CN106888073A - Transmission line of electricity wireless network instructs transmission method - Google Patents
Transmission line of electricity wireless network instructs transmission method Download PDFInfo
- Publication number
- CN106888073A CN106888073A CN201710011287.1A CN201710011287A CN106888073A CN 106888073 A CN106888073 A CN 106888073A CN 201710011287 A CN201710011287 A CN 201710011287A CN 106888073 A CN106888073 A CN 106888073A
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- CN
- China
- Prior art keywords
- bag
- inspection terminal
- packet
- relay station
- instruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1614—Details of the supervisory signal using bitmaps
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
Abstract
It is a kind of transmission line of electricity wireless network instruction transmission method the present invention relates to Power Line Communication network transmission technology field, the first step carries out the instruction based on bitmap to command information in central station and stores and be sent to relay station；Second step relay station receive bitmap instructions bag and scan instruction bag everybody；3rd step relay station sends packet to each inspection terminal；4th each inspection terminal of the step and packet to receiving carries out packet loss inspection；To relay station send feedback information if packet loss, relay station determines to retransmit bag 5th step according to feedback information, and each inspection terminal recovers its data bag by retransmitting bag；6th step:Inspection terminal operates corresponding behavior according to packet content.The present invention can be effectively increased the scalability of storage using the instruction storage mode based on bitmap, save storage resource；Wireless network transmissions efficiency is improved into single re-transmission bag by multiple data packet groups, the number of times that packet loss is retransmitted is reduced, the efficiency that inspection terminal recovers packet loss is improve.
Description
Technical field
It is a kind of transmission line of electricity wireless network instruction the present invention relates to a kind of Power Line Communication network transmission technology field
Transmission method.
Background technology
The overhead transmission line of transmission line of electricity especially voltage levels is the lifeblood of power system, its design, construction, fortune
Row and safeguard validity and economy directly influence power network operation cost and operational efficiency and numerous people it is personal
Interests.It is the effective measures for preventing transmission line malfunction that periodically circuit is monitored and safeguarded, but due to most of at present
Transmission line of electricity is all distributed in the wild, and circuit is long, and distribution is wide, and on the way across high mountain, the various complicated landform such as forest zone depend merely on manpower row
Look into, maintenance safety hidden danger, efficiency is low, and implements relatively difficult.For these problems, the monitoring of current power transmission line status
System is widely used in transmission line of electricity dimension pipe.
Because transmission line of electricity distribution is wide, landform is different, when the information transfer of transmission line of electricity uses wireless WiFi and WiMax skills
During art, system power consumption is big, and unified state-detection strategy to all circuits will cause the wasting of resources.Wireless signal
Transmitting procedure can also be subject to various interference, cause signal transmission to fail, or situation of the transmission data to bag occurs, while wireless pass
The data storage scalability such as defeated instruction is weak, and storage consumption is big.Wireless network may need to send general inspection in transmission line of electricity
Survey signal, emergency situations, emergency etc., it is also possible to situations such as there is network topology change.In order to solve the above problems, it is necessary to
A kind of transmission line of electricity wireless network instructs transmission method.
The content of the invention
The invention provides a kind of transmission line of electricity wireless network instruction transmission method, overcome above-mentioned prior art no
Foot, scalability is weak, storage consumption big for command information storage that it can effectively solve prior art presence, cause the wasting of resources and
The low problem of inspection terminal loss recovery efficiency.
