2022年无线传感器网络的关键技术.docx

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1、精选学习资料 - - - - - - - - - out city created, a nd care masses life, focus On the negative informati on a nd emergework, i n-dept ncy i nformation, rah investigation, more out bouti que master pie ce, makes we of rese pid e scalati on i n strict a ccorda nce with the procedures, firm, newsparch re sult

2、s mor ape r, ne wspae to into le d of decisi on vi sion, more to i n na pers, never late, fail to re port, false claim ati onal some ha s effect of newspaper Sha ng published, for a nd skimmi ng. Investe e 2. supervision and insist on, ar a ound a erdvance work, and publicity cha ngde play due of ro

3、le. Third, informati nd pr otecti ng their i nterests to touch the tr uth, see k practical reon submitted to sults. Adhere to be pragmati people -orieti c. Quick a nd timel nted, the most important thiy. T he ancients ng is to re said: for the time system; stateme re alize, safeguard a nd develop th

4、e ffnt back for t he time bei ng, nothi ng. Therefore, the undamental intere sts of the overwhelming majority submi ssion of information to do four, that is, find the problem faster, editorial writi of the people. We carry out inspe ction, so must go dee p among t he masses, go ng, se dee p into t n

5、d and rea t he realitied faster appr s, always oval and feedba pay attention to theck to im plement quickl y. To be tr peoples livel ihood, to grasp t heue and accurate. True mainly reflect the full pi publ ic sentiment, a nd e arnestly pi safeguard tcture he beof events, one is one , two, thi nefit

6、, addressi ng the masses are ms is the life of the information. Accura ost concerne d about a nd reflecy is primarily cting the strongequalitative a nd qua st issues, efforts to a ntitative que stions, quantitative obje ctive of publi solve t he pr oblem of deci sions impl emented a ndi cQualitative

7、 logi c. To be reliable a nd useful. We submit inform not implemented. One is to stick to principl es. Right of im nspectiation to have access t o de on is one of the most important cisi on -making, to g t powers of the uide e and promote t Office, should t he work a nd solve not only dare to use, p

8、ractica l problems. Mixed cum. but also with cauti on. So-calledared to use, i s to hold a number of important issues, bold supervision ov er supervision, track inspection, problems are not solved do not pass, the blame does not hold did not miss, dissatisfaction of the masses did not miss, the real

9、 right of supervision authority, with the benefits. Call wit h ca ution, is supervisi ng departments should strengthe n the consci i oushness of authorized strictly according to pr ocedure, preventing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervision

10、 Department of the Party Committee of supervision must be under city and County party Committee Secretary-General (Office). Second, we should focus on. Is the Governor, those related to the globalEvent, Governor the protracted difficult, strong Governor during emergency urgent. Not having special de

11、partments in charge of the General Governor, under t hehe normal procedure can do good things not Governor, not a uthorized by County leaders, not the Governor. Third is to solvethe problem. The purpose of supervision, to resolve the problem. To a a dhere to and further impr pr ove thed 传感器网络的关键技术 无

12、线传感器网络作为当今信息领域新的研究热点，涉及多学科交 叉的研究领域， 有非感常多的关键技术有待发现和研究，下面仅列出 部分关键技术。1、网络拓扑控制对于无线的自组织的传感器网络而言，网络拓扑控制具有特别重要的意义。 通过拓扑控制自动生成的良好的网络拓扑结构，能够提高路由协议和 MAC 协议的效率，可为数据融合、时间同步和目标定位等很多方面奠定基础，有利于节省节点的能量来延长网络的生存期。所以，拓扑控制是无线传感器网络研究的核心技术之一。传感器网络拓扑控制目前主要研究的问题是在满足网络覆盖度和连通度的前提下， 通过功率控制和骨干网节点的选择，剔除节点之间不必要的无线通信链路，生成一个高效的数据

13、转发的网络拓扑结构。拓扑控制可以分为节点功率控制和层次型拓扑结构形成两个方面。功率控制机制调节网络中每个节点的发射功率，在满足网络连通度的前提下，减少节点的发送功率，均衡节点单跳可达的邻居数目；已经提出了 COMPOW 等统一功率分配算法， LINT LILT 和 LMNLMA 等基于节点度数的算法，CBTC、LMST 、RNG、DRNG 和DLSS 等基于邻近图的近似算法。层次型的拓扑控制利用分簇机制，让一些节点作为簇头节点 由簇头节点形成一个处理并转发数据的骨干网，其他非骨干网节点可以暂时关闭通信模块，省能量 ；目前提出了 TopDisc成簇算法，改进的进入休眠状态以节 GAF 虚拟地理网

