CN206019758U - A kind of combustible gas metering arrangement based on LoRa - Google Patents
A kind of combustible gas metering arrangement based on LoRa Download PDFInfo
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- CN206019758U CN206019758U CN201621043543.2U CN201621043543U CN206019758U CN 206019758 U CN206019758 U CN 206019758U CN 201621043543 U CN201621043543 U CN 201621043543U CN 206019758 U CN206019758 U CN 206019758U
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Abstract
The utility model belongs to combustible gas metering arrangement and monitoring technology field, especially a kind of combustible gas metering arrangement and monitoring system based on LoRa.The combustible gas metering arrangement includes digital electronic unit, LoRa modules and controller, the utility model replaces traditional common WIFI module to carry out Wireless Data Transmission using LoRa modules, compared with traditional WiFi technology, LoRa modules are nearly free from energy consumption, and LoRa modules just can have the stand-by time up to 20 years using AA batteries；Meanwhile, compared with WIFI transmission means, LoRa modules are mainly run in global free frequency range（I.e. unauthorized frequency range）The characteristics of having signal coverage distance bigger, domestic gas metering device based on LoRa modules, the transmission range of 5 15km is can achieve in urban area, this means only to need the connection that a connecting node can achieve all terminal devices a block, this undoubtedly greatly reduces the networking cost of gas company.
Description
Technical field
The utility model belongs to combustible gas metering arrangement and monitoring technology field, more particularly to a kind of based on LoRa gas meterings
Device.
Background technology
Current gas meter, flow meter metering device is checked meter using human metering mode mostly, and this meter reading method needs to put into
Substantial amounts of manpower and materials, so as to cause to check meter, cost remains high；And the development with cellular network technologies, based on cellular network
Wireless Meter Reading Technology gradually grow up, be provided with wireless transport module gas meter, flow meter can pass through user family in route access
Cellular Networks or internet, and then gas metering data are conveyed directly to gas company's remote server, this greatly reduces copies
Telogenesis sheet；But most wireless transport module all has shorter transmission range（Such as WIFI modules, bluetooth module etc.）,
The terminal quantity that simultaneously relay transmission node can be simultaneously connected with is limited（Route as can at most connect 255 ends
End）, this results in needs to arrange very many relay transmission nodes in the face of ten hundreds of domestic consumer, so as to cause networking into
The problem of this rising.
Utility model content
In order to solve in current gas meter tool, wireless transport module transmission range is too short, needs the excessive relaying of setting to pass
The problem of defeated node, there is provided a kind of both can be long with transmission range, consume energy low based on LoRa technology（Long Range, referred to as
LoRa）Combustible gas metering arrangement.
For realizing that above goal of the invention, the utility model provide a kind of combustible gas metering arrangement based on LoRa, the combustion gas
Metering device includes digital electronic unit, LoRa modules, LoRa power modules and controller, the digital electronic unit, LORA
Module is connected with the controller simultaneously；The digital electronic unit is used for for the continuous data of gas meter, flow meter being converted to electronic data
And transmit to the controller；The LORA modules are used for wirelessly transmitting the electronic data to remote service
Device；LoRa power modules are used for being LoRa module for power supply.LoRa modules are that the ultra long haul low power consumption data based on below 1GHz is passed
Transferring technology（Long Range, abbreviation LoRa）Chip.Which receives sensitivity and has reached surprising -148dbm, and traditional
Sub-GHz chips are compared, and the highest receiving sensitivity of LoRa wireless transmission methods improves more than 20db, which ensure that network connects
Connect reliability；It is maintained as FSK using linear frequency modulation spread spectrum modulation technique（Frequency shift keying）The low-power consumption of modulation identical is special
Property, significantly increase communication distance again, while improve network efficiency and eliminate interference, i.e., the terminal of different frequency expansion sequences
Even if sent using identical frequency will not also interfere, the concentrator/gateway that therefore researches and develops on this basis simultaneously
（Concentrator/Gateway）Can receive and process the data of multiple nodes parallel, greatly expand power system capacity；
LoRa modules are up to the link budget of 157db and make its communication distance up to 15 kilometers（Relevant with environment, transmit in comparatively dense urban district
Distance is up to 2 kilometers）.Which receives electric current only 10mA, and sleep current 200nA, this delay the service life of battery significantly, typically
Think, be individually for LoRa module for power supply using common AA batteries, theory can be used more than 20 years.
