CN103269523A - Wireless sensor network with rectangular topological structure - Google Patents
Wireless sensor network with rectangular topological structure Download PDFInfo
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- CN103269523A CN103269523A CN2013101424957A CN201310142495A CN103269523A CN 103269523 A CN103269523 A CN 103269523A CN 2013101424957 A CN2013101424957 A CN 2013101424957A CN 201310142495 A CN201310142495 A CN 201310142495A CN 103269523 A CN103269523 A CN 103269523A
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Abstract
The invention discloses a wireless sensor network with a rectangular topological structure, and belongs to the technical field of sensor signal wireless transmission. An existing wireless sensor network with a net-shaped topological structure is complex in structure, higher in achieving expense, not easy to manage and maintain and not easy to expand. The wireless sensor network with the rectangular topological structure is characterized in that a plurality of information acquisition terminals automatically form a net, each information acquisition terminal of a previous level of data transmission levels has two transmission channels which are connected with two information acquisition terminals in a next level respectively in a wireless communication mode, and the last level of the data transmission levels is provided with two to three information acquisition terminals which are connected with a data receiving terminal in a wireless communication mode. The wireless sensor network with the rectangular topological structure is of a bridgeless topological structure, wireless network space is set up due to the fact that the information acquisition terminals can be randomly and transversely expanded and can also be longitudinally expanded through a wireless network layer, the number of the information acquisition terminals and a covering surface of the wireless network are increased, data transmission capacity of the wireless network is improved at the same time, and accuracy and reliability of data transmission are improved.
Description
Technical field
The present invention relates to a kind of wireless sensor network with rectangle topology structure, belong to the sensor signal radio transmission technical field.
Background technology
Wireless senser has the information detection ability, and data processing, storage, transmittability, parts such as information acquisition unit, data processing unit, data transmission unit, power supply that wireless sensor network is integrated, can play a significant role in fields such as Internet of Things with detection, supervision, the control of communication realization to target.The network topology structure difference that wireless sensor network adopts, its data transmission capabilities are also different.The prior wireless network topological structure has following three kinds.
Star topology is the most frequently used a kind of, as shown in Figure 1, on each node of this structure, several information gathering terminals (port) that are positioned on the fringe node are connected in the mode of radio communication with a data receiver (terminal) that is positioned on the Centroid.These information gathering ends are respectively to data receiver transmission data.From the wireless network angle, the shortcoming of this scheme is high especially to the routing device security requirement on the Centroid, the route end work load that is on the Centroid is big, if fault, then generation information is blocked up, and causes the paralysis of whole wireless network, can't transmit data, therefore, adopt the wireless sensor network of star topology to be not suitable as data transmission network on a large scale.
The tree topology structure is a kind of a kind of wireless network topology structure that proposes according to the pattern of " terminal-route-receiving terminal ", as shown in Figure 2, after being positioned at several information gathering terminal (port) groupings on the fringe node, information gathering terminal in every group is connected with the mode of the every group of route end (router) separately that is positioned at crotch node place with radio communication, and every group of route end separately is connected in the mode of radio communication with a data receiver (terminal) that is positioned on the Centroid again.This scheme has enlarged coverage or the distribution density of information gathering terminal, but, owing to can not break away from the dependence to the fail safe of route end, normally whether being related to this crotch and can effectively transmitting data of certain route end operating state, and, if described data receiver is also as one-level route end, then be equivalent to a route end that is positioned at trunk node place, so, if it breaks down, a bigger wireless network is shut down, and the wireless sensor network investment with tree topology structure is big, risk is high.
In fully connected topology, after being positioned at several information gathering terminal (port) groupings on the fringe node, information gathering terminal in every group is connected with the mode of the every group of route end (router) separately that is positioned at the via node place with radio communication, every group of route end separately not only is connected in the mode of radio communication with a data receiver (terminal) that is positioned on the Centroid, and also connect in the mode of radio communication each other, as shown in Figure 3, from the wireless network angle, just each routing node links to each other with other two nodes at least, therefore, fully connected topology has higher reliability.But, adopt the wireless sensor network of fully connected topology owing to require all route ends to become net, therefore, complex structure, the expense that implements is higher, is difficult for administering and maintaining; Expand as need, the route end that increases need both have been deposited the route end with other equally and become net, therefore was difficult for expanding.
