CN205881157U - Wireless collection equipment of photovoltaic power plant based on lora technique - Google Patents
Wireless collection equipment of photovoltaic power plant based on lora technique Download PDFInfo
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- CN205881157U CN205881157U CN201620819178.3U CN201620819178U CN205881157U CN 205881157 U CN205881157 U CN 205881157U CN 201620819178 U CN201620819178 U CN 201620819178U CN 205881157 U CN205881157 U CN 205881157U
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Abstract
The utility model provides a wireless collection equipment of photovoltaic power plant based on lora technique includes: the wireless collection module of a plurality of lora, lora radio network gateway, local data storage equipment and web high in the clouds, every the wireless collection module's of lora input and photovoltaic inverter both way junction, every the wireless collection module's of lora output pass through TDD communication module with the input both way junction of lora radio network gateway, the output of lora radio network gateway is connected to through internet or LAN web high in the clouds with local data storage equipment, wherein, every the wireless collection module of lora equal and other the wireless collection module wireless connection of lora, the utility model has the characteristics of simple structure, whole construction cost hang down, data transmission is simple, high -efficient.
Description
Technical field
This utility model relates to wireless collection technical field, wireless particularly to a kind of photovoltaic plant based on Lora technology
Collecting device.
Background technology
In by the end of June, 2015 China's photovoltaic add up installation and reached 35,000,000 kilowatts, it is contemplated that reach 43,000,000 kilowatts the end of the year, as
This calculates, the accumulative installation of the year two thousand twenty is to I haven't seen you for ages more than 100,000,000 kilowatts.The most how to ensure power generating quality and the lifting of photovoltaic plant
Income, efficient O&M and reduction O&M cost are the subject matter that photovoltaic plant faces at present.
The specific demand of photovoltaic plant:
The photovoltaic plant of one medium-scale such as about 30MW, the photovoltaic panel related to, header box, inverter, case become
Etc. number of devices can up to more than 100,000, management to single group of string, as minimum administrative unit, also can relate to the pipe of more than 50,000
Reason unit.
The O&M existence of photovoltaic plant following significantly feature and demand at present:
1) the collection information category required by photovoltaic plant intelligence O&M is many.As gathered irradiance, ambient temperature, cell panel
Temperature, wind direction, wind speed, running status that vasculum becomes, line voltage, electric current, the information such as generated energy.
2) the quantity kind of the collecting unit required by photovoltaic plant intelligence O&M is many.One medium-scale such as 30MW is left
Right photovoltaic plant, the number of devices such as the photovoltaic panel related to, header box, inverter, case change can up to more than 100,000.
3) region of photovoltaic plant is relatively wider, and region dispersion.Photovoltaic industry is not only related to large-scale ground power station, also
There is substantial amounts of distributed power station.
Current wire transmission mode and existing problems:
Current cable data acquisition technique is, inside each photovoltaic arrays, mainly by RS485 mode and inverter,
Intelligent junction box, case become and the communication such as measure and control device, environment monitor.Along with the quantity of bus locking equipment and transmission range
Increasing, the impact of interference causes RS485 communication mode to there will be the situation of instability.Meanwhile, the substantial amounts of RS485 communications cable
Laying the expenditure being also required to engineering and Material Cost, once communication abnormality, lookup physical circuit does fault location and will become one
The activity that complexity is the highest.
Current wireless transmission method and existing problems:
Traditional electric station gathers monitoring so that common three-phase electricity sublist and power station are special mostly, and terminal is hardware device, with
Generated energy acquisition platform, management analysis platform are Software of Master Station platform, with GPRS CDMA mechanics of communication logical for data transmission
Road, constitutes electric station electricity volume long-range Real-time Collection management system for monitoring.The region of photovoltaic plant is wide, the biggest quantity
Management object scale, the wireless technologys such as the quantity of collecting unit is in the majority, the most traditional GPRS paying traffic fee transmission gathers
The method of information cannot meet the demand of the intelligent O&M of photovoltaic plant.
Utility model content
The purpose of this utility model is intended at least solve one of described technological deficiency.
To this end, the purpose of this utility model is to propose a kind of photovoltaic plant wireless collection equipment based on Lora technology.
