CN109547188A - A kind of full duplex multi-channel data transmission device and control method based on LoRaWAN gateway - Google Patents
A kind of full duplex multi-channel data transmission device and control method based on LoRaWAN gateway Download PDFInfo
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- CN109547188A CN109547188A CN201811635534.6A CN201811635534A CN109547188A CN 109547188 A CN109547188 A CN 109547188A CN 201811635534 A CN201811635534 A CN 201811635534A CN 109547188 A CN109547188 A CN 109547188A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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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
- H04W88/16—Gateway arrangements
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- 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
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of full duplex multi-channel data transmission devices and control method based on LoRaWAN gateway, including MCU processor, first interface, LoRa Receiver Module, second interface, Ethernet interface, several LoRa radiofrequency emitting modules, LoRaWAN network server, control method includes the following steps: 1: system initialization；2: upstream data processing；3: downlink data processing, present invention greatly enhances data transmission efficiency, the transmitting-receiving of data is decoupled, and greatly increases the node capacity of LoRaWAN network interface support, the LoRa radiofrequency emitting module that extension can be selected one or more according to the demand of power system capacity.
Description
Technical field
The invention belongs to wireless communication technology fields, and in particular to a kind of full duplex multichannel based on LoRaWAN gateway
Data transmission device and control method.
Background technique
In recent years with the continuous heating that Internet of Things is applied, LoRa technology starts of interest by more and more people.But it is existing
LoRaWAN gateway radio frequency part be with half-duplex mechanism works, that is, cannot send, send when receiving wireless data
It cannot be received when wireless data.Semiduplex mode makes LoRaWAN gateway be only applicable to low rate, the inefficient data of low data bulk
Acquisition applications scene significantly limits LoRaWAN gateway in the application of data high-speed transmitting-receiving scene.
Summary of the invention
The purpose of the present invention is overcoming the shortcomings of in existing LoRaWAN technology, provide a kind of based on the complete of LoRaWAN gateway
Duplex multi-channel data transmission device and control method.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of full duplex multi-channel data transmission device based on LoRaWAN gateway, including MCU processor, first interface,
LoRa Receiver Module, second interface, Ethernet interface, several LoRa radiofrequency emitting modules, LoRaWAN network service
Device, LoRa Receiver Module are communicated by first interface with MCU processor, several LoRa radiofrequency emitting modules pass through
Second interface is communicated with MCU processor, and LoRaWAN network server connects MCU processor by Ethernet interface.
The number of LoRa radiofrequency emitting module is less than or equal to 96.LoRa radiofrequency emitting module quantity can be as needed
It is increased and decreased, maximum supports 96.
A kind of control method of the full duplex multi-channel data transmission device based on LoRaWAN gateway, includes the following steps:
1: system initialization；
2: upstream data processing；
3: downlink data processing.
System initialization includes the following steps:
Step (1): first interface and second interface are initialized；
Step (2): loading interface driver is communicated with first interface and second interface for MCU processor and is ready；
Then first interface and second interface initialization；
Step (3): MCU processor to LoRa Receiver Module carry out initial configuration, be arranged its working signal frequency,
Signal strength, the initialization of data receiver buffer area, are then placed in reception state for LoRa Receiver Module；
Step (4): MCU processor carries out initial configuration to LoRa radiofrequency emitting module, and setting data emit buffer area
Initialization, is placed in standby mode for LoRa radiofrequency emitting module；
Step (5): MCU processor creates upstream data message queue, receives for caching from LoRa Receiver Module
The upstream data arrived, then MCU processor creates downstream data message queue, receives down for caching from Ethernet interface
Row data, MCU processor initialize network communication, enable to communicate with the LoRaWAN network server specified.
Upstream data processing includes the following steps:
Step (1): after LoRa Receiver Module receives the rf data of LoRa radiofrequency emitting module, LoRa radio frequency is connect
Interrupt signal can be sent to MCU processor by receiving module；
Step (2): it after MCU processor receives the interrupt signal notice of LoRa Receiver Module 3, is connect from LoRa radio frequency
It searches the channel of valid data and reads out data from first interface in the reception data buffer area for receiving module；
Step (3): the upstream data message queue created in the first step is added in the data received by MCU processor,
And notify network communication subprogram that message is sent to LoRaWAN network server through Ethernet interface.