Further, the combustible gas metering arrangement also includes：It is connected to pressure sensor, the TEMP of the controller
Device, shock sensor, pre-payment valve control module, human-computer interaction module and sound and light alarm module；
The pressure sensor is used for sensing gaseous-pressure information, and transmits it to controller；
The temperature sensor is used for sensing temperature information, and transmits it to controller；
The shock sensor is used for the vibration information for sensing gas meter, flow meter, and transmits it to controller；
The LORA modules are additionally operable to transmit the gaseous-pressure information, temperature information, vibration information to remote service
Device；
The pre-payment module is used for the prepayment information of receive user, and opens or closes combustion according to the prepayment information
Gas meter valve；
The sound and light alarm module is used for sending sound and light alarm information when gas meter, flow meter occurs abnormal；
The human-computer interaction module is connected with controller, for showing the usage amount of user's gas.
Further, the LoRa power modules are battery；The battery is common batteries or rechargeable battery.
In some embodiments, in the combustible gas metering arrangement, include anury charging module, which is used for carrying out for rechargeable battery
Anury charges.
Further, the LoRa modules include LoRa radio frequency chips and antenna；
The LoRa radio frequency chips are connected with the controller, for from the controller receiving data, and by the number
According to being converted into electromagnetic wave；
The antenna is connected with the LoRa radio frequency chips, for electromagnetic wave is sent to other nothings with LoRa functions
Line communication module.
Preferably, the LoRa radio frequency chips are chip SX127x.Specifically, applicant has succeeded in developing and has adopted chip
The LoRa modules of SX1278 are simultaneously internal to be named as RF1278 communication modules.
Further, the digital electronic unit is photoelectric direct-reading apparatus or pulse counting equipment.
Further, the pulse counting equipment includes,
Piezo electric module, for producing current impulse when being under pressure；
Runner, includes at least one lug boss on the circumference of the runner, the runner is vertically set on piezo electric module one
Side, when runner rotates, the lug boss is extruded with the piezo electric module, meanwhile, the portion beyond runner circumference upper projecting portion
Divide and do not contact with the piezo electric module when rotated.
Preferably, the piezo electric module is piezoelectric membrane.
In some embodiments, the lug boss on the runner circumference is one, and the lug boss accounts for the radian of runner circumference
For 15 degree～90 degree；Now, when the lug boss of runner circumference extrudes the piezo electric module, experience pressurized and persistently produce electricity
Stream pulse, but as lug boss is only one, therefore runner often rotates a circle, and the piezo electric module only produces primary current arteries and veins
Punching.
In other embodiment, the lug boss on the runner circumference is ten, and described ten lug bosses are uniform point
Cloth, and each described lug boss to account for the radian of runner circumference be more than 0 degree, less than or equal to 10 degree.Now, whenever there is lug boss
The piezo electric module is extruded, then the piezo electric module produces primary current pulse, therefore runner often rotates a circle, and the piezoelectricity can
10 subpulses are produced, thus corresponding 10 place reading.
In sum, as a result of above-mentioned technical proposal, the beneficial effects of the utility model are：
The utility model replaces traditional common WIFI module to carry out Wireless Data Transmission using LoRa modules, and traditional
WiFi technology is compared, and LoRa modules are nearly free from energy consumption, and LoRa modules just can be had standby up to 20 years using AA batteries
Time；Meanwhile, compared with WIFI transmission means, LoRa modules are mainly run in global free frequency range（I.e. unauthorized frequency range）, tool
The characteristics of having signal coverage distance bigger, based on the domestic gas metering device of LoRa modules, can achieve 5- in urban area
The transmission range of 15km, it means that only need the connection that a connecting node can achieve all terminal devices a block,
This undoubtedly greatly reduces the networking cost of gas company.
