CN108173920A - Document transmission method based on LORAWAN - Google Patents
Document transmission method based on LORAWAN Download PDFInfo
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- CN108173920A CN108173920A CN201711407588.2A CN201711407588A CN108173920A CN 108173920 A CN108173920 A CN 108173920A CN 201711407588 A CN201711407588 A CN 201711407588A CN 108173920 A CN108173920 A CN 108173920A
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- file
- lorawan
- network server
- data packet
- gateways
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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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
Abstract
The present invention relates to field of communication technology, embodiment specifically discloses a kind of document transmission method based on LORAWAN, and file upload request packet is sent to LORAWAN gateways by network server；After LORAWAN gateways receive file upload request packet, answer file uploads requirement packet to network server；Network server receive file upload requirement packet after, by file division to be sent into meet LORAWAN gateway files upload requirement several data packets；Transmission data packet is to LORAWAN gateways one by one for network server, until file to be sent is sent.Realize has better reliability when LORAWAN gateways and network server carry out transmitting data file, ensure that the integrality of data and the high efficiency of transmission.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of document transmission method based on LORAWAN.
Background technology
LoRa technologies are the extra long distance provided by Semtech companies, the Internet of Things solution of low-power consumption.
LORAWANLORAWAN gateways are the cores of LORA networks, are the bridges between terminal and network server, while are also more letters
The transceiver in road.It is attached between LORAWANLORAWAN gateways and network of network server by standard IP,
The agreement more used between LORAWANLORAWAN gateways and network of network server is realized based on udp protocol, is used
Udp protocol can realize file transmission efficiency higher, but udp protocol is such as deposited while file is transmitted there is poor reliability
The problem of data packetloss and message are tampered is being transmitted, while individual data message transmissions can only be limited to and data retransmit machine
Make the problem of less.
Invention content
In view of this, for the above problem existing for udp protocol transmission file is used in the prior art, the application provides one
The more reliable document transmission method based on LORAWAN of kind.
For solution more than technical problem, technical solution provided by the invention is a kind of file transmission side based on LORAWAN
Method, applied to network server and LORAWAN gateways, including：
S11：Network server sends file upload request packet to LORAWAN gateways；
S12：After LORAWAN gateways receive the file upload request packet, answer file uploads requirement packet to network service
Device；LORAWAN gateways create corresponding file for storing the data packet received from network server；
S13：Network server is received after the file uploads requirement packet, by file division to be sent into meeting LORAWAN
Gateway files upload several data packets of requirement；
S14：Transmission data packet is to LORAWAN gateways one by one for network server, until the file to be sent is sent.
More preferably, in the step S11, the filename of file upload request packet including file to be sent, file size and
File subpackage size.
More preferably, in the step S12, it is big that file uploads the file for requiring to include LORAWAN gateway acceptable files
Small and file subpackage size.
More preferably, in the step S14, transmission data packet is to LORAWAN gateways one by one for network server, until described treat
The method that file is sent is sent, including：
S141：Several data packets are divided into several batch data packets by network server according to default every batch of number；
S142：Network server send data packet to LORAWAN gateways by wholesale, until the file to be sent has been sent
Finish.
More preferably, in the step S142, network server send data packet to LORAWAN gateways by wholesale, until described
The method that file to be sent is sent, including：
S1421：Network server continuously transmits batch of data packet to LORAWAN gateways；
S1422：Network server sends batch data packet packet loss inquiry packet to LORAWAN gateways；
S1423：LORAWAN gateways check whether the data packet lost in the batch data packet, if it is not, then entering step
S1425, if so, entering step S1424；
S1424：LORAWAN gateway responses are lost data packet number in the batch data packet and data packet Bale No. to network and are taken
Business device, network server retransmit the data packet lost in the batch data packet to LORAWAN gateways, enter step S1422；
S1425：The response of LORAWAN gateways does not lose data packet in the batch data packet to network server；Network service
Device checks whether file to be sent is sent, if it is not, then entering step S1426；If so, enter step S1427；
S1426：Network server continuously transmits next group data packet to LORAWAN gateways, enters step 1422；
S1427:Network server sends the batch data packet packet loss inquiry that packet number is 0 and wraps to LORAWAN gateways,
The response of LORAWAN gateways does not lose the batch data packet to network server, then file to be sent is sent.
