CN108882253A - Long range wireless transmitting system and its communication means based on LoRa communication - Google Patents
Long range wireless transmitting system and its communication means based on LoRa communication Download PDFInfo
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- CN108882253A CN108882253A CN201810646778.8A CN201810646778A CN108882253A CN 108882253 A CN108882253 A CN 108882253A CN 201810646778 A CN201810646778 A CN 201810646778A CN 108882253 A CN108882253 A CN 108882253A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a kind of long range wireless transmitting system based on LoRa communication, including host control device, LoRa radio network gateway, multiple LoRa wireless relay and with multiple LoRa wireless relay multiple LoRa wireless terminal groups correspondingly；Each LoRa wireless terminal group has one or more LoRa wireless terminal, and one or more LoRa wireless terminal and affiliated LoRa wireless relay wirelessly communicate；Host control device and LoRa radio network gateway communicate to connect.The present invention also provides a kind of communication means of long range wireless transmitting system based on LoRa communication.Transmission range of the invention can reach 20Km or more, and transmission is reliable.
Description
Technical field
The present invention relates to the Internet of Things communication technologys communicated based on LoRa.
Background technique
With the high speed development of the state-of-the-art technologies such as various wireless communication techniques, sensor technology and computer technology, respectively
The intelligent radio Transmission system of kind various kinds emerges one after another.The one kind of LoRa as current mainstream low-consumption wireless transmission technology, tool
There is the characteristics of at low cost, low in energy consumption, long transmission distance.In general, the point-to-point transmission distance of LoRa is 5Km, distance is remoter opposite
Decaying it is more, signal-to-noise ratio is poorer.In order to increase transmission range, the amplifier reinforced sometimes using purely analog can be with
The LoRa wireless signal received is not passed through into debugging demodulation and directly amplifies signal, expanding transmission distance, but signal-to-noise ratio can be with
The increase of series passed through and it is more and more weaker.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of transmission range to be reliably based in 20Km or more, transmission
The long range wireless transmitting system of LoRa communication.
Another technical problem to be solved by this invention is to provide a kind of long range wireless transmission based on LoRa communication
The communication means of system.
According to one embodiment of present invention, a kind of long range wireless transmitting system based on LoRa communication, packet are provided
Include host control device, LoRa radio network gateway, multiple LoRa wireless relay and one-to-one with multiple LoRa wireless relay
Multiple LoRa wireless terminal groups；Each LoRa wireless terminal group has one or more LoRa wireless terminal, the one or more
LoRa wireless terminal and affiliated LoRa wireless relay wirelessly communicate；Host control device and LoRa radio network gateway communicate to connect.
According to another embodiment of the invention, a kind of long range wireless transmitting system based on LoRa communication is provided
Communication means includes the following steps：
Host control device issues assignment instructions to LoRa radio network gateway；
Received assignment instructions are converted to the assignment instructions message for meeting LoRa communication protocol and wide outward by LoRa radio network gateway
It broadcasts；
First order LoRa wireless relay carries out reception processing to the assignment instructions message that LoRa radio network gateway is sent, and judges that task refers to
Enable whether message is intended for the LoRa wireless terminal group corresponding to itself, if being intended for the LoRa wireless terminal corresponding to itself
Group then sends out data corresponding with first aim LoRa wireless terminal in assignment instructions message according to preset transmission sequence
First aim LoRa wireless terminal is given, after having sent assignment instructions message to first aim LoRa wireless terminal,
Working condition is switched to terminal feedback reception state, the task of first aim LoRa wireless terminal is waited to feed back message；
First LoRa wireless terminal executes corresponding according to the assignment instructions message that affiliated LoRa wireless relay is sent to oneself
Task, and broadcasted outward after generating task feedback message, it is current LoRa wirelessly whole that task, which feeds back the transmission source address in message,
The address at end；
First order LoRa wireless relay judges whether after receiving the task feedback message that first LoRa wireless terminal is sent
It also needs to send assignment instructions message to other LoRa wireless terminals, continue if necessary to next LoRa wireless terminal
It sends assignment instructions message and the task of next LoRa wireless terminal feedback is waited to feed back message, until completing to refer to task
All LoRa wireless terminals specified in message are enabled to send assignment instructions message, subsequent first order LoRa wireless relay is by all mesh
The data that mark LoRa wireless terminal is fed back are combined into frame task feedback message and broadcast outward, and working condition is switched to
Downlink transfer state；LoRa radio network gateway will be converted to from the task of first order LoRa wireless relay feedback message to be met
