CN108112062A - The Low-power-consumptiocontrol control method that LoRaWAN adaptive powers and rate combine - Google Patents
The Low-power-consumptiocontrol control method that LoRaWAN adaptive powers and rate combine Download PDFInfo
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- CN108112062A CN108112062A CN201711377021.5A CN201711377021A CN108112062A CN 108112062 A CN108112062 A CN 108112062A CN 201711377021 A CN201711377021 A CN 201711377021A CN 108112062 A CN108112062 A CN 108112062A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000005265 energy consumption Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
-
- 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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The Low-power-consumptiocontrol control method that the present invention provides a kind of LoRaWAN adaptive powers and rate combines, one-to-many communication system of this method based on LoRaWAN agreements play an important role of that adaptively adjusting node-node transmission rate and power realizes low-power consumption.The RSSI averages that data are uploaded according to nearest n times adjust transmission rate and transimission power, embody the variation of system environments, can adaptive different system environments, the method that is more suitable for adaptive low-power consumption.
Description
Technical field
The present invention relates to fields of communication technology, are combined more particularly, to a kind of LoRaWAN adaptive powers and rate
Low-power-consumptiocontrol control method.
Background technology
The development and application of Radio Transmission Technology bring great practicability to corporate operation and people’s lives,
It is widely used, the energy consumption how research reduces wireless communication devices has far-reaching significance.Based on LoRaWAN
The wireless telecom equipment low power dissipation design of agreement is mainly reflected in the control of transmit power, the control of transmission rate and control mould
Block dormancy time.Power Control is mainly that the RSSI value of frame information is confirmed by receiving gateway, and transmit power is adjusted,
Message is sent with smaller power as far as possible in the case where guaranteeing normal communication, to achieve the purpose that reduce power consumption.Speed control
Mainly by setting different transmission rate (Data Rate abbreviation DR), DR has 0-5 totally 6 ranks, and DR is bigger, transmission spirit
Sensitivity is lower.Conversely, DR is smaller, transmission sensitivity is higher.
The node of wireless transmitting system mainly by radio-frequency module and data acquisition and control module, is realized by radio-frequency module
Communication between node and node or node and gateway.In one-to-many communication system, energy expenditure mainly by radio-frequency module and
Data control block two parts are formed, and the energy consumption of radio-frequency module mainly determines by antenna transmit power, with node and node or
The distance between gateway, the rate of transmission are related.After selected antenna, the maximum transmit power that radio-frequency module needs is under determining
Come, so by the difference of distance between node, different transmit powers is set, can reach radio-frequency module reduces node energy consumption
Purpose.Due to the difference of transmission range between system node and node, transmission rate is also different.Distance is near, transmission rate
Soon, power is high.Distance is remote, and transmission rate is slow, low in energy consumption.The energy consumption of data control block is mainly by MCU run times and operation
State determines, it is necessary to which data acquisition or during by radio-frequency module transceiving data, control module enters corresponding operation immediately
State, pending data transmitting-receiving or acquisition, which finish, immediately enters the operating status of dormancy to achieve the purpose that reduce energy consumption.
A pair of of multipoint communication system is communication system mode relatively common in wireless transmission communication system, refers to a section
Point sends different message to multiple nodes or sends identical message simultaneously respectively, realizes one-to-many communication.The present invention
The characteristics of control method of low-power consumption is improved based on existing wireless communication technique, combines one-to-many communication system, design
A kind of Low-power-consumptiocontrol control method suitable for one-to-many communication system, to reduce the power consumption of whole system, makes equipment life more
It is long.
The content of the invention
The low work(that the present invention provides a kind of LoRaWAN adaptive powers of power consumption for reducing whole system and rate combines
Consume control method.
