CN103582150B - Access the method, apparatus and wireless routing device of 802.15.4 networks - Google Patents
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Abstract
The invention discloses the method, apparatus and wireless routing device of access 802.15.4 networks, methods described includes：Channel where scanning father node by the first radio frequency interface, pass through channel access 802.15.4 networks where father node；Selection is scanned to idle channel by least one second radio frequency interface, passes through selected channel access 802.15.4 networks.Pass through the method, apparatus and wireless routing device of access 802.15.4 networks disclosed by the invention, channel access 802.15.4 networks where the father node are passed through by the first radio frequency interface, selected channel access 802.15.4 networks are passed through by least one second radio frequency interface, add the channel quantity of access 802.15.4 networks, thus, prevent wireless network data from colliding, ensure channel open, prevent data re-transmitting.
Description
Technical field
The present invention relates to internet of things field, more particularly to the method, apparatus of access 802.15.4 networks and without circuit
By equipment.
Background technology
With flourishing for technology of Internet of things, based on 802.15.4（That is IEEE is used for the thing of low-speed wireless personal area network
Manage layer and media access control layer specification）The wireless sensor network of agreement has been obtained for extensive use, in 802.15.4 nets
What is played a key effect in network is exactly 802.15.4 wireless routers.
In the prior art, the radio frequency interface on the wireless routing device of current 802.15.4 networks is operated in a channel
On.When the interstitial content for accessing wireless senser reaches certain magnitude, just occurred wirelessly by a channel transmission data
Network data is collided, and phenomena such as causing channel congestion, data re-transmitting, is not only reduced data transmission credibility, is also constrained whole
The life cycle of individual network, it can not really meet the access 802.15.4 networks of extensive node.At present in wireless routing device
One radio frequency interface of upper setting, and a gain directional antenna can only be supported to carry out telecommunication, or an omnidirectional
Antenna carries out gamut covering closely, can not take into account gain directional antenna and omnidirectional antenna.When a wide range of covering of needs
When can only by improve wireless router layout density, which in turns increases the complexity of network, while also improve cost.
The content of the invention
In view of this, the embodiments of the invention provide access 802.15.4 networks method, apparatus and wireless routing device,
There is wireless network data collision to solve the data of channel, the problem of causing channel congestion, data re-transmitting.
On the one hand, the embodiments of the invention provide a kind of method of access 802.15.4 networks, including：
Channel where scanning father node by the first radio frequency interface, pass through channel access where the father node
802.15.4 network；
Selection is scanned to idle channel by least one second radio frequency interface, passes through selected channel access
802.15.4 network.
Preferably, it is described that father node place channel is scanned by the first radio frequency interface, pass through channel where the father node
Access 802.15.4 networks include：
The gain directional antenna supported by first radio frequency interface is scanned to each channel, obtains scanning system
Number；
According to the scan fraction, channel where the father node of first radio frequency interface is selected, and save by the father
Channel access 802.15.4 networks where point.
Preferably, it is described by channel access 802.15.4 networks where the father node after also include：
Adjacency list is initialized, the day wire size and described first that the gain directional antenna is recorded in the adjacency list are penetrated
The interface number of frequency interface.
Preferably, it is described that selection is scanned to idle channel by least one second radio frequency interface, by selected
Channel access 802.15.4 networks include：
By each antenna of at least one each self-supporting of second radio frequency interface with different frequencies to each free time
Channel is scanned, and records each idle channel scan fraction；
According to each idle channel scan fraction, each second radio frequency interface selection idle channel access
802.15.4 network.
Preferably, it is described idle according to each idle channel scan fraction, each second radio frequency interface selection
Also include after channel access 802.15.4 networks：
In the adjacency list record access each second radio frequency interface of the idle channel interface number and with
Access the day wire size of each antenna of each second radio frequency interface support of the idle channel.
Preferably, channel access 802.15.4 is passed through in first radio frequency interface and each second radio frequency interface
After network, in addition to：
The gain directional antenna supported by first radio frequency interface and each second radio frequency interface
Any wireless network services are provided with omnidirectional antenna.
Correspond the embodiment of the present invention and additionally provide a kind of device of access 802.15.4 networks, including：
First radio frequency interface AM access module, for channel where scanning father node by the first radio frequency interface, by described
Channel access 802.15.4 networks where father node；
Second radio frequency interface AM access module, for being scanned choosing to idle channel by least one second radio frequency interface
Select, pass through selected channel access 802.15.4 networks.
