CN207166796U - A kind of bus duct temperature acquisition gateway based on NB IoT and LoRa - Google Patents
A kind of bus duct temperature acquisition gateway based on NB IoT and LoRa Download PDFInfo
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- CN207166796U CN207166796U CN201721066103.3U CN201721066103U CN207166796U CN 207166796 U CN207166796 U CN 207166796U CN 201721066103 U CN201721066103 U CN 201721066103U CN 207166796 U CN207166796 U CN 207166796U
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Abstract
The utility model discloses a kind of bus duct temperature acquisition gateway based on NB IoT and LoRa that can realize wireless self-networking.It includes LoRa dual-mode antennas, LoRa radio-frequency modules, master controller, NB IoT radio-frequency modules, NB IoT dual-mode antennas, Contiki systems, debugging interface, memory, indicator lamp, power module.Because LoRa has merged digital spread spectrum, Digital Signal Processing and forward error correction coding technology, antijamming capability greatly strengthens, even if electromagnetic noise is very big, also can tackle calmly, MANET is realized using Contiki systems, the scope of signal transmission is extended, this reliability to Temperature sampler data transfer serves the effect of key, it is ensured that does not lose data.
Description
Technical field
The utility model is related to a kind of radio communications gateway, be especially that by wireless self-networking, based on NB-IoT and
LoRa bus duct temperature acquisition gateway.
Background technology
Bus duct, it is a kind of metal device for the closing being made up of copper, aluminium busbar post, for for each element of decentralized system
Distribute relatively high power.Indoors electric wire is instead of more and more in the power Transmission trunk project project of low pressure.
With China's rapid development of economy, the power consumption of all trades and professions is growing day by day, easily the electric current tradition of upper kilo-ampere
Cable seems unable to do what one wishes, and it is also the thing that when the water comes, a channel is formed that now bus duct, which climbs up the arena of history,.
Because the current capacity of bus duct is strong, in the big occasion of some bearing powers, thousands of A electric current be it is very common,
Because bus duct is rigid structure, it is impossible to packed and transported is rolled as common cable, for convenience of transporting, bus duct is usually
Dispatched from the factory with 3m or so length, need this section bus duct being stitched together when construction, and due to its current-carrying
It is bigger, if when splicing, loose contact, conductor joint heating is will result in, can cause the considerable safeties such as fire if serious
Accident, then, particularly important is just seemed to the temperature detection of bus duct joint.The detection means of main flow has at present：
1. by holding thermal infrared imager, timing manual inspection.This is the traditional method of comparison, and this method is time-consuming to take
Power, the cycle of general inspection is also long, it is difficult to which the very first time pinpoints the problems, and hand-held thermal infrared imager is typically also relatively more high
It is expensive；
2. being connected to Surveillance center in the position mounting temperature sensor of bus duct joint, and by buses such as RS485, lead to
Special equipment is crossed to be tested and analyzed, if there is excess temperature situation, energy and alarm.Collection of the kind method to temperature can reach
Detection in real time, but because it is connected to computer room, computer room needs Attended mode, could carry out timely processing to the failure of burst,
And in terms of construction, due to needing to lay the bus transfer temperature sensor datas such as RS485, asked so difficult wiring etc. be present
Topic.
3. installation is filled by the temperature detection of the composition such as temperature sensor, ZigBee communication module in the position of bus duct joint
Put, by ZigBee-network agreement, be wirelessly sent to neighbouring gateway, then by ZigBee gateways by GPRS or
The temperature data collected is sent to Cloud Server by netting twine.Although this mode avoids the wiring problem of construction, but by
It is operated in ZigBee on 2.4G common signal channel, substantial amounts of bluetooth is present, WiFi equipment, electromagnetic interference is extremely serious, easily
Cause loss of data；Further, since the front-to-back ratio of 2.4G frequency range electromagnetic waves is preferable, diffracting power is very weak, in electric well and compares
Inside the passage of bending, communication distance is very limited, and the number of nodes for causing to link below each gateway is than relatively limited, so
Making use of momentum necessarily increases the quantity of gateway arrangement, thus needs to configure more Sim cards flow package expenses, is unfavorable for the later stage
The reduction of maintenance cost.It is additionally, since communication distance to be limited, the regioselectivity of gateway arrangement is also limited, in electric well or underground
The places such as room, inevitably it is also required to arrange gateway, but the situation of no GPRS signals often occurs in these places, causes
Although temperature data has been sent to gateway, gateway can not be sent to server, cause loss of data.