The task feedback information of level control device communication format is simultaneously sent to host control device；
If first order LoRa wireless relay judges that assignment instructions message is not intended for the LoRa wireless terminal group corresponding to itself,
Transmission source address in assignment instructions message is changed to broadcast assignment instructions message outward behind the address of itself, and by work shape
State is switched to uplink state；
The assignment instructions message that second level LoRa wireless relay sends first order LoRa wireless relay carries out reception processing, judgement
Whether assignment instructions message is intended for the LoRa wireless terminal group corresponding to itself, and so on；
Respectively the LoRa wireless relay in uplink state successively feeds back report to the task that next stage LoRa wireless relay is sent
Text carries out reception processing, the transmission source address of task feedback message is changed to behind the address of itself that task feedback message is wide outward
It broadcasts, and working condition is switched to downlink transfer state, until the outside broadcasting tasks of first order LoRa wireless relay feed back message,
And the working condition of itself is switched to downlink transfer state；The LoRa radio network gateway will from first order LoRa it is wireless in
After task feedback message be converted to and meet the task feedback information of host control device communication format and be sent to described
Host control device.
The present invention has at least the following advantages：
1, the long range wireless transmitting system according to an embodiment of the present invention based on LoRa communication uses LoRa wireless technology completely,
Transmission range is established in 20Km or more, even up to the long distance transmission network of 50Km, the network structure of the system can
Realize the covering of large area；
2, the long range wireless transmitting system combination according to an embodiment of the present invention based on LoRa communication will several times digital modelings realizations
Real-time control.Existing LoRa communication system is by LoRa wireless communication terminal active upload data, and in the present embodiment
In, it is that assignment instructions are issued by host control device, after being handled by corresponding LoRa wireless terminal for assignment instructions
After generation task feeds back message, host control device is returned to；
3, it is wireless that single antenna LoRa can be used in the long range wireless transmitting system according to an embodiment of the present invention based on LoRa communication
Gateway, single antenna LoRa wireless relay and single antenna LoRa wireless terminal are realized, to reduce implementation cost.
Detailed description of the invention
Fig. 1 shows the principle of one embodiment of the long range wireless transmitting system of the invention based on LoRa communication
Figure.
Fig. 2 shows the data biographies of one embodiment of the long range wireless transmitting system of the invention based on LoRa communication
Defeated schematic diagram.
Specific embodiment
Further explanation is made to the present invention with reference to the accompanying drawing.
Please refer to Fig. 1.A kind of long range wireless transmitting system based on LoRa communication according to an embodiment of the invention, packet
Include host control device 1, LoRa radio network gateway 2, multiple LoRa wireless relay 3 and a pair of with multiple LoRa wireless relay 3 one
The multiple LoRa wireless terminal groups 4 answered.Each LoRa wireless terminal group 4 has one or more LoRa wireless terminal 41, this one
A or multiple LoRa wireless terminals 41 are wirelessly communicated with affiliated LoRa wireless relay 3.Host control device 1 and LoRa wireless network
Close 2 communication connections.
Host control device 1 is used to issue assignment instructions to LoRa radio network gateway and receives LoRa radio network gateway 2 and sends
Task feedback information.In the present embodiment, host control device 1 is computer, which is connected to by Ethernet
LoRa radio network gateway 2.Above-mentioned assignment instructions it is common for example can be under a certain LoRa wireless relay 3 of instruction some or
The measurement data of acquisition is reported to computer or is a certain LoRa wireless relay 3 of instruction by certain several LoRa wireless terminal 41
Under some or certain several LoRa wireless terminals 41 execute certain motion actions (such as controlled valve etc.).Work as upper control
It, can be by appointing for different LoRa wireless terminal groups 4 when device 1 receives the task for different LoRa wireless terminal groups 4
Business is configured to different assignment instructions respectively, only the task data information taken for belonging to same LoRa wireless terminal group 4 to exist
In same assignment instructions.For example, if it is to obtain first that host control device 1, which is received from external task,
The data of first LoRa wireless terminal 41 of 4 subordinate of LoRa wireless terminal group and second 4 subordinate of LoRa wireless terminal group
Second LoRa wireless terminal 41 data, then host control device 1 can according to the task construct first task instruction and
Second assignment instructions, wherein first task instruction is that first LoRa of first 4 subordinate of LoRa wireless terminal group of acquisition is wireless
The data of terminal 41, the second assignment instructions are second LoRa wireless terminals for obtaining second 4 subordinate of LoRa wireless terminal group
41 data.
