CN206331577U - A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies - Google Patents

A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies Download PDF

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Publication number
CN206331577U
CN206331577U CN201720003718.5U CN201720003718U CN206331577U CN 206331577 U CN206331577 U CN 206331577U CN 201720003718 U CN201720003718 U CN 201720003718U CN 206331577 U CN206331577 U CN 206331577U
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lora
power consumption
water level
router
remote measurement
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路永明
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Beijing Sanfan Intelligent Technology Co ltd
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Abstract

The utility model belongs to wireless low-power consumption wide area network(LoRa a kind of) communication data collecting device technical field, and in particular to low-power consumption frequency-extended communication equipment applied in water level acquisition;Concrete technical scheme is:A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies, including router and terminal node, LoRa gateways are provided with router, wireless connection is carried out between LoRa gateways and terminal node, the signal input part connection of router and internal storage, the signal output part of internal storage is connected with local storage, router is connected by transmission equipment with the signal input part of the Internet module, the signal output part of the Internet module respectively with cloud storage, cloud platform server is connected, the system utilizes LoRa spread spectrum technics, terminal data is realized to the collection in high in the clouds, terminal node passes through LoRa gateway accessings internet, only need to a linking Internet passage, realize the communication of low-power consumption long range.

Description

A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies
Technical field
The utility model belongs to wireless communication data collecting device technical field, and in particular to one kind is applied in water level acquisition In low-power consumption frequency-extended communication equipment.
Background technology
With developing rapidly for Internet of Things and wireless communication technology, people are inseparable with information network, channel radio Letter plays more and more important role in the life of people.Low-power consumption, miniaturization are users to Current wireless communication product The especially strong request of portable product.The low-power consumption of inexpensive, relatively other wireless communication technologys of short-distance wireless communication, And its peer-to-peer communications feature etc. has adapted to the demand of convenient information transmission that develops rapidly.In technology, cost, reliability and can be real Under considering with each side such as property, low-power consumption long-distance radio communication technology becomes the heat of current communications field research Point.
Water level acquisition terminal on the market is mainly based upon RTU technologies at present, is gathered by GPRS, 3G, 4G network transmission The data arrived, each acquisition terminal cost is high, and needs in operation to pay the flow usage charges of communication common carrier great number.It is logical Letter data is limited by Operator interface.The standard of operator can only be followed to transmit by great limitation.Data are passed Defeated delay, because the every data transmission of the limitation of RTU servers needs certain time interval, does not reach real-time than larger The requirement of data transfer.
Each terminal needs to configure powerful solar electric power supply system, and maintenance cost is very high, and service life is low, every 2 It is accomplished by year changing battery.
It is very limited that the water level acquisition terminal of high cost causes each regional water level acquisition device to be disposed, and sparse water level is adopted Collect data deficiencies and provide accurate and effective data analysis capabilities to flood-control and drought relief, cause very big tired to National Flood Control drought relief work It is difficult.Recent most area Rainfall Disaster is very frequent, in the urgent need to disposing a set of effective inexpensive telemetry terminal system.
Utility model content
To solve high cost, the technical problem of poor reliability that prior art is present, the utility model provides a kind of base In the water level collection system of Technology of Wireless Spread Spectrum, low cost, energy consumption is small, and reliability is high, and long service life can adapt to current water To the demand of water level collection system in profit.
