CN113611097A - Wireless acquisition method and device based on LoRa and NB-Iot - Google Patents
Wireless acquisition method and device based on LoRa and NB-Iot Download PDFInfo
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- CN113611097A CN113611097A CN202110463823.8A CN202110463823A CN113611097A CN 113611097 A CN113611097 A CN 113611097A CN 202110463823 A CN202110463823 A CN 202110463823A CN 113611097 A CN113611097 A CN 113611097A
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a wireless acquisition method based on LoRa and NB-Iot, which is applied to a low-power consumption wireless acquisition device based on LoRa and NB-Iot and comprises the following steps: judging whether the LoRa signal intensity is stronger than the NB-Iot signal intensity, and selecting a communication module with stronger signal intensity to connect with the sensor; and judging whether the acquired data is higher than a threshold value, uploading the acquired data to a server through the NB-Iot communication module if the acquired data is higher than the threshold value, and closing the existing communication module to perform a sleep mode if the acquired data is lower than the threshold value. According to the invention, wireless acquisition communication is carried out by adopting LoRa and NB-Iot fusion, so that the problems of limited communication distance and high operation cost are solved.
Description
Technical Field
The invention relates to the technical field of automatic acquisition, in particular to a wireless acquisition method and device based on LoRa and NB-Iot.
Background
The LoRa technology is a wireless communication technology based on a spread spectrum modulation technology, has the characteristics of long transmission distance, low transmission power consumption, strong anti-interference performance and the like, and is gradually popularized and applied in the fields of environmental monitoring, industrial control and the like. The NB-Iot is a new radio access technology, and aims to achieve excellent performance through conventional devices and technologies, and has the characteristics of strong link, high coverage, low power consumption, and low cost. At present, the existing low-power wireless collector still has the following defects: (1) the problem of limited communication distance exists in the communication of the LORA local area network; (2)2G, 3G and 4G wide area network communication has the problem of high operation cost; (3) the service time of the battery is short; (4) the application environment is limited and depends on the network coverage of local operators; moreover, due to the variability of installation environment and uncertainty of user requirements, even network coverage and traffic support of operators, it is difficult to realize reliable and stable data transmission to a specific server using a certain network standard. In the prior art, LoRa and NB-Iot fusion is not considered for wireless networking and wireless acquisition communication.
Disclosure of Invention
Technical problem to be solved
Based on the problems, the invention provides a wireless acquisition method and device based on LoRa and NB-Iot, and solves the problems of limited communication distance, high operation cost and the like.
(II) technical scheme
Based on the technical problem, the invention provides a wireless acquisition method based on LoRa and NB-Iot, which comprises the following steps:
s1, judging whether the intensity of the LoRa signal is stronger than that of the NB-Iot signal, if so, starting the LoRa communication module, connecting the sensor module, acquiring data by the sensor module, uploading the acquired data to the data processing module, and entering the step S2; if not, the NB-Iot communication module is started, the sensor module is connected, the sensor collects data, the once collected data is uploaded to the data processing module, and the step S3 is executed;
s2, the data processing module judges whether the once collected data is higher than a threshold value, if not, the LoRa communication module is closed, and the LoRa communication module enters a dormant state; if yes, starting an NB-Iot communication module to upload primary acquired data to a server, improving acquisition frequency, uploading secondary acquired data to a data processing module through an LoRa communication module, judging whether the secondary acquired data is higher than a threshold value, if yes, uploading the secondary acquired data and early warning notification to the server through the NB-Iot communication module, and if not, uploading the secondary acquired data and false warning notification to the server through the NB-Iot communication module;
s3, the data processing module judges whether the once collected data is higher than a threshold value, if not, the data is saved, the NB-Iot communication module is closed, and the NB-Iot communication module enters a dormant state; and if the secondary acquisition data and the early warning notice are uploaded to the server through the NB-Iot communication module, if not, the secondary acquisition data and the false report notice are uploaded to the server through the NB-Iot communication module.
