CN103957553B - Perceive the TD SCDMA coexisted and merge Transmission system with sensor network - Google Patents
Perceive the TD SCDMA coexisted and merge Transmission system with sensor network Download PDFInfo
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Abstract
Perceive the TD SCDMA coexisted and merge Transmission system with sensor network, belong to wideband wireless mobile communication network technology field, the present invention can not adapt to the problem of complicated electromagnetism and geographical environment are to the demands of different networking modes to solve the data transfer of existing wireless sensor network.The present invention includes sensing node, aggregation node and Centroid；Sensing node is used to be monitored electromagnetic spectrum, and the data of monitoring are transferred into aggregation node；Aggregation node is used to report network topological diagram, and data are relayed and forwarded；Centroid is used to, as control node, issue instruction, collect spectrum monitoring information, generate network topological diagram；Sensing node, aggregation node and Centroid are provided simultaneously with two kinds of transmission means of Wi Fi and TD SCDMA, and data can be transmitted in Wi Fi and TD SCDMA hybrid network.The present invention is used in 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 by sensing node, three kinds of networks of aggregation node and Centroid
Equipment is constituted.Wherein sensing node is responsible for electromagnetic spectrum monitoring, and the data of monitoring are collected at aggregation node.Aggregation node
The data of sensing node can be stored, be merged or feature extraction, then by important data transfer to Centroid.In
Heart node is responsible for being collected all spectrum monitoring information, and generates the situation map of network.When necessary, Centroid also may be used
With to carrying out data mining at aggregation node.The electromagnetic spectrum monitoring system networking of existing wireless sensor network is not clever enough
It is living, therefore the demand of electromagnetism and geographical environment to different networking modes of complexity can not be adapted to.
Two kinds of transmission means of Wi-Fi and TD-SCDMA are being wirelessly transferred aspect in the presence of very big difference, most basic difference
Including：First, Wi-Fi architecture formula wireless multi-hop relay are transmitted, and TD-SCDMA architectures formula one is jumped and is wirelessly transferred；The
The IP address of two, Wi-Fi network interface card is static address, and the IP address of TD-SCDMA network interface cards is dynamic IP.
The content of the invention
Complicated electromagnetism and ground can not be adapted to the invention aims to the data transfer for solving existing wireless sensor network
The problem of reason environment is to the demands of different networking modes is merged there is provided a kind of TD-SCDMA for coexisting of perceiving with sensor network
Transmission system.
The TD-SCDMA of the present invention that coexist that perceives merges Transmission system, wireless sensor network electricity with sensor network
Magnetic frequency spectrum monitoring system includes sensing node, aggregation node and Centroid；
The sensing node is used to be monitored electromagnetic spectrum, and the data of monitoring are transferred into aggregation node；
The aggregation node is used to report network topological diagram, and data are relayed and forwarded；
The Centroid is used for as control node, instruction is issued, spectrum monitoring information is collected, right
Network topological diagram is generated；
The sensing node, aggregation node and Centroid are provided simultaneously with two kinds of transmission means of Wi-Fi and TD-SCDMA,
Data can be transmitted in Wi-Fi and TD-SCDMA hybrid network.
Advantages of the present invention：The TD-SCDMA of the present invention that coexist that perceives merges Transmission system with sensor network
Sensing node, aggregation node and Centroid are provided simultaneously with two kinds of transmission means of Wi-Fi and TD-SCDMA, and data can be
Transmitted in TD-SCDMA and Wi-Fi hybrid network, realize the fusion of TD-SCDMA and Wi-Fi network.
Compared with prior art, existing hardware is efficiently utilized the beneficial effects of the invention are as follows the set transmission plan to set
It is standby and networking requirements can be met, the need for being adapted to system demonstration and verification.And the set transmission plan flexible design, Ke Yizhi
The multiple transmission mode communication of up-downgoing is held, the communication requirement under complex electromagnetic environment can be fully adapted to, meet the later stage for number
According to the technological evolvement of the operations such as fusion and data mining.