This utility model aims to solve the problem that defect and the problem of existence of the wired data transfer O&M mode of above-mentioned photovoltaic plant, and
Improve defect and the problem of existence of the wireless data transmission O&M mode of above-mentioned photovoltaic plant.
To achieve these goals, this utility model embodiment on the one hand provides a kind of photovoltaic electric based on Lora technology
Stand wireless collection equipment, it is characterised in that including: multiple Lora wireless acquisition module, Lora radio network gateway, local datastore
Equipment and Web high in the clouds, the input of each described Lora wireless acquisition module is bi-directionally connected with photovoltaic DC-to-AC converter, each described
The outfan of Lora wireless acquisition module is bi-directionally connected by the input of TDD communication module with described Lora radio network gateway, institute
State the outfan of Lora radio network gateway and be connected to described Web high in the clouds by the Internet or LAN and described local datastore sets
Standby.
Further, each described Lora wireless acquisition module all with other the described wireless company of Lora wireless acquisition module
Connect.
Further, described Lora radio network gateway includes: for Lora receive main equipment, for Lora receive from setting
Standby, broadcast module, described main equipment and described from equipment all with each described Lora wireless acquisition module wireless connections, described master
Equipment and described be connected with each other by local network LAN from equipment, described broadcast module connects that each described Lora is wireless to be adopted respectively
The outfan of collection module.
Further, described Lora wireless acquisition module includes main control module, spread spectrum module, DAC D/A converter module, interface
Module, current transducer, patrol and examine confirmation switch, described spread spectrum module, described DAC D/A converter module, described interface module, institute
Stating to patrol and examine and confirm that switch connects described main control module respectively, the outfan of described DAC D/A converter module connects current transducer.
Preferably, described main control module selects model to be the microcontroller chip of EFM32.
Preferably, described spread spectrum module selects model to be the spread spectrum chip of SX1278.
Preferably, described interface module selects RS485 interface.
Preferably, described DAC D/A converter module selects the chip of DAC7678SPW model.
Further, described TDD communication module includes multiple communication time period.
Preferably, described main equipment and the described W5500 chip that all includes from equipment, described W5500 chip and described Lora
Main control module in wireless acquisition module connects.
According to the photovoltaic plant wireless collection equipment based on Lora technology of this utility model embodiment, including multiple Lora
Wireless acquisition module, Lora radio network gateway, local data storage device and Web high in the clouds, use this structure, simple in construction, entirety
Construction cost is low, meets photovoltaic plant collection information category many, the demand that collecting unit quantity is many；Each Lora wireless collection
Module is by the Lora wireless acquisition module wireless connections with other, it is achieved that the function of MANET, it is ensured that the nothing of distance
Line transmits；The outfan of each Lora wireless acquisition module is by the input of TDD communication module with described Lora radio network gateway
It is bi-directionally connected, solves the data collision problem between Lora wireless acquisition module, it is ensured that Lora wireless acquisition module data
Stability and capacity of resisting disturbance；Lora radio network gateway have employed redundant mode, i.e. Lora radio network gateway is received by two Lora
Equipment forms, and is connected by LAN between two equipment, and one is main equipment, and it two is from equipment.If main equipment breaks down
Wireless collection signal cannot be received, notify the most immediately from equipment to replace main equipment, make total design more perfect；Pass through
Web high in the clouds, it is achieved that Remote configuration Lora wireless acquisition module parameter, the merit of remote upgrade Lora wireless acquisition module firmware
Can, remote control equipment, automatic report generation, the function such as warning.
Aspect and advantage that this utility model is additional will part be given in the following description, and part will be from explained below
In become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment
Become obvious and easy to understand, wherein:
Fig. 1 is the schematic diagram of the wireless collection equipment of photovoltaic plant based on Lora technology；
Fig. 2 is the composition schematic diagram of Lora wireless acquisition module of the present utility model；
Fig. 3 is the circuit theory diagrams of main control module of the present utility model；
Fig. 4 is the circuit theory diagrams of spread spectrum module of the present utility model；
Fig. 5 is the circuit theory diagrams of interface module of the present utility model；
Fig. 6 is the circuit theory diagrams of DAC D/A converter module of the present utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model
Restriction.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in this utility model.
