CN106464289A - A 5.8 G long-distance wireless data transmission system - Google Patents
A 5.8 G long-distance wireless data transmission system Download PDFInfo
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- CN106464289A CN106464289A CN201580015900.6A CN201580015900A CN106464289A CN 106464289 A CN106464289 A CN 106464289A CN 201580015900 A CN201580015900 A CN 201580015900A CN 106464289 A CN106464289 A CN 106464289A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Computer Networks & Wireless Communication (AREA)
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Abstract
A 5.8 G long-distance wireless data transmission system is provided. The system comprises a communication interface circuit, a 5.8 G wireless receiving and transmitting unit, a first high-frequency electronic switch unit, a mode switching control unit, a 5.8 G power amplification unit, a pre-position low-noise amplification unit, a second high-frequency electronic switch unit, an antenna and a power supply unit. data flow is transmitted to the 5.8 G wireless receiving and transmitting unit through the communication interface circuit, and is modulated by the 5.8 G wireless receiving and transmitting unit into a data packet meeting a set format. A pulse signal is generated and sent to the mode switching control unit. The mode switching control unit according to the pulse signal controls the first and second high-frequency electronic switch units to switch into a sending mode or transmitting mode. The power supply unit is used for supplying power to each unit in the system. Beneficial effects of the system are high anti-interference performance and not liable data loss.
Description
Technical field
The present invention relates to field of data transmission, particularly to a kind of 5.8G remote-wireless data transmission system.
Background technology
When receiving and dispatching to data, its frequency range used is all in 2.4G citizens' radio band to conventional art, in this frequency range
Data can be launched, also data can be received.Too frequent due to used with this frequency range, for example：Blue
Tooth uses 2.4G frequency range, and what wifi used is also 2.4G frequency range, so will result in 2.4G frequency range unclean.If it is unmanned
If machine 2.4G frequency range, because everybody is using this frequency range, thus can there is interference, virtually packet loss is just very high,
Everybody sometimes will result in traffic rate and bandwidth do not reach so high, after packet loss, data is entered using 2.4G frequency range
Row is retransmitted, and such as interface bandwidth is 2M, after being disturbed, when data is retransmitted, 1 second possible letter that just can only send 1M
Breath, because frequent packet loss, loses and will retransmit, it is all useless sometimes to retransmit, and such data just lost completely.So, traditional number
According to transmitting-receiving, anti-interference is poor, data is easily lost.
Content of the invention
The technical problem to be solved in the present invention is, for prior art above-mentioned anti-interference is poor, data is easily lost
Defect, the 5.8G remote-wireless data transmission system that a kind of anti-interference is relatively strong, data is not easy to lose is provided.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of 5.8G remote-wireless data transfer
System, including communication interface circuit, 5.8G wireless transmit/receive units, the first high frequency electronic switch unit, pattern switching control unit,
5.8G power amplification unit, preposition low noise amplification unit, the second high frequency electronic switch unit, antenna and power supply power supply unit,
Data flow is sent to described 5.8G wireless transmit/receive units by described communication interface circuit, and described 5.8G wireless transmit/receive units are by institute
State data flow and be modulated into and meet the packet setting form, produce pulse signal and send it to described pattern switching control list
Unit, described pattern switching control unit controls described first high frequency electronic switch unit and the second high frequency according to described pulse signal
Electronic switch unit is accordingly switched to sending mode or reception pattern, and when being switched to described sending mode, described 5.8G is wireless
Described packet is sent to described 5.8G power amplification unit by described first high frequency electronic switch unit and enters by Transmit-Receive Unit
Row power amplification, the signal after amplifying is passed through described second high frequency electronic switch unit and sends by described 5.8G power amplification unit
To described antenna, the signal after described amplification is launched by described antenna, when being switched to described reception pattern, described antenna
Receive 5.8G radiofrequency signal and described preposition low noise amplification list is sent to by described second high frequency electronic switch unit
Unit, described preposition low noise amplification unit is carried out after low level signal amplification to described 5.8G radiofrequency signal, and by amplify after 5.8G
Radiofrequency signal is sent to described 5.8G wireless transmit/receive units by described first high frequency electronic switch unit, and described power supply is powered list
Unit respectively with described communications interface unit, 5.8G wireless transmit/receive units, 5.8G power amplification unit and preposition low noise amplification list
Unit connects and is used for powering.
