CN110062433A - A kind of LoRa recurrent network of low-power consumption - Google Patents
A kind of LoRa recurrent network of low-power consumption Download PDFInfo
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- CN110062433A CN110062433A CN201910317801.3A CN201910317801A CN110062433A CN 110062433 A CN110062433 A CN 110062433A CN 201910317801 A CN201910317801 A CN 201910317801A CN 110062433 A CN110062433 A CN 110062433A
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- node
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
-
- 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 proposes a kind of LoRa recurrent networks of low-power consumption, and including the chain network that gateway and several LoRa nodes are formed, and each node is only communicated with adjacent node, only adjacent with gateway node and gateway communication.The present invention passes through the LoRa recurrent network of low-power consumption, and node only needs to communicate with node at one's side, and network topology is simple；A single channel gateway is only needed, the acquisition of the far network data of physical distance is completed, and is easily extended, has new demand directly can increase node in end, is not necessarily to additional act.
Description
Technical field
The present invention relates to a kind of LoRa recurrent networks of low-power consumption.
Background technique
Under the such environment in tunnel, the arrangement of each node of Lora is linear.Due to very long, the ring of tunnel both ends distance
Border is not spacious, and the transmission range of LoRa is limited, and among tunnel the connection such as typically no 4G outer net signal, so can not be by net
Pass is arranged among tunnel.A traditional gateway, which adds a Star Network for low-power consumption LoRa node, can not cover all sections
Point.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of LoRa recurrent network of low-power consumption, passes through the LoRa of low-power consumption
Recurrent network, node only need to communicate with node at one's side, and network topology is simple；A single channel gateway is only needed, physics is completed
Acquisition apart from far network data, and easily extend, there is new demand directly can increase node in end, without additional
Movement.
The technical scheme of the present invention is realized as follows:
A kind of LoRa recurrent network of low-power consumption, including the chain network that gateway and several LoRa nodes are formed, and often
A node is only communicated with adjacent node, only adjacent with gateway node and gateway communication.
Preferably, each node distributes two time windows, and two time windows are continuous time of intercept window and uplink time
Window, and time of intercept window and the time window of upload are overlapped between two neighboring node；The time of intercept window receives superior node
Node data, the uplink time window send the node data of the same level node to downstream site.
Preferably, node carries out data communication in wake-up states in time window, remaining time is in sleep state；And
The data of downstream site upload are listened in time of intercept window, node data is uploaded to superior node in uplink time window, this
The each node of sample can only realize the successively upload of data with the time for waking up two time windows.
Preferably, it being communicated between adjacent node using answer-mode, i.e., data will receive a response after sending,
If not receiving response, just retransmit；When a node failure, its next stage node is retried through predetermined time to be still not able to
Responded, suspend mode to he top-ranking's node time of intercept window, then start data transmission.
Preferably, node data uses the mode of lump frame: when data upload, most end end node sends the data of oneself
To secondary endpoint node, data itself is added again for secondary endpoint node, then the data of two nodes are all sent to supervisory node,
It circuits sequentially, guarantees that the data for reaching gateway include all information；It when instruction issues, transmits step by step, node is in instruction heap
It is executed instruction after finding the instruction for belonging to this node, and the instruction is removed from instruction heap, be then passed to next stage, instruct number
According to shorter and shorter, guarantee that each node will not miss the instruction to oneself.
Preferably, it when Node registers, not directly to gateway requests, but is requested to adjacent supervisory node, obtains this
The time window and other parameters information of node and the node configuration information of oneself all junior.
Preferably, it is synchronous that time delays are carried out between each adjacent node, the method for synchronization are as follows: when the initial local of superior node
Between be T1, the local zone time after standard frame once sends and receives between adjacent node is T2, sheet when sending time delay is synchronous
The ground time is T3, then the local zone time T1 of superior node is set as synchronous with the time T0=[T3+ (T2-T1/2)] of downstream site
Time.
