CN107635254A - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN107635254A CN107635254A CN201710862593.6A CN201710862593A CN107635254A CN 107635254 A CN107635254 A CN 107635254A CN 201710862593 A CN201710862593 A CN 201710862593A CN 107635254 A CN107635254 A CN 107635254A
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Abstract
The embodiment of the present application provides a kind of data transmission method and device, and applied to the gateway device in the data transmission system based on LORA WAN, data transmission system also includes server and the multiple terminals being connected with gateway device；Method includes：The data for the multiple terminals synchronizations of needs that the reception server is sent；A terminal for meeting predetermined condition is selected from multiple terminals；The data are sent to selected terminal, so that selected terminal sends the data to the other-end in addition to selected terminal in multiple terminals.Using the embodiment of the present application, the time of downlink is taken when effectively reducing downlink transmission data, reduces the influence to business processing.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of data transmission method and device.
Background technology
LORA WAN (Long Range Wide Area Network, remote wide area network) are LPWAN (Low Power
WAN, low-power consumption wide area network) one kind, be a kind of overlength distance Radio Transmission Technology based on spread spectrum.LORA WAN have
The advantages that long transmission distance, ability through walls high, low in energy consumption, application is more and more wider.
But LORA WAN also have an inferior position, such as transmission rate is low etc..At present, LORA WAN data transmission system includes
Server, gateway device and terminal, there is 8 up-links and 1 downlink, i.e., sent out with 8 terminals to gateway device
The link of data and 1 gateway device is sent to send the link of data to terminal.When downlink transmission data, i.e., gateway device receives
When being handed down to the data of each terminal to server, the especially larger data of data volume, such as software version or configuration file,
Gateway device gives data distributing to each terminal by unique 1 downlink, because LORA WAN transmission rate is low, this
Downlink will be taken for a long time so that LORA WAN can not transmit other data for a long time.
The content of the invention
The purpose of the embodiment of the present application is to provide a kind of data transmission method and device, during reducing downlink transmission data
The time of downlink is taken, reduces the influence to business processing.Concrete technical scheme is as follows：
On the one hand, the embodiment of the present application discloses a kind of data transmission method, is passed applied to the data based on LORA WAN
Gateway device in defeated system, the data transmission system also include server and the multiple ends being connected with the gateway device
End；Methods described includes：
Receive the data for the multiple terminal synchronization of needs that the server is sent；
A terminal for meeting predetermined condition is selected from the multiple terminal；
The data are sent to selected terminal, so that selected terminal sends the data to the multiple end
Other-end in end in addition to selected terminal.
Two aspects, the embodiment of the present application disclose a kind of data transmission method, are passed applied to the data based on LORA WAN
Terminal in defeated system, the data transmission system also include server and the gateway device being connected with this terminal, the gateway
Equipment connects multiple terminals；Methods described includes：
Receive the data that the terminal of the gateway device or data accepted is sent；The data are the service
Device needs the synchronous data of the multiple terminal；
The terminal for not receiving the data into the multiple terminal sends the data.
Three aspects, the embodiment of the present application disclose a kind of data transmission device, the data transmission system applied to LORA WAN
Gateway device in system, the data transmission system also include server and the multiple terminals being connected with the gateway device；Institute
Stating device includes：
Receiving unit, the data of the multiple terminal synchronization of needs sent for receiving the server；
Selecting unit, for selecting a terminal for meeting predetermined condition from the multiple terminal；
Transmitting element, for sending the data to selected terminal, so that selected terminal sends out the data
Give the other-end in addition to selected terminal in the multiple terminal.
Four aspects, the embodiment of the present application disclose a kind of data transmission device, are passed applied to the data based on LORA WAN
Terminal in defeated system, the data transmission system also include server and the gateway device being connected with this terminal, the gateway
Equipment connects multiple terminals；Described device includes：
Receiving unit, the data that the terminal for receiving the gateway device or data accepted is sent；It is described
Data are that the server needs the synchronous data of the multiple terminal；
Transmitting element, the terminal for not receiving the data into the multiple terminal send the data.
Five aspects, the embodiment of the present application disclose a kind of gateway device, including processor and machinable medium, institute
Stating that machinable medium is stored with can be described by the machine-executable instruction of the computing device, the processor
Machine-executable instruction promotes：Realize the data transfer of the gateway device in the above-mentioned data transmission system applied to LORA WAN
Method.
Six aspects, the embodiment of the present application disclose a kind of terminal, including processor and machinable medium, the machine
Device readable storage medium storing program for executing is stored with can be by the machine-executable instruction of the computing device, and the processor is by the machine
Executable instruction promotes：Realize the data transmission method of the terminal in the above-mentioned data transmission system applied to LORA WAN.
Seven aspects, the embodiment of the present application disclose a kind of machinable medium, are stored with machine-executable instruction,
When being called and performed by processor, the machine-executable instruction promotes the processor：Realize and above-mentioned be applied to LORA WAN
Data transmission system in gateway device data transmission method.
Eight aspects, the embodiment of the present application disclose a kind of machinable medium, are stored with machine-executable instruction,
When being called and performed by processor, the machine-executable instruction promotes the processor：Realize and above-mentioned be applied to LORA WAN
Data transmission system in terminal data transmission method.