The present invention also provides a kind of document transmission method based on LORAWAN, applied to network server and LORAWAN nets
It closes, including：
S21：Network server sends file download request bag to LORAWAN gateways；
S22：After LORAWAN gateways receive the file download request bag, answer file, which is downloaded, confirms packet to network service
Device；File to be downloaded is divided into several data packets by LORAWAN gateways；
S23：After network server receives the file download confirmation packet, network server creates corresponding file for depositing
Store up the data packet received from LORAWAN gateways；
S24：Transmission data packet is to network server one by one for LORAWAN gateways, until the file to be downloaded is sent.
More preferably, in the step S21, file download request bag includes the filename of file to be downloaded.
More preferably, in the step S22, file download confirmation include the filename of file to be downloaded, file size and
File subpackage size.
More preferably, in the step S24, transmission data packet is to network server one by one for LORAWAN gateways, until described treat
The method that file is sent is downloaded, including：
S241：Several data packets are divided into several batch data packets by LORAWAN gateways according to default every batch of number；
S242：LORAWAN gateways send data packet to network server by wholesale, until the file to be downloaded has been sent
Finish.
More preferably, in the step S242, LORAWAN gateways send data packet to network server by wholesale, until described
The method that file to be downloaded is sent, including：
S2421：LORAWAN gateways continuously transmit batch of data packet to network server；
S2422：LORAWAN gateways send batch data packet packet loss inquiry packet to network server；
S2423：Network server checks whether the data packet lost in the batch data packet, if it is not, then entering step
S2425, if so, entering step S2424；
S2424：Network server response loses data packet number in the batch data packet and data packet Bale No. to LORAWAN
Gateway, LORAWAN gateways retransmit the data packet lost in the batch data packet to network server, enter step S2422；
S2425：Network server response does not lose data packet in the batch data packet to LORAWAN gateways, LORAWAN nets
It closes and checks whether file to be downloaded is sent, if it is not, then entering step S2426；If so, enter step S2427；
S2426：LORAWAN gateways continuously transmit next group data packet to network server, enter step S2422；
S2427：LORAWAN gateways send the batch data packet packet loss inquiry that packet number is 0 and wrap to LORAWAN gateways, network
Server response does not lose data packet in the batch data packet to LORAWAN gateways, and file to be downloaded is sent.
Compared with prior art, detailed description are as follows for advantage by the application：It realizes in LORAWAN gateways and network
During the transmitting data file of server with better reliability and during data transmission with better data integrity and
Transmit high efficiency.
Description of the drawings
Fig. 1 is document transmission method flow diagram of the embodiment of the present invention based on LORAWAN；
Fig. 2 be network server of the embodiment of the present invention one by one transmission data packet to LORAWAN gateways method flow illustrate
Figure；
Fig. 3 is that network server of the embodiment of the present invention is illustrated by the wholesale method flow for sending data packet to LORAWAN gateways
Figure；
Fig. 4 is document transmission method flow diagram of the another embodiment of the present invention based on LORAWAN；
Fig. 5 be another embodiment of the present invention LORAWAN gateways one by one transmission data packet to network server method flow
Schematic diagram；
Fig. 6 is another embodiment of the present invention LORAWAN gateways by the wholesale method flow for sending data packet to network server
Schematic diagram.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to which those skilled in the art is made to more fully understand technical scheme of the present invention
Applying example, the present invention is described in further detail.
As shown in Figure 1, the embodiment of the present invention provides a kind of document transmission method based on LORAWAN, taken applied to network
Be engaged in device and LORAWAN gateways, applied to network server on LORAWAN gateways transmitting file, including：
S11：Network server sends file upload request packet to LORAWAN gateways；
S12：After LORAWAN gateways receive file upload request packet, answer file uploads requirement packet to network server；
LORAWAN gateways create corresponding file for storing the data packet received from network server；
S13：Network server is received after file uploads requirement packet, by file division to be sent into meeting LORAWAN gateways
File uploads several data packets of requirement；
S14：Transmission data packet is to LORAWAN gateways one by one for network server, until file to be sent is sent.
Specifically, in step S11, file upload request packet includes filename, file size and the file of file to be sent
Subpackage size.
Specifically, in step S12, file upload requirement include the file sizes of LORAWAN gateway acceptable files with
File subpackage size.
