CN104301859B - The issue of closely information and reception system based on UWB - Google Patents
The issue of closely information and reception system based on UWB Download PDFInfo
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- CN104301859B CN104301859B CN201410530808.0A CN201410530808A CN104301859B CN 104301859 B CN104301859 B CN 104301859B CN 201410530808 A CN201410530808 A CN 201410530808A CN 104301859 B CN104301859 B CN 104301859B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/04—Position modulation, i.e. PPM
Abstract
The invention discloses a kind of closely information issue based on UWB and reception system,Including information sending module and information receiving module,Information sending module includes PC host computers,PPM modulation circuit,Pulse generating circuit,Square-wave signal source,Circuit and ultra wide band transmitting antenna occur for driving,The output end of PC host computers connects with the first input end of PPM modulation circuit,The input of pulse generating circuit connects with the output end of square-wave signal source,The output end of pulse generating circuit connects with the second input of PPM modulation circuit,The input that circuit occurs with driving for the output end of PPM modulation circuit connects,The output end that circuit occurs for driving connects with the input of ultra wide band transmitting antenna,Information receiving module includes ultra-wideband receiver antenna,PPM demodulator circuits and intelligent terminal,The output end of ultra-wideband receiver antenna connects with the input of PPM demodulator circuits,The output end of PPM demodulator circuits connects with the input of intelligent terminal；Advantage is abundant information, and scope of release is wide, and it is short to obtain the time.
Description
Technical field
The present invention relates to a kind of issue of information and reception technique, is sent out more particularly, to a kind of closely information based on UWB
Cloth and reception system.
Background technology
Existing closely information issuing system is popularized very much in our daily lifes.Such as railway station and subway station, to multiplying
To go to inquire about some information for visitor, typically by electronic display, go manual board consulting to obtain our inquisitive information.
Such as shop, the place such as hotel or restaurant, these local businessmans are typically led to publicize the commodity of oneself or preferential activity
Propagating poster of signposting is crossed, is distributed leaflets to inform the local consumer.Such as in certain region, government in order to issue some events,
General take TV, newspaper mode informs the masses in the region.Such as in museum, cultural sight spot etc., typically by guide's handle
The relevant knowledge in the place is explained listens to visitor.
These existing broadcast message published methods have some shortcomings：The Limited information that display screen is shown, worker, which seeks advice from, to be needed
It is lined up time-consuming, sends leaflet paper contamination, the papery for being distributed to passerby is limited so information scope of release is narrow, TV and newspaper
Not in time, artificial explanation requires high to the information of transmission to guide, and the knowledge of explanation is not necessarily comprehensive etc..
The content of the invention
The technical problems to be solved by the invention are to provide a kind of information content and enriched, pollution-free, and information scope of release is wide,
The time that information receiver obtains information is short, while the closely information based on UWB that can obtain information in real time is issued with connecing
Receipts system.
Technical scheme is used by this present invention solves above-mentioned technical problem：A kind of closely information hair based on UWB
Cloth and reception system, including information sending module and information receiving module, described information sending module include PC host computers,
Circuit and ultra wide band transmitting antenna occur for PPM modulation circuit, pulse generating circuit, square-wave signal source, driving, and described PPM is adjusted
Circuit processed has two signal input parts, the first input end that is respectively used to inputting information code and for inputting high-frequency impulse the
Two inputs, the output end of described PC host computers connect with the first input end of described PPM modulation circuit, described pulse
The input that circuit occurs connects with the output end of described square-wave signal source, the output end of described pulse generating circuit and institute
Circuit occurs for the second input connection for the PPM modulation circuit stated, the output end of described PPM modulation circuit and described driving
Input connection, the output end that circuit occurs for described driving connects with the input of described ultra wide band transmitting antenna, institute
The information receiving module stated includes ultra-wideband receiver antenna, PPM demodulator circuits and intelligent terminal, described ultra-wideband receiver antenna
Output end connected with the input of described PPM demodulator circuits, the output end and described intelligence of described PPM demodulator circuits
The input connection of terminal, is communicated wirelessly between described ultra wide band transmitting antenna and described ultra-wideband receiver antenna,
Communicated wirelessly between described ultra wide band transmitting antenna and described ultra-wideband receiver antenna, described PC host computers are by number
The information code of font formula is sent in described PPM modulation circuit, and the information code is converted to PPM by described PPM modulation circuit
Signal is sent to described driving and circuit occurs, and the ultra wide band transmitting antenna described in circuit drives occurs for described driving, described
Ultra wide band transmitting antenna PPM signal is sent, realize the issue of information；Described ultra-wideband receiver antenna and ultra wide band
Communicated wirelessly between transmitting antenna and obtain PPM signal and be sent to described PPM demodulator circuits, described PPM demodulation is electric
Intelligent terminal is sent into road after PPM signal is demodulated into the information code of PC host computers transmission, and people can obtain PC by intelligent terminal
The information content that host computer is sent, realizes the acquisition of information.
