CN103957553A - Sense coexisting TD-SCDMA and sensor network convergence transmission system - Google Patents
Sense coexisting TD-SCDMA and sensor network convergence transmission system Download PDFInfo
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Abstract
The invention provides a sense coexisting TD-SCDMA and sensor network convergence transmission system, belongs to the technical field of broadband wireless mobile communication networks and aims at the problem that data transmission of an existing wireless sensor network cannot adapt to the demands of complicated electromagnetic and geographical environments on different networking modes. The sense coexisting TD-SCDMA and sensor network convergence transmission system comprises a sensor node, an aggregation node and a central node. The sensor node is used for monitoring an electromagnetic frequency spectrum and transmitting monitored data to the aggregation node. The aggregation node is used for reporting a network topological graph and relaying and forwarding data. The central node is used for serving as a control node, issuing an instruction, summarizing frequency spectrum monitoring information and generating the network topological graph. The sensor node, the aggregation node and the central node respectively have Wi-Fi and TO-SCDMS transmission means, and the data can be transmitted in Wi-Fi and TO-SCDMS hybrid networks. The sense coexisting TD-SCDMA and sensor network convergence transmission system is used in a wireless sensor network.
Description
Technical field
The present invention relates to a kind of wireless sensor network transmission system, belong to wideband wireless mobile communication network technology field.
Background technology
The electromagnetic spectrum monitoring system of wireless sensor network is comprised of sensing node, aggregation node and three kinds of network equipments of Centroid.Wherein sensing node is responsible for electromagnetic spectrum monitoring, and the data of monitoring are collected at aggregation node place.Aggregation node can be stored the data of sensing node, fusion or feature extraction, then important data is passed to Centroid.Centroid is responsible for all spectrum monitoring information to gather, and the situation map of generating network.Where necessary, Centroid also can arrive aggregation node place and carries out data mining.The electromagnetic spectrum monitoring system networking underaction of existing wireless sensor network, therefore can not adapt to complicated electromagnetism and the demand of geographical environment to different networking modes.
There is very large difference in two kinds of transmission means of Wi-Fi and TD-SCDMA, the most basic difference comprises aspect wireless transmission: the transmission of the first, Wi-Fi architecture formula wireless multi-hop relay, and TD-SCDMA architecture formula one is jumped wireless transmission; The IP address of the second, Wi-Fi network interface card is static address,, and the IP address of TD-SCDMA network interface card is dynamic IP.
Summary of the invention
The present invention seeks to cannot adapt to complicated electromagnetism and the problem of geographical environment to the demand of different networking modes in order to solve the transfer of data of existing wireless sensor network, provide TD-SCDMA and the sensor network that a kind of perception coexists to merge transmission system.
The TD-SCDMA that perception of the present invention coexists and sensor network merge transmission system, and wireless sensor network electromagnetic spectrum monitoring system comprises sensing node, aggregation node and Centroid;
Described sensing node is for monitoring electromagnetic spectrum, and by the transfer of data of monitoring to aggregation node;
Described aggregation node, for network topological diagram is reported, carries out relaying and forwarding to data;
Described Centroid, for as controlling node, issues, spectrum monitoring information is gathered, network topological diagram is generated instruction;
Described sensing node, aggregation node and Centroid all possess Wi-Fi and two kinds of transmission means of TD-SCDMA simultaneously, and data can be transmitted in the hybrid network of Wi-Fi and TD-SCDMA.
Advantage of the present invention: sensing node, aggregation node and Centroid that the TD-SCDMA that perception of the present invention coexists and sensor network merge transmission system all possess Wi-Fi and two kinds of transmission means of TD-SCDMA simultaneously, data can be transmitted in the hybrid network of TD-SCDMA and Wi-Fi, realize the fusion of TD-SCDMA and Wi-Fi network.
Compared with prior art, the invention has the beneficial effects as follows that this cover transmission plan has effectively utilized existing hardware device can meet networking demand, needs that can adaptive system demonstration and verification.And this cover transmission plan flexible design, can support the multiple transmission mode communication of up-downgoing, can fully adapt to the communication requirement under complex electromagnetic environment, meets the later stage for the technology evolution of the operations such as data fusion and data mining.
