CN208903414U - Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol - Google Patents
Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol Download PDFInfo
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- CN208903414U CN208903414U CN201820743737.6U CN201820743737U CN208903414U CN 208903414 U CN208903414 U CN 208903414U CN 201820743737 U CN201820743737 U CN 201820743737U CN 208903414 U CN208903414 U CN 208903414U
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- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000004891 communication Methods 0.000 title claims abstract description 53
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009432 framing Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol, including core processor, LoRa radio-frequency module, 485 communication modules, capacitance module and power module, the LoRa radio-frequency module is the communication module based on SX1278 chip, 485 communication module and core processor pass through the two-way communication of USART interface, the LoRa radio-frequency module and core processor are communicated by SPI interface two-way communication, 485 communication module and electric energy meter.The characteristics of the utility model is the wireless collection device based on LoRa technology, and low cost, remote, high sensitivity, easy to maintain and large capacity are included compared with conventional wireless techniques.
Description
Technical field
The utility model belongs to electric energy meter data acquisition and wireless communication field, and in particular to one kind meets southern china electricity
The LoRa Wireless data acquisition unit of net electric energy meter communication protocol.
Background technique
What CHINA SOUTHERN POWER company used takes control electric energy meter, acquires electric energy meter data by following several ways at present.
First way is connected to concentrator by power line for electric energy meter, and data are uploaded to metering automation by 4G network by concentrator
In system.Another way is connected to collector by 485 buses for electric energy meter, and collector is connected to concentration by power line
Device, concentrator upload to data in metering automation system by 4G network.All there is construction cost in both acquisition modes
The problems such as height, later maintenance is difficult, can not effectively cover remote countryside and old residential area.
LoRa (Long Range, abbreviation LoRa) belongs to low-power wan technology, is based on the remote of linear band spectrum modulation
Range wireless communication technologies.Compared to traditional small wireless technology, LoRa wireless network significantly increases communication distance, promotes number
According to the anti-interference and signal of transmission around barrier ability, one kind is provided for user and is able to achieve remote, inexpensive, high capacity, low
Power consumption, the wireless communication means of strong antijamming capability.
The LoRaWAN centralized meter-reading system star network framework good using maintenance simple extension, it is main from the point of view of logical architecture
Including node layer, base station layer, service layer, application layer；The acquired device of field data completes acquisition, passes through the LoRa mould on collector
Block is sent to LoRa gateway, and LoRa gateway receives data and is uploaded to LoRa centralized meter-reading system using private electric power or 4G public network and completes
Data protocol parsing, and forward the data to metering automation system.
Summary of the invention
The technical problem to be solved by the utility model is to provide one kind to meet south electric network electric energy meter communication protocol, passes
Defeated distance is remote, strong antijamming capability, LoRa Wireless data acquisition unit easy for installation.
The utility model uses following technical scheme to solve above-mentioned technical problem:
Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol, the collector connects LoRa net
It closes, the collector includes core processor, LoRa radio-frequency module, 485 communication modules and power module, and the power module connects
It is connected to capacitance module, the core processor integrates south electric network multifunctional electric energy meter communication protocol, can be read and meet Nan Wang electricity
Data are simultaneously sent to server by LoRa radio-frequency module by the electric energy meter data of network mark standard, the LoRa radio-frequency module be based on
The radio frequency unit of SX1278 chip, 485 communication module are 485 turns of serial data bus modules, 485 turns of serial ports numbers
According to bus module and core processor by the two-way communication of USART interface, the LoRa radio-frequency module passes through with core processor
SPI interface two-way communication, 485 communication module and electric energy meter direct communication.
Preferably, the collector further includes infrared module, and the infrared module and core processor pass through USART interface
Two-way communication.
Preferably, after the core processor reads the electric energy meter data in serial data bus, according to south electric network electricity
Energy table communication protocol carries out data parsing, and LoRaWAN agreement framing is pressed after parsing, sends valid data to LoRa radio frequency mould
Block, the LoRa radio-frequency module transfer data to gateway.
Preferably, the collector further includes clearing lamp, and the clearing lamp connects core by GPIO port
Processor.
Preferably, the core processor connects two LoRa radio-frequency modules, and one is receiving module, another is transmission
Module.
Preferably, the capacitance module size is 1.5F, when the power module is powered, the capacitance module electric power storage, and electricity
When source module powers off, the capacitance module electric discharge.
Preferably, the core processor is connected with real-time clock module, when the core processor acquires described real-time
Clock module data.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model is to fully meet the LoRa electric energy meter of CHINA SOUTHERN POWER electric energy meter communication protocol wirelessly to adopt
Storage has the characteristics that low cost, remote, high sensitivity, easy to maintain and large capacity compared with conventional wireless mechanics of communication；
2, the utility model collector increases infrared module, realizes the operation and maintenance function of collector；
3, two pieces of radio-frequency modules are arranged in the utility model collector, and one is receiving module, another is sending module, is mentioned
High-transmission efficiency；
4, the utility model collector uses 1.5F bulky capacitor module, and when external power supply is powered, capacitance module is in storage
Energy state gives entire collector to power by external power supply, and capacitance module is when external power supply disconnects, sustainable a period of time power supply
To collector, power failure alarm signal is sent for collector.
Detailed description of the invention
Fig. 1 is LoRa Wireless data acquisition unit hardware schematic.
Specific implementation
The course of work of the utility model is described further with reference to the accompanying drawing.