Downlink data processing includes the following steps:
Step (1): after MCU processor receives downlink data from Ethernet interface, downlink data is added to the first step
The downstream data message queue of middle creation；
Step (2): MCU processor selects a LoRa being in idle condition from several LoRa radiofrequency emitting modules
Radiofrequency emitting module, the configuration before sending to it are specified its tranmitting frequency, the parameter of transmission power, then will be sent
Data copy to the LoRa radiofrequency emitting module being in idle condition data send buffer area, sent.
Beneficial effects of the present invention are as follows: 1, the present invention has carried out extension transformation to LoRaWAN gateway, can
It is worked with full duplex mode, greatly improves data transmission efficiency；2, RF receiving and transmission module is separated, so that data
Transmitting-receiving decoupling, greatly increases the node capacity of LoRaWAN network interface support；3, it can select to extend according to the demand of power system capacity
One or more LoRa radiofrequency emitting modules.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 is work flow diagram of the invention.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawings of the specification:
As shown in Figure 1, a kind of full duplex multi-channel data transmission device based on LoRaWAN gateway, including MCU processor
1, first interface 2, LoRa Receiver Module 3, second interface 4, Ethernet interface 5, several LoRa radiofrequency emitting modules 6,
LoRaWAN network server 7, LoRa Receiver Module 3 are communicated by first interface 2 with MCU processor 1, several
LoRa radiofrequency emitting module 6 is communicated by second interface 4 with MCU processor 1, and LoRaWAN network server 7 passes through ether
Network interface 4 connects MCU processor 1.
The number of LoRa radiofrequency emitting module 6 is less than or equal to 96.6 quantity of LoRa radiofrequency emitting module can be according to need
It is increased and decreased, maximum supports 96.
A kind of control method of the full duplex multi-channel data transmission device based on LoRaWAN gateway as shown in Figure 2, including
Following steps: 1: system initialization；2: upstream data processing；3: downlink data processing.
System initialization includes the following steps:
Step (1): first interface 2 and second interface 4 are initialized；
Step (2): loading interface driver is that MCU processor 1 communicates with first interface 2 and second interface 4 and carries out standard
Standby, then first interface 2 and second interface 4 initialize；
Step (3): MCU processor 1 carries out initial configuration to LoRa Receiver Module 3, its working signal frequency is arranged
Rate, signal strength, the initialization of data receiver buffer area, are then placed in reception state for LoRa Receiver Module 3；
Step (4): MCU processor 1 carries out initial configuration to LoRa radiofrequency emitting module 6, and setting data emit buffering
Area's initialization, is placed in standby mode for LoRa radiofrequency emitting module 6；
Step (5): MCU processor 1 creates upstream data message queue, connects for caching from LoRa Receiver Module 3
The upstream data received, then MCU processor 1 creates downstream data message queue, receives for caching from Ethernet interface 5
Downlink data, MCU processor 1 initialize network communication, enable to communicate with the LoRaWAN network server 7 specified.
Upstream data processing includes the following steps:
Step (1): after LoRa Receiver Module 3 receives the rf data of LoRa radiofrequency emitting module 6, LoRa radio frequency
Receiving module 3 can send interrupt signal to MCU processor 1；
Step (2): after MCU processor 1 receives the interrupt signal notice of LoRa Receiver Module 3, from LoRa radio frequency
It searches the channel of valid data and reads out data from first interface 2 in the reception data buffer area of receiving module 3；
Step (3): the upstream data message queue created in the first step is added in the data received by MCU processor 1,
And notify network communication subprogram that message is sent to LoRaWAN network server 7 through Ethernet interface 5.
Downlink data processing includes the following steps: step (1): MCU processor 1 receives lower line number from Ethernet interface 5
According to rear, downlink data is added to the downstream data message queue created in the first step；Step (2): MCU processor 1 is from 96
A LoRa radiofrequency emitting module 6 being in idle condition, matching before sending to it are selected in LoRa radiofrequency emitting module 6
It sets, specifies its tranmitting frequency, the parameter of transmission power, then data copy to be sent is penetrated to the LoRa being in idle condition
The data of frequency transmitting module 6 send buffer area, are sent.