In order to reach above-mentioned technique effect, technical scheme is as follows：
The Low-power-consumptiocontrol control method that a kind of LoRaWAN adaptive powers and rate combine, comprises the following steps：
S1：After the power is turned on, transmission rate is set to DR0 states to node, and transmit power is set to minimum value Pmin, uploads number for the first time
According to rear, gateway is waited to reply and confirms instruction, RSSI value, the transmission rate information of this transmission are contained in instruction, if not receiving
Confirmation to gateway instructs, then increases transmit power, until the confirmation for receiving gateway instructs；
S2：Node_RSSI is counted as according to the RSSI value that last time data are successfully transmitted, if upper limit value Node_RSSI_high>
Node_RSSI>Lower limiting value Node_RSSI_low illustrates that transmit power is moderate, and the transmission work(of data is uploaded as lower minor node
Rate；If Node_RSSI>Upper limit value Node_RSSI_high illustrates that this transmit power is too big, and energy consumption is too high, this is sent
Power reduces the transmit power that data are uploaded as lower minor node；If Node_RSSI<Lower limit Node_RSSI_low, illustrates this
Transmit power is too small, although energy success communication, dangerous there are potential packet loss, need to increase transmit power, amended hair
Power is sent then to upload the transmit power of data as lower minor node；
S3：After node is contacted with gateway foundation, second of upload data, this transmit power is the work(being successfully transmitted last time
Rate, and repeat step S2 and judge whether next transmit power will modify, calculate RSSI averages and determine to pass according to the average
Defeated rate if transmission rate and last definite transmission rate are inconsistent, reduces the times N for calculating RSSI averages, such as
As the fruit transmission rate transmission rate definite with the last time, then increase the times N for calculating RSSI averages；
S4：This posterior nodal point uploads data, and the RSSI averages of nearest n times upload data are calculated using the average method of displacement,
Transmit power is the power being successfully transmitted last time, and transmission rate is the rate after adjustment, and repeats step S2 and judge hair next time
It send whether power will modify, judges whether transmission rate changes；
S5：If node continuous N time uploads the situation that transmission rate variation all occur in data, illustrate that system environments changes
Acutely, it should reduce the number for seeking RSSI averages N, reduce the mode of error to tackle；If node continuous N time uploads data all
There is not the situation of transmission rate variation, illustrate that system environments is steady, the number for seeking RSSI averages N need to be increased, increase essence
The mode of degree is tackled, and reduces transmit power, so that the system is reached after smooth working in the case where meeting normal communication
To the purpose of low-power consumption.
Compared with prior art, the advantageous effect of technical solution of the present invention is：
The method of the present invention plays an important role of that adaptively adjusting node-node transmission rate and power realizes low-power consumption；According to nearest N
The secondary RSSI averages for uploading data adjust transmission rate and transimission power, embody the variation of system environments, can be adaptive
Different system environments, the method for being more suitable for adaptive low-power consumption.
Description of the drawings
Fig. 1 the method for the present invention flow charts.
After Fig. 2 contacts for node with gateway foundation, the process schematic of node and gateway interaction data；
Fig. 3 is the method for the present invention flow chart.
Specific embodiment
Attached drawing is only for illustration, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in attached drawing
's.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
The Low-power-consumptiocontrol control method that a kind of LoRaWAN adaptive powers and rate combine, comprises the following steps：
1) as shown in Figure 1, node after the power is turned on, transmission rate is set to DR0 states, and transmit power is set to minimum value Pmin.First
After secondary upload data, gateway is waited to reply and confirms instruction, instruction contains the RSSI value of this transmission, transmission rate information.If
The confirmation instruction of gateway is not received, then increase transmit power and reduces transmission rate, is until the confirmation for receiving gateway instructs
Only.
2) RSSI value being successfully transmitted according to last time data is counted as Node_RSSI, if Node_RSSI_high>Node_
RSSI>Node_RSSI_low illustrates that transmit power is moderate, and the transmit power of data can be uploaded as lower minor node；If Node_
RSSI>Node_RSSI_high illustrates that this transmit power is too big, and energy consumption is too high, can reduce this transmit power as under
Minor node uploads the transmit power of data；If Node_RSSI<Node_RSSI_low illustrates that this transmit power is too small, although
Energy success communication, but it is dangerous there are potential packet loss, it should increase transmit power, amended transmit power is then as next time
Node uploads the transmit power of data.The RSSI value that gateway is successfully uploaded according to data determines the appropriate speed of its work, as a result
Among the reception success confirmation instruction ACK issued.
3) data are uploaded as shown in Fig. 2, after the foundation of node and gateway contacts, for second, this transmit power for last time into
The power that work(is sent, and repeat the 2) step judge whether next transmit power will modify, calculate RSSI averages simultaneously basis
The average determines transmission rate, if transmission rate and last definite transmission rate are inconsistent, it is equal to reduce calculating RSSI
The times N of value.If as the transmission rate transmission rate definite with the last time, increase the times N for calculating RSSI averages.
