CN102802231A - Efficient energy aware routing method applicable to sensor network electromagnetic spectrum monitoring system - Google Patents
Efficient energy aware routing method applicable to sensor network electromagnetic spectrum monitoring system Download PDFInfo
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- CN102802231A CN102802231A CN2012102865257A CN201210286525A CN102802231A CN 102802231 A CN102802231 A CN 102802231A CN 2012102865257 A CN2012102865257 A CN 2012102865257A CN 201210286525 A CN201210286525 A CN 201210286525A CN 102802231 A CN102802231 A CN 102802231A
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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
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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
Abstract
The invention belongs to the technical field of wireless sensor network (WSN) protocols, and particularly relates to an efficient energy aware routing method applicable to a sensor network electromagnetic spectrum monitoring system. The method includes the following steps: after the meshing of a monitored area and the allocation of sensor network electromagnetic signal sensing nodes, sink nodes and information center nodes, the sink nodes broadcast cluster head announcement messages, and the sensing nodes select cluster nodes according to the intensity of received signals and join clusters, so as to complete the creation of the clusters; when searching for the routing of a destination node, a source node selects the best routing according to the principles of the minimum hops of a link and the remaining energy of nodes in the link; and the sensing nodes report the monitored data to the information center nodes through the best routing. The efficient energy aware routing method provided by the invention has the advantages that the blindness of random clustering is reduced through the meshing and the creation of the clusters; and the selection of the best routing not only guarantees the communication quality but also prolongs the service life of the sensor network electromagnetic spectrum monitoring system.
Description
Technical field
The invention belongs to the wireless sensor network protocols technical field, be specifically related to a kind of high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system.
Background technology
Wireless sensor network (WSN) is the emerging forward position research hot fields that current height that receive much concern in the world, multidisciplinary intersects.Sensor network technique has very wide application prospect, in many fields such as military and national defense, industrial or agricultural control, city management, biologic medical, environmental monitoring, rescue and relief work, antiaircraft anti-terrorism, miniature regional Long-distance Control important scientific research value and practical value is arranged all.
The electromagnetic spectrum space is one of complex spatial, and natural various physical phenomenons all can produce irregular interfering frequency, and the kind of disturbing, frequency range, and the duration does not all have rule.Along with development of science and technology, under all trades and professions and military scene, it is increasing that wireless radio-frequency is used, and it is crowded and complicated more that the space electromagnetic signal becomes, and this has brought problems for monitoring, management, distribution and the use of electromagnetic signal in the zone.
Wireless sensor network is because price is comparatively cheap, volume is urinated in laying; Characteristics such as sensor monitors node frequency range can the distance signal source nearer, the monitoring electromagnetic signal is more extensive are being brought into play increasing effect in the electromagnetic signal observation process of space.
When utilizing wireless sensor network that the space electromagnetic signal is carried out distributed monitoring, the network node kind is more, has comprised the sensing node of a plurality of frequency ranges, the node of a plurality of frequency ranges phase mutual interference when the transmission data simultaneously, and network architecture is very complicated; Sensing node is monitored very consumed energy to the space electromagnetic signal, but sensing node is owing to receive the restriction of cost and bulk factor, and the energy content of battery is very limited and be difficult to replenished.Existing sensor networking agreement is considered directly to have influenced the life span of wireless sensor network inadequately to the phase mutual interference and the node energy problem of sending data between node.
Summary of the invention
The objective of the invention is to design a kind of high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system; Realize the accessible transmission of a plurality of frequency range sensing node Monitoring Data; Overcome the prior art shortcoming simultaneously; The energy consumption of node in the whole network of balance, the life span that prolongs network.
A kind of high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system is characterized in that may further comprise the steps:
(A) deployment phase of sensor network is divided the monitored area according to grid, and at the sensing node of each grid deployed aggregation node and a plurality of monitoring different frequency ranges;
(B) all aggregation nodes are broadcasted bunch first notification packet respectively in the network in network; Each sensing node compares a plurality of bunches of first notification packets the receiving intensity according to received signal, selects the corresponding aggregation node of peak signal as the first node of its bunch and add this bunch;
(C) at the route establishment stage, when source node searched out the route of destination node, source node was selected best route according to the dump energy synthetic determination of node in the minimum hop count of link and the link after initiating route requests and receiving many routing reply messages;
(D) the transmission data stabilization sub stage, comprised data bunch in the transmission and bunch between transmit two parts.Bunch in transmit stage, sensing node arrives bunch first node according to the TDMA timetable of bunch first node issue gap transmitting supervisory data when own; Bunch between transmit stage, be reported to information centre's node again after the data of the same monitoring objective that bunch first node at first sends a plurality of sensing nodes tentatively merge.
Further, said step (B) specifically comprises the steps:
(1) converge node broadcasts bunch first notification packet in the network, sensing node or other aggregation nodes are not transmitted after receiving the literary composition of bunch reporting for the first time;
(2) sensing node compares the intensity of receiving a plurality of bunches of civilian signals of reporting for the first time, selects the corresponding aggregation node of peak signal as the first node of its bunch and this bunch of adding;
(3) bunch first node is created the TDMA timetable and is notified each node when to begin to transmit data according to the quantity of bunch interior nodes.
