CN107909788A - A kind of wireless kilowatt meter reading-out system based on LoRa - Google Patents
A kind of wireless kilowatt meter reading-out system based on LoRa Download PDFInfo
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- CN107909788A CN107909788A CN201711021972.9A CN201711021972A CN107909788A CN 107909788 A CN107909788 A CN 107909788A CN 201711021972 A CN201711021972 A CN 201711021972A CN 107909788 A CN107909788 A CN 107909788A
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- ammeter
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
- H04L2012/445—Star or tree networks with switching in a hub, e.g. ETHERNET switch
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a kind of wireless kilowatt meter reading-out system wireless based on LoRa, belongs to kilowatt meter reading-out system field, including：Background server；Concentrator, connects background server；At least one collector, connects concentrator and at least one first ammeter respectively；Concentrator, as node, forms LoRa Star Networks, and collection information and ammeter information is transmitted by different channels between concentrator and collector and by the avoidance mechanism that communicates between concentrator and the second ammeter as gateway, collector and the second ammeter.Beneficial effects of the present invention：Based on LoRa wireless communication techniques, using concentrator as gateway, LoRa Star Networks are formed as node using collector and the second ammeter, have communication distance remote, strong antijamming capability, the networking low in energy consumption fast etc. a little, can sound node management, ensure system longtime running do not malfunction；By the avoidance mechanism that communicates, realize that rational channel confliction avoids mechanism, ensure that wireless channel does not conflict, ensure the stabilization of data transfer.
Description
Technical field
The present invention relates to kilowatt meter reading-out system technical field, more particularly to a kind of wireless kilowatt meter reading-out system based on LoRa.
Background technology
Current radio meter register unit is mostly to use 2.4G and 3G/4G wireless communication techniques, and the 2.4G communication technologys are mostly bases
In MESH topological structures, it is necessary to just can guarantee that data stabilization is effectively transmitted by multilevel relay, while MESH topological structures
It is high current radio meter register cellular construction complexity, power consumption have just been doomed.
LoRa wireless communication techniques have not been used in existing radio meter register unit.In Application No. 201510612690.0
In long-distance wireless meter-reading system of the patent based on Zigbee and GPRS, the ammeter number in building is completed using zigbee wireless communications
According to collection, by zigbee wireless technologys, using mesh topological structures, complete to gather all ammeters in building in real time
With timing acquiring.
Existing Wireless Meter Reading Technology uses wifi, zigbee and 3G/4G wireless technology of 2.4G more.For the former
2.4G, the communication transmission range is nearer, and antijamming capability is weak, and after being stopped by multi-layer walls, distance is even more to beat greatly
Discount, therefore need in building just to ensure full floor covering using multilevel relay mode, and what multilevel relay was formed
Mesh structures also just bring complicated, the problems such as power consumption is high, at the same multilevel relay also directly result in data transmission period into
Increase again, real-time reduces；For the latter 3G/4G, the wireless technology, though the above ground portion in building can be covered substantially, it is right
Cannot then ensure well in basement etc., at the same its monthly monthly rent will also bring huge cost In the view of for a long time；In addition it is existing
Some kilowatt meter reading-out systems can not realize that rational channel confliction avoids mechanism, can not ensure the stabilization of data transfer.
The content of the invention
For problems of the prior art, the present invention provides a kind of meter-reading module based on LoRa wireless technologys.
The present invention adopts the following technical scheme that：
A kind of wireless kilowatt meter reading-out system wireless based on LoRa, the wireless kilowatt meter reading-out system include：
Multiple ammeters, the multiple ammeter include at least one first ammeter and at least one second ammeter, each described
Ammeter is respectively used to that ammeter information is gathered and uploaded according to acquisition；
Background server, the background server are used to export the acquisition and receive the ammeter information；
Concentrator, the concentrator are used to receive the acquisition that the background server is sent and export, and
For receiving the ammeter information and sending to the background server；
At least one collector, each collector connect the concentrator respectively, each first ammeter difference
A unique collector is connected, each collector is respectively used to receive the acquisition that the concentrator is sent
And the ammeter information is gathered according to corresponding first ammeter of acquisition control, and the ammeter information is sent
To the concentrator；
Each second ammeter connects the concentrator respectively, and each second ammeter is respectively used to receive the collection
The acquisition of middle device transmission simultaneously gathers the ammeter information according to the acquisition, and the ammeter information is sent
To the concentrator；
The concentrator as node, forms LoRa Star Networks as gateway, the collector and second ammeter,
And pass through the avoidance mechanism that communicates between the concentrator and the collector and between the concentrator and second ammeter
The collection information and the ammeter information is set to be transmitted by different channels.