Lora is a kind of technology being exclusively used in radio modem issued by Sheng Te company Semech, and Lora merges
Digital spread spectrum, Digital Signal Processing and forward error correction coding technology, have unprecedented performance, and Lora technology can be by low capacity
Data are transferred out by large-scale radio-frequency spectrum.Lora wireless acquisition module and Lora radio network gateway have employed exactly
Lora wireless communication technology, it is achieved that low-power consumption, long-distance transmissions.
As it is shown in figure 1, the wireless collection equipment of the photovoltaic plant based on Lora technology of this utility model embodiment includes
Multiple Lora wireless acquisition module 18, the TDD communication module 17 for time division duplex, Lora radio network gateway 12, local data are deposited
Storage equipment 10 and Web high in the clouds 11.Wherein, the input of Lora wireless acquisition module 18 is bi-directionally connected with photovoltaic DC-to-AC converter 19, adopts
Collection parameters, and the parameter collected is transferred to Lora radio network gateway 12, Lora radio network gateway by TDD communication module 17
The outfan of 12 is connected to Web high in the clouds 11 and local data storage device 10 by the Internet or LAN, Web high in the clouds 11 and then
It is analyzed parameters processing.
In an embodiment of the present utility model, Lora wireless acquisition module 18A and other Lora wireless acquisition module
18B wireless connections, it is possible to achieve multi-hop, the function of MANET.By this function, it is possible not only to Redundancy Design wireless link, with
Time can guarantee that being wirelessly transferred of distance.
Additionally, be two-way communication between Lora wireless acquisition module 18 and Lora radio network gateway 12, so Web high in the clouds 11 can
While by Lora radio network gateway 12 collection information, it is also possible to send control command.
Further, Lora wireless acquisition module 18 has inspection function.The route that i.e. patrol officer formulates according to Web high in the clouds 11
With the time to after patrolling and examining a little, by patrolling and examining confirmation switch in Lora wireless acquisition module 18, Web high in the clouds 11 interface display is patrolled and examined
As a result, can get simultaneously and patrol and examine report, and include the statistical report form of the data such as generated energy.
As in figure 2 it is shown, Lora wireless acquisition module 18 includes: main control module 20, spread spectrum module 21, DAC digital-to-analogue conversion 24
Module, interface module 22, current transducer 25, patrol and examine confirmation switch 23, spread spectrum module 21, interface module 22, patrol and examine confirmation and open
Closing 23 and connect main control module respectively, the outfan of DAC D/A converter module 24 connects current transducer 25.
The microcontroller chip that concrete main control module as shown in Figure 3 20 selects model to be EFM32, spread spectrum module as shown in Figure 4
21 selection models are the spread spectrum chip of SX1278, and interface module 22 selects RS485 interface, as shown in Figure 6 DAC number as shown in Figure 5
Mould modular converter 24 selects the chip of DAC7678SPW model.
Additionally, in order to avoid the data collision between multiple Lora wireless acquisition module 18, Lora radio network gateway 12 He
Communication between Lora wireless acquisition module 18 have employed the pattern of TDD, and this design ensure that Lora wireless acquisition module 18 number
According to stability and capacity of resisting disturbance.
Concrete, TDD communication module 17 includes multiple communication time period, and preferably four communication time period are in seconds, each
Communication time period interval 250ms, the data of same frequency range are divided into four periods be transmitted rather than all carry out within the same period
Transmission, thus avoids the data collision between multiple Lora wireless acquisition module 18.
Wherein, Lora radio network gateway 12 have employed redundant mode, i.e. Lora radio network gateway 12 is received equipment by two Lora
Composition, is connected by LAN14 between two equipment, and one is main equipment 13, and it two is from equipment 15.Main equipment 13 and from equipment
The 15 inner W5500 chips that all comprise, W5500 chip is connected with the main control module of above-mentioned Lora wireless acquisition module, if main equipment
13 break down cannot receive wireless collection signal, notifies the most immediately from equipment 15 to replace main equipment.Lora radio network gateway is also
Having a broadcast module 16, carry out the periodic broadcasting of particular frequency bands, each Lora wireless acquisition module 18 is entangled after being broadcasted
Positive clock, carries out synchronization with Lora radio network gateway 12.