Received assignment instructions for being converted to the assignment instructions message for meeting LoRa communication protocol by LoRa radio network gateway 2
And it broadcasts outward, and meet host control device for being converted to from the task of first order LoRa wireless relay feedback message
The task feedback information of communication format.For being connected to the computer of LoRa radio network gateway 2 by Ethernet, then LoRa is wireless
Gateway 2 can will be converted to the meeting ethernet communication format of the task from the task of first order LoRa wireless relay feedback message
Feedback information.
In the present embodiment, LoRa radio network gateway 2 uses single antenna LoRa radio network gateway, and each LoRa wireless relay 3 uses
Single antenna LoRa wireless relay, each LoRa wireless terminal 41 use single antenna LoRa wireless terminal, and LoRa radio network gateway 2, institute
There is LoRa wireless relay 3 identical with the frequency range of all LoRa wireless terminals 41, is 433Mhz.In other embodiments,
Double antenna equipment can also be used in LoRa radio network gateway 2, LoRa wireless relay 3 and LoRa wireless terminal 41, and frequency range is also not necessarily limited to
433Mhz。
Please refer to Fig. 2.LoRa radio network gateway 2, can be with when receiving a plurality of assignment instructions that host control device is assigned
The mode of queue passes through LoRa one by one and is wirelessly transferred to rear class transmission, sends the nothing of LoRa radio network gateway 2 after assignment instructions message
Line end can enter data receiver mode, start next instruction transmission after receiving corresponding data, until queue empty.Appoint
The heading of business instruction message has the identifier 0x10 and task number of type of message, the data zone information of assignment instructions message
Address comprising address and its corresponding LoRa wireless relay as the target LoRa wireless terminal for receiving target.
By 2 transmitting message of LoRa radio network gateway to the direction of LoRa wireless terminal 41 be downlink transmission direction, by LoRa without
41 transmitting message of line terminal to the direction of LoRa radio network gateway 2 is uplink direction.Each LoRa wireless relay 3 is passed with uplink
Defeated state, downlink transfer state and terminal feedback reception state, and defaulting original operating state is downlink transfer state；Each LoRa
Wireless relay 3 is used to generate new message after message content performs corresponding processing based on the received and broadcast outward, and
And the working condition of itself is switched accordingly, the transmission source address in new message is the LoRa wireless relay itself
Address.
Each LoRa wireless terminal 41 is used to receive the message related with oneself of affiliated 3 broadcast of LoRa wireless relay, executes
It handles and is broadcasted outward after generating feedback message accordingly, feeding back the transmission source address in message is current LoRa wireless terminal
Address.Above-mentioned message related with oneself refers to that the reception destination address in the message that LoRa wireless relay 3 is broadcasted is to be somebody's turn to do
The address of LoRa wireless terminal 41.In the present embodiment, multiple LoRa wireless terminals 41 are formed with affiliated LoRa wireless relay 3
Star Network.
