CN107800785A - It is a kind of with adaptation function, the arrowband Internet of Things module having a wide range of application - Google Patents
It is a kind of with adaptation function, the arrowband Internet of Things module having a wide range of application Download PDFInfo
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- CN107800785A CN107800785A CN201710979802.5A CN201710979802A CN107800785A CN 107800785 A CN107800785 A CN 107800785A CN 201710979802 A CN201710979802 A CN 201710979802A CN 107800785 A CN107800785 A CN 107800785A
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- 230000006978 adaptation Effects 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a kind of to be included with adaptation function, the arrowband Internet of Things module having a wide range of application：Main control unit, TX impedance matching units, RX impedance matching units, automatic gain control unit, high-gain amplifier, logic control switch and antenna matching unit；Main control unit is connected with high-gain amplifier and logic control switch respectively by TX impedance matching units, main control unit is connected with automatic gain control unit, high-gain amplifier and logic control switch successively, and antenna matching unit is connected with logic control switch, RX impedance matching units, main control unit successively；In short-distance transmission, the transmission power of main control unit is launched by TX impedance matching units, logic control switch, antenna matching unit, realizes efficient transmission；In long-distance transmissions, the transmission power of main control unit is handled and transmitted by automatic gain control unit, high-gain amplifier, logic control switch and antenna matching unit, realizes high power transmission.
Description
Technical field
The present invention relates to arrowband Internet of Things field, more particularly to a kind of with adaptation function, the arrowband having a wide range of application
Internet of Things module.
Background technology
It is mutual that all things on earth is turned into based on cellular arrowband Internet of Things (Narrow Band Internet of Things, NB-IoT)
One important branch of networking network.NB-IoT is implemented in cellular network, can be deployed directly into GSM network, UMTS network or LTE nets
Network, to reduce lower deployment cost, realize smooth upgrade.Due to the broad mass market that new technology is brought eventually, related end product Fang Xing
Emerging in large numbers as not ending.NB-IoT technologies have penetrated into intelligent metering, property monitoring, agricultural, fleet and logistics since birth
The every aspect of the Internet of Things such as management.Because application scenarios and environmental condition are far from each other, preceding institute is brought not to NB-IoT products
Some challenges.
At this stage, NB-IOT device ends are applied to the Fang Fang of the social life such as smart city, outdoor measurement, logistics management
Face face.But because application scenarios are different, the requirement of NB-IOT device ends also differs.It is whole such as intelligent logistics system in city
Communication distance between end requires that anti-electromagnetic interference capability is very strong without too remote；New MTC (communication of machine kenel), can be used for
Forest, agricultural metering, but they are typically mounted on the remote districts even blind area of signal covering, existing short haul connection net
Network and mobile cellular network are all difficult to cover these regions, very high to the long-distance transmissions Capability Requirement of terminal device.It is and current
In the market majority NB-IOT equipment can only be developed and used for specific application scenarios, construction cycle length, application
Narrow, portable poor, the problems such as product cost is high, is difficult to solve.
The content of the invention
The purpose of the present invention is to overcome weak point of the prior art, there is provided a kind of band adaptation function, application
Wide arrowband Internet of Things module.
The purpose of the present invention is achieved through the following technical solutions：
It is a kind of with adaptation function, the arrowband Internet of Things module having a wide range of application, including：Main control unit, TX impedance matchings
Unit, RX impedance matching units, automatic gain control unit, high-gain amplifier, logic control switch and antenna matching unit；
The main control unit by the TX impedance matching units respectively with the high-gain amplifier and the logic control
System switch connection, the main control unit successively with the automatic gain control unit, the high-gain amplifier and the logic
Controlling switch connect, the antenna matching unit successively with the logic control switch, the RX impedance matching units, the master
Control unit connection；
In short-distance transmission, the transmission power of main control unit passes through TX impedance matching units, logic control switch, antenna
Matching unit is launched, and realizes efficient transmission；In long-distance transmissions, the transmission power of main control unit by increasing automatically
Beneficial control unit, high-gain amplifier, logic control switch and antenna matching unit are handled and transmitted, and realize high-power biography
It is defeated.
As further preferred scheme, the main control unit includes processor, LAN, signal detector and comparator, institute
LAN is stated to be connected with the processor through the signal detector, the comparator successively, the LAN also with the RX impedances
Connected with unit, the processor is connected with the TX impedance matching units and the automatic gain control unit respectively.
