CN104917820B - A kind of data transmission method based on the wireless interconnected interworking technology of micropower - Google Patents
A kind of data transmission method based on the wireless interconnected interworking technology of micropower Download PDFInfo
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- CN104917820B CN104917820B CN201510221627.4A CN201510221627A CN104917820B CN 104917820 B CN104917820 B CN 104917820B CN 201510221627 A CN201510221627 A CN 201510221627A CN 104917820 B CN104917820 B CN 104917820B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a kind of data transmission methods based on the wireless interconnected interworking technology of micropower, are related to cordless communication network technology, by the weights of dynamic regulation child node and the different paths of Centroid, can choose the communication that optimal path carries out the shortest time.Compared with prior art, the present invention carries out weight computing to every data forward-path, and path efficiency statistical updating path efficiency weights are carried out in each data transmission procedure.Using this kind of data transmission method, make that the data transfer path of each meter reading is all success rate highest and the time is most short, to reach significantly improving for whole meter reading success rate.
Description
Technical field
The present invention relates to cordless communication network technologies, more particularly to wireless interconnected mutually based on micropower in low pressure kilowatt meter reading-out system
A kind of data transmission method of logical technology.
Background technology
With the day of the energy being becoming tight and power demand increases rapidly, many countries are all in actively development intelligent power skill
Art, for the current situation in China, establish safe and reliable power information acquisition system be exactly establish intelligent grid can not or
A scarce part.
In current power information acquisition system, local communication mode mostly uses RS485 buses and power line carrier side
Formula, but all there are shortcomings and deficiency in both communication modes, the installation and debugging of RS485 bus communication modes are complicated, are subject to
To artificial destruction, the decaying of power line carrier mode presence signal is big, noise source is more and interference is strong and is influenced by load characteristic
The problems such as, certain technology barrier is formed to the reliability of communication.And other can be overcome by micropower wireless communication technology
Communication mode certain meter reading application scenarios deficiency, it is easy for construction, need not additionally be laid with cable, general worker can be square
Just install；Communication is not only restricted to power grid characteristic, can be easily to across taiwan area, complicated power utilization environment Rapid Implementation meter reading side
Case；Traffic rate is fast, and real-time is high, facilitates implementation remote pre-payment, the applications such as long-range switching on.
Micropower wireless communication technology is loaded information into 470~510MHz frequency electromagnetic waves using frequency modulated mode
On, using spatial come into the method for row data communication；Its communication feature is ad hoc network, using the Ad hoc classifications of sub-clustering
Network structure, according to the intelligent electric energy meter address information inside concentrator module, module automatic network-building, electric energy meter module not only may be used
Can also be that its adjacent electric energy meter module forwards data, this makes from electric energy meter to concentrator to transmit the power information of itself
There are a plurality of effective routings, and when certain routing is interrupted, another way can be enabled immediately by continuing in wireless self-organization network
Data transmission.But in micro power radio communication, since wireless signal is easily protected from environmental, if transmitting terminal and receiving terminal are direct
Carry out data transmission, data transmission is easy to happen mistake, seriously affects meter reading success rate；In kilowatt meter reading-out system, an often master
Node accesses hundreds of child nodes, so meter reading frequency is very low for single ammeter, if under so low meter reading frequency because
Single meter reading is caused to fail for environment influence, it will cause whole meter reading success rate is low.
Invention content
The present invention is directed to deficiency in the prior art, provides a kind of data based on the wireless interconnected interworking technology of micropower
Transmission method carries out weight computing to every data forward-path, path efficiency statistics is carried out in each data transmission procedure
Update path efficiency weights.Using this kind of data transmission method, it is all success rate highest to make the data transfer path of each meter reading
And the time is most short, to reach significantly improving for whole meter reading success rate.