Accompanying drawing explanation
Fig. 1 is the structural representation of employing TD-SCDMA of the present invention and Wi-Fi hybrid transmission system; Fig. 2 is the protocol stack that sensing node has the TD-SCDMA network coverage; Fig. 3 is the protocol stack that sensing node does not have the TD-SCDMA network coverage; Fig. 4 is the protocol stack that aggregation node has available TD-SCDMA network; Fig. 5 is the protocol stack that aggregation node does not have available TD-SCDMA network; Fig. 6 is that sensing node sends data to the schematic flow sheet of Centroid by TD-SCDMA transmission means; Fig. 7 is that sensing node sends data to the schematic flow sheet of aggregation node by Wi-Fi transmission means; Fig. 8 be sensing node pass through Wi-Fi transmission means by data multi-hop the schematic flow sheet to Centroid; Fig. 9 is that aggregation node sends data to the schematic flow sheet of Centroid by TD-SCDMA transmission means; Figure 10 be aggregation node pass through Wi-Fi transmission means by data multi-hop relay the schematic flow sheet to Centroid; Figure 11 be aggregation node pass through Wi-Fi transmission means by data multi-hop relay the schematic flow sheet to other aggregation node; Figure 12 is that Centroid sends data to the schematic flow sheet of aggregation node by TD-SCDMA transmission means; Figure 13 is that Centroid sends data to the schematic flow sheet of sensing node by TD-SCDMA transmission means; Figure 14 is that Centroid sends data to the schematic flow sheet of sensing node by TD-SCDMA and Wi-Fi mixed transport mode; Figure 15 be Centroid pass through Wi-Fi transmission means by data multi-hop relay the schematic flow sheet to aggregation node; Figure 16 be Centroid pass through Wi-Fi transmission means by data multi-hop relay the schematic flow sheet to sensing node; Figure 17 is that aggregation node sends data to the schematic flow sheet of sensing node by Wi-Fi transmission means; Figure 18 is the flow chart that sensing node sends data; Figure 19 is the flow chart that aggregation node sends data; Figure 20 is the flow chart that Centroid sends data.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the TD-SCDMA that described in present embodiment, perception coexists and sensor network merge transmission system, and wireless sensor network electromagnetic spectrum monitoring system comprises sensing node, aggregation node and Centroid;
Described sensing node is for monitoring electromagnetic spectrum, and by the transfer of data of monitoring to aggregation node;
Described aggregation node, for network topological diagram is reported, carries out relaying and forwarding to data;
Described Centroid, for as controlling node, issues, spectrum monitoring information is gathered, network topological diagram is generated instruction;
Described sensing node, aggregation node and Centroid all possess Wi-Fi and two kinds of transmission means of TD-SCDMA simultaneously, and data can be transmitted in the hybrid network of Wi-Fi and TD-SCDMA.
Embodiment two: present embodiment is described further execution mode one, described each sensing node is only communicated by letter with an aggregation node; Described Centroid can obtain the corresponding situation of Wi-Fi address with the TD-SCDMA address of each sensing node and aggregation node, and Centroid can obtain the network topology of the aggregation node described in each sensing node.
Embodiment three: present embodiment is described further execution mode one, described sensing node and Centroid can determine between node whether have path automatically according to current network state, and can determine that the type of this path is TD-SCDMA path or Wi-Fi path.
Embodiment four: present embodiment is described further execution mode one, the transmission preferences of data is selected TD-SCDMA transmission means, when TD link does not exist, by aggregation node, utilizes Wi-Fi to transmit; Sensing node, aggregation node and Centroid all can receive the data of transmitting with TD-SCDMA and two kinds of modes of Wi-Fi.
In present embodiment, TD-SCDMA transmission means is all preferentially selected in the transmission of upstream data and downlink data, that is: TD-SCDMA is preferred network: if exist TD-SCDMA network to connect between the node between communication, and when signal quality meets the demands, the transmission of data is carried by TD-SCDMA network, otherwise adopts Wi-Fi as transmission means.