Brief description of the drawings
Fig. 1 is use TD-SCDMA of the present invention and the structural representation of Wi-Fi hybrid transmission systems；Fig. 2 is to perceive
Node has the protocol stack that TD-SCDMA network is covered；Fig. 3 is the protocol stack that sensing node does not have TD-SCDMA network to cover；Fig. 4
It is the protocol stack that aggregation node has available TD-SCDMA network；Fig. 5 is the agreement that aggregation node not can use TD-SCDMA network
Stack；Fig. 6 is the schematic flow sheet that sensing node sends data to Centroid by TD-SCDMA transmission means；Fig. 7 is sense
Know that node sends data to the schematic flow sheet of aggregation node by Wi-Fi transmission means；Fig. 8 is that sensing node passes through Wi-
Fi transmission means will skip to the schematic flow sheet of Centroid data more；Fig. 9 is that aggregation node passes through TD-SCDMA transmission means
Send data to the schematic flow sheet of Centroid；Figure 10 be aggregation node by Wi-Fi transmission means by data multi-hop
After the schematic flow sheet to Centroid；Figure 11 is aggregation node by Wi-Fi transmission means by data multi-hop relay to other
The schematic flow sheet of aggregation node；Figure 12 is that Centroid sends data to aggregation node by TD-SCDMA transmission means
Schematic flow sheet；Figure 13 is that the flow that Centroid sends data to sensing node by TD-SCDMA transmission means is illustrated
Figure；Figure 14 is that the flow that Centroid sends data to sensing node by TD-SCDMA and Wi-Fi mixed transport modes is shown
It is intended to；Figure 15 is Centroid by Wi-Fi transmission means by the schematic flow sheet of data multi-hop relay to aggregation node；Figure 16
It is Centroid by Wi-Fi transmission means by the schematic flow sheet of data multi-hop relay to sensing node；Figure 17 is convergence section
Point sends data to the schematic flow sheet of sensing node by Wi-Fi transmission means；Figure 18 is that sensing node sends data
Flow chart；Figure 19 is the flow chart that aggregation node sends data；Figure 20 is the flow chart that Centroid sends data.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1, the TD- coexisted is perceived described in present embodiment
SCDMA merges Transmission system with sensor network, and wireless sensor network electromagnetic spectrum monitoring system includes sensing node, convergence
Node and Centroid；
The sensing node is used to be monitored electromagnetic spectrum, and the data of monitoring are transferred into aggregation node；
The aggregation node is used to report network topological diagram, and data are relayed and forwarded；
The Centroid is used for as control node, instruction is issued, spectrum monitoring information is collected, right
Network topological diagram is generated；
The sensing node, aggregation node and Centroid are provided simultaneously with two kinds of transmission means of Wi-Fi and TD-SCDMA,
Data can be transmitted in Wi-Fi and TD-SCDMA hybrid network.
Embodiment two：Present embodiment is described further to embodiment one, and each sensing node is only
Communicated with an aggregation node；The Centroid can obtain each sensing node and the Wi-Fi addresses of aggregation node and TD-
The corresponding situation of SCDMA addresses, Centroid can obtain the network topology of the aggregation node described in each sensing node.
Embodiment three：Present embodiment is described further to embodiment one, the sensing node and center
Whether node can be automatically determined according to current network state between node path, and can determine that the type of the path is
TD-SCDMA paths or Wi-Fi paths.
Embodiment four：Present embodiment is described further to embodiment one, the transmission preferences selection of data
TD-SCDMA transmission means, when TD links are not present, is transmitted by aggregation node using Wi-Fi；Sensing node, convergence
Node and Centroid can receive the data transmitted with TD-SCDMA and Wi-Fi two ways.
In present embodiment, the equal prioritizing selection TD-SCDMA transmission means of transmission of upstream data and downlink data, i.e.,：
TD-SCDMA is preferred network：If there is TD-SCDMA network connection between the node between communication, and signal quality meets and wanted
When asking, the transmission of data is carried by TD-SCDMA network, is otherwise used as transmission means using Wi-Fi.