Further; Select the concrete grammar of best route to be in the said step (C): source node is when being established to the best route of destination node; At first initiate route requests, in the set time, receive many route replies, source node is to the multi-stress R of the multi-hop route received
kCalculate selected R by following formula
kPeaked link is best route;
R
k＝D*E
k*RSSI
k/hop
k(k＝1，2...n)
Wherein, R
kThen be the comprehensive reference factor of link, D is a network parameter, E
kBe the dump energy of link, RSSI
kBe the reception signal strength signal intensity of link, hop
kBe the minimum hop count of source node in the link to destination node.
Further; In the said step (D) bunch in transfer of data be: sensing node arrives bunch first node according to the TDMA timetable of bunch first node issue gap transmitting supervisory data when own; If this member node has more data to transmit; It can be at other member's time gap monitor channel at first so, and the duration of monitor channel is the time period of a weak point at random.If there is signal in the channel, this node can get into resting state immediately, up to this time gap finish, node is waken up and is continued monitor channel.Do not have signal in the channel if detect, transfer of data was carried out in gap when then this node will take this;
Further; In the said step (D) bunch between transfer of data be: bunch first node is receiving the data that sensing node sends; After the data of the same monitoring objective that a plurality of sensing nodes are reported tentatively merge; Judge at first whether oneself has to the routing iinformation of information centre's node,, be initiated to the route requests of information centre if route does not exist; If route exists, transfer of data between then carrying out bunch through multi-hop.
The beneficial effect that the present invention is compared with prior art obtained is: the present invention is when disposing sensor network electromagnetic spectrum monitoring equipment; Carried out grid divide with bunch structure; Reduce the blindness of cluster at random, strengthened the network performance of sensor network electromagnetic spectrum monitoring system; Minimum hop count and link dump energy comprehensive strategic when selecting best route, have been adopted; Can more uniformly the energy consumption of whole wireless sensor network be shared each node, when ensureing communication quality, prolong the useful life of sensor network electromagnetic spectrum monitoring system.
Description of drawings
Fig. 1 is the flow chart of setting up of high efficiency energy sensing protocol bunch;
Fig. 2 be bunch in data transmission flow figure;
Fig. 3 be bunch between data transmission flow figure.
Embodiment
Below in conjunction with accompanying drawing and instance the present invention is described further:
A kind of high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system may further comprise the steps:
(A) deployment phase of sensor network is divided the monitored area according to grid, and at the sensing node of each grid deployed aggregation node and a plurality of frequency ranges.
(B) all aggregation nodes are broadcasted a bunch first notification packet respectively in the network; Each sensing node compares according to the intensity that receives signal a plurality of bunches of first notification packets that receive, and selects the corresponding aggregation node of peak signal as the first node of its bunch and this bunch of adding.
Be specially, converge node broadcasts bunch first notification packet in (1) network, sensing node or other aggregation nodes are not transmitted after receiving the literary composition of bunch reporting for the first time;
(2) sensing node compares the intensity of receiving a plurality of bunches of civilian signals of reporting for the first time, selects the corresponding aggregation node of peak signal as the first node of its bunch and this bunch of adding;
(3) bunch first node is created the TDMA timetable and is notified each node when to begin to transmit data according to the quantity of bunch interior nodes.
As shown in Figure 1, after network was accomplished initialization, information aggregation node neighbours' sensing node towards periphery periodically sent a bunch first notification packet; Receive the power of the sensing node contrast signal of bunch first notification packet; Select the strongest aggregation node of signal to send the ACK message, this aggregation node is a bunch member node oneself to be a bunch head with the sensing node of replying the ACK message; And send tdma slot to bunch member node and tabulate, accomplish the structure of protocol family.
(C) at the route establishment stage, when source node searched out the route of destination node, source node was selected best route according to the dump energy synthetic determination of node in the minimum hop count of link and the link after initiating route requests and receiving many routing reply messages.
Suppose E
kBe the dump energy (the minimum energy value of all nodes in this link) of certain link, RSSI
kBe the reception signal strength signal intensity (the lowest signal receiving intensity of all nodes in this link, expression link-quality) of certain link, hop
kBe the minimum hop count of source node in the link to destination node, D is a network parameter, can adjust R according to the actual conditions of network
kIt then is the comprehensive reference factor of certain link.
R
k＝D*E
k*RSSI
k/hop
k(k＝1，2...n)
Source node is at first initiated route requests when being established to the best route of destination node, in the set time, receive many route replies, and source node is to the multi-stress R of the multi-hop route received
kCalculate selected R
kPeaked link is best route.
(D) the transmission data stabilization sub stage, comprised data bunch in the transmission and bunch between transmit two parts.Bunch in transmit stage, sensing node arrives bunch first node according to the TDMA timetable of bunch first node issue gap transmitting supervisory data when own; Bunch between transmit stage, be reported to information centre's node again after the data of the same monitoring objective that bunch first node at first sends a plurality of sensing nodes tentatively merge.
