CN108934051A - Channel switches method of network entry and device - Google Patents
Channel switches method of network entry and device Download PDFInfo
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- CN108934051A CN108934051A CN201810782301.2A CN201810782301A CN108934051A CN 108934051 A CN108934051 A CN 108934051A CN 201810782301 A CN201810782301 A CN 201810782301A CN 108934051 A CN108934051 A CN 108934051A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
- H04W36/026—Multicasting of data during hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The present invention provides a kind of channel switching method of network entry and device, is applied to routing node.The described method includes: according to prefixed time interval in present channel broadcast transmission DIS message；It monitors whether to receive DIO message corresponding with DIS message；Judge whether receive DIO message in the broadcast time section that message broadcasting number is not more than default number of broadcast times according to DIO message monitoring result；If receiving DIO message in broadcast time section, the root node in wireless network is corresponded to DIO message and sends DAO message to access the wireless network；If not receiving DIO message in broadcast time section, present channel is switched over, and the step of jumping to broadcast transmission DIS message continues to execute.The method can voluntarily switch over present channel according to the real network environment of routing node, to access wireless network based on suitable channel, reduce manpower consumption, improve flexibility, precision and the efficiency of networking.
Description
Technical field
The present invention relates to RPL (Routing Protocol for Low-power and lossy networks, low function
Consumption lossy networks Routing Protocol) it is routed into network technology field, switch method of network entry and device in particular to a kind of channel.
Background technique
RPL Routing Protocol can provide a kind of general IPv6 routing mechanism and building for the lossy networks of low-power consumption low rate
Frame, so that having using the wireless network of RPL Routing Protocol composition, safety is good, supporting node is dynamically added, avoids ring
The advantages that road.But for now, routing node will be linked into some wireless network for using the building of RPL Routing Protocol
When, it needs after the channel configuration of routing node channel identical with root node respective channels in the wireless network artificially,
This is normally accessed wirelessly according to networking process corresponding to RPL Routing Protocol based on the channel after human configuration as the routing node
Network.There are human resources consumption due to the factor of human configuration channel for this routing node method of network entry greatly, networking low efficiency
And the problem that channel configuration error rate is high, and routing node is switching the wireless network being currently accessed and is accessing new wireless network
When also need to re-start human configuration channel so that the network switching network re-entry efficiency of routing node is extremely low, whole networking spirit
Activity is not high.
Summary of the invention
In order to overcome above-mentioned deficiency in the prior art, the purpose of the present invention is to provide a kind of channels to switch method of network entry
And device, the channel switching method of network entry can be voluntarily current to the routing node according to the real network environment of routing node
Channel switches over, and routing node is made to be based on suitable channel access wireless network, to reduce manpower consumption, improves routing node
Networking flexibility, networking precision and networking efficiency.
For method, the embodiment of the present invention provides a kind of channel switching method of network entry, is applied to routing node, the side
Method includes:
According to prefixed time interval, the broadcast transmission network information requests DIS message in present channel；
It monitors whether to receive the network information object DIO report from some wireless network corresponding with the DIS message
Text；
Judged to be not more than the broadcast time of default number of broadcast times in DIS message broadcasting number according to DIO message monitoring result
The DIO message whether is received in section；
If receiving the DIO message in the broadcast time section, the root in wireless network is corresponded to the DIO message
Node sends destination and notices object DAO message, to access the wireless network；
If not receiving the DIO message in the broadcast time section, present channel is switched over, and jumps to institute
It states and is continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
For device, the embodiment of the present invention provides a kind of channel switching networking device, is applied to routing node, the dress
It sets and includes:
DIS sending module, for broadcast transmission network information request DIS to be reported in present channel according to prefixed time interval
Text；
DIO monitoring modular receives the net from some wireless network corresponding with the DIS message for monitoring whether
Network information object DIO message；
DIO judgment module, it is wide no more than default in DIS message broadcasting number for being judged according to DIO message monitoring result
It broadcasts and whether receives the DIO message in the broadcast time section of number；
DAO sending module, if for receiving the DIO message in the broadcast time section, to the DIO message pair
The root node in wireless network is answered to send destination notice object DAO message, to access the wireless network；
Channel switching module, if for the DIO message not to be received in the broadcast time section, to present channel into
Row switching, and jump to and described continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
In terms of existing technologies, channel switching method of network entry and device provided in an embodiment of the present invention have with following
Beneficial effect: the channel switching method of network entry can be voluntarily current to the routing node according to the real network environment of routing node
Channel switches over, and routing node is made to be based on suitable channel access wireless network, to reduce manpower consumption, improves routing node
Networking flexibility, networking precision and networking efficiency.It is saved firstly, the method controls the routing according to prefixed time interval
Point broadcast transmission DIS message in present channel, so that root node or member node that some wireless network includes can be in institutes
It states and receives the DIS message under routing node present channel, and feeding back to the routing node includes the wireless network
The DIO message of the network information.Then, whether the method monitoring routing node receives corresponding with the DIS message
DIO message from some wireless network, to understand routing node real network environment corresponding under present channel.