The technical scheme is that realized by following measures：A kind of transmission line of electricity wireless network instructs transmission side
Method, comprises the following steps：
The first step：The instruction based on bitmap is carried out in central station to command information to store, central station refers to bitmap afterwards
Bag is made to be sent to relay station, afterwards into second step；
Second step：Relay station is received and sweep bitmap instruction bag, and the instruction corresponding to the instruction is inquired about if flag bit is 1
Operate and perform the command operating and network parameter is set, afterwards into the 3rd step, corresponding instruction behaviour is closed if flag bit is 0
Make and network parameter is set, then end operation；
3rd step：Packet from relay station to each inspection terminal broadcast transmission command operating corresponding informance content, afterwards
Into the 4th step；
4th step：Each inspection terminal receives packet and the packet to receiving carries out packet loss inspection, if there is packet loss,
Then enter the 5th step, if not there is packet loss, into the 6th step；
5th step：After each inspection terminal judges packet loss, to relay station send feedback information, relay station is according to feedback letter
Breath determines to retransmit bag, and each inspection terminal recovers its data bag by retransmitting bag, afterwards into the 6th step；
6th step：Inspection terminal operates corresponding behavior and adjustment network parameter to set according to packet content.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
In the above-mentioned first step, the instruction storing step for be based on bitmap to command information in central station is as follows：
(1) operational order and network instruction are sorted and is numbered, when there is new instruction to add, according to existing operational order
Sequence and numbering, sort and give numbering successively；
(2) flag bit to the operational order that need to be performed sets 1, and the flag bit to the operational order for being not required to perform sets 0.
In above-mentioned 4th step, inspection terminal carries out packet loss test mode and is to the packet for receiving：ACK modes or/and
NAKS modes.
In above-mentioned 5th step, relay station carries out the re-transmission of packet according to feedback information, and inspection terminal is extensive by retransmitting bag
The step of multiple its data bag, is as follows：
(1) packet that relay station is lost according to the feedback information detection of each inspection terminal to each inspection terminal；
(2) the data packet group synthesis that relay station loses each inspection terminal retransmits bag, and it is lost data packets step-by-step to retransmit bag
XOR；
(3) relay station sends to each inspection terminal of packet loss and retransmits bag；
(4) each inspection terminal is received and retransmits bag, and the paid-in bag that retransmits is carried out XOR with itself XOR bag, is recovered
The packet that each inspection terminal itself is lost.
Using the instruction storage mode based on bitmap in the present invention, the scalability of storage can be effectively increased, save storage
Resource, it is to avoid the wasting of resources, reduces operation cost；Simultaneously the present invention by relay station can reasonably select multiple data packet groups into
It is single to retransmit bag to improve wireless network data efficiency of transmission, the number of times that packet loss is retransmitted is reduced, while inspection terminal is from being received
To re-transmission bag in recover to lose the mode of packet, improve the efficiency of inspection terminal recovery packet loss.
Brief description of the drawings
Accompanying drawing 1 is flow chart of the invention.
Accompanying drawing 2 is that network coding for retransmission strategy schematic diagram is used between relay station and inspection terminal of the invention.
Accompanying drawing 3 is operation signaling of the invention and network parameter signalling coding bit map.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme and actual conditions determine specifically
Implementation method.
With reference to embodiment and accompanying drawing, the invention will be further described：
As shown in accompanying drawing 1,2, transmission line of electricity wireless network instruction transmission method is comprised the following steps：
The first step：The instruction based on bitmap is carried out in central station to command information to store, central station refers to bitmap afterwards
Bag is made to be sent to relay station, afterwards into second step；
Second step：Relay station is received and sweep bitmap instruction bag, and the instruction corresponding to the instruction is inquired about if flag bit is 1
Operate and perform the command operating and network parameter is set, afterwards into the 3rd step, corresponding instruction behaviour is closed if flag bit is 0
Make and network parameter is set, then end operation；
3rd step：Packet from relay station to each inspection terminal broadcast transmission command operating corresponding informance content, afterwards
Into the 4th step；
4th step：Each inspection terminal receives packet and the packet to receiving carries out packet loss inspection, if there is packet loss,
Then enter the 5th step, if not there is packet loss, into the 6th step；
5th step：After each inspection terminal judges packet loss, to relay station send feedback information, relay station is according to feedback letter
Breath determines to retransmit bag, and each inspection terminal recovers its data bag by retransmitting bag, afterwards into the 6th step；
6th step：Inspection terminal operates corresponding behavior and adjustment network parameter to set according to packet content.
