CN108521675A - A kind of low-consumption wireless collision-proof method - Google Patents
A kind of low-consumption wireless collision-proof method Download PDFInfo
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- CN108521675A CN108521675A CN201810365402.XA CN201810365402A CN108521675A CN 108521675 A CN108521675 A CN 108521675A CN 201810365402 A CN201810365402 A CN 201810365402A CN 108521675 A CN108521675 A CN 108521675A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 210000004209 hair Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
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Abstract
The invention discloses a kind of low-consumption wireless collision-proof methods, are related to wireless control field, including step：S10 sets delay parameter and RSSI threshold parameters in transmitting terminal；S20, transmitting terminal carry out timing according to delay parameter；S30, transmitting terminal obtain RSSI value out of place spatial dimension；S40, transmitting terminal compare the RSSI value obtained out of current spatial and the RSSI threshold parameters of setting；S50, transmitting terminal emit wireless signal；S60, receiving terminal receives and handles wireless signal, if the RSSI threshold parameters of the RSSI value and setting that are obtained out of current spatial in S40 compare, the parameter area of RSSI threshold parameters is not met, then transmitting terminal comes back to step S20 and carries out timing, by the method for time and spatial spreading, effectively reduces power consumption while realizing the purpose of wireless signal anticollision.
Description
Technical field
The present invention relates to wireless control fields, and in particular to a kind of low-consumption wireless collision-proof method.
Background technology
With the continuous improvement of people's living standards, the equipment using wireless control is more and more, inevitably just hold
Easily there is the problems such as co-channel interference, control failure, may bring great inconvenience to user, in existing wireless technology often
Method includes that transmitting terminal emits a wireless signal to receiving terminal, and this method wireless signal is easy to lose because of interference
It loses, another method is that transmitting terminal transmitting persistently emits multiple wireless signal, and this method can greatly improve the success of reception
Rate, but its power consumption, with regard to very high, transmitting terminal is easy out of power quickly.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of wireless collision-proof methods of low-power consumption.
The technical solution adopted in the present invention is to achieve the goals above：A kind of low-consumption wireless collision-proof method, packet
Include transmitting terminal and receiving terminal, including step：
S10 sets delay parameter and RSSI threshold parameters in transmitting terminal；
S20, transmitting terminal carry out timing according to delay parameter；
S30, transmitting terminal obtain RSSI value out of place spatial dimension；
S40, transmitting terminal compare the RSSI value obtained out of current spatial and the RSSI threshold parameters of setting；
S50, transmitting terminal emit wireless signal；
S60, receiving terminal receive and handle wireless signal.
If the RSSI threshold parameters of the RSSI value and setting that are obtained out of current spatial in S40 compare, do not meet
The parameter area of RSSI threshold parameters, then transmitting terminal come back to step S20 and carry out timing.
By using above-mentioned technical proposal, the time for emitting signal between transmitting terminal and transmitting terminal is differentiated, and lead to
It crosses and obtains the intensity that the RSSI value in current spatial determines signal interference in current spatial, whether can currently be sent out in this, as judgement
The condition of signal is penetrated, the probability of radio signal collision is so just first reduced from launch time, then by limiting current spatial
The RSSI threshold parameter ranges that signal can be emitted, there are the possibility that high intensity is interfered in current spatial when avoiding transmitting signal
Property, improve the success rate of transmitting signal.
Preferably, the delay parameter that transmitting terminal is set in S10 is generated at random by function.
By using above-mentioned technical proposal, each transmitting terminal can one delay parameter of automated randomized generation, so
Reduce artificial intervention, the possibility that signal interferes greatly is reduced while emitted from the probability of random function
Property.
Preferably, the delay parameter range generated at random is 20-200ms.
By using above-mentioned technical proposal, a suitable range is on the time of transmitting terminal delay emission signal, both
It will not lead to the increase of signal collision probability, the power consumption of transmitting terminal will not be caused to increase.
Preferably, the signal of transmitting terminal single emission includes the data packets of multiple repetitions in S50.
By using above-mentioned technical proposal, can avoid because partly interference leads to the loss of data packet present in space.
Preferably, the quantity of the data packet is 3.
By using above-mentioned technical proposal, can be avoided because of the interference in space under the premise of ensureing transmitting terminal power consumption
The loss of caused data packet.
Preferably, each data packet is equipped with synchronous code and ID codes.
By using above-mentioned technical proposal, data is made to be surrounded by identified foundation, greatly prevents losing for data packet
It loses.
Compared with the prior art, the advantages of the present invention are as follows：Wireless signal can be prevented in the case where ensureing low-power consumption
Collision.