Then, the DIO message monitoring result that the method is obtained according to monitoring DIO message reception condition, judges the institute under present channel
State routing node whether received in the broadcast time section that DIS message broadcasting number is not more than default number of broadcast times with it is described
The corresponding DIO message of DIS message.Finally, the method is determining that the routing node is inscribed in the broadcast time section
When receiving the DIO message, the routing node will be controlled and corresponded in wireless network according to present channel to the DIO message
Root node sends DAO message, to access the wireless network based on present channel；The method exists in the judgement routing node
When not receiving the DIO message in the broadcast time section, the routing node will be controlled, present channel is switched over, and
It is continued to execute based on the channel hopping after switching to the step of broadcast transmission DIS message, thus voluntarily according to the reality of routing node
Internet environment switches over the routing node present channel, and routing node is made to be based on suitable channel access wireless network,
To reduce manpower consumption, networking flexibility, networking precision and the networking efficiency of routing node are improved.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, present pre-ferred embodiments are cited below particularly,
And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the claims in the present invention protection scope, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is one of the flow diagram that channel provided in an embodiment of the present invention switches method of network entry.
Fig. 2 is the two of the flow diagram that channel provided in an embodiment of the present invention switches method of network entry.
Fig. 3 is the flow diagram of step S290 in Fig. 2.
Fig. 4 is the three of the flow diagram that channel provided in an embodiment of the present invention switches method of network entry.
Fig. 5 is one of the block diagram that channel provided in an embodiment of the present invention switches networking device.
Fig. 6 is the two of the block diagram that channel provided in an embodiment of the present invention switches networking device.
Fig. 7 is the three of the block diagram that channel provided in an embodiment of the present invention switches networking device.
Icon: 100- channel switches networking device；110-DIS sending module；120-DIO monitoring modular；130-DIO judgement
Module；140-DAO sending module；150- channel switching module；160- feedback monitoring module；170- feeds back judgment module；180-
Analysis judgment module；190- network access module；101- parameter configuration module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is please referred to, is one of the flow diagram of channel switching method of network entry provided in an embodiment of the present invention.In this hair
In bright embodiment, the channel switching method of network entry is applied to routing node, for voluntarily according to the reality of the routing node
Internet environment switches over the routing node present channel, so that the routing node is based on suitable channel access and adopts
The wireless network built with RPL Routing Protocol improves the routing node to reduce the manpower consumption that the routing node networks
Networking flexibility, networking precision and networking efficiency, wherein the routing node can be the routing for meeting RPL Routing Protocol
Equipment.The detailed process and step of channel shown in FIG. 1 switching method of network entry are described in detail below.
Step S210, according to prefixed time interval in present channel broadcast transmission DIS message.
In the present embodiment, the network information requests DIS (DODAG Information Solicitation, DODAG network
Structural network information request) message indicates routing node access wireless network and obtains asking for the radio network information
It asks.The routing node according to prefixed time interval DIS message described in broadcast transmission under present channel, it is expected that some is adopted
With in the wireless network of RPL Routing Protocol root node or member node can be received under the routing node present channel
The DIS message.Wherein, the prefixed time interval can be 1 second, be also possible to 1.5 seconds, can also be 2 seconds, when specific
Between interval numerical value can carry out different configurations according to actual needs.
Step S220 monitors whether to receive the DIO message from some wireless network corresponding with the DIS message.