Described pulse generating circuit includes model LT1169CS8 the first operational amplifier, the first electric capacity, the second electricity
Appearance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, first resistor, second resistance, 3rd resistor,
Four resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first inductance, the first diode, second
Diode, the first triode and the second triode, one end ground connection of the first described electric capacity, the other end of the first described electric capacity
It is connected with one end of the second described electric capacity, the other end of the second described electric capacity is connected with one end of described first resistor,
The other end of described first resistor, one end of described second resistance, the negative electrode of the first described diode and described
The base stage connection of one triode, the anode of the first described diode, the emitter stage of the first described triode and described the
The 3rd pin connection of one operational amplifier, the other end of described second resistance, the colelctor electrode, described of the first described triode
The 8th pin of the first operational amplifier and the anode of the second described diode access 5V power supplys, the second described diode
Negative electrode, one end of the 3rd described electric capacity connected with one end of described 3rd resistor, the other end of described 3rd resistor,
One end of the 4th described electric capacity connects with one end of the 9th described resistance, the other end of the 4th described electric capacity, described
The other end of one end of 4th resistance and the 3rd described electric capacity is grounded, the other end of the 4th described resistance, described
1st pin of one operational amplifier connects with one end of the 5th described resistance, the other end of the 5th described resistance, described
2nd pin of one operational amplifier and the 4th pin of the first described operational amplifier are grounded, the 9th described resistance it is another
End, one end of the 5th described electric capacity connect with the colelctor electrode of the second described triode, one end of the first described inductance, institute
One end, the one end of the 6th described resistance for the 7th electric capacity stated connect with one end of the 6th described electric capacity, and described first
The other end of inductance be described pulse generating circuit input, the other end of the 7th described electric capacity, the described the 6th electricity
The other end of resistance, one end of the 7th described resistance, one end of the 8th described resistance and the other end of the 5th described electric capacity
Connection, the base stage of the other end of the 6th described electric capacity, the other end of the 7th described resistance and the second described triode connect
Connect, the emitter stage of the second described triode connects with the other end of the 8th described resistance and its public connecting end is described
The output end of pulse generating circuit；The pulse generating circuit is beneficial to avalanche transistor to produce pulse, can obtain steeper
Pulse edge, be easy to the realization of PPM modulation circuit.
Described PPM modulation circuit includes six phase inverters and model ADG719BRM selector, and described six anti-
Phase device is CMOS inverter, and described six phase inverters are respectively the first phase inverter, the second phase inverter, the 3rd phase inverter,
Four phase inverters, the 5th phase inverter and hex inverter, described selector have five inputs, respectively first input end,
Two inputs, the 3rd input, power input and ground input, the input of the first described phase inverter is described PPM
The first input end of modulation circuit, the output end of the first described phase inverter, the input of the second described phase inverter and described
The 3rd phase inverter input connection, the input of the output end of the 3rd described phase inverter and the 4th described phase inverter connects
Connect, the power input access 5V power supplys of described selector, the ground input end grounding of described selector, described second is anti-
The output end of phase device connects with the first input end of described selector, the output end of the 4th described phase inverter and described choosing
The second input connection of device is selected, the 3rd input of described selector is the second input of described PPM modulation circuit,
The output end of described selector connects with the input of the 5th described phase inverter, the output end of the 5th described phase inverter and
The input connection of described hex inverter, the output end of described hex inverter is the defeated of described PPM modulation circuit
Go out end；The PPM modulation circuit realizes its PPM modulation function using common CMOS inverter, and circuit structure is simple, and circuit work(
Consumption is smaller.