4. gateway with the mode of server connection netting twine, although this mode avoids the electromagnetic interference in space, transmission
It is more stable, but the distance of network cable transmission is limited, and independent wiring is needed, construction is cumbersome.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of bus bath temperature based on NB-IoT and LoRa
Spend acquisition gateway.It includes LoRa dual-mode antennas, LoRa radio-frequency modules, master controller, NB-IoT radio-frequency modules, NB-IoT transmitting-receivings
Antenna, Contiki systems, debugging interface, memory, indicator lamp, power module.
Further, LoRa dual-mode antennas：The transmitting-receiving of site of deployment 433MHz frequency band signals is realized, is used for and temperature acquisition
Node communicates；LoRa radio-frequency modules：Achieve a butt joint the demodulation collected mail number, and the modulation to transmission signal；Master controller：It is
The hardware platform of Contiki system operations, realize and the overall situation of gateway is controlled, including the packing to transceiving data, unpack, turn
Hair, storage and the judgement to running status simultaneously control indicator lamp to indicate corresponding state；NB-IoT radio-frequency modules：Realize telecommunication
Function, the signal modulation that gateway obtains is launched into NB-IoT protocol formats, and by NB-IoT dual-mode antennas, passes to cloud
Server；NB-IoT dual-mode antennas：The transmitting-receiving of NB-IoT signals is realized, for being communicated with remote cloud server；Contiki systems
System：The system realizes MANET agreement, and other procotols；Debugging interface：Including UART, SWD etc., for being carried out to gateway
Debugging or secondary development are used；Memory：For storing caused data and online upgrading in gateway running；Indicator lamp：With
Accessed in the state of instruction gateway operation, such as node, data transmit-receive, the state such as alarm；Power module：For giving LoRa radio frequency moulds
Block, master controller, NB-IoT radio-frequency modules, the module for power supply such as memory, indicator lamp.
Further, a kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa, it can pass through in the application
LoRa wireless technologys are communicated with the temperature acquisition node being distributed on bus duct by way of MANET, can also be passed through
NB-IoT wireless technologys, communicated with Cloud Server.
Further, LoRa dual-mode antennas：Spring antenna or whip antenna can be selected, should to receive using the antenna
The signal of the 433MHz frequency ranges sent with scene by temperature acquisition node or the instruction for receiving gateway are sent to temperature acquisition
Node；
Further, LoRa radio-frequency modules：On the one hand the signal that LoRa dual-mode antennas receive is demodulated, and will solution
The information recalled gives master controller by SPI interface；On the other hand, letter master controller brought by SPI interface
Breath is modulated according to LoRa agreement, and is sent by LoRa dual-mode antennas；
Further, master controller：Master controller is provided with Contiki systems, realizes following functions：To LoRa radio-frequency modules
The information sended over is parsed, and according to the rule of setting, NB- is sent to by UART interface after data are packed
IoT radio-frequency modules；The information sended over to NB-IoT radio-frequency modules is parsed, and according to the rule of setting, data are beaten
LoRa radio-frequency modules are sent to by SPI interface after bag；The MANET agreement with beneath temperature acquisition node is realized, controls net
The establishment and maintenance of network；Realize the online upgrading function of gateway firmware；Realize and the temperature information collected is judged, control
Indicator lamp, indicate the running status of gateway, including data transmit-receive, network state, warning information；Realize in gateway running,
The storage of significant data, such as running log.
Further, NB-IoT radio-frequency modules：Telecommunications functions are realized, master controller is on the one hand passed through into UART interface
The data sent are modulated into NB-IoT protocol formats, and are launched by NB-IoT dual-mode antennas, pass to Cloud Server；
On the other hand, information Cloud Server sent is demodulated, and sends master controller to by UART interface.
Thus, the application possesses advantages below and beneficial effect：
1. communicated using LoRa wireless technologys with temperature acquisition node；Construction complexity is reduced, saves construction cost；Solve
Traditional wireless communication mode reduces the arrangement of gateway apart from limitation problem, can because gateway is much higher typically than node cost
Greatly to reduce construction cost.
2. being communicated using NB-IoT wireless technologys with Cloud Server, the communication distance of wireless network, NB- are improved
IoT coverings are wide, it will thus provide improved in-door covering, under same frequency range, NB-IoT is than existing network gain 20dB, quite
In the ability for improving 100 times of overlay areas；NB-IoT network connection quality is high, effectively improve data transfer reliability and
Stability；The position of gateway installation is more random, it is easier to finds the good position of mobile communication signal, it is difficult to reduce project installation
Degree.
3. because LoRa has merged digital spread spectrum, Digital Signal Processing and forward error correction coding technology, antijamming capability pole
Big enhancing, even if electromagnetic noise is very big, can also be tackled calmly, and MANET is realized using Contiki systems, extension signal transmission
Scope, this reliability to Temperature sampler data transfer serve the effect of key, it is ensured that do not lose data.