As further preferred scheme, the antenna matching unit is also associated with antenna.
As further preferred scheme, the TX impedance matching units include first resistor R1, second resistance R2, first
Electric capacity C1, the second electric capacity C2 and TX wave filter；
One end of the first resistor R1 is connected with the high-gain amplifier and the first electric capacity C1 respectively, the other end
It is connected with 1 pin of the TX wave filters, the other end ground connection of the first electric capacity C1；
The one end of 3 pin of the TX wave filters respectively with the second electric capacity C2 and the second resistance R2 is connected, described
Second electric capacity C2 other end ground connection, the other end of the second resistance R2 are connected with the logic control element.
As further preferred scheme, the RX impedance matching units include the 3rd electric capacity C3, the 4th electric capacity C4, the 3rd
Resistance R3 and RX wave filter；
1 pin of the RX wave filters is connected after the 3rd resistor R3 with the logic control switch, the 3rd electricity
Resistance R3 one end is grounded after the 3rd electric capacity C3, and the other end is grounded after the 4th electric capacity C4.
As further preferred scheme, the high-gain amplifier includes the 5th electric capacity C5, the 6th electric capacity C6, the 7th electricity
Hold C7, the 8th electric capacity C8, the 9th electric capacity C9 and amplifier U9；
One end ground connection of the 5th electric capacity C5, the other end is grounded after the 6th electric capacity C6, the 7th electric capacity C7, described
2 pin of the 6th electric capacity C6 also with the amplifier U9 are connected, 9 pin of the amplifier U9 respectively with the 8th electric capacity C8 and
Nine electric capacity C9 one end connection, the other end ground connection of the 8th electric capacity C8, the other end and the TX of the 9th electric capacity C9
Impedance matching unit connects.
As further preferred scheme, the logic control switch includes controlling switch U8, the tenth electric capacity C10 and first
Inductance L1；
9 pin of the controlling switch U8 are grounded after the first inductance L1, the tenth electric capacity C10.
As further preferred scheme, the automatic gain control unit includes gain controller U2, the tenth resistance
R10, the 11st electric capacity C11, the 12nd electric capacity C12 and the second inductance L2；
The VIN pin of the gain controller U2 are connected with the main control unit, and VIN pin are through the 12nd electric capacity C12
Ground connection, is also grounded after the tenth resistance R10, the 11st electric capacity C11；Described in the SW pin warp of the gain controller U2
Second inductance is connected with the 11st electric capacity C11.
The present invention compared to prior art the advantages of and have the beneficial effect that：
1st, the present invention is a kind of with adaptation function, the arrowband Internet of Things module having a wide range of application, its transmission signal intensity
Strong and weak with depending on quality by the level being an actually-received, in city during short-distance transmission, product transmission power is directly hindered by TX
Anti- matching unit and antenna matching unit are launched, and can both ensure signal quality, and can enough effectively reduces current supply loss；And
And work, out of doors or even under the scene of remote mountain areas, the transmitting terminal of antenna need to be handled and transmitted by high-gain amplifier,
It is able to ensure that equipment and the normal of base station are connected and communicate with.
2nd, the present invention is by provided with high-gain amplifier, logic control switch, impedance matching unit and main control unit
Signal detector, comparator etc., signal is passed through net mate, ensure accurate undistorted transmission to back-end processor and dock
Receive automatic signal detection to judge, to confirm the selection of logic control switch and multiplication factor.The module of the present invention is fitted
For various application scenarios, the versatility of NB-IOT modules is improved.
3rd, arrowband Internet of Things module of the invention has the characteristics of having a wide range of application, portable strong, cost is low so that tool
There is good promotion prospect.
Brief description of the drawings
Fig. 1 is the theory diagram with adaptation function, the arrowband Internet of Things module having a wide range of application of the present invention；
Fig. 2 is the circuit theory diagrams of Fig. 1 arrowband Internet of Things module；
Fig. 3 is the circuit theory diagrams of Fig. 1 automatic gain control unit.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
Embodiment
Refer to Fig. 1-2, the present invention provide it is a kind of with adaptation function, the arrowband Internet of Things module 10 having a wide range of application,
Including：Main control unit 100, TX impedance matching units 200, RX impedance matching units 300, automatic gain control unit 400, Gao Zeng
Beneficial amplifier 500, logic control switch 600 and antenna matching unit 700.It should be noted that the TX impedance matching units
200 are used to farthest eliminate the influence that electromagnetic interference is brought, and ensure the high-quality transmission of signal；The RX impedance matchings list
Member 300 is used to filter out electromagnetic interference, possesses 30dB fundamental frequency suppression ability and more than 55dB harmonic inhibition capability；The high increasing
Beneficial amplifier 500 is used to amplify transimission power, and highest multiplication factor reaches more than 30dB, and hardware branch is provided for long-distance transmissions
Hold；The logic control switch 600 is used for the selection for carrying out TX/RX.