In the embodiment of the present application, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.Certainly, implementing any product of the application or method must be not necessarily required to reach above institute simultaneously
All advantages stated.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the data transmission system based on LORA WAN；
Fig. 2 is the first schematic flow sheet for the data transmission method that the embodiment of the present application provides；
A kind of schematic diagram for the data transfer based on data transmission system shown in Fig. 1 that Fig. 3 the embodiment of the present application provides；
Fig. 4 is second of schematic flow sheet of the data transmission method that the embodiment of the present application provides；
Fig. 5 is the first structural representation for the data transmission device that the embodiment of the present application provides；
Fig. 6 is second of structural representation of the data transmission device that the embodiment of the present application provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the application protection.
The data transmission system based on LORA WAN as shown in Figure 1, including server 101, gateway device 102 and multiple
Terminal 103-111.At present, when carrying out downlink data transmission, server 101 sends the data to gateway device 102, and gateway is set
Standby 102 are again transferred to data terminal 103-111 one by one.Because LORA WAN transmission rate is low, this will take for a long time
Unique 1 downlink of LORA WAN so that LORA WAN can not transmit other data for a long time, at traffic affecting
Reason.
The time of downlink is taken during in order to reduce downlink transmission data, the influence to business processing is reduced, according to base
In LORA WAN data transmission system, the embodiment of the present application provides a kind of data transmission method and data transmission device.
With reference to figure 2, Fig. 2 is the first schematic flow sheet for the data transmission method that the embodiment of the present application provides, and is applied to
Gateway device in data transmission system based on LORA WAN, the data transmission system also include server and and gateway device
Multiple terminals of connection；This method includes：
S201：The data for the multiple terminals synchronizations of needs that the reception server is sent；
S202：A terminal for meeting predetermined condition is selected from multiple terminals；
S203：Data are sent to selected terminal, are removed so that selected terminal is sent the data in multiple terminals
Other-end outside selected terminal.
During downlink transmission data, gateway device need to only send the data to a terminal, afterwards by receiving ends of data
End is responsible for completing data transfer, and the time for taking the downlink of gateway device and terminal room transfers data to for gateway device
The time of one terminal, the time of downlink is taken when effectively reducing downlink transmission data, is reduced to business processing
Influence.Here, transmit that the data volume of data is bigger, it is more to take the time of downlink when reducing downlink transmission data, reduces
The effect of influence to business processing is more obvious.
In the embodiment of the present application, in order to reduce the influence to regular traffic, the time of data transfer can be set in advance
Section, for example, evening 00:00-03:The business of 00 data transmission system processing is less, can set period of data transfer as
00:00-03:00。
If in advance be provided with data transfer period, outside the period of data transfer, data transmission system it is multiple
Terminal can use CLASS mode As, wherein, the terminal of CLASS mode As does not open reception window usually, it is necessary to uploads once
It could be opened after data and receive window reception data；Within the period of data transfer, multiple terminals of data transmission system are adopted
With CLASS C modes, wherein, the usually always on reception window reception data of terminal of CLASS C modes so can be effective
Reduction energy consumption, and ensure data transmission.
In one embodiment of the application, gateway device is in the multiple terminals synchronizations of needs for receiving server transmission
After data, in order to determine current online terminal, to multiple terminal broadcast synchronization notice message；Each receive synchronization notice
Synchronous response message of the terminal of message to gateway device feedback for synchronization notice message；Gateway device is receiving synchronous sound
After answering message, determine that the source terminal of synchronous response message is online, selected from the source terminal of the synchronous response message received
A terminal for meeting predetermined condition is selected, sends the data to the terminal of selection.
The terminal of above-mentioned non-feedback synchronization response message can be understood as that the terminal is offline or failure, in synchrodata
This Terminal Type can not be considered, or directly determine that this Terminal Type has been received by data.
In one embodiment of the application, the predetermined condition of above-mentioned gateway device selection terminal can be random selection,
A terminal is selected in the random source terminal from synchronous response message of gateway device.
In one embodiment of the application, in order to further reduce the time for taking downlink, above-mentioned predetermined condition
Can be the best terminal of selection link-quality, i.e. gateway device selects a link matter between gateway device from multiple terminals
Best terminal is measured, sends the data to the terminal of selection.Here, link-quality can be by the parameters such as distance and packet loss
One or more are weighed, and such as distance is nearer, and packet loss is lower, then link-quality is better, the optimal transmission speed that can be used
It is higher.Gateway device selection link-quality best one terminal, then the optimal transmission speed that can be used will highest, net
The terminal that equipment can sends the data to selection with most fast speed is closed, reduces the time for taking downlink.
In order to select best one terminal of link-quality between gateway device, in a kind of implementation, LORA WAN
In, the link-quality of gateway device and each terminal room link can be prestored in server, for example, server, gateway are set
Standby and multiple terminals arrange in advance, and the position relationship between each terminal and gateway device is fixed, i.e. terminal room
Distance, the distance between terminal and gateway device be it is fixed, can be with according to the position relationship between each terminal and gateway device
Calculate there emerged a the link-quality of link between terminal and gateway device, or gateway device is to before multiple terminal synchrodatas, can
By being communicated with multiple terminals, to predefine out the link-quality of gateway device and multiple terminal room links, and be recorded in clothes
It is engaged in device.In downlink transmission data, server by the link-quality of the gateway device prestored and each terminal room link,
And the data for needing to be synchronized to multiple terminals are sent to gateway device；
When gateway device receives the synchronous response message of terminal feedback, according to the gateway device of reception and each terminal
Between link link-quality, from the source terminal of the synchronous response message of reception, select gateway device between link link
Top-quality terminal.