In the present embodiment, network information object DIO (DODAG Information Object, DODAG network structure net
Network information object) message indicates to save to the routing after some wireless network receives the DIS message from the routing node
What point was fed back includes the data of the network information of the wireless network.If some is using in the wireless network of RPL Routing Protocol
Root node or member node the DIS message, the wireless network can be received under the routing node present channel
In root node or member node will send corresponding with DIS message DIO message to the routing node.The routing section
Point can understand the routing node and exist by way of monitoring and itself whether receiving DIO message corresponding with the DIS message
The wireless network being had access in corresponding real network environment with the presence or absence of the routing node under present channel.
Step S230 judges to be not more than default number of broadcast times in DIS message broadcasting number according to DIO message monitoring result
Whether the DIO message is received in broadcast time section.
In the present embodiment, the routing node is when present channel is according to prefixed time interval broadcast transmission DIS message,
DIS message broadcasting number under present channel can be recorded.The routing node is according to the DIS message broadcasting number of record
And the DIO message monitoring result that monitoring DIO message reception condition obtains judges the routing node in the DIS message broadcasting
Whether number receives DIO message in the broadcast time section no more than default number of broadcast times.Wherein the broadcast time section is routing
Node is exclusively used in the report of DIS described in broadcast transmission as one of starting point using the time point for starting to send DIS message under present channel
The period of text, the maximum time length of the broadcast time section be the numerical value that is obtained after default number of broadcast times subtracts once multiplied by
Time numerical value corresponding to prefixed time interval, the default number of broadcast times can be 3 times, are also possible to 4 times, can also be 5
Secondary, specific number numerical value can carry out different configurations according to actual needs.
Step S240 corresponds to the root node in wireless network to the DIO message and sends DAO message, to access the nothing
Gauze network.
In the present embodiment, the routing node is executing the step S230, and determines the routing node in institute
When stating DIS message broadcasting number no more than the DIO message is received in the broadcast time section for presetting number of broadcast times, the routing
Node executes step S240 for corresponding.At this point, being deposited in routing node real network environment corresponding under present channel
In the wireless network that the routing node has access to, which is the wireless network for sending the DIO message.Wherein
Notice object DAO (object that Destination Advertisement Object, DODAG network connects mesh) message in destination
Indicate that the routing node access sends the networking license request of the wireless network of the DIO message, the routing node passes through
The mode that the root node in wireless network sends DAO message is corresponded to the DIO message, request is based on described in present channel access
Wireless network.The routing node can root node directly into the wireless network send the DAO message, can also be to described
Member node in wireless network sends the DAO message so that the DAO message is transmitted to the nothing by the member node
Root node in gauze network.
Step S250, switches over channel.
In the present embodiment, the routing node is executing the step S230, and determines the routing node in institute
When stating DIS message broadcasting number no more than the DIO message is not received in the broadcast time section for presetting number of broadcast times, the road
Step S250 is executed by corresponding by node.At this point, in routing node real network environment corresponding under present channel
There is no the wireless network that the routing node has access to, the routing node will switch over itself present channel, and
The step S210 is jumped to after having switched channel to send out according to broadcasting in prefixed time interval channel after handover
DIS message is sent to continue to execute, so that it is guaranteed that the routing node can be voluntarily according to the real network ring of the routing node
Border switches over the routing node present channel, and the routing node is enable to be based on suitable channel access using the road RPL
The wireless network built by agreement reduces the manpower consumption that the routing node networks, and improves the networking spirit of the routing node
Activity, networking precision and networking efficiency.
It referring to figure 2., is the two of the flow diagram that channel provided in an embodiment of the present invention switches method of network entry.In this hair
In bright embodiment, the channel switching method of network entry can also include:
Step S260 monitors whether to receive networking corresponding with the DAO message feedback report from the root node
Text.
In the present embodiment, the root node in wireless network is in the DAO report for receiving the routing node from desired networking
Wen Hou will determine whether that the routing node is linked into the wireless network by searching for the access net address table of self record
Network, and according to the networking feedback report for judging that structure is used to indicate to allow to network or does not allow to network to routing node feedback
Text, wherein record has the currently corresponding channel information of the root node in the wireless network in the feedback message that networks.