In 5.8G remote-wireless data transmission system of the present invention, also include for filtering interference signals
5.8G band filter, one end of described 5.8G band filter is connected with described second high frequency electronic switch unit, the other end
It is connected with described antenna.
In 5.8G remote-wireless data transmission system of the present invention, described communication interface circuit includes USB and connects
Mouth, serial ports and SPI interface, described 5.8G wireless transmit/receive units include 5.8G radio transmitting and receiving chip, described 5.8G wireless receiving and dispatching core
Piece is provided with USB interface pin, serial ports pin and SPI interface pin, and described USB interface pin is connected with described USB interface, described
Serial ports pin is connected with described serial ports, and described SPI interface pin is connected with described SPI interface.
In 5.8G remote-wireless data transmission system of the present invention, described first high frequency electronic switch unit bag
Include the first high frequency electronic switch, described second high frequency electronic switch unit includes the second high frequency electronic switch, described first high frequency
Electrical switch and the second high frequency electronic switch are equipped with six pins, described pattern switching control unit include the first audion,
Second audion, the 3rd audion, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance and the 16th electricity
Resistance, one end of described 4th resistance is connected with the second pin of described 5.8G radio transmitting and receiving chip, described 4th resistance another
End is connected with the base stage of described second audion, the colelctor electrode of described second audion respectively with described second resistance, the first height
4th pin of band electronic switch, the 4th pin of the second high frequency electronic switch and preposition low noise amplification unit connect, described
The colelctor electrode of the second audion is connected with the base stage of described first audion also by described 3rd resistor, described first audion
Emitter stage be connected with described first resistor, the colelctor electrode of described first audion is connected with described 5.8G power amplification unit,
The colelctor electrode of described second audion is connected with the base stage of described 3rd audion also by described 5th resistance, and the described 3rd 3
The colelctor electrode of pole pipe respectively with described 16th resistance, the 6th pin of the first high frequency electronic switch and the second high frequency electronic switch
The 6th pin connect.
In 5.8G remote-wireless data transmission system of the present invention, described preposition low noise amplification unit includes
Pre-low-noise amplifier, radio frequency matching circuit and the 19th electric capacity, described pre-low-noise amplifier is provided with six pins, institute
State radio frequency matching circuit and include the 7th electric capacity, the 8th electric capacity, the 13rd electric capacity, the 14th electric capacity and the 5th inductance, described preposition
3rd pin of low-noise amplifier one end with one end, one end of the 5th inductance and the 8th electric capacity of described 7th electric capacity respectively
Connect, the other end of described 8th electric capacity is connected with described one end of 13rd electric capacity and one end of the 14th electric capacity respectively, institute
The other end stating the 14th electric capacity is connected with the first pin of described second high frequency electronic switch, described 7th electric capacity another
The other end of end, the other end of the 5th inductance and the 13rd electric capacity is all grounded, the 4th pin of described pre-low-noise amplifier
It is connected with the first pin of described first high frequency electronic switch by described 19th electric capacity.
In 5.8G remote-wireless data transmission system of the present invention, described 5.8G power amplification unit includes
5.8G power amplifier, the 16th electric capacity and the 32nd electric capacity, the 3rd pin of described 5.8G power amplifier is by described
16th electric capacity is connected with the 3rd pin of described first high frequency electronic switch, the 13rd pin of described 5.8G power amplifier
It is connected with the 3rd pin of described second high frequency electronic switch by described 32nd electric capacity.