Preferably, the concentrator includes：
Concentrator body, the concentrator body are used to receiving the acquisition that the background control end is sent and defeated
Go out, and for receiving the ammeter information and sending to the background control end；
Concentrator communication module, concentrator body described in the concentrator communication module wired connection, the concentrator lead to
Letter module is used to receive the concentrator body output acquisition and exports, and for receiving the ammeter information simultaneously
Send to the concentrator body, and for forming the LoRa Star Networks.
Preferably, the collector includes：
Collector communication module, the collector communication module are used to receive the described of the concentrator communication module transmission
Acquisition simultaneously exports, and for receiving the ammeter information and sending to the concentrator communication module, and for structure
Into the LoRa Star Networks；
Collector body, collector communication module described in the collector body wired connection and first ammeter, institute
Collector body is stated to be used to receive the acquisition and gathered according to corresponding first ammeter of acquisition control
The ammeter information, and for receiving the ammeter information and sending to the collector communication module.
Preferably, connected between the collector body and first ammeter by RS485 buses.
Preferably, second ammeter includes：
Second ammeter communication module, the second ammeter communication module are used to receive what the concentrator communication module was sent
The acquisition simultaneously controls corresponding second ammeter to gather the ammeter information, and for receiving the ammeter information
And send to the concentrator communication module, and for forming the LoRa Star Networks；
Second ammeter body, the second ammeter communication module described in the second ammeter body wired connection, second electricity
Table body is used to receiving the acquisition and gathers the ammeter information according to the acquisition, and for by the electricity
Table information is simultaneously sent to the second ammeter communication module.
Preferably, wired connection between the second ammeter communication module and the second ammeter body.
Preferably, the collector communication module has two kinds of modules of sending mode and receiving module；
The collector communication module in the case where there is data sending in a receive mode；
The collector communication module no data send in the case of in a receive mode.
Preferably, the collector communication module in start after the power is turned on, first read preset EEPROM configuration parameters and complete
Into initialization, send networking claim frame then to the concentrator communication module and sent out receiving the concentrator communication module
Completed after the networking acknowledgement frame sent into net operation, and fault message is exported when not receiving the networking acknowledgement frame.
Preferably, the collector communication module judge the source for receiving data be the concentrator communication module or
Second ammeter, and whether the data for judging to receive successively when judging result is concentrator communication module meet LoRa and lead to
Whether the address in letter agreement and the data received is itself, and when judging result is all to be according to the data received
Operated accordingly, and abandon the data received when the judgment result is No.
Beneficial effects of the present invention：The wireless kilowatt meter reading-out system of the present invention is based on LoRa wireless communication techniques, is made with concentrator
For gateway, LoRa Star Networks are formed as node using collector and the second ammeter, have that communication distance is remote, antijamming capability
By force, low in energy consumption, networking is fast etc. a little, can sound node management, ensure that system longtime running does not malfunction；Pass through the avoidance machine that communicates
System, realizes that rational channel confliction avoids mechanism, ensure that wireless channel does not conflict, ensure the stabilization of data transfer.
Brief description of the drawings
Fig. 1 is that the function module based on wireless kilowatt meter reading-out system wireless LoRa is shown in a preferred embodiment of the present invention
It is intended to.
Embodiment
It should be noted that in the case where there is no conflict, following technical proposals, can be mutually combined between technical characteristic.