For the present invention the beneficial effects are as follows: the present invention is low in energy consumption, battery power supply is can be used in node, does not have to cabling, section
The point most of the time is in sleep state, only wakes up in the time window of oneself, and in addition to most end end node, node is used as relaying,
Also it is acquired as data and uses node, be not constantly in the relay node that wake-up states need external power supply in system.Star-like
In network, to consider off-network close farthest node also can normal communication, the baud rate certainty very little selected in this way, sending time is long,
The power consumption of whole system rises, and the present invention passes through the position of reasonable Arrangement node, can allow the distance of average two nodes compared with
It is small, it can be carried out data transmission in this way using higher baud rate, reduce transmitting receiving time, reduce power consumption.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of chain network of the present invention.
Time window of the Fig. 2 between node of the present invention distributes schematic diagram.
Fig. 3 is the schematic diagram that node data of the present invention uploads.
Fig. 4 is the schematic diagram of node instruction data distributing of the present invention.
Fig. 5 is the synchronous schematic diagram of time delays.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
A kind of LoRa recurrent network of low-power consumption as shown in Figure 1, the chain formed including gateway and several LoRa nodes
Network, and each node is only communicated with adjacent node, only adjacent with gateway node and gateway communication.Each section in network
The LoRa parameter of point is identical, can communicate with each other, network topology is relatively simple, and is easy to extend, and has new demand can
Directly to increase node in end.
As shown in Fig. 2, each node distributes two time windows, and two time windows are continuous by the way of time-sharing multiplex
Time of intercept window and uplink time window, and time of intercept window and the time window of upload are overlapped between two neighboring node；It is described to detect
Time window is listened to receive the node data of superior node, node data to the junior that the uplink time window sends the same level node saves
Point.
Battery power supply can be used in node, does not have to cabling, and node carries out data communication in wake-up states in time window,
Remaining time is in sleep state；And the data of downstream site upload are listened in time of intercept window, it will be saved in uplink time window
Point data is uploaded to superior node, and node each so only can realize data successively with the time for waking up two time windows
It uploads.It is communicated between adjacent node using answer-mode, i.e., data will receive a response after sending, if do not received
To response, just retransmit；For the robustness of lifting system, avoid a node failure that transfer chain is caused to be broken, when a node
When failure, its next stage node retries through predetermined time and is still not able to be responded, and suspend mode to his top-ranking's node is detectd
Time window is listened, then starts data transmission.The node most of the time is in sleep state, only wakes up in the time window of oneself.It removes
Outside most end end node, node also uses node as data acquisition i.e. as relaying.
5. node carries out data acquisition in transmission cycle integral point, the time window at oneself carries out data communication, other times
In sleep state, power consumption is reduced.Be not constantly in system wake-up states need external power supply after node.By reasonable
The position for arranging node can allow the distance of average two nodes smaller, can carry out data using higher baud rate in this way
Transmission, reduces transmitting receiving time, equally reduces power consumption.And in Star Network, to consider that off-network closes farthest node
Also can normal communication, the baud rate certainty very little selected in this way, sending time is long, and the power consumption of whole system rises.
As shown in Figure 3-4, node data uses the mode of lump frame: when data upload, most end end node is by the number of oneself
According to time endpoint node is sent to, data itself is added again for secondary endpoint node, then the data of two nodes are all sent to higher level
Node, circuit sequentially, guarantee reach gateway data include all information；When instruction issues, transmit step by step, node is referring to
It enables and being executed instruction after finding the instruction for belonging to this node in heap, and the instruction is removed from instruction heap, be then passed to next stage,
Director data is shorter and shorter, guarantees that each node will not miss the instruction to oneself.
As shown in figure 5, not directly to gateway requests, but requesting, obtaining to adjacent supervisory node when Node registers
The time window and other parameters information of this node and the node configuration information of oneself all junior.Due to the normal fortune of system
Make Time-Dependent window, in order to guarantee that time consistency and the transmission of time window separate data of signal acquisition do not collide, so needing
Carry out time synchronization.