Preferably, the first radio frequency interface AM access module includes：
First scan channel module, for the gain directional antenna supported by first radio frequency interface to each letter
Road is scanned, and obtains scan fraction；
First channel selection block, for according to the scan fraction, the father node institute of selection first radio frequency interface
In channel, and pass through channel access 802.15.4 networks where the father node.
Preferably, in addition to：
First logging modle, for initializing adjacency list, the gain directional antenna is recorded in the adjacency list
The interface number of its wire size and first radio frequency interface.
Preferably, the second radio frequency interface scan module includes：
Second channel scan module, for each antenna by least one each self-supporting of second radio frequency interface with
Different frequencies is scanned to each idle channel, records each idle channel scan fraction；
Second channel selecting module, for being connect according to each idle channel scan fraction, each second radio frequency
Mouth selection idle channel access 802.15.4 networks.
Preferably, the device of the access 802.15.4 networks, in addition to：
Second logging modle, each second radio frequency for the record access idle channel in the adjacency list
The day of the interface number of interface and each antenna supported with accessing each second radio frequency interface of the idle channel
Wire size.
Preferably, the device of the access 802.15.4 networks, in addition to：
Network service module, for the institute supported by first radio frequency interface and each second radio frequency interface
State gain directional antenna and omnidirectional antenna provides any wireless network services.
Present invention also offers a kind of wireless routing device, including the first radio frequency interface and at least one second radio frequency to connect
Mouthful, the device of above-mentioned access 802.15.4 networks.
Preferably, first radio frequency interface supports 2 gain directional antennas, or 1 gain directional antenna
With 1 omnidirectional antenna；
Second radio frequency interface supports 2 gain directional antennas, described in 1 gain directional antenna and 1
Omnidirectional antenna or 2 omnidirectional antennas.
The method, apparatus and wireless routing device of access 802.15.4 networks provided in an embodiment of the present invention, have as follows
Feature：
By the first radio frequency interface by channel access 802.15.4 networks where the father node, pass through at least one the
Two radio frequency interfaces add the channel quantity of access 802.15.4 networks by selected channel access 802.15.4 networks,
Thus, prevent wireless network data from colliding, ensure channel open, prevent data re-transmitting.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the schematic flow sheet for the method that the present invention first implements a kind of access 802.15.4 networks provided；
Fig. 2 is the structural representation for the device that the present invention second implements a kind of access 802.15.4 networks provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
The method, apparatus and wireless routing device of access 802.15.4 networks disclosed by the invention are based on IPV6
（Internet Protocol Version6）Internet protocol.IPv6 is IETF（Internet Engineering Task
Force, Internet Engineering Task group）Design be used for substitute current edition IP agreement（IPv4）IP of future generation（Internet
Protocol, the agreement interconnected between network）Agreement.
Embodiment one
The embodiment of the present invention one discloses a kind of method of access 802.15.4 networks, as shown in figure 1, including：
Step S101, channel where scanning father node by the first radio frequency interface, pass through channel access where father node
802.15.4 network.
In step S101, channel where scanning father node by the first radio frequency interface, connect by channel where father node
The step of entering 802.15.4 networks be specially：
First, the gain directional antenna supported by the first radio frequency interface is scanned to each channel, is scanned
Coefficient.
Need to illustrate, scan fraction includes but is not limited to：Signal intensity.Combined by the first radio frequency interface high
Gain directional antennas, it is possible to achieve the long-distance transmissions of ten kilometers of ranks, effectively extend 802.15.4 network coverage model
Enclose,
Secondly, according to scan fraction, channel where the father node of the first radio frequency interface is selected, and by believing where father node
Road accesses 802.15.4 networks.
Need to go on to say, father node can be optimal father node.
The embodiment of the present invention provides a preferred embodiment, the channel access 802.15.4 nets where by father node
Also include after network：
Adjacency list is initialized, the day wire size of gain directional antenna and the interface of the first radio frequency interface are recorded in adjacency list
Number.
Step S102, selection is scanned to idle channel by least one second radio frequency interface, by selected
Channel access 802.15.4 networks.