In 5.8G remote-wireless data transmission system of the present invention, described wireless system for transmitting data also includes
Radio frequency matching network, described radio frequency matching network includes the 15th electric capacity, the 17th electric capacity, the 18th electric capacity, the 27th electricity
Appearance, the first inductance, the second inductance and the 4th inductance, described first high frequency electronic switch unit also includes the 48th electric capacity, institute
The 4th pin stating 5.8G radio transmitting and receiving chip is connected with described one end of 15th electric capacity and one end of the first inductance respectively, institute
The other end stating the 15th electric capacity is connected with one end of described second inductance, and the other end of described second inductance is respectively with described
One end connection, the other end of described 48th electric capacity and described first high frequency of one end of 48 electric capacity and the 17th electric capacity
5th pin of electrical switch connects, and the 3rd pin of described 5.8G radio transmitting and receiving chip is another with described first inductance respectively
End, one end of one end of the 18th electric capacity and the 4th inductance connect, the second pin of described 5.8G radio transmitting and receiving chip respectively with
One end of the other end, one end of the 27th electric capacity and described 4th resistance of described 4th inductance connects, described 17th electricity
The other end, the other end of the 18th electric capacity and the other end of the 27th electric capacity that hold all are grounded.
In 5.8G remote-wireless data transmission system of the present invention, the number of described USB interface pin is two
Individual, the number of described serial ports pin is two, and the number of described SPI interface pin is four.
In 5.8G remote-wireless data transmission system of the present invention, described second high frequency electronic switch unit is also
Including the 21st electric capacity, one end of described 5.8G band filter is by described 21st electric capacity and described second high-frequency electrical
5th pin of son switch connects.
In 5.8G remote-wireless data transmission system of the present invention, described wireless system for transmitting data also includes
7th inductance, described antenna includes the 20th electric capacity and multiple antenna terminal, and the other end of described 5.8G band filter is successively
It is connected with one of antenna terminal of described antenna by described 7th inductance and the 20th electric capacity.
Implement the 5.8G remote-wireless data transmission system of the present invention, have the advantages that：Due to using 5.8G
Wireless transmit/receive units carry out transmission or the reception of data, thus avoid conventional 2.4G frequency range, 5.8G frequency range is comparatively
It is a relatively cleaner frequency range, so its anti-interference is relatively strong, data is not easy to lose.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation in unified embodiment of 5.8G remote-wireless data transmission system of the present invention；
Fig. 2 is the circuit knot of communication interface circuit, 5.8G wireless transmit/receive units and radio frequency matching network in described embodiment
Structure schematic diagram；
Fig. 3 is the electrical block diagram of pattern switch control unit in described embodiment；
Fig. 4 is the first high frequency electronic switch unit, preposition low noise amplification unit and the second high-frequency electrical in described embodiment
The electrical block diagram of sub- switch element；
Fig. 5 is the electrical block diagram of 5.8G power amplification unit in described embodiment；
Fig. 6 is the electrical block diagram of 5.8G band filter and antenna in described embodiment；
Fig. 7 is the electrical block diagram of power supply power supply unit in described embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
In 5.8G remote-wireless data transmission system embodiment of the present invention, its 5.8G remote-wireless data transmission system
The structural representation of system is as shown in Figure 1.In Fig. 1, the operating frequency range of this 5.8G remote-wireless data transmission system work
For 5.725G Hz-5.8G5G Hz.This 5.8G remote-wireless data transmission system includes communication interface circuit 101,5.8G no
Line Transmit-Receive Unit 102, the first high frequency electronic switch unit 103, pattern switching control unit 104,5.8G power amplification unit
105th, preposition low noise amplification unit 106, the second high frequency electronic switch unit 107, antenna 108 and power supply power supply unit 109, its
In, communication interface circuit 101 user input or output stream, in the present embodiment, the form of data flow is not required, for example：
It can be audio frequency in 2M bandwidth it is also possible in the telecommand of transmission remote control or MP3, the 2M bandwidth of bluetooth