The invention is realized by the following technical scheme：A kind of transmission side data based on the wireless interconnected interworking technology of micropower
Method, network include several nodes, and the node includes the Centroid communicated and several child nodes, institute
The child node stated is distributed in the relay layer of several different levels, the relay layer centered on the Centroid successively
It is arranged from low level to a high position, the child node and child node described in the adjacent relay layer in the different relay layers
Or the child node is connected in same layer, the child node and the Centroid in relay layer described in lowest order
Connection, further includes following steps, step A)：The channel group of communication is first set up when networking, the channel group includes networking
Channel group and several working channel groups, each networking channel group and the working channel group are communicated with several
Frequency, then determine that each child node in the ownership of the different relay layers, is then collected by the networking channel group
RF signal strengths between each child node, and the RF signal strength data transmissions are returned Centroid and are compiled into child node
Neighbours' field intensity set；Step B)：Before the Centroid communicates for the first time with any child node, the Centroid traverses and this
All paths of the child node, traversal rule are to need in low level or same layer appoint in the high-order child node
Meaning one child node communicated as the relay point in the path, in lowest order the child node directly with
Centroid communication is communicated by the relay point that the child node of same layer is used as in the path, obtains institute
State the power for calculating the path behind path according to the number of relay point in the path and the child node neighbours field intensity set
Value, the Centroid work out child node route according to the communication path and the corresponding weights of child node described in this
Table；Step C)：Whether when the Centroid is communicated with any child node, confirming has this institute in the child node route table
The path for stating child node re-executes step B if not, if there is if according to recorded in the child node route table this
The best initial weights of the child node select the corresponding path to be communicated, if the reply data of this child node returns
Return the Centroid then communicate completion, if the reply data time-out of this child node does not return to the Centroid this
Secondary communication failure enters step D；Step D)：Then its in the same working channel group of the Centroid after communication failure
He still re-starts communication by the communication frequency by current communication path, and modifies to the weights of current path, if this
The reply data of the child node returns to the Centroid and then communicates completion and restore the former weights of current path, if by
The reply data of this child node still time-out does not return to the centromere after several other described communication frequencys are communicated
Then this time communication failure enters step E to point；Step E)：After communication failure then the Centroid the modified institute of current path
State the optimal power that weights are recorded the child node route table and choose this child node again from the child node route table
It is worth and the corresponding path is selected to be communicated, if the reply data of this child node returns to the Centroid
Communication is completed, and this time communication failure enters if the reply data of this child node still time-out does not return to the Centroid
Step D；Step F)：If step D is performed several times in the Centroid and the communication process of any child node
The Centroid still fails then to cancel and this time communicate with the communication of child node described in this afterwards, and the Centroid records described in this
The communication failure of child node indicates.
Preferably, the relay layer is up to seven layers.
Preferably, in the step B, the child node in the path as relay point is up to six.
Preferably, in the step A, the channel group includes the networking channel group and 33 institutes described in one
There are two communication frequencys for the working channel group stated, each networking channel group and working channel group tool, described
Communication frequency is between 471MHz~486MHz frequency ranges.Preferably, in the step B, the weight computing formula is：∑
(200-RSSI measured values)/∑ (relay point number+4) * 100；When the institute of the child node in adjacent communication in the path
When stating RF signal strengths less than or equal to -120dBm, RSSI value 120；The institute of the child node described in the adjacent communication in the path
RF signal strengths are stated more than -120dBm and when less than -40dBm, the absolute value of RSSI value RF signal strength values thus；Work as institute
When stating the RF signal strengths of the child node in path in adjacent communication more than or equal to -40dBm, RSSI value 40.
Preferably, in the step B, the child node route table only preserves at most 5 to the same child node
The path and the corresponding weights, when the path of this child node record in the child node route table is full
After volume, the Centroid continues to other paths of traversal and this child node, traverses out the new route after new route
Weights be compared with the weights in the path being recorded, if the weights of the new route are than the institute that any one is recorded
The weights for stating path are big, then the child node route table is recorded in the path of new route substitution weights minimum being recorded
In, if the weights of new route are smaller than the weights in all paths being recorded, the Centroid continues traversal and this institute
State other paths of child node.
