CN206331578U - A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum - Google Patents

A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum Download PDF

Info

Publication number
CN206331578U
CN206331578U CN201720003720.2U CN201720003720U CN206331578U CN 206331578 U CN206331578 U CN 206331578U CN 201720003720 U CN201720003720 U CN 201720003720U CN 206331578 U CN206331578 U CN 206331578U
Authority
CN
China
Prior art keywords
lora
power consumption
low
spread spectrum
technology
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720003720.2U
Other languages
Chinese (zh)
Inventor
路永明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sanfan Intelligent Technology Co ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201720003720.2U priority Critical patent/CN206331578U/en
Application granted granted Critical
Publication of CN206331578U publication Critical patent/CN206331578U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Mobile Radio Communication Systems (AREA)

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 spread spectrum technic applied in rain collection;Concrete technical scheme is:A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum, LoRa gateways are made up of embedded micro computer and LoRa radio frequency receivers, LoRa radio frequency receivers carry out wireless signal with multiple LoRa nodes and are connected, embedded micro computer is connected by transmission equipment with the signal input part of the Internet module, the signal input part of the main controller of LoRa nodes respectively with rain sensor, temperature/humidity sensor is connected, the signal output part of main controller is connected with the signal input part of LoRa radio-frequency modules, the signal output part of LoRa radio-frequency modules carries out wireless signal with LoRa radio frequency receivers and is connected, rain collection device is used to count and send the data to LoRa gateways.