Further, in steps S2 and S3, before uploading to the server through the NB-Iot communication module, the NB-Iot signal strength should be determined, if the NB-Iot signal strength is strong, the NB-Iot signal strength is uploaded to the server, otherwise, the NB-Iot signal strength is stored, and when the NB-Iot signal strength is detected to be strong, the NB-Iot signal strength is uploaded to the server.
Further, the acquisition frequency before the increase is 20 min/time, and the acquisition frequency after the increase is 5 min/time.
The invention also discloses a wireless acquisition device based on the LoRa and the NB-Iot, which is applied to the wireless acquisition method based on the LoRa and the NB-Iot, and the wireless acquisition device comprises a microcontroller, and a data processing module, a LoRa communication module, an NB-Iot communication module, a storage module and a power supply module which are respectively connected with the microcontroller, wherein the data processing module is connected with the storage module and the power supply module, the LoRa communication module is used for connecting with a sensor module, and the NB-Iot communication module is used for connecting with the sensor module or a server.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
(1) the invention adopts the fusion of LoRa and NB-Iot to carry out wireless networking and wireless acquisition communication, so that the communication intensity is ensured, the communication distance is long, the overall power consumption is low, the cost is low, the application environment adaptability is strong, and the reliability and the stability of the acquired data are ensured;
(2) when the acquired data is higher than the threshold value, early warning is carried out when the acquired data is still higher than the threshold value after the acquisition frequency is improved, the possibility of false alarm is reduced, and the accuracy of data acquisition is improved;
(3) after the data are collected, the data can be stored for later comparative analysis, and data mutation caused by interference of other external factors can be effectively avoided, so that the data analysis is more accurate.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 shows a wireless acquisition device based on LoRa and NB-Iot according to an embodiment of the present invention;
fig. 2 shows a wireless acquisition method based on LoRa and NB-Iot in accordance with an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention relates to a wireless acquisition device based on LoRa and NB-Iot, as shown in figure 1, the device comprises a microcontroller, a data processing module, a LoRa communication module, an NB-Iot communication module, a storage module and a power module, wherein the data processing module, the LoRa communication module, the NB-Iot communication module, the storage module and the power module are respectively connected with the microcontroller;
as shown in fig. 2, the wireless acquisition method based on LoRa and NB-Iot includes the following steps:
s1, judging whether the intensity of the LoRa signal is stronger than that of the NB-Iot signal, if so, starting the LoRa communication module, connecting the sensor module, acquiring data by the sensor module, uploading the acquired data to the data processing module, and entering the step S2; if not, the NB-Iot communication module is started, the sensor module is connected, the sensor collects data, the once collected data is uploaded to the data processing module, and the step S3 is executed;
s2, the data processing module judges whether the once collected data is higher than a threshold value, if not, the LoRa communication module is closed, and the LoRa communication module enters a dormant state; if yes, starting an NB-Iot communication module to upload primary acquired data to a server, improving acquisition frequency, uploading secondary acquired data to a data processing module through an LoRa communication module, judging whether the secondary acquired data is higher than a threshold value, if yes, uploading the secondary acquired data and early warning notification to the server through the NB-Iot communication module, and if not, uploading the secondary acquired data and false warning notification to the server through the NB-Iot communication module;
s3, the data processing module judges whether the once collected data is higher than a threshold value, if not, the data is saved, the NB-Iot communication module is closed, and the NB-Iot communication module enters a dormant state; and if the secondary acquisition data and the early warning notice are uploaded to the server through the NB-Iot communication module, if not, the secondary acquisition data and the false report notice are uploaded to the server through the NB-Iot communication module.
The data is stored for being compared and analyzed with the data collected next time, so that the data is more accurate, and the phenomenon that the data is suddenly changed to cause an error triggering mechanism due to interference of other external factors is avoided.