Preferably, in the B of the step, the estimated time communicated between the child node and the Centroid is defined
T1And shortest time T2, estimated according to the child node route table and communicated between each child node and the Centroid
Estimated time T1And it records；In the step C, if the reply data of this child node returns to the Centroid
Communication is completed, and practical communication time T is recorded0；If T0More than the T of child node current communication path described in this1, then current thus
The weights of communication path reduce 1%；If T0Less than the T of child node current communication path described in this1And the child node route table
T without this current communication path2Information then updates the T2For T0The weights of current communication path increase by 1% thus simultaneously；Such as
Fruit T0Not less than the T of child node current communication path described in this2And it is not more than T1, then the weights of current communication path increase thus
1%；If T0Less than the T of child node current communication path described in this2, then the T is updated2For T0Present communications road thus simultaneously
The weights of diameter increase by 2%；Any corresponding weights in the path are right after being recorded to the child node route table
The increase of this weights upper limit must not exceed itself 20%.
Preferably, in the step D, the weights for changing current path are that the weights of current path is allowed to reduce 10%；
In the step E, the child node route table is recorded in the modified weights of current path after communication failure, if institute
Path recycling table of the Centroid without child node described in this is stated, then the Centroid establishes the path and recycles table, together
When allow the path recycling table to record all paths of this child node and corresponding power in the child node route table at that time
Value compares the child node route table and described if there is the Centroid path of this child node to recycle table
Table is recycled in path, the path of this child node increased newly in the child node route table is added to the path recycling table
It is interior, then according to the traversal rule in the child node neighbours field intensity set and the step B traverse again this described child node with
The path of the Centroid and corresponding weights are calculated, if the path traversed out and being originally stored in the sub- section
Either path in point routing table is identical, and the Centroid continues other paths of traversal and this child node, if time
The path gone through out it is different from the either path being originally stored in the child node route table but be stored in the path
Either path is identical in recycling table, and the Centroid continues other paths of traversal and this child node, if traversed out
The path it is different from the either path being originally stored in the child node route table and recycled with the path is stored in
In table either path difference then according to the weights of new route and the weights in path being recorded in the child node route table into
Row compares, if the weights of new route are bigger than the weights in the path that any one is recorded, new route replaces weights minimum
The path that is recorded be recorded in the child node route table, if the weights of new route are than all paths being recorded
Weights it is small, then the Centroid continues traversal and other paths of this child node, from the sub- section after the completion of traversal
Point routing table chooses the best initial weights of this child node and the corresponding path is selected to be communicated again, if communication
The path recycling table that is successful then deleting this child node；In the step F, in the Centroid and any institute
State in the communication process of child node if step D be performed three times in same primary communication after the Centroid and this described son
The communication of node, which still fails then to cancel, this time to be communicated, and the Centroid records the communication failure mark of this child node.
The basis of the present invention is the wireless interconnected interworking technology of micropower, which is suitable for micropower mobile Ad hoc network
Network, it is completely fixed to have been carried out to the aerial frame format of concentrator communication unit and electric energy meter communication unit, collector communication unit
Justice and description, specify the function and data type of node, support the flexible quickly networking being managed collectively based on concentrator.Micro- work(
Rate wireless self-organization network includes two kinds of communication equipments, and one is Centroids (can be mounted in concentrator), and another kind is son
Node (can be mounted in electric energy meter or collector).Can be with interactive communication between Centroid and child node, it can between child node
To forward data.Micropower wireless self-organization network constitutes Star Network, tree network or MESH mesh networks, network
Specific framework determines by Centroid, no matter the topological structure of which kind of network, child node adapts to.The communication frequency of present networks
Between 471MHz~486MHz, used technical solution is sent using two-band multipath, involved data transmission
Method is capable of the product of completely compatible each different manufacturers, to solve between different manufacturers for power wireless communications not on
When the communication unit module of problem, any one piece of intelligent electric meter breaks down, the similar product of other producers can be changed to.
