2022年无线传感器网络的关键技术 .pdf

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1、out city created, and care masses life, focus work, in-depth investigation, more out bouti que masterpie ce, makes we of research re sults more to into led of decision vi sion, more to in national some has effect of newspaper Shang published, for advance work, and publicity cha ngde play due of role

2、. Third, information submitted to be pragmatic. Quick and timely. T he ancients said: for the time system; statement back for the time being, nothi ng. Therefore, the submission of information to do four, that is, find the problem faster, editorial writing, send and read faster approval and feedback

3、 to im plement quickly. To be true and accurate. True mainly reflect the full picture of events, one is one, two, this is the life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative objective of publicQualitative logic. To be reliable and useful. We submit

4、 information to have access to decisi on -making, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency i nformation, rapid e scalation i n strict accordance with the procedures, firm, newspape r, newspapers, never late, fail to report, fals

5、e claim and skimming. Investee 2. supervision and insist on, around and protecti ng their interests to touch the truth, see k practical results. Adhere to people -oriented, the most important thing is to realize, safeguard and develop the fundamental interests of the overwhelming majority of the peo

6、ple. We carry out inspection, so must go deep among the masses, go dee p into the realities, always pay attention to the peoples livelihood, to grasp the public sentiment, and earnestly safeguard the benefit, addressing the masses are most concerned about and reflecting the strongest issues, efforts

7、 to solve the pr oblem of decisions implemented and not implemented. One is to stick to principles. Right of inspection is one of the most important powers of the Office, should not only dare to use, but also with cauti on. So-called dared to use, i s to hold a number of important issues, bold super

8、vision over 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 right of supervision authority, with the benefits. Call with cauti on, is supervisi ng departments should strengthe n the conscio

9、usness of authorized strictly according to pr ocedure, preventing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervision Department of the Party Committee of supervision must be under city and County party Committee Secretary-General (Office). Second, we

10、should focus on. Is the Governor, those related to the globalEvent, Governor the protracted difficult, strong Governor during emergency urgent. Not having special departments in charge of the General Governor, under the normal procedure can do good things not Governor, not a uthorized by County lead

11、ers, not the Governor. Third is to solvethe problem. The purpose of supervision, to resolve the problem. To adhere to and further improve theeelings 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

12、 conscientiously implement the leading contracting matters, secured, had a n answer to everything, then settles rate of 100%. Have an 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 e

13、m solving. Investee 3. insist on a daily run, around the practi ce of truth catching efficiency, focus specification. To give full play 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, st

14、rengthening standardized management to achieve coherent, efficient and effective functioning of the daily work of the Party Committee. Is processing messages should strive to streamline, standardize and quality. Streamlining is to control the number ofmessages, compress messages, reducing procedures

15、, improve message handling efficiency. Specifications, is to strictly enforce the ban issued by the Communist party authorities in document handling regulations and pr ovincial and municipal regulations, conscientiously strengthen and improve communications management to ensure that party documents

16、orderly. High quality, is to improve the quality of message processing, it is necessary to accurately implementing the intention of the Party Committee, clearance, good communications, poli cy pr ogram closed, ensuring that there is no error. Second meeting scheduled to ensure thorough, safe and eff

17、icient. Any arrangements for the meetings a nd events, carefully arranged, item-by -item interface implemented, sure. o vigorously streamline meetings, activities, number of pressure reduction, scale to ensure that leadership emerged from the General Conference and entertainment services, focus on b

18、ig things, matters. Third, re ception services should lay stress on humane, personal, cultural and human. Reception and work directly with people, recepti on services directly affecting the Office of party Committee The image of the region. At the same time strengthening the construction of library,

19、 improve the re ception conditions, more human-oriented, personal, cultural work into the reception, a little more human needs, a little more human care more humane atmosphere, and constantly improve the service, improve the quality of service. M eanw hile, to further pay special attention to the da

20、ily w ork of the other Office System. Confidential work responsibility system for leading cadres to implement security as a leader, to improve the confidentiality of classified personnel, especially leading ca dres, strengthening party and Government focus on vital sectors of security management, to

21、 advance privacy management standardization, modernization of se curity techniques a s a means of administration according to law and securityenforcement, ensure the safety of the party and State secrets. Confidential work to meet the demands of new technology development传感器网络的关键技术无线传感器网络作为当今信息领域新的研

22、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转发的网络拓扑结构。拓扑控制可以分为节点

23、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，进入休眠状态以节省能量 ；目前提出了 TopDisc成簇算法，改进的GAF 虚拟地理网格精选学习资料 - - - - - - - -

24、- 名师归纳总结 - - - - - - -第 1 页，共 7 页out city created, and care masses life, focus work, in-depth investigation, more out bouti que masterpie ce, makes we of research re sults more to into led of decision vi sion, more to in national some has effect of newspaper Shang published, for advance work, and pu

25、blicity cha ngde play due of role. Third, information submitted to be pragmatic. Quick and timely. T he ancients said: for the time system; statement back for the time being, nothing. Therefore, the submission of information to do four, that is, find the problem faster, editorial writing, send nd re