Concrete enforcement five: below in conjunction with Fig. 2 and Fig. 3, present embodiment is described, present embodiment is described further execution mode one, described perception joint adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
When sensing node is when having effective TD-SCDMA to connect between Centroid, sensing node directly sends to Centroid by TD-SCDMA network by data;
When sensing node is not when having effective TD-SCDMA to connect between Centroid, sensing node sends to its aggregation node place of administration by packet by Wi-Fi interface; Aggregation node judges that whether the TD-SCDMA network between aggregation node and Centroid is available: if available, aggregation node sends to Centroid by the data of reception by TD-SCDMA network, if unavailable, aggregation node utilizes Wi-Fi interface to send to Centroid by the mode of multi-hop relay the data of reception.
In present embodiment, in order to simplify Top-layer Design Method, whether application layer is not distinguished TD-SCDMA network available, but directly grouping is sent to network layer; In network layer, the present invention has designed a network interface card scheduler, can judge that whether TD-SCDMA network is available, thereby determines in fact grouping by which network is transmitted.
Concrete enforcement six: present embodiment is described further execution mode five, when sensing node adopts Wi-Fi transmission, first the aggregation node that grouping is passed to this sensing node of management, carries out data storage, data fusion, feature extraction and forwarding by this aggregation node.
In present embodiment, when sensing node adopts Wi-Fi transmission, first grouping is passed to the aggregation node of this sensing node of management, this kind of mode can reduce the data volume in packet relay repeating process effectively.
Concrete enforcement seven: below in conjunction with Fig. 4 and Fig. 5, present embodiment is described, present embodiment is described further execution mode one, described aggregation node adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
When the TD-SCDMA of aggregation node network can be used, and when the destination address of grouping is Centroid, the packet encapsulation that aggregation node will send becomes TD-SCDMA protocol packet, and destination address is set to the address of Centroid TD-SCDMA network interface card, then by TD-SCDMA network, send to Centroid;
When the TD-SCDMA of aggregation node network is unavailable, the packet encapsulation that aggregation node will send becomes Wi-Fi protocol packet, then by Wi-Fi network, sends to Centroid.
In present embodiment, HITR Routing Protocol will carry out multi-hop Route establishment and the forwarding of grouping multi-hop relay for the grouping sending out.
Concrete enforcement eight: below in conjunction with Fig. 4 and Fig. 5, present embodiment is described, present embodiment is described further execution mode one, described Centroid adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
Centroid is monitored the data from TD-SCDMA and Wi-Fi network by two ports simultaneously, when any one port has data to arrive, Centroid deposits the data of reception in a container in, when upper procedure is transferred data, Centroid returns to upper procedure by the data that deposit at first in container.
In present embodiment, Centroid is stored the information of aggregation node under the TD-SCDMA NIC address of all nodes and the corresponding relation of Wi-Fi NIC address and sensing node in local data base, draw accordingly the topological diagram of whole network, utilize Hello to wrap to make database to represent the last state of whole network.Centroid utilizes a port to wrap by TD-SCDMA network and aggregation node, sensing node exchange Hello, if do not receive within a certain period of time Hello bag, think and between Centroid and aggregation node or sensing node, do not have TD-SCDMA path, these data are kept in a container, container comprises and between all and Centroid, has the aggregation node of TD-SCDMA path, the information of sensing node, and constantly updates.
Centroid is monitored respectively the information of the affiliated aggregation node of sending by Wi-Fi from sensing node by two ports and the information of the sensing node that report is managed sent by TD-SCDMA network from aggregation node.By these two kinds of data, Centroid can be set up a database, has comprised the information of the affiliated aggregation node of sensing node that has path between all and Centroid.When the two information clashes, select the last information arriving, to represent the last state of whole network.
When Centroid has grouping to send, first judge that destination node is sensing node or aggregation node:
(1) when destination node is aggregation node, first Centroid finds the TD-SCDMA NIC address that object aggregation node is corresponding so, and whether the TD-SCDMA network between judgement and aggregation node is available; If available, just utilize TD-SCDMA network that grouping is sent to aggregation node, otherwise determine whether the effective routing to this aggregation node by Wi-Fi network, if there is effective routing, just by this route, through the mode of multi-hop relay, grouping is passed to this aggregation node; Otherwise Centroid can call HITR Routing Protocol and carry out Route establishment; After Route establishment, then by newly-built route, grouping is sent to this aggregation node.