Due to the delay that signal sends and receives, if directly will cause certain deviation with the time of a node,
So first to measure two nodes once sends and receives delay, the synchronization of time is carried out after correction time again (for mode number
According to length it is inconsistent caused by be delayed different, frame is equal in length in figure).It is same that time delays are carried out between each adjacent node
Step, the method for synchronization are as follows: the initial local zone time of superior node is T1, the sheet after standard frame once sends and receives between adjacent node
The ground time is T2, and local zone time when sending time delay is synchronous is T3, then the local zone time T1 and downstream site of superior node
Time T0=[T3+ (T2-T1/2)] be set as synchronization time, start corresponding node in the corresponding time, can effectively protect
Demonstrate,prove the transmission of data.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of LoRa recurrent network of low-power consumption, which is characterized in that the chain formed including gateway and several LoRa nodes
Network, and each node is only communicated with adjacent node, only adjacent with gateway node and gateway communication.
2. a kind of LoRa recurrent network of low-power consumption as described in claim 1, which is characterized in that when each node distributes two
Between window, two time windows are continuous time of intercept window and uplink time window, and time of intercept window and upper between two neighboring node
The time window of biography is overlapped；The time of intercept window receives the node data of superior node, and the uplink time window sends the same level section
The node data of point is to downstream site.
3. a kind of LoRa recurrent network of low-power consumption as claimed in claim 2, which is characterized in that node is in time window
Wake-up states carry out data communication, remaining time is in sleep state；And downstream site upload is listened in time of intercept window
Node data is uploaded to superior node in uplink time window by data, node each so only with wake up two time windows when
Between can realize the successively uploads of data.
4. a kind of LoRa recurrent network of low-power consumption as claimed in claim 3, which is characterized in that used between adjacent node
Answer-mode is communicated, i.e., data will receive a response after sending, if not receiving response, is just retransmitted；It is saved when one
When point failure, its next stage node retries through predetermined time and is still not able to be responded, top-ranking node of the suspend mode to him
Time of intercept window, then start data transmission.
5. a kind of LoRa recurrent network of low-power consumption as claimed in claim 2, which is characterized in that node data uses lump frame
Mode: when data upload, the data of oneself are sent to time endpoint node by most end end node, and secondary endpoint node again counts itself
It is all sent to supervisory node according to addition, then the data of two nodes, is circuited sequentially, guarantees that the data for reaching gateway include institute
Some information；When instruction issues, transmitting step by step, node executes instruction after finding the instruction for belonging to this node in instruction heap, and
The instruction is removed from instruction heap, is then passed to next stage, director data is shorter and shorter, guarantees that each node will not miss
Instruction to oneself.
6. a kind of LoRa recurrent network of low-power consumption as claimed in claim 2, which is characterized in that when Node registers, not directly
It to gateway requests, but is requested to adjacent supervisory node, obtains the time window and other parameters information of this node, Yi Jisuo
There is the node configuration information of oneself junior.
7. a kind of LoRa recurrent network of low-power consumption as claimed in claim 6, which is characterized in that carried out between each adjacent node
Time delays are synchronous, the method for synchronization are as follows: the initial local zone time of superior node is T1, between adjacent node standard frame once sends with
Local zone time after reception is T2, and local zone time when sending time delay is synchronous is T3, then the local zone time T1 of superior node
Synchronization time is set as with the time T0=[T3+ (T2-T1/2)] of downstream site.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317801.3A CN110062433A (en) | 2019-04-19 | 2019-04-19 | A kind of LoRa recurrent network of low-power consumption |