LoRa Receiver Module is constantly in reception state at work, the special LoRa radio-frequency transmissions mould for receiving uplink
The data packet of block 6.There is data buffer area inside LoRa Receiver Module, is sent after receiving a full message and interrupt letter
Number give MCU processor 1, MCU processor 1 receive LoRa Receiver Module transmission interrupt signal after, pass through first interface
The valid data of LoRa Receiver Module data buffer area are read, and upstream message queue is added after these data are packaged,
LoRaWAN server is transmitted to by ether processing routine of surfing the net.
LoRa radiofrequency emitting module is responsible for for downlink data being sent to LoRa Receiver Module.Ethernet interface 5 receives
To after the downlink data that LoRaWAN server is sent, the descending channel information carried according to data packet is passed through into second interface
LoRa radiofrequency emitting module is configured, specifies it to send frequency and send the radio frequency operations parameters such as power, then by downlink
Data are write LoRa radiofrequency emitting module transmission data buffer and are sent.
LoRaWAN full duplex gateway default supports the message of 8 channels to receive parallel, so the present invention changes it
It makes, increases one or more LoRa radiofrequency emitting modules on gateway hardware for sending, through this transformation, LoRaWAN gateway
It can be received and transmitted, can work in the full-duplex mode simultaneously.
The present invention is by the transformation to LoRaWAN gateway, so as to handle uplink and downlink message, message throughput simultaneously
Reach twice it is even more, so as to apply the application scenarios in the data transmit-receive of high-speed, low latency.
The present invention has carried out extension transformation to LoRaWAN gateway, can be worked with full duplex mode, greatly
Improve data transmission efficiency；RF receiving and transmission module is separated, so that the transmitting-receiving of data decouples, is greatly increased
The node capacity that LoRaWAN network interface is supported；The LoRa radio frequency that extension can be selected one or more according to the demand of power system capacity is sent out
Penetrate module.
It should be noted that listed above is only a kind of specific embodiment of the invention.It is clear that the invention is not restricted to
Upper embodiment, can also be there are many deforming, in short, those skilled in the art can directly lead from present disclosure
Out or all deformations for associating, it is considered as protection scope of the present invention.
Claims (6)
1. a kind of full duplex multi-channel data transmission device based on LoRaWAN gateway, which is characterized in that including MCU processor
(1), first interface (2), LoRa Receiver Module (3), second interface (4), Ethernet interface (5), several LoRa radio frequencies
Transmitting module (6), LoRaWAN network server (7), the LoRa Receiver Module (3) pass through first interface (2) and MCU
Processor (1) is communicated, several described LoRa radiofrequency emitting modules (6) pass through second interface (4) and MCU processor (1)
It is communicated, the LoRaWAN network server (7) passes through Ethernet interface (4) connection MCU processor (1).
2. a kind of full duplex multi-channel data transmission device based on LoRaWAN gateway, feature exist according to claim 1
In the number of the LoRa radiofrequency emitting module (6) is less than or equal to 96.
3. a kind of control method of the full duplex multi-channel data transmission device based on LoRaWAN gateway, which is characterized in that including
Following steps:
Step 1: system initialization；
Step 2: upstream data processing；
Step 3: downlink data processing.
4. a kind of controlling party of the full duplex multi-channel data transmission device based on LoRaWAN gateway according to claim 3
Method, which is characterized in that the system initialization includes the following steps:
Step (1): first interface (2) and second interface (4) are initialized；
Step (2): loading interface driver is that MCU processor (1) communicates and carries out with first interface (2) and second interface (4)
Prepare, then first interface (2) and second interface (4) initialization；
Step (3): MCU processor (1) carries out initial configuration to LoRa Receiver Module (3), its working signal frequency is arranged
Rate, signal strength, the initialization of data receiver buffer area, are then placed in reception state for LoRa Receiver Module (3)；
Step (4): MCU processor (1) carries out initial configuration to LoRa radiofrequency emitting module (6), and setting data emit buffering
Area's initialization, is placed in standby mode for LoRa radiofrequency emitting module (6)；
Step (5): MCU processor (1) creates upstream data message queue, connects for caching from LoRa Receiver Module (3)
The upstream data received, then MCU processor (1) creates downstream data message queue, connects for caching from Ethernet interface (5)
The downlink data received, MCU processor (1) initialize network communication, the LoRaWAN network server for enabling and specifying
(7) it communicates.
