CN206301477U - A kind of meter-reading module based on lora wireless sense networks - Google Patents
A kind of meter-reading module based on lora wireless sense networks Download PDFInfo
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- CN206301477U CN206301477U CN201621479051.8U CN201621479051U CN206301477U CN 206301477 U CN206301477 U CN 206301477U CN 201621479051 U CN201621479051 U CN 201621479051U CN 206301477 U CN206301477 U CN 206301477U
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- lora
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Abstract
The utility model discloses a kind of meter-reading module based on lora wireless sense networks,Including PC,Some ammeters and the gateway node being connected with pc by serial ports,Ammeter is connected with lora modules and is used as routing node by serial ports,Ammeter gives lora module for power supply,Lora modules include mcu and radio frequency chip,Radio frequency chip is connected with mcu,Pass through radio frequency chip networking between lora modules and lora modules,Lora modules pass through radio frequency chip networking with gateway node,Mutual networking between described lora modules,Higher level's tie point of lora modules can also be lora modules,While solving to check meter problem,End-to-end low transmission time delay communication can be ensured,Simultaneously,Extensive,Possesses high reliable communication ability under high density node arrangement scene,It is high with the network coverage,Flexible structure,Reliability is high,Highly versatile,Construction laying is simple,Advantage easy to maintenance.
Description
Technical field
The utility model belongs to the control device field of wireless telecommunications, and in particular to a kind of based on lora wireless sense networks
Meter-reading module.
Background technology
Use many gauge tables, such as voltameter, water meter, gas meter, flow meter in the modern life, meter reading method have manual metering,
Automatic data logging, wherein automatic data logging mode include RS485 bus modes, low voltage power line carrier technical approach, GSM/GPRS/
Cdma communication mode, radio meter register etc., these modes more or less have weak point, such as RS485 bus modes are checked meter and had
Construction installation work amount is big, not easy care, the problem for being not suitable for checking meter on a large scale, and low voltage power line carrier technical approach is checked meter load
Ripple signal is easily disturbed, and GSM/GPRS/CDMA communication modes hardware cost of checking meter is higher, and needs to pay operator's expense, general
Logical radio meter register is generally then that channel is single, is easily interfered with each other between the ammeter node between each area, uploads data not
Stabilization, in intelligent meter data recording industry, current radio meter register has accounted for quite heavy status, and existing radio meter register scheme fsk are adjusted
, there is communication distance short in technology processed, it is impossible to the problem for complete communication relaying to complicated scene, being easily disturbed.
Utility model content
The purpose of this utility model is to provide a kind of meter-reading module based on lora wireless sense networks, is solving to check meter to ask
While topic, it is ensured that end-to-end low transmission time delay communication, meanwhile, possess height under extensive, high density node arrangement scene
Reliable communication ability, with the network coverage is high, flexible structure, reliability high, highly versatile, construction laying be simple, maintenance side
Just advantage.
To achieve these goals, the utility model uses following technical scheme：It is a kind of based on lora wireless sense networks
Meter-reading module, including PC, some ammeters and the gateway node that is connected with pc by serial ports, ammeter are connected with lora moulds by serial ports
Used as routing node, ammeter gives lora module for power supply to block, and lora modules include mcu and radio frequency chip, and radio frequency chip connects with mcu
Connect, by radio frequency chip networking between lora modules and lora modules, lora modules pass through radio frequency chip networking with gateway node,
Gateway node obtains the wireless data order on pc, and the lora wireless sense networks being made up of lora modules are handed down to ammeter, electricity
Table returns data to gateway node by lora wireless sense networks, and gateway node is by serial ports data transfer to pc, lora moulds
Block is the pith for expanding lora wireless sense networks, and lora modules carry data routing function, and such lora is wirelessly passed
Sense net can meet ammeter and be on a grand scale, or the distance between ammeter is quite remote, and this pattern is used can cause networking
Scale significantly expands.
Concentrator is additionally provided between the gateway node and pc, gateway node is connected with concentrator by serial ports, concentrator
Module is connected by EPON or Ethernet or GPRS with pc, and this programme is managed collectively electricity using a Ge Tai areas using a concentrator
The pattern of table, the ammeter data signal for collecting passes through various data transfer passages such as EPON or Ethernet or GPRS by concentrator
Upload to power information acquisition system main website, i.e. pc ends.
Mutual networking between described lora modules, higher level's tie point of lora modules can also be lora modules, as
Lora modules, the use of multiple lora modules can increase multiple independent networks, reduce the complexity of whole net, increase wireless
The networking scale of networking, such connected mode is useful in that ammeter is more dispersed, the long platform area in distance interval, can cause
Scattered ammeter module group has multiple independent sub-networks in a wireless topology network with a network, does not interfere with each other, independent
Work.
The serial ports is RS485 or RS232.
Lora wireless sense networks run on the public metering frequency ranges of 470MHz-510MHz, with reference to time division synchronous and Frequency Hopping Multiple Access FHMA
The communication technology, with efficiency of frequency employment and network robustness higher, it is ensured that end-to-end low transmission time delay communication, meanwhile,
Possesses high reliable communication ability under extensive, high density node arrangement scene.System is using passage Frequency-hopping Communication Technology, ingenious
Ground utilizes different frequency hop sequences and channel network identification technology, intertexture Error Correction of Coding etc. so that network possesses very strong avoiding
Net the ability of inside and outside Radio frequency interference.Meanwhile, lora modules possess band link-quality judgement in real time from link reality as routing node
When self-optimizing relay function, the relaying series of support up to 16 grades, possess large area covering application demand, with the network coverage
Height, flexible structure, reliability are high, highly versatile, laying advantage simple, easy to maintenance of constructing, using distribution topology tissue
Relation, allows each routing node to find multiple available father's routing nodes and sets up more than two links to reach space
On various changes, be highly suitable for power industry radio meter register application, what is connected by serial ports when lora modules is not ammeter
But street-lamp node controller is the control for being capable of achieving street lamp.
LORA compares tradition FSK technologies, with many advances：
1.Lora is a special spread spectrum, is developed from World War II Radar Technology.
2. in the noise by spread spectrum signal extension to broader bandwidth, spreading gain is obtained.
3. signal is submerged in noise, and recipient only needs to recover letter from noise by knowing orthogonal spreading sequence
Number.
4. sensitivity more more preferable than FSK.
5. same channel can be used when spreading factor is different, and frequency can be multiplexed.
6. wideband spread spectrum techniques, anti-multipath, asthenia ability is strong.
7. pair frequency shift (FS) is insensitive.
The beneficial effects of the utility model are：While solving to check meter problem, it is ensured that end-to-end low transmission time delay is led to
Letter, while possess high reliable communication ability under extensive, high density node arrangement scene, with the network coverage is high, structure
Flexibly, the advantage that reliability is high, highly versatile, construction laying are simple, easy to maintenance.
Brief description of the drawings
Fig. 1 is a kind of principle schematic of the present utility model.
Fig. 2 is another principle schematic of the present utility model.
In figure：Pc1, ammeter 2, gateway node 3, lora modules 4, concentrator 5.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, a kind of meter-reading module based on lora wireless sense networks, including pc1, some ammeters 2 and by string
The gateway node 3 that mouth is connected with pc1, ammeter 2 is connected with lora modules 4 and is used as routing node by serial ports, and ammeter 2 gives lora moulds
Block 4 is powered, and lora modules 4 include mcu and radio frequency chip, and radio frequency chip is connected with mcu, between lora modules 4 and lora modules 4
By radio frequency chip networking, with gateway node 3 by radio frequency chip networking, gateway node 3 obtains the nothing on pc1 to lora modules 4
Line data command, the lora wireless sense networks being made up of lora modules 4 are handed down to ammeter 2, and ammeter 2 passes through lora wireless sensings
Net returns data to gateway node 3, gateway node 3 by serial ports data transfer to pc1, lora modules 4 be expansion lora without
The pith of line Sensor Network, lora modules 4 carry data routing function, and such lora wireless sense networks can meet electricity
Table 2 is on a grand scale, or the distance between ammeter 2 is quite remote, and this pattern is used can be so that networking scale significantly expands
Greatly.
Mutual networking between described lora modules 4, higher level's tie point of lora modules 4 can also be lora modules 4, make
It is lora modules 4, the use of multiple lora modules 4 can increase multiple independent networks, reduce the complexity of whole net, increase
The networking scale of wireless networking, such connected mode is useful in that ammeter 2 is more dispersed, the long platform area in distance interval, can
To cause the scattered module group of ammeter 2 in a wireless topology network, there are multiple independent sub-networks with a network, do not do mutually
Disturb, work independently.
Lora wireless sense networks run on the public metering frequency ranges of 470MHz-510MHz, with reference to time division synchronous and Frequency Hopping Multiple Access FHMA
The communication technology, with efficiency of frequency employment and network robustness higher, it is ensured that end-to-end low transmission time delay communication, meanwhile,
Possesses high reliable communication ability under extensive, high density node arrangement scene.System is using passage Frequency-hopping Communication Technology, ingenious
Ground utilizes different frequency hop sequences and channel network identification technology, intertexture Error Correction of Coding etc. so that network possesses very strong avoiding
Net the ability of inside and outside Radio frequency interference.Meanwhile, lora modules 4 possess band link-quality judgement in real time from link as routing node
Real-time self-optimizing relay function, the relaying series of support possesses the application demand of large area covering, with the network coverage up to 16 grades
Rate is high, flexible structure, reliability high, highly versatile, construction laying advantage simple, easy to maintenance, using distribution topology group
Relation is knitted, is allowed each routing node to find multiple available father's routing nodes and is set up more than two links to reach sky
Between on various changes, be highly suitable for power industry radio meter register application, when lora modules 4 by serial ports connect be not electricity
Table 2 but street-lamp node controller are the control for being capable of achieving street lamp.
The utility model is while solving to check meter problem, it is ensured that end-to-end low transmission time delay communication, while advising greatly
Possess high reliable communication ability under mould, high density node arrangement scene, with the network coverage is high, flexible structure, reliability it is high,
Highly versatile, construction laying advantage simple, easy to maintenance.
Embodiment 2
As shown in Fig. 2 the present embodiment is identical with the other parts of embodiment 1, difference is the He of the gateway node 3
Concentrator 5 is additionally provided between pc1, gateway node 3 is connected with concentrator 5 by serial ports, the module of concentrator 5 passes through EPON or ether
Net or GPRS are connected with pc1, and this programme is managed collectively the pattern of ammeter 2 using a Ge Tai areas using a concentrator 5, collects
The data-signal of ammeter 2 uploaded to by various data transfer passages such as EPON or Ethernet or GPRS by concentrator 5 and use telecommunications
Breath acquisition system main website, i.e. pc1 ends.
Claims (4)
1. a kind of meter-reading module based on lora wireless sense networks, including pc (1), some ammeters (2) and by serial ports and pc (1)
The gateway node (3) of connection, it is characterised in that ammeter (2) is connected with lora modules (4) by serial ports, ammeter (2) gives lora moulds
Block (4) is powered, and lora modules (4) include mcu and radio frequency chip, and radio frequency chip is connected with mcu, lora modules (4) and lora moulds
By radio frequency chip networking between block (4), lora modules (4) are with gateway node (3) by radio frequency chip networking.
2. the described meter-reading module based on lora wireless sense networks according to claim 1, it is characterised in that described
Mutual networking between lora modules (4), higher level's tie point of lora modules (4) is lora modules (4) or gateway node (3).
3. the described meter-reading module based on lora wireless sense networks according to claim 1, it is characterised in that the net
Concentrator (5) is additionally provided between artis (3) and pc (1), gateway node (3) is connected with concentrator (5) by serial ports, concentrator
(5) module is connected by EPON or Ethernet or GPRS with pc (1).
4. the described meter-reading module based on lora wireless sense networks according to claim 1, it is characterised in that the string
Mouth is RS485 or RS232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479051.8U CN206301477U (en) | 2016-12-30 | 2016-12-30 | A kind of meter-reading module based on lora wireless sense networks |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621479051.8U CN206301477U (en) | 2016-12-30 | 2016-12-30 | A kind of meter-reading module based on lora wireless sense networks |
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| CN206301477U true CN206301477U (en) | 2017-07-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781396A (en) * | 2016-12-30 | 2017-05-31 | 杭州朗缤科技有限公司 | A kind of meter-reading module based on lora wireless sense networks |
| CN111510471A (en) * | 2019-12-31 | 2020-08-07 | 青岛乾程科技股份有限公司 | L ORA self-networking method of residential electricity meter reading network |
| CN111540188A (en) * | 2020-04-20 | 2020-08-14 | 南京理工大学 | LORA-based wireless remote meter reading system and method |
-
2016
- 2016-12-30 CN CN201621479051.8U patent/CN206301477U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781396A (en) * | 2016-12-30 | 2017-05-31 | 杭州朗缤科技有限公司 | A kind of meter-reading module based on lora wireless sense networks |
| CN111510471A (en) * | 2019-12-31 | 2020-08-07 | 青岛乾程科技股份有限公司 | L ORA self-networking method of residential electricity meter reading network |
| CN111540188A (en) * | 2020-04-20 | 2020-08-14 | 南京理工大学 | LORA-based wireless remote meter reading system and method |
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