Specific implementation five：Illustrate present embodiment with reference to Fig. 2 and Fig. 3, present embodiment embodiment one is made into
One step illustrate, it is described perceive section use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
When sensing node is to when having effective TD-SCDMA connections between Centroid, sensing node directly passes through data
TD-SCDMA network is sent to Centroid；
When sensing node is not to when having effective TD-SCDMA connections between Centroid, sensing node leads to packet
Cross Wi-Fi interface be sent to administration its aggregation node at；Aggregation node judges the TD- between aggregation node and Centroid
Whether SCDMA networks can use：If it is available, then the data of reception are sent to centromere by aggregation node by TD-SCDMA network
Point, if it is not then the data of reception are sent to center by aggregation node using Wi-Fi interface by way of multi-hop relay
Node.
In present embodiment, in order to simplify Top-layer Design Method, application layer does not differentiate between whether TD-SCDMA network can use, but directly
Internet will be sent packets to by connecing；In Internet, the present invention devises a network interface card scheduler, it can be determined that TD-SCDMA network
Which whether can use, so as to determine actually network to be transmitted packet by.
Specific implementation six：Present embodiment is described further to embodiment five, when sensing node is transmitted using Wi-Fi
When, it will be grouped pass to the aggregation node for managing the sensing node first, carrying out data storage, data by the aggregation node melts
Conjunction, feature extraction and forwarding.
In present embodiment, when sensing node is transmitted using Wi-Fi, it will be grouped to pass to first and manage the sensing node
Aggregation node, such a mode can efficiently reduce the data volume during packet relay forwarding.
Specific implementation seven：Illustrate present embodiment with reference to Fig. 4 and Fig. 5, present embodiment embodiment one is made into
One step illustrate, the aggregation node use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
When the TD-SCDMA network of aggregation node can use, and the destination address being grouped is when being Centroid, aggregation node
The packet that will be sent is packaged into TD-SCDMA protocol packets, and destination address is set into Centroid TD-SCDMA network interface cards
Address, Centroid is then sent to by TD-SCDMA network；
When the TD-SCDMA network of aggregation node is unavailable, the packet that aggregation node will be sent is packaged into Wi-Fi associations
View packet, is then sent to Centroid by Wi-Fi network.
In present embodiment, HITR Routing Protocols will be that the packet sent out carries out multihop routing foundation and packet multi-hop
Relay forwarding.
Specific implementation eight：Illustrate present embodiment with reference to Fig. 4 and Fig. 5, present embodiment embodiment one is made into
One step illustrate, the Centroid use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
Centroid by two ports while listening for the data from TD-SCDMA and Wi-Fi network, when any one
When there is data arrival port, the data of reception are stored in a container by Centroid, when upper procedure called data, center
The data being stored at first in container are returned to upper procedure by node.
In present embodiment, Centroid store in the local database all nodes TD-SCDMA NIC address and
The information of the affiliated aggregation node of corresponding relation and sensing node of Wi-Fi NIC address, draws the topological diagram of whole network accordingly,
Make the last state of database representation whole network using Hello bags.Centroid passes through TD-SCDMA using a port
Network and aggregation node, sensing node exchange Hello bags, if not receiving Hello bags within a certain period of time, then it is assumed that center
TD-SCDMA paths are not present between node and aggregation node or sensing node, this data is preserved in a vessel, in container
Information including all aggregation nodes that there is TD-SCDMA paths between Centroid, sensing node, and constantly update.
Centroid is monitored respectively by two ports passes through the Wi-Fi affiliated aggregation nodes sent from sensing node
Information and the information that sensing node is managed from the report that aggregation node is sent by TD-SCDMA network.Counted by both
According to Centroid can set up a database, include belonging to all sensing nodes that there is path between Centroid
The information of aggregation node.When the information of both is clashed, the information finally reached is selected, to represent whole network
Last state.