Illustrated by taking Fig. 1 as an example, for example, gateway device 102 receive server 101 transmission gateway device 102 with
The link-quality of link between each terminal 103-111, and gateway device 102 receives the synchronization of the feedback of terminal 103,104,105
Response message, determine that terminal 103,104,105 is online, gateway device 102 and each terminal 103- of the gateway device 102 from reception
Link-quality corresponding to searching terminal 103,104,105 in the link-quality of 111 links, finds chain corresponding to terminal 103
Road quality a, link-quality b corresponding to terminal 104, link-quality c, a corresponding to terminal 105>b>C, by corresponding to link-quality a
The terminal best as the link-quality of 102 links of gateway device of terminal 103.
In order to select best one terminal of link-quality between gateway device, in a kind of implementation, link-quality
Quality can determine that signal intensity is stronger according to signal intensity, link-quality is better.Gateway device is receiving sync response
After message, from the source terminal of the synchronous response message of reception, signal intensity is most strong when selection receives synchronous response message
Terminal, using the most strong terminal of the signal intensity of the selection terminal best as the link-quality of link between gateway device.
Above-mentioned signal intensity can be according to RSSI (Received Signal Strength Indication, the letter of reception
The instruction of number intensity) evaluation.
Gateway device sends data in the terminal that have selected terminal backward selection, and the terminal selected by gateway device receives
After data, as the terminal of data accepted, into multiple terminals, the terminal of not received data sends data, and the process is can be with
What circulation performed.
In one embodiment of the application, the terminal selected by gateway device can be responsible for data syn-chronization to each removing
Other-end outside the terminal of the selection.By taking data transmission system shown in Fig. 1 as an example, the terminal selected by gateway device 102
For terminal 103；Terminal 103 selects a terminal from terminal 104-111, such as have selected terminal 104, sends the data to end
End 104；Afterwards, terminal 103 selects a terminal from terminal 105-111, such as have selected terminal 106, sends the data to
Terminal 106, by that analogy, until all terminal 103-111 receive data.
In another embodiment of the application, the terminal selected by gateway device is each removed in responsible give data syn-chronization
While other-end outside the terminal of the selection, the terminal of each data accepted can be assisted selected by gateway device
Terminal synchrodata, to ensure that data are quickly synchronized to each terminal.
Still by taking data transmission system shown in Fig. 1 as an example, gateway device 102 have selected terminal from multiple terminal 103-111
103, then terminal 103 is sent the data to, now, terminal selected by gateway device 102, is referred to as end of data accepted
Hold includes terminal 104-111 for terminal 103, the terminal of not received data；Terminal 103 selects an end from terminal 104-111
End, such as have selected terminal 104, then sends the data to terminal 104, now, the terminal of data accepted include terminal 103,
104, the terminal of not received data includes terminal 105-111；Terminal 103 selects a terminal, terminal from terminal 105-111
104 select a terminal from terminal 105-111, and as terminal 103 have selected terminal 105, terminal 104 have selected terminal 106, eventually
End 103 sends the data to terminal 105, and terminal 104 assists the synchrodata of terminal 103, sends the data to 106, now, connect
Receiving the terminal of data includes 103,104,105,106, and the terminal of not received data includes terminal 107-111, hereafter, with such
Push away, until all terminals receive data.
In the embodiment of the present application, transmit data when, as gateway device to terminal send data, the terminal of data accepted to
When the terminal of not received data sends data, if occurring packet loss during intermediate conveyor data, data transmission fails, data weight is carried out
Pass, until data transfer is completed.For example, when terminal 103 is to the transmission data of terminal 105, if there is packet loss, terminal 103 is again
Data are sent to terminal 105, until data are completely sent to terminal 105 by 103.
In order to ensure that terminal room can get the information that server or gateway device issue, each terminal works are identical
Channel, in this case, if the terminal of each data accepted can assist the terminal synchrodata selected by gateway device,
Disturbed when sending data simultaneously in order to avoid the terminal of at least two data accepteds, the terminal of data accepted is not to
Receive data terminal send data before, the channel of current idle is detected, by the idle channel that detects to not received data
Terminal send data.
Position between different terminals is different, and signal intensity is also different, and some terminal rooms possibly can not receive opposite end
Transmission signal, i.e., can not transmit data.In one embodiment of the application, this terminal receive gateway device or
After the terminal of data accepted sends data, as the terminal of data accepted, in order to determine it is can communicating, do not receive
The terminal of data, broadcast handshake information；Each terminal for receiving handshake information is not if it is determined that local receive data, then to
Receive handshake response message of the terminal feedback for handshake information of data；Each terminal for receiving handshake information is if it is determined that originally
Ground receives data, then the handshake response message of handshake information will not be directed to the terminal feedback of data accepted；Number is received
According to terminal after handshake response message is received, it is determined that be able to can be communicated with the source terminal of handshake response message,
And the source terminal of handshake response message does not receive data, one is selected from the source terminal of the handshake response message of reception
Meet the terminal of predetermined condition, data are sent to selected terminal；Selected by being sent the data to when the terminal of data accepted
After the terminal selected, the terminal of data accepted continues to broadcast handshake information, is used to indicate until receiving gateway device transmission
Stop transmission data synchronously completes message.