To achieve the above object, the technical scheme that the utility model is used for:A kind of ultralow work(based on LoRa technologies Consume and LoRa gateways, LoRa gateways and terminal section are provided with remote measurement water level collection system, including router and terminal node, router Wireless connection, the signal input part connection of router and internal storage, the signal output part of internal storage are carried out between point It is connected with local storage, router is connected by transmission equipment with the signal input part of the Internet module, the Internet module Signal output part is connected with cloud storage, cloud platform server respectively.
The system utilizes LoRa spread spectrum technics, realizes terminal data to the collection in high in the clouds, terminal node passes through LoRa gateway accessings internet, each LoRa gateways can access up to 5000 LoRa nodes, it is only necessary to which an internet connects Enter passage, significantly save the cost of terminal collector.
Multiple LoRa nodes are provided with terminal node, LoRa nodes include main controller, and the signal input part of main controller is with surpassing Sound wave liquid level sensor is connected, and electric current loop, the signal output part of main controller are housed between main controller and ultrasonic liquid level sensor It is connected with the signal input part of LoRa radio-frequency modules, the signal output part of LoRa radio-frequency modules passes through wireless signal and router phase Even.LoRa gateways and LoRa nodes use Lora spread spectrum technics, and the technology has low-power consumption, long-distance transmissions feature.
Wherein, as preferred data transfer mode, transmission equipment is Ethernet.
Wherein, as preferred data transfer mode, transmission equipment is wifi.
Wherein, as preferred data transfer mode, transmission equipment is 2G/3G/4G.
Wherein, as preferred data transfer mode, transmission equipment is satellite.
Embedded micro computer and 8 passage LoRa radio frequency receivers are provided with LoRa gateways, using LoRa WAN agreements more Multinode communication is realized well, and LoRa gateways are integrated with 8 passage wireless receivers, better assure that the stabilization of data receiver Property.Wireless receiver make it that such receiver is used under 125kHz bandwidth by spread spectrum and is approached -140dBm's Sensitivity.Compared with FSK systems, this new spread spectrum mode improves 30dB in sensitivity so that same communication distance Transmission power will be reduced, so as to realize the communication of low-power consumption long range.
Wherein, as preferred power supply mode, terminal node is powered by phosphoric acid iron cell.
Energy-saving module is provided with terminal node, superpower dormancy mechanism built in energy-saving module, sleep current can as little as 100 uA Level, the mAh phosphoric acid iron cells of 1 batteries 3000 are available for LoRa nodes to use 5-10.
LoRa radio-frequency modules pass through 169MHz-1024MHz(It is customizable)Radio-frequency antenna is communicated with router.
Wherein, as preferred communication mode, LoRa radio-frequency modules are led to by 470MHz radio-frequency antennas and router News.
The system has the beneficial effect that:
First, the characteristics of long range low-power consumption is the system, embodiment is that cost is reduced on a large scale in actual applications so that The density of water level acquisition is improved, and effectively provides firsthand data data for able to resisting flood and drought, drought resisting flood proofing decision has been risen to pass Important effect.
2nd, this system utilizes LoRa spread spectrum technics, realizes terminal data to the collection in high in the clouds.Terminal node passes through LoRa gateway accessings internet, each LoRa gateways can access up to 5000 LoRa nodes, it is only necessary to which an internet connects Enter passage, largely save the cost of terminal collector.With the annual 120 yuan of calculating of a RTU terminal communication service charge, The flow monthly rental that 5000 LoRa nodes are produced every year reaches ten thousand yuan of 5000*120=60, and uses this system operation expense only The expense of common a 4m adsl lines or intelligent acess is needed, this expense is about in annual 600-2000 members, as country is to width The deployment taken with operation speed-raising drop, this expense is also in reduction.
3rd, LoRa gateways and terminal node use spread spectrum radio communication technology, farthest the communication distance up to 3-10 kilometers, Use stelliform connection topology configuration between terminal node and LoRa gateways, at the same LoRa nodes can between different LoRa gateways nothing Roaming communication is stitched, is delayed using this communication pattern small, the requirement of system real-time communication is preferably improved.