| CN201910681767.8A CN111836332A (en) | 2019-04-19 | 2019-07-26 | Lora chain network communication method, Lora gateway and Lora chain network communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910317801.3A CN110062433A (en) | 2019-04-19 | 2019-04-19 | A kind of LoRa recurrent network of low-power consumption |
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| CN110062433A true CN110062433A (en) | 2019-07-26 |
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| CN201910317801.3A Withdrawn CN110062433A (en) | 2019-04-19 | 2019-04-19 | A kind of LoRa recurrent network of low-power consumption |
| CN201910681767.8A Pending CN111836332A (en) | 2019-04-19 | 2019-07-26 | Lora chain network communication method, Lora gateway and Lora chain network communication system |
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| CN201910681767.8A Pending CN111836332A (en) | 2019-04-19 | 2019-07-26 | Lora chain network communication method, Lora gateway and Lora chain network communication system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798875A (en) * | 2019-09-26 | 2020-02-14 | 浙江未来技术研究院(嘉兴) | Wireless network networking method and system |
| CN111372215A (en) * | 2020-03-16 | 2020-07-03 | 南京荣泰电气自动化有限公司 | LORA-based single-channel synchronous information acquisition system and method |
| CN112188452A (en) * | 2020-11-10 | 2021-01-05 | 厦门骐俊物联科技股份有限公司 | Communication time slot allocation method and LoRa networking system |
| CN113347591A (en) * | 2021-08-05 | 2021-09-03 | 四川省公路规划勘察设计研究院有限公司 | LoRa gateway, control method and field engineering structure monitoring system |
| US11323963B1 (en) | 2021-04-09 | 2022-05-03 | Hong Kong Applied Science and Technology Research Institute Company Limited | Optimizing battery consumption of remote end devices on a wireless long-range wide-area network (LoRaWAN) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113438660B (en) * | 2021-06-23 | 2022-07-19 | 厦门硅田系统工程有限公司 | Node group deployment method |
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| CN101742544B (en) * | 2009-11-26 | 2012-10-31 | 上海大学 | Energy-saving MAC and routing cross-layer method for linear monitoring network |
| EP2556698B1 (en) * | 2010-04-06 | 2015-11-11 | Telefonaktiebolaget L M Ericsson (publ) | Method and arrangement in a wireless communication system |
| CN102883370B (en) * | 2012-09-07 | 2015-03-04 | 浙江工业大学 | Distributed data transmission method for power line monitoring system on basis of wireless sensor network |
| CN102869124B (en) * | 2012-10-09 | 2015-04-15 | 深圳市翌日科技有限公司 | Wireless data transmission system and method |
| CN103052051B (en) * | 2012-12-28 | 2016-04-13 | 成都泰格微电子研究所有限责任公司 | A kind of communication means of wireless self-assembly system |
| US9301281B2 (en) * | 2013-02-22 | 2016-03-29 | Blackberry Limited | Mechanisms for timing and signaling coordination in multi-point connectivity |
| CN105208638B (en) * | 2015-08-27 | 2018-07-20 | 重庆甲虫网络科技有限公司 | A kind of means of communication of wireless sensor network |
| CN105407463B (en) * | 2015-12-09 | 2019-03-01 | 北京必创科技股份有限公司 | A kind of wireless sensor network system |
| CN107222900B (en) * | 2017-04-18 | 2020-05-15 | 西安电子科技大学 | Wireless sensor network node cooperation method based on dynamic chain |
| CN109150357A (en) * | 2018-08-15 | 2019-01-04 | 中国商用飞机有限责任公司 | The method for synchronizing time of hybrid bus based on RS485 and Ethernet |
-
2019
- 2019-04-19 CN CN201910317801.3A patent/CN110062433A/en not_active Withdrawn
- 2019-07-26 CN CN201910681767.8A patent/CN111836332A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798875A (en) * | 2019-09-26 | 2020-02-14 | 浙江未来技术研究院(嘉兴) | Wireless network networking method and system |
| CN110798875B (en) * | 2019-09-26 | 2021-07-30 | 浙江未来技术研究院(嘉兴) | Wireless network networking method and system |
| CN111372215A (en) * | 2020-03-16 | 2020-07-03 | 南京荣泰电气自动化有限公司 | LORA-based single-channel synchronous information acquisition system and method |
| CN112188452A (en) * | 2020-11-10 | 2021-01-05 | 厦门骐俊物联科技股份有限公司 | Communication time slot allocation method and LoRa networking system |
| US11323963B1 (en) | 2021-04-09 | 2022-05-03 | Hong Kong Applied Science and Technology Research Institute Company Limited | Optimizing battery consumption of remote end devices on a wireless long-range wide-area network (LoRaWAN) |
| CN113347591A (en) * | 2021-08-05 | 2021-09-03 | 四川省公路规划勘察设计研究院有限公司 | LoRa gateway, control method and field engineering structure monitoring system |
| CN113347591B (en) * | 2021-08-05 | 2021-10-15 | 四川省公路规划勘察设计研究院有限公司 | LoRa gateway, control method and field engineering structure monitoring system |
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Application publication date: 20190726 |