in embodiments of the present invention, the model of the WIFI module
WL1837MOD。
As an alternative embodiment, in embodiments of the present invention, the model of the antenna power splitter
PD2425J5050S2HF。
As an alternative embodiment, in embodiments of the present invention, the GNSS receiver electricity of double WIFI antennas
Road further includes the first connector and the second connector, first connector for connect the antenna power splitter with it is described built-in
WIFI antenna, second connector is for connecting the antenna power splitter and the external antenna interface.
As an alternative embodiment, in embodiments of the present invention, first connector is connect with described second
The model of device is U.FL-R-SMT-1.
As an alternative embodiment, in embodiments of the present invention, the GNSS receiver electricity of double WIFI antennas
Road further includes decoupling circuit, and the decoupling circuit is electrically connected with the WIFI module, and the decoupling circuit is described for removing
The input noise and shake of WIFI module.
Compared with prior art, the utility model embodiment has the advantages that
In the utility model embodiment, the GNSS receiver circuit of double WIFI antennas include WIFI module, antenna power splitter,
Built-in antenna and external antenna interface.Wherein, WIFI module is responsible for antenna power splitter transmitting radio frequency signal.Antenna power splitter
It is responsible for the radiofrequency signal of response WIFI module, and to radiofrequency signal in built-in antenna transmission, also external antennal interface is transmitted outer
Radiofrequency signal.Implement the utility model embodiment and be not required to external external antenna in debugging and test phase, to debug and testing
Bring convenience.Debugging with test complete normal use when, external antenna interface can external external antenna, in antenna power splitter
Under the action of, built-in antenna and external antenna can receive or transmit WIFI signal, and WIFI signal is made to have intensity high and cover
The wide advantage of capping, to adapt to complicated geographical environment.
Detailed description of the invention
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of schematic diagram of circuit disclosed in the utility model embodiment；
Fig. 2 is the schematic diagram of another kind circuit disclosed in the utility model embodiment；
Fig. 3 be another kind circuit disclosed in the utility model embodiment (lack built-in WIFI antenna, external antenna interface with
And external WIFI antenna) circuit diagram；
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that term " includes " in the utility model embodiment and attached drawing and " having " and they are any
Deformation, it is intended that cover and non-exclusive include.Such as contain the process, method, system, product of a series of steps or units
Or equipment is not limited to listed step or unit, but optionally further comprising the step of not listing or unit, or can
Selection of land further includes the other step or units intrinsic for these process, methods, product or equipment.
The utility model embodiment discloses a kind of GNSS receiver circuit of double WIFI antennas, can transmit WIFI module
Radiofrequency signal be divided into two, be transmitted separately to built-in WIFI antenna and external antenna interface, connecting upper external WIFI antenna
Afterwards, WIFI signal intensity height and broad covered area.
Referring to Fig. 1, Fig. 1 is a kind of GNSS receiver circuit of double WIFI antennas disclosed in the utility model embodiment
Schematic diagram.The GNSS receiver circuit of double WIFI antennas includes WIFI module 101, antenna power splitter 102, built-in WIFI antenna
103 and external antenna interface 104, WIFI module 101 be electrically connected with antenna power splitter 102, antenna power splitter 102 with it is built-in
WIFI antenna 103 is electrically connected, and antenna power splitter 102 is electrically connected with external antenna interface 104, and external antenna interface 104 is for connecting
Connect external WIFI antenna, in which:
WIFI module 101 is used for 102 transmitting radio frequency signal of antenna power splitter；
Antenna power splitter 102, for being transmitted to built-in 103 transmitting radio frequency signal of WIFI antenna and to external antennal interface
Radiofrequency signal；
Built-in WIFI antenna 103, for responding radiofrequency signal and emitting WIFI signal；
External antenna interface 104 is used for radio signal transmission to external WIFI antenna.
In the present embodiment, in the GNSS receiver, the central processing unit of WIFI module 101 and GNSS receiver
(CentralProcessingUnit, CPU) is connected.After the starting-up signal for receiving GNSS receiver CPU, start WIFI
Module 101.After CPU is instructed to 101 sent-received message of WIFI module or downloading data instructs, WIFI module 101 can Xiang Tian
It is identical to become two-way so that the radiofrequency signal can be divided into two by antenna power splitter 102 for 102 transmitting radio frequency signal of line power splitter
Radiofrequency signal.Then will wherein radio signal transmission is to built-in WIFI antenna 103 all the way, extremely by another way radio signal transmission
External antenna interface 104.