Data flow.Specifically, data flow is sent to 5.8G wireless transmit/receive units 102 by communication interface circuit 101, and 5.8G wirelessly receives
After bill unit 102 receives this data flow, this data flow is modulated into and meets the packet setting form, in the present embodiment, should
Set form as GFSK form, that is, data stream is carried out be GFSK modulation, the packet after modulation is to meet GFSK lattice
The packet of formula, the packet that this meets GFSK form belongs to 5.8G radiofrequency signal in fact.Data stream is being modulated into
After packet, emission mode opened by software, and at this moment, 5.8G wireless transmit/receive units 102 produce pulse signal, and this pulse is believed
Number it is sent to pattern switching control unit 104, then, pattern switching control unit 104 controls the first high frequency according to pulse signal
Electronic switch unit 103 and the second high frequency electronic switch unit 107 are accordingly switched to sending mode or reception pattern, are worth mentioning
, when pulse signal is switched to low level moment, the first high frequency electronic switch unit 103 and the second high-frequency electrical by high level
Sub- switch element 107 is simultaneously switching to sending mode, when pulse signal is switched to the moment of high level, the first high frequency by low level
Electronic switch unit 103 and the second high frequency electronic switch unit 107 are simultaneously switching to reception pattern.Certainly, in the present embodiment
It is also possible to be arranged to contrary under certain situation, when pulse signal is switched to low level moment, the first high-frequency electrical by high level
Sub- switch element 103 and the second high frequency electronic switch unit 107 are simultaneously switching to reception pattern, when pulse signal is cut by low level
Change to the moment of high level, the first high frequency electronic switch unit 103 and the second high frequency electronic switch unit 107 are simultaneously switching to send out
Send pattern, but at this moment, the circuit structure of pattern switching control unit 104 also will accordingly be modified.
In the present embodiment, when the first high frequency electronic switch unit 103 and the second high frequency electronic switch unit 107 are switched to and send out
When sending pattern, packet is sent to 5.8G power by the first high frequency electronic switch unit 103 by 5.8G wireless transmit/receive units 102
Amplifying unit 105 carries out power amplification, and the signal after amplifying is passed through the second high frequency electronic switch by 5.8G power amplification unit 105
Unit 107 is sent to antenna 108, is launched the signal after amplifying by antenna 108, when the first high frequency electronic switch unit
103 and the second high frequency electronic switch unit 107 when being switched to reception pattern, antenna 108 receives 5.8G radiofrequency signal, and will receive
5.8G radiofrequency signal preposition low noise amplification unit 106, preposition low noise are sent to by the second high frequency electronic switch unit 107
Sound amplifying unit 106 is carried out after low level signal amplification to 5.8G radiofrequency signal, and the 5.8G radiofrequency signal after amplifying is passed through first
High frequency electronic switch unit 103 is sent to 5.8G wireless transmit/receive units 102, power supply power supply unit 109 respectively with communication interface list
Unit 101,5.8G wireless transmit/receive units 102,5.8G power amplification unit 105 and preposition low noise amplification unit 106 connect, and are used in combination
In to communications interface unit 101,5.8G wireless transmit/receive units 102,5.8G power amplification unit 105 and preposition low noise amplification list
Unit 106 power supply.Due to carrying out transmission or the reception of data using 5.8G wireless transmit/receive units 102, thus avoid conventional
2.4G frequency range, comparatively 5.8G frequency range is a relatively cleaner frequency range, and 5.8G band interference is less, so its anti-interference is relatively
By force, stability preferably, data not easy to lose.Meanwhile, power amplification, such data are carried out using 5.8G power amplification unit 105
The distance of transmission will be remote, by arranging preposition low noise amplification unit 106, small-signal (useful signal) is amplified, this
Sample will improve the sensitivity of reception.
In the present embodiment, this 5.8G remote-wireless data transmission system also includes 5.8G band filter BF2, this 5.8G
Band filter BF2 is used for filtering interference signals, one end of 5.8G band filter BF2 and the second high frequency electronic switch unit
107 connections, the other end is connected with antenna 108.By filtering interference signals, thus can further improve the sensitive of reception
Degree.In the present embodiment, this 5.8G remote-wireless data transmission system also includes radio frequency matching network 111, radio frequency matching network
111 are connected with 5.8G wireless transmit/receive units 102 and the first high frequency electronic switch unit 103 respectively.