Such as Fig. 1: meeting the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol, be mainly used for electric energy meter and copy
Table, including core processor, LoRa radio-frequency module, 485 communication modules and power module, power module are connected with capacitance module.
Core processor integrates south electric network multifunctional electric energy meter communication protocol, and the electric energy meter data for meeting southern net power grid standard can be read
And data are sent to by LoRa radio-frequency module by server.
LoRa radio-frequency module is the radio frequency unit based on SX1278 chip, and 485 communication modules are 485 turns of serial data buses
By USART interface diconnected, LoRa radio-frequency module and core processor are logical for module, 485 communication modules and core processor
Cross SPI interface diconnected, 485 communication modules and electric energy meter Direct Communication.Core processor is read by 485 communication modules
After electric energy meter data, by LoRaWAN agreement framing, LoRa radio-frequency module is transferred data to, LoRa radio-frequency module connects gateway,
And transfer data to gateway.
Wherein, two LoRa radio-frequency modules be can connect on core processor, one is receiving module, another is transmission
Module, actual signal transmission in efficiency faster, stability it is more preferable.Power module is connected with capacitance module, capacitance module size
For 1.5F, when power module is powered, capacitance module electric power storage, when power module powers off, capacitance module discharges.Core processor connection
There is real-time clock module, core processor acquires the real-time clock module data.
The collector further includes infrared module and LED light, and infrared module and core processor are double by USART interface
To connection.LED light connects core processor by GPIO port.
Operational process is as follows:
The collector receives the data of gateway, and data are decrypted, and will read data and carries out agreement judgement and agreement
Encapsulation, composition meet the specification message of CHINA SOUTHERN POWER multifunctional electric energy meter communication protocol standard, are passed by 485 communication modules
It is sent to electric energy meter.
The collector is communicated by 485 communication modules and electric energy meter, after reading the data in 485 buses, according to electric energy
Table communication protocol carries out data parsing, and the data that copy reading is arrived are led to LoRa data by LoRaWAN agreement framing, core processor
It crosses SPI and sends LoRa radio-frequency module to, LoRa radio-frequency module sends the data to gateway.
The above work example only expresses a kind of working method of the utility model, and the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (7)
1. meeting the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol, which is characterized in that the collector connects
LoRa gateway is connect, the collector includes core processor, LoRa radio-frequency module, 485 communication modules and power module, the electricity
Source module is connected with capacitance module, and the core processor integrates south electric network electric energy meter communication protocol, can be read and meet southern net
Data are simultaneously sent to server by LoRa radio-frequency module by the electric energy meter data of power grid standard, and the LoRa radio-frequency module is base
In the radio frequency unit of SX1278 chip, 485 communication module is 485 turns of serial data bus modules, 485 turns of serial ports numbers
According to bus module and core processor by the two-way communication of USART interface, the LoRa radio-frequency module passes through with core processor
SPI interface two-way communication, 485 communication module and electric energy meter direct communication.
2. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is that the collector further includes infrared module, and the infrared module and core processor pass through USART interface two-way
Letter.
3. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is, after the core processor reads the electric energy meter data in serial data bus, communicates according to south electric network electric energy meter
Agreement carries out data parsing, and LoRaWAN agreement framing is pressed after parsing, sends valid data to LoRa radio-frequency module, described
LoRa radio-frequency module transfers data to gateway.
4. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is that the collector further includes clearing lamp, and the clearing lamp connects core processor by GPIO port.
5. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is that the core processor connects two LoRa radio-frequency modules, and one is receiving module, another is sending module.
6. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is that the capacitance module size is 1.5F, and when the power module is powered, the capacitance module electric power storage, power module breaks
When electric, the capacitance module electric discharge.
7. the LoRa Wireless data acquisition unit according to claim 1 for meeting south electric network electric energy meter communication protocol, special
Sign is that the core processor is connected with real-time clock module, and the core processor acquires the real-time clock module number
According to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743737.6U CN208903414U (en) | 2018-05-17 | 2018-05-17 | Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743737.6U CN208903414U (en) | 2018-05-17 | 2018-05-17 | Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol |
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| Publication Number | Publication Date |
|---|---|
| CN208903414U true CN208903414U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820743737.6U Expired - Fee Related CN208903414U (en) | 2018-05-17 | 2018-05-17 | Meet the LoRa Wireless data acquisition unit of south electric network electric energy meter communication protocol |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610603A (en) * | 2019-10-21 | 2019-12-24 | 贵州电网有限责任公司 | Electric energy meter concentrator communication module based on LoRa technique |
| CN111653075A (en) * | 2020-04-30 | 2020-09-11 | 广东电网有限责任公司 | A 230MHz LoRa collector device and its system |
| CN113727216A (en) * | 2021-09-09 | 2021-11-30 | 北京热力装备制造有限公司 | Data acquisition unit and meter reading system |
-
2018
- 2018-05-17 CN CN201820743737.6U patent/CN208903414U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610603A (en) * | 2019-10-21 | 2019-12-24 | 贵州电网有限责任公司 | Electric energy meter concentrator communication module based on LoRa technique |
| CN111653075A (en) * | 2020-04-30 | 2020-09-11 | 广东电网有限责任公司 | A 230MHz LoRa collector device and its system |
| CN113727216A (en) * | 2021-09-09 | 2021-11-30 | 北京热力装备制造有限公司 | Data acquisition unit and meter reading system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20210517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |