CN102548036A - Star-shaped self-networking mode of wireless sensor network based on TDMA (time division multiple address) - Google Patents
Star-shaped self-networking mode of wireless sensor network based on TDMA (time division multiple address) Download PDFInfo
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- CN102548036A CN102548036A CN2012100491220A CN201210049122A CN102548036A CN 102548036 A CN102548036 A CN 102548036A CN 2012100491220 A CN2012100491220 A CN 2012100491220A CN 201210049122 A CN201210049122 A CN 201210049122A CN 102548036 A CN102548036 A CN 102548036A
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Abstract
The invention relates to a star-shaped self-networking mode and a system of a wireless sensor network based on TDMA (time division multiple address). The technical scheme of the system is: all coordinators at the same wireless sensor network operate by using the same frequency; the coordinators with the same frequency interference operate through a TDMA mode (namely when one coordinator operates at the wireless sensor network, the normal communication of the other coordinator is influenced), when one coordinator A operates, other coordinators which possibly interference the coordinator A or are interfered by the coordinator A stop operating; and the coordinators without the same frequency interference can operate simultaneously (namely when one coordinator in the wireless sensor network operates, the influence to another coordinator can be neglected). According to the invention, not only can the same frequency interference be avoided, but also the unnecessary band width distribution can be saved.
Description
Technical field
The present invention relates to wireless sensor network technology, be specifically related to the network-building method and the system of wireless sensor network.
Background technology
Wireless sensor network (Wireless Sensor Networks; WSN) begun at present to be widely used in the social all trades and professions such as industry monitoring, intelligent grid, Smart Home, intelligent transportation, public safety, health care, environmental protection; Be particularly useful for the field that some is inconvenient to connect up, for example industrial circle such as power high voltage equipment on-line monitoring, slewing vibration online monitoring; Or some often needs the occasion of mobile test, for example commerical test data acquisition system etc.
With Zigbee is the wireless sensor network of representative, and the networking mode district through CDMA (Code-Division Multi-Access) or communication of straight sequence spread spectrum (Direct-Sequence Spread-Spectrum) and FDMA (Frequency-Division Multi-Access) realizes telegon (Coordinator) and the communication between the affiliated terminal equipment (Device) in the wireless sensor network.
With CDMA is in the wireless sensor network of networking mode; Adjacent telegon uses same frequency to carry out work; When one of them telegon and affiliated terminal equipment communicate; Need to distinguish different telegons, thereby avoid interference from other telegons and affiliated terminal equipment thereof through spread spectrum, therefore:
1) must use higher wireless bandwidth to realize spread spectrum communication;
2) when the telegon in the network is communicated by letter with affiliated terminal equipment, need control the same frequency that suppresses from other telegons and equipment through power and disturb;
3) transceiver architecture of spread spectrum communication is complicated more, implements very difficulty.
With FDMA is the wireless sensor network of networking mode, and adjacent telegon communicates through using different working frequency and the terminal equipment under it, thereby avoids with interference frequently, thereby makes:
1) must use more wireless bandwidths to distribute to different telegons uses;
2) when terminal equipment is being operated in telegon on the different frequency and switches, need the telegon on the frequency that extra monitoring institute might exist, thereby caused the physics realization of expense with the complicacy of unnecessary time;
3) break down can not work the time when certain telegon, terminal equipment must be adjusted operating frequency under it, be linked into the telegon on other frequencies, so the robustness of network is not strong, the self-healing ability.
Summary of the invention
In order to overcome the deficiency of prior art, the objective of the invention is to propose a kind of can either avoiding and to save the wireless sensor network star ad hoc network method and the system based on TDMA of unnecessary allocated bandwidth again with disturbing frequently.
Wireless sensor network star ad hoc network method based on TDMA provided by the invention comprises the steps:
A) in same wireless sensor network, arrange a plurality of telegons; Each telegon be set to through time division multiple access way with its under several terminal equipments communicate, also be set between a plurality of telegons communicate through time division multiple access way, all telegons all are configured such that with same frequency and carry out work;
B) if when one of them telegon work, other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference;
C) if wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.
As preferably, the network connection architecture of wireless sensor network is a star topology.
As preferably, a plurality of telegons be defined as respectively telegon 1, telegon 2 ..., telegon N; Terminal equipment 11, terminal equipment 12 ..., terminal equipment 1M communicates by letter with telegon 1 respectively; Terminal equipment 21, terminal equipment 22 ..., terminal equipment 2X communicates by letter with telegon 2 respectively;, terminal equipment N1, terminal equipment N2 ..., terminal equipment NK communicates by letter with telegon N respectively; If terminal equipment 11 switches to when communicating by letter with telegon 2 from telegon 1, the call duration time of terminal equipment 11 is adjusted into the operating time of telegon 2; Wherein, N, M, X, K are the natural number greater than 0.