The routing node in the present embodiment is not more than in the judgement routing node in the DIS message broadcasting number
The DIO message is received in the broadcast time section of default number of broadcast times, and after performing above-mentioned steps S240, monitoring can be passed through
Itself whether receive network corresponding with the DAO message from the root node and feed back the mode of message, described in understanding
Feedback of the wireless network to the routing node.
Step S270, according to networking feedback monitoring result judge in the corresponding feedback time section of default feedback duration whether
Receive the networking feedback message.
In the present embodiment, the feedback time section is that the routing node starts to send DAO report under present channel
The time point of text is that one of starting point is exclusively used in the period for waiting the root node feed back the feedback message that networks, institute
Stating the corresponding default feedback duration of feedback time section can be 3 minutes, can be 4 minutes, be also possible to 3.5 minutes, specifically
Duration numerical value can carry out different configurations according to actual needs.The routing node obtains indicating institute in the execution step S260
It, will be according to networking feedback monitoring result judgement after the networking feedback monitoring result for stating the feedback message reception condition that networks
Whether routing node receives the root node in the wireless network in the corresponding feedback time section of the preset duration
Message is fed back in the networking.
Step S280 parses networking feedback message, and judges that the wireless network is according to parsing result
It is no that the routing node is allowed to network.
In the present embodiment, the routing node is executing the step S270, and determines the routing node pre-
If receive the networking feedback message in the corresponding feedback time section of feedback duration, correspondence is executed step by the routing node
Rapid S280.At this point, the routing node is parsed to obtain corresponding parsing by feeding back message to the networking received
As a result, and judging whether the wireless network allows the routing node to network according to the parsing result.
In embodiments of the present invention, the routing node is executing the step S270, and determines the routing node
When not receiving the networking feedback message in the corresponding feedback time section of default feedback duration, the routing node will be corresponded to
Execute step S250.At this point, the routing node will switch over itself present channel, and jumped to after having switched channel
The step S210 to be continued to execute according to broadcast transmission DIS message in prefixed time interval channel after handover, from
And ensuring the routing node voluntarily can currently believe the routing node according to the real network environment of the routing node
Road switches over, the wireless network for enabling the routing node to use RPL Routing Protocol to build based on suitable channel access.
Step S290, control the routing node according to wireless network described in the consistent channel access of the root node.
In the present embodiment, the routing node is executing the step S280, and described in being determined according to parsing result
When wireless network allows the routing node to network, the routing node executes step S290 for corresponding.At this point, the routing section
Point will control itself according to the consistent channel access of the root node to the wireless network, to improve the routing node
Communication stability and communication accuracy in the communication in wireless networks.
It optionally, referring to figure 3., is the flow diagram of step S290 in Fig. 2.In the present embodiment, the step
S290 includes sub-step S291, sub-step S292 and sub-step S293.
Sub-step S291, according to the parsing result judge the routing node present channel whether with the root node pair
Answer channel identical.
In the present embodiment, the routing node receive network feedback message, and to networkings feedback message into
Row parsing obtains networking feedback message and corresponds in wireless network the channel information of root node and the wireless network to the routing
The networking permission status of node.The routing node is according to the channel information corresponding with the root node in the parsing result
Judge that whether corresponding with the root node routing node present channel channel be identical.
Sub-step S292 is directly accessed the corresponding wireless network of the root node.
In the present embodiment, the routing node is executing the step S291, and determines that the routing node is current
When channel channel corresponding with the root node is identical, the routing node executes sub-step S292 for corresponding.At this point, the road
It will be directly linked into the corresponding wireless network of the root node with present channel by node.
The routing node present channel is adjusted to the root node respective channels by sub-step S293, and with adjustment after
Channel access described in the corresponding wireless network of root node.
In the present embodiment, the routing node is executing the step S291, and determines that the routing node is current
When corresponding with the root node channel difference of channel, the routing node executes sub-step S293 for corresponding.At this point, the road
Itself present channel will be adjusted with the root node respective channels by node, the routing node present channel tune
Whole is the root node respective channels, thus according to channel access adjusted to the corresponding wireless network of the root node
In.