According to the wireless interconnected interworking technology requirement of micropower, during networking, host node has collected the field intensity information of each child node,
Also determine the network number of plies ownership of each child node.When using affairs for the first time to some child node, by neighbours' field intensity set,
All paths from host node to target child node are first calculated, and according to calculation formula ∑ (200-RSSI measured values)/∑ (relaying
Point number+4) * 100 show that best initial weights determine optimal path, the size of weights be not be fixed, first weight computing finishes
Later, ratio adjustment will be carried out according to the path transmission time, and when optimal path meter reading encounters interference, cause weights to decline,
Frequency interferences are then excluded by switching frequency first, if still can not normal communication, the weights for reducing this path are again right
It is route list sorting, and use the path with best initial weights after rearranging to recommunicate to ensure single meter reading success, so
It recycles 3 times and still unsuccessfully then can be determined that child node breaks down.In conclusion the setting and maintenance of passage path weights, it is ensured that
Optimal path can be used when selection path, and be always the time use shortest available path.Meter reading data passes through this
Path carries out data transmission, and is most reliable under conditions present, the most method of efficiency.
Compared with prior art, the present invention carries out weight computing to every data forward-path, is transmitted across in each data
Path efficiency statistical updating path efficiency weights are carried out in journey.Using this kind of data transmission method, the data of each meter reading is made to pass
Defeated path is all success rate highest and the time is most short, to reach significantly improving for whole meter reading success rate.
Description of the drawings
Fig. 1 is traversal path flow chart of the present invention.
Fig. 2 is communication flow diagram of the present invention.
Fig. 3 is retransmission mechanism flow chart of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings with specific implementation mode, the invention will be further described.
As shown in Figure 1 to Figure 3, a kind of data transmission method based on the wireless interconnected interworking technology of micropower, it is first when networking
The channel group for setting up communication, according to communications channel definition in 471MHz~486MHz frequency ranges.The centre frequency of these channels is determined
Justice is as follows：33 channel groups are shared, there are two channels for each channel group.Channel group is divided into two classes：No. 0 channel group is believed for networking
Road group is safeguarded for networking；1 to 32 channel groups are working channel group, for applications such as meter readings.Specific divide sees that communication channel is shown in
Table 1
| Channel group | Channel | Channel | Channel group | Channel | Channel |
| Number | 0(MHz) | 1(MHz) | Number | 0(MHz) | 1(MHz) |
| 0 | 476.3 | 484.7 | 17 | 474.7 | 482.5 |
| 1 | 471.5 | 479.3 | 18 | 474.9 | 482.7 |
| 2 | 471.7 | 479.5 | 19 | 475.1 | 482.9 |
| 3 | 471.9 | 479.7 | 20 | 475.3 | 483.1 |
| 4 | 472.1 | 479.9 | 21 | 475.5 | 483.3 |
| 5 | 472.3 | 480.1 | 22 | 475.7 | 483.5 |
| 6 | 472.5 | 480.3 | 23 | 475.9 | 483.7 |
| 7 | 472.7 | 480.5 | 24 | 476.1 | 483.9 |
| 8 | 472.9 | 480.7 | 25 | 476.5 | 484.1 |
| 9 | 473.1 | 480.9 | 26 | 476.7 | 484.3 |
| 10 | 473.3 | 481.1 | 27 | 476.9 | 484.5 |
| 11 | 473.5 | 481.3 | 28 | 477.1 | 484.9 |
| 12 | 473.7 | 481.5 | 29 | 477.3 | 485.1 |
| 13 | 473.9 | 481.7 | 30 | 477.5 | 485.3 |
| 14 | 474.1 | 481.9 | 31 | 477.7 | 485.5 |
| 15 | 474.3 | 482.1 | 32 | 477.9 | 485.7 |
| 16 | 474.5 | 482.3 |
Table 1
Then networking determines the RF signal strengths between each child node by networking channel group, and the RF signals
Field strength data transmission returns Centroid and is compiled into child node neighbours' field intensity set.When calculating optimal path, Centroid needs to be traversed for
Optimal power is calculated to all paths of target child node, and by formula ∑ (200-RSSI measured values)/∑ (number of plies+3) * 100
Value, obtains the path with best initial weights.