As shown in Fig. 2, in step S14, transmission data packet is to LORAWAN gateways one by one for network server, until to be sent
The method that file is sent, including：
S141：Several data packets are divided into several batch data packets by network server according to default every batch of number；
S142：Network server send data packet to LORAWAN gateways by wholesale, until file to be sent is sent.
As shown in figure 3, in step S142, network server send data packet to LORAWAN gateways by wholesale, until to be sent
The method that file is sent, including：
S1421：Network server continuously transmits batch of data packet to LORAWAN gateways；
S1422：Network server sends batch data packet packet loss inquiry packet to LORAWAN gateways；
S1423：LORAWAN gateways check whether the data packet lost in the batch data packet, if it is not, then entering step
S1425, if so, entering step S1424；
S1424：LORAWAN gateway responses are lost data packet number in the batch data packet and data packet Bale No. to network and are taken
Business device, network server retransmit the data packet lost in the batch data packet to LORAWAN gateways, enter step S1422；
S1425：The response of LORAWAN gateways does not lose data packet in the batch data packet to network server；Network service
Device checks whether file to be sent is sent, if it is not, then entering step S1426；If so, enter step S1427；
S1426：Network server continuously transmits next group data packet to LORAWAN gateways, enters step 1422；
S1427:Network server sends the batch data packet packet loss inquiry that packet number is 0 and wraps to LORAWAN gateways,
The response of LORAWAN gateways does not lose the batch data packet to network server, then file to be sent is sent.
For example, when network server transmitting file on LORAWAN gateways, definition code is：Cmd=command keywords,
Dir=transmission directions, fl=file length file sizes, ps=packet size subpackage sizes, pn=packet
Number Bale No.s, pc=packet count packet numbers, pl=packet number list Bale No. tables.
TRANS_FILE (cmd=0, dir=0, fl=12345, ps=1024, name=test.txt), network service
Device sends file transmission request, the entitled test.txt of file, 12345 byte of file size, 1024 byte of file subpackage size.
TRANS_FILE_ACK (cmd=Ox80, fl=12345, ps=1024), LORAWAN gateway responses are acceptable
File size and subpackage size.
TRANS_FILE (cmd=1, pn=0, data ...),
TRANS_FILE (cmd=1, pn=1, data ...),
TRANS_FILE (cmd=1, pn=2, data ...),
TRANS_FILE (cmd=1, pn=3, data ...), network server send file data, connect according to preset quantity
Supervention send 4 data packets.
Whether TRANS_FILE (cmd=2, pc=4, pl=0,1,2,3), network server inquiry have switch.
TRANS_FILE_ACK (cmd=Ox83, pc=1, pl=2), the unreceived packet number of LORAWAN gateway responses and packet
Number.
TRANS_FILE (cmd=1, pn=2, data ...), network server retransmit the packet lost.
TRANS_FILE (cmd=2, pc=1, pl=2), whether network server is inquired again has switch.
TRANS_FILE_ACK (cmd=Ox83, pc=0), LORAWAN gateway response, do not exchange.
TRANS_FILE (cmd=2, pc=0) network server is sent completely, and is led to by sending the inquiry packet that packet number is 0
Know LORAWAN gateways.
TRANS_FILE_ACK (cmd=Ox83, pc=0) LORAWAN gateway responses receive.
As shown in figure 4, present invention another kind embodiment provides a kind of document transmission method based on LORAWAN, it is applied to
Network server and LORAWAN gateways, applied to network server from LORAWAN gateway downloads files, including：
S21：Network server sends file download request bag to LORAWAN gateways；
S22：After LORAWAN gateways receive file download request bag, answer file, which is downloaded, confirms packet to network server；
File to be downloaded is divided into several data packets by LORAWAN gateways；
S23：Network server is received after file download confirms packet, network server create corresponding file for store from
The data packet that LORAWAN gateways receive；
S24：Transmission data packet is to network server one by one for LORAWAN gateways, until the file to be downloaded is sent.
Specifically, in step S21, file download request bag includes the filename of file to be downloaded.
Specifically, in step S22, file download confirms filename, file size and the file for including file to be downloaded
Subpackage size.