Summary of the invention
In order to guarantee accurately, under the prerequisite of reliable transmitting data, simplifying the structure of wireless sensor network, and make it to be easy to expand that we have invented a kind of wireless sensor network with rectangle topology structure.
The present invention's the wireless sensor network with rectangle topology structure has some information gathering terminals and a data receiving terminal, it is characterized in that, several information gathering terminals become net voluntarily, as shown in Figure 4, each information gathering terminal in the previous stage of transfer of data level has two transmission channels, and be connected with the mode of two information gathering terminals of back in the one-level with radio communication respectively, the afterbody of transfer of data level has 2～3 information gathering terminals to be connected with the mode of data receiver with radio communication.
Its technique effect of the present invention is, constructed wireless network has the rectangle topology structure, be labeled as port01, port02, port04, four information gathering terminals of port05 constitute a rectangle topology structure, as shown in Figure 4, be labeled as port02, port03, three information gathering terminals of port05 constitute a rectangle topology structure with the data receiver that is labeled as terminal, as shown in Figure 5, be labeled as port04, port05, three information gathering terminals of port07 constitute a rectangle topology structure with the data receiver that is labeled as terminal, as shown in Figure 6.
The present invention's the wireless sensor network system with rectangle topology structure is according to " terminal-receiving terminal " mode construction, it is a kind of no bridge topological structure, several information gathering terminals become net voluntarily, transfer data to data receiver, this makes the present invention's the wireless sensor network with rectangle topology structure than the wireless network with fully connected topology of the prior art, and it is much simple that structure is wanted.As seen, the information gathering terminal that is arranged in each node of wireless network both had been used as the signals collecting end, was used as information link route end again, and three grades of data transmission networks just can construct small-sized signal transmission rectangle topology structure, shown in Fig. 4～6.Even one or more working sensor in the wireless network is unusual, can not influence other transducers to the collection of information and the transmission of data yet.
Furthermore, in the present invention's the wireless sensor network with rectangle topology structure, each information gathering terminal in the previous stage of transfer of data level has two transmission channels, and be connected in the mode of radio communication with two information gathering terminals that the back one-level just is positioned on the transmission logic adjacent node respectively, port01 in the information gathering terminal in full reportedly failing 1 grade has two transmission channels, respectively with 2 grades of transfer of data on the information gathering terminal in port02, port04 connects in the mode of radio communication, as shown in Figure 4, port02 in the information gathering terminal on 2 grades of the transfer of data has two transmission channels for another example, respectively with 3 grades of transfer of data on the information gathering terminal in port03, port05 connects in the mode of radio communication, and in full reportedly the port04 in the information gathering terminal on defeated 2 grades has two transmission channels, respectively with 3 grades of transfer of data on the information gathering terminal in port05, port07 connects in the mode of radio communication; The afterbody of transfer of data level has 2～3 information gathering terminals to be connected with the mode of data receiver with radio communication, as shown in Figure 4, in full reportedly port03, port05, the port07 in the information gathering terminal on defeated 3 grades is connected in the mode of radio communication with data receiver terminal.Therefore, in the present invention's the wireless sensor network with rectangle topology structure, at first do not exist " bridge " operation irregularity to cause the phenomenon that information is blocked up, secondly previous stage can be guaranteed the accurate, reliable of transfer of data with two transmission channels of back one-level.
Because the information gathering terminal becomes net each other voluntarily, therefore, the present invention's the wireless sensor network with rectangle topology structure very easily expands, for example, afterbody in transfer of data continues to add new information gathering terminal as described after 3 grades, as add 4 grades of port06, port08 in the information gathering terminal, as shown in Figure 7.Certainly, this expansion can be carried out in any one-level information gathering terminal certainly.