Description of the drawings
Fig. 1 is the flow diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
Embodiment 1
A kind of low-consumption wireless collision-proof method as shown in Figure 1 comprising transmitting terminal and receiving terminal, its step are as follows：
S10 sets delay parameter and RSSI threshold parameters in transmitting terminal；
S20, transmitting terminal carry out timing according to delay parameter；
S30, transmitting terminal obtain RSSI value out of place spatial dimension；
S40, transmitting terminal compare the RSSI value obtained out of current spatial and the RSSI threshold parameters of setting；
S50, transmitting terminal emit wireless signal；
S60, receiving terminal receive and handle wireless signal.
If the RSSI threshold parameters of the RSSI value and setting that are obtained out of current spatial in S40 compare, do not meet
The parameter area of RSSI threshold parameters, then transmitting terminal come back to step S20 and carry out timing.
In the present embodiment, the delay parameter set in the system of transmitting terminal in S10 is wireless for limiting transmitting terminal transmitting
The time of signal, unit are millisecond (ms), so assume to have transmitting terminal A and transmitting terminal B while needing to emit wireless signal, to it
Transmitting terminal A emits after being delayed 20ms after setting delay parameter, and transmitting terminal B emits after being delayed 40ms, then has been spaced apart its hair
The time for penetrating wireless signal avoids the collision of its signal.
In the present embodiment, for judging, signal interference is strong in space as one for the RSSI threshold parameters set in S10
The parameter area of degree will carry out the RSSI value in space after the completion of transmitting terminal is according to the delay parameter timing set
It checks, the RSSI value got in space is compared with the RSSI threshold parameters set then, sees the RSSI in space
Whether value is within the scope of suitable interference strength, and transmitting terminal can emit if meeting launching condition, if the RSSI value in space
The range for not meeting the RSSI threshold parameters set then illustrates there is signal interference in space, then transmitting terminal comes back to S20's
Step re-starts timing waiting and emits next time, so in the case where more transmitting terminals are carried out at the same time, passes through the time first
The time interval that transmitting terminal is emitted wireless signal by delay is opened, then in order to avoid the delay time set between transmitting terminal exists
The possibility repeated, is further detected the signal interference intensity in space, to avoid wireless communication to the greatest extent
Number collision possibility.
In the present embodiment, the delay parameter of transmitting terminal setting is generated at random by function, the delay parameter generated at random
Range reduces human intervention in 20-200ms, such transmitting terminal, and multiple hairs are greatly reduced from random number probability
It penetrates end while emitting the possibility that signal generates interference, while the power consumption that transmitting terminal parameter will not be made excessive.
In the present embodiment, the signal of each transmitting terminal single emission includes the data packet of 3 repetitions, and each data packet is all provided with
There are a synchronous code and ID codes, such data packet just has identified foundation, even if while emitting 3 data packets and can be deposited in space
There is partial data packet loss in interference, can also improve the success rate of reception as far as possible.
According to the present embodiment, the anti-collision capacity of wireless signal is emitted to 3 transmitting terminals and power consumption is tested, as a result such as
Under：
The transmitting terminal selected in test is made of microcontroller (PIC16LF1936) and wireless chip A7139.
For A7139 under 100K rates, transmitting 16 byte numbers, one group of data need used time 13.6ms, random to send with 20ms
Integral multiple send 3 packets at random, packet maximum delay is 60ms, therefore distributes 3 bag datas up to 180ms, passes through the time
The probability of interval collision has been lowered to 1/9, if the same packet number sent get over the probability that multipacting is hit will be smaller.
Wherein by test, A7139 and microcontroller (1MHz) emit required electric current at 7DBM (DBM is transmission power)
About 18mA (mA is current unit), when not emitting, standby required electric current is 1mA, and the electric current for obtaining RSSI values is 5mA, if 3
A transmitting terminal without delay emission, then required for consume power P=18mA*180ms=3240mA.ms；And it uses and prolongs
When transmitting after, required power P=18mA*60ms+1mA*120ms=1200mA.ms, the power of reduction has some idea of.
But only makes transmitting terminal delay emission by the way that delay parameter is arranged, but still might have the possibility of collision, 3 hairs
It is only as follows by the collision situation of delay emission to penetrate end：
A emits +++ and+B emits --- C transmittings====
There is the case where still hitting packet among this known to table.
After the step of detecting RSSI value is added, transmitting terminal can all detect current RSSI value before transmission, until space
In annoyance level comply with standard after, then emitted, the method by being detected after delay, when 3 transmitting terminals transmittings
Collision situation is as follows：
1, A emits +++ and+B emits --- C transmittings====
| 20ms | 40 | 60 | 80 | 10 | 120 | 140 | 160 | 180ms | |
| A emits | ++++ | ++++ | ++++ | ||||||
| B emits | —— | —— | —— | ||||||
| C emits | ==== | ==== | ==== |
The possibility of data-bag lost caused by signal interference in space is so avoided to the greatest extent.