In another embodiment of the present utility model, Web high in the clouds 11 has a following function:
1) function of Remote configuration each Lora wireless acquisition module 18 parameter, as gathered frequency, sends the cycle；
2) function of each radio link parameter of Remote configuration, such as the frequency range of wireless link, Lu Jing etc.；
3) function of remote upgrade Lora wireless acquisition module 18 firmware；
4) have to automatically generate and patrol and examine form, the function of the management data such as monthly magazine；
5) illumination parameter can be passed through, control photovoltaic power generation plate gradient and the function of swing；
6) function reported to the police, if having key equipment to occur abnormal, by sending short message by mobile phone, sends the form report of mail
Alert.
Operation principle:
Lora wireless acquisition module 18 gathers the parameters in photovoltaic DC-to-AC converter, and these parameters pass through DAC digital-to-analogue conversion
Module is converted to digital signal, and these digital signals are transferred to Lora radio network gateway by TDD communication module 17 by main control module
Main equipment 13, if main equipment 13 fault, notifies that Lora radio network gateway 12 is by W5500 chip, by this from equipment 15 immediately
A little signals pass through the Internet or local network transport to local data storage device 10 and Web high in the clouds 11, Lora radio network gateway 12 He
Being two-way communication between Web high in the clouds 11, control command is passed out after being analyzed these digital signals processing by Web high in the clouds 11
Go, perform warning, adjust the function such as equipment, firmware updating.
According to the photovoltaic plant wireless collection equipment based on Lora technology of this utility model embodiment, including multiple Lora
Wireless acquisition module, Lora radio network gateway, local data storage device and Web high in the clouds, use this structure, simple in construction, entirety
Construction cost is low, meets photovoltaic plant collection information category many, the demand that collecting unit quantity is many；Each Lora wireless collection
Module is by the Lora wireless acquisition module wireless connections with other, it is achieved that the function of MANET, by this function, it is ensured that
Being wirelessly transferred of distance；The outfan of each Lora wireless acquisition module is by TDD communication module and described Lora wireless network
The input closed is bi-directionally connected, and solves the data collision problem between Lora wireless acquisition module, it is ensured that Lora is wireless to be adopted
The stability of collection module data and capacity of resisting disturbance；Lora radio network gateway have employed redundant mode, i.e. Lora radio network gateway is by two
Individual Lora receives equipment composition, is connected by LAN between two equipment, and one is main equipment, and it two is from equipment.Set if main
Standby breaking down cannot receive wireless collection signal, notifies the most immediately from equipment to replace main equipment, makes total design more
Add perfect；By Web high in the clouds, it is achieved that Remote configuration Lora wireless acquisition module parameter, remote upgrade Lora wireless collection mould
The function of block firmware, remote control equipment, automatic report generation, the function such as warning.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Any one or more embodiments or example combine in an appropriate manner.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is without departing from this utility model to restriction of the present utility model
Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, revise, replace and
Modification.Scope of the present utility model is limited by claims and equivalent thereof.
Claims (8)
1. a photovoltaic plant wireless collection equipment based on Lora technology, it is characterised in that including: multiple Lora wireless collections
Module, Lora radio network gateway, local data storage device and Web high in the clouds, the input of each described Lora wireless acquisition module
Being bi-directionally connected with photovoltaic DC-to-AC converter, the outfan of each described Lora wireless acquisition module passes through TDD communication module with described
The input of Lora radio network gateway is bi-directionally connected, and the outfan of described Lora radio network gateway is connected to by the Internet or LAN
Described Web high in the clouds and described local data storage device；
Wherein, each described Lora wireless acquisition module all with other described Lora wireless acquisition module wireless connections；
Described Lora radio network gateway includes: for receive Lora wireless acquisition module data main equipment, for receive Lora without
Line acquisition module data from equipment, broadcast module, described main equipment and described adopt from equipment is all wireless with each described Lora
Collection module wireless connections, described main equipment and described be connected with each other by local network LAN from equipment, described broadcast module connects respectively
Connect the outfan of each described Lora wireless acquisition module.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 1, it is characterised in that described
Lora wireless acquisition module includes main control module, spread spectrum module, DAC D/A converter module, interface module, current transducer, patrols
Inspection confirms switch, described spread spectrum module, described DAC D/A converter module, described interface module, described in patrol and examine confirmation switch respectively
Connecting described main control module, the outfan of described DAC D/A converter module connects current transducer.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 2, it is characterised in that described master
Control module selects model to be the microcontroller chip of EFM32.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 2, it is characterised in that described expansion
Frequency module selects model to be the spread spectrum chip of SX1278.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 2, it is characterised in that described in connect
Mouth die block selects RS485 interface.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 2, it is characterised in that described
DAC D/A converter module selects the chip of DAC7678SPW model.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 1, it is characterised in that described
TDD communication module includes multiple communication time period.