Have again, the present invention's the wireless sensor network with rectangle topology structure can adopt the fixed point networking technology, namely determine the address of the information gathering terminal on each node, as physical address or the network address, thereby can under the prerequisite that ensures information security, avoid redundant data transmissions to greatest extent, that is to say, the packet of an information gathering terminal formation carries this address of node, information gathering terminal place information, it is identical to have become two addresses after this packet transmits by different transmission channels, the packet that data are identical, when if they are sent to certain information gathering terminal of certain back one-level, it is identical that this information gathering terminal can be deleted these two addresses, in the identical packet of data one, one-level transmits another backward.For example, after being positioned at the information gathering terminal port01 Information Monitoring and processing of 1 grade of transfer of data, the packet that sends has this address of node, information gathering terminal place label, when be sent to two the information gathering terminal port02 and port04 that is positioned at 2 grades of transfer of data along two transmission channels after, the capital is sent to the information gathering terminal port05 that is positioned at 3 grades of transfer of data, so, just can compare superfluous here, delete the packet that address label is identical, with the one-level continuation transmission backward of another packet, so that whole wireless network is farthest accomplished " irredundant " transmission data, optimize the data transmission capabilities of wireless sensor network.Accordingly, a subsidiary technique effect of the present invention is that this wireless network has the unusual self-test capability of node, that is to say, when certain information gathering terminal of certain back one-level received only in two packets that the address is identical, data are identical one, this information gathering terminal can judge that then certain information gathering terminal works of certain previous stage is unusual.
Description of drawings
Fig. 1 is prior wireless network star topology schematic diagram.Fig. 2 is prior wireless network tree topology structural representation.Fig. 3 is prior wireless network fully connected topology schematic diagram.Fig. 4～6th, the present invention's the wireless sensor network schematic diagram with rectangle topology structure, shown in network have three transfer of data levels, Fig. 5, wireless network shown in Figure 6 are two typification situations of wireless network shown in Figure 4.Fig. 7 is the wireless network schematic diagram that the present invention's the wireless sensor network with rectangle topology structure has four transfer of data levels.Fig. 8 is the wireless network schematic diagram that the present invention's the wireless sensor network with rectangle topology structure has two-layer five transfer of data levels, and this figure is simultaneously as Figure of abstract.
Embodiment
The present invention's the wireless sensor network with rectangle topology structure has some information gathering terminals and a data receiving terminal.Several information gathering terminals become net voluntarily, as shown in Figure 4, each information gathering terminal in the previous stage of transfer of data has two transmission channels, and be connected with the mode of two information gathering terminals of back in the one-level with radio communication respectively, the afterbody of transfer of data has 2～3 information gathering terminals to be connected with the mode of data receiver with radio communication.The transfer of data level is more than or equal to 3 grades, shown in Fig. 4～7.The wireless network series of strata constitute behind the one-tenth net by being positioned at more than or equal to horizontal the expansion voluntarily of described several information gathering terminals on 3 grades the transfer of data level, as shown in Figure 7, the wireless network space is vertically to be expanded successively by two the above wireless network layers to become net to constitute voluntarily, the wireless network number of plies in the wireless network space is more than or equal to 2, there is 1 described data receiver in the wireless network space, as shown in Figure 8.For example, the 0th layer of wireless network series of strata laterally expand and constitute after becoming net voluntarily by being positioned at information gathering terminal that on 5 grades the transfer of data level 9 are labeled as port01～port09, as shown in Figure 8, the 1st layer of wireless network series of strata are made of behind the one-tenth net 8 horizontal expansions voluntarily of information gathering terminal that are labeled as port11～port18 that are positioned on the 2nd～5 grade of 4 transfer of data levels, the wireless network space then becomes net to constitute by vertical expansion of described the 0th layer of wireless network layer with the 1st layer of wireless network layer voluntarily, as shown in Figure 8, the wireless network number of plies in this wireless network space equals 2, and there is a data receiving terminal terminal in the wireless network space.This wireless network space is a wireless network with three-dimensional lattice structure, in the 0th layer of wireless network layer be positioned on the 3rd level transfer of data level two be labeled as the information gathering terminal of port03, port07 and be positioned at the 4th progression according to two on the transmitting stage information gathering terminals that are labeled as port06, port08 by expanding downwards, as shown in Figure 8, these 4 information gathering terminals not only have the 0th layer of wireless network layer and the 1st layer of wireless network layer effect into the net of making, and also therefore obtain a transmission channel of one-level transfer of data level transmission data backward separately.The foundation in wireless network space not only can increase quantity and the wireless network coverage rate of information gathering terminal, and, can improve the data movement capacity of wireless network, improve accuracy and reliability that data transmit.