When each LoRa wireless relay 3 is in downlink transfer state, only to even higher level of node（The even higher level of node is to the first order
It is LoRa radio network gateway 2 for LoRa wireless relay, is a LoRa wireless relay for remaining LoRa wireless relay）It sends
Assignment instructions message carry out reception processing, judge even higher level of node send assignment instructions message whether be intended for itself institute it is right
The LoRa wireless terminal group answered：If so, according to preset transmission sequence by assignment instructions message with each target LoRa without
The corresponding data of line terminal are sent to each target LoRa wireless terminal frame by frame respectively, to first aim LoRa wireless terminal
After having sent assignment instructions message, working condition is switched to terminal feedback reception state, under terminal feedback reception state
Only in the report for receiving target LoRa wireless terminal feedback after having sent message to a target LoRa wireless terminal
Text after just to next target LoRa wireless terminal send message, by assignment instructions message specify all target LoRa without
The data that line terminal is fed back are combined into frame task feedback message and broadcast outward, and working condition is switched to downlink transfer
State；If it is not, the transmission source address in assignment instructions message is changed to behind the address of itself that assignment instructions message is wide outward
It broadcasts, and working condition is switched to uplink state；When each LoRa wireless relay 3 is in uplink state, only to next
The task feedback message that grade LoRa wireless relay 3 is sent carries out reception processing, and the transmission source address of task feedback message is changed to
Task feedback message is broadcasted outward behind the address of itself, and working condition is switched to downlink transfer state；
Each LoRa wireless terminal 41 is used to receive the assignment instructions message related with oneself of affiliated 3 broadcast of LoRa wireless relay,
It executes corresponding task and is broadcasted outward after generating task feedback message, the transmission source address that task is fed back in message is current
The address of LoRa wireless terminal.
For example, the address for the target LoRa wireless terminal in assignment instructions message that LoRa radio network gateway 2 transmits is
The address of No. 1 LoRa wireless terminal under second level LoRa wireless relay 3 and the address of No. 2 LoRa wireless terminals.The first order
Address and target LoRa wireless relay of the LoRa wireless relay 3 according to the target LoRa wireless terminal in the assignment instructions message
Address, it can be determined that go out the assignment instructions and be not intended for LoRa wireless terminal group 4 corresponding to itself, therefore, task is referred to
Task is referred to after enabling the transmission source address in message be changed to the address of first order LoRa wireless relay 3 by LoRa radio network gateway 2
It enables message broadcast outward, and working condition is switched to uplink state.Once being changed to uplink state, it is meant that this
The task feedback message that level-one LoRa wireless relay 3 can only send second level LoRa wireless relay 3 carries out reception processing.And locate
In the assignment instructions report that the second level LoRa wireless relay 3 of downlink transfer state can only send first order LoRa wireless relay 3
Text carries out reception processing, and second level LoRa wireless relay 3 judges that assignment instructions message is intended for the LoRa corresponding to itself
Wireless terminal group 4, then will be corresponding with each target LoRa wireless terminal in assignment instructions message according to preset transmission sequence
Data be sent to each target LoRa wireless terminal frame by frame respectively.In this example, preset transmission sequence be according to LoRa without
The sequence of the serial number of line terminal from small to large is sent.Therefore, it is wireless in first frame to be sent to LoRa for second level LoRa wireless relay 3
Reception destination address in the assignment instructions message of terminal is the address of No. 1 LoRa wireless terminal, and the data in message are also only
The relevant data with No. 1 LoRa wireless terminal.After having sent the frame assignment instructions message, second level LoRa wireless relay 3 will
Working condition is switched to terminal feedback reception state.After No. 1 LoRa wireless terminal 41 receives the frame assignment instructions message, it can hold
The corresponding task of row is simultaneously broadcasted after generating task feedback message outward, and it is 1 that task, which feeds back transmission source address in the heading of message,
The address of number LoRa wireless terminal.The heading that task feeds back message has the identifier 0x30 and task number of type of message.
Second level LoRa wireless relay 3 is sent out after the receiving No. 1 LoRa wireless terminal of the task feeds back message to No. 2 LoRa wireless terminals
The second frame message is sent, similar with above-mentioned process, later, No. 2 LoRa wireless terminals also can be to second level LoRa wireless relay 3
Transmission task feeds back message.Second level LoRa wireless relay 3 combines the data in received two frame tasks feedback message
Message is fed back at a frame task and is broadcasted outward, and working condition is switched to downlink transfer state.This newly synthesized frame is appointed
Transmission source address in business feedback message is the address of second level LoRa wireless relay 3.If assignment instructions message before
In specified task be to obtain No. 1 LoRa wireless terminal and No. 2 LoRa wireless terminal data collected, then new synthesis
This frame task feedback message in data field in can simultaneously include No. 1 LoRa wireless terminal and No. 2 LoRa wireless terminal institutes
The data of acquisition.After first order LoRa wireless relay receives the task feedback message of second level LoRa wireless relay transmission,
The transmission source address of task feedback message broadcasts task feedback message after being changed to the address of itself outward, and working condition is cut
It is changed to downlink transfer state.