In embodiments of the present invention, the routing node is executing the step S280, and is determined according to parsing result
When the wireless network does not allow the routing node to network, the routing node executes step S250 for corresponding.At this point, described
Routing node by into the wireless network root node send off-network message, with inform the root node itself need disconnect with
The root node corresponds to the connection between wireless network.Wherein, the root that the routing node can directly into the wireless network
Node sends the off-network message, and the off-network message can also be sent by the member node into the wireless network so that institute
State the root node that the off-network message is transmitted in the wireless network by member node.
The routing node will switch over itself present channel after completing to the transmission of the off-network message, and
The step S210 is jumped to after having switched channel to send out according to broadcasting in prefixed time interval channel after handover
DIS message is sent to continue to execute, so that it is guaranteed that the routing node can be voluntarily according to the real network ring of the routing node
Border switches over the routing node present channel, and the routing node is enable to be based on suitable channel access using the road RPL
The wireless network built by agreement.
It referring to figure 4., is the three of the flow diagram that channel provided in an embodiment of the present invention switches method of network entry.In this hair
In bright embodiment, before the step S210, the channel switching method of network entry can also include step S209.
Step S209 configures prefixed time interval, default number of broadcast times and default feedback duration.
In the present embodiment, when the corresponding prefixed time interval of the routing node, default number of broadcast times and default feedback
Length can be carried out according to actual needs different by the manufacturer of the routing node and/or the user of service of the routing node
Configuration.
It referring to figure 5., is one of the block diagram of channel switching networking device 100 provided in an embodiment of the present invention.?
In the embodiment of the present invention, the channel switching networking device 100 is applied to the routing node, for voluntarily according to the road
The routing node present channel is switched over by the real network environment of node, so that the routing node is based on suitable
The wireless network that channel access uses RPL Routing Protocol to build.Wherein, the channel switching networking device 100 may include DIS
Sending module 110, DIO monitoring modular 120, DIO judgment module 130, DAO sending module 140 and channel switching module 150.
The DIS sending module 110, for the broadcast transmission network information to be asked in present channel according to prefixed time interval
Seek DIS message.
In the present embodiment, the DIS sending module 110 can execute step S210 shown in Fig. 1, specific to execute
Process can refer to above to the detailed description of step S210.
The DIO monitoring modular 120, it is corresponding with the DIS message wireless from some for monitoring whether to receive
The network information object DIO message of network.
In the present embodiment, the DIO monitoring modular 120 can execute step S220 shown in Fig. 1, specific to execute
Process can refer to above to the detailed description of step S220.
The DIO judgment module 130, for judging to be not more than in DIS message broadcasting number according to DIO message monitoring result
The DIO message whether is received in the broadcast time section of default number of broadcast times.
In the present embodiment, the DIO judgment module 130 can execute step S230 shown in Fig. 1, specific to execute
Process can refer to above to the detailed description of step S230.
The DAO sending module 140, if for receiving the DIO message in the broadcast time section, to described
DIO message corresponds to the root node in wireless network and sends destination notice object DAO message, to access the wireless network.
In the present embodiment, the DAO sending module 140 can execute step S240 shown in Fig. 1, specific to execute
Process can refer to above to the detailed description of step S240.
The channel switching module 150, if for not receiving the DIO message in the broadcast time section, to working as
Preceding channel switches over, and jump to it is described according to prefixed time interval in present channel the step of broadcast transmission DIS message
It continues to execute.
In the present embodiment, the channel switching module 150 can execute step S250 shown in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S250.
Fig. 6 is please referred to, is the two of the block diagram of channel switching networking device 100 provided in an embodiment of the present invention.?
In the embodiment of the present invention, the channel switching networking device 100 can also include feedback monitoring module 160, feedback judgment module
170, analysis judgment module 180 and network access module 190.
The feedback monitoring module 160, for monitor whether to receive from the root node with the DAO message pair
The networking feedback message answered.
In the present embodiment, the feedback monitoring module 160 can after the DAO sending module 140 executes corresponding step
To execute step S260 shown in Fig. 2, specific implementation procedure be can refer to above to the detailed description of step S260.
The feedback judgment module 170, it is corresponding in default feedback duration for being judged according to networking feedback monitoring result
Whether the networking feedback message is received in feedback time section.
In the present embodiment, the feedback judgment module 170 can after the feedback monitoring module 160 executes corresponding step
To execute step S270 shown in Fig. 2, specific implementation procedure be can refer to above to the detailed description of step S270.