Described driving occur circuit include the tenth resistance, the 11st resistance, the first FET, the second FET,
3rd FET, the 4th FET, the 5th FET and the 6th FET, the grid of the second described FET
Connected with the grid of the 3rd described FET and its public connecting end is the described input for driving generation circuit, it is described
The drain electrode of the second FET be connected with the source electrode of the first described FET, the grid of the first described FET with
One end connection of the tenth described resistance, it is the other end of the tenth described resistance, one end of the 11st described resistance, described
The drain electrode of first FET and the drain electrode of described the 5th FET access 5V power supplys, the 11st described resistance it is another
One end is connected with the grid of the 4th described FET, the source ground of the 4th described FET, described second
The source electrode of effect pipe, the draining of the 3rd described FET, the grid of the 5th described FET and the described the 6th
The grid connection of effect pipe, the source electrode of the 5th described FET is connected with the drain electrode of the 6th described FET and it is public
Connection end is total to as the described output end for driving generation circuit, the source ground of the 6th described FET, the described the 3rd
The drain electrode of the source electrode of FET and the 4th described FET connects；The driving is occurred circuit and realized using FET,
Because FET has, noise is small, low in energy consumption, is easily integrated, and does not have secondary-breakdown phenomenon, therefore drives and occur needed for circuit
The driving power wanted is small, easily makes circuit miniaturization.
Described PPM demodulator circuits include transformation coil, the 3rd diode, the 4th diode, the second inductance, the 8th electricity
Appearance, the 9th electric capacity, the tenth electric capacity, the 11st electric capacity, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th resistance,
16th resistance, the 17th resistance, the 18th resistance, model TL054AMN the second operational amplifier and model TL054AID
The 3rd operational amplifier, the primary in-phase end of described transformation coil is the input of described PPM demodulator circuits, described
The secondary in-phase end of transformation coil connected with the negative electrode of the 3rd described diode, the secondary end of oppisite phase of described transformation coil
Connected with the negative electrode of the 4th described diode, the described anode of the 3rd diode, the anode of the 4th described diode, institute
Second inductance one end, the one end of the 8th described electric capacity stated connect with one end of the 9th described electric capacity, the described the 9th electricity
The other end of appearance connects with one end of the 12nd described resistance, the other end of the 12nd described resistance, the described the tenth electricity
One end of appearance, one end of the 13rd described resistance connect with one end of the 14th described resistance, the 13rd described resistance
The other end, described one end of the 11st electric capacity, the 1st pin of the second described operational amplifier, the 16th described resistance
One end connected with one end of the 17th described resistance, the other end, the 11st described electric capacity of the 14th described resistance
The other end connected with the 3rd pin of the second described operational amplifier, the primary end of oppisite phase of described transformation coil, described
The other end of two inductance, the other end of the 8th described electric capacity, the other end of the tenth described electric capacity and the described the 15th electricity
One end connection of resistance, the other end of the 15th described resistance, the 2nd pin of the second described operational amplifier, described second
11st pin of operational amplifier and the other end of the 16th described resistance are grounded, and the 4th of the second described operational amplifier the
Pin accesses 5V power supplys, the other end of the 17th described resistance, one end of the 18th described resistance and the 3rd described computing
Amplifier the 2nd pin connection, the other end of the 18th described resistance connected with the 1st pin of the 3rd described operational amplifier and
Its public connecting end is the output end of described PPM demodulator circuits, the 11st pin of the 3rd described operational amplifier and described
3rd pin of the 3rd operational amplifier accesses 5V power supplys, the 4th pin ground connection of the 3rd described operational amplifier.The circuit has
The advantages of：This PPM demodulator circuits realize the demodulation of PPM signal using square detecting way, and the front end of traditional receivers has
One bandpass filter, carry out the entrance of the outer interference signal of preventing belt and noise, so as to improve signal to noise ratio.But the frequency of PPM signal
Band is wider, many noises and other narrow-band interference signals in this frequency band be present, adds band logical to filter using demodulation front end
The method of ripple device is come to improve the signal to noise ratio effect of reception signal be not too obvious；PPM signal that the PPM demodulator circuits receive with
Traditional narrow band signal is different, and it is to go up signal discontinuous, that pulse width is relatively very narrow, PPM demodulator circuits a time
It is demodulated using square detecting way when signal arrives, at other times inner shield noise and extraneous interference signal, can
To improve the signal to noise ratio of PPM demodulator circuits, reduce the bit error rate.