The main control unit 100 by the TX impedance matching units 200 respectively with the high-gain amplifier 500 and institute
Logic control switch 600 is stated to connect, the main control unit 100 successively with the automatic gain control unit 400, the high-gain
Amplifier 500 and the logic control switch 600 connect, the antenna matching unit 700 successively with the logic control switch
600th, the RX impedance matching units 300, the main control unit 100 connect.
It should also be noted that, the arrowband Internet of Things module also includes selection controlling switch U4, the 5th resistance R5 and the
13 electric capacity C13；The 5th resistance R5 and the 13rd electric capacity C13 is connected in series composition filter unit, the 5th electricity
Resistance R5 one end is connected with the main control unit, and the other end is connected with the ANT pin of the selection controlling switch U4, the selection control
System switch U4 RF1 pin are connected with the high-gain amplifier.Specifically, U4 is TX selection controlling switches, according to chip rear end
To the testing result of signal to control TX directly to carry out net mate output, or exported by PA.
In short-distance transmission, the transmission power of master control list 100 passes through TX impedance matching units 200, logic control switch
600th, antenna matching unit 700 is launched, and realizes efficient transmission；In long-distance transmissions, the transmitting of main control unit 100
Power passes through automatic gain control unit 400, high-gain amplifier 500, logic control switch 600 and antenna matching unit 700
Handled and transmitted, realize high power transmission.
Further, the main control unit 100 includes processor 110, LAN120, signal detector 130 and comparator
140, the LAN120 are connected through the signal detector 130, the comparator 140 with the processor 110 successively, described
LAN120 is also connected with the RX impedance matching units 300, the processor 110 respectively with the TX impedance matching units 200
Connected with the automatic gain control unit 300.
It should be noted that the antenna matching unit is also associated with antenna.
Further, the TX impedance matching units 200 include first resistor R1, second resistance R2, the first electric capacity C1, the
Two electric capacity C2 and TX wave filter FILT1；
One end of the first resistor R1 is connected with the high-gain amplifier and the first electric capacity C1 respectively, the other end
It is connected with 1 pin of the TX wave filters FILT1, the other end ground connection of the first electric capacity C1；1 pin of the TX wave filters is
IN/OUT pins.
The one end of 3 pin of the TX wave filters FILT2 respectively with the second electric capacity C2 and the second resistance R2 is connected,
The other end ground connection of the second electric capacity C2, the other end of the second resistance R2 are connected with the logic control element 600.Institute
1 pin for stating TX wave filters FILT1 is OUT/IN pins.
The RX impedance matching units 300 include the 3rd electric capacity C3, the 4th electric capacity C4,3rd resistor R3 and RX wave filter
FILT2；
1 pin of the RX wave filters FILT2 is connected after the 3rd resistor R3 with the logic control switch 600, institute
The one end for stating 3rd resistor R3 is grounded after the 3rd electric capacity C3, and the other end is grounded after the 4th electric capacity C4.The RX
The IN pins of wave filter FILT2 1 pin.
The high-gain amplifier 500 includes the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the
Nine electric capacity C9 and amplifier U9；
One end ground connection of the 5th electric capacity C5, the other end is grounded after the 6th electric capacity C6, the 7th electric capacity C7, described
2 pin of the 6th electric capacity C6 also with the amplifier U9 are connected, 9 pin of the amplifier U9 respectively with the 8th electric capacity C8 and
Nine electric capacity C9 one end connection, the other end ground connection of the 8th electric capacity C8, the other end and the TX of the 9th electric capacity C9
Impedance matching unit 200 connects.
The logic control switch 600 includes controlling switch U8, the tenth electric capacity C10 and the first inductance L1；The control is opened
9 pin for closing U8 are grounded after the first inductance L1, the tenth electric capacity C10.