In step s 102, selection is scanned to idle channel by least one second radio frequency interface, by selected
The channel access 802.15.4 networks selected specifically include：
First, by each antenna of at least one each self-supporting of second radio frequency interface with different frequencies to each free time
Channel is scanned, and records each idle channel scan fraction.
In actual applications, such as to 11 to 26 channels be scanned, the second radio frequency interface support antenna with every
5MHz centre frequency, channel is scanned with 2.405GHz to 2.480GHz frequency respectively.
Secondly, according to each idle channel scan fraction, each second radio frequency interface selection idle channel access
802.15.4 network.
Need to illustrate, the first radio frequency interface and each second radio frequency interface pass through radio frequency chip
The mode that AT86RF231 and radio-frequency front-end RFFM6201SR are combined realizes remote data transfer, while radio-frequency front-end branch
Diversity antenna technology is held, the first radio frequency interface and each second radio frequency interface can support two antennal interfaces.First radio frequency connects
Mouth supports at least one gain directional antenna, and each second radio frequency interface can match high-gain orientation day according to actual conditions
Line or omnidirectional antenna, for connecting port in the networking of long-distance transmissions, support orientation high-gain aerial；For closely covering
For providing the interface of access service, omnidirectional antenna or plate aerial are supported.
The embodiment of the present invention provides a preferred embodiment, and according to each idle channel scan fraction, each second penetrates
Also include after frequency interface selection idle channel access 802.15.4 networks：
Record accesses the interface number of each second radio frequency interface of idle channel and with accessing idle channel in adjacency list
Each second radio frequency interface support each antenna day wire size.
The embodiment of the present invention one, which also provides a preferred embodiment, also to be included：
The gain directional antenna and omnidirectional antenna supported by the first radio frequency interface and each second radio frequency interface carry
For any wireless network services.
Need to go on to say, the gain directional antenna that the first radio frequency interface and each second radio frequency interface are supported
The day wire size of gain directional antenna, the interface number of the first radio frequency interface, access idle channel are have recorded with omnidirectional antenna foundation
Each second radio frequency interface interface number and each antenna for being supported with accessing each second radio frequency interface of idle channel
The adjacency list of its wire size provides any wireless network services.
By a kind of method of access 802.15.4 networks disclosed in the embodiment of the present invention one, led to by the first radio frequency interface
Channel access 802.15.4 networks where crossing father node, pass through selected channel access by least one second radio frequency interface
802.15.4 network, the channel quantity of access 802.15.4 networks is added, thus, prevents wireless network data from colliding, ensured
Channel open, prevent data re-transmitting.
Embodiment two
The embodiment of the present invention two discloses a kind of device of access 802.15.4 networks, as shown in Fig. 2 including：First penetrates
The AM access module 1 of frequency interface and the second radio frequency interface AM access module 2.
First radio frequency interface AM access module 1, for channel where scanning father node by the first radio frequency interface, saved by father
Channel access 802.15.4 networks where point.
Second radio frequency interface AM access module 2, for being scanned by least one second radio frequency interface to idle channel
Selection, passes through selected channel access 802.15.4 networks.
First radio frequency interface AM access module 1 includes：
First scan channel module 11, for the gain directional antenna supported by the first radio frequency interface to each channel
It is scanned, obtains scan fraction；
First channel selection block 12, for foundation scan fraction, channel where the father node of the first radio frequency interface is selected,
And pass through channel access 802.15.4 networks where father node.
The embodiment of the present invention two provides a kind of preferred embodiment, and the first radio frequency interface AM access module 1 also includes, and first
Logging modle 13, for initializing adjacency list, record the day wire size of gain directional antenna in adjacency list and the first radio frequency connects
The interface number of mouth.
Second radio frequency interface scan module 2 includes：
Second channel scan module 21, for each antenna by least one each self-supporting of second radio frequency interface with not
Same frequency is scanned to each idle channel, records each idle channel scan fraction；
Second channel selecting module 22, for according to each idle channel scan fraction, each second radio frequency interface selection
Idle channel accesses 802.15.4 networks.
The embodiment of the present invention two provides a kind of preferred embodiment, and the first radio frequency interface AM access module 1 also includes, and second
Logging modle 23, for the interface number of each second radio frequency interface of record access idle channel in adjacency list and with accessing sky
The day wire size for each antenna that each second radio frequency interface of idle channel is supported.