Photovoltaic plant wireless collection equipment based on Lora technology the most according to claim 2, it is characterised in that described master
Equipment and the described W5500 chip that all includes from equipment, described W5500 chip and the master control mould in described Lora wireless acquisition module
Block connects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620819178.3U CN205881157U (en) | 2016-07-29 | 2016-07-29 | Wireless collection equipment of photovoltaic power plant based on lora technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620819178.3U CN205881157U (en) | 2016-07-29 | 2016-07-29 | Wireless collection equipment of photovoltaic power plant based on lora technique |
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| CN205881157U true CN205881157U (en) | 2017-01-11 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425878A (en) * | 2017-05-27 | 2017-12-01 | 南京泛和电力自动化有限公司 | Wireless communications method and wireless terminal for photovoltaic generation monitoring |
| CN107508702A (en) * | 2017-08-16 | 2017-12-22 | 胡莘 | Lora modules based on bluetooth are set and firmware upgrade system and method |
| CN108055099A (en) * | 2017-11-27 | 2018-05-18 | 北京智芯微电子科技有限公司 | Method, storage medium and the acquisition terminal during electric energy meter pair are carried out based on LoRa technologies |
| CN108961721A (en) * | 2018-08-28 | 2018-12-07 | 深圳大学 | The control system of intelligent switch panel |
| CN109756870A (en) * | 2017-11-08 | 2019-05-14 | 杭州立图智能科技有限公司 | A kind of radio transmission apparatus for industrial Internet of Things |
| CN109932967A (en) * | 2019-03-08 | 2019-06-25 | 苏州天一信德环保科技有限公司 | Environmental inspection assists law enforcement terminal |
| CN112399455A (en) * | 2019-08-16 | 2021-02-23 | 武汉所为科技有限公司 | Lora gateway control method and Lora communication system |
-
2016
- 2016-07-29 CN CN201620819178.3U patent/CN205881157U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425878A (en) * | 2017-05-27 | 2017-12-01 | 南京泛和电力自动化有限公司 | Wireless communications method and wireless terminal for photovoltaic generation monitoring |
| CN107425878B (en) * | 2017-05-27 | 2020-02-18 | 夏德华 | Wireless communication method and wireless terminal for photovoltaic power generation monitoring |
| CN107508702A (en) * | 2017-08-16 | 2017-12-22 | 胡莘 | Lora modules based on bluetooth are set and firmware upgrade system and method |
| CN109756870A (en) * | 2017-11-08 | 2019-05-14 | 杭州立图智能科技有限公司 | A kind of radio transmission apparatus for industrial Internet of Things |
| CN108055099A (en) * | 2017-11-27 | 2018-05-18 | 北京智芯微电子科技有限公司 | Method, storage medium and the acquisition terminal during electric energy meter pair are carried out based on LoRa technologies |
| CN108961721A (en) * | 2018-08-28 | 2018-12-07 | 深圳大学 | The control system of intelligent switch panel |
| CN109932967A (en) * | 2019-03-08 | 2019-06-25 | 苏州天一信德环保科技有限公司 | Environmental inspection assists law enforcement terminal |
| CN112399455A (en) * | 2019-08-16 | 2021-02-23 | 武汉所为科技有限公司 | Lora gateway control method and Lora communication system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20210729 |