5. a kind of controlling party of the full duplex multi-channel data transmission device based on LoRaWAN gateway according to claim 3
Method, which is characterized in that the upstream data processing includes the following steps:
Step (1): after LoRa Receiver Module (3) receives the rf data of LoRa radiofrequency emitting module (6), LoRa radio frequency
Receiving module (3) can send interrupt signal and give MCU processor (1)；
Step (2): it after MCU processor (1) receives the interrupt signal notice of LoRa Receiver Module 3, is connect from LoRa radio frequency
It searches the channel of valid data and reads out data from first interface (2) in the reception data buffer area for receiving module (3)；
Step (3): the upstream data message queue created in the first step is added in the data received by MCU processor (1), and
Notify network communication subprogram that message is sent to LoRaWAN network server (7) through Ethernet interface (5).
6. a kind of controlling party of the full duplex multi-channel data transmission device based on LoRaWAN gateway according to claim 3
Method, which is characterized in that the downlink data processing includes the following steps:
Step (1): after MCU processor (1) receives downlink data from Ethernet interface (5), downlink data is added to first
The downstream data message queue created in step；
Step (2): MCU processor (1) selection one from several LoRa radiofrequency emitting modules (6) is in idle condition
Its tranmitting frequency, the parameter of transmission power are specified in LoRa radiofrequency emitting module (6), the configuration before sending to it, then will
The data of the data copy to be sent to the LoRa radiofrequency emitting module (6) being in idle condition send buffer area, are sent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2018105063467 | 2018-05-24 | ||
| CN201810506346.7A CN108809616A (en) | 2018-05-24 | 2018-05-24 | A kind of full duplex multi-channel data transmission device and control method based on LoRaWAN gateways |
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| CN109547188A true CN109547188A (en) | 2019-03-29 |
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| CN201810506346.7A Withdrawn CN108809616A (en) | 2018-05-24 | 2018-05-24 | A kind of full duplex multi-channel data transmission device and control method based on LoRaWAN gateways |
| CN201811635534.6A Pending CN109547188A (en) | 2018-05-24 | 2018-12-29 | A kind of full duplex multi-channel data transmission device and control method based on LoRaWAN gateway |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111585599A (en) * | 2019-12-11 | 2020-08-25 | 利尔达科技集团股份有限公司 | Multichannel LoRa radio frequency transceiver based on SX1301 |
| CN111628884A (en) * | 2020-03-31 | 2020-09-04 | 新华三技术有限公司 | Terminal upgrading method, gateway and intelligent terminal equipment |
| CN113922838A (en) * | 2021-10-20 | 2022-01-11 | 四川灵通电讯有限公司 | Multi-channel LoRa gateway communication system based on SX1276/7/8 and application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109412631A (en) * | 2018-11-23 | 2019-03-01 | 北京资信物联科技有限公司 | Expandable type LoRa gateway system |
| CN110418425A (en) * | 2019-07-29 | 2019-11-05 | 北京安云世纪科技有限公司 | Gateway, data communications method and calculating equipment based on Lora agreement |
| CN110944310A (en) * | 2019-12-16 | 2020-03-31 | 众邦同力(武汉)技术有限公司 | Based on LoRaTMMulti-channel point-to-point communication apparatus and method of technology |
| CN111315041A (en) * | 2020-02-13 | 2020-06-19 | 东南大学 | Full-duplex LoRa gateway supporting LoRaWAN protocol |
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| CN111585599A (en) * | 2019-12-11 | 2020-08-25 | 利尔达科技集团股份有限公司 | Multichannel LoRa radio frequency transceiver based on SX1301 |
| CN111628884A (en) * | 2020-03-31 | 2020-09-04 | 新华三技术有限公司 | Terminal upgrading method, gateway and intelligent terminal equipment |
| CN113922838A (en) * | 2021-10-20 | 2022-01-11 | 四川灵通电讯有限公司 | Multi-channel LoRa gateway communication system based on SX1276/7/8 and application method |
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| Publication number | Publication date |
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| CN108809616A (en) | 2018-11-13 |
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