As shown in figure 5, in step S24, transmission data packet is to network server one by one for LORAWAN gateways, until to be downloaded
The method that file is sent, including：
S241：Several data packets are divided into several batch data packets by LORAWAN gateways according to default every batch of number；
S242：LORAWAN gateways send data packet to network server by wholesale, until file to be downloaded is sent.
As shown in fig. 6, in step S242, LORAWAN gateways send data packet to network server by wholesale, until to be downloaded
The method that file is sent, including：
S2421：LORAWAN gateways continuously transmit batch of data packet to network server；
S2422：LORAWAN gateways send batch data packet packet loss inquiry packet to network server；
S2423：Network server checks whether the data packet lost in the batch data packet, if it is not, then entering step
S2425, if so, entering step S2424；
S2424：Network server response loses data packet number in the batch data packet and data packet Bale No. to LORAWAN
Gateway, LORAWAN gateways retransmit the data packet lost in the batch data packet to network server, enter step S2422；
S2425：Network server response does not lose data packet in the batch data packet to LORAWAN gateways, LORAWAN nets
It closes and checks whether file to be downloaded is sent, if it is not, then entering step S2426；If so, enter step S2427；
S2426：LORAWAN gateways continuously transmit next group data packet to network server, enter step S2422；
S2427：LORAWAN gateways send the batch data packet packet loss inquiry that packet number is 0 and wrap to LORAWAN gateways, network
Server response does not lose data packet in the batch data packet to LORAWAN gateways, and file to be downloaded is sent.
Network server and the File Transfer Protocol (document transmission method) of LORANWAN gateways setting, based on UDP (User
The abbreviation of Datagram Protocol, Chinese name are User Datagram Protocol), include file request packet, data packet and packet loss
Inquiry.File transmission is two-way, and network server can upload files to LORAWAN gateways, can also download in LORAWAN gateways
Existing file.Transmission process is network server transmission file request packet to LORAWAN gateways, and file is included in request bag
The information such as name, file size, subpackage size, response network server after LORAWAN gateways receive are negotiated with network server
The acceptable file size of LORAWAN gateways and subpackage size.Later network server can Batch sending data packet, then pass through
Whether packet loss inquiry packet inquiry has packet loss, has packet loss then to retransmit packet loss, repeats this process until file is sent completely.On if
Transmitting file, then the corresponding file of LORAWAN gateways establishment, is stored after receiving data.If file is downloaded, then by network
Server sends file request, and LORAWAN gateways carry out data packet and send and packet loss inquiry.This document transmission method has more preferable
Reliability, while realized during data transmission data integrality and transmission high efficiency.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (10)
1. a kind of document transmission method based on LORAWAN, applied to network server and LORAWAN gateways, which is characterized in that
Including：
S11：Network server sends file upload request packet to LORAWAN gateways；
S12：After LORAWAN gateways receive the file upload request packet, answer file uploads requirement packet to network server；
LORAWAN gateways create corresponding file for storing the data packet received from network server；
S13：Network server is received after the file uploads requirement packet, by file division to be sent into meeting LORAWAN gateways
File uploads several data packets of requirement；
S14：Transmission data packet is to LORAWAN gateways one by one for network server, until the file to be sent is sent.
2. the document transmission method according to claim 1 based on LORAWAN, which is characterized in that in the step S11,
File upload request packet includes filename, file size and the file subpackage size of file to be sent.
3. the document transmission method according to claim 1 based on LORAWAN, which is characterized in that in the step S12,
File uploads requirement and includes the file size of LORAWAN gateway acceptable files and file subpackage size.
4. the document transmission method according to claim 1 based on LORAWAN, which is characterized in that in the step S14,
Transmission data packet is to LORAWAN gateways one by one for network server, until the method that the file to be sent is sent, including：
S141：Several data packets are divided into several batch data packets by network server according to default every batch of number；
S142：Network server send data packet to LORAWAN gateways by wholesale, until the file to be sent is sent.