Compared with prior art, the advantage of the invention is that the digital information that PC host computers are sent is entered through PPM modulation circuit
Row modulation, be converted to PPM signal and be sent to driving generation circuit, circuit drives ultra wide band transmitting antenna, ultra wide band occur for driving
Transmitting antenna sends PPM signal, realizes the issue of information；Enter between ultra-wideband receiver antenna and ultra wide band transmitting antenna
The PPM signal received is sent to PPM demodulator circuits by row wireless telecommunications, ultra-wideband receiver antenna, and PPM demodulator circuits are by PPM
Signal is sent into intelligent terminal after being demodulated into the digital information of PC host computers transmission, and people can obtain PC host computers by intelligent terminal
The information content of transmission, realize the acquisition of information；In information issuing process, the digital information that PC host computers are sent is with numeral
Signal form is sent, and information can be stored and transmitted with coding compression, and the information content thus sent can be very abundant, can
To be text message, voice messaging and pictorial information or video information and in the issue of information and the reception of information
Between use UWB (Ultra Wideband, no-load communication techniques), realize near radio high speed transmit so that people
Obtain the speed of information quickly, people only need hand-held intelligent terminal (information receiving system, such as smart mobile phone) to pass through net
Network obtains required information in real time at a terrific speed from information issue and reception system；Information is all electronic signal, therefore not
Paper contamination be present；Information issue use be similar to wireless broadcast information issue by the way of, existing intelligent terminal
(smart mobile phone) can obtain information by wireless network, and information scope of release is wide, and is entered using intelligent terminals such as smart mobile phones
The reception of row information, various operations can be carried out to the information of reception, can delete, replicate forwarding, can also believed according to receiving
Breath by infinite network gives information publisher one feedback information, is seeked advice from, the business operation such as reservation, practicality and operable
Property is strong.
Brief description of the drawings
Fig. 1 is the theory diagram of information sending module；
Fig. 2 is the theory diagram of information receiving module；
Fig. 3 is the circuit diagram of pulse generating circuit；
Fig. 4 is the circuit diagram of PPM modulation circuit；
Fig. 5 is the circuit diagram that circuit occurs for driving；
Fig. 6 is the circuit of PPM demodulator circuits.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment：As depicted in figs. 1 and 2, a kind of issue of closely information and reception system based on UWB, including information
Sending module and information receiving module, information sending module include PC host computers, PPM modulation circuit, pulse generating circuit, driving
Generation circuit and ultra wide band transmitting antenna, PPM modulation circuit have two signal input parts, are respectively used to inputting the of information code
One input and the second input for inputting high-frequency impulse, the output end of PC host computers and the first of PPM modulation circuit defeated
Enter end connection, the output end of pulse generating circuit connects with the second input of PPM modulation circuit, the output of PPM modulation circuit
The input that circuit occurs with driving is held to connect, the output end of circuit occurs for driving and the input of ultra wide band transmitting antenna connects
Connect, information receiving module includes ultra-wideband receiver antenna, PPM demodulator circuits and intelligent terminal, the output of ultra-wideband receiver antenna
End connects with the input of PPM demodulator circuits, and the output end of PPM demodulator circuits connects with the input of intelligent terminal, ultra wide band
Communicated wirelessly between transmitting antenna and ultra-wideband receiver antenna, PC host computers can use computer, and intelligent terminal can be
Smart mobile phone, tablet personal computer etc..
The present embodiment, as shown in figure 3, pulse generating circuit includes model LT1169CS8 the first operational amplifier
U1A, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electricity
Hold C7, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th electricity
Hinder R7, the 8th resistance R8, the 9th resistance R9, the first inductance L1, the first diode D1, the second diode D2, the first triode Q1
It is grounded with the second triode Q2, the first electric capacity C1 one end, the first electric capacity C1 other end is connected with the second electric capacity C2 one end,
The second electric capacity C2 other end is connected with first resistor R1 one end, the first resistor R1 other end, second resistance R2 one end,
First diode D1 negative electrode and the first triode Q1 base stage connects, the first diode D1 anode, the first triode Q1
Emitter stage and the first operational amplifier U1A the 3rd pin connect, the second resistance R2 other end, the first triode Q1 colelctor electrode,
First operational amplifier U1A the 8th pin and the second diode D2 anode access 5V power supplys, the second diode D2 negative electrode,
3rd electric capacity C3 one end connects with 3rd resistor R3 one end, the 3rd resistor R3 other end, the 4th electric capacity C4 one end and
9th resistance R9 one end connection, the 4th electric capacity the C4 other end, the 4th resistance R4 one end and the 3rd electric capacity C3 other end
It is grounded, one end connection of the 4th resistance R4 other end, the first operational amplifier U1A the 1st pin and the 5th resistance R5, the 5th
4th pin of the resistance R5 other end, the 2nd pin of the first operational amplifier and the first operational amplifier U1A is grounded, the 9th resistance
The R9 other end, the 5th electric capacity C5 one end connect with the second triode Q2 colelctor electrode, the first inductance L1 one end, the 7th electricity
One end, the 6th resistance R6 one end for holding C7 connect with the 6th electric capacity C6 one end, and the first inductance L1 other end is sent out for pulse
The input of raw circuit, the 7th electric capacity C7 other end, the 6th resistance R6 other end, the 7th resistance R7 one end, the 8th electricity
Resistance R8 one end connects with the 5th electric capacity C5 other end, the 6th electric capacity C6 other end, the 7th resistance R7 other end and the
Two triode Q2 base stage connection, the second triode Q2 emitter stage and the 8th resistance R8 other end connection and its is commonly connected
Hold as the output end of described pulse generating circuit.