When Centroid has packets to send, judge that destination node is sensing node or aggregation node first：
(1) when destination node is aggregation node, then Centroid finds the corresponding TD- of purpose aggregation node first
SCDMA NIC address, judges whether the TD-SCDMA network between aggregation node can use；TD-SCDMA is utilized if available
Network will send packets to aggregation node, otherwise determine whether there is the effective routing to the aggregation node by Wi-Fi network, such as
Fruit has effective routing, and packet just is passed into the aggregation node by way of the route is through multi-hop relay；Otherwise, Centroid
HITR Routing Protocols can be called to carry out Route establishment；After Route establishment, then the convergence will be sent packets to by newly-built route
Node.
(2) when destination node is sensing node, then Centroid finds the corresponding TD- of purpose sensing node first
SCDMA NIC address, judges whether the TD-SCDMA network interface cards of the sensing node can use by inquiring about database；Lead to if available
Cross TD-SCDMA network and packet is directly passed to the sensing node, otherwise Centroid lookup local data base finds management and is somebody's turn to do
The convergent node information of sensing node；Then Centroid finds the corresponding TD-SCDMA NIC address of the aggregation node, judges
Whether the TD-SCDMA network of the aggregation node can use, and write the Wi-Fi NIC address of purpose sensing node if available
The head of grouped data, will send packets to the aggregation node, aggregation node passes through TD- by TD-SCDMA network after encapsulation
SCDMA network interface cards are received after grouped data, and the real purpose address of the datagram is obtained and original by parsing the datagram that receives
Datagram, original datagram is then sent to purpose sensing node using Wi-Fi network interface cards；Otherwise, if saved with affiliated convergence
TD-SCDMA network is unavailable between point, and whether Centroid is decided that has by Wi-Fi network to the effective of the sensing node
Route, if effective routing, just passes to the sensing node by way of the route is through multi-hop relay by packet；Otherwise,
Centroid can call HITR Routing Protocols to carry out Route establishment；After Route establishment, then by newly-built route by packet transmission
Give the sensing node.In this case whole protocol stack is more complicated, is Fig. 2-Fig. 5 synthesis.
Specific implementation nine：Illustrate present embodiment with reference to Fig. 6-Figure 11, present embodiment embodiment one is made into
One step illustrates that present embodiment illustrates the detailed process of the uplink communication of Transmission system of the present invention：Uplink communication, refer to by
Sensing node to Centroid, sensing node to aggregation node or aggregation node to Centroid be communication source node and purpose section
The communication mode of point；
Due to there are two kinds of network architecture of Wi-Fi and TD-SCDMA simultaneously, so uplink communication can have a variety of realities
Existing mode, concrete scheme is as follows：
1st, sensing node transfers data to Centroid by TD-SCDMA
If sensing node and Centroid are under effective covering of TD-SCDMA network, and signal quality and band
Width meets technical requirement, then sensing node utilizes TD-SCDMA network to send packets to Centroid by direct, such as
Shown in Fig. 6.
2nd, sensing node is transferred data to by Wi-Fi network and manages its aggregation node
Sensing node constantly has packet or reports information to produce during electromagnetic spectrum is monitored；These numbers
According to packet sometimes for directly report manage its aggregation node, by aggregation node carry out such as data fusion, data storage
With the work such as feature extraction, then determine whether these data need to be uploaded to Centroid by aggregation node again；Equally, perceive
Node can be constantly by information reportings such as its working conditions to its aggregation node be managed, so that aggregation node can be real-time
Monitor the working condition of sensing node；Because sensing node and aggregation node are closer to the distance, data biography is now carried out using Wi-Fi
It is defeated to reduce system load, resource utilization is improved, as shown in Figure 7.
3rd, sensing node is by Wi-Fi, and the Wi-Fi multi-hop relays through aggregation node transfer data to Centroid
Sometimes sensing node can be in the coverage hole of TD-SCDMA signals, or in order to reduce the transmitting work(of sensing node
Consume and force it to enter row data communication using Wi-Fi, now data will be sent to pipe first by sensing node by Wi-Fi
Manage its aggregation node；If the aggregation node has the TD-SCDMA network to Centroid, then it will utilize TD-
Data are directly forwarded to Centroid by SCDMA networks, and otherwise aggregation node may proceed to pass through other convergences by Wi-Fi network
Node will no longer judge whether its TD-SCDMA network can use to Centroid relay for packets, subsequent aggregation node, and direct
Packet is passed into Centroid using the mode of Wi-Fi multi-hop relays, as shown in Figure 8.