Brief description of the drawings
Bus duct temperature acquisition gateway theory diagrams of the Fig. 1 based on NB-IoT and LoRa
Bus duct temperature acquisition gateway network topological diagrams in the application of the Fig. 2 based on NB-IoT and LoRa
Numbering 101-LoRa dual-mode antennas, 102-LoRa radio-frequency modules, 103- master controllers, 104-NB-IoT radio frequencies in figure
Module, 105-NB-IoT dual-mode antennas, 106-Contiki systems, 107- debugging interfaces, 108- memories, 109- indicator lamps,
110- power modules.
Embodiment
As shown in figure 1, it is a kind of based on NB-IoT and LoRa bus duct temperature acquisition gateway by LoRa dual-mode antennas 101,
LoRa radio-frequency modules 102, master controller 103, NB-IoT radio-frequency modules 104, NB-IoT dual-mode antennas 105, Contiki systems
106th, debugging interface 107, memory 108, indicator lamp 109, power module 110 form.Wherein master controller 103 respectively with LoRa
Radio-frequency module 102, NB-IoT radio-frequency modules 104, Contiki systems 106, debugging interface 107, the two-way communication of memory 108 connect
Connect.
The bus duct temperature acquisition gateway is used for the temperature signal for transmitting the detection of bus duct temperature sensor, and is occurring
User or manager are reminded during overtemperature state.
Further, LoRa dual-mode antennas：The transmitting-receiving of site of deployment 433MHz frequency band signals is realized, is used for and temperature acquisition
Node communicates；LoRa radio-frequency modules：Achieve a butt joint the demodulation collected mail number, and the modulation to transmission signal；Master controller：It is
The hardware platform of Contiki system operations, realize and the overall situation of gateway is controlled, including the packing to transceiving data, unpack, turn
Hair, storage and the judgement to running status simultaneously control indicator lamp to indicate corresponding state；NB-IoT radio-frequency modules：Realize telecommunication
Function, the signal modulation that gateway obtains is launched into NB-IoT protocol formats, and by NB-IoT dual-mode antennas, passes to cloud
Server；NB-IoT dual-mode antennas：The transmitting-receiving of NB-IoT signals is realized, for being communicated with remote cloud server；Contiki systems
System：The system realizes MANET agreement, and other procotols；Debugging interface：Including UART, SWD etc., for being carried out to gateway
Debugging or secondary development are used；Memory：For storing caused data and online upgrading in gateway running；Indicator lamp：With
Accessed in the state of instruction gateway operation, such as node, data transmit-receive, the state such as alarm；Power module：For giving LoRa radio frequency moulds
Block, master controller, NB-IoT radio-frequency modules, the module for power supply such as memory, indicator lamp.
Further, a kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa, it can pass through in the application
LoRa wireless technologys are communicated with the temperature acquisition node being distributed on bus duct by way of MANET, can also be passed through
NB-IoT wireless technologys, communicated with Cloud Server.
Further, LoRa dual-mode antennas：Spring antenna or whip antenna can be selected, should to receive using the antenna
The signal of the 433MHz frequency ranges sent with scene by temperature acquisition node or the instruction for receiving gateway are sent to temperature acquisition
Node；
Further, LoRa radio-frequency modules：On the one hand the signal that LoRa dual-mode antennas receive is demodulated, and will solution
The information recalled gives master controller by SPI interface；On the other hand, letter master controller brought by SPI interface
Breath is modulated according to LoRa agreement, and is sent by LoRa dual-mode antennas；
Further, master controller：Master controller is provided with Contiki systems, realizes following functions：To LoRa radio-frequency modules
The information sended over is parsed, and according to the rule of setting, NB- is sent to by UART interface after data are packed
IOT radio-frequency modules；The information sended over to NB-IoT radio-frequency modules is parsed, and according to the rule of setting, data are beaten
LoRa radio-frequency modules are sent to by SPI interface after bag；The MANET agreement with beneath temperature acquisition node is realized, controls net
The establishment and maintenance of network；Realize the online upgrading function of gateway firmware；Realize and the temperature information collected is judged, control
Indicator lamp, indicate the running status of gateway, including data transmit-receive, network state, warning information；Realize in gateway running,
The storage of significant data, such as running log.
Further, NB-IoT radio-frequency modules：Telecommunications functions are realized, master controller is on the one hand passed through into UART interface
The data sent are modulated into NB-IoT protocol formats, and are launched by NB-IoT dual-mode antennas, pass to Cloud Server；
On the other hand, information Cloud Server sent is demodulated, and sends master controller to by UART interface.