(2) when destination node is sensing node, first Centroid finds the TD-SCDMA NIC address that object sensing node is corresponding so, judges that whether the TD-SCDMA network interface card of this sensing node is available by Query Database; If available, just by TD-SCDMA network, grouping is directly passed to this sensing node, otherwise Centroid is searched the convergent node information that local data base finds this sensing node of management; Then Centroid finds the TD-SCDMA NIC address that this aggregation node is corresponding, whether the TD-SCDMA network that judges this aggregation node is available, if the available head that just the Wi-Fi NIC address of object sensing node is write to grouped data, by TD-SCDMA network, the grouping after encapsulation is sent to this aggregation node, aggregation node receives after grouped data by TD-SCDMA network interface card, the datagram of receiving by parsing obtains the real purpose address of this datagram and original datagram, then utilizes Wi-Fi network interface card that original datagram is mail to object sensing node; Otherwise, if and TD-SCDMA network is unavailable between affiliated aggregation node, Centroid just determines whether the effective routing to this sensing node by Wi-Fi network, if there is effective routing, just by this route, through the mode of multi-hop relay, grouping is passed to this sensing node; Otherwise Centroid can call HITR Routing Protocol and carry out Route establishment; After Route establishment, then by newly-built route, grouping is sent to this sensing node.Whole protocol stack more complicated is in this case the comprehensive of Fig. 2-Fig. 5.
Concrete enforcement nine: present embodiment is described below in conjunction with Fig. 6-Figure 11, present embodiment is described further execution mode one, present embodiment illustrates the detailed process of the uplink communication of transmission system of the present invention: uplink communication, refers to that to Centroid be the communication mode of communication source node and destination node to Centroid, sensing node to aggregation node or aggregation node by sensing node;
Owing to there are two kinds of network architecture of Wi-Fi and TD-SCDMA simultaneously, so uplink communication can have multiple implementation, concrete scheme is as follows:
1, sensing node transfers data to Centroid by TD-SCDMA
If sensing node and Centroid be all under the effective covering in TD-SCDMA network, and signal quality and bandwidth meet technical requirement, and sensing node will directly utilize TD-SCDMA network that grouping is sent to Centroid so, as shown in Figure 6.
2, sensing node by Wi-Fi transmitted data on network to managing its aggregation node
Sensing node, in the process of electromagnetic spectrum monitoring, constantly has packet or reporting information to produce; These packets need directly to report its aggregation node of management sometimes, carry out work such as data fusion, data storage and feature extraction, and then determine by aggregation node whether these data need to be uploaded to Centroid by aggregation node; Equally, sensing node can constantly give management its aggregation node its information reportings such as operating state, thereby makes aggregation node can monitor in real time the operating state of sensing node; Due to sensing node and aggregation node close together, now adopt Wi-Fi to carry out transfer of data and can reduce system load, improve resource utilization, as shown in Figure 7.
3, sensing node, by Wi-Fi, transfers data to Centroid through the Wi-Fi of aggregation node multi-hop relay
Sometimes the coverage hole that sensing node can be in TD-SCDMA signal, or in order to reduce the transmitting power consumption of sensing node, force its use Wi-Fi to carry out data communication, now first sensing node will send to its aggregation node of management by data by Wi-Fi; If this aggregation node has the TD-SCDMA network to Centroid, it will utilize TD-SCDMA network that data are directly transmitted to Centroid so, otherwise aggregation node can continue to pass through other aggregation node to Centroid relay for packets by Wi-Fi network, aggregation node subsequently will no longer judge that whether its TD-SCDMA network is available, and directly utilize the mode of Wi-Fi multi-hop relay that grouping is passed to Centroid, as shown in Figure 8.
4, aggregation node transfers data to Centroid through TD-SCDMA
Aggregation node, except the data of relaying sensing node, also can produce packet as source node sometimes, such as various state informations etc.Now, if aggregation node have with Centroid between TD-SCDMA network be connected, aggregation node will directly utilize TD-SCDMA network that grouping is passed to Centroid so, as shown in Figure 9.
5, aggregation node sends data to Centroid through Wi-Fi multi-hop relay
When aggregation node need to send grouping as source node, if there is no the effective TD-SCDMA network coverage between aggregation node and Centroid, so just by Wi-Fi network, will divide into groups multi-hop relay to Centroid.Except the aggregation node of source, whether follow-up aggregation node all no longer detects its TD-SCDMA network available, but directly utilizes Wi-Fi network to carry out relaying, thereby reaches the object that reduces processing delay, as shown in figure 10.