4th, aggregation node transfers data to Centroid through TD-SCDMA
Aggregation node also can produce packet, for example respectively as source node sometimes in addition to the data of relaying sensing node
Plant status information etc..Now, if aggregation node has the TD-SCDMA network connection between Centroid, then aggregation node will
Packet is directly passed into Centroid using TD-SCDMA network, as shown in Figure 9.
5th, aggregation node sends data to Centroid through Wi-Fi multi-hop relays
When aggregation node needs to send packet as source node, if without effective between aggregation node and Centroid
TD-SCDMA network is covered, then just will be grouped multi-hop relay to Centroid by Wi-Fi network.In addition to the aggregation node of source,
Follow-up aggregation node no longer detects whether its TD-SCDMA network can use, but is directly relayed using Wi-Fi network,
So as to reach the purpose for reducing processing delay, as shown in Figure 10.
6th, aggregation node sends data to other aggregation nodes through Wi-Fi multi-hop relays
Although as source node and the communication pattern of destination node between not needing aggregation node in current system schema,
For the completeness of the continuity of project and scheme from now on, we have proposed pass through between aggregation node as source node and destination node
Wi-Fi multi-hop relays pattern carries out the scheme of networking, as shown in figure 11.
In present embodiment, we do not consider that data are transmitted directly to other remittances by aggregation node by TD-SCDMA network
The pattern of poly- node, because as TD-SCDMA network, the IP address of each network interface card is dynamic.Certain is converged in actual applications
Node is difficult the dynamic IP addressing for knowing other aggregation node TD-SCDMA network interface cards.And in current network architecture design
In, also business demand not aggregation node to data communication aggregation node.Based on this reason, we only devise profit
The mode communicated between realizing aggregation node with Wi-Fi network.If Wi-Fi network can not realize communication, aggregation node can be with
Centroid is sent the data to by TD-SCDMA network first, then saved the data forwarding to purpose convergence by Centroid
Point is so as to meet functional requirement.
Specific implementation ten：Illustrate present embodiment with reference to Figure 12-Figure 17, present embodiment embodiment one is made into
One step illustrates that present embodiment illustrates the detailed process of the downlink communication of Transmission system of the present invention：Downlink communication, refer to by
Centroid to sensing node, aggregation node to sensing node or Centroid to aggregation node be communication source node and purpose section
The communication mode of point.
Due to there are two kinds of network architecture of Wi-Fi and TD-SCDMA simultaneously, so downlink communication can have a variety of realities
Existing mode, concrete scheme is as follows：
1st, Centroid sends data to aggregation node through TD-SCDMA
Centroid will detect whether it has to the aggregation node first when there is packet to need to send to aggregation node
TD-SCDMA network is effectively connected.If TD-SCDMA network can use, then will will be directly grouped and sent out using TD-SCDMA network
Purpose aggregation node is given, as shown in figure 12.
2nd, Centroid sends data to sensing node through TD-SCDMA
When Centroid has packet to need to send to certain sensing node, it will first detect whether the sensing node
TD-SCDMA network effectively connect；If TD-SCDMA network can use, then will directly will be grouped using TD-SCDMA network
Purpose sensing node is sent to, as shown in figure 13.
3rd, Centroid sends data to aggregation node through TD-SCDMA, and then aggregation node will forward the packet corresponding sense
Know node
Sometimes sensing node is in the blind area that TD-SCDMA network is covered, or because the purposes such as energy-conservation are closed thereon
TD-SCDMA network interface cards.Now, when Centroid, which needs to send to sensing node, to be grouped, it can detect and not arrive purpose perception section
Effective TD-SCDMA connections of point, then Centroid will search local data base, find the convergence for managing the sensing node
Node.If Centroid have to the aggregation node effective TD-SCDMA network connection, then Centroid will first by
Send packets to the aggregation node.Aggregation node is received after packet, then by Wi-Fi network by packet be relayed to purpose perceive
Node, concrete scheme is as shown in figure 14.