In order to ensure the quick transmission of data, in one embodiment of the application, the terminal selection of data accepted is eventually
The predetermined condition at end is the best terminal of selection link-quality, i.e., the terminal of data accepted from reception for handshake information
In the source terminal of handshake response message, the best terminal of link-quality is selected.So, the terminal can of data accepted with
When optimal transmission speed sends the data to the terminal of selection, it ensure that data are quickly transmitted.
In order to select with best one terminal of the terminal room link-quality of data accepted, in the reality of the application
Apply in example, the quality of link-quality can determine that signal intensity is stronger according to signal intensity, and link-quality is better.Number is received
According to terminal from the source terminal of the handshake response message of reception, selection receive handshake response message when signal intensity it is most strong
Terminal.So, when the terminal can of data accepted sends the data to the terminal of selection with optimal transmission speed, ensure that
Data are quickly transmitted.
In order to ensure that all terminals can receive data, in one embodiment of the application, a terminal is connecing
After receiving data, it directly can send one to gateway device and be transmitted message, or by sending data to the terminal
Terminal sends one to gateway device and is transmitted message；
The source terminal for being transmitted message is recorded as receiving data completion by gateway device；In addition, for the ease of service
Device management terminal, gateway device can will be transmitted message and be sent to server；Server will be transmitted the source of message
Terminal is recorded as receiving data completion；
Here, directly the terminal can be recorded as the terminal of above-mentioned non-feedback synchronization response message, gateway device
Receive data to complete, the information deletion of the terminal can also not considered further that the terminal.
After predetermined amount of time, it is not recorded as receiving the terminal that data are completed if still suffering from gateway device, it is determined that should
Terminal can not receive the data of other-end transmission, and gateway device is directly sent to the terminal for not being recorded as receiving data completion
Data.
Here, the length of predetermined amount of time can determine according to the quantity of terminal in data transmission system, data transfer
The quantity of terminal is more in system, and predetermined amount of time is longer.In the embodiment of the present application, if setting the time of data transfer in advance
Section, then the initial time of the period of the prior setting data transfer can be as the initial time of predetermined amount of time.
In order to avoid the wireless transmissions of inter-terminal data, the Internet resources of waste are reduced, when multiple terminals are registered as
When receiving data completion, gateway device synchronously completes message to multiple terminal broadcasts, and it is multiple for notifying that this synchronously completes message
Terminal data transmission has been completed；
Multiple terminals stop sending data after receiving and synchronously completing message.
It is above-mentioned synchronously complete message can be server it is determined that multiple terminals be registered as receive data complete at present
Issue gateway device, or gateway device it is determined that multiple terminals are registered as receiving when data are completed generates,
The embodiment of the present application is to this without limiting.
In the embodiment of the present application, PING-PONG patterns transmission data can be used when terminal room sends data.PING-
PONG patterns are a kind of mode of point-to-point transmission, and a terminal is transmitting terminal, and a kind of terminal is receiving terminal.
With reference to a kind of schematic diagram of the data transfer based on data transmission system shown in Fig. 1 shown in Fig. 3, to this Shen
Please embodiment provide data transmission method be explained.
1st, the data for needing terminal 103-111 synchronous are sent to gateway device 102 by server 101；
2nd, the broadcast synchronization notification message under default channel of gateway device 102；
If the terminal 103-111 the 3, under default channel have received synchronization notice message, terminal 103-111 bases respectively
Synchronization notice message is to the feedback synchronization response message of gateway device 102；
4th, gateway device 102 selects one between gateway device 102 from the source terminal 103-111 of synchronous response message
The best terminal of the link-quality of link, such as terminal 103；Gateway device 102 sends data to terminal 103；
If occurring packet loss during data are sent, gateway device 102 sends data to terminal 103 again, until
Data are sent to terminal 103.
5th, terminal 103 sends to gateway device 102 under default channel and is transmitted message 1；
6th, terminal 103 is recorded as reception data completion by gateway device 102 according to message 1 is transmitted；
7th, terminal 103 broadcasts handshake information 1 under default channel；
If the 8, terminal 104-110 have received handshake information 1, terminal 104-110 believes according to handshake information 1 in acquiescence respectively
Under road handshake response message 1 is fed back to terminal 103；
9th, terminal 103 selects a link between terminal 103 from the source terminal 104-110 of handshake response message 1
The best terminal of link-quality, such as terminal 104；Terminal 103 detects the channel 1 of free time, and notice terminal 104 uses channel 1
Data are transmitted, and channel 1 is switched to from default channel, data are sent to the terminal 104 for having been switched to channel 1 by channel 1；
If occurring packet loss during data are sent, terminal 103 sends data to terminal 104 again, until data
It is sent to terminal 104.