The embodiment of the present invention two provides a kind of preferred embodiment, and the device of access 802.15.4 networks also includes：Net
Network service module 3, for the gain directional antenna supported by the first radio frequency interface and each second radio frequency interface and complete
Any wireless network services are provided to antenna.
By a kind of device of access 802.15.4 networks disclosed in the embodiment of the present invention two, led to by the first radio frequency interface
Channel access 802.15.4 networks where crossing father node, pass through selected channel access by least one second radio frequency interface
802.15.4 network, the channel quantity of access 802.15.4 networks is added, thus, prevents wireless network data from colliding, ensured
Channel open, prevent data re-transmitting.
Embodiment three
The embodiment of the present invention three discloses a kind of wireless routing device, including the first radio frequency interface and at least one second is penetrated
The device of the access 802.15.4 networks of any one provided in frequency interface, in addition to the embodiment of the present invention two.
Wherein, the first radio frequency interface supports 2 gain directional antennas, or 1 gain directional antenna and 1 omnidirectional
Antenna；Second radio frequency interface supports 2 gain directional antennas, 1 gain directional antenna and 1 omnidirectional antenna or 2
Omnidirectional antenna.
Need to illustrate is that the first radio frequency interface and each second radio frequency interface pass through wireless chip AT86RF231
Remote data transfer is realized with the radio-frequency front-end RFFM6201SR modes being combined, while radio-frequency front-end supports antenna diversity
Technology, the first radio frequency interface and each second radio frequency interface can support two antennal interfaces.First radio frequency interface is supported at least
One gain directional antenna, each second radio frequency interface can match gain directional antenna or omnidirectional according to actual conditions
Antenna, for connecting port in the networking of long-distance transmissions, support orientation high-gain aerial；Connect for closely covering for offer
Enter the interface of service, support omnidirectional antenna or plate aerial.
A kind of wireless routing device provided by the embodiment of the present invention three, father node institute is passed through by the first radio frequency interface
In channel access 802.15.4 networks, selected channel access 802.15.4 nets are passed through by least one second radio frequency interface
Network, the channel quantity of access 802.15.4 networks is added, thus, prevents wireless network data from colliding, ensure channel open, prevented
Only data re-transmitting；Equipment adaptation gain directional antenna and omnidirectional antenna simultaneously, can support remote beam communication and
Closely full range communication, reduces the complexity of network, while also reduces cost.
Obviously, it will be understood by those skilled in the art that above-mentioned each module of the invention or each step can be with general
Computing device realizes that they can be concentrated on single computing device, or be distributed in the net that multiple computing devices are formed
On network, alternatively, they can be realized with the program code that computer installation can perform, and be deposited so as to be stored in
Performed in storage device by computing device, they are either fabricated to each integrated circuit modules respectively or by them
Multiple modules or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware
With the combination of software.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, to those skilled in the art,
The present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, equivalent substitution,
Improve etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. method of access 802.15.4 networks, it is characterised in that including：Channel where scanning father node by the first radio frequency interface, pass through channel access 802.15.4 nets where the father node Network, wherein, it is described that father node place channel is scanned by the first radio frequency interface, pass through channel access where the father node 802.15.4 network includes：The gain directional antenna supported by first radio frequency interface is scanned to each channel, obtains scan fraction；According to the scan fraction, channel where the father node of first radio frequency interface is selected, and pass through the father node institute In channel access 802.15.4 networks；Selection is scanned to idle channel by least one second radio frequency interface, passes through selected channel access 802.15.4 network, wherein, it is described that selection is scanned to idle channel by least one second radio frequency interface, by selected The channel access 802.15.4 networks selected, including：By each antenna of at least one each self-supporting of second radio frequency interface with different frequencies to each idle channel It is scanned, records each idle channel scan fraction；According to each idle channel scan fraction, each second radio frequency interface selection idle channel access 802.15.4 Network.
- 2. the method for access 802.15.4 networks according to claim 1, it is characterised in that saved described by the father Also include after channel access 802.15.4 networks where point：Adjacency list is initialized, the day wire size and first radio frequency that the gain directional antenna is recorded in the adjacency list connect The interface number of mouth.