Formula weights=∑ (200-RSSI measured values)/∑ (number of plies+3) * 100 is meant that each node in path and upper layer
The summation of the field intensity value of node divided by the summation of the path number of plies, in this way, path level is much bigger on weights influence, that is to say, that
The shorter weights in path comparatively can be higher.Rssi measurement value represents RF signal strengths, expresses range：- 120dBm~-
40dBm (when signal source directly inputs), measurement range：- 110dBm~-50dBm (when signal source directly inputs), error margin ±
3dB.A) when field strength is less than or equal to -120dBm, RSSI value is all 120；B) when field strength is more than -120dBm and is less than -40dBm,
RSSI value is the absolute value of field intensity value, such as field strength -96dBm, RSSI value 96；C) when field strength is more than or equal to -40dBm, RSSI
Value is all 40.The number of plies indicates the serial number of each node when data forwarding on the path, and if relay point is 5, then the data forwarding needs
6 transmissions are carried out, forwarding every time can all have point-to-point RSSI value.Up to relay node quantity is 6.As exemplified in table 2, layer
Secondary fewer weights are bigger, and path is more excellent.
Table 2
Since whole system may have thousands of child nodes up to a hundred, if preserving all paths needs larger memory space,
It thus can be preferably to each child node to preserving 5 optimal paths.Therefore new route is also needed in traversal and is preserved
Path is compared.For the path traversed, there are two types of results：As a result 1, which is implicitly present in child node route table
In, traverse next.As a result 2, which is not present in child node route table.By the path and child node when for result 2
Path in routing table is compared together, if the weights in the path are less than the weights in all paths in routing table, under traversing
One paths.If the weights in the path are more than the weights of the either path in routing table, which is inserted into routing table phase
It answers position and deletes the path of weights minimum, and start next round traversal.The flow of specific traversal path can be found in Fig. 1.
If data transmission finds do not have relevant path in routing table for the first time, starts first traversal path, select most
Shortest path, and estimate according to the path recorded in child node route table the time T of response1And set shortest time T2.Then it selects
It takes optimal path to be communicated, simultaneously wait-for-response is carried out data transmission by the path.Record call duration time T after communicating successfully0,
If T0More than the T of child node current communication path described in this1, then the weights of current communication path reduce 1% thus；If T0
Less than the T of child node current communication path described in this1And the T of the child node route table without this current communication path2Information, then
Update the T2For T0The weights of current communication path increase by 1% thus simultaneously；If T0Currently lead to not less than child node described in this
Believe the T in path2And it is not more than T1, then the weights of current communication path increase by 1% thus；If T0Work as less than child node described in this
The T of preceding communication path2, then the T is updated2For T0The weights of current communication path increase by 2% thus simultaneously；Any path
The corresponding weights must not exceed the increase of the weights upper limit described in this after being recorded to the child node route table
Itself 20%.The visible Fig. 2 of detailed process.
After Centroid selection optimal path carries out data transmission unsuccessfully, to avoid this communication failure and excluding to be somebody's turn to do
Path communication failure caused by signal interference needs another frequency for first switching same working group to carry out data transmission dry to exclude
Influence is disturbed, then again to being transmitted again by the path.It needs the weights of the paths reducing 10% at this time, switching frequency
After rate communicates again, discovery can normal response, then weights are refilled, this is communicated successfully.If still time-out does not return, need
It pulls up a horse and transmits order herein from another paths, to ensure that this is communicated successfully, from all paths for newly traversing this child node,
Calculate optimal path, if path in child node route table if retain its former weights and do not do and update.After traversing again
Path continues to select optimal path into row data communication according to weights size, if communicate it is unsuccessful if again switching frequency into
Row data transmission.So cycle 3 times, if still unsuccessful after 3 times, it is believed that this copy reading fails, and records failure.Use this side
Method causes still carrying out communication category just using original route when toggle path if optimal path differs too big with sub-optimal path weights
It often occurs as the too big expression sub-optimal path signal of weights difference is not fine, can repeatedly attempt optimal path and exclude as far as possible temporarily
Interference.After multiple attempt, optimal path weights drop to after sub-optimal path, you can selection sub-optimal path carries out data and turns
Hair, and optimal path weights can be thought permanent fault simultaneously, participating in data temporarily without chance sends until current optimal path
Weights decline after be likely to participate in data send attempt.Such long-play, weights are protected gradually according to path transmitting efficiency
It is fixed to keep steady, and permanent fault path will be unable to participate in data transmission, achieve the effect that path of debugging.