Fig. 2 is the circuit structure of communication interface circuit, 5.8G wireless transmit/receive units and radio frequency matching network in the present embodiment
Schematic diagram；Fig. 3 is the electrical block diagram of pattern switch control unit in the present embodiment；Fig. 4 is the first height in the present embodiment
The electrical block diagram of band electronic switch element, preposition low noise amplification unit and the second high frequency electronic switch unit；Fig. 5 is
The electrical block diagram of 5.8G power amplification unit in the present embodiment；Fig. 6 is 5.8G band filter and sky in the present embodiment
The electrical block diagram of line；Fig. 7 is the electrical block diagram of power supply power supply unit in the present embodiment.
As shown in Fig. 2 communication interface circuit 101 includes USB interface J1, serial ports and SPI interface, serial ports has two, respectively
For first serial P20 and second serial P21, SPI interface has four, the respectively first SPI interface P04, the second SPI interface P05,
3rd SPI interface P06 and the 4th SPI interface P07,5.8G wireless transmit/receive units 102 include 5.8G radio transmitting and receiving chip U1,5.8G
Radio transmitting and receiving chip U1 is provided with USB interface pin, serial ports pin and SPI interface pin, and the number of USB interface pin is two,
It is respectively the 15th pin and the 16th pin, the number of serial ports pin is two, the respectively the 27th pin and the 20th
Eight pins, the number of SPI interface pin is four, the respectively the 22nd pin, the 23rd pin, the 24th pin and
25th pin.USB interface pin is connected with USB interface J1, serial ports pin and serial ports P20, P21, SPI interface pin with
SPI interface P04, P05, P06, P07 connect.It is noted that in the present embodiment, USB interface J1, serial ports and SPI interface are all
It is two-way.In the present embodiment, the price comparison of 5.8G radio transmitting and receiving chip U1 is cheap, so can be with reduces cost.
As shown in Figure 3 and Figure 4, the first high frequency electronic switch unit 103 includes the first high frequency electronic switch U8, the second high frequency
Electronic switch unit 107 includes the second high frequency electronic switch U3, the first high frequency electronic switch U8 and the second high frequency electronic switch U3
Be equipped with six pins, pattern switching control unit 104 include the first audion Q1, the second audion Q2, the 3rd audion Q3,
First resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5 and the 16th resistance R16, the 4th electricity
One end of resistance R4 is connected with the second pin of 5.8G radio transmitting and receiving chip U1, the other end of the 4th resistance R4 and the second audion Q2
Base stage connect, the colelctor electrode of the second audion Q2 respectively with second resistance R2, the 4th pin of the first high frequency electronic switch U8,
4th pin of the second high frequency electronic switch U3 and preposition low noise amplification unit 106 connect, the colelctor electrode of the second audion Q2
It is connected with the base stage of the first audion Q1 also by 3rd resistor R3, the emitter stage of the first audion Q1 is with first resistor R1 even
Connect, the colelctor electrode of the first audion Q1 is connected with 5.8G power amplification unit 102, the colelctor electrode of the second audion Q2 is also by
Five resistance R5 are connected with the base stage of the 3rd audion Q3, the colelctor electrode of the 3rd audion Q3 respectively with the 16th resistance R16, first
6th pin of the 6th pin of high frequency electronic switch U8 and the second high frequency electronic switch U3 connects.It is noted that this reality
Apply in example, the first audion Q1 is PNP type triode, the second audion Q2 is NPN type triode, the 3rd audion Q3 is NPN
Type audion.
In the present embodiment, when at T0R1 for high level, T1R0 at for low level when, the 4th of the first high frequency electronic switch U8 the
Pin and the second high frequency electronic switch U3 the 4th pin are also turned on, and at this moment switch to sending mode, for low electricity at T0R1
When at flat, T1R0 for high level, the 6th pin of the first high frequency electronic switch U8 and the second high frequency electronic switch U3 the 6th pin
It is also turned on, at this moment switch to reception pattern.The automatic switchover of sending mode and reception pattern thus can be realized.