26、ad faster approval and feedback to implement quickly. To be true and accurate. True mainly reflect the full picture of events, one is one, two, this is the life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative objective of publicQualitative logic. To be

27、reliable and useful. We submit information to have access to decisi on -making, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency i nformation, rapid e scalation i n strict accorda nce with the procedures, firm, newspaper, newspapers, ne

28、ver late, fail to report, false claim and skimming. Investee 2. supervision and insist on, around and protecti ng their interests to touch the truth, see k practical results. Adhere to people -oriented, the most important thing is to realize, safeguard and develop the fundamental interests of the ov

29、erwhelming majority of the people. We carry out inspection, so must go deep among the masses, go dee p into the realities, always pay attention to the peoples livelihood, to grasp the public sentiment, and earnestly safeguard the benefit, addressing the masses are most concerned about and reflecting

30、 the strongest issues, efforts to solve the pr oblem of decisions implemented and not implemented. One is to stick to principles. Right of inspecti on is one of the most important powers of the Office, should not only dare to use, but also with cauti on. So-called dared to use, i s to hold a number

31、of important issues, bold supervision over 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 right of supervision authority, with the benefits. Call with cauti on, is supervisi ng departments

32、 should strengthe n the consciousness of authorized strictly according to pr ocedure, preventing the supervision and excessive to prevent adding burden to grass-roots. To this end, the supervision Department of the Party Committee of supervision must be under city and County party Committee Secretar

33、y-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 departments in charge of the General Governor, under the normal procedure can do good things not Governor,

34、 not a uthorized by County leaders, not the Governor. Third is to solvethe problem. The purpose of supervision, to resolve the problem. To adhere to and further improve theeelings survey, by looking up public sentiments to find pr obl ems. Problems will increase its special supervision, set up accou

35、nts, 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 impact on some of the outstandi ng issues, supervision departments and information components together, play the supervisory role of th

36、e 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 to the party Office around connecting, coordinating internal and external features, contact, rally at all levels, to motivate every as

37、pe ct, adhere to the truth, strengt hening standardized management to achieve coherent, efficient and effective functioning of the daily work of the Party Committee. Is processing messages should strive to streamline, standardize and quality. Streamlining is to control the number ofmessages, compres

38、s messages, reducing procedures, improve message handling efficiency. Specifications, is to strictly enforce the ban issued by the Communist party authorities in document handling regulations and pr ovincial and municipal regulations, conscientiously strengthen and improve communications management

39、to ensure that party documents orderly. High quality, is to improve the quality of message processing, it is necessary to accurately implementing the intention of the Party Committee, clearance, good communications, poli cy pr ogram closed, ensuring that there is no error. Second meeting scheduled t

40、o ensure thorough, safe and efficient. Any arrangements for the meetings a nd events, carefully arranged, item-by -item interface implemented, sure. o vigorously streamline meetings, activities, number of pressure reduction, scale to ensure that leadership emerged from the General Conference and ent

41、ertainment services, focus on big things, matters. Third, recepti on services should lay stress on humane, personal, cultural and human. Reception and work directly with people, recepti on services directly affecting the Office of party Committee The image of the region. At the same time strengtheni

42、ng the construction of library, improve the re ception conditions, more human-ori ented, personal, cultural work into the reception, a little more human needs, a little more human care more humane atmosphere, and constantly improve the service, improve the quality of service. M eanw hile, to further

43、 pay special attention to the daily w ork of the other Office System. Confidential work responsibility system for leading cadres to implement security as a leader, to improve the confidentiality of classified personnel, especially leading ca dres, strengthening party and Government focus on vital se

44、ctors of security management, to advance privacy management standardization, modernization of security techniques a s a means of adm inistration according to law and securityenforcement, ensure the safety of the party and State secrets. Confidential work to meet the demands of new technology develop

45、ment分簇算法，以及LEACH 和 HEED 等自组织成簇算法。除了传统的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

46、， 这些都对网络协议提出了更高的要求。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

47、种类型的传感器网络路由协议，如多精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 7 页out city created, and care masses life, focus work, in-depth investigation, more out bouti que masterpie ce, makes we of research re sults more to into led of decision vi sion, more to in national some has effect of newspaper Sh

48、ang published, for advance work, and publicity cha ngde play due of role. Third, information submitted to be pragmatic. Quick and timely. T he ancients said: for the time system; statement back for the time being, nothi ng. Therefore, the submission of information to do four, that is, find the probl

49、em faster, editorial writing, send and read faster approval and feedback to implement quickly. To be true and accurate. True mainly reflect the full picture of events, one is one, two, this is the life of the information. Accuracy is primarily qualitative and quantitative questions, quantitative obj

50、ective of publicQualitative logic. To be reliable and useful. We submit information to have access to decisi on-making, to guide and promote the work and solve practical problems. Mixed cum. On the negative information and emergency i nformation, rapid e scalation i n strict accordance with the proc