The analysis judgment module 180, if for receiving the networking feedback message in the feedback time section, it is right
The networking feedback message is parsed, and judges whether the wireless network allows the routing node to enter according to parsing result
Net.
In the present embodiment, the analysis judgment module 180 can specifically be executed with step S280 shown in Fig. 2
Journey can refer to above to the detailed description of step S280.
The network access module 190, if for received in the feedback time section networking feedback message and
The wireless network allows the routing node to network, and controls the routing node and connects according to the consistent channel of the root node
Enter the wireless network.
In the present embodiment, the network access module 190 controls the routing node according to consistent with the root node
Channel access described in the mode of wireless network include:
Judge whether the routing node present channel is identical as the root node respective channels according to the parsing result；
If they are the same, then it is directly accessed the corresponding wireless network of the root node；
If it is different, the routing node present channel is then adjusted to the root node respective channels, and with adjusted
The corresponding wireless network of root node described in channel access.
Wherein, the network access module 190 can execute son shown in step S290 and Fig. 3 shown in Fig. 2
Step S291, sub-step S292 and sub-step S293, specific implementation procedure can refer to above to step S290, sub-step
The detailed description of S291, sub-step S292 and sub-step S293.
The channel switching module 150, if being also used to receive the networking feedback message in the feedback time section
And the wireless network does not allow the routing node to network, the root node into the wireless network sends off-network report
Text switches over present channel, and jump to it is described according to prefixed time interval in present channel broadcast transmission DIS message
The step of continue to execute.
The channel switching module 150, if being also used to not receive the networking feedback report in the feedback time section
Text switches over present channel, and jump to it is described according to prefixed time interval in present channel broadcast transmission DIS message
The step of continue to execute.
Fig. 7 is please referred to, is the three of the block diagram of channel switching networking device 100 provided in an embodiment of the present invention.?
In the embodiment of the present invention, the channel switching networking device 100 can also include parameter configuration module 101.
The parameter configuration module 101, for being carried out to prefixed time interval, default number of broadcast times and default feedback duration
Configuration.
In the present embodiment, the parameter configuration module 101 can execute step S209 shown in Fig. 4, specifically hold
Row process can refer to above to the detailed description of step S209.
In conclusion switching in method of network entry and device in channel provided in an embodiment of the present invention, the channel is switched in
Network method can voluntarily switch over the routing node present channel according to the real network environment of routing node, save routing
Point is based on suitable channel access wireless network, to reduce manpower consumption, improves the networking flexibility of routing node, networks precisely
Degree and networking efficiency.
Firstly, the method controls routing node broadcast transmission DIS in present channel according to prefixed time interval
Message, so that root node or member node that some wireless network includes can receive institute under the routing node present channel
It states DIS message, and includes the DIO message of the network information of the wireless network to routing node feedback.Then, described
Method monitors whether the routing node receives the DIO message from some wireless network corresponding with the DIS message, with
Understand routing node real network environment corresponding under present channel.Then, the method is according to monitoring DIO message
The DIO message monitoring result that reception condition obtains, judge the routing node under present channel DIS message broadcasting number not
Greater than whether receiving the DIO message corresponding with the DIS message in the broadcast time section of default number of broadcast times.Finally,
The method will control the road when determining that the routing node receives the DIO message in the broadcast time section
The root node in wireless network is corresponded to the DIO message according to present channel from node and sends DAO message, based on current letter
Road accesses the wireless network；The method is determining that it is described that the routing node does not receive in the broadcast time section
When DIO message, the routing node will be controlled, present channel is switched over, and sent out based on the channel hopping after switching to broadcast
The step of sending DIS message continues to execute, to voluntarily currently be believed according to the real network environment of routing node the routing node
Road switches over, and so that routing node is based on suitable channel access wireless network and improves routing node to reduce manpower consumption
Networking flexibility, networking precision and networking efficiency.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of channel switches method of network entry, which is characterized in that be applied to routing node, which comprises
According to prefixed time interval, the broadcast transmission network information requests DIS message in present channel；
It monitors whether to receive the network information object DIO message from some wireless network corresponding with the DIS message；
Judged in the broadcast time section that DIS message broadcasting number is not more than default number of broadcast times according to DIO message monitoring result
Whether the DIO message is received；
If receiving the DIO message in the broadcast time section, the root node in wireless network is corresponded to the DIO message
It sends destination and notices object DAO message, to access the wireless network；
If not receiving the DIO message in the broadcast time section, present channel is switched over, and jump to it is described by
It is continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
2. the method according to claim 1, wherein being corresponded in wireless network described to the DIO message
After root node sends destination notice object DAO message, the method also includes:
Monitor whether to receive networking corresponding with the DAO message feedback message from the root node；
According to networking feedback monitoring result judge whether to receive in the corresponding feedback time section of default feedback duration it is described enter
Net feedback message；
If receiving the networking feedback message in the feedback time section, networking feedback message is parsed, and
Judge whether the wireless network allows the routing node to network according to parsing result；
If receiving the networking feedback message in the feedback time section and the wireless network allowing the routing node
Network, control the routing node according to wireless network described in the consistent channel access of the root node.