Optionally, LoRa radio network gateway 2 is used for after one frame assignment instructions message of broadcast outward, if in the preset time
When not receiving the task feedback message of first order LoRa wireless relay transmission in T1, then sending to host control device 1 indicates the
The failure notification message of failure has occurred in level-one LoRa wireless relay, has first order LoRa in the data field of failure notification message
The fault data of wireless relay, T1, which is more than or equal to LoRa radio network gateway, to be played and receives when broadcast the frame assignment instructions message
The theoretical transmission times of task feedback message.Each LoRa wireless relay 3 is used to receive feedback shape in downlink transfer state or terminal
After broadcasting a frame assignment instructions message under state outward, if the task of next stage node transmission is not received in preset time T2
When feeding back message, then broadcast indicates that the task feedback message of failure has occurred in next stage node outward, and working condition is switched
For downlink transfer state, the transmission source address that task feeds back message is the address of the LoRa wireless relay 3, which feeds back message
Data field in have next stage node（LoRa wireless relay or LoRa wireless terminal）Fault data, T2 be more than or equal to LoRa
Wireless relay plays the theoretical transmission times for receiving task feedback message when the broadcasting tasks instruction message.
Above-mentioned T1 and T2 can be calculated according to the communication time between two nodes measured in advance and be obtained.When the communication
Between refer to a node to another node issue message at the time of to receive another node feeding back message at the time of between
Time interval（I.e. one has a try）.It is assumed that communication time between any two node is t, altogether there are four LoRa it is wireless in
After, and assignment instructions need the data of 3 LoRa wireless terminals of the last one relaying subordinate, then during second level LoRa is wireless
Playing when having broadcasted assignment instructions message and receiving the theoretical transmission times T2 of task feedback message is that 2t adds 3t, and 2t is
Communication time between second level LoRa wireless relay and the last one LoRa wireless relay, 3t are during the last one LoRa is wireless
Communication time between three LoRa wireless terminals.T for example can be 200ms.
According to another embodiment of the present invention, a kind of long range wireless transmitting system based on LoRa communication is additionally provided
Communication means includes the following steps：
Host control device 1 issues assignment instructions to LoRa radio network gateway 2；
Received assignment instructions are converted to the assignment instructions message for meeting LoRa communication protocol and wide outward by LoRa radio network gateway 2
It broadcasts；
The assignment instructions message that first order LoRa wireless relay 3 sends LoRa radio network gateway 2 carries out reception processing, judges task
Whether instruction message is intended for the LoRa wireless terminal group 4 corresponding to itself, if the LoRa being intended for corresponding to itself is wirelessly whole
End group 4, then will be corresponding with first aim LoRa wireless terminal 41 in assignment instructions message according to preset transmission sequence
Data are sent to first aim LoRa wireless terminal, are sending assignment instructions message to first aim LoRa wireless terminal
Later, working condition is switched to terminal feedback reception state, the task of first aim LoRa wireless terminal is waited to feed back report
Text；
First LoRa wireless terminal 41 executes corresponding according to the assignment instructions message that affiliated LoRa wireless relay is sent to oneself
Task, and generate task feedback message after broadcast outward, task feed back message in transmission source address be current LoRa it is wireless
The address of terminal；
First LoRa wireless relay judges whether after receiving the task feedback message of first order LoRa wireless terminal transmission
It also needs to send assignment instructions message to other LoRa wireless terminals, continue if necessary to next LoRa wireless terminal
It sends assignment instructions message and the task of next LoRa wireless terminal feedback is waited to feed back message, until completing to refer to task
All LoRa wireless terminals specified in message are enabled to send assignment instructions message, subsequent first order LoRa wireless relay 3 will own
The data that target LoRa wireless terminal is fed back are combined into frame task feedback message and broadcast outward, and working condition is switched
For downlink transfer state；LoRa radio network gateway 2 will be converted to symbol from the task of first order LoRa wireless relay feedback message
It closes the task feedback information of level control device communication format and is sent to host control device 1；
If first order LoRa wireless relay 3 judges that assignment instructions message is not intended for the LoRa wireless terminal group corresponding to itself,
Then the transmission source address in assignment instructions message is changed to broadcast assignment instructions message outward behind the address of itself, and by work
State is switched to uplink state；
The assignment instructions message that second level LoRa wireless relay sends first order LoRa wireless relay carries out reception processing, judgement
Whether assignment instructions message is intended for the LoRa wireless terminal group corresponding to itself, the course of work and first order LoRa it is wireless in
After the course of work it is similar, and so on；
Respectively the LoRa wireless relay in uplink state successively feeds back report to the task that next stage LoRa wireless relay is sent
Text carries out reception processing, the transmission source address of task feedback message is changed to behind the address of itself that task feedback message is wide outward
It broadcasts, and working condition is switched to downlink transfer state, until the outside broadcasting tasks of first order LoRa wireless relay feed back message,
And the working condition of itself is switched to downlink transfer state；LoRa radio network gateway 2 will be from first order LoRa wireless relay
Task feedback message be converted to the task feedback information for meeting host control device communication format and be sent to upper control dress
Set 1.