6, aggregation node sends data to other aggregation node through Wi-Fi multi-hop relay
Although do not need between aggregation node the communication pattern as source node and destination node in current system schema, but for the continuity of project from now on and the completeness of scheme, we have proposed between aggregation node the scheme of carrying out networking by Wi-Fi multi-hop relay pattern as source node and destination node, as shown in figure 11.
In present embodiment, we do not consider that aggregation node directly sends to data the pattern of other aggregation node by TD-SCDMA network, because as TD-SCDMA network, the IP address of each network interface card is dynamic.Certain aggregation node is difficult to know the dynamic IP addressing of other aggregation node TD-SCDMA network interface card in actual applications.And in the design of current network architecture, the also business demand to data communication between aggregation node to aggregation node not.Based on this reason, we have only designed the mode of utilizing the poly-inter-node communication of Wi-Fi network implementation cash.If Wi-Fi network cannot be realized communication, first aggregation node can also send the data to Centroid by TD-SCDMA network, thereby then by Centroid, this data retransmission is met to functional requirement to object aggregation node.
Concrete enforcement ten: present embodiment is described below in conjunction with Figure 12-Figure 17, present embodiment is described further execution mode one, present embodiment illustrates the detailed process of the downlink communication of transmission system of the present invention: downlink communication, refers to that to aggregation node be the communication mode of communication source node and destination node to sensing node, aggregation node to sensing node or Centroid by Centroid.
Owing to there are two kinds of network architecture of Wi-Fi and TD-SCDMA simultaneously, so downlink communication can have multiple implementation, concrete scheme is as follows:
1, Centroid sends data to aggregation node through TD-SCDMA
Whether Centroid, when having grouping to be sent to aggregation node, has to the TD-SCDMA network of this aggregation node and effectively connects first detecting it.If TD-SCDMA network can be used, will directly utilize so TD-SCDMA network that grouping is sent to object aggregation node, as shown in figure 12.
2, Centroid sends data to sensing node through TD-SCDMA
When Centroid has grouping need to be sent to certain sensing node, whether it effectively connects first detecting to have to the TD-SCDMA network of this sensing node; If TD-SCDMA network can be used, will directly utilize so TD-SCDMA network that grouping is sent to object sensing node, as shown in figure 13.
3, Centroid sends data to aggregation node through TD-SCDMA, and then aggregation node is by sensing node corresponding to forwarding of packets
Sometimes the blind area of sensing node in the TD-SCDMA network coverage, or because the object such as energy-conservation has been closed the TD-SCDMA network interface card on it.Now, when Centroid need to send grouping to sensing node, effective TD-SCDMA connection of not arriving object sensing node can be detected, Centroid will be searched local data base so, finds the aggregation node of this sensing node of management.If Centroid has to effective TD-SCDMA network of this aggregation node, connect, first Centroid will send to grouping this aggregation node so.Aggregation node receives after grouping, then by Wi-Fi network by packet relay to object sensing node, concrete scheme is as shown in figure 14.
4, Centroid sends data to aggregation node by Wi-Fi through multi-hop relay
If it is certain aggregation node that Centroid sends the destination node of grouping, and between them, do not have effective TD-SCDMA network to connect, Centroid will will divide into groups multi-hop relay to object aggregation node, as shown in figure 15 by Wi-Fi network so.
5, Centroid sends data to sensing node by Wi-Fi through multi-hop relay
Equally, if it is certain sensing node that Centroid sends the destination node of grouping, and not only between them, do not have effective TD-SCDMA network to connect, Centroid with management this sensing node aggregation node between do not have effective TD-SCDMA to be connected yet, Centroid will will divide into groups multi-hop relay to object sensing node, as shown in figure 16 by Wi-Fi network so.
6, aggregation node sends data to sensing node by Wi-Fi
When aggregation node has data will send to certain sensing node that it manages, in order to save transmitting power and to reduce the interference to other node, aggregation node adopts Wi-Fi network that grouping is directly sent to object sensing node, as shown in figure 17.