Description

A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum
Technical field
The utility model belongs to data acquisition equipment technical field, and in particular to a kind of low work(applied in rain collection Spread spectrum technic is consumed, radio communication is realized.
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.
At present, rain collection terminal on the market is mainly based upon RTU technologies, is gathered by GPRS, 3G, 4G network transmission The data arrived, each acquisition terminal cost is high, in addition, need to pay the flow usage charges of communication common carrier great number in operation, Communication data is limited by Operator interface, can only follow the standard of operator to transmit by great limitation.Data Transmission delay is than larger, due to the limitation of RTU servers, and per data, transmission needs certain time interval, does not reach reality The requirement of when property 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 rain collection terminal of high cost causes each regional rain collection device to be disposed, and sparse rainfall is adopted Collect data deficiencies to 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.In recent years, most area Rainfall Disaster was very frequent, in the urgent need to disposing a set of effectively 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 remote gauged rainfall system of Technology of Wireless Spread Spectrum, using LORA spread spectrum technics, terminal data is realized to the collection in high in the clouds, into This is low, and energy consumption is small, and reliability is high, and long service life can adapt to demand of the existing market to remote rain amount.
To achieve the above object, the technical scheme that the utility model is used for:It is a kind of based on the low of Technology of Wireless Spread Spectrum Power consumption remote gauged rainfall system, including LoRa gateways, LoRa gateways are made up of embedded micro computer and LoRa radio frequency receivers, embedding Enter and be connected between formula microcomputer and LoRa radio frequency receivers by Serial Peripheral Interface (SPI), LoRa radio frequency receivers and nodal terminal Wireless signal connection is carried out, embedded micro computer is connected by transmission equipment with the signal input part of the Internet module.
Nodal terminal is made up of multiple LoRa nodes, and LoRa nodes include main controller, and the signal input part of main controller is distinguished It is connected with rain sensor, temperature/humidity sensor, the signal output part of main controller passes through Serial Peripheral Interface (SPI) and LoRa radio frequencies The signal input part of module is connected, and signal output part and the LoRa radio frequency receivers of LoRa radio-frequency modules carry out wireless signal company Connect.Rain collection device is a tipper counter principle, and a pulse can be produced by often turning over a pipeful of rain, right by MCU DI mouths Tipping bucket number of times is counted, and is then sent to LoRa gateways.Each nodal terminal has a unique ID code to identify, server The logical installation site of rainfall is recognized by ID codes.
There is digital filter in LoRa nodes, the data to collection are analyzed, remove the noisy data of clutter, it is ensured that number According to accuracy.
LoRa intra-nodes are integrated with 8Mbyte flash storage, and gathered data can be recorded.Can be to LoRa Node operational factor does log recording.
LoRa gateways and LoRa nodes use Lora spread spectrum technics, and the technology has low-power consumption, and long-distance transmissions are special Point.Multinode communication is better achieved using LoRa WAN agreements, LoRa gateways are integrated with 8 passage wireless receivers, more preferably Ground ensure that the stability of data receiver.Wireless receiver causes such receiver under 125kHz bandwidth by spread spectrum Use the sensitivity for being approached -140dBm.Compared with FSK systems, this new spread spectrum mode is improved in sensitivity 30dB, so that same communication distance transmission power will be reduced, so as to realize the communication of low-power consumption long range.
LoRa gateways 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.There are 4 standard USB interfaces, 10/100M Ethernet interfaces, a SMA interfaces to connect 470M antennas, DC5V/2A power supplys are powered, and support that POE 9-36V power
TF cards socket supports standard SD card, and SD card is used for data storage and software systems, and carrying WLAN module can pass through WiFi accesses internet, and Ethernet access internet can also be connected by RJ45 interfaces and realizes the communication for arriving high in the clouds.
Workflow:Gateway radio-frequency communication module receives the data that LoRa nodes are sent, and error checking and correction is done in internal system After integrity detection, correct partial data is transmitted to Cloud Server, LoRa gateways concurrently act as what server was sent Data forwarding is to nodal terminal.
The system is by embedded LoRa gateways, rain collection nodal terminal and cloud platform server group into embedded LoRa Gateway act as communicating with node, and the collection of data is simultaneously forwarded to internet cloud server, is used from LoRa gateways and high in the clouds Standard IP network agreement, versatility and reliability can all be ensured.LoRa gateways and LoRa use LoRa spread spectrum technics, The technology has low-power consumption, long-distance transmissions feature, and multinode communication, LoRa nets has been better achieved using LoRa WAN agreements Pass is integrated with 8 passage wireless receivers, better assures that the stability of data receiver.Wireless receiver is made by spread spectrum Such receiver is obtained under 125KHz broadband using the sensitivity for being approached -140dBm.It is this new compared with FSK systems Spread spectrum mode 30dB is improved in sensitivity, so that same communication distance transmission power will be reduced, so that real The communication of existing low-power consumption long range.