Long range wireless transmitting system according to an embodiment of the present invention based on LoRa communication uses the wireless skill of LoRa completely
Art establishes transmission range in 20Km or more, even up to the long distance transmission network of 50Km.
Claims (9)
1. it is a kind of based on LoRa communication long range wireless transmitting system, which is characterized in that including host control device, LoRa without
Gauze closes, multiple LoRa wireless relay and with the multiple LoRa wireless relay multiple LoRa wireless terminals correspondingly
Group；Each LoRa wireless terminal group has one or more LoRa wireless terminal, and one or more LoRa are wireless
Terminal and affiliated LoRa wireless relay wirelessly communicate；The host control device and the LoRa radio network gateway communicate to connect.
2. the long range wireless transmitting system as described in claim 1 based on LoRa communication, which is characterized in that wireless by LoRa
Gateway transmitting message to the direction of LoRa wireless terminal be downlink transmission direction, by LoRa wireless terminal transmission message to LoRa without
The direction that gauze closes is uplink direction；
Each LoRa wireless relay has uplink state, downlink transfer state and terminal feedback reception state, and defaults
Original operating state is downlink transfer state；Each LoRa wireless relay carries out corresponding for message content based on the received
New message is generated after processing and is broadcasted outward, and the working condition of itself is switched accordingly, in new message
Transmission source address is the address of the LoRa wireless relay itself；
Each LoRa wireless terminal is used to receive the message related with oneself of affiliated LoRa wireless relay broadcast, executes corresponding
Processing and generate feedback message after broadcast outward, feed back message in transmission source address be current LoRa wireless terminal ground
Location.
3. the long range wireless transmitting system according to claim 2 based on LoRa communication, which is characterized in that the LoRa
Radio network gateway is single antenna LoRa radio network gateway, and each LoRa wireless relay is single antenna LoRa wireless relay, each described
LoRa wireless terminal be single antenna LoRa wireless terminal, and LoRa radio network gateway, all LoRa wireless relay and all LoRa without
The frequency range of line terminal is identical；The host control device is used to issue assignment instructions to the LoRa radio network gateway and receive
The task feedback information that the LoRa radio network gateway is sent；The LoRa radio network gateway is used to turn the received assignment instructions
It is changed to the assignment instructions message for meeting LoRa communication protocol and broadcasts outward, and will be from first order LoRa wireless relay
Task feedback message is converted to the task feedback information for meeting host control device communication format；
When each LoRa wireless relay is in downlink transfer state, only the assignment instructions message that even higher level of node is sent is carried out
Reception processing, judges whether assignment instructions message that even higher level of node is sent is intended for the LoRa wireless terminal corresponding to itself
Group：If so, according to preset transmission sequentially by number corresponding with each target LoRa wireless terminal in assignment instructions message
According to each target LoRa wireless terminal is sent to frame by frame respectively, assignment instructions report is being sent to first aim LoRa wireless terminal
After text, working condition is switched to terminal feedback reception state, to a target LoRa under terminal feedback reception state
Wireless terminal has sent message later only after the message for receiving target LoRa wireless terminal feedback just to next
Target LoRa wireless terminal sends message, the number that all target LoRa wireless terminals specified in assignment instructions message are fed back
Message is fed back according to the frame task that is combined into and is broadcasted outward, and working condition is switched to downlink transfer state；If it is not, appointing
Transmission source address in business instruction message broadcasts assignment instructions message after being changed to the address of itself outward, and working condition is cut
It is changed to uplink state；When each LoRa wireless relay is in uplink state, only to next stage LoRa wireless relay
The task feedback message of transmission carries out reception processing, will appoint after the transmission source address of task feedback message is changed to the address of itself
Business feedback message is broadcasted outward, and working condition is switched to downlink transfer state；
Each LoRa wireless terminal is used to receive the assignment instructions message related with oneself of affiliated LoRa wireless relay broadcast, executes
Corresponding task is simultaneously broadcasted after generating task feedback message outward, task feed back the transmission source address in message be current LoRa without
The address of line terminal.