4th, Centroid sends data to aggregation node by Wi-Fi through multi-hop relay
If the destination node that Centroid sends packet is certain aggregation node, and does not have effective TD- between them
SCDMA network connections, then Centroid will will be grouped multi-hop relay to purpose aggregation node, such as Figure 15 by Wi-Fi network
It is shown.
5th, Centroid sends data to sensing node by Wi-Fi through multi-hop relay
Equally, if the destination node that Centroid sends packet is certain sensing node, and do not have between them not only
Effective TD-SCDMA network connection, also without effective TD- between Centroid and the aggregation node for managing the sensing node
SCDMA connections, then Centroid will will be grouped multi-hop relay to purpose sensing node by Wi-Fi network, as shown in figure 16.
6th, aggregation node sends data to sensing node by Wi-Fi
When aggregation node has data to be sent to some sensing node that it is managed, in order to save transmission power and drop
Packet is transmitted directly to purpose sensing node by the low interference to other nodes, aggregation node using Wi-Fi network, such as Figure 17 institutes
Show.
It is embodied 11：Illustrate present embodiment with reference to Figure 18-Figure 20, present embodiment is made to embodiment one
Further illustrate, present embodiment illustrates that the communication mode of Transmission system of the present invention is：
1st, sensing node sends data (1-3 of correspondence uplink communication pattern)
If sensing node closes TD-SCDMA modules or without the covering of effective TD-SCDMA network, then perceive section
Point is accomplished by that data are sent to aggregation node first using Wi-Fi, then forwards the data to Centroid by aggregation node.
Therefore, for Transmission system, whether sensing node has available first it is to be understood that whether it possesses TD-SCDMA modules
TD-SCDMA network.If possessing and can use, then packet is directly passed through TD-SCDMA by sensing node using the module
Network issues Centroid.Otherwise, sensing node will be grouped using Wi-Fi and be sent to residual energy in its adjacent aggregation node first
Measure maximum aggregation node.Then aggregation node can judge whether its TD-SCDMA network can use, directly sharp if available
Centroid is sent the data to TD-SCDMA network.Otherwise triggering HITR Routing Protocols proceed to the multi-hop road of Centroid
Centroid is forwarded the data to by setting up, and using the route.Idiographic flow is as shown in figure 18.
2nd, aggregation node sends data (4-6 of correspondence uplink communication pattern and the 6 of DOWN communication mode)
In some cases, aggregation node, which can be produced voluntarily, is grouped and is sent to Centroid or other aggregation nodes, this
A little packets include reporting for oneself state information reporting, abnormal information circular and data mining information.In order to realize the work(
Can, when aggregation node has packet to be sent, first determine whether whether TD-SCDMA network can use.If it is available, so just will
The packet is sent to the TD-SCDMA modules of Centroid by TD-SCDMA network；Otherwise, converged by Wi-Fi network
The mode of multi-hop relay will send packets to the Wi-Fi module of Centroid between node.Specific agreement flow is as shown in figure 19.
3rd, Centroid sends data (1-5 of correspondence DOWN communication mode)
As equipment most crucial in system, Centroid has powerful disposal ability and transmittability.So in order to
Power system capacity is effectively improved, overall plan allows to configure polylith Wi-Fi wireless network cards at Centroid, and passes through channel distribution
Etc. mode, the node of different zones is used different physical channels, so as to reach that reduction link is shown in interference, improve power system capacity
Purpose.This design concept, it is desirable to one route association of the operation that every piece of Wi-Fi network interface card at Centroid can be independent
View.The agreement flow that Centroid sends packet is as shown in figure 20.
Centroid is when having data to send, and whether first determine whether destination node is sensing node, if perceiving section
Put the related protocol flow with regard to being sent to sensing node data (as shown in Figure 20 left sides)；Otherwise with regard to being sent to remittance
The related protocol flow of poly- node data (as shown in Figure 20 right sides).