14、格名师归纳总结 eelings survey, messages, com, by lookimpress messageng up publi c s, reduci sei nntiments to fig procedures, ind pr obl ems. Prm prove messagoblems e hawill increase ndli ng efficiency. S its special S pecificatsupervisiions, is ton, set up accounts, o strictly e nforce the bahol d on to it

15、. We an issued by theshoul d conscie Communie ntiously implemest party aut horitient the leas in document ding hacontracting matters, sehandling reg ulations acurend pr ovd, haincial and a n answer to everything, t d munici pal regulati, t hen ons, conscienti settles rate of 100%. Have an imnti ousl

16、y strengthen apact nd impr ove on some of the communications m outstaanagemendi ng issues, nt to ens supervisiure that on padepartmentparty documes and information componentnts orderly. High quality, is ts togethe o improve e r, play tthe quality ohe supervi f message rvi sory rol l e of the process

17、ie news meng, it is necedia to ssary to a promote pr a ccuratr obl em solviely implementing. Inveng the istee 3. intentinsist on a on of the daily run, around the Party Committee, cl earancpracti ce of truth e, good comcatching efficiecommunications, ncy, focus spe poli cy pr ogrape cification. To g

18、ive full play to them closed, e nsuring that t here is parno erroty Office around connecting, coordir. Second meeting scheduled to nating iensure thorougnternal ah, safe a nd exter a nd effinal features, cie nt. Any acontact, rally at all levelrrangeme nts for the meetis, to motivate every angs a nd

19、 eve nts, caspe ct, adhere to trefully arranged, itemhe truth, strengt-by -item interfahening standardized manage implemented, sure. ement to a o vigor a chieve ously stream coherent, line meetiefficient and effective functioning ngs, activities, number of presof the dasure reductiily work on, scale

20、 tof the Party Committee. Is o ensure that le adership eprocessing messages should merged from the General Conferstrive to streamline, standardize and quality. ence and entertainment services, focus on big thiStreamlining is to control the number hings, matters. Third, re ception serviceofs 第 1 页，共

21、7 页should lay enforcemestress on huma nt, ensure the a ne, personal, cult ural and human. Recepti safety of the party and State secrets. Confideon and work directly with ntial work to meet the demapeople, re cepti on services directly affecting t nds of new technology develo pmenthe Officee of party

22、 Committee The image of the region. At the same time strengthe ning the construction of library, improve t t he re ception conditions, more human-oriented, personal, cultural w w ork into the reception, a little more human needs, a little more human care more humane atmosphere, and constantly impr r

23、 ove the service, improve the quality of service. M eanw hile, t t o further pay special attention to the daily w ork of the other Office System. Confidential work responsibility sy sy stem for leading ca a dres to im m plement security as a leader, to improve the confidentiality of classified perso

24、nnel el , especi ci ally leading ca dres, , strengthening party and Government focus on vital l sectors of security management, to advance privacy manageme e nt standardization, modernization of se curity te te chniques a s a means of administration according to law and security- - - - - - -精选学习资料 -

25、 - - - - - - - - out city created, a nd care masses life, focus On the negative informati on a nd emergework, i n-dept ncy i nformation, rah investigation, more out bouti que master pie ce, makes we of rese pid e scalati on i n strict a ccorda nce with the procedures, firm, newspapeearch re sults mo

26、r r, ne wspae to into le d of decisi on vi sion, more to i n nati pers, never late, fail to re port, false claim aonal some ha s effect of newspaper Sha ng published, for a nd skimmi ng. Investe e 2. supervision and insist on, ar a ound advance work, and publicity cha ngde play due of role. Third, i

27、nformati nd pr otecti ng their i nterests to touch the tr uth, see k practical reon submitted to sults. Adhere to o be pragmati people -orieti c. Quick a nd timel nted, the most important thiy. T he ancients ng is to re said: for the time system; stateme re alize, safeguard a nd develop the ffnt bac

28、k for t he time bei ng, nothi ng. Therefore, the undamental intere sts of the overwhelming majority e submi ssion of information to do four, that is, find the problem faster, editorial writi of the people. We carry out inspe ction, so must go dee p among t he masses, go ng, se dee p into t nd nd rea

29、 t he realitie d faster appr e s, always oval and feedba c pay attention to thek to implement quickl y. To be tr peoples livel ihood, to grasp t heue and accurate. True mainly reflect the full pi publ ic sentiment, a nd e arnestly pi safeguard tcture he beof events, one is one , two, thi nefit, addr

30、essi ng the masses are mi s is the life of the information. Accura ost concerne d about a nd reflecy is primarily cting the strongely qualitative a nd qua st issues, efforts to a ntitative que stions, quantitative obje ctive of publi solve t he pr oblem of deci sions impl emented a ndi cQualitative