LoRa nodes make main controller using 32 MCU of STM32L052 low-power consumption, embed LoRaWAN wireless communication protocols, have Signal collision testing mechanism, adaptation rate has superpower anti-interference mechanism in face of complex environment.Ack signal confirmation has been carried, Effective guarantee communication reliability requirement.Transmission power adjust automatically, effectively realizes the requirement of low power loss communication, built-in super Strong dormancy mechanism, sleep current can be as little as 10uA grades.
Cloud server is the central database of data summarization, and the system realizes data storage, nodal terminal equipment control, Remote equipment maintenance upgrade, big data analysis, according to the intelligent calibration data of historical data, self-built privately owned cloud system ensures data Privacy.
Wherein, as a kind of preferred signal transmission form, transmission equipment is wireless aps.
Wherein, as another preferred signal transmission form, transmission equipment is router.
Nodal terminal is powered by phosphoric acid iron cell, and 1 batteries 3000mAh phosphoric acid iron cells are available for nodal terminal to use 5- 10 years.
Energy-saving module is provided with nodal terminal, nodal terminal devises 4-20mA electric current loop acquisition modules, for gathering electricity Flow the sensor of signal output.IEA-RS485 communication interfaces are integrated with, modbus agreements are supported.It has also been devised digital quantity signal DI, DO.Collection for doing Boolean value output sensor.The requirement that the design of node meets most of sensor interface has accomplished general Property, it need not change nodal terminal when upgrading sensor or application mode change.
LoRa radio-frequency modules pass through 169MHz-1024MHz(It is customizable)Radio-frequency antenna is communicated with router.
Wherein, as preferred, LoRa radio-frequency modules are led to by 470MHz radio-frequency antennas and LoRa radio frequency receivers News.
The system has the beneficial effect that:
First, it is inexpensive:The system utilizes LoRa spread spectrum technics, realizes terminal data to the collection in high in the clouds, node Terminal is by LoRa gateway accessings internet, and each LoRa gateways can access up to 5000 LoRa nodes, it is only necessary to one Linking Internet passage, has largely saved the cost of terminal collector.
2nd, telecommunication:LoRa gateways and nodal terminal are farthest up to 3-10 kilometers using spread spectrum radio communication technology Communication away from stelliform connection topology configuration being used between nodal terminal and LoRa gateways, while LoRa nodes can be in obstructed LoRa Seamless roam communicates between gateway, is delayed using this communication pattern small, preferably improves the requirement of system real-time communication.
3rd, low-power consumption:Nodal terminal uses low power dissipation design, is powered using the phosphoric acid iron cell of single-unit 18650.One section 2300MA batteries can use 5-10, with traditional solar energy system power acquisition terminal compare it is more inexpensive.
Brief description of the drawings
Fig. 1 is Principle of Signal Transmission figure of the present utility model.
Fig. 2 is nodal terminal schematic diagram.
In figure, 1 is LoRa gateways, and 2 be embedded micro computer, and 3 be LoRa radio frequency receivers, and 4 be nodal terminal, and 5 are The Internet module, 6 be LoRa nodes, and 61 be main controller, and 62 be rain sensor, and 63 be temperature/humidity sensor, and 64 be LoRa Radio-frequency module, 65 be wireless aps, and 66 be router, and 67 be radio-frequency antenna.
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 depicted in figs. 1 and 2, a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum, including LoRa gateways 1, LoRa gateway 1 is made up of embedded micro computer 2 and LoRa radio frequency receivers 3, and embedded micro computer 2 and LoRa radio frequencies connect It is connected between receipts device 3 by Serial Peripheral Interface (SPI), LoRa radio frequency receivers 3 carry out wireless signal with nodal terminal 4 and are connected, embedded Formula microcomputer 2 is connected by transmission equipment with the signal input part of the Internet module 5.
Nodal terminal 4 is made up of multiple LoRa nodes 6, and LoRa nodes 6 include main controller 61, and the signal of main controller 61 is inputted End is connected with rain sensor 62, temperature/humidity sensor 63 respectively, and the signal output part of main controller 61 is connect by serial peripheral Mouth is connected with the signal input part of LoRa radio-frequency modules 64, signal output part and the LoRa radio frequency receivers of LoRa radio-frequency modules 64 3 carry out wireless signal connection.Rain collection device is a tipper counter principle, and a pulse can be produced by often turning over a pipeful of rain, Tipping bucket number of times is counted by MCU DI mouths, LoRa gateways 1 are then sent to.Each nodal terminal 4 has one uniquely ID codes are identified, and server recognizes the logical installation site of rainfall by ID codes.
There is digital filter in LoRa nodes 6, the data to collection are analyzed, remove the noisy data of clutter.Ensure The accuracy of data.
8Mbyte flash storage has been internally integrated, gathered data can have been recorded.LoRa nodes 6 can be transported Row parameter does log recording.
LoRa gateways 1 and LoRa nodes 6 use Lora spread spectrum technics, and the technology has low-power consumption, long-distance transmissions Feature.Multinode communication is preferably realized using LoRa WAN agreements, LoRa gateways 1 are integrated with 8 passage wireless receivers, It preferably ensure that the stability of data receiver.Wireless receiver causes such receiver in 125kHz band by spread spectrum Width is lower to use the sensitivity for being approached -140dBm.Compared with FSK systems, this new spread spectrum mode improves in sensitivity 30dB, so that same communication distance transmission power will be reduced, so as to realize the communication of low-power consumption long range.