As shown in figure 4, preposition low noise amplification unit 106 includes pre-low-noise amplifier U2, radio frequency matching circuit
1061 and the 19th electric capacity C19, pre-low-noise amplifier U2 are provided with six pins, and radio frequency matching circuit 1061 includes the 7th electricity
Hold C7, the 8th electric capacity C8, the 13rd electric capacity C13, the 14th electric capacity C14 and the 5th inductance L5, pre-low-noise amplifier U2's
3rd pin is connected with one end of the 7th electric capacity C7, one end of the 5th inductance L5 and one end of the 8th electric capacity C8 respectively, the 8th electricity
The other end holding C8 is connected with one end of the 13rd electric capacity C13 and one end of the 14th electric capacity C14 respectively, the 14th electric capacity C14
The other end be connected with first pin of the second high frequency electronic switch U3, the other end of the 7th electric capacity C7, the 5th inductance L5 another
The other end of one end and the 13rd electric capacity C13 is all grounded, and the 4th pin of pre-low-noise amplifier U2 passes through the 19th electric capacity
C19 is connected with first pin of the first high frequency electronic switch U8.
As shown in figure 5,5.8G power amplification unit 105 includes 5.8G power amplifier U5, the 16th electric capacity C16 and the 3rd
3rd pin of 12 electric capacity C32,5.8G power amplifier U5 passes through the 16th electric capacity C16's and the first high frequency electronic switch U8
3rd pin connects, and the 13rd pin of 5.8G power amplifier U5 is opened with the second high-frequency electronic by the 32nd electric capacity C32
The 3rd pin closing U3 connects.
As shown in Fig. 2 in the present embodiment, radio frequency matching network 111 include the 15th electric capacity C15, the 17th electric capacity C17,
18th electric capacity C18, the 27th electric capacity C27, the first inductance L1, the second inductance L2 and the 4th inductance L4, the first high-frequency electronic
Switch element 103 also includes the 48th electric capacity C48, the 4th pin of 5.8G radio transmitting and receiving chip U1 respectively with the 15th electric capacity
One end of one end of C15 and the first inductance L1 connects, and the other end of the 15th electric capacity C15 is connected with one end of the second inductance L2,
The other end of the second inductance L2 is connected with one end of the 48th electric capacity C48 and one end of the 17th electric capacity C17 respectively, and the 40th
The other end of eight electric capacity C48 is connected with the 5th pin of the first high frequency electronic switch 103, and the 3rd of 5.8G radio transmitting and receiving chip U1 the
Pin is connected with the other end of the first inductance L1, one end of the 18th electric capacity C18 and one end of the 4th inductance L4 respectively, and 5.8G is no
The second pin of line transceiving chip U1 respectively with the other end of the 4th inductance L4, one end of the 27th electric capacity C27 and the 4th electricity
One end of resistance R4 connects, the other end of the 17th electric capacity C17, the other end of the 18th electric capacity C18 and the 27th electric capacity C27's
The other end is all grounded.
As shown in figure 4, the second high frequency electronic switch unit 107 also includes the 21st electric capacity C21,5.8G band filter
One end of BF2 is connected with the 5th pin of the second high frequency electronic switch U3 by the 21st electric capacity C21.
As shown in fig. 6, this 5.8G remote-wireless data transmission system also includes the 7th inductance L7, antenna 108 includes
20 electric capacity C20 and multiple antenna terminal, the other end of 5.8G band filter BF2 passes sequentially through the 7th inductance L7 and the 20th
Electric capacity C20 and being connected with one of antenna terminal (third antenna terminal) of antenna 108.
As shown in fig. 7,5V voltage is dropped to 3.3V voltage by power-supplying circuit 109, and voltage stabilizing is in 3.3V voltage, its except
Outside power supply, also act as pressure stabilization function.