Concrete enforcement 11: below in conjunction with Figure 18-Figure 20, present embodiment is described, present embodiment is described further execution mode one, and present embodiment illustrates that the communication mode of transmission system of the present invention is:
1, sensing node sends data (1-3 of corresponding uplink communication pattern)
If sensing node has been closed TD-SCDMA module or there is no the effective TD-SCDMA network coverage, sensing node just need to utilize Wi-Fi that first data are sent to aggregation node so, then by aggregation node by data retransmission to Centroid.Therefore,, for transmission system, first sensing node will know whether it possesses TD-SCDMA module, and whether has available TD-SCDMA network.If possessed and available, sensing node directly utilizes this module that packet is issued to Centroid by TD-SCDMA network so.Otherwise sensing node utilizes Wi-Fi first grouping to be sent to the aggregation node of dump energy maximum in its adjacent aggregation node.Then aggregation node can judge that whether its TD-SCDMA network is available, if available, just directly utilizes TD-SCDMA network to send the data to Centroid.Otherwise trigger HITR Routing Protocol and proceed to the multi-hop Route establishment of Centroid, and utilize this route by data retransmission to Centroid.Idiographic flow as shown in figure 18.
2, aggregation node sends data (4-6 of corresponding uplink communication pattern and downlink communication pattern 6)
In some cases, aggregation node can produce voluntarily and divides into groups and send to Centroid or other aggregation node, these groupings to comprise reporting of oneself state information reporting, abnormal information circular and data mining information etc.In order to realize this function, when aggregation node has grouping to be sent, first judge that whether TD-SCDMA network is available.If available, so just this grouping is sent to the TD-SCDMA module of Centroid by TD-SCDMA network; Otherwise the mode of carrying out multi-hop relay between aggregation node by Wi-Fi network sends to grouping the Wi-Fi module of Centroid.Concrete agreement flow process as shown in figure 19.
3, Centroid sends data (1-5 of corresponding downlink communication pattern)
As equipment most crucial in system, Centroid has powerful disposal ability and transmittability.So in order effectively to improve power system capacity, overall plan allows the wireless network card at Centroid place configuration polylith Wi-Fi, and by modes such as channel allocation, makes the node of zones of different use different physical channels, thereby reach minimizing link, see interference, improve the object of power system capacity.This design concept, requires the every Wi-Fi network interface card at Centroid place can both independently move a Routing Protocol.The agreement flow process of Centroid transmission packet as shown in figure 20.
Centroid, when having data to send, first judges whether destination node is sensing node, if sensing node just sends to the related protocol flow process (as shown in Figure 20 left side) of sensing node data; Otherwise just send to the related protocol flow process (as shown in Figure 20 right-hand part) of aggregation node data.
If destination node is sensing node, first Centroid judges whether that effective TD-SCDMA network of this sensing node connects.If TD-SCDMA network can be used, so just by TD-SCDMA interface, packet is directly issued to this sensing node.Otherwise Centroid is searched local data base, judge which aggregation node administration this sensing node belongs to, and whether inspection center's node possesses TD-SCDMA network connection effectively to this aggregation node.If it is available that TD-SCDMA network connects, first Centroid will send to this aggregation node by TD-SCDMA network grouping, then by Wi-Fi network, packet relay will be transmitted to object sensing node by this aggregation node.If it is unavailable that Centroid detection is found to the TD-SCDMA network of this aggregation node, whether Centroid direct-detection has the effective Wi-Fi route to object sensing node so, if existed, directly utilizes this route is transmitted grouping mode by Wi-Fi multi-hop relay to send to object sensing node.Otherwise if there is no effective route, Centroid is created to the route of this sensing node by calling HITR agreement, and then utilizes this route to send and divide into groups to object sensing node.
If destination node is aggregation node, first Centroid judges whether that TD-SCDMA network can transmit grouping to this aggregation node.If set up, just directly utilize TD-SCDMA network that grouping is sent to object aggregation node.Otherwise Centroid inquiry local routing table judges whether the effective routing to this aggregation node by Wi-Fi interface.If set up, directly utilize Wi-Fi interface and routing iinformation to send and divide into groups to object aggregation node.Otherwise Centroid calls HITR Routing Protocol and carries out Route establishment, and send and divide into groups to object aggregation node by newly-established route.