5. the document transmission method according to claim 4 based on LORAWAN, which is characterized in that in the step S142,
Network server send data packet to LORAWAN gateways by wholesale, until the method that the file to be sent is sent, including：
S1421：Network server continuously transmits batch of data packet to LORAWAN gateways；
S1422：Network server sends batch data packet packet loss inquiry packet to LORAWAN gateways；
S1423：LORAWAN gateways check whether the data packet lost in the batch data packet, if it is not, S1425 is then entered step, if
It is then to enter step S1424；
S1424：LORAWAN gateway responses lose data packet number in the batch data packet and data packet Bale No. to network service
Device, network server retransmit the data packet lost in the batch data packet to LORAWAN gateways, enter step S1422；
S1425：The response of LORAWAN gateways does not lose data packet in the batch data packet to network server；Network server is examined
Look into whether file to be sent is sent, if it is not, then entering step S1426；If so, enter step S1427；
S1426：Network server continuously transmits next group data packet to LORAWAN gateways, enters step 1422；
S1427:Network server sends the batch data packet packet loss inquiry that packet number is 0 and wraps to LORAWAN gateways, LORAWAN nets
It closes response and does not lose the batch data packet to network server, then file to be sent is sent.
6. a kind of document transmission method based on LORAWAN, applied to network server and LORAWAN gateways, which is characterized in that
Including：
S21：Network server sends file download request bag to LORAWAN gateways；
S22：After LORAWAN gateways receive the file download request bag, answer file, which is downloaded, confirms packet to network server；
File to be downloaded is divided into several data packets by LORAWAN gateways；
S23：Network server is received after the file download confirms packet, network server create corresponding file for store from
The data packet that LORAWAN gateways receive；
S24：Transmission data packet is to network server one by one for LORAWAN gateways, until the file to be downloaded is sent.
7. the document transmission method according to claim 6 based on LORAWAN, which is characterized in that in the step S21,
File download request bag includes the filename of file to be downloaded.
8. the document transmission method according to claim 6 based on LORAWAN, which is characterized in that in the step S22,
File download confirms filename, file size and the file subpackage size for including file to be downloaded.
9. the document transmission method according to claim 6 based on LORAWAN, which is characterized in that in the step S24,
Transmission data packet is to network server one by one for LORAWAN gateways, until the method that the file to be downloaded is sent, including：
S241：Several data packets are divided into several batch data packets by LORAWAN gateways according to default every batch of number；
S242：LORAWAN gateways send data packet to network server by wholesale, until the file to be downloaded is sent.
10. the document transmission method according to claim 9 based on UDP, which is characterized in that in the step S242,
LORAWAN gateways send data packet to network server by wholesale, until the method that the file to be downloaded is sent, including：
S2421：LORAWAN gateways continuously transmit batch of data packet to network server；
S2422：LORAWAN gateways send batch data packet packet loss inquiry packet to network server；
S2423：Network server checks whether the data packet lost in the batch data packet, if it is not, then entering step
S2425, if so, entering step S2424；
S2424：Network server response loses data packet number in the batch data packet and data packet Bale No. extremely
LORAWAN gateways, LORAWAN gateways are retransmitted the data packet lost in the batch data packet to network server, are entered step
S2422；
S2425：Network server response does not lose data packet in the batch data packet to LORAWAN gateways, the inspection of LORAWAN gateways
Look into whether file to be downloaded is sent, if it is not, then entering step S2426；If so, enter step S2427；
S2426：LORAWAN gateways continuously transmit next group data packet to network server, enter step S2422；
S2427：LORAWAN gateways send the batch data packet packet loss inquiry that packet number is 0 and wrap to LORAWAN gateways, network service
Device response does not lose data packet in the batch data packet to LORAWAN gateways, and file to be downloaded is sent.
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| CN109067892A (en) * | 2018-08-22 | 2018-12-21 | 苏州凌犀物联网技术有限公司 | Big data transmission method, terminal and server in a kind of Lora communication system |
| CN109327525A (en) * | 2018-10-26 | 2019-02-12 | 浙江理工大学 | It is a kind of for being knitted the document transmission method and device of interconnection plane |
| WO2020199968A1 (en) * | 2019-03-29 | 2020-10-08 | 阿里巴巴集团控股有限公司 | Multicast communication method and system for communication network, multicast application server, and terminal |
| CN110198349A (en) * | 2019-05-27 | 2019-09-03 | 腾讯科技（深圳）有限公司 | Document transmission method and device, storage medium and electronic device |
| CN110492978A (en) * | 2019-08-13 | 2019-11-22 | 翱捷科技(深圳)有限公司 | A kind of LoRaWAN system and its implementation quickly confirmed |
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