Here in the first step, bitmap refers to the vector being made up of some binary digits, it can with little internal memory come
Storage Boolean variables；One Local C ache of processor of each correspondence of bitmap, has N, and each is used for indicating
Corresponding Cache whether there is the copy of the memory page；When write operation is carried out to each, as long as notifying have accordingly according to bitmap
The object of copy, and the number n of these objects is general more much smaller than the scale of system, it is unrelated with system scale size N, therefore branch
Hold the scalability of system and reduce expense；The present invention is stored using bitmap, is because each wireless routing device can access
Channel it is limited, and different mobile inspection terminal treatment affairs are also different, and may increase new business；Therefore the present invention makes
With the instruction storage mode based on bitmap, the scalability of storage can be effectively increased, save storage resource, it is to avoid the wasting of resources,
Reduce operation cost.
Here in the 3rd step, relay station is counted to the information content packet of each inspection terminal broadcast transmission command operating
It is X according to bagi, wherein 1≤i≤3；Inspection terminal Tj, wherein 1≤j≤3；
Here in the 5th step, multiple data packet groups are reasonably selected to retransmit bag to improve wireless network into single by relay station
Network data transmission efficiency, reduces the number of times that packet loss is retransmitted, while inspection terminal is recovered to lose number from received re-transmission bag
According to the mode of bag, the efficiency that inspection terminal recovers packet loss is improve.
Here in the 6th step, corresponding behavior includes remote power control, and program updates, the behavior such as equipment self-inspection；Adjustment
Network parameter is set includes particular service RSVP, data communication priority, the network parameter such as network topology connection adjustment.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
As shown in accompanying drawing 1,2,3, in the above-mentioned first step, the instruction that command information be based on bitmap is deposited in central station
Storage step is as follows：
(1) operational order and network instruction are sorted and is numbered, when there is new instruction to add, according to existing operational order
Sequence and numbering, sort and give numbering successively；
(2) flag bit to the operational order that need to be performed sets 1, and the flag bit to the operational order for being not required to perform sets 0.
As shown in Figure 3, operational order and network instruction sorted here and during numbering, by corresponding to each of bit vector
Bit is encoded to operational order, and code clerk is corresponded with bit, when there is new instruction to add, it is only necessary to most
Increase by 1 after numbering afterwards.
As shown in accompanying drawing 1,2, in the 4th step, inspection terminal carries out packet loss test mode and is to the packet for receiving：ACK
Mode or/and NAKS modes.
Here, ACK modes are to confirm character, and in data communication, receiving station issues a kind of transmission class control of dispatching station
Character, the data that expression is sent have confirmed that reception is errorless.NAKS modes are negative responses or do not reply, in digital communication
Confirm that but data are received have the signal of minor error.Inspection terminal is by ACK modes or/and NAKS modes to the data that receive
Bag carries out packet loss inspection, if wherein there is a kind of mode to confirm packet loss, is judged as packet loss.
As shown in accompanying drawing 1,2, in the 5th step, relay station carries out the re-transmission of packet according to feedback information, and inspection terminal is led to
Cross as follows the step of re-transmission bag recovers its data bag：
(1) packet that relay station is lost according to the feedback information detection of each inspection terminal to each inspection terminal；
(2) the data packet group synthesis that relay station loses each inspection terminal retransmits bag, and it is lost data packets step-by-step to retransmit bag
XOR；
(3) relay station sends to each inspection terminal of packet loss and retransmits bag；
(4) each inspection terminal is received and retransmits bag, and the paid-in bag that retransmits is carried out XOR with itself XOR bag, is recovered
The packet that each inspection terminal itself is lost.
Here, if relay station according to feedback information detection to each inspection terminal T1, T2 and T3 difference lost data packets A, B and
C；Relay station determines that it is lost data packets step-by-step XOR to retransmit bag, i.e. Pa isRelay station respectively patrols and examines end to packet loss
End sends and retransmits bag；T1 can carry out XOR i.e. by retransmitting bag with itself XOR bagA is recovered, together
Reason T2 and T3 can respectively recover B and C.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal implementation effect
Really, can according to actual needs increase and decrease non-essential technical characteristic to meet the demand of different situations.