4th, terminal node uses low power dissipation design, is powered using the phosphoric acid iron cell of single-unit 18650, a section 2300MA batteries 5-10 can be used, compared with traditional solar energy system powers acquisition terminal, cost is lower, than existing wireless communication technology Lower power consumption several times.
Brief description of the drawings
Fig. 1 is Principle of Signal Transmission figure of the present utility model.
Fig. 2 is the Principle of Signal Transmission figure of embedded gateway.
Fig. 3 is LoRa node schematic diagrams.
In figure, 1 is router, and 2 be terminal node, and 3 be LORA gateways, and 4 be internal storage, and 5 be local storage, 6 It is cloud storage for the Internet module, 7,8 be cloud platform server, and 9 be ethernet module, and 10 be wifi module, and 11 be movement Communication module, 21 be LORA nodes, and 22 be main controller, and 23 be ultrasonic liquid level sensor, and 24 be LORA radio-frequency modules, and 25 be to penetrate Frequency antenna, 31 be embedded micro computer, and 32 be 8 passage LORA radio frequency receivers.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with Lower combination drawings and Examples, the utility model is further elaborated.It should be appreciated that specific reality described herein Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in figure 1, a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies, including router 1 and end End node 2, LORA gateways 3 are provided with router 1, carry out wireless connection between LORA gateways 3 and terminal node 2, router 1 with The signal input part connection of internal storage 4, the signal output part of internal storage 4 is connected with local storage 5, router 1 Be connected by transmission equipment with the signal input part of the Internet module 6, the signal output part of the Internet module 6 respectively with cloud storage Device 7, cloud platform server 8 are connected.
The system utilizes LoRa spread spectrum technics, and the transmission range maximum of sensor node to LORA gateways 3 is reachable 20km, single LORA gateways 3, which can be connected, can pass through mesh network between 5000 sensor nodes, each LORA gateways 3 (MESH)Technology, carries out multi-hop(Jumped up to 32), high bandwidth(1600Mbps), it is remote(50km)Two-way communication.
System automatically links to Internet of Things cloud platform from linking Internet, and platform carries out data storage, data analysis, number The function of being required according to users such as visualizations.User can be from anywhere in having linking Internet, by strict safety certification Carry out the browse operation of corresponding function.
As shown in figure 3, being provided with multiple LORA nodes 21 in terminal node 2, LORA nodes 21 include main controller 22, main controller 22 signal input part is connected with ultrasonic liquid level sensor 23, is equipped between main controller 22 and ultrasonic liquid level sensor 23 The input signals such as TTL, pulse or 4-20mA, the signal output part of main controller 22 and the signal input part phase of LORA radio-frequency modules 24 Even, the signal output part of LORA radio-frequency modules 24 is connected by wireless signal with router 1.LORA gateways 3 and LORA nodes 21 Using Lora spread spectrum technics, the technology has low-power consumption, long-distance transmissions feature.
Terminal node 2 devises sensor input signal acquisition module, for gathering ultrasonic water level sensor electric current letter Number.Versatility has been accomplished in the requirement that the LORA nodes 21 design meets most of sensor interface, upgrading sensor or should Without changes terminal node 2 when being changed with mode.
Water level acquisition device is by ultrasonic transducer(Probe)Send high-frequency impulse sound wave and run into measured object position(Material) Surface, which is reflected, to be turned back, and reflection echo is received by transducer and is converted into electric signal, and electric signal is turned by high-precision AD converter again Change data signal into, LORA gateways 3 be sent to by LoRaWan, each terminal node 2 has a unique ID code to identify, Server recognizes the installation site of level sensor by ID codes.
There is digital filter in LORA nodes 21, the data to collection are analyzed, remove the noisy data of clutter, it is ensured that The accuracy of data.
LORA nodes 21 have been internally integrated 8Mbyte flash storage, and gathered data can be recorded, can be right The operational factor of LORA nodes 21 does log recording.
Cloud server is the central database of data summarization, and the system realizes data storage, the equipment pipe of terminal node 2 Reason, remote equipment maintenance upgrade, big data are analyzed, according to the intelligent calibration data of historical data, self-built privately owned cloud system, guarantee number / function of statistic analysis is checked/downloads according to privacy, data visualization, data Web.
Wherein, as preferred data transfer mode, transmission equipment is ethernet module 9.