And this result that power detection is carried out to the method is：
Power P=18mA*60ms+1mA*120ms+5mA*1ms*6=1230mA.ms
It can be seen that the present invention realizes the purpose for making wireless signal anticollision under the premise of low-power consumption.
Although the preferred embodiment of the present invention described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Appoint made by all within the spirits and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of low-consumption wireless collision-proof method, including transmitting terminal and receiving terminal, which is characterized in that including step：
S10 sets delay parameter and RSSI threshold parameters in transmitting terminal；
S20, transmitting terminal carry out timing according to delay parameter；
S30, transmitting terminal obtain RSSI value out of place spatial dimension；
S40, transmitting terminal compare the RSSI value obtained out of current spatial and the RSSI threshold parameters of setting；
S50, transmitting terminal emit wireless signal；
S60, receiving terminal receive and handle wireless signal.
If the RSSI threshold parameters of the RSSI value and setting that are obtained out of current spatial in S40 compare, RSSI are not met
The parameter area of parameter is limited, then transmitting terminal returns to step S20 and re-starts timing.
2. low-consumption wireless collision-proof method according to claim 1, which is characterized in that the delay parameter of transmitting terminal setting
It is generated at random by function.
3. low-consumption wireless collision-proof method according to claim 2, which is characterized in that the delay ginseng generated at random
Number range is 20-200ms.
4. low-consumption wireless collision-proof method according to claim 1, which is characterized in that transmitting terminal single emission in S50
Signal include the data packets of multiple repetitions.
5. low-consumption wireless collision-proof method according to claim 4, which is characterized in that the quantity of the data packet is 3
It is a.
6. low-consumption wireless collision-proof method according to claim 4, which is characterized in that each data packet is equipped with
Synchronous code and ID codes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365402.XA CN108521675A (en) | 2018-04-23 | 2018-04-23 | A kind of low-consumption wireless collision-proof method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810365402.XA CN108521675A (en) | 2018-04-23 | 2018-04-23 | A kind of low-consumption wireless collision-proof method |
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| CN108521675A true CN108521675A (en) | 2018-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278058A (en) * | 2020-01-20 | 2020-06-12 | 全球能源互联网研究院有限公司 | Method, device and storage medium for coordinating conflict of random access signal |
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| CN102118824A (en) * | 2011-01-14 | 2011-07-06 | 利尔达科技有限公司 | Radio communication anti-collision method based on received signal strength indicator (RSSI) |
| CN102695256A (en) * | 2012-05-29 | 2012-09-26 | 无锡赛睿科技有限公司 | Parallel transmission method and system thereof for wireless sensor network |
| CN105049135A (en) * | 2015-05-29 | 2015-11-11 | 上海斐讯数据通信技术有限公司 | Conducted interference debugging method and system of frequency modulation (FM) signals and electronic equipment |
| US20160150535A1 (en) * | 2014-11-21 | 2016-05-26 | Panasonic Intellectual Property Management Co., Ltd. | Wireless communication device |
| US20180102032A1 (en) * | 2016-10-10 | 2018-04-12 | Netgear, Inc. | Intruder detection using a wireless service mesh network |
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2018
- 2018-04-23 CN CN201810365402.XA patent/CN108521675A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN102118824A (en) * | 2011-01-14 | 2011-07-06 | 利尔达科技有限公司 | Radio communication anti-collision method based on received signal strength indicator (RSSI) |
| CN102695256A (en) * | 2012-05-29 | 2012-09-26 | 无锡赛睿科技有限公司 | Parallel transmission method and system thereof for wireless sensor network |
| US20160150535A1 (en) * | 2014-11-21 | 2016-05-26 | Panasonic Intellectual Property Management Co., Ltd. | Wireless communication device |
| CN105049135A (en) * | 2015-05-29 | 2015-11-11 | 上海斐讯数据通信技术有限公司 | Conducted interference debugging method and system of frequency modulation (FM) signals and electronic equipment |
| US20180102032A1 (en) * | 2016-10-10 | 2018-04-12 | Netgear, Inc. | Intruder detection using a wireless service mesh network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278058A (en) * | 2020-01-20 | 2020-06-12 | 全球能源互联网研究院有限公司 | Method, device and storage medium for coordinating conflict of random access signal |
| CN111278058B (en) * | 2020-01-20 | 2022-09-23 | 全球能源互联网研究院有限公司 | Method, device and storage medium for coordinating conflict of random access signal |
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Application publication date: 20180911 |
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