- 3. the method for access 802.15.4 networks according to claim 2, it is characterised in that described according to each sky Idle channel scan fraction, each second radio frequency interface selection idle channel access 802.15.4 networks also include afterwards：Record accesses interface number and the access institute of each second radio frequency interface of the idle channel in the adjacency list State the day wire size of each antenna of each second radio frequency interface support of idle channel.
- 4. the method for access 802.15.4 networks according to claim 1, it is characterised in that in first radio frequency interface With each second radio frequency interface by channel access 802.15.4 networks after, in addition to：The gain directional antenna supported by first radio frequency interface and each second radio frequency interface and complete Any wireless network services are provided to antenna.
- A kind of 5. device of access 802.15.4 networks, it is characterised in that including：First radio frequency interface AM access module, for channel where scanning father node by the first radio frequency interface, saved by the father Channel access 802.15.4 networks where point, wherein, the first radio frequency interface AM access module includes, the first scan channel module With the first channel selection block, wherein,First scan channel module, the gain directional antenna for being supported by first radio frequency interface are entered to each channel Row scanning, obtains scan fraction；First channel selection block, for according to the scan fraction, selecting to believe where the father node of first radio frequency interface Road, and pass through channel access 802.15.4 networks where the father node；Second radio frequency interface AM access module, for being scanned selection to idle channel by least one second radio frequency interface, By selected channel access 802.15.4 networks, wherein, the second radio frequency interface AM access module is swept including second channel Module and second channel selecting module are retouched, wherein,Second channel scan module, for each antenna by least one each self-supporting of second radio frequency interface with difference Frequency each idle channel is scanned, record each idle channel scan fraction；Second channel selecting module, for according to each idle channel scan fraction, each second radio frequency interface choosing Select idle channel access 802.15.4 networks.
- 6. the device of access 802.15.4 networks according to claim 5, it is characterised in that also include：First logging modle, for initializing adjacency list, the antenna of the gain directional antenna is recorded in the adjacency list Number and first radio frequency interface interface number.
- 7. the device of access 802.15.4 networks according to claim 6, it is characterised in that also include：Second logging modle, each second radio frequency interface for the record access idle channel in the adjacency list Interface number and access the day wire size of each antenna that each second radio frequency interface of the idle channel is supported.
- 8. the device of access 802.15.4 networks according to claim 5, it is characterised in that also include：Network service module, for the height supported by first radio frequency interface and each second radio frequency interface Gain directional antennas and omnidirectional antenna provide any wireless network services.
- 9. a kind of wireless routing device, it is characterised in that including the first radio frequency interface and at least one second radio frequency interface, also wrap Include the device of any described access 802.15.4 networks of claim 5-8.
- 10. wireless routing device according to claim 9, it is characterised in that first radio frequency interface supports 2 high increase Beneficial directional aerial, or 1 gain directional antenna and 1 omnidirectional antenna；Second radio frequency interface supports 2 gain directional antennas, 1 gain directional antenna and 1 omnidirectional Antenna or 2 omnidirectional antennas.
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| CN105432035B (en) | 2014-02-28 | 2019-05-03 | 华为技术有限公司 | Data transmission method and communication equipment |
| CN105025594A (en) * | 2015-06-23 | 2015-11-04 | 广东北斗平台科技有限公司 | Long-distance internet of things data transmission system and wireless router thereof |
| CN107635268A (en) * | 2016-07-19 | 2018-01-26 | 美的智慧家居科技有限公司 | Realize the methods, devices and systems that internet of things equipment networks |
| US11147146B2 (en) | 2018-03-27 | 2021-10-12 | Signify Holding B.V. | Sensor-based lighting system with integrated wireless signal repeater |
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| CN2610578Y (en) * | 2003-07-22 | 2004-04-07 | 北京富华移通技术发展有限公司 | Insertion point of radio local network |
| CN201657333U (en) * | 2010-05-24 | 2010-11-24 | 上海宏美通信设备有限公司 | Wireless access point of wireless MESH network |
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| US8451752B2 (en) * | 2007-05-21 | 2013-05-28 | Arrowspan, Inc. | Seamless handoff scheme for multi-radio wireless mesh network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2610578Y (en) * | 2003-07-22 | 2004-04-07 | 北京富华移通技术发展有限公司 | Insertion point of radio local network |
| CN201657333U (en) * | 2010-05-24 | 2010-11-24 | 上海宏美通信设备有限公司 | Wireless access point of wireless MESH network |
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