Wherein, as preferred data transfer mode, transmission equipment is wifi module 10.
Wherein, as preferred data transfer mode, transmission equipment is mobile communication module 11.
Wherein, as preferred data transfer mode, transmission equipment is satellite.
As shown in Fig. 2 being provided with the passage LORA radio frequency receivers 32 of embedded micro computer 31 and 8, node in LORA gateways 3 Main controller 22 is made using 32 MCU of low-power consumption of ARM frameworks, LoRaWAN wireless communication protocols is embedded, there is signal collision detection machine System, adaptation rate has superpower anti-interference mechanism in face of complex environment.LORA nodes 21 carry ack signal confirmation, effectively Communication reliability requirement is ensured, transmission power have effectively achieved low-power consumption according to the RISS value adjust automaticallies of communication distance The requirement of communication.
LORA gateways 3 are integrated with a microprocessor, based on ARM frameworks, embed linux operating systems, integrated LoRaWAN Agreement, is communicated by SPI interface and radio-frequency module.LORA nodes 21 have 4 standard USB interfaces, a 10/100M Ethernet Mouth, SMA interfaces connect 470M antennas, are powered using DC5V/2A power supplys, support that POE 9-36V power.
The system carries WLAN module, can access internet by WiFi, can also connect ether by RJ45 interfaces Network accessing Internet realizes the communication to high in the clouds.The radio-frequency communication module of LORA gateways 3 receives the data that LORA nodes 21 are sent, Internal system is done after error checking and correction and integrity detection, and correct partial data is transmitted to Cloud Server.LORA gateways 3 are same When serve as data forwarding that server sends to terminal node 2.
Multinode communication is preferably realized using LoRa WAN agreements, LORA gateways 3 are integrated with 8 passage wireless receivings Device, better assures that the stability of data receiver.Wireless receiver causes such receiver in 125kHz by spread spectrum Bandwidth under using being approached -140dBm sensitivity.Compared with FSK systems, this new spread spectrum mode is in sensitivity 30dB is improved, so that same communication distance transmission power will be reduced, so as to realize the communication of low-power consumption long range.
Wherein, as preferred power supply mode, terminal node 2 is powered by phosphoric acid iron cell.
Energy-saving module is provided with terminal node 2, superpower dormancy mechanism built in energy-saving module, sleep current can as little as 100 uA Level, the mAh phosphoric acid iron cells of 1 batteries 3000 are available for LORA nodes 21 to use 5-10.
LORA radio-frequency modules 24 pass through 169MHz-1024MHz(It is customizable)Radio-frequency antenna 25 is communicated with router 1, Wherein, it is preferred to use 470MHz radio-frequency antennas 25 are communicated with router 1.
During use is specifically implemented, the system is applied at three hydrometric stations, according to the scene at three hydrometric stations Investigation is on the spot carried out.Situation is as follows:
No. 1 hydrometric station
Arranging apparatus:Rainfall gauge, all the way water-level gauge, HD video.
Installation method:Rainfall gauge and water-level gauge pass to LORA gateways 3 by LoRa modules, LORA gateways 3 by netting twine with Linking Internet router 1 is connected, and high-definition network camera accesses internet by WIFI.
No. 2 hydrometric stations
Equipment is installed:Rainfall gauge, all the way water-level gauge, HD video.
Installation method:Rainfall gauge and water-level gauge pass to LORA gateways 3 by LoRa modules, LORA gateways 3 by netting twine with Linking Internet router 1 is connected, and high-definition network camera accesses internet by WIFI.
3rd, hydrology master station and Bureau of Water Resources's point-to-point communication(Wireless Mesh network)
Equipment is installed:2-3 Wireless Mesh node.
Field condition:One Mesh node is first respectively installed at hydrology master station and Bureau of Water Resources's roof lofty perch, whether be seen can UNICOM, if being unable to UNICOM, looks for lofty perch building at one to fill a relaying between hydrology master station and Bureau of Water Resources, then row is adjusted Examination.
Equipment advantage:Wireless MESH network is responsible for all equipment to connect, and has broken the limitation of physical distance, by force Big redundancy and fault-tolerant ability ensures the reliable and stable connection of system there is provided more than 100M available bandwidth, by data, video and Voice uniform transmission.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Any modification, equivalent and improvement made within the spirit and principle of utility model etc., all should be wrapped in the utility model model In enclosing.