If destination node is sensing node, Centroid is it is first determined whether there is effective TD- to the sensing node
SCDMA network connections.If TD-SCDMA network be can use, then packet is directly just issued into this by TD-SCDMA interfaces
Sensing node.Otherwise, Centroid searches local data base, judges which aggregation node administration the sensing node belongs to, and
Whether inspection center's node possesses effectively TD-SCDMA network connection to the aggregation node.If TD-SCDMA network connection can
With packet will be sent to the aggregation node by Centroid by TD-SCDMA network first, then pass through Wi- by the aggregation node
Fi networks will be grouped relay forwarding and give purpose sensing node.If Centroid detects the TD-SCDMA for being found to the aggregation node
Network is unavailable, then Centroid directly detects whether effective Wi-Fi routes to purpose sensing node, if there is then
It will be directly grouped using the route and be sent to purpose sensing node by way of Wi-Fi multi-hop relays are transmitted.Otherwise, if do not had
There is effective route, then the route for calling HITR agreements to be created to the sensing node is recycled the route to send out by Centroid
Packet is sent to purpose sensing node.
If destination node is aggregation node, Centroid is it is first determined whether TD-SCDMA network can transmit packet extremely
The aggregation node.If set up, purpose aggregation node directly just will be sent packets to using TD-SCDMA network.Otherwise, center
Querying node local routing table determines whether the effective routing to the aggregation node by Wi-Fi interface.If set up, directly
Connect and send packet to purpose aggregation node using Wi-Fi interface and routing iinformation.Otherwise, Centroid calls HITR Routing Protocols
Route establishment is carried out, and packet is sent to purpose aggregation node by newly-established route.
Claims (6)
1. perceiving the TD-SCDMA coexisted merges Transmission system, wireless sensor network electromagnetic spectrum monitoring system with sensor network
System includes sensing node, aggregation node and Centroid；
The sensing node is used to be monitored electromagnetic spectrum, and the data of monitoring are transferred into aggregation node；
The aggregation node is used to report network topological diagram, and data are relayed and forwarded；
The Centroid is used to, as control node, issue instruction, collect, to network spectrum monitoring information
Topological diagram is generated；
The sensing node, aggregation node and Centroid are provided simultaneously with two kinds of transmission means of Wi-Fi and TD-SCDMA, data
It can be transmitted in Wi-Fi and TD-SCDMA hybrid network；
It is described perceive section use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
When sensing node is to when having effective TD-SCDMA connections between Centroid, data are directly passed through TD- by sensing node
SCDMA networks are sent to Centroid；
When sensing node is not to when having effective TD-SCDMA connections between Centroid, sensing node passes through packet
Wi-Fi interface, which is sent to, administers at its aggregation node；Aggregation node judges the TD- between aggregation node and Centroid
Whether SCDMA networks can use：If it is available, then the data of reception are sent to centromere by aggregation node by TD-SCDMA network
Point, if it is not then the data of reception are sent to center by aggregation node using Wi-Fi interface by way of multi-hop relay
Node；
Application layer does not differentiate between whether TD-SCDMA network can use, and will directly send packets to Internet；
In Internet provided with a network interface card scheduler, for judging whether TD-SCDMA network can use, so as to determine transmission packe
Network；
The Centroid use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
Centroid by two ports while listening for the data from TD-SCDMA and Wi-Fi network, when any one port
When having data arrival, the data of reception are stored in a container by Centroid, when upper procedure called data, Centroid
The data being stored at first in container are returned into upper procedure；
Characterized in that, when Centroid has packets to send, it is sensing node or convergence section that destination node is judged first
Point：
When destination node is aggregation node, then Centroid finds the corresponding TD-SCDMA network interface cards of purpose aggregation node first
Address, judges whether the TD-SCDMA network between aggregation node can use；It will be divided using TD-SCDMA network if available
Group is sent to aggregation node, the effective routing to the aggregation node by Wi-Fi network is otherwise determined whether there is, if effective