10th, terminal 104 sends to gateway device 102 under default channel and is transmitted message 2, or, terminal 104 is silent
Recognize to send to gateway device 102 by terminal 103 under channel and be transmitted message 2；
11st, terminal 104 is recorded as reception data completion by gateway device 102 according to message 2 is transmitted；
12nd, terminal 103 continues to broadcast handshake information 1 under default channel, and terminal 104 is broadcasted to shake hands under default channel to disappear
Breath 2；
If the 13, terminal 104-110 receives handshake information 1, terminal 104 has been received by data, will not be according to handshake information 1
Handshake response message 1 is fed back, terminal 105-110 feeds back sound of shaking hands under default channel according to handshake information 1 to terminal 103 respectively
Answer message 1；If terminal 103,105-109 receive handshake information 2, terminal 103 has been received by data, will not be according to handshake information
2 feedback handshake response message 2, terminal 105-109 shake hands according to handshake information 2 under default channel to the feedback of terminal 104 respectively
Response message 2；
14th, terminal 103 selects a link between terminal 103 from the source terminal 105-110 of handshake response message 1
The best terminal of link-quality, such as terminal 105；Terminal 103 detects the channel 1 of free time, and notice terminal 105 uses channel 1
Data are transmitted, and channel 1 is switched to from default channel, data are sent to the terminal 105 for having been switched to channel 1 by channel 1；
If occurring packet loss during data are sent, terminal 103 sends data to terminal 105 again, until data
It is sent to terminal 105.
Terminal 104 selects the chain of a link between terminal 106 from the source terminal 105-109 of handshake response message 2
The top-quality terminal in road, such as terminal 105；Terminal 104 detects the channel 2 of free time, and notice terminal 106 is passed using channel 2
Transmission of data, and channel 2 is switched to from default channel, data are sent to the terminal 106 for having been switched to channel 2 by channel 2；
If occurring packet loss during data are sent, terminal 104 sends data to terminal 106 again, until data
It is sent to terminal 106.
Here, terminal 103 and terminal 104 send data by different channels, avoid generation interference.
15th, terminal 105 sends to gateway device 102 under default channel and is transmitted message 3, or, terminal 105 is silent
Recognize to send to gateway device 102 by terminal 103 under channel and be transmitted message 3；
Terminal 106 sends to gateway device 102 under default channel and is transmitted message 4, or, terminal 106 is being given tacit consent to
Sent under channel by terminal 104 to gateway device 102 and be transmitted message 4；
16th, terminal 105 is recorded as reception data completion by gateway device 102 according to message 3 is transmitted；
Terminal 106 is recorded as reception data completion by gateway device 102 according to message 4 is transmitted；
17th, by that analogy, terminal 103-106 sends data with different channels to terminal 107-110 respectively, so that gateway
Terminal 107-110 is recorded as receiving data completion by equipment 102；
If the 18th, after a period of time, gateway device 102 detects that terminal 111 is not registered as also receiving data completion, to end
End 111 sends data；
19th, terminal 111 sends to gateway device 102 and is transmitted message 5；
Terminal 111 is recorded as reception data completion by 20 gateway devices 102 according to message 5 is transmitted；
21 gateway devices 102 determine that all terminals are registered as receiving data completion, the broadcast synchronization under default channel
Completion message；
22nd, terminal 103-111 stops sending data after receiving and synchronously completing message.
For example, terminal 103-111 is after receiving and synchronously completing message, handshake information of going off the air.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
Corresponding with the data transmission method embodiment applied to gateway device, the embodiment of the present application additionally provides a kind of application
In the data transmission method of terminal.With reference to figure 4, Fig. 4 is second of flow of the data transmission method that the embodiment of the present application provides
Schematic diagram, applied to the terminal in the data transmission system based on LORA WAN, the data transmission system can also include service
Device and the gateway device being connected with this terminal, gateway device connect multiple terminals；This method includes：
S401：Receive the data of the terminal transmission of gateway device or data accepted；The data are that server needs are more
The synchronous data of individual terminal；
S402：Into multiple terminals, the terminal of not received data sends data.
Data can be synchronously responsible for completion by terminal, and the time for taking the downlink of gateway device and terminal room can be with
It is decreased to the time that gateway device transfers data to a terminal, downlink be taken when effectively reducing downlink transmission data
Time, reduce the influence to business processing.
In one embodiment of the application, the terminal of the above-mentioned not received data into multiple terminals sends the step of data
Suddenly, can include：
Broadcast handshake information；
One, which is selected, from the source terminal for the handshake response message of handshake information of reception meets predetermined condition
Terminal；Handshake response message is that terminal is fed back in the case where not receiving data according to handshake information；
Data are sent to selected terminal, the step of performing broadcast handshake information are returned to, until receiving gateway device
What is sent synchronously completes message for instruction stopping transmission data.
In one embodiment of the application, the source of the above-mentioned handshake response message for handshake information from reception is whole
A step of terminal for meeting predetermined condition is selected in end, can include：
In source terminal corresponding to the handshake response message for handshake information from reception, selection receives handshake response and disappeared
The most strong terminal of signal intensity during breath.
In one embodiment of the application, this terminal is sent in the terminal for receiving gateway device or data accepted
After data, sent to gateway device and be transmitted message, or by sending data to the terminal of this terminal to gateway device
Transmission is transmitted message；So, this terminal is recorded as receiving data completion by gateway device, if existing after predetermined amount of time
Be not recorded as receive data complete terminal, gateway device to be not recorded as receive data complete terminal send data, and
Multiple terminals are registered as receiving broadcast synchronization completion message when data are completed.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
Corresponding with the data transmission method embodiment applied to gateway device, the embodiment of the present application additionally provides a kind of application
In the data transmission device of gateway device.With reference to figure 5, Fig. 5 is the first for the data transmission device that the embodiment of the present application provides
Structural representation, applied to the gateway device in the data transmission system based on LORA WAN, the data transmission system can be with
The multiple terminals being connected including server and with gateway device；The device includes：
Receiving unit 501, the data of the multiple terminals synchronizations of needs sent for the reception server；
Selecting unit 502, for selecting a terminal for meeting predetermined condition from multiple terminals；
Transmitting element 503, for sending data to selected terminal so that selected terminal send the data to it is more
Other-end in individual terminal in addition to selected terminal.