3. method according to claim 2, which is characterized in that the control routing node according to the root node one
The step of wireless network described in the channel access of cause includes:
Judge whether the routing node present channel is identical as the root node respective channels according to the parsing result；
If they are the same, then it is directly accessed the corresponding wireless network of the root node；
If it is different, the routing node present channel is then adjusted to the root node respective channels, and with channel adjusted
Access the corresponding wireless network of the root node.
4. according to the method in claim 2 or 3, which is characterized in that the method also includes:
If receiving the networking feedback message in the feedback time section and the wireless network not allowing the routing to save
Point networks, and the root node into the wireless network sends off-network message, switches over to present channel, and jump to institute
It states and is continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
If not receiving the networking feedback message in the feedback time section, present channel is switched over, and jumps to
It is described to be continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
6. according to the method described in claim 5, it is characterized in that, which comprises
Prefixed time interval, default number of broadcast times and default feedback duration are configured.
7. a kind of channel switches networking device, which is characterized in that be applied to routing node, described device includes:
DIS sending module, for the broadcast transmission network information to request DIS message in present channel according to prefixed time interval；
DIO monitoring modular receives the network letter from some wireless network corresponding with the DIS message for monitoring whether
Cease object DIO message；
DIO judgment module, for being judged in DIS message broadcasting number according to DIO message monitoring result no more than default broadcast time
Whether the DIO message is received in several broadcast time sections；
DAO sending module, if corresponding to nothing to the DIO message for receiving the DIO message in the broadcast time section
Root node in gauze network sends destination and notices object DAO message, to access the wireless network；
Channel switching module, if being cut for not receiving the DIO message in the broadcast time section to present channel
It changes, and jumps to and described continued to execute the step of broadcast transmission DIS message in present channel according to prefixed time interval.
8. device according to claim 7, which is characterized in that described device further include:
Feedback monitoring module, it is anti-for monitoring whether to receive the networking corresponding with the DAO message from the root node
Present message；
Judgment module is fed back, for judging in the corresponding feedback time section of default feedback duration according to networking feedback monitoring result
Whether the networking feedback message is received；
Analysis judgment module, if networking instead for receiving the networking feedback message in the feedback time section to described
Feedback message is parsed, and judges whether the wireless network allows the routing node to network according to parsing result；
Network access module, if for receiving the networking feedback message and the wireless network in the feedback time section
Allow the routing node to network, control the routing node according to wireless network described in the consistent channel access of the root node
Network.
9. device according to claim 8, which is characterized in that
The channel switching module, if being also used to receive the networking feedback message and the nothing in the feedback time section
Gauze network does not allow the routing node to network, and the root node into the wireless network sends off-network message, to current
Channel switches over, and jump to it is described according to prefixed time interval in present channel the step of broadcast transmission DIS message after
It is continuous to execute；
The channel switching module, if being also used to not receive networking feedback message in the feedback time section, to working as
Preceding channel switches over, and jump to it is described according to prefixed time interval in present channel the step of broadcast transmission DIS message
It continues to execute.
10. device according to claim 9, which is characterized in that described device further include:
Parameter configuration module, for being configured to prefixed time interval, default number of broadcast times and default feedback duration.
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