The present embodiment, as shown in figure 4, PPM modulation circuit includes six phase inverters and model ADG719BRM selector
S1, six phase inverters are CMOS inverter, and six phase inverters are respectively the first phase inverter U2A, the second phase inverter U2B, the 3rd
Phase inverter U2C, the 4th phase inverter U2D, the 5th phase inverter U2E and hex inverter U2F, selector have five inputs, respectively
For first input end, the second input, the 3rd input, power input and ground input, the first phase inverter U2A input
It is anti-for the first input end of PPM modulation circuit, the first phase inverter U2A output end, the second phase inverter U2B input and the 3rd
Phase device U2C input connection, the 3rd phase inverter U2C output end are connected with the 4th phase inverter U2D input, selector S1
Power input access 5V power supplys, selector S1 ground input end grounding, the second phase inverter U2B output end and selector S1
First input end connection, the 4th phase inverter U2D output end connects with selector S1 the second input, the of selector S1
Three inputs are the input company of the second input of PPM modulation circuit, selector S1 output end and the 5th phase inverter U2E
Connect, the 5th phase inverter U2E output end connects with hex inverter U2F input, and hex inverter U2F output end is
The output end of PPM modulation circuit.
The present embodiment, as shown in figure 5, circuit, which occurs, for driving includes the tenth resistance R10, the 11st resistance R11, first effect
Should pipe Q3, the second FET Q4, the 3rd FET Q5, the 4th FET Q6, the 5th FET Q7 and the 6th effect
Should pipe Q8, the second FET Q4 grid and the 3rd FET Q5 grid connection and its public connecting end be driving
The input of circuit, the second FET Q4 drain electrode are connected with the first FET Q3 source electrode, the first FET Q3's
Grid is connected with the tenth resistance R10 one end, the tenth resistance R10 other end, the 11st resistance R11 one end, first effect
Should pipe Q3 drain electrode and the 5th FET Q7 drain electrode access 5V power supplys, the 11st resistance R11 other end and the 4th
Effect pipe Q6 grid connection, the 4th FET Q6 source ground, the second FET Q4 source electrode, the 3rd FET
The grid connection of Q5 drain electrode, the 5th FET Q7 grid and the 6th FET Q8, the 5th FET Q7 source electrode
The output end of circuit, the 6th FET Q8 occur for driving for drain electrode connection and its public connecting end with the 6th FET Q8
Source ground, the drain electrode connection of the source electrode of the 3rd FET and the 4th FET.
The present embodiment, as shown in fig. 6, PPM demodulator circuits include transformation coil T1, the 3rd diode D3, the 4th diode
D4, the second inductance L2, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the 11st electric capacity C11, the 12nd resistance R12,
13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 17th resistance R17, the 18th
Resistance R18, model TL054AMN the second operational amplifier U2A and model TL054AID the 3rd operational amplifier U3A, become
The primary in-phase end of line ball circle be PPM demodulator circuits input, transformation coil T1 secondary in-phase end and the 3rd diode
D3 negative electrode connection, the negative electrode connection of transformation coil T1 secondary end of oppisite phase and the 4th diode D4, the 3rd diode D3 sun
Pole, the 4th diode D4 anode, second inductance L2 one end, the 8th electric capacity C8 one end connect with the 9th electric capacity C9 one end,
One end connection of 9th electric capacity the C9 other end and the 12nd resistance R12, the 12nd resistance the R12 other end, the tenth electric capacity C10
One end, the 13rd resistance R13 one end connected with the 14th resistance R14 one end, the 13rd resistance R13 other end,
11 electric capacity C11 one end, the second operational amplifier U2A the 1st pin, the 16th resistance R16 one end and the 17th resistance R17
One end connection, the 14th resistance R14 other end, the of the 11st electric capacity C11 other end and the second operational amplifier U2A
3 pin connect, transformation coil T1 primary end of oppisite phase, the second inductance L2 other end, the 8th electric capacity the C8 other end, the tenth electric capacity
The C10 other end and the 15th resistance R15 one end connect, the 15th resistance the R15 other end, the second operational amplifier U2A
The 2nd pin, the 11st pin of the second operational amplifier and the 16th resistance R16 other end be grounded, the second operational amplifier
4th pin accesses power supply, the 17th resistance R17 other end, the 18th resistance R18 one end and the 3rd operational amplifier U3A
2nd pin connects, and the 18th resistance R18 other end and the 3rd operational amplifier U3A the 1st pin connection and its public connecting end are
The output end of PPM demodulator circuits, the 3rd operational amplifier U3A the 11st pin and the 3rd pin of the 3rd operational amplifier access 5V
Power supply, the 3rd operational amplifier U3A the 4th pin ground connection.