Due to LoRa, to have merged digital spread spectrum, Digital Signal Processing and forward error correction coding technology, antijamming capability very big
Enhancing, even if electromagnetic noise is very big, can also be tackled calmly, and MANET is realized using Contiki systems, extension signal transmission
Scope, this reliability to Temperature sampler data transfer serve the effect of key, it is ensured that do not lose data.
Above example is only unrestricted to illustrate the utility model, although being carried out with reference to embodiment to the utility model
Describe in detail, it will be understood by those within the art that, the utility model can be modified this or replace on an equal basis
Change, without departing from spirit and scope of the present utility model, it all should cover among right of the present utility model.
Claims (7)
- A kind of 1. bus duct temperature acquisition gateway based on NB-IoT and LoRa, it is characterised in that：Including LoRa dual-mode antennas, LoRa radio-frequency modules, master controller, NB-IoT radio-frequency modules, NB-IoT dual-mode antennas, Contiki systems, debugging interface, storage Device, indicator lamp, power module.
- 2. bus duct temperature acquisition gateway as claimed in claim 1, it is characterised in that the LoRa dual-mode antennas matching The transmitting-receiving of 433MHz frequency band signals, Contiki systems are set in the master controller, the packing to transceiving data, unpack, forwarding, Storage and the judgement to running status simultaneously control indicator lamp to indicate corresponding state；What the NB-IoT radio-frequency modules obtained gateway Signal modulation is into NB-IoT protocol formats；And launched by NB-IoT dual-mode antennas, pass to Cloud Server；The indicator lamp For indicating the state of gateway operation；The power module is the LoRa radio-frequency modules, the master controller, the NB-IoT Radio-frequency module, the memory, the indicating lamp module power supply.
- 3. bus duct temperature acquisition gateway as claimed in claim 1, it is characterised in that more also including multiple temperature detection nodes Individual temperature detection node is directly or indirectly connected to gateway.
- 4. bus duct temperature acquisition gateway as claimed in claim 3, it is characterised in that：Each node connects multiple simultaneously Other nodes carry out signal transmission.
- 5. bus duct temperature acquisition gateway as claimed in claim 1, it is characterised in that：Master controller is penetrated with the LoRa respectively Frequency module, the Contiki systems, the debugging interface, the NB-IoT radio-frequency modules, the memory two-way communication connect Connect.
- 6. bus duct temperature acquisition gateway as claimed in claim 1, it is characterised in that：The indicator lamp is made up of LED, and Setting signal display chip.
- 7. bus duct temperature acquisition gateway as claimed in claim 5, it is characterised in that：The NB-IoT radio-frequency modules are on the one hand The data that master controller is sent by UART interface are modulated into NB-IoT protocol formats, and pass through NB-IoT dual-mode antennas Launch, pass to Cloud Server；On the other hand, information Cloud Server sent is demodulated, and is connect by UART Master controller is given in oral instructions.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156672A (en) * | 2017-08-25 | 2018-06-12 | 广州莲雾科技有限公司 | A kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa |
| CN108769914A (en) * | 2018-06-29 | 2018-11-06 | 广州市浩洋电子股份有限公司 | A kind of lamps and lanterns localization method based on city illumination intelligent management system |
| CN108834279A (en) * | 2018-06-29 | 2018-11-16 | 广州市浩洋电子股份有限公司 | City illumination intelligent management system and localization method based on multi-internet integration |
| CN110164115A (en) * | 2019-06-05 | 2019-08-23 | 河南卓正电子科技有限公司 | A kind of multi-mode Internet of Things wisdom energy source data acquisition terminal |
| CN111935278A (en) * | 2020-08-07 | 2020-11-13 | 深圳市地质局 | Data acquisition system and method based on LoRa dual-band gateway and nodes |
-
2017
- 2017-08-25 CN CN201721066103.3U patent/CN207166796U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156672A (en) * | 2017-08-25 | 2018-06-12 | 广州莲雾科技有限公司 | A kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa |
| CN108769914A (en) * | 2018-06-29 | 2018-11-06 | 广州市浩洋电子股份有限公司 | A kind of lamps and lanterns localization method based on city illumination intelligent management system |
| CN108834279A (en) * | 2018-06-29 | 2018-11-16 | 广州市浩洋电子股份有限公司 | City illumination intelligent management system and localization method based on multi-internet integration |
| CN110164115A (en) * | 2019-06-05 | 2019-08-23 | 河南卓正电子科技有限公司 | A kind of multi-mode Internet of Things wisdom energy source data acquisition terminal |
| CN111935278A (en) * | 2020-08-07 | 2020-11-13 | 深圳市地质局 | Data acquisition system and method based on LoRa dual-band gateway and nodes |
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