LoRa gateways 1 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.There are 4 standard USB interfaces, 10/100M Ethernet interfaces, a SMA interfaces to connect 470M antennas, DC5V/2A power supplys are powered, and support that POE 9-36V power
SD card is used for data storage and software systems, and internet can be accessed by WiFi by carrying WLAN module, can also The realization of Ethernet access internet is connected to the communication in high in the clouds by RJ45 interfaces.
Gateway radio-frequency communication module receives the data that LoRa nodes 6 are sent, and error checking and correction and integrality are done in internal system After detection, correct partial data is transmitted to Cloud Server.Gateway concurrently acts as data forwarding that server sends to section Point terminal 4.
The system is by embedded LoRa gateways 1, rain collection nodal terminal 4 and cloud platform server group into embedded LoRa gateways 1 act as communicating with node, and the collection of data is simultaneously forwarded to internet cloud server, from LoRa gateways 1 and cloud End uses standard IP network agreement, and versatility and reliability can all be ensured.LoRa gateways 1 and LoRa and Ei are mono- uses LoRa Spread spectrum technic, the technology has low-power consumption, long-distance transmissions feature, and more piece has been better achieved using LoRa WAN agreements Point communication, LoRa gateways 1 are integrated with 8 passage wireless receivers, better assure that the stability of data receiver.Wireless receiver By spread spectrum so that such receiver uses the sensitivity for being approached -140dBm under 125KHz broadband.With FSK systems System is compared, and this new spread spectrum mode improves 30dB in sensitivity, so that same communication distance transmission power is just It can reduce, so as to realize the communication of low-power consumption long range.
LoRa nodes 6 make main controller 61 using 32 MCU of STM32L052 low-power consumption, embed LoRaWAN radio communications association View, has signal collision testing mechanism, adaptation rate has superpower anti-interference mechanism in face of complex environment.Ack signal is carried Confirm, effective guarantee communication reliability requirement.Transmission power adjust automatically, effectively realizes the requirement of low power loss communication. Built-in superpower dormancy mechanism, sleep current can be as little as 10uA grades.
Cloud server is the central database of data summarization, and the system realizes data storage, the equipment pipe of nodal terminal 4 Reason, remote equipment maintenance upgrade, big data analysis, according to the intelligent calibration data of historical data.Self-built privately owned cloud system, ensures number According to privacy.
Wherein, as a kind of preferred signal transmission form, transmission equipment is wireless aps 65.
Wherein, as another preferred signal transmission form, transmission equipment is router 66.
Nodal terminal 4 is powered by phosphoric acid iron cell, and 1 batteries 3000mAh phosphoric acid iron cells are available for LoRa nodes 6 to use 5-10.
Energy-saving module is provided with nodal terminal 4, nodal terminal 4 devises sensor input signal acquisition module, for adopting The sensor of colleeting comb signal output.IEA-RS485 communication interfaces are integrated with, modbus agreements are supported.It has also been devised digital quantity Signal DI, DO.Collection for doing Boolean value output sensor.The requirement that the design of node meets most of sensor interface is accomplished Nodal terminal 4 need not be changed when versatility, upgrading sensor or application mode change.
LoRa radio-frequency modules pass through 169MHz-1024MHz(It is customizable)Radio-frequency antenna is communicated with router.
Wherein, as preferred, LoRa radio-frequency modules 64 are entered by 470MHz radio-frequency antennas 67 and LoRa radio frequency receivers 3 Row communication.
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 rain Amount adopts denseness of set raising, effectively provides firsthand data data for able to resisting flood and drought, drought resisting flood proofing decision has been risen heavy to closing The effect wanted.
This system utilizes LoRa spread spectrum technics, realizes terminal data to the collection in high in the clouds.Nodal terminal 4 passes through LoRa gateways 1 access internet, and each LoRa gateways 1 can access up to 5000 LoRa nodes 6, it is only necessary to an internet Access passage.The cost of terminal collector is significantly saved.In terms of annual 120 yuan of a RTU terminal communication service charge Calculate, the flow monthly rental that 5000 LoRa nodes 6 are produced every year reaches ten thousand yuan of 5000*120=60, and is taken using this system operation With the expense of common a 4m adsl lines or intelligent acess is only needed, this expense is about in annual 600-2000 members.With Li Ke Premier Qiang raises speed to broadband operation drops the deployment taken, and this expense is also in reduction.
LoRa gateways 1 and nodal terminal 4 using the farthest communication up to 3-10 kilometers of spread spectrum radio communication technology away from.Node Use stelliform connection topology configuration between terminal 4 and LoRa gateways 1, at the same LoRa nodes 6 can between different LoRa gateways 1 nothing Stitch roaming communication.It is delayed using this communication pattern small, preferably improves the requirement of system real-time communication.
Nodal terminal 4 uses low power dissipation design, is powered using the phosphoric acid iron cell of single-unit 18650.One section 2300MA batteries can With use 5-10, with tradition solar energy system power acquisition terminal compare it is more inexpensive, than existing wireless communication technology Lower power consumption several times.
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 (7)

1. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum, it is characterised in that including LoRa gateways(1), institute State LoRa gateways(1)By embedded micro computer(2)With LoRa radio frequency receivers(3)Composition, embedded micro computer(2)With LoRa radio frequency receivers(3)Between by Serial Peripheral Interface (SPI) be connected, LoRa radio frequency receivers(3)With nodal terminal(4)Carry out Wireless signal is connected, embedded micro computer(2)Pass through transmission equipment and the Internet module(5)Signal input part be connected;
The nodal terminal(4)By multiple LoRa nodes(6)Composition;
LoRa nodes(6)Including main controller(61), main controller(61)Signal input part respectively with rain sensor(62), temperature Degree/humidity sensor(63)It is connected, main controller(61)Signal output part pass through Serial Peripheral Interface (SPI) and LoRa radio-frequency modules (64)Signal input part be connected, LoRa radio-frequency modules(64)Signal output part and LoRa radio frequency receivers(3)Carry out wireless Signal is connected.
2. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 1, it is characterised in that The transmission equipment is wireless aps(65).
3. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 2, it is characterised in that The transmission equipment is router(66).
4. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 3, it is characterised in that The nodal terminal(4)Powered by phosphoric acid iron cell.
5. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 4, it is characterised in that The nodal terminal(4)It is interior to be provided with energy-saving module.
6. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 5, it is characterised in that The LoRa radio-frequency modules(64)Pass through 169MHz-1024MHz radio-frequency antennas(67)With LoRa radio frequency receivers(3)Led to News.
7. a kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum according to claim 6, it is characterised in that The LoRa radio-frequency modules(64)Pass through 470MHz radio-frequency antennas(67)With LoRa radio frequency receivers(3)Communicated.
CN201720003720.2U 2017-01-04 2017-01-04 A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum Expired - Fee Related CN206331578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720003720.2U CN206331578U (en) 2017-01-04 2017-01-04 A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720003720.2U CN206331578U (en) 2017-01-04 2017-01-04 A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum

Publications (1)

Publication Number Publication Date
CN206331578U true CN206331578U (en) 2017-07-14

Family

ID=59294743

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720003720.2U Expired - Fee Related CN206331578U (en) 2017-01-04 2017-01-04 A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum

Country Status (1)

Country Link
CN (1) CN206331578U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108107486A (en) * 2018-01-16 2018-06-01 昆明理工大学 A kind of vehicular traffic weather circuit breaker for real-time monitoring device based on LoRa
CN108156672A (en) * 2017-08-25 2018-06-12 广州莲雾科技有限公司 A kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa
CN108662995A (en) * 2018-04-20 2018-10-16 河南理工大学 A kind of snow depth variation Real-time Monitoring Data transmitting device
CN109257236A (en) * 2018-11-14 2019-01-22 苏州苏信环境科技有限公司 A kind of cleanliness real-time online monitoring system based on LoRa technology
CN109597340A (en) * 2018-12-17 2019-04-09 珠海市研泰电子科技有限公司 A kind of portable low power-consumption data collection and transfering system
CN109787683A (en) * 2019-01-29 2019-05-21 中富通集团股份有限公司 A kind of wireless looped network emergency power supply photoelectric conversion device
CN110247676A (en) * 2019-07-17 2019-09-17 杭州罗万信息科技有限公司 Termite detects terminal and wireless communication arrangement and method using the terminal
CN110610604A (en) * 2019-10-21 2019-12-24 贵州电网有限责任公司 Smart power grids gateway based on LoRaWAN
CN111031504A (en) * 2019-12-06 2020-04-17 深圳大学 LoRa node equipment based on edge calculation
WO2020192367A1 (en) * 2019-03-28 2020-10-01 厦门龙辉芯物联网科技有限公司 Advection fog forecasting system and forecasting method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108156672A (en) * 2017-08-25 2018-06-12 广州莲雾科技有限公司 A kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa
CN108107486A (en) * 2018-01-16 2018-06-01 昆明理工大学 A kind of vehicular traffic weather circuit breaker for real-time monitoring device based on LoRa
CN108662995A (en) * 2018-04-20 2018-10-16 河南理工大学 A kind of snow depth variation Real-time Monitoring Data transmitting device
CN109257236A (en) * 2018-11-14 2019-01-22 苏州苏信环境科技有限公司 A kind of cleanliness real-time online monitoring system based on LoRa technology
CN109597340A (en) * 2018-12-17 2019-04-09 珠海市研泰电子科技有限公司 A kind of portable low power-consumption data collection and transfering system
CN109787683A (en) * 2019-01-29 2019-05-21 中富通集团股份有限公司 A kind of wireless looped network emergency power supply photoelectric conversion device
CN109787683B (en) * 2019-01-29 2021-06-08 中富通集团股份有限公司 Wireless looped network emergency power supply photoelectric conversion equipment
WO2020192367A1 (en) * 2019-03-28 2020-10-01 厦门龙辉芯物联网科技有限公司 Advection fog forecasting system and forecasting method
CN110247676A (en) * 2019-07-17 2019-09-17 杭州罗万信息科技有限公司 Termite detects terminal and wireless communication arrangement and method using the terminal
CN110610604A (en) * 2019-10-21 2019-12-24 贵州电网有限责任公司 Smart power grids gateway based on LoRaWAN
CN111031504A (en) * 2019-12-06 2020-04-17 深圳大学 LoRa node equipment based on edge calculation

Similar Documents

Publication Publication Date Title
CN206331578U (en) A kind of low-power consumption remote gauged rainfall system based on Technology of Wireless Spread Spectrum
CN206331577U (en) A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies
CN206332860U (en) LoRa gateways
CN201707782U (en) Intelligent meter reading system based on GPRS (General Packet Radio Service)
CN203573481U (en) ZigBee technology-based wireless meter reading system
CN206302423U (en) A kind of remote measurement flow velocity acquisition system based on LoRa technologies
CN102883340B (en) Remote transfer transmission system suitable for network-free areas and transmission method thereof
CN102194304A (en) Method and system for wireless concentrated collection and management of energy measurement data
CN102194309A (en) Low-voltage power line broadband carrier concentrator
CN101894448A (en) Remote centralized meter-reading system
CN208401842U (en) A kind of 230MHz LoRa built-in module meeting southern network mark standard
CN105469582A (en) Tunnel pressure wave collection system and data collection method thereof
CN101789166A (en) Method and system thereof for improving remote meter reading efficiency of small hydropower station
CN107146397A (en) It is a kind of to be used for water meter, ammeter, gas meter, the arrowband Internet of Things centralized procurement system of hotlist
CN207251930U (en) The simple gateways of LoRa
CN206331579U (en) LoRa universal nodes
CN106791258A (en) LoRa image acquisition transmission systems
CN207339913U (en) A kind of things-internet gateway and the system using the things-internet gateway
CN206302424U (en) A kind of remote measurement flow collection system based on LoRa technologies
CN210352517U (en) Intelligent irrigation system based on LoRa
CN205785304U (en) A kind of soil moisture content equipment Acquisition Instrument terminal and system
CN101145274A (en) Multifunctional meter communication module
CN202309775U (en) Noise data acquiring and transmitting system for airports
CN207251681U (en) Prepaid wireless remote transmitting water meter
CN204559893U (en) Wireless communication device, table meter inquiry unit and table meter inquiry system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20200520

Address after: No.319, building 1, No.8, Hangfeng Road, Fengtai District, Beijing 100070

Patentee after: Beijing Sanfan Intelligent Technology Co.,Ltd.

Address before: 030000, No. 2, building 9, Yuanyang house, No. 28, Kaesong street, Wan Berlin District, Shanxi, Taiyuan

Patentee before: Lu Yongming

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170714

Termination date: 20220104

CF01 Termination of patent right due to non-payment of annual fee