Claims (5)
1. a kind of transmission line of electricity wireless network instructs transmission method, it is characterised in that comprise the following steps：
The first step：The instruction based on bitmap is carried out in central station to command information to store, central station is by bitmap instructions bag afterwards
Relay station is sent to, afterwards into second step；
Second step：Relay station is received and sweep bitmap instruction bag, and the command operating corresponding to the instruction is inquired about if flag bit is 1
And perform the command operating and network parameter and set, afterwards into the 3rd step, closed if flag bit is 0 corresponding instruction operation and
Network parameter is set, then end operation；
3rd step：Relay station enters afterwards to the packet of each inspection terminal broadcast transmission command operating corresponding informance content
4th step；
4th step：Each inspection terminal receives packet and the packet to receiving carries out packet loss inspection, if there is packet loss, enters
Enter the 5th step, if not there is packet loss, into the 6th step；
5th step：After each inspection terminal judges packet loss, to relay station send feedback information, relay station is true according to feedback information
Fixed to retransmit bag, each inspection terminal recovers its data bag by retransmitting bag, afterwards into the 6th step；
6th step：Inspection terminal operates corresponding behavior and adjustment network parameter to set according to packet content.
2. a kind of transmission line of electricity wireless network according to claim 1 instructs transmission method, it is characterised in that：The first step
In, the instruction storing step for be based on bitmap to command information in central station is as follows：
(1) operational order and network instruction are sorted and is numbered, when there is new instruction to add, according to the row of existing operational order
Sequence and numbering, sort and give numbering successively；
(2) flag bit to the operational order that need to be performed sets 1, and the flag bit to the operational order for being not required to perform sets 0.
3. a kind of transmission line of electricity wireless network according to claim 1 and 2 instructs transmission method, it is characterised in that：4th
In step, inspection terminal carries out packet loss test mode and is to the packet for receiving：ACK modes or/and NAKS modes.
4. a kind of transmission line of electricity wireless network according to claim 1 and 2 instructs transmission method, it is characterised in that：5th
In step, relay station carries out the re-transmission of packet according to feedback information, and inspection terminal recovers the step of its data bag by retransmitting bag
It is rapid as follows：
(1) packet that relay station is lost according to the feedback information detection of each inspection terminal to each inspection terminal；
(2) the data packet group synthesis that relay station loses each inspection terminal retransmits bag, and it is lost data packets step-by-step XOR to retransmit bag；
(3) relay station sends to each inspection terminal of packet loss and retransmits bag；
(4) each inspection terminal is received and retransmits bag, and the paid-in bag that retransmits is carried out XOR with itself XOR bag, is recovered and is respectively patrolled
The packet that inspection terminal itself is lost.
5. a kind of transmission line of electricity wireless network according to claim 3 instructs transmission method, it is characterised in that：5th step
In, relay station carries out the re-transmission of packet according to feedback information, and inspection terminal wraps the step of recovering its data bag by retransmitting
It is as follows：
(1) packet that relay station is lost according to feedback information detection to each inspection terminal；
(2) the data packet group synthesis that relay station loses each inspection terminal retransmits bag, and it is lost data packets step-by-step XOR to retransmit bag；
(3) relay station sends to each inspection terminal of packet loss and retransmits bag；
(4) each inspection terminal is received and retransmits bag, and the paid-in bag that retransmits is carried out XOR with itself XOR bag, is recovered and is respectively patrolled
The packet that inspection terminal itself is lost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011287.1A CN106888073A (en) | 2017-01-06 | 2017-01-06 | Transmission line of electricity wireless network instructs transmission method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710011287.1A CN106888073A (en) | 2017-01-06 | 2017-01-06 | Transmission line of electricity wireless network instructs transmission method |
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Family
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| CN201710011287.1A Pending CN106888073A (en) | 2017-01-06 | 2017-01-06 | Transmission line of electricity wireless network instructs transmission method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079654A (en) * | 2022-01-05 | 2022-02-22 | 荣耀终端有限公司 | Data retransmission method, system and related device |
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