Preferred; When if telegon 2 breaks down; And the working signal scope of telegon 1 covers all former terminal equipments of communicating by letter with telegon 2, and at this moment, the operating time of telegon 1 can be set to the function of preceding operating time of telegon 2 faults with replacement telegon 2.
Realize the wireless sensor network star MANET system based on TDMA of the above-mentioned network-building method of the present invention, comprising:
A plurality of telegons and a plurality of terminal equipment; A plurality of telegons all are arranged in same wireless sensor network; Each telegon be set to through time division multiple access way with its under several terminal equipments communicate; Also be set between a plurality of telegons communicate through time division multiple access way, all telegons all are configured such that with same frequency and carry out work; If when one of them telegon work, other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference; If wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.
As preferably, the network connection architecture of wireless sensor network is a star topology.
As preferably, a plurality of telegons be defined as respectively telegon 1, telegon 2 ..., telegon N; Terminal equipment 11, terminal equipment 12 ..., terminal equipment 1M communicates by letter with telegon 1 respectively; Terminal equipment 21, terminal equipment 22 ..., terminal equipment 2X communicates by letter with telegon 2 respectively;, terminal equipment N1, terminal equipment N2 ..., terminal equipment NK communicates by letter with telegon N respectively; If terminal equipment 11 switches to when communicating by letter with telegon 2 from telegon 1, the call duration time of terminal equipment 11 is adjusted into the operating time of telegon 2; Wherein, N, M, X, K are the natural number greater than 0.
Preferred; When if telegon 2 breaks down; And the working signal scope of telegon 1 covers all former terminal equipments of communicating by letter with telegon 2, and at this moment, the operating time of telegon 1 can be set to the function of preceding operating time of telegon 2 faults with replacement telegon 2.
Compared with prior art, the present invention has following beneficial effect fruit:
Each equipment in the wireless sensor network, the mode through the time-division communicates, and has avoided greatly reducing the requirement to wireless sensor network equipment with disturbing frequently and having saved unnecessary allocated bandwidth.Networking mode with respect to existing C DMA and FDMA mode has advantage:
1) occupied bandwidth is narrow, is fit to network planning optimization, practices thrift radio resource to greatest extent, simplifies the network planning and optimizes difficulty;
2) need not use spread spectrum communication mode, thus the simplified receiver design difficulty;
3) need not use the TDMA inter-frequency networking, thus the simplified receiver design difficulty;
4) terminal equipment of having simplified wireless sensor network is moved to the realization difficulty of another telegon from a telegon;
5) networking mode possesses self-healing function, and better robustness is provided when the telegon fault.
Description of drawings
Fig. 1 is the structural representation based on the wireless sensor network star MANET system of TDMA of preferred embodiment of the present invention.
Embodiment
Below, in conjunction with accompanying drawing and embodiment, the present invention done further describing, so that clearerly understand the present invention's technological thought required for protection.
It is the wireless sensor network of networking mode with TDMA that present embodiment has proposed a kind of; Each equipment in this wireless sensor network; Mode through the time-division communicates, and has avoided greatly reducing the requirement to wireless sensor network equipment with disturbing frequently and having saved unnecessary allocated bandwidth.
The wireless sensor network star ad hoc network method based on TDMA that present embodiment provides comprises the steps:
A) in same wireless sensor network, arrange a plurality of telegons; Each telegon be set to through time division multiple access way with its under several terminal equipments communicate, also be set between a plurality of telegons communicate through time division multiple access way, all telegons all are configured such that with same frequency and carry out work;
B) if when one of them telegon work; Other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference; That is to say; When by the telegon that disturbs frequently together, when interference also is not enough to influence its operate as normal frequently together, still can be used by the telegon that disturbs with frequency;
C) if wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.
In the said method, the network connection architecture of wireless sensor network is a star topology.