In one embodiment of the application, selecting unit 502, specifically it can be used for：
Broadcast synchronization notification message；
From the source terminal of the synchronous response message for synchronization notice message of reception, chain between selection and gateway device
The best terminal of the link-quality on road.
In one embodiment of the application, receiving unit 501, the gateway device of the reception server transmission can be also used for
With the link-quality of each terminal room link；
Selecting unit 502, specifically can be used for：
According to the gateway device of reception and the link-quality of each terminal room link, synchronization notice message is directed to from reception
Synchronous response message source terminal in, select the best terminal of link-quality link between gateway device.
In one embodiment of the application, selecting unit 502, specifically it can be used for：
From the source terminal of the synchronous response message for synchronization notice message of reception, selection receives sync response and disappeared
Signal intensity most strong terminal during breath, the link matter using the most strong terminal of the signal intensity of selection as link between gateway device
Measure best terminal.
In one embodiment of the application, above-mentioned data transmission device can also include：Recording unit and radio unit；
Receiving unit 501, it can be also used for reception and be transmitted message；It is transmitted message and is receiving data for terminal
Send afterwards；
Recording unit, for being recorded as the source terminal for being transmitted message to receive data completion；
Transmitting element 503, it is not recorded as receiving the terminal that data are completed if can be also used for existing after predetermined amount of time,
Data are sent to the terminal for not being recorded as receiving data completion；
Radio unit, for when multiple terminals be registered as receive data complete when, broadcast synchronization completion message so that
Receive the terminal stopping transmission data for synchronously completing message.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
Corresponding with the data transmission method embodiment applied to terminal, the embodiment of the present application additionally provides a kind of be applied to eventually
The data transmission device at end.With reference to figure 6, Fig. 6 is second of structural representation of the data transmission device that the embodiment of the present application provides
Figure, applied to the terminal in the data transmission system based on LORA WAN, the data transmission system can also include server and
The gateway device being connected with this terminal, gateway device connect multiple terminals；The device includes：
Receiving unit 601, the data that the terminal for receiving gateway device or data accepted is sent；Data are service
Device needs the synchronous data of multiple terminals；
Transmitting element 602, the terminal for the not received data into multiple terminals send data.
In one embodiment of the application, transmitting element 602, specifically it can be used for：
Broadcast handshake information；
One, which is selected, from the source terminal for the handshake response message of handshake information of reception meets predetermined condition
Terminal；Handshake response message is that terminal is fed back in the case where not receiving data according to handshake information；
Data are sent to selected terminal, the step of performing broadcast handshake information are returned to, until receiving gateway device
What is sent synchronously completes message for instruction stopping transmission data.
In one embodiment of the application, transmitting element 602, specifically it can be used for：
In source terminal corresponding to the handshake response message for handshake information from reception, selection receives handshake response and disappeared
The most strong terminal of signal intensity during breath.
In one embodiment of the application, transmitting element 602, it can be also used for：
Sent to gateway device and be transmitted message, or the terminal by sending data to this terminal is sent out to gateway device
Send and be transmitted message, so that this terminal is recorded as receiving data completion by gateway device, if existing not after predetermined amount of time
It is recorded as receiving the terminal that data are completed, gateway device sends data to the terminal for not being recorded as receiving data completion, and more
Individual terminal is registered as receiving broadcast synchronization completion message when data are completed.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
With the data transmission method embodiment pair applied to the gateway device in the data transmission system based on LORA WAN
Should, the embodiment of the present application provides a kind of gateway device, including processor and machinable medium, and machine readable storage is situated between
Matter is stored with the machine-executable instruction that can be executed by processor, and processor promotes realization to be applied to by machine-executable instruction
The data transmission method of gateway device in LORA WAN data transmission system.Wherein, data transmission system also includes service
Device and the multiple terminals being connected with gateway device；The data transmission method includes：
The data for the multiple terminals synchronizations of needs that the reception server is sent；
A terminal for meeting predetermined condition is selected from multiple terminals；
The data are sent to selected terminal, so that selected terminal, which is sent the data to, removes institute in multiple terminals
Other-end outside the terminal of selection.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
It is corresponding with the data transmission method embodiment applied to the terminal in the data transmission system based on LORA WAN, this
Application embodiment provides a kind of terminal, including processor and machinable medium, machinable medium are stored with
The machine-executable instruction that can be executed by processor, processor promotes to realize by machine-executable instruction is applied to LORA WAN
Data transmission system in terminal data transmission method.Wherein, data transmission system also include server and with this terminal
The gateway device of connection, gateway device connect multiple terminals；The data transmission method includes：
Receive the data of the terminal transmission of gateway device or data accepted；Data are that server needs multiple terminals same
The data of step；
Into multiple terminals, the terminal of not received data sends data.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
With the data transmission method embodiment pair applied to the gateway device in the data transmission system based on LORA WAN
Should, the embodiment of the present application provides a kind of machinable medium, is stored with machine-executable instruction, is called by processor
During with performing, machine-executable instruction promotes processor to realize the gateway device in the data transmission system applied to LORA WAN
Data transmission method.Wherein, data transmission system also includes server and the multiple terminals being connected with gateway device；The data
Transmission method includes：
The data for the multiple terminals synchronizations of needs that the reception server is sent；
A terminal for meeting predetermined condition is selected from multiple terminals；
The data are sent to selected terminal, so that selected terminal, which is sent the data to, removes institute in multiple terminals
Other-end outside the terminal of selection.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
It is corresponding with the data transmission method embodiment applied to the terminal in the data transmission system based on LORA WAN, this
Application embodiment provides a kind of machinable medium, is stored with machine-executable instruction, is being called and is being held by processor
During row, machine-executable instruction promotes processor to realize that the data of the terminal in the data transmission system applied to LORA WAN pass
Transmission method.Wherein, data transmission system also includes server and the gateway device being connected with this terminal, and gateway device connection is multiple
Terminal；The data transmission method includes：
Receive the data of the terminal transmission of gateway device or data accepted；Data are that server needs multiple terminals same
The data of step；
Into multiple terminals, the terminal of not received data sends data.