Claims (8)
1. the TD-SCDMA that perception coexists and sensor network merge transmission system, and wireless sensor network electromagnetic spectrum monitoring system comprises sensing node, aggregation node and Centroid;
It is characterized in that, described sensing node is for monitoring electromagnetic spectrum, and by the transfer of data of monitoring to aggregation node;
Described aggregation node, for network topological diagram is reported, carries out relaying and forwarding to data;
Described Centroid, for as controlling node, issues, spectrum monitoring information is gathered, network topological diagram is generated instruction;
Described sensing node, aggregation node and Centroid all possess Wi-Fi and two kinds of transmission means of TD-SCDMA simultaneously, and data can be transmitted in the hybrid network of Wi-Fi and TD-SCDMA.
2. the TD-SCDMA that perception coexists according to claim 1 and sensor network merge transmission system, it is characterized in that, described each sensing node is only communicated by letter with an aggregation node; Described Centroid can obtain the corresponding situation of Wi-Fi address with the TD-SCDMA address of each sensing node and aggregation node, and Centroid can obtain the network topology of the aggregation node described in each sensing node.
3. the TD-SCDMA that perception coexists according to claim 1 and sensor network merge transmission system, it is characterized in that, described sensing node and Centroid can determine between node whether have path automatically according to current network state, and can determine that the type of this path is TD-SCDMA path or Wi-Fi path.
4. the TD-SCDMA coexisting according to perception described in claim 1 or 3 and sensor network merge transmission system, it is characterized in that, the transmission preferences of data is selected TD-SCDMA transmission means, when TD link does not exist, by aggregation node, utilizes Wi-Fi to transmit; Sensing node, aggregation node and Centroid all can receive the data of transmitting with TD-SCDMA and two kinds of modes of Wi-Fi.
5. the TD-SCDMA that perception coexists according to claim 1 and sensor network merge transmission system, it is characterized in that, described perception joint adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
When sensing node is when having effective TD-SCDMA to connect between Centroid, sensing node directly sends to Centroid by TD-SCDMA network by data;
When sensing node is not when having effective TD-SCDMA to connect between Centroid, sensing node sends to its aggregation node place of administration by packet by Wi-Fi interface; Aggregation node judges that whether the TD-SCDMA network between aggregation node and Centroid is available: if available, aggregation node sends to Centroid by the data of reception by TD-SCDMA network, if unavailable, aggregation node utilizes Wi-Fi interface to send to Centroid by the mode of multi-hop relay the data of reception.
6. the TD-SCDMA that perception coexists according to claim 5 and sensor network merge transmission system, it is characterized in that, when sensing node adopts Wi-Fi transmission, first the aggregation node that grouping is passed to this sensing node of management, carries out data storage, data fusion, feature extraction and forwarding by this aggregation node.
7. the TD-SCDMA that perception coexists according to claim 1 and sensor network merge transmission system, it is characterized in that, described aggregation node adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
When the TD-SCDMA of aggregation node network can be used, and when the destination address of grouping is Centroid, the packet encapsulation that aggregation node will send becomes TD-SCDMA protocol packet, and destination address is set to the address of Centroid TD-SCDMA network interface card, then by TD-SCDMA network, send to Centroid;
When the TD-SCDMA of aggregation node network is unavailable, the packet encapsulation that aggregation node will send becomes Wi-Fi protocol packet, then by Wi-Fi network, sends to Centroid.
8. the TD-SCDMA that perception coexists according to claim 1 and sensor network merge transmission system, it is characterized in that, described Centroid adopts the course of work of TD-SCDMA and two kinds of transmission means of Wi-Fi to be:
Centroid is monitored the data from TD-SCDMA and Wi-Fi network by two ports simultaneously, when any one port has data to arrive, Centroid deposits the data of reception in a container in, when upper procedure is transferred data, Centroid returns to upper procedure by the data that deposit at first in container.
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| CN111107568B (en) * | 2018-10-25 | 2022-09-27 | 成都鼎桥通信技术有限公司 | Distributed networking method, system, equipment and storage medium for multi-hop relay |
| CN114845337A (en) * | 2022-03-29 | 2022-08-02 | 江苏赛立科技有限公司 | Multi-network fusion sensing information intelligent transmission control method and system |
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