The embodiment of the present invention is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of wireless kilowatt meter reading-out system wireless based on LoRa, above-mentioned wireless kilowatt meter reading-out system include：
Multiple ammeters, above-mentioned multiple ammeters include at least one first ammeter 8 and at least one second ammeter, each above-mentioned
Ammeter is respectively used to that ammeter information is gathered and uploaded according to acquisition；
Background server 1, above-mentioned background server 1 are used to export above-mentioned acquisition and receive above-mentioned ammeter information；
Concentrator, above-mentioned concentrator are used to receive the above-mentioned acquisition that above-mentioned background server 1 is sent and export, and
Supreme background server 1 is stated for receiving above-mentioned ammeter information and sending；
At least one collector, each above-mentioned collector connect above-mentioned concentrator respectively, and each above-mentioned first ammeter 8 is distinguished
A unique above-mentioned collector is connected, each above-mentioned collector is respectively used to receive the above-mentioned acquisition that above-mentioned concentrator is sent
And control corresponding above-mentioned first ammeter 8 to gather above-mentioned ammeter information according to above-mentioned acquisition, and above-mentioned ammeter information is sent out
Send to above-mentioned concentrator；
Each above-mentioned second ammeter connects above-mentioned concentrator respectively, and each above-mentioned second ammeter is respectively used to receive above-mentioned collection
The above-mentioned acquisition of middle device transmission simultaneously gathers above-mentioned ammeter information according to above-mentioned acquisition, and above-mentioned ammeter information is sent
To above-mentioned concentrator；
Above-mentioned concentrator as node, forms LoRa Star Networks as gateway, above-mentioned collector and above-mentioned second ammeter,
And pass through the avoidance mechanism that communicates between above-mentioned concentrator and above-mentioned collector and between above-mentioned concentrator and above-mentioned second ammeter
Above-mentioned collection information and above-mentioned ammeter information is set to be transmitted by different channels.
In the present embodiment, based on LoRa wireless communication techniques, using concentrator as gateway, with collector and the second ammeter
LoRa Star Networks are formed as node, have that communication distance remote, strong antijamming capability, networking low in energy consumption are fast etc. a little, can
Sound node management, ensures that system longtime running does not malfunction；By the avoidance mechanism that communicates, realize that rational channel confliction avoids machine
Rational communication protocol is improved in system, design, is ensured the stability and security that concentrator communicates with collector 4, be ensure that wireless channel
Do not conflict, ensure the stabilization of data transfer.
Powerful node administration algorithm is devised, the concentrator of a kilowatt meter reading-out system can manage up to 200 collectors
With the second ammeter, ensure that each node is stablized and do not go offline.
In preferred embodiments of the present invention, above-mentioned concentrator includes：
Concentrator body 2, above-mentioned concentrator body 2 is for receiving the above-mentioned acquisition of above-mentioned background control end transmission simultaneously
Output, and supreme state background control end for receiving above-mentioned ammeter information and sending；
Concentrator communication module 3, the above-mentioned above-mentioned concentrator body 2 of 3 wired connection of concentrator communication module, above-mentioned concentrator
Communication module 3 exports above-mentioned acquisition and exports for receiving above-mentioned concentrator body 2, and for receiving above-mentioned ammeter letter
Cease and send it is supreme state concentrator body 2, and for forming above-mentioned LoRa Star Networks.
In the present embodiment, concentrator communication module 3 receives the acquisition that concentrator body 2 is sent, and by node
Communication module (collector communication module 6, the second ammeter communication module 4) copy reading is transmitted to concentrator body to ammeter information.
Each concentrator only has a lora without order wire unit (concentrator communication module 3), can at the same time and collector
Communication module 6, the second ammeter communication module communication 4, wherein, concentrator belongs to national standard equipment, for background server 1
Pass through GPRS transmission data.
In preferred embodiments of the present invention, above-mentioned collector includes：
Collector communication module 6, above-mentioned collector communication module 6 are used to receive what above-mentioned concentrator communication module 3 was sent
Above-mentioned acquisition simultaneously exports, and supreme states concentrator communication module 3, Yi Jiyong for receiving above-mentioned ammeter information and sending
In the above-mentioned LoRa Star Networks of composition；
Collector body 7, the above-mentioned above-mentioned collector communication module 6 of 7 wired connection of collector body and above-mentioned first ammeter
8, above-mentioned collector body 7 is used to receive above-mentioned acquisition and controls corresponding above-mentioned first ammeter according to above-mentioned acquisition
The 8 above-mentioned ammeter informations of collection, and supreme state collector communication module 6 for receiving above-mentioned ammeter information and sending.
In the present embodiment, collector communication module 6 is installed on collector body 7 that (collector belongs to national standard and sets
It is standby) collector connects multiple first ammeters 8 by RS485 again, realize a radio channel connection polylith ammeter.
In preferred embodiments of the present invention, pass through RS485 buses between above-mentioned collector body 7 and above-mentioned first ammeter 8
Connection.
In preferred embodiments of the present invention, above-mentioned second ammeter includes：
Second ammeter communication module 4, above-mentioned second ammeter communication module 4 are sent out for receiving above-mentioned concentrator communication module 3
Corresponding above-mentioned second ammeter of above-mentioned acquisition and control sent gathers above-mentioned ammeter information, and for receiving above-mentioned ammeter
Information and send it is supreme state concentrator communication module 3, and for forming above-mentioned LoRa Star Networks；
Second ammeter body 5, the above-mentioned second ammeter communication module 4 of 5 wired connections of above-mentioned second ammeter body, above-mentioned second
Ammeter body 5 is used to receiving above-mentioned acquisition and gathers above-mentioned ammeter information according to above-mentioned acquisition, and for by
State ammeter information and send and supreme state the second ammeter communication module 4.