As shown in Figure 1; Present embodiment has also proposed a kind of wireless sensor network star MANET system based on TDMA that realizes said method; It comprises five telegons and 21 terminal equipments; These five telegons are designated as telegon 1, telegon 2, telegon 3, telegon 4, telegon 5 respectively, and these 21 terminal equipments are designated as terminal equipment 11, terminal equipment 12, terminal equipment 13, terminal equipment 14, terminal equipment 15, terminal equipment 21, terminal equipment 22, terminal equipment 23, terminal equipment 24, terminal equipment 31, terminal equipment 32, terminal equipment 33, terminal equipment 34, terminal equipment 35, terminal equipment 36, terminal equipment 41, terminal equipment 42, terminal equipment 43, terminal equipment 51, terminal equipment 52, terminal equipment 53 respectively.These five telegons all are arranged in same wireless sensor network; Each telegon be set to through time division multiple access way with its under several terminal equipments communicate, promptly terminal equipment 11, terminal equipment 12, terminal equipment 13, terminal equipment 14, terminal equipment 15 all only communicate with telegon 1; Terminal equipment 21, terminal equipment 22, terminal equipment 23, terminal equipment 24 all only communicate with telegon 2; Terminal equipment 31, terminal equipment 32, terminal equipment 33, terminal equipment 34, terminal equipment 35, terminal equipment 36 all only communicate with telegon 3; Terminal equipment 41, terminal equipment 42, terminal equipment 43 all only communicate with telegon 4; Terminal equipment 51, terminal equipment 52, terminal equipment 53 all only communicate with telegon 5.Also be set to communicate through time division multiple access way between these five telegons, all telegons are configured such that all with same frequency and carry out work that promptly these five telegons all are operated on the same frequency.
If when one of them telegon work, other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference; If wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.Concrete, can be referring to Fig. 1, during telegon 1 work, its coverage 100 covered telegon 2, telegon 3, telegon 4, telegon 5 with and affiliated terminal equipment 11, terminal equipment 12, terminal equipment 13, terminal equipment 14, terminal equipment 15; During telegon 2 work, its coverage 200 cover telegon 3 with and affiliated terminal equipment 21, terminal equipment 22, terminal equipment 23, terminal equipment 24; During telegon 3 work, its coverage 300 only covers terminal equipment 31, terminal equipment 32, terminal equipment 33, terminal equipment 34, terminal equipment 35, the terminal equipment 36 under it; During telegon 4 work, its coverage 400 only covers terminal equipment 41, terminal equipment 42, the terminal equipment 43 under it; During telegon 5 work, its coverage 500 covers terminal equipment 51, terminal equipment 52, the terminal equipment 53 under it.That is to say; During telegon 1 work; Can produce with disturbing frequently telegon 2, telegon 3, telegon 4, telegon 5; When communicating, telegon 2, telegon 3, telegon 4, telegon 5 are not all worked with its corresponding device (being any in terminal equipment 11, terminal equipment 12, terminal equipment 13, terminal equipment 14, the terminal equipment 15) when telegon 1; When one in telegon 2, telegon 3, telegon 4, the telegon 5 was communicated by letter with affiliated terminal equipment, telegon 1 was not worked; Because telegon 2 does not produce with disturbing frequently with telegon 5, telegon 2 allows in identical time service with telegon 5.
If terminal equipment 33 need (terminal equipment 33 terminations be communicated by letter with telegon 3 when telegon 3 switches to telegon 2; Beginning is communicated by letter with telegon 2; Terminal equipment 33 becomes the corresponding device of telegon 2); Only need be adjusted into the operating time of telegon 2 to the call duration time of terminal equipment 33, and do not need the operating frequency of switching terminal equipment 33, the requirement of device design is greatly reduced.
In addition; Can know by Fig. 1; The working signal scope of telegon 1 (being coverage 100) can cover the terminal equipment that all are communicated by letter with telegon 3, and when telegon 3 broke down, operating time that can telegon 1 was set to the operating time before telegon 3 faults; With the function of replacement telegon 3, thus the self-repair function of completion wireless sensor network.
The network connection architecture of the wireless sensor network of present embodiment can adopt star topology; Be that 15 on terminal equipment 11, terminal equipment 12, terminal equipment 13, terminal equipment 14, terminal equipment are communicated by letter with telegon 1; Handle the thing that to do by telegon 1 decision; If terminal equipment 11 need transmit data to terminal equipment 23, terminal equipment 11 can send to telegon 1 to data, forwards the data to telegon 2 by telegon 1 then; Send to terminal equipment 23 to data by telegon 2 again, so analogize.
In addition, present embodiment only is an application example of the present invention, does not cause the quantity to telegon, the quantity of terminal equipment and the coverage of telegon to make restriction.
Of the present inventionly be at all:
1) all telegons that are in the same wireless sensor network use same frequency to carry out work;
2) exist telegon to carry out work through the mode of time division multiple access with interference frequently (being that the proper communication to another telegon exerted an influence when a certain telegon was worked in the wireless sensor network); In the time of one of them telegon A work, other might interference coordination device A or the telegon that disturbs of coordinated device A quit work;
3) do not exist with the telegon that disturbs frequently (being to ignore to the influence of another telegon when a certain telegon is worked in the wireless sensor network), can work simultaneously.