The present invention operation principle be：The digital information that PC host computers are sent is modulated through PPM modulation circuit, is converted to
PPM signal is sent to driving and circuit occurs, and circuit drives ultra wide band transmitting antenna occurs for driving, and ultra wide band transmitting antenna is by PPM
Signal is sent, and realizes the issue of information；Communicate wirelessly, surpass between ultra-wideband receiver antenna and ultra wide band transmitting antenna
The PPM signal received is sent to PPM demodulator circuits by broad-band reception antenna, and PPM signal is demodulated on PC by PPM demodulator circuits
Intelligent terminal is sent into after the digital information that position machine is sent, people can be obtained by intelligent terminal in the information that PC host computers are sent
Hold, realize the acquisition of information；PPM modulation circuit uses pulse position modulation, and its principle is to control pulse train with modulated signal
In each pulse relative position (i.e. phase), the relative position of each pulse is changed with modulated signal, thus pulse train middle arteries
The amplitude and width of punching keep constant, ensure the accuracy of signal.
In the present invention, ultra wide band transmitting antenna realizes number with ultra-wideband receiver antenna by the short distance wireless communication technology
According to transmission.Existing the short distance wireless communication technology typically has：Infrared technique, Bluetooth technology, 802.11b and micropower are wireless
Technology etc..But these technologies are difficult to meet high speed data transfer requirement, and ultra wideband transmissions technology in the present invention (UWB,
Ultra-wideband closely message transmission rate) may be up to 500Mb/s, and the quick issue for realizing closely information is with connecing
Receive.The UWB that the present invention uses and the performance comparison of existing wireless communication technology are as shown in table 1 below.
Table 1：The performance table of comparisons
Analytical table 1 understands that the UWB used in the present invention is well suited for passing with the data in reception system for information issue
It is defeated.UWB communications unlike conventional baseband information it is carrier-modulated after transmit again, it is but directly that base-band information is extremely short with time interval
The pulse mode of (being less than 1ns) is communicated, and realizes the quick transmission of information.
Claims (5)
1. a kind of issue of closely information and reception system based on UWB, it is characterised in that including information sending module and information
Receiving module, described information sending module include PC host computers, PPM modulation circuit, pulse generating circuit, square-wave signal source,
Circuit and ultra wide band transmitting antenna, described PPM modulation circuit, which occur, for driving two signal input parts, is respectively used to input
The first input end of information code and the second input for inputting high-frequency impulse, the output end of described PC host computers and described
PPM modulation circuit first input end connection, the input of described pulse generating circuit and described square-wave signal source
Output end connects, and the output end of described pulse generating circuit connects with the second input of described PPM modulation circuit, described
The output end of PPM modulation circuit connect with the input that circuit occurs for described driving, described driving generation circuit it is defeated
Go out end connected with the input of described ultra wide band transmitting antenna, described information receiving module including ultra-wideband receiver antenna,
The input of PPM demodulator circuits and intelligent terminal, the output end of described ultra-wideband receiver antenna and described PPM demodulator circuits
Connection, the output end of described PPM demodulator circuits connect with the input of described intelligent terminal, described ultra wide band transmitting day
Communicated wirelessly between line and described ultra-wideband receiver antenna, described PC host computers send the information code of digital form
Into described PPM modulation circuit, the information code is converted to PPM signal and is sent to described drive by described PPM modulation circuit
Dynamic that circuit occurs, the ultra wide band transmitting antenna described in circuit drives occurs for described driving, and described ultra wide band transmitting antenna will
PPM signal is sent, and realizes the issue of information；Nothing is carried out between described ultra-wideband receiver antenna and ultra wide band transmitting antenna
Line communication obtains PPM signal and is sent to described PPM demodulator circuits, and PPM signal is demodulated into PC by described PPM demodulator circuits
Intelligent terminal is sent into after the information code that host computer is sent, people can be obtained by intelligent terminal in the information that PC host computers are sent
Hold, realize the acquisition of information.
2. the issue of closely information and reception system according to claim 1 based on UWB, it is characterised in that described arteries and veins
First operational amplifier of the circuit including model LT1169CS8, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th occur for punching
Electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance,
6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first inductance, the first diode, the second diode, the first triode
With the second triode, one end of the first described electric capacity is grounded, the other end of the first described electric capacity and the second described electric capacity
One end connection, the other end of the second described electric capacity is connected with one end of described first resistor, described first resistor
The other end, one end of described second resistance, the base stage of the negative electrode of the first described diode and the first described triode connect
Connect, the anode of the first described diode, the 3rd of the emitter stage of the first described triode and the first described operational amplifier the
Pin connects, the other end of described second resistance, the colelctor electrode of the first described triode, the first described operational amplifier
The anode of 8th pin and the second described diode accesses 5V power supplys, the negative electrode of the second described diode, the described the 3rd electricity
One end of appearance connects with one end of described 3rd resistor, the other end of described 3rd resistor, the one of the 4th described electric capacity
End connects with one end of the 9th described resistance, the other end of the 4th described electric capacity, one end of the 4th described resistance and institute
The other end for the 3rd electric capacity stated is grounded, the other end, the 1st pin of the first described operational amplifier of the 4th described resistance
Connected with one end of the 5th described resistance, the other end, the 2nd pin of the first described operational amplifier of the 5th described resistance
It is grounded with the 4th pin of the first described operational amplifier, the other end of the 9th described resistance, the one of the 5th described electric capacity
End connects with the colelctor electrode of the second described triode, one end of the first described inductance, one end of the 7th described electric capacity, institute
The one end for the 6th resistance stated connects with one end of the 6th described electric capacity, and the other end of the first described inductance is described arteries and veins
The input of circuit, the other end of the 7th described electric capacity, the other end of the 6th described resistance, the described the 7th electricity occur for punching
One end of resistance, one end of the 8th described resistance connect with the other end of the 5th described electric capacity, the 6th described electric capacity it is another
One end, the other end of the 7th described resistance connect with the base stage of the second described triode, the hair of the second described triode
Emitter-base bandgap grading connects with the other end of the 8th described resistance and its public connecting end is the output end of described pulse generating circuit.
3. the issue of closely information and reception system according to claim 1 based on UWB, it is characterised in that described
PPM modulation circuit includes six phase inverters and model ADG719BRM selector, and described six phase inverters are CMOS anti-
Phase device, described six phase inverters are respectively the first phase inverter, the second phase inverter, the 3rd phase inverter, the 4th phase inverter, the 5th anti-
Phase device and hex inverter, described selector have five inputs, respectively first input end, the second input, the 3rd defeated
Enter end, power input and ground input, the input of the first described phase inverter is first defeated for described PPM modulation circuit
Enter end, the output end of the first described phase inverter, the input of the second described phase inverter and the 3rd described phase inverter it is defeated
Enter end connection, the output end of the 3rd described phase inverter is connected with the input of the 4th described phase inverter, described selector
Power input access 5V power supplys, the ground input end grounding of described selector, the output end of the second described phase inverter and
The first input end connection of described selector, the output end of the 4th described phase inverter and the second input of described selector
End connection, the 3rd input of described selector are the second input of described PPM modulation circuit, described selector
Output end connects with the input of the 5th described phase inverter, the output end of the 5th described phase inverter and the described the 6th anti-phase
The input connection of device, the output end of described hex inverter are the output end of described PPM modulation circuit.
4. the issue of closely information and reception system according to claim 1 based on UWB, it is characterised in that described drive
The dynamic circuit that occurs includes the tenth resistance, the 11st resistance, the first FET, the second FET, the 3rd FET, the 4th
FET, the 5th FET and the 6th FET, the grid of the second described FET and the described the 3rd effect
Should pipe grid connection and its public connecting end the input of circuit occurs for described driving, the second described FET
Drain electrode is connected with the source electrode of the first described FET, the grid of the first described FET and the tenth described resistance
One end connects, the leakage of the other end of the tenth described resistance, one end, the first described FET of the 11st described resistance
The drain electrode of pole and the 5th described FET accesses 5V power supplys, the other end of the 11st described resistance and the described the 4th
The grid connection of FET, the source ground of the 4th described FET are the source electrode of the second described FET, described
The draining of the 3rd FET, the grid of the 5th described FET connects with the grid of the 6th described FET,
Drain electrode connection and its public connecting end of the source electrode of the 5th described FET with the 6th described FET are described
Driving occur circuit output end, the source ground of the 6th described FET, the source electrode of the 3rd described FET and
The drain electrode connection of the 4th described FET.