31、logi c. To be reliable a not implemented. One is to stick to nd useful. We submit inform o principl es. Right of im ation to nspecti on is o have access t o de one of the most important cisi on -making, to g t powers of the uide e and promote t Office, should t he work a nd solve not only dare to us

32、e, practica l problems. Mixed cum. but also with cauti on. So-calledared to use, i s to hold a number of important issues, bold supervision ov er supervision, track inspection, problems are not solved do not pass, the blame does not hold did not miss, dissatisfaction of the masses did not miss, the

33、real right of supervision authority, with the benefits. Call wit h ca uti on, is supervisi ng departments should strengthe n the consciousness of aut hhorized strictly according to pr ocedure, preventing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervis

34、ion Department of the Party Committee of supervi vi sion must be under city and County party Committee Secretary-General (Office). Second, we should focus on. Is the Governor, those related to the globalEvent, Governor the protracted diff icult, strong Governor during emergency urgent. Not having sp

35、ecial departments in charge of the General Governor, under the normal procedure can do good things not Governor, not a uthorized by County leaders, not the Governor. Third is to solvethe problem. The purpose of supervision, to resolve the problem. To a a dhere to and further impr pr ove the分簇算法，以及LE

36、ACH 和 HEED 等自组织成簇算法。除了传统的d 功率控制和层次型拓扑控制， 人们也提出了启发式的节点唤醒和休眠机制。该机制能够使节点在没有事件发生时设置通信模块为睡眠状态，而在有事件发生时及时自动醒来并唤醒邻居节点，形成数据转发的拓扑结构。这种机制重点在于解决节点在睡眠状态和活动状态之间的转换问题， 不能够独立作为一种拓扑结构控制机制，因此需要与其他拓扑控制算法结合使用。2网络协议由于传感器节点的计算能力、存储能力、通信能量以及携带的能量都十分有限， 每个节点只能获取局部网络的拓扑信息，其上运行的网络协议也不能太复杂。同时，传感器拓扑结构动态变化，网络资源也在不断变化， 这些都对网络协议

37、提出了更高的要求。传感器网络协议负责使各个独立的节点形成一个多跳的数据传输网络，目前研究的重点是网络层协议和数据链路层协议。网络层的路由协议决定监测信息的传输路径； 数据链路层的介质访问控制用来构建底层的基础结 构，控制传感器节点的通信过程和工作模式。在无线传感器网络中， 路由协议不仅关心单个节点的能量消耗，更关心整个网络能量的均衡消耗，这样才能延长整个网络的生存期。同时，无线传感器网络是以数据为中心的，这在路由协议中表现得最为突出，每个节点没有必要采用全网统一的编址，选择路径可以不用根据节点的编址， 更多的是根据感兴趣的数据建立数据源到汇聚节点之间的转发路径。 目前提出了多种类型的传感器网络

38、路由协议，如多eelings survey, by looking up public sentiments to find pr obl ems. Problems will increase its special supervision, set up accounts, hol d on to it. We shoul d conscientiously implement the leading contracting matters, secured, ha d an answer to everything, then settles rate of 100%. Have an

39、impact on some of the outstandi ng issues, supervision departments and information components together, play the supervisory role of the news media to promote probl em solving. Investee 3. insist on a daily run, around the practice of truth catching efficiency, focus specification. To give full play

40、 to the party Office around connecting, coordinating internal and external features, contact, rally at all levels, to motivate every aspe ct, adhere to the truth, strengt hening standardized management to achieve coherent, efficient and effective functioning of the daily work of the Party Committee.

41、 Is processing messages should strive to streamline, standardize and quality. Streamlining is to control the number of名师归纳总结 messages, compress messages, reducing procedures, improve message handling efficiency. Specifications, is to strictly enforce the ban issued by the Communist party authorities

42、 in document handling regulations and pr ovincial and municipal regulations, conscientiously strengthen and improve communications management to ensure that party documents orderly. High qualit y, is to improve the quality of message processing, it is necessary to accurately implementing the intenti

43、on of the Party Committee, clearance, good communications, poli cy pr ogram closed, ensuring that there is no error. Second meeting work re scheduled to ensure thorough, safe and efficient. Any arrangements for the meetings a nd events, carefully arranged, item-by -item interface implemented, sure.

44、o vigorously streamline meetings, a ctivities, number of pressure reduction, scale to ensure that leadership emerged from the General Conference and entertainment services, focus on big thi ngs, matters. Third, re cepti on services 第 2 页，共 7 页should lay enforcemestress on huma nt, ensure the a ne, personal, cult ural and human. Recepti safety of the party and State secrets. Confideon and work directly with ntial work to meet the dema people, re cepti on services directly affecting t nds of new technology develo pmenthe Office of