That is to say that on the basis of satisfying the wireless transmission requirement, two telegons of adjacent space can use identical timeslice work (being that these two telegons allow in identical time service); Like this; Not only frequency spectrum resource has been used in maximization, improves covering power, has also practiced thrift transmitter power simultaneously; Reduce power consumption, extending battery life.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of claim of the present invention all according to the technical scheme and the design of above description.
Claims (8)
1. based on the wireless sensor network star ad hoc network method of TDMA, it is characterized in that, may further comprise the steps:
A) in same wireless sensor network, arrange a plurality of telegons; Each telegon be set to through time division multiple access way with its under several terminal equipments communicate, also be set between a plurality of telegons communicate through time division multiple access way, all telegons all are configured such that with same frequency and carry out work;
B) if when one of them telegon work, other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference;
C) if wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.
2. the wireless sensor network star ad hoc network method based on TDMA as claimed in claim 1 is characterized in that the network connection architecture of wireless sensor network is a star topology.
3. the wireless sensor network star ad hoc network method based on TDMA as claimed in claim 1 is characterized in that, a plurality of telegons be defined as respectively telegon 1, telegon 2 ..., telegon N; Terminal equipment 11, terminal equipment 12 ..., terminal equipment 1M communicates by letter with telegon 1 respectively; Terminal equipment 21, terminal equipment 22 ..., terminal equipment 2X communicates by letter with telegon 2 respectively;, terminal equipment N1, terminal equipment N2 ..., terminal equipment NK communicates by letter with telegon N respectively; If terminal equipment 11 switches to when communicating by letter with telegon 2 from telegon 1, the call duration time of terminal equipment 11 is adjusted into the operating time of telegon 2; Wherein, N, M, X, K are the natural number greater than 0.
4. the wireless sensor network star ad hoc network method based on TDMA as claimed in claim 3; It is characterized in that; When if telegon 2 breaks down; And the working signal scope of telegon 1 covers all former terminal equipments of communicating by letter with telegon 2, and at this moment, the operating time of telegon 1 can be set to the function of preceding operating time of telegon 2 faults with replacement telegon 2.
5. based on the wireless sensor network star MANET system of TDMA; Comprise a plurality of telegons and a plurality of terminal equipment; It is characterized in that a plurality of telegons all are arranged in same wireless sensor network, each telegon be set to through time division multiple access way with its under several terminal equipments communicate; Also be set between a plurality of telegons communicate through time division multiple access way, all telegons all are configured such that with same frequency and carry out work; If when one of them telegon work, other one or more telegons generations frequency are together disturbed, during by the telegon cisco unity malfunction of frequency interference together, then quit work by telegon with the frequency interference; If wherein do not exist between two or more telegons with disturbing frequently, these do not exist the telegon that disturbs frequently together to allow in identical time service.
6. the wireless sensor network star MANET system based on TDMA as claimed in claim 5 is characterized in that the network connection architecture of wireless sensor network is a star topology.
7. the wireless sensor network star MANET system based on TDMA as claimed in claim 5 is characterized in that, a plurality of telegons be defined as respectively telegon 1, telegon 2 ..., telegon N; Terminal equipment 11, terminal equipment 12 ..., terminal equipment 1M communicates by letter with telegon 1 respectively; Terminal equipment 21, terminal equipment 22 ..., terminal equipment 2X communicates by letter with telegon 2 respectively;, terminal equipment N1, terminal equipment N2 ..., terminal equipment NK communicates by letter with telegon N respectively; If terminal equipment 11 switches to when communicating by letter with telegon 2 from telegon 1, the call duration time of terminal equipment 11 is adjusted into the operating time of telegon 2; Wherein, N, M, X, K are the natural number greater than 0.
8. the wireless sensor network star MANET system based on TDMA as claimed in claim 5; It is characterized in that; When if telegon 2 breaks down; And the working signal scope of telegon 1 covers all former terminal equipments of communicating by letter with telegon 2, and at this moment, the operating time of telegon 1 can be set to the function of preceding operating time of telegon 2 faults with replacement telegon 2.
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| CN109065048A (en) * | 2018-09-12 | 2018-12-21 | 深圳市卓翼科技股份有限公司 | Sound control method and device |
| CN109245934A (en) * | 2018-09-25 | 2019-01-18 | 珠海格力电器股份有限公司 | Fault handling method, device, system, control facilities and administration equipment |
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| CN109039756A (en) * | 2018-08-20 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of wireless network control system and its fault repairing method |
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| CN109245934A (en) * | 2018-09-25 | 2019-01-18 | 珠海格力电器股份有限公司 | Fault handling method, device, system, control facilities and administration equipment |
| CN109245934B (en) * | 2018-09-25 | 2021-10-15 | 珠海格力电器股份有限公司 | Fault processing method, device, system, control equipment and management equipment |
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