Route, just passes to the aggregation node by way of the route is through multi-hop relay by packet；Otherwise, Centroid can be called
HITR Routing Protocols carry out Route establishment；After Route establishment, then the aggregation node will be sent packets to by newly-built route；
When destination node is sensing node, then Centroid finds the corresponding TD-SCDMA network interface cards of purpose sensing node first
Address, judges whether the TD-SCDMA network interface cards of the sensing node can use by inquiring about database；Pass through TD- if available
Packet is directly passed to the sensing node by SCDMA networks, and otherwise Centroid lookup local data base, which is found, manages the perception
The convergent node information of node；Then Centroid finds the corresponding TD-SCDMA NIC address of the aggregation node, judges the remittance
Whether the TD-SCDMA network of poly- node can use, and writes the Wi-Fi NIC address of purpose sensing node if available and is grouped
The head of data, will send packets to the aggregation node, aggregation node passes through TD- by TD-SCDMA network after encapsulation
SCDMA network interface cards are received after grouped data, and the real purpose address of the datagram is obtained and original by parsing the datagram that receives
Datagram, original datagram is then sent to purpose sensing node using Wi-Fi network interface cards；Otherwise, if saved with affiliated convergence
TD-SCDMA network is unavailable between point, and whether Centroid is decided that has by Wi-Fi network to the effective of the sensing node
Route, if effective routing, just passes to the sensing node by way of the route is through multi-hop relay by packet；Otherwise,
Centroid can call HITR Routing Protocols to carry out Route establishment；After Route establishment, then by newly-built route by packet transmission
Give the sensing node.
2. perceive the TD-SCDMA coexisted according to claim 1 merges Transmission system with sensor network, it is characterised in that
Each sensing node only communicates with an aggregation node；The Centroid can obtain each sensing node and convergence is saved
The Wi-Fi addresses of point can obtain the convergence described in each sensing node with the corresponding situation of TD-SCDMA addresses, Centroid
The network topology of node.
3. perceive the TD-SCDMA coexisted according to claim 1 merges Transmission system with sensor network, it is characterised in that
Whether the sensing node and Centroid have path between node can be automatically determined according to current network state, and can
The type for determining the path is TD-SCDMA paths or Wi-Fi paths.
4. the TD-SCDMA coexisted is perceived according to claim 1 or 3 merges Transmission system with sensor network, its feature exists
In the transmission preferences selection TD-SCDMA transmission means of data, when TD links are not present, Wi-Fi is utilized by aggregation node
It is transmitted；Sensing node, aggregation node and Centroid can receive what is transmitted with TD-SCDMA and Wi-Fi two ways
Data.
5. perceive the TD-SCDMA coexisted according to claim 1 merges Transmission system with sensor network, it is characterised in that
When sensing node is transmitted using Wi-Fi, it will be grouped pass to the aggregation node for managing the sensing node first, saved by the convergence
Point carries out data storage, data fusion, feature extraction and forwarding.
6. perceive the TD-SCDMA coexisted according to claim 1 merges Transmission system with sensor network, it is characterised in that
The aggregation node use the course of work of two kinds of transmission means of TD-SCDMA and Wi-Fi for：
When the TD-SCDMA network of aggregation node can use, and the destination address being grouped, when being Centroid, aggregation node will
The packet of transmission is packaged into TD-SCDMA protocol packets, and destination address is set to the ground of Centroid TD-SCDMA network interface cards
Location, is then sent to Centroid by TD-SCDMA network；
When the TD-SCDMA network of aggregation node is unavailable, the packet that aggregation node will be sent is packaged into Wi-Fi agreements point
Group, is then sent to Centroid by Wi-Fi network.
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| CN105764062A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | System based on distributed wireless fusion network |
| CN105430684A (en) * | 2015-10-23 | 2016-03-23 | 南京邮电大学 | Simple hardware system for wireless spectrum refined grid monitoring and realization method thereof |
| CN107942716A (en) * | 2018-01-02 | 2018-04-20 | 潘永森 | A kind of smart home environment control system |
| 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 |
| CN114845337B (en) * | 2022-03-29 | 2023-04-25 | 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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