Wherein, WIFI module 101 is model WL1837MOD, the model support IEEE802.11b,
Tri- kinds of standards of IEEE802.11g and IEEE802.11n, meet use demand in the market.The model of antenna power splitter 102 can
For PD2425J5050S2HF.
Referring to Fig. 2, Fig. 2 is the GNSS receiver circuit of the double WIFI antennas of another kind disclosed in the utility model embodiment
Schematic diagram.During debugging is with test, not external external WIFI antenna 105 only uses built-in WIFI antenna 103
Complete the work of debugging with test.After debugging is with test, external external WIFI antenna 105 makes built-in WIFI antenna 103
It is used in conjunction with external WIFI antenna 105, improves the WIFI signal intensity of GNSS receiver.
In the present embodiment, the GNSS receiver circuit of double WIFI antennas further includes the first connector and the second connector,
First connector is identical as the second connector.With the first connector for connecting antenna power splitter 102 and built-in WIFI antenna
103, the second connector is illustrated for being used to connect antenna power splitter 102 and external antenna interface 104.
Wherein, the first connector and the second connector be model U.FL-R-SMT-1 antenna stand.
It is the circuit diagram of another kind circuit disclosed in the utility model embodiment with Fig. 3, Fig. 3 referring to Figure 2 together.
It is illustrated with 101 model WL1837MOD-V1.0 of WIFI module, the WIFI module 101 of this model further includes indigo plant
Tooth function.The pin 1 of WIFI module 101 receives the two-way order of CPU transmission and corresponding signal, the pin 2 of WIFI module 101 connect
The clock signal of CPU transmission is received, the pin 3- pin 6 of WIFI module 101 receives the data-signal of CPU transmission, WIFI module 101
Pin 7 receive CPU openings WIFI module 101 or closing WIFI module 101 instruction.Wherein pin 1, pin 3- pin 6
Pull-up resistor is provided with the circuit connection of CPU.Pull-up resistor is respectively R78, the R1529-R1532 in the Europe 10K.WIFI mould
The pin 13 of block 101 is used for transmission Transmission signal.The pin 16 of WIFI module 101 is used for transmission WIFI sleep clock letter
Number.
The pin 17- pin 21 of WIFI module 101 with bluetooth module for being communicated, and wherein pin 17 receives CPU's
It opens bluetooth module signal or closes bluetooth module signal.
The pin 22 of WIFI module 101 connects fixed power source voltage, and the pin 23 of WIFI module 101 connects supply voltage.WIFI
The pin 8,10,12 and 24 of module 101 is grounded.
The pin 22 and pin 23 of WIFI module 101 are respectively connected with decoupling circuit 109, and pin 22 is connected to fixed voltage
+ 1.8V and capacitor C173, C174.Pin 23 is connected to supply voltage VCC and capacitor C175, C176.The circuit is for removing electricity
Source shake.
WIFI module 101 is electrically connected with antenna power splitter 102.The pin 11 of WIFI module 101 is used for antenna power splitter
102 transmitting radio frequency signals.
It is illustrated with 102 model PD2425J5050S2HF of antenna power splitter, the pin 2 of antenna power splitter 102 receives
The radiofrequency signal of 101 pin 11 of WIFI module transmission.The pin 1,3 and 5 of antenna power splitter 102 is grounded.Antenna power splitter 102
It is electrically connected with the first connector, antenna power splitter 102 is electrically connected with the second connector, herein the first connector and the second connector
Substantive difference is had no, difference name simply facilitates explanation.The pin 6 of antenna power splitter 102 is believed to the first connector transmission radio frequency
Number, the pin 4 of antenna power splitter 102 is to the second connector transmitting radio frequency signal.The pin 4 of antenna power splitter 102 and pin 6 it
Between be connected with the R1533 in 100 Europe.
Wherein, the first connector and the second connector can be the antenna stand of U.FL-R-SMT-1 for model.
The radiofrequency signal that the pin 6 of the 1 receiving antenna power splitter 102 of pin of first connector transmits, the first connector is also
It is electrically connected with built-in WIFI antenna 103.It is connect by pin 1 with built-in WIFI antenna 103 and by radio signal transmission to built-in
WIFI antenna 103.The pin 2,3 and 4 of first connector is grounded.
Built-in WIFI antenna 103 is not shown in circuit diagram (Fig. 3), and 2.4G ceramics day can be used in built-in WIFI antenna 103
Line.