Using above-described embodiment, the data for needing multiple terminals in data transmission system synchronous are sent to net by server
After closing equipment, gateway device selects a terminal for meeting predetermined condition from this multiple terminal, sends the data to selected
The terminal selected, afterwards, the transmission of data are completed by selected terminal.It can be seen that in the embodiment of the present application, gateway device need not be straight
Connect and send the data to each terminal, only need to send the data to a terminal, complete to pass by the terminal for receiving data afterwards
Transmission of data, the time for taking the downlink of gateway device and terminal room are reduced to from the time for transferring data to all terminals
The time of terminal is transferred data to, the time of downlink is taken when effectively reducing downlink transmission data, is reduced
Influence to business processing.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Each embodiment in this specification is described by the way of related, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Passed especially for data
For defeated device, gateway device, terminal, machinable medium embodiment, because it is substantially similar to data transmission method
Embodiment, description it is fairly simple, related part illustrates referring to the part of data transmission method embodiment.
The preferred embodiment of the application is the foregoing is only, is not intended to limit the protection domain of the application.It is all
Any modification, equivalent substitution and improvements made within spirit herein and principle etc., it is all contained in the protection domain of the application
It is interior.
Claims (18)
1. a kind of data transmission method, it is characterised in that applied to the data transmission system based on remote wide area network LORA WAN
Gateway device in system, the data transmission system also include server and the multiple terminals being connected with the gateway device；Institute
The method of stating includes：
Receive the data for the multiple terminal synchronization of needs that the server is sent；
A terminal for meeting predetermined condition is selected from the multiple terminal；
The data are sent to selected terminal, so that selected terminal is sent the data in the multiple terminal
Other-end in addition to selected terminal.
2. data transmission method according to claim 1, it is characterised in that described that one is selected from the multiple terminal
The step of meeting the terminal of predetermined condition, including：
Broadcast synchronization notification message；
From the source terminal of the synchronous response message for synchronization notice message of reception, chain between selection and the gateway device
The best terminal of the link-quality on road.
3. data transmission method according to claim 2, it is characterised in that methods described also includes：
Receive the link-quality of the gateway device and each terminal room link that the server is sent；
It is described from the source terminal of the synchronous response message for synchronization notice message of reception, selection with the gateway device
Between link link-quality best terminal the step of, including：
According to the gateway device of reception and the link-quality of each terminal room link, synchronization notice message is directed to from reception
Synchronous response message source terminal in, select the best terminal of link-quality link between the gateway device.
4. data transmission method according to claim 2, it is characterised in that described to be directed to synchronization notice message from reception
Synchronous response message source terminal in, select the step the best terminal of link-quality of link between the gateway device
Suddenly, including：
From the source terminal of the synchronous response message for synchronization notice message of reception, when selection receives synchronous response message
The most strong terminal of signal intensity, the link matter using the most strong terminal of the signal intensity of selection as link between the gateway device
Measure best terminal.
5. data transmission method according to claim 1, it is characterised in that methods described also includes：
Reception is transmitted message；It is described to be transmitted what message was sent after receiving the data for terminal；
The source terminal for being transmitted message is recorded as to receive data completion；
It is not recorded as receiving the terminal that data are completed if after predetermined amount of time existing, to the end for not being recorded as receiving data completion
End sends the data；
When the multiple terminal is registered as receiving data completion, broadcast synchronization completion message, so as to receive described same
The terminal for walking completion message stops sending the data.
6. a kind of data transmission method, it is characterised in that applied to the data transmission system based on remote wide area network LORA WAN
Terminal in system, the data transmission system also include server and the gateway device being connected with this terminal, the gateway device
Connect multiple terminals；Methods described includes：
Receive the data that the terminal of the gateway device or data accepted is sent；The data need for the server
Want the synchronous data of the multiple terminal；
The terminal for not receiving the data into the multiple terminal sends the data.