4) furtherly, this posterior nodal point uploads data, and nearest n times upload data are calculated using average method is shifted
RSSI averages, transmit power are the power that is successfully transmitted of last time, and transmission rate is the rate after adjustment, and repeat the 2) step
Judge whether next transmit power will modify, judge whether transmission rate changes.
5) such as Fig. 3 Fig. 3, if node continuous N time uploads the situation that transmission rate variation all occur in data, system is illustrated
Environmental change is violent, it should reduce the number for seeking RSSI averages N, reduce the mode of error to tackle；If in node continuous N time
The situation that transmission rate variation all do not occur in data is passed, illustrates that system environments is steady, it should increase time for seeking RSSI averages N
Number, increases the mode of precision to tackle.And reduce transmit power, make system after smooth working, meeting normal communication
In the case of achieve the purpose that low-power consumption.
The same or similar label correspond to the same or similar components；
Position relationship is used for only for illustration described in attached drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (1)
1. the Low-power-consumptiocontrol control method that a kind of LoRaWAN adaptive powers and rate combine, which is characterized in that including following step
Suddenly：
S1：After the power is turned on, transmission rate is set to DR0 states to node, and transmit power is set to minimum value Pmin, uploads data for the first time
Afterwards, gateway is waited to reply and confirms instruction, RSSI value, the transmission rate information of this transmission are contained in instruction, if not receiving
The confirmation instruction of gateway, then increase transmit power, until the confirmation for receiving gateway instructs；
S2：Node_RSSI is counted as according to the RSSI value that last time data are successfully transmitted, if upper limit value Node_RSSI_high>Node_
RSSI>Lower limiting value Node_RSSI_low illustrates that transmit power is moderate, and the transmit power of data is uploaded as lower minor node；If
Node_RSSI>Upper limit value Node_RSSI_high illustrates that this transmit power is too big, and energy consumption is too high, this transmit power is subtracted
The small transmit power that data are uploaded as lower minor node；If Node_RSSI<Lower limit Node_RSSI_low illustrates this time to send work(
Rate is too small, although energy success communication, dangerous there are potential packet loss, need to increase transmit power, amended transmit power
The transmit power of data is then uploaded as lower minor node；
S3：After node is contacted with gateway foundation, second of upload data, this transmit power is the power being successfully transmitted last time,
And it repeats step S2 and judges whether next transmit power will modify, calculate RSSI averages and transmission speed is determined according to the average
Rate if transmission rate and last definite transmission rate are inconsistent, reduces the times N for calculating RSSI averages, if passed
As the defeated rate transmission rate definite with the last time, then increase the times N for calculating RSSI averages；
S4：This posterior nodal point uploads data, using the RSSI averages for shifting the nearest n times upload data of average method calculating, sends
Power is the power being successfully transmitted last time, and transmission rate is the rate after adjustment, and repeats step S2 and judge that next time sends work(
Whether rate will modify, and judge whether transmission rate changes；
S5：If node continuous N time uploads the situation that transmission rate variation all occur in data, illustrate that system environments variation is acute
It is strong, it should to reduce the number for seeking RSSI averages N, reduce the mode of error to tackle；All do not have if node continuous N time uploads data
The situation of transmission rate variation has been occurred, has illustrated that system environments is steady, the number for seeking RSSI averages N need to be increased, has increased precision
Mode tackle, and reduce transmit power, so that the system is reached after smooth working in the case where meeting normal communication
The purpose of low-power consumption.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640484A (en) * | 2018-12-26 | 2019-04-16 | 合肥大明节能科技股份有限公司 | Single-lamp controller |
| CN110996383A (en) * | 2018-10-02 | 2020-04-10 | 卡西欧计算机株式会社 | Wireless communication device, electronic timepiece, transmission power control method, and storage medium |
| CN113038541A (en) * | 2021-03-04 | 2021-06-25 | 重庆邮电大学 | Adaptive LoRaWAN network rate adjusting method based on conflict perception |
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| CN110996383A (en) * | 2018-10-02 | 2020-04-10 | 卡西欧计算机株式会社 | Wireless communication device, electronic timepiece, transmission power control method, and storage medium |
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Application publication date: 20180601 |