In addition, in view of current Internet of Things development trend, in gas metering field, no matter using which kind of communication mode by combustion gas
The metrical information of gauge table sends to remote service end and has significant practical applications, but regardless of being NB-lOT side wireless communications
Formula, LoRa communication modes, 4.2 communication mode of Sub 1G communication modes or bluetooth, all have its unique application advantage, in reality
In products application, adopt different communication mode gas meter, flow meter measure product can with the development of respective communication technology technology itself with
And chip product corresponding with each communication technology development (such as cost, technology maturity) and have different market prospects, because
This should not simply by NB-lOT communications, LoRa communication modes, 4.2 communication party of Sub 1G communication modes or bluetooth
Formula is upper to think that for wireless communication technology which is the direct replacement of wireless communication field customary means, and should be fully recognized that each
Wireless communication technology is planted due to difference, the feature difference of respective principle（Such as network access node quantity, energy consumption condition, transmission range, skill
Art maturity）To the gas meter income brought of tool and differ.
Meanwhile, in certain embodiments, the gauge table that the utility model is provided is using the pulsed electron meter based on piezoelectricity
Counting apparatus；By arranging piezo electric module and in runner lug boss provided circumferentially about, allowing lug boss to produce electricity with piezo electric module extruding
Stream pulse is realized counting, and is not related to any magnet in whole metering device, meanwhile, runner and piezo electric module are not required to power in itself,
The antijamming capability of device is greatly improved while energy-conservation.
Description of the drawings
Fig. 1 is a kind of combustible gas metering arrangement structured flowchart based on LoRa.
Fig. 2 is LoRa modular structures block diagram in embodiment.
Fig. 3 is the structural representation of a specific embodiment of digital electronic unit in the utility model.
Fig. 4 is the structural representation of another specific embodiment of digital electronic unit in the utility model.
Reference：1- digital electronic units, 11- runners, 111- lug bosses, 12- piezo electric modules, 2- controllers, 3- sound
Light alarm module, 4- pre-payment modules, 5-LoRa modules, 51- antennas, 52-LoRa radio frequency chips, 6- human-computer interaction modules, 7-
Temperature sensor, 8- pressure sensors, 9- shock sensors.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only in order to explaining this
Utility model, is not used to limit the utility model.
For realizing above goal of the invention, as shown in figure 1, being to realize above goal of the invention, the utility model provides a kind of base
In the combustible gas metering arrangement of LoRa, the combustible gas metering arrangement includes digital electronic unit 1, LoRa modules 5, LoRa power modules
With controller 2, the digital electronic unit 1, LORA modules 5 are connected with the controller 2 simultaneously；The digital electronic unit 1
For the continuous data of gas meter, flow meter being converted to electronic data and being transmitted to the controller 2；The LORA modules 5 are used for institute
State electronic data wirelessly to transmit to remote server；LoRa power modules are used for powering for LoRa modules 5.LoRa moulds
Block 5 is the ultra long haul low power consumption data transmission technology based on below 1GHz（Long Range, abbreviation LoRa）Chip.Which receives
Sensitivity has reached surprising -148dbm, and compared with traditional sub-GHz chips, the highest of LoRa wireless transmission methods is received
Sensitivity improving more than 20db, which ensure that network connection reliability；It is kept using linear frequency modulation spread spectrum modulation technique
As FSK（Frequency shift keying）Modulation identical low power consumption characteristic, significantly increases communication distance again, while improve network effect
Rate simultaneously eliminates interference, even if the terminal of that is, different frequency expansion sequences is sent using identical frequency will not also interfere simultaneously,
Therefore concentrator/the gateway that researches and develops on this basis（Concentrator/Gateway）Can receive parallel and process multiple sections
The data of point, greatly expand power system capacity；LoRa modules 5 are up to the link budget of 157db makes its communication distance public up to 15
In（Relevant with environment）.Which receives electric current only 10mA, and sleep current 200nA, this delay the service life of battery significantly, typically
Think, be individually for the power supply of LoRa modules 5 using common AA batteries, theory can be used more than 20 years.
The combustible gas metering arrangement also includes：It is connected to the pressure sensor 8 of the controller 2, temperature sensor 7, shake
Dynamic sensor 9, pre-payment valve control module, human-computer interaction module 6 and sound and light alarm module 3；
The pressure sensor 8 is used for sensing gaseous-pressure information, and transmits it to controller 2；
The temperature sensor 7 is used for sensing temperature information, and transmits it to controller 2；
The shock sensor 9 is used for the vibration information for sensing gas meter, flow meter, and transmits it to controller 2；
The LORA modules 5 are additionally operable to transmit the gaseous-pressure information, temperature information, vibration information to remote service
Device；
The pre-payment module 4 is used for the prepayment information of receive user, and is opened or closed according to the prepayment information
Gas meter valve；
The sound and light alarm module 3 is used for sending sound and light alarm information when gas meter, flow meter occurs abnormal；
The human-computer interaction module 6 is connected with controller 2, for showing the usage amount of user's gas.
The LoRa power modules are battery；The battery is common batteries or rechargeable battery.
In some embodiments, in the combustible gas metering arrangement, include anury charging module, which is used for carrying out for rechargeable battery
Anury charges.
As shown in Fig. 2 LoRa modules 5 include LoRa radio frequency chips 52 and antenna 51；
The LoRa radio frequency chips 52 are connected with the controller 2, for from 2 receiving data of the controller, and by institute
Data conversion is stated into electromagnetic wave；
The antenna 51 is connected with the LoRa radio frequency chips 52, and there is LoRa functions for electromagnetic wave is sent to other
Wireless communication module.
The LoRa radio frequency chips are chip SX127x.
The digital electronic unit 1 is photoelectric direct-reading apparatus or pulse counting equipment.
As shown in Figure 3, Figure 4, the pulse counting equipment includes,
Piezo electric module 12, for producing current impulse when being under pressure；
Runner 11, includes at least one lug boss 111 on the circumference of the runner 11, the runner 11 is vertically set on pressure
12 side of electric module, when runner 11 rotates, the lug boss 111 is extruded with the piezo electric module 12, meanwhile, runner 11 is justified
Part beyond all upper projecting portion 111 is not contacted with the piezo electric module 12 when rotated.In the present embodiment, the piezo electric module
12 is piezoelectric membrane.
In some embodiments, the lug boss 111 on 11 circumference of the runner is one, and the lug boss 111 accounts for runner 11
The radian of circumference is 15 degree～90 degree；Now, when the lug boss 111 of 11 circumference of runner extrudes the piezo electric module 12, impression
To pressurized and persistently produce current impulse, but as lug boss 111 is only one, therefore runner 11 often rotates a circle, described
Piezo electric module 12 only produces primary current pulse.
In other embodiment, the lug boss 111 on 11 circumference of the runner is ten, described ten lug bosses 111
For being uniformly distributed, and each described lug boss 111 to account for the radian of 11 circumference of runner be more than 0 degree, less than or equal to 10 degree.This
When, whenever there is lug boss 111 to extrude the piezo electric module 12, then the piezo electric module 12 produces primary current pulse, therefore turns
Wheel 11 often rotates a circle, and the piezoelectricity can produce 10 subpulses, thus corresponding 10 place reading.When the lug boss 111 on runner is counted
Measure for 10 when, if to account for runner circumference arc excessive for each lug boss 111, easily cause
Current impulse interfere with each other, therefore, in a preferred approach, when number of gear teeth is 10, the radian of each lug boss 111 is arranged
For less than 10 degree, to avoid the interference between adjacent projections 111.
It should be noted that although the utility model does not disclose the actual connected mode between modules, ability
Field technique personnel are seeing the function of modules realization（Such as sound and light alarm module 3, each sensor assembly）, can have multiple sides
Formula realizes modules, and combines actual adoptable device, chip model, chip type, can clearly know and realize and be each
The connection of individual module.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit the utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of combustible gas metering arrangement based on LoRa, it is characterised in that the combustible gas metering arrangement include digital electronic unit,
LoRa modules, LoRa power modules and controller, the digital electronic unit, LORA modules are connected with the controller simultaneously；
The digital electronic unit is used for the continuous data of gas meter, flow meter being converted to electronic data and being transmitted to the controller；Described
LORA modules are used for wirelessly transmitting the electronic data to remote server；LoRa power modules are used for being LoRa
Module for power supply；
The LoRa modules include LoRa radio frequency chips and antenna；
The LoRa radio frequency chips are connected with the controller, for from the controller receiving data, and the data are turned
Change electromagnetic wave into；
The antenna is connected with the LoRa radio frequency chips, for electromagnetic wave is sent to other channel radios with LoRa functions
Letter module.
2. combustible gas metering arrangement as claimed in claim 1, it is characterised in that the combustible gas metering arrangement also includes：It is connected to
The pressure sensor of the controller, temperature sensor, shock sensor, pre-payment valve control module, human-computer interaction module and sound
Light alarm module；
The pressure sensor is used for sensing gaseous-pressure information, and transmits it to controller；
The temperature sensor is used for sensing temperature information, and transmits it to controller；
The shock sensor is used for the vibration information for sensing gas meter, flow meter, and transmits it to controller；
The LORA modules are additionally operable to transmit the gaseous-pressure information, temperature information, vibration information to remote server；
The pre-payment module is used for the prepayment information of receive user, and opens or closes gas meter, flow meter according to the prepayment information
Valve；
The sound and light alarm module is used for sending sound and light alarm information when gas meter, flow meter occurs abnormal；
The human-computer interaction module is connected with controller, for showing the usage amount of user's gas.
3. combustible gas metering arrangement as claimed in claim 1, it is characterised in that the LoRa power modules are battery；The electricity
Pond is common batteries or rechargeable battery.
4. combustible gas metering arrangement as claimed in claim 3, it is characterised in that charge comprising anury in the combustible gas metering arrangement
Module, its are used for carrying out anury charging for rechargeable battery.
5. combustible gas metering arrangement as claimed in claim 1, it is characterised in that the LoRa radio frequency chips are chip SX127x.
6. combustible gas metering arrangement as claimed in claim 1, it is characterised in that the digital electronic unit is photoelectric direct-reading apparatus
Or pulse counting equipment.
7. combustible gas metering arrangement as claimed in claim 6, it is characterised in that the pulse counting equipment includes,
Piezo electric module, for producing current impulse when being under pressure；
Runner, includes at least one lug boss on the circumference of the runner, the runner is vertically set on piezo electric module side, turns
During wheel rotation, the lug boss is extruded with the piezo electric module, meanwhile, the part beyond runner circumference upper projecting portion is in rotation
Do not contact with the piezo electric module when turning.
8. combustible gas metering arrangement according to claim 7, it is characterised in that the piezo electric module is piezoelectric membrane.
9. combustible gas metering arrangement according to claim 7, it is characterised in that the lug boss on the runner circumference is
Individual, it is 15 degree～90 degree that the lug boss accounts for the radian of runner circumference；Or,
Lug boss on the runner circumference is ten, and described ten lug bosses are for being uniformly distributed, and each described lug boss is accounted for
The radian of runner circumference is more than 0 degree, less than or equal to 10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043543.2U CN206019758U (en) | 2016-09-08 | 2016-09-08 | A kind of combustible gas metering arrangement based on LoRa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043543.2U CN206019758U (en) | 2016-09-08 | 2016-09-08 | A kind of combustible gas metering arrangement based on LoRa |
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| CN206019758U true CN206019758U (en) | 2017-03-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029058A1 (en) * | 2017-08-05 | 2019-02-14 | Central Merchandising Asian Limited | Wi-fi-based remote control apparatus for device |
| CN109752060A (en) * | 2017-11-02 | 2019-05-14 | 辽宁思凯科技股份有限公司 | A kind of intelligent gas meter based on embedded intelligent gas table function narrowband NB-IOT communication module group |
| CN111324072A (en) * | 2020-03-05 | 2020-06-23 | 烨辉（中国）科技材料有限公司 | Energy consumption monitoring system of steel strip production line |
-
2016
- 2016-09-08 CN CN201621043543.2U patent/CN206019758U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029058A1 (en) * | 2017-08-05 | 2019-02-14 | Central Merchandising Asian Limited | Wi-fi-based remote control apparatus for device |
| CN109752060A (en) * | 2017-11-02 | 2019-05-14 | 辽宁思凯科技股份有限公司 | A kind of intelligent gas meter based on embedded intelligent gas table function narrowband NB-IOT communication module group |
| CN111324072A (en) * | 2020-03-05 | 2020-06-23 | 烨辉（中国）科技材料有限公司 | Energy consumption monitoring system of steel strip production line |
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Address after: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee after: Chengdu Qianjia Technology Co.,Ltd. Address before: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee before: Chengdu Qianjia Technology Co.,Ltd. |