The transfer process figure of data in being illustrated in figure 2 as bunch, sensing node give the correct time on after accomplishing data monitoring, needing, and the contrast bunch tdma slot that first node sends tabulation is if in oneself time slot then to a bunch first node transmission data; If sensing node is found not in oneself time slot or data are not sent and finished, channel is monitored, then continue to monitor when channel idle through this channel transmission data if channel is occupied.
Member node reported the Monitoring Data of same task in the transfer process figure of data between being illustrated in figure 3 as bunch, bunch first node waited for bunch, then data was tentatively merged if the data of all bunches member node send to finish, otherwise continued to wait for.Wait in reception data and the fusion process at a bunch first node; Bunch first node judges oneself whether to have the recent route information that arrives information centre's node; If this information then initiate route requests and establish best route not waits to accomplish the multi-hop transmission of the laggard line data of preliminary fusion of data.
Claims (5)
1. high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system is characterized in that may further comprise the steps:
(A) deployment phase of sensor network is divided the monitored area according to grid, and at the sensing node of each grid deployed aggregation node and a plurality of monitoring different frequency ranges;
(B) all aggregation nodes are broadcasted a bunch first notification packet respectively in the network; Each sensing node compares a plurality of bunches of first notification packets the receiving intensity according to received signal, selects the corresponding aggregation node of peak signal as the first node of its bunch and add this bunch;
(C) at the route establishment stage, when source node searched out the route of destination node, source node was selected best route according to the dump energy synthetic determination of node in the minimum hop count of link and the link after initiating route requests and receiving many routing reply messages;
(D) the transmission data stabilization sub stage, comprised data bunch in the transmission and bunch between transmit two parts; Bunch in transmit stage, sensing node arrives bunch first node according to the TDMA timetable of bunch first node issue gap transmitting supervisory data when own; Bunch between transmit stage, be reported to information centre's node again after the data of the same monitoring objective that bunch first node at first sends a plurality of sensing nodes tentatively merge.
2. the high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system according to claim 1, it is characterized in that: said step (B) specifically comprises the steps:
(1) converge node broadcasts bunch first notification packet in the network, sensing node or other aggregation nodes are not transmitted after receiving the literary composition of bunch reporting for the first time;
(2) sensing node compares the intensity of receiving a plurality of bunches of civilian signals of reporting for the first time, selects the corresponding aggregation node of peak signal as the first node of its bunch and this bunch of adding;
(3) bunch first node is created the TDMA timetable and is notified each node when to begin to transmit data according to the quantity of bunch interior nodes.
3. the high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system according to claim 1; It is characterized in that: select the concrete grammar of best route to be in the said step (C): source node is when being established to the best route of destination node; At first initiate route requests; In the set time, receive many route replies, source node is to the multi-stress R of the multi-hop route received
kCalculate selected R by following formula
kPeaked link is best route;
R
k＝D*E
k*RSSI
k/hoP
k(k＝1，2...n)
Wherein, R
kThen be the comprehensive reference factor of link, D is a network parameter, E
kBe the dump energy of link, RSSI
kBe the reception signal strength signal intensity of link, hop
kBe the minimum hop count of source node in the link to destination node.
4. biography according to claim 1 is applicable to the high efficiency energy perception method for routing of sensor network electromagnetic spectrum monitoring system; It is characterized in that: in the said step (D) bunch in transfer of data be: sensing node arrives bunch first node according to the TDMA timetable of bunch first node issue gap transmitting supervisory data when own; If this member node has more data to transmit; It can be at other member's time gap monitor channel at first so, and the duration of monitor channel is the time period of a weak point at random.If there is signal in the channel, this node can get into resting state immediately, up to this time gap finish, node is waken up and is continued monitor channel.Do not have signal in the channel if detect, transfer of data was carried out in gap when then this node will take this.
5. the high efficiency energy perception method for routing that is applicable to sensor network electromagnetic spectrum monitoring system according to claim 1; It is characterized in that: in the said step (D) bunch between transfer of data be: bunch first node is receiving the data that sensing node sends; After the data of the same monitoring objective that a plurality of sensing nodes are reported tentatively merge; Judge at first whether oneself has to the routing iinformation of information centre's node,, be initiated to the route requests of information centre if route does not exist; If route exists, transfer of data between then carrying out bunch through multi-hop.
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| CN103338495A (en) * | 2013-07-04 | 2013-10-02 | 南京信息工程大学 | Two-way energy balance wireless sensing network route method based on LEPS |
| CN105764111A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Wireless-sensing-network autonomous routing method |
| WO2017049440A1 (en) * | 2015-09-21 | 2017-03-30 | 华为技术有限公司 | Spectrum resource allocation method and apparatus |
| CN107171906A (en) * | 2017-05-19 | 2017-09-15 | 上海为然环保科技有限公司 | A kind of intelligent domestic system of mobile terminal control |
| CN107809781A (en) * | 2017-11-02 | 2018-03-16 | 中国科学院声学研究所 | A kind of loop free route selection method of load balancing |
| CN112616121A (en) * | 2020-12-25 | 2021-04-06 | 国网北京市电力公司 | Method and device for transmitting monitoring data of outlet pressure plate |
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Application publication date: 20121128 |