In a word, in the present embodiment, due to carrying out transmission or the reception of data using 5.8G wireless transmit/receive units 102, this
Sample just avoids conventional 2.4G frequency range, and comparatively 5.8G frequency range is a relatively cleaner frequency range, so its anti-interference is relatively
By force, data is not easy to lose.Meanwhile, the price of the 5.8G radio transmitting and receiving chip U1 in 5.8G wireless transmit/receive units 102 inexpensively,
Which reduce cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of 5.8G remote-wireless data transmission system is it is characterised in that include communication interface circuit, 5.8G wireless receiving and dispatching
Unit, the first high frequency electronic switch unit, pattern switching control unit, 5.8G power amplification unit, preposition low noise amplification list
Unit, the second high frequency electronic switch unit, antenna and power supply power supply unit, data flow is sent to institute by described communication interface circuit
State 5.8G wireless transmit/receive units, described data flow is modulated into and meets the data setting form by described 5.8G wireless transmit/receive units
Bag, produces pulse signal and sends it to described pattern switching control unit, described pattern switching control unit is according to described
Pulse signal controls described first high frequency electronic switch unit and the second high frequency electronic switch unit to be accordingly switched to sending mode
Or reception pattern, when being switched to described sending mode, described packet is passed through described the by described 5.8G wireless transmit/receive units
One high frequency electronic switch unit is sent to described 5.8G power amplification unit and carries out power amplification, described 5.8G power amplification unit
Signal after amplifying is sent to described antenna by described second high frequency electronic switch unit, described antenna is by after described amplification
Signal launch, when being switched to described reception pattern, described antenna receives 5.8G radiofrequency signal and is simultaneously passed through described
Second high frequency electronic switch unit is sent to described preposition low noise amplification unit, and described preposition low noise amplification unit is to described
After 5.8G radiofrequency signal carries out low level signal amplification, and the 5.8G radiofrequency signal after amplifying is passed through described first high frequency electronic switch
Unit is sent to described 5.8G wireless transmit/receive units, and described power supply power supply unit is respectively with described communications interface unit, 5.8G no
Line Transmit-Receive Unit, 5.8G power amplification unit and preposition low noise amplification unit connect and are used for powering.
2. 5.8G remote-wireless data transmission system according to claim 1 is it is characterised in that also include for filtering
The 5.8G band filter of interference signal, one end of described 5.8G band filter is with described second high frequency electronic switch unit even
Connect, the other end is connected with described antenna.
3. 5.8G remote-wireless data transmission system according to claim 1 and 2 is it is characterised in that described communication connects
Mouth circuit includes USB interface, serial ports and SPI interface, and described 5.8G wireless transmit/receive units include 5.8G radio transmitting and receiving chip, described
5.8G radio transmitting and receiving chip is provided with USB interface pin, serial ports pin and SPI interface pin, described USB interface pin with described
USB interface connects, and described serial ports pin is connected with described serial ports, and described SPI interface pin is connected with described SPI interface.
4. 5.8G remote-wireless data transmission system according to claim 3 is it is characterised in that described first high-frequency electrical
Sub- switch element includes the first high frequency electronic switch, and described second high frequency electronic switch unit includes the second high frequency electronic switch,
Described first high frequency electronic switch and the second high frequency electronic switch are equipped with six pins, and described pattern switching control unit includes
First audion, the second audion, the 3rd audion, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance
With the 16th resistance, one end of described 4th resistance is connected with the second pin of described 5.8G radio transmitting and receiving chip, and the described 4th
The other end of resistance is connected with the base stage of described second audion, and the colelctor electrode of described second audion is electric with described second respectively
Resistance, the 4th pin of the first high frequency electronic switch, the 4th pin of the second high frequency electronic switch and preposition low noise amplification unit
Connect, the colelctor electrode of described second audion is connected with the base stage of described first audion also by described 3rd resistor, described
The emitter stage of the first audion is connected with described first resistor, the colelctor electrode of described first audion and described 5.8G power amplification
Unit connects, and the colelctor electrode of described second audion is connected with the base stage of described 3rd audion also by described 5th resistance,
The colelctor electrode of described 3rd audion is high with described 16th resistance, the 6th pin of the first high frequency electronic switch and second respectively
6th pin of band electronic switch connects.