4. the long range wireless transmitting system as claimed in claim 3 based on LoRa communication, which is characterized in that the upper control
Device processed is used to that different assignment instructions will to be configured to respectively for the task of different LoRa wireless terminal groups, same will only belong to
The task data information taken of one LoRa wireless terminal group is in same assignment instructions.
5. as claimed in claim 3 based on LoRa communication long range wireless transmitting system, which is characterized in that the LoRa without
Gauze close for outward broadcast one frame assignment instructions message after, if do not received in preset time T1 first order LoRa without
When the task that line relaying is sent feeds back message, then sending to the host control device indicates that first order LoRa wireless relay occurs
The failure notification message of failure, T1 are more than or equal to LoRa radio network gateway and play reception when broadcast the frame assignment instructions message
To the theoretical transmission times of task feedback message；
Each LoRa wireless relay is used to broadcast a frame task outward in the case where downlink transfer state or terminal receive feedback states
It is wide outward if do not receive the task feedback message of next stage node transmission in preset time T2 after instruction message
Broadcasting indicates that the task feedback message of failure has occurred in next stage node, and working condition is switched to downlink transfer state, and T2 is big
The theoretical transmission times for receiving task feedback message are played when being equal to LoRa wireless relay from broadcasting tasks instruction message.
6. the long range wireless transmitting system as described in claim 1 based on LoRa communication, which is characterized in that the upper control
Device processed is computer.
7. the long range wireless transmitting system as described in claim 1 based on LoRa communication, which is characterized in that the multiple
LoRa wireless terminal and affiliated LoRa wireless relay form Star Network.
8. a kind of communication means of the long range wireless transmitting system as described in claim 1 based on LoRa communication, feature
It is, includes the following steps：
The host control device issues assignment instructions to the LoRa radio network gateway；
The received assignment instructions are converted to the assignment instructions message for meeting LoRa communication protocol by the LoRa radio network gateway
And it broadcasts outward；
First order LoRa wireless relay carries out reception processing to the assignment instructions message that LoRa radio network gateway is sent, and judges that task refers to
Enable whether message is intended for the LoRa wireless terminal group corresponding to itself, if being intended for the LoRa wireless terminal corresponding to itself
Group then sends out data corresponding with first aim LoRa wireless terminal in assignment instructions message according to preset transmission sequence
First aim LoRa wireless terminal is given, after having sent assignment instructions message to first aim LoRa wireless terminal,
Working condition is switched to terminal feedback reception state, the task of first aim LoRa wireless terminal is waited to feed back message；
First LoRa wireless terminal executes corresponding according to the assignment instructions message that affiliated LoRa wireless relay is sent to oneself
Task, and broadcasted outward after generating task feedback message, it is current LoRa wirelessly whole that task, which feeds back the transmission source address in message,
The address at end；
First order LoRa wireless relay judges whether after receiving the task feedback message that first LoRa wireless terminal is sent
It also needs to send assignment instructions message to other LoRa wireless terminals, continue if necessary to next LoRa wireless terminal
It sends assignment instructions message and the task of next LoRa wireless terminal feedback is waited to feed back message, until completing to refer to task
All LoRa wireless terminals specified in message are enabled to send assignment instructions message, subsequent first order LoRa wireless relay is by all mesh
The data that mark LoRa wireless terminal is fed back are combined into frame task feedback message and broadcast outward, and working condition is switched to
Downlink transfer state；The LoRa radio network gateway will be converted to symbol from the task of first order LoRa wireless relay feedback message
It closes the task feedback information of level control device communication format and is sent to the host control device；
If first order LoRa wireless relay judges that assignment instructions message is not intended for the LoRa wireless terminal group corresponding to itself,
Transmission source address in assignment instructions message is changed to broadcast assignment instructions message outward behind the address of itself, and by work shape
State is switched to uplink state；
The assignment instructions message that second level LoRa wireless relay sends first order LoRa wireless relay carries out reception processing, judgement
Whether assignment instructions message is intended for the LoRa wireless terminal group corresponding to itself, and so on；
Respectively the LoRa wireless relay in uplink state successively feeds back report to the task that next stage LoRa wireless relay is sent
Text carries out reception processing, the transmission source address of task feedback message is changed to behind the address of itself that task feedback message is wide outward
It broadcasts, and working condition is switched to downlink transfer state, until the outside broadcasting tasks of first order LoRa wireless relay feed back message,
And the working condition of itself is switched to downlink transfer state；The LoRa radio network gateway will from first order LoRa it is wireless in
After task feedback message be converted to and meet the task feedback information of host control device communication format and be sent to described
Host control device.