In conclusion routine weight value setting and Dynamic Maintenance, it is ensured that optimal path can be used when selection path, and
Be always the time use shortest available path.Data communication is carried out data transmission by the path, most may be used under conditions present
It leans on, the method for most efficiency.And when optimal path meter reading encounters interference, causes weights to decline, then excluded first by switching frequency
Frequency interferences, if still can not normal communication, reduce the weights in this path again to routeing list sorting, and use highest weight
The path of value, which so recycles 3 times, ensures that single communicates successfully, it is ensured that is chosen again in the case where debugging node optimal
Communication path.
Primary module in Figure of description is the tool of Centroid as the Centroid in the present embodiment can acute pyogenic infection of finger tip main mould
Block, while the child node in the present embodiment can acute pyogenic infection of finger tip destination address.Routing table is the abbreviation of child node route table, copy reading, meter reading
It is the specific manifestation form of communication.
Claims (8)
1. a kind of data transmission method based on the wireless interconnected interworking technology of micropower, network includes several nodes, described
Node include a Centroid communicating and several child nodes, the child node is distributed in several different layers
In secondary relay layer, the relay layer is arranged from low level to a high position successively centered on the Centroid, during difference is described
It is only connected to child node described in child node or same layer described in the adjacent relay layer after child node described in layer,
The child node is connected to the Centroid in relay layer described in lowest order, it is characterized in that further including following
Step,
Step A)：The channel group of communication is first set up when networking, the channel group includes networking channel group and several work letter
Road group, each networking channel group and the working channel group have several communication frequencys, then determine each described
Then child node collects the letters of the RF between each child node in the ownership of the different relay layers by the networking channel group
Number field strength, and the RF signal strength data transmissions are returned Centroid and are compiled into child node neighbours' field intensity set；
Step B)：Before the Centroid communicates for the first time with any child node, the Centroid traversal and this described son
The relevant all paths of node, traversal rule are to need to be in low level or same layer arbitrary in the high-order child node
One child node is communicated as the relay point in the path, and the child node in lowest order is directly and institute
It states Centroid communication or is communicated by the relay point that the child node of same layer is used as in the path, described in acquisition
The weights in the path are calculated behind path according to the number of relay point in the path and the child node neighbours field intensity set,
The Centroid works out child node route table according to the communication path and the corresponding weights of child node described in this；
Step C)：When the Centroid is communicated with any child node, confirm in the child node route table whether there is this
The path of the child node re-executes step B if not, if there is if according to recording in the child node route table
The best initial weights of this child node select the corresponding path to be communicated, if the reply data of this child node
It returns to the Centroid and then communicates completion, if the reply data time-out of this child node does not return to the Centroid
This time communication failure enters step D；
Step D)：After communication failure then the Centroid with other described communication frequencys in the same working channel group still
Communication is re-started by current communication path, and is modified to the weights of current path, if the response of this child node
Data return to the Centroid and then communicate completion and restore the former weights of current path, if by several other it is described logical
The reply data of this child node still time-out does not return to the Centroid then this communication failure after letter frequency is communicated
Enter step E；
Step E)：Then the child node is recorded in the modified weights of current path by the Centroid after communication failure
Routing table simultaneously chooses the best initial weights of this child node from the child node route table and selects the corresponding road again
Diameter is communicated, and completion is communicated if the reply data of this child node returns to the Centroid, if this described son
The reply data of node still time-out does not return to the Centroid, and then this time communication failure enters step D；
Step F)：In the communication process of the Centroid and any child node if after step D is performed several times
The Centroid still fails then to cancel with the communication of child node described in this this time to be communicated, and the Centroid records this son
The communication failure of node indicates.
2. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 1, feature
For the relay layer is up to seven layers.
3. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 2, feature
For in the step B, the child node in the path as relay point is up to six.
4. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 1, feature
For in the step A, the channel group includes networking channel group described in one and the working channel described in 33
There are two communication frequency, the communication frequency exists for group, each networking channel group and working channel group tool
Between 471MHz~486MHz frequency ranges.
5. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 3, feature
For in the step B, the weight computing formula is：∑ (200-RSSI measured values)/∑ (relay point number+4) * 100；
When the RF signal strengths of the child node in adjacent communication in the path are less than or equal to -120dBm, RSSI
Value is 120；
The RF signal strengths of the child node described in the adjacent communication in the path are more than -120dBm and when less than -40dBm,
The absolute value of RSSI value RF signal strength values thus；
When the RF signal strengths of the child node in adjacent communication in the path are more than or equal to -40dBm, RSSI value
It is 40.
6. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 5, feature
For, in the step B, the child node route table to the same child node only preserve path at most described in 5 and
The corresponding weights, after the path quota of this child node record in the child node route table, in described
Heart node continues to traversal and other relevant paths of this described child node, traverse out after new route the weights of the new route with
The weights in the path being recorded are compared, if the weights of the new route are than the path that any one is recorded
Weights are big, then the path of new route substitution weights minimum being recorded is recorded in the child node route table, Ruo Xinlu
The weights of diameter are smaller than the weights in all paths being recorded, then the Centroid continues traversal and child node phase described in this
Other paths closed.
7. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 6, feature
For,
In the B of the step, the estimated time T communicated between the child node and the Centroid is defined1And the shortest time
T2, estimated according to the child node route table and communicate estimated time T between each child node and the Centroid1And
Record；
In the step C, completion is communicated if the reply data of this child node returns to the Centroid, is recorded
Practical communication time T0；
If T0More than the T of child node current communication path described in this1, then the weights of current communication path reduce 1% thus；
If T0Less than the T of child node current communication path described in this1And the child node route table is without this current communication path
T2Information then updates the T2For T0The weights of current communication path increase by 1% thus simultaneously；
If T0Not less than the T of child node current communication path described in this2And it is not more than T1, then the power of current communication path thus
Value increases by 1%；
If T0Less than the T of child node current communication path described in this2, then the T is updated2For T0Current communication path thus simultaneously
Weights increase by 2%；
Any corresponding weights in the path are after being recorded to the child node route table on weights described in this
The increase of limit must not exceed itself 20%.
8. a kind of data transmission method based on the wireless interconnected interworking technology of micropower according to claim 7, feature
For,
In the step D, the weights for changing current path are that the weights of current path is allowed to reduce 10%；
In the step E, the child node route table is recorded in the modified weights of current path after communication failure,
If the Centroid recycles table without the path of child node described in this, the Centroid establishes the path recycling
Table, while the path recycling table being allowed to record all paths of this child node and phase in the child node route table at that time
Answer weights, if the Centroid have this child node path recycle table, compare the child node route table and
Table is recycled in the path, and the path of this child node increased newly in the child node route table, which is added to the path, to be returned
It receives in table, this sub- section is then traversed according to the traversal rule in the child node neighbours field intensity set and the step B again
Point with the path of the Centroid and calculate corresponding weights, if the path traversed out and described in being originally stored in
Either path in child node route table is identical, and the Centroid continues traversal and other relevant roads of this described child node
Diameter, if the path traversed out it is different from the either path being originally stored in the child node route table but be stored in
Either path is identical in the path recycling table, and the Centroid continues traversal and other relevant roads of this described child node
Diameter, if the path traversed out it is different from the either path being originally stored in the child node route table and be stored in
Either path difference then according to the weights of new route and is recorded in the child node route table in the path recycling table
The weights in path are compared, if the weights of new route are bigger than the weights in the path that any one is recorded, new route
The path that is recorded of substitution weights minimum is recorded in the child node route table, if the weights of new route are remembered than all
The weights in the path of record are small, then the Centroid continues traversal and other relevant paths of this described child node, traversal
The best initial weights of this child node are chosen again from the child node route table after the completion and select the corresponding path
It is communicated, the path recycling table of this child node is deleted if communicating successfully；
In the step F, the Centroid in the communication process of any child node if step D is same
The rear Centroid is performed three times in secondary communication, and still unsuccessfully then cancellation this time communicates with the communication of child node described in this, described
Centroid records the communication failure mark of this child node.