In the present embodiment, the second ammeter communication module 4 be installed on the second ammeter body 5 (the second ammeter belong to country
Standard device).
It is wired between above-mentioned second ammeter communication module 4 and above-mentioned second ammeter body 5 in preferred embodiments of the present invention
Connection.Second ammeter communication module 4 is just mounted on the second ammeter body 5 in fact, the relation between them and (collector
Relation between body 7, collector communication module 6 is identical) it is actually serial ports rather than 485.
In preferred embodiments of the present invention, above-mentioned collector communication module 6 has two kinds of moulds of sending mode and receiving module
Block；
Above-mentioned collector communication module 6 in the case where there is data sending in a receive mode.
Above-mentioned collector communication module 6 in the case where there is data sending in a receive mode.
Do not network not and be at sending mode, but need just to be switched to sending mode when sending data, remaining time
All it is reception pattern, this mode is just always maintained at when program powers on operation.
Above-mentioned collector communication module 6 after the power is turned on, first reads preset EEPROM configuration parameters and completes initial in start
Change, send networking claim frame then to above-mentioned concentrator communication module 3 and receiving what above-mentioned concentrator communication module 3 was sent
Completed after networking acknowledgement frame into net operation, and fault message is exported when not receiving above-mentioned networking acknowledgement frame.
The source that above-mentioned collector communication module 6 judges to receive data is above-mentioned concentrator communication module 3 or above-mentioned
Second ammeter, and whether the data for judging to receive successively when judging result is concentrator communication module 3 meet LoRa communications
Whether the address in agreement and the data received is itself, and judging result all for be when according to the data received into
The corresponding operation of row, and the data received are abandoned when the judgment result is No.
In the present embodiment, the start of collector communication module 6 powers on, and first reads EEPROM configuration parameters, completes initialization,
Networking frame is sent to gateway, request networks, if receiving the reply frame of gateway, completes into net operation, into working status.
If no data, which is sent, then enters reception pattern, data source is judged if receiving after data, if from string
Mouthful, then it is followed successively by a group LoRa communication protocol packets, encryption data bag, RF radio frequencies and sends, sends data to gateway.
If coming from radio frequency interface, first rf data is judged whether successively to meet LoRa communication protocols, judges radio frequency bag
Whether middle address is itself, judges data frame type, preserves corresponding data, is parsed and replied, if above procedure is sentenced
It is no to break, then abandons the data.The data of preservation are then handled accordingly according to data type, if data then by the data
Exported by serial ports, inquire about, then link-quality is gone out by RF radio-frequency transmissions if link.
Wireless kilowatt meter reading-out system operationally, concentrator communication module 3,6 and second ammeter of collector communication module communication mould
Block 4 can upload Local Communication Module operating status to background server 1, and background server 1 determines whether to receive concentrator hair
The complete data frame come, if it is handles data frame, is abandoned if all.In addition, collector can judge the first electricity
Whether table 8 uploads complete data frame, if it is sends complete data frame to concentrator, if otherwise abandoned.
By explanation and attached drawing, the exemplary embodiments of the specific structure of embodiment are given, it is smart based on the present invention
God, can also make other conversions.Although foregoing invention proposes existing preferred embodiment, however, these contents are not intended as
Limitation.
For a person skilled in the art, after reading described above, various changes and modifications undoubtedly will be evident.
Therefore, appended claims should regard whole variations and modifications of the true intention and scope that cover the present invention as.Weighing
Any and all scope and content of equal value, are all considered as still belonging to the intent and scope of the invention in the range of sharp claim.