Transducer, signal send and are electrically connected the configuration information acquisition terminal respectively with data processor is wired with receiving equipment.Such information gathering terminal has information gathering ability, data processing and storage capacity simultaneously, data send and receiving ability, can satisfy the needs of the wireless sensor network that makes up the rectangle topology structure.Transducer is given data processor with the information that collects, and data processor compresses packing to this information and adds label and handle, and forms a packet that has label, and the label that adds is the address of this information gathering terminal.Data processor is given signal transmission and receiving equipment with this packet that has label afterwards.In this process, signal sends with receiving equipment can set up transmission channel with receiving equipment by repeatedly shaking hands with the signal transmission that is arranged in two information gathering terminals on the transmission logic adjacent node, transmits packet afterwards.Be positioned at the information of the transducer collection of the information gathering terminal processes oneself on the described transmission logic adjacent node, form a packet that has own label, afterwards with the packet and the packet of oneself the one-level transmission backward in the lump that receive.
Claims (4)
1. wireless sensor network with rectangle topology structure, have some information gathering terminals and a data receiving terminal, it is characterized in that, several information gathering terminals become net voluntarily, each information gathering terminal in the previous stage of transfer of data level has two transmission channels, and be connected with the mode of two information gathering terminals of back in the one-level with radio communication respectively, the afterbody of transfer of data level has 2～3 information gathering terminals to be connected with the mode of data receiver with radio communication.
2. the wireless sensor network with rectangle topology structure according to claim 1 is characterized in that, the transfer of data level is more than or equal to 3 grades.
3. the wireless sensor network with rectangle topology structure according to claim 1, it is characterized in that, the wireless network series of strata constitute behind the one-tenth net by being positioned at more than or equal to horizontal the expansion voluntarily of described several information gathering terminals on 3 grades the transfer of data level, the wireless network space is vertically to be expanded successively by two the above wireless network layers to become net to constitute voluntarily, the wireless network number of plies in the wireless network space is more than or equal to 2, and there is 1 described data receiver in the wireless network space.
4. the wireless sensor network with rectangle topology structure according to claim 1 is characterized in that, transducer, signal send and be electrically connected the configuration information acquisition terminal respectively with data processor is wired with receiving equipment.
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Citations (4)
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| CN102740394A (en) * | 2012-07-19 | 2012-10-17 | 济南普赛通信技术有限公司 | Center calculation wireless sensor network 2-node disjoint multipath routing algorithm |
| CN102883359A (en) * | 2012-10-19 | 2013-01-16 | 无锡赛睿科技有限公司 | Method, device and system for measuring key nodes of wireless sensor network |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808383A (en) * | 2010-03-16 | 2010-08-18 | 浙江大学 | Method for selecting matrix wireless sensor network-oriented random routing |
| CN102065447A (en) * | 2010-12-30 | 2011-05-18 | 北京林业大学 | Wireless sensor network deployment method |
| CN102740394A (en) * | 2012-07-19 | 2012-10-17 | 济南普赛通信技术有限公司 | Center calculation wireless sensor network 2-node disjoint multipath routing algorithm |
| CN102883359A (en) * | 2012-10-19 | 2013-01-16 | 无锡赛睿科技有限公司 | Method, device and system for measuring key nodes of wireless sensor network |
Non-Patent Citations (1)
| Title |
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| EDOARDO S. BIAGIONI，ETAL.: "Wireless Sensor Placement For Reliable and Efficient Data Collection", 《PROCEEDINGS OF THE 36TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS’03)》, 31 December 2002 (2002-12-31), pages 1 - 10 * |
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Application publication date: 20130828 |