7. data transmission method according to claim 6, it is characterised in that described not receive institute into the multiple terminal
The step of stating the terminal transmission data of data, including：
Broadcast handshake information；
A terminal for meeting predetermined condition is selected from the source terminal for the handshake response message of handshake information of reception；
The handshake response message is that terminal is fed back in the case where not receiving the data according to handshake information；
The data are sent to selected terminal, return to the step of performing the broadcast handshake information, until receiving described
What gateway device was sent synchronously completes message for the instruction stopping transmission data.
8. data transmission method according to claim 7, it is characterised in that the holding for handshake information from reception
A step of terminal for meeting predetermined condition is selected in the source terminal of hand response message, including：
In source terminal corresponding to the handshake response message for handshake information from reception, when selection receives handshake response message
The most strong terminal of signal intensity.
9. data transmission method according to claim 7, it is characterised in that methods described also includes：
Sent to the gateway device and be transmitted message, or by sending terminal of the data to this terminal to the net
Close equipment transmission and be transmitted message, so that this terminal is recorded as receiving data completion by the gateway device, if in pre- timing
Between exist after section and be not recorded as receiving the terminal that data are completed, the gateway device is to the terminal for not being recorded as receiving data and completing
The data are sent, and is registered as receiving when data are completed in the multiple terminal and synchronously completes message described in broadcast.
10. a kind of data transmission device, it is characterised in that applied to the data transmission system based on remote wide area network LORA WAN
Gateway device in system, the data transmission system also include server and the multiple terminals being connected with the gateway device；Institute
Stating device includes：
Receiving unit, the data of the multiple terminal synchronization of needs sent for receiving the server；
Selecting unit, for selecting a terminal for meeting predetermined condition from the multiple terminal；
Transmitting element, for sending the data to selected terminal, so that selected terminal is sent the data to
Other-end in the multiple terminal in addition to selected terminal.
11. data transmission device according to claim 10, it is characterised in that the selecting unit, be specifically used for：
Broadcast synchronization notification message；
From the source terminal of the synchronous response message for synchronization notice message of reception, chain between selection and the gateway device
The best terminal of the link-quality on road.
12. data transmission device according to claim 11, it is characterised in that the receiving unit, be additionally operable to receive institute
State the link-quality of the gateway device and each terminal room link of server transmission；
The selecting unit, is specifically used for：
According to the gateway device of reception and the link-quality of each terminal room link, synchronization notice message is directed to from reception
Synchronous response message source terminal in, select the best terminal of link-quality link between the gateway device.
13. data transmission device according to claim 11, it is characterised in that the selecting unit, be specifically used for：
From the source terminal of the synchronous response message for synchronization notice message of reception, when selection receives synchronous response message
The most strong terminal of signal intensity, the link matter using the most strong terminal of the signal intensity of selection as link between the gateway device
Measure best terminal.
14. data transmission device according to claim 10, it is characterised in that described device also includes：Recording unit and
Radio unit；
The receiving unit, it is additionally operable to reception and is transmitted message；The message that is transmitted is receiving the number for terminal
According to rear transmission；
The recording unit, for being recorded as the source terminal for being transmitted message to receive data completion；
The transmitting element, it is not recorded as receiving the terminal that data are completed, Xiang Weiji if being additionally operable to exist after predetermined amount of time
Record the terminal completed to receive data and send the data；
The radio unit, for when the multiple terminal be registered as receive data complete when, broadcast synchronization completion message,
Stop sending the data so as to receive the terminal for synchronously completing message.
15. a kind of data transmission device, it is characterised in that applied to the data transmission system based on remote wide area network LORA WAN
Terminal in system, the data transmission system also include server and the gateway device being connected with this terminal, the gateway device
Connect multiple terminals；Described device includes：
Receiving unit, the data that the terminal for receiving the gateway device or data accepted is sent；The data
The synchronous data of the multiple terminal are needed for the server；
Transmitting element, the terminal for not receiving the data into the multiple terminal send the data.
16. data transmission device according to claim 15, it is characterised in that the transmitting element, be specifically used for：
Broadcast handshake information；
A terminal for meeting predetermined condition is selected from the source terminal for the handshake response message of handshake information of reception；
The handshake response message is that terminal is fed back in the case where not receiving the data according to handshake information；
The data are sent to selected terminal, return to the step of performing the broadcast handshake information, until receiving described
What gateway device was sent synchronously completes message for the instruction stopping transmission data.
17. data transmission device according to claim 16, it is characterised in that the transmitting element, be specifically used for：
In source terminal corresponding to the handshake response message for handshake information from reception, when selection receives handshake response message
The most strong terminal of signal intensity.
18. data transmission device according to claim 16, it is characterised in that the transmitting element, be additionally operable to：
Sent to the gateway device and be transmitted message, or by sending terminal of the data to this terminal to the net
Close equipment transmission and be transmitted message, so that this terminal is recorded as receiving data completion by the gateway device, if in pre- timing
Between exist after section and be not recorded as receiving the terminal that data are completed, the gateway device is to the terminal for not being recorded as receiving data and completing
The data are sent, and is registered as receiving when data are completed in the multiple terminal and synchronously completes message described in broadcast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710862593.6A CN107635254A (en) | 2017-09-22 | 2017-09-22 | A kind of data transmission method and device |
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| CN201710862593.6A CN107635254A (en) | 2017-09-22 | 2017-09-22 | A kind of data transmission method and device |
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Application publication date: 20180126 |