9. the communication means of the long range wireless transmitting system as claimed in claim 8 based on LoRa communication, which is characterized in that
The host control device will be configured to respectively different assignment instructions for the task of different LoRa wireless terminal groups, only will
Belong to the task data information taken of same LoRa wireless terminal group in same assignment instructions.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234089A (en) * | 2019-06-04 | 2019-09-13 | 苏州经贸职业技术学院 | A kind of wireless sensor network system and collecting method |
| CN111343688A (en) * | 2020-03-04 | 2020-06-26 | 珠海格力电器股份有限公司 | Relay communication method and device for wireless network, computer equipment and storage medium |
| CN111800841A (en) * | 2019-04-08 | 2020-10-20 | Oppo广东移动通信有限公司 | Relay function control method and related device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602728A (en) * | 2017-01-12 | 2017-04-26 | 合肥工业大学 | Distributed substation patrol system based on RFID and LoRa fusion network |
| CN107104722A (en) * | 2017-05-31 | 2017-08-29 | 国动物联网技术（上海）有限公司 | LoRaWAN complex transparent transmission relay implementation method |
| CN107911801A (en) * | 2017-10-26 | 2018-04-13 | 上海宏力达信息技术股份有限公司 | A kind of wireless communication system and method based on LoRa |
| CN107995634A (en) * | 2017-11-23 | 2018-05-04 | 武汉民大信息科技有限公司 | A kind of small-scale remote local area network system and its method of work based on LoRa |
| CN108184232A (en) * | 2018-01-23 | 2018-06-19 | 珠海派诺科技股份有限公司 | LORA wireless communications relay method, apparatus and system |
-
2018
- 2018-06-21 CN CN201810646778.8A patent/CN108882253B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602728A (en) * | 2017-01-12 | 2017-04-26 | 合肥工业大学 | Distributed substation patrol system based on RFID and LoRa fusion network |
| CN107104722A (en) * | 2017-05-31 | 2017-08-29 | 国动物联网技术（上海）有限公司 | LoRaWAN complex transparent transmission relay implementation method |
| CN107911801A (en) * | 2017-10-26 | 2018-04-13 | 上海宏力达信息技术股份有限公司 | A kind of wireless communication system and method based on LoRa |
| CN107995634A (en) * | 2017-11-23 | 2018-05-04 | 武汉民大信息科技有限公司 | A kind of small-scale remote local area network system and its method of work based on LoRa |
| CN108184232A (en) * | 2018-01-23 | 2018-06-19 | 珠海派诺科技股份有限公司 | LORA wireless communications relay method, apparatus and system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800841A (en) * | 2019-04-08 | 2020-10-20 | Oppo广东移动通信有限公司 | Relay function control method and related device |
| CN110234089A (en) * | 2019-06-04 | 2019-09-13 | 苏州经贸职业技术学院 | A kind of wireless sensor network system and collecting method |
| CN111343688A (en) * | 2020-03-04 | 2020-06-26 | 珠海格力电器股份有限公司 | Relay communication method and device for wireless network, computer equipment and storage medium |
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