Then the radiofrequency signal that the pin 4 of the 1 receiving antenna power splitter 102 of pin of second connector transmits passes through pin 1
It is connect with external antenna interface 104 and by radio signal transmission to external antenna interface 104.The pin 2,3 of second connector with
And 4 ground connection.
External antenna interface 104 is not shown in circuit diagram (Fig. 3), and SMA interface can be used in external antenna interface 104.Outside
It sets WIFI antenna 105 not show in circuit diagram (Fig. 3), external WIFI antenna 105 can be connect with external antenna interface 104, be used
The external WIFI antenna 105 that suitable actual scene can be selected in family is attached.
Decoupling circuit 108 is electrically connected with WIFI module 101, and decoupling circuit 108 is used to remove 22 pins of WIFI module 101
With the shake of power supply line and noise connected on 23 pins.
In conclusion implementing a kind of GNSS receiver circuit of double WIFI antennas disclosed in the utility model embodiment.It is logical
It crosses and the radiofrequency signal received from WIFI module is divided into two using antenna power splitter, then in radiofrequency signal is transmitted separately to
WIFI antenna and external WIFI antenna are set, makes GNSS receiver that there is high-intensitive and wide area coverage WIFI signal.
A kind of GNSS receiver circuit of double WIFI antennas disclosed in the utility model embodiment has been carried out in detail above
It introduces, specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Illustrate the core concept for being merely used to help understand the utility model；At the same time, for those skilled in the art, according to this
The thought of utility model, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification
It should not be construed as a limitation of the present invention.
Claims (6)
1. a kind of GNSS receiver circuit of double WIFI antennas, which is characterized in that the GNSS receiver electricity of double WIFI antennas
Road includes WIFI module, antenna power splitter, built-in WIFI antenna and external antenna interface, the WIFI module and the antenna
Power splitter electrical connection, the antenna power splitter is electrically connected with the built-in WIFI antenna, the antenna power splitter with it is described external
Antennal interface electrical connection, the external antenna interface is for connecting external WIFI antenna, in which:
The WIFI module is used for the antenna power splitter transmitting radio frequency signal；
The antenna power splitter, for radiofrequency signal described in the built-in WIFI antenna transmission and to described external WIFI days
Line interface transmits the radiofrequency signal；
The built-in WIFI antenna, for responding the radiofrequency signal and emitting WIFI signal；
The external antenna interface is used for the radio signal transmission to external WIFI antenna.
2. the GNSS receiver circuit of double WIFI antennas according to claim 1, which is characterized in that the WIFI module
Model WL1837MOD.
3. the GNSS receiver circuit of double WIFI antennas according to claim 2, which is characterized in that the antenna power splitter
Model PD2425J5050S2HF.
4. the GNSS receiver circuit of double WIFI antennas according to claim 3, which is characterized in that double WIFI antennas
GNSS receiver circuit further include the first connector and the second connector, first connector is for connecting the antenna function
Divide device and the built-in WIFI antenna, second connector connects for connecting the antenna power splitter with the external antenna
Mouthful.
5. the GNSS receiver circuit of double WIFI antennas according to claim 4, which is characterized in that first connector
Model with second connector is U.FL-R-SMT-1.
6. the GNSS receiver circuit of double WIFI antennas according to claim 1-4, which is characterized in that described double
The GNSS receiver circuit of WIFI antenna further includes decoupling circuit, and the decoupling circuit is electrically connected with the WIFI module, described
Decoupling circuit is used to remove the input noise and shake of the WIFI module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058955.9U CN209387879U (en) | 2018-12-07 | 2018-12-07 | A kind of GNSS receiver circuit of double WIFI antennas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058955.9U CN209387879U (en) | 2018-12-07 | 2018-12-07 | A kind of GNSS receiver circuit of double WIFI antennas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209387879U true CN209387879U (en) | 2019-09-13 |
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ID=67871342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822058955.9U Active CN209387879U (en) | 2018-12-07 | 2018-12-07 | A kind of GNSS receiver circuit of double WIFI antennas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209387879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904699A (en) * | 2021-10-08 | 2022-01-07 | 深圳国人无线通信有限公司 | Method for detecting installation error of external antenna and radio frequency unit |
-
2018
- 2018-12-07 CN CN201822058955.9U patent/CN209387879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904699A (en) * | 2021-10-08 | 2022-01-07 | 深圳国人无线通信有限公司 | Method for detecting installation error of external antenna and radio frequency unit |
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