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| CN105357729B (en) * | 2015-09-25 | 2018-12-04 | 北京杰睿中恒科技有限公司 | A kind of electric meter data collecting system and method based on JRoute micropower wireless self-networking |
| CN105764109B (en) * | 2016-04-12 | 2019-04-12 | 武汉正维电子技术有限公司 | A kind of low pressure electricity consumption acquisition wireless meter-reading systematic networking method |
| CN106102019A (en) * | 2016-06-02 | 2016-11-09 | 山东有人信息技术有限公司 | A kind of data transmission method based on WIFI broadcast packet and data transmission system |
| CN106327847B (en) * | 2016-08-19 | 2019-11-15 | 深圳市慧联通信技术有限公司 | Power information collection copies method and system |
| CN108183856B (en) * | 2016-12-08 | 2021-10-15 | 中兴通讯股份有限公司 | Route establishing method and device |
| CN108243477B (en) * | 2016-12-27 | 2020-09-25 | 辰芯科技有限公司 | Central node dynamic selection method, node and wireless self-organizing network |
| CN108271135B (en) * | 2018-01-18 | 2021-01-05 | 深圳友讯达科技股份有限公司 | Networking communication method and device |
| CN109039382B (en) * | 2018-09-27 | 2021-10-29 | 深圳友讯达科技股份有限公司 | Electric energy meter reading method and device |
| CN113269955B (en) * | 2021-07-15 | 2021-11-16 | 武汉中原电子信息有限公司 | Data acquisition method for distribution room user electric meters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827022A (en) * | 2010-03-19 | 2010-09-08 | 重庆大学 | Low-voltage power line communication network constructing method for power meter reading system |
| CN102281558A (en) * | 2011-06-23 | 2011-12-14 | 成都赛康信息技术有限责任公司 | Wireless sensor networking method applied to data transmission of internet of things |
| CN103532844A (en) * | 2013-09-27 | 2014-01-22 | 南京日新科技有限公司 | Micro-power wireless networking and communication method, master node and system |
| CN103826281A (en) * | 2014-02-24 | 2014-05-28 | 江苏林洋电子股份有限公司 | Micropower wireless communication routing algorithm and networking method based on field intensity information |
| CN104408903A (en) * | 2014-11-05 | 2015-03-11 | 西安润维机电设备有限公司 | Micro-power wireless meter reading method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8199635B2 (en) * | 2008-08-12 | 2012-06-12 | General Atomics | Method and system for network setup and maintenance and medium access control for a wireless sensor network |
-
2015
- 2015-05-04 CN CN201510221627.4A patent/CN104917820B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827022A (en) * | 2010-03-19 | 2010-09-08 | 重庆大学 | Low-voltage power line communication network constructing method for power meter reading system |
| CN102281558A (en) * | 2011-06-23 | 2011-12-14 | 成都赛康信息技术有限责任公司 | Wireless sensor networking method applied to data transmission of internet of things |
| CN103532844A (en) * | 2013-09-27 | 2014-01-22 | 南京日新科技有限公司 | Micro-power wireless networking and communication method, master node and system |
| CN103826281A (en) * | 2014-02-24 | 2014-05-28 | 江苏林洋电子股份有限公司 | Micropower wireless communication routing algorithm and networking method based on field intensity information |
| CN104408903A (en) * | 2014-11-05 | 2015-03-11 | 西安润维机电设备有限公司 | Micro-power wireless meter reading method |
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