Claims (9)
1. a kind of wireless kilowatt meter reading-out system wireless based on LoRa, it is characterised in that the wireless kilowatt meter reading-out system includes：
Multiple ammeters, the multiple ammeter include at least one first ammeter and at least one second ammeter, each ammeter
It is respectively used to that ammeter information is gathered and uploaded according to acquisition；
Background server, the background server are used to export the acquisition and receive the ammeter information；
Concentrator, the concentrator is used to receive the acquisition that the background server is sent and exports, and is used for
Receive the ammeter information and send to the background server；
At least one collector, each collector connect the concentrator respectively, and each first ammeter connects respectively
One unique collector, each collector are respectively used to receive the acquisition that the concentrator is sent and root
The ammeter information is gathered according to corresponding first ammeter of acquisition control, and the ammeter information is sent to institute
State concentrator；
Each second ammeter connects the concentrator respectively, and each second ammeter is respectively used to receive the concentrator
The acquisition of transmission simultaneously gathers the ammeter information according to the acquisition, and the ammeter information is sent to institute
State concentrator；
The concentrator, as node, forms LoRa Star Networks, and institute as gateway, the collector and second ammeter
State between concentrator and the collector and the concentrator and second ammeter between institute made by the avoidance mechanism that communicates
State collection information and the ammeter information is transmitted by different channels.
2. wireless kilowatt meter reading-out system according to claim 1, it is characterised in that the concentrator includes：
Concentrator body, the concentrator body are used to receive the acquisition that the background control end is sent and export,
And for receiving the ammeter information and sending to the background control end；
Concentrator communication module, concentrator body described in the concentrator communication module wired connection, the concentrator communication mould
Block is used to receive the concentrator body output acquisition and exports, and for receiving the ammeter information and sending
To the concentrator body, and for forming the LoRa Star Networks.
3. wireless kilowatt meter reading-out system according to claim 2, it is characterised in that the collector includes：
Collector communication module, the collector communication module are used to receive the collection that the concentrator communication module is sent
Order and export, and for receiving the ammeter information and sending to the concentrator communication module, and for forming
State LoRa Star Networks；
Collector body, collector communication module described in the collector body wired connection and first ammeter, it is described to adopt
Storage body is used to receive the acquisition and according to the corresponding first ammeter collection of acquisition control
Ammeter information, and for receiving the ammeter information and sending to the collector communication module.
4. wireless kilowatt meter reading-out system according to claim 3, it is characterised in that the collector body and first ammeter
Between connected by RS485 buses.
5. wireless kilowatt meter reading-out system according to claim 3, it is characterised in that second ammeter includes：
Second ammeter communication module, the second ammeter communication module are used to receive the described of the concentrator communication module transmission
Acquisition simultaneously controls corresponding second ammeter to gather the ammeter information, and concurrent for receiving the ammeter information
Send to the concentrator communication module, and for forming the LoRa Star Networks；
Second ammeter body, the second ammeter communication module described in the second ammeter body wired connection, the second ammeter sheet
Body is used to receive the acquisition and gathers the ammeter information according to the acquisition, and for the ammeter to be believed
Cease and send to the second ammeter communication module.
6. wireless kilowatt meter reading-out system according to claim 5, it is characterised in that the second ammeter communication module and described
Wired connection between two ammeter bodies.
7. wireless kilowatt meter reading-out system according to claim 5, it is characterised in that the collector communication module, which has, sends mould
Two kinds of modules of formula and receiving module；
The collector communication module in the case where there is data sending in a receive mode
The collector communication module no data send in the case of in a receive mode.
8. wireless kilowatt meter reading-out system according to claim 7, it is characterised in that the collector communication module is powered in start
Afterwards, preset EEPROM configuration parameters are first read and complete to initialize, sends to network then to the concentrator communication module and asks
Seek frame and completed after the networking acknowledgement frame of the concentrator communication module transmission is received into net operation, and do not receive institute
Fault message is exported when stating networking acknowledgement frame.
9. wireless kilowatt meter reading-out system according to claim 8, it is characterised in that the collector communication module judges to receive
The source of data is the concentrator communication module or second ammeter, and when judging result is concentrator communication module
Whether the address whether data for judging to receive successively meet in LoRa communication protocols and the data received is itself, and
Operated accordingly according to the data received when judging result is all to be, and abandon receive when the judgment result is No
Data.
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Cited By (13)
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| CN108877180A (en) * | 2018-07-13 | 2018-11-23 | 河南汇纳科技有限公司 | A kind of intelligent meter data recording system based on LoRa wireless network |
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| CN112309100A (en) * | 2020-10-28 | 2021-02-02 | 广东电网有限责任公司 | Data acquisition method and device, computer equipment and storage medium |
| CN113129570A (en) * | 2019-12-30 | 2021-07-16 | 云丁网络技术(北京)有限公司 | Intelligent electric meter |
| CN114025247A (en) * | 2021-09-17 | 2022-02-08 | 北京中电飞华通信有限公司 | Power utilization information acquisition method and system |
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