Referring to Fig. 3, the automatic gain control unit 400 includes gain controller U2, the tenth resistance R10, the 11st
Electric capacity C11, the 12nd electric capacity C12 and the second inductance L2；
The VIN pin of the gain controller U2 are connected with the main control unit 100, and VIN pin are through the 12nd electric capacity
C12 is grounded, and is also grounded after the tenth resistance R10, the 11st electric capacity C11；The SW pin warp of the gain controller U2
Second inductance is connected with the 11st electric capacity C11.
Using high-gain PA, logic control part and net mate part circuit as core, with the level detector of rear end, ratio
Based on the functional modules such as unit, signal passes through net mate, ensures accurate undistorted transmission to backend processing unit and right
Reception signal automatic detection judges, to confirm the selection of the switch of PA logics and multiplication factor.Product goes for 3GPP's
Various application scenarios, turn into the extremely strong NB-IOT modules of a versatility.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that the ordinary skill people for this area
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the present invention's
Protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
- It is 1. a kind of with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that including：Main control unit, TX Impedance matching unit, RX impedance matching units, automatic gain control unit, high-gain amplifier, logic control switch and antenna Matching unit；The main control unit is opened with the high-gain amplifier and the logic control respectively by the TX impedance matching units Connection connects, the main control unit successively with the automatic gain control unit, the high-gain amplifier and the logic control Switch connection, the antenna matching unit successively with the logic control switch, the RX impedance matching units, the master control list Member connection；In short-distance transmission, the transmission power of main control unit passes through TX impedance matching units, logic control switch, antenna match Unit is launched, and realizes efficient transmission；In long-distance transmissions, the transmission power of main control unit passes through automatic gain control Unit, high-gain amplifier, logic control switch and antenna matching unit processed are handled and transmitted, and realize high power transmission.
- It is 2. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The main control unit includes processor, LAN, signal detector and comparator, and the LAN is successively through the signal detector, institute Comparator is stated to be connected with the processor, the LAN is also connected with the RX impedance matching units, the processor respectively with institute TX impedance matching units are stated to connect with the automatic gain control unit.
- It is 3. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The antenna matching unit is also associated with antenna.
- It is 4. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The TX impedance matching units include first resistor R1, second resistance R2, the first electric capacity C1, the second electric capacity C2 and TX wave filter；One end of the first resistor R1 is connected with the high-gain amplifier and the first electric capacity C1 respectively, the other end and institute State the 1 pin connection of TX wave filters, the other end ground connection of the first electric capacity C1；The one end of 3 pin of the TX wave filters respectively with the second electric capacity C2 and the second resistance R2 is connected, and described second Electric capacity C2 other end ground connection, the other end of the second resistance R2 are connected with the logic control element.
- It is 5. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The RX impedance matching units include the 3rd electric capacity C3, the 4th electric capacity C4,3rd resistor R3 and RX wave filter；1 pin of the RX wave filters is connected after the 3rd resistor R3 with the logic control switch, the 3rd resistor R3 One end be grounded after the 3rd electric capacity C3, the other end is grounded after the 4th electric capacity C4.
- It is 6. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The high-gain amplifier include the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9 and Amplifier U9；One end ground connection of the 5th electric capacity C5, the other end are grounded after the 6th electric capacity C6, the 7th electric capacity C7, and the described 6th 2 pin of the electric capacity C6 also with the amplifier U9 are connected, and 9 pin of the amplifier U9 are electric with the 8th electric capacity C8 and the 9th respectively Hold C9 one end connection, the other end ground connection of the 8th electric capacity C8, the other end and the TX impedances of the 9th electric capacity C9 Matching unit connects.
- It is 7. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The logic control switch includes controlling switch U8, the tenth electric capacity C10 and the first inductance L1；9 pin of the controlling switch U8 are grounded after the first inductance L1, the tenth electric capacity C10.
- It is 8. according to claim 1 with adaptation function, the arrowband Internet of Things module having a wide range of application, it is characterised in that The automatic gain control unit includes gain controller U2, the tenth resistance R10, the 11st electric capacity C11, the 12nd electric capacity C12 With the second inductance L2；The VIN pin of the gain controller U2 are connected with the main control unit, and VIN pin are grounded through the 12nd electric capacity C12, Also it is grounded after the tenth resistance R10, the 11st electric capacity C11；The SW pin of the gain controller U2 are through described second Inductance is connected with the 11st electric capacity C11.
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