5. 5.8G remote-wireless data transmission system according to claim 4 is it is characterised in that described preposition low noise
Amplifying unit includes pre-low-noise amplifier, radio frequency matching circuit and the 19th electric capacity, and described pre-low-noise amplifier sets
There are six pins, described radio frequency matching circuit includes the 7th electric capacity, the 8th electric capacity, the 13rd electric capacity, the 14th electric capacity and the 5th
Inductance, the 3rd pin of described pre-low-noise amplifier respectively with one end of described 7th electric capacity, one end of the 5th inductance and
One end of 8th electric capacity connects, other end one end and the 14th electric capacity with described 13rd electric capacity respectively of described 8th electric capacity
One end connect, the other end of described 14th electric capacity is connected with the first pin of described second high frequency electronic switch, described the
The other end of the other end of seven electric capacity, the other end of the 5th inductance and the 13rd electric capacity is all grounded, described preposition low noise amplification
4th pin of device is connected with the first pin of described first high frequency electronic switch by described 19th electric capacity.
6. 5.8G remote-wireless data transmission system according to claim 5 is it is characterised in that described 5.8G power is put
Big unit includes 5.8G power amplifier, the 16th electric capacity and the 32nd electric capacity, and the 3rd of described 5.8G power amplifier draws
Foot is connected with the 3rd pin of described first high frequency electronic switch by described 16th electric capacity, described 5.8G power amplifier
13rd pin is connected with the 3rd pin of described second high frequency electronic switch by described 32nd electric capacity.
7. 5.8G remote-wireless data transmission system according to claim 6 is it is characterised in that described wireless data passes
Defeated system also includes radio frequency matching network, and described radio frequency matching network includes the 15th electric capacity, the 17th electric capacity, the 18th electricity
Appearance, the 27th electric capacity, the first inductance, the second inductance and the 4th inductance, described first high frequency electronic switch unit also includes
48 electric capacity, the 4th pin one end and first inductance with described 15th electric capacity respectively of described 5.8G radio transmitting and receiving chip
One end connect, the other end of described 15th electric capacity is connected with one end of described second inductance, described second inductance another
End is connected with described one end of 48th electric capacity and one end of the 17th electric capacity respectively, the other end of described 48th electric capacity
Be connected with the 5th pin of described first high frequency electronic switch, the 3rd pin of described 5.8G radio transmitting and receiving chip respectively with described
One end of the other end of the first inductance, one end of the 18th electric capacity and the 4th inductance connects, described 5.8G radio transmitting and receiving chip
Second pin is connected with one end of the other end, one end of the 27th electric capacity and described 4th resistance of described 4th inductance respectively
Connect, the other end of described 17th electric capacity, the other end of the 18th electric capacity and the other end of the 27th electric capacity are all grounded.
8. 5.8G remote-wireless data transmission system according to claim 3 is it is characterised in that described USB interface is drawn
The number of foot is two, and the number of described serial ports pin is two, and the number of described SPI interface pin is four.
9. 5.8G remote-wireless data transmission system according to claim 4 is it is characterised in that described second high-frequency electrical
Sub- switch element also includes the 21st electric capacity, and described 21st electric capacity and institute are passed through in one end of described 5.8G band filter
The 5th pin stating the second high frequency electronic switch connects.
10. 5.8G remote-wireless data transmission system according to claim 9 is it is characterised in that described wireless data
Transmission system also includes the 7th inductance, and described antenna includes the 20th electric capacity and multiple antenna terminal, described 5.8G bandpass filtering
The other end of device passes sequentially through described 7th inductance and the 20th electric capacity is connected with one of antenna terminal of described antenna.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/093771 WO2017075769A1 (en) | 2015-11-04 | 2015-11-04 | 5.8g long-distance wireless data transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106464289A true CN106464289A (en) | 2017-02-22 |
| CN106464289B CN106464289B (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580015900.6A Active CN106464289B (en) | 2015-11-04 | 2015-11-04 | 5.8G remote-wireless data transmission system |
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| Country | Link |
|---|---|
| CN (1) | CN106464289B (en) |
| WO (1) | WO2017075769A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN106464289B (en) | 2019-07-05 |
| WO2017075769A1 (en) | 2017-05-11 |
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