Before uploading to a server through the NB-Iot communication module, the NB-Iot signal strength is judged, if the NB-Iot signal strength is strong, the NB-Iot signal strength is uploaded to the server, otherwise, data is stored, and the NB-Iot signal strength is uploaded to the server when the NB-Iot signal strength is detected to be strong.
In this embodiment, when the acquired data is higher than the threshold value, the acquisition frequency is increased, the originally set acquisition frequency is 20 min/time, when the acquired data is higher than the threshold value, the acquisition frequency is automatically adjusted to 5 min/time, and NB-IOT communication is automatically started to transmit the data to the server for early warning analysis.
In summary, the wireless acquisition method and device based on LoRa and NB-Iot have the following advantages:
(1) the invention adopts the fusion of LoRa and NB-Iot to carry out wireless networking and wireless acquisition communication, so that the communication intensity is ensured, the communication distance is long, the overall power consumption is low, the cost is low, the application environment adaptability is strong, and the reliability and the stability of the acquired data are ensured;
(2) when the acquired data is higher than the threshold value, early warning is carried out when the acquired data is still higher than the threshold value after the acquisition frequency is improved, the possibility of false alarm is reduced, and the accuracy of data acquisition is improved;
(3) after the data are collected, the data can be stored for later comparative analysis, and data mutation caused by interference of other external factors can be effectively avoided, so that the data analysis is more accurate.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (4)
1. A wireless acquisition method based on LoRa and NB-Iot is characterized by comprising the following steps:
s1, judging whether the intensity of the LoRa signal is stronger than that of the NB-Iot signal, if so, starting the LoRa communication module, connecting the sensor module, acquiring data by the sensor module, uploading the acquired data to the data processing module, and entering the step S2; if not, the NB-Iot communication module is started, the sensor module is connected, the sensor collects data, the once collected data is uploaded to the data processing module, and the step S3 is executed;
s2, the data processing module judges whether the once collected data is higher than a threshold value, if not, the LoRa communication module is closed, and the LoRa communication module enters a dormant state; if yes, starting an NB-Iot communication module to upload primary acquired data to a server, improving acquisition frequency, uploading secondary acquired data to a data processing module through an LoRa communication module, judging whether the secondary acquired data is higher than a threshold value, if yes, uploading the secondary acquired data and early warning notification to the server through the NB-Iot communication module, and if not, uploading the secondary acquired data and false warning notification to the server through the NB-Iot communication module;
s3, the data processing module judges whether the once collected data is higher than a threshold value, if not, the data is saved, the NB-Iot communication module is closed, and the NB-Iot communication module enters a dormant state; and if the secondary acquisition data and the early warning notice are uploaded to the server through the NB-Iot communication module, if not, the secondary acquisition data and the false report notice are uploaded to the server through the NB-Iot communication module.
2. The wireless acquisition method based on the LoRa and the NB-Iot as claimed in claim 1, wherein in steps S2 and S3, before uploading to the server through the NB-Iot communication module, the NB-Iot signal strength is judged, if the NB-Iot signal strength is strong, the NB-Iot signal strength is uploaded to the server, otherwise, the NB-Iot signal strength is stored, and when the NB-Iot signal strength is detected, the NB-Iot signal strength is uploaded to the server.
3. The wireless acquisition method based on LoRa and NB-Iot according to claim 1, wherein the acquisition frequency before boosting is 20 min/time and the acquisition frequency after boosting is 5 min/time.
4. A wireless acquisition device based on LoRa and NB-Iot, which is characterized in that the wireless acquisition device based on LoRa and NB-Iot is applied to any one of claims 1-3, the device comprises a microcontroller, and a data processing module, a LoRa communication module, an NB-Iot communication module, a storage module and a power supply module which are respectively connected with the microcontroller, wherein the data processing module is connected with the storage module and the power supply module, the LoRa communication module is used for connecting with a sensor module, and the NB-Iot communication module is used for connecting with the sensor module or a server.
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