Claims (9)

1. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies, it is characterised in that including router(1)And end End node(2), router(1)It is interior to be provided with LORA gateways(3), LORA gateways(3)With terminal node(2)Between wirelessly connected Connect, the router(1)With internal storage(4)Signal input part connection, internal storage(4)Signal output part with this Ground memory(5)Connection, router(1)Pass through transmission equipment and the Internet module(6)Signal input part be connected, internet mould Block(6)Signal output part respectively with cloud storage(7), cloud platform server(8)It is connected;
The terminal node(2)It is interior to be provided with multiple LORA nodes(21), LoRa include main controller(22), main controller(22)Signal Input and ultrasonic liquid level sensor(23)It is connected, main controller(22)With ultrasonic liquid level sensor(23)Between be equipped with electric current Ring, main controller(22)Signal output part and LORA radio-frequency modules(24)Signal input part be connected, LORA radio-frequency modules(24) Signal output part pass through wireless signal and router(1)It is connected.
2. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 1, its feature exists In the transmission equipment is ethernet module(9).
3. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 2, its feature exists In the transmission equipment is wifi module(10).
4. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 3, its feature exists In the transmission equipment is mobile communication module(11).
5. a kind of super low-power consumption remote measurement water level acquisition based on LoRa technologies according to any one of claim 2,3 or 4 System, it is characterised in that the LORA gateways(3)It is interior to be provided with embedded micro computer(31)With 8 passage LORA radio frequency receivers (32).
6. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 5, its feature exists In the terminal node(2)Powered by phosphoric acid iron cell.
7. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 6, its feature exists In the terminal node(2)It is interior to be provided with energy-saving module.
8. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 7, its feature exists In the LORA radio-frequency modules(24)Pass through 169MHz-1024MHz radio-frequency antenna(25)With router(1)Communicated.
9. a kind of super low-power consumption remote measurement water level collection system based on LoRa technologies according to claim 8, its feature exists In the LORA radio-frequency modules(24)Pass through 470MHz radio-frequency antennas(25)With router(1)Communicated.
CN201720003718.5U 2017-01-04 2017-01-04 A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies Expired - Fee Related CN206331577U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107846340A (en) * 2017-11-17 2018-03-27 南京芯传汇电子科技有限公司 A kind of Internet of Things application system based on the star-like networkings of lora
CN108234258A (en) * 2018-04-03 2018-06-29 深圳市世纪本原科技股份有限公司 A kind of intelligent home gateway based on LORA wireless communication techniques
WO2019029058A1 (en) * 2017-08-05 2019-02-14 Central Merchandising Asian Limited Wi-fi-based remote control apparatus for device
CN109462878A (en) * 2017-09-06 2019-03-12 阿里巴巴集团控股有限公司 A kind of method of network entry and device of same frequency terminal node
CN109975230A (en) * 2019-05-16 2019-07-05 北京印刷学院 Pollutant on-line detecting system and method
CN110136531A (en) * 2019-06-12 2019-08-16 江苏艾什顿科技有限公司 A kind of LoRa real training experimental box
CN110599752A (en) * 2019-08-16 2019-12-20 深圳融卡智能科技有限公司 Water level acquisition terminal and water level acquisition system
CN111258616A (en) * 2020-01-09 2020-06-09 深圳市东深电子股份有限公司 Water conservancy RTU acquisition function upgrading method based on LORA communication
CN112351399A (en) * 2020-09-29 2021-02-09 北京空间飞行器总体设计部 High-reliability relay communication system suitable for field unattended station

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019029058A1 (en) * 2017-08-05 2019-02-14 Central Merchandising Asian Limited Wi-fi-based remote control apparatus for device
CN109462878A (en) * 2017-09-06 2019-03-12 阿里巴巴集团控股有限公司 A kind of method of network entry and device of same frequency terminal node
WO2019047750A1 (en) * 2017-09-06 2019-03-14 阿里巴巴集团控股有限公司 Network access method and device of same frequency terminal node
CN107846340A (en) * 2017-11-17 2018-03-27 南京芯传汇电子科技有限公司 A kind of Internet of Things application system based on the star-like networkings of lora
CN107846340B (en) * 2017-11-17 2023-10-10 南京芯传汇电子科技有限公司 Internet of things application system based on lora star networking
CN108234258A (en) * 2018-04-03 2018-06-29 深圳市世纪本原科技股份有限公司 A kind of intelligent home gateway based on LORA wireless communication techniques
CN109975230A (en) * 2019-05-16 2019-07-05 北京印刷学院 Pollutant on-line detecting system and method
CN110136531A (en) * 2019-06-12 2019-08-16 江苏艾什顿科技有限公司 A kind of LoRa real training experimental box
CN110599752A (en) * 2019-08-16 2019-12-20 深圳融卡智能科技有限公司 Water level acquisition terminal and water level acquisition system
CN111258616A (en) * 2020-01-09 2020-06-09 深圳市东深电子股份有限公司 Water conservancy RTU acquisition function upgrading method based on LORA communication
CN111258616B (en) * 2020-01-09 2023-09-08 深圳市东深电子股份有限公司 Hydraulic RTU acquisition function upgrading method based on LORA communication
CN112351399A (en) * 2020-09-29 2021-02-09 北京空间飞行器总体设计部 High-reliability relay communication system suitable for field unattended station

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