5. the issue of closely information and reception system according to claim 1 based on UWB, it is characterised in that described
PPM demodulator circuits include transformation coil, the 3rd diode, the 4th diode, the second inductance, the 8th electric capacity, the 9th electric capacity, the tenth
Electric capacity, the 11st electric capacity, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th
Resistance, the 18th resistance, model TL054AMN the second operational amplifier and model TL054AID the 3rd operational amplifier,
The primary in-phase end of described transformation coil be described PPM demodulator circuits input, the secondary of described transformation coil
In-phase end connects with the negative electrode of the 3rd described diode, the secondary end of oppisite phase of described transformation coil and the four or two described pole
The negative electrode connection of pipe, the anode of the 3rd described diode, the anode of the 4th described diode, the second described inductance one
End, one end of the 8th described electric capacity connect with one end of the 9th described electric capacity, the other end of the 9th described electric capacity and institute
One end connection for the 12nd resistance stated, it is the other end of the 12nd described resistance, one end of the tenth described electric capacity, described
One end of 13rd resistance connects with one end of the 14th described resistance, the other end of the 13rd described resistance, described
One end of 11st electric capacity, the 1st pin of the second described operational amplifier, one end of the 16th described resistance and described
One end connection of 17 resistance, the other end of the 14th described resistance, the other end of the 11st described electric capacity and described
Second operational amplifier the 3rd pin connection, the primary end of oppisite phase of described transformation coil, the second described inductance the other end,
The other end, the other end of the tenth described electric capacity of the 8th described electric capacity connect with one end of the 15th described resistance, institute
The other end for the 15th resistance stated, the 2nd pin of the second described operational amplifier, the 11st of the second described operational amplifier the
The other end of pin and the 16th described resistance is grounded, the 4th pin access 5V power supplys of the second described operational amplifier, described
The other end of the 17th resistance, one end of the 18th described resistance connected with the 2nd pin of the 3rd described operational amplifier,
The other end of the 18th described resistance is connected with the 1st pin of the 3rd described operational amplifier and its public connecting end is described
PPM demodulator circuits output end, the 11st pin of the 3rd described operational amplifier and the 3rd of the 3rd described operational amplifier the
Pin accesses 5V power supplys, the 4th pin ground connection of the 3rd described operational amplifier.
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| CN201410530808.0A CN104301859B (en) | 2014-10-10 | 2014-10-10 | The issue of closely information and reception system based on UWB |
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| CN201410530808.0A CN104301859B (en) | 2014-10-10 | 2014-10-10 | The issue of closely information and reception system based on UWB |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151635A (en) * | 1995-09-29 | 1997-06-11 | 夏普公司 | PPM demodulation device |
| CN1809971A (en) * | 2003-05-30 | 2006-07-26 | 脉冲互联有限公司 | Ultra-wideband communication system and method |
| CN101281052A (en) * | 2007-04-02 | 2008-10-08 | 周建明 | High precision low-power consumption radar liquid level instrument system |
| CN101490990A (en) * | 2006-07-24 | 2009-07-22 | 松下电器产业株式会社 | Pulse transmitting device, pulse receiving device, pulse communication system, and pulse communicatio method |
| WO2012149869A1 (en) * | 2011-05-03 | 2012-11-08 | 国民技术股份有限公司 | Communication method, communication device and communication system |
-
2014
- 2014-10-10 CN CN201410530808.0A patent/CN104301859B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151635A (en) * | 1995-09-29 | 1997-06-11 | 夏普公司 | PPM demodulation device |
| CN1809971A (en) * | 2003-05-30 | 2006-07-26 | 脉冲互联有限公司 | Ultra-wideband communication system and method |
| CN101490990A (en) * | 2006-07-24 | 2009-07-22 | 松下电器产业株式会社 | Pulse transmitting device, pulse receiving device, pulse communication system, and pulse communicatio method |
| CN101281052A (en) * | 2007-04-02 | 2008-10-08 | 周建明 | High precision low-power consumption radar liquid level instrument system |
| WO2012149869A1 (en) * | 2011-05-03 | 2012-11-08 | 国民技术股份有限公司 | Communication method, communication device and communication system |
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| CN104301859A (en) | 2015-01-21 |
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