CN115102580B - Information reporting method, device and equipment in power consumption information acquisition network - Google Patents
Information reporting method, device and equipment in power consumption information acquisition network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/546—Combination of signalling, telemetering, protection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- 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
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
- H04L1/0008—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length by supplementing frame payload, e.g. with padding bits
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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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of high-speed power line carriers, and provides an information reporting method, device and equipment in a power utilization information acquisition network. The information reporting method in the power utilization information acquisition network comprises the following steps: configuring a self reporting strategy according to the reporting mode of the lower node; the reporting strategy comprises the following steps: distributing the reporting time slot of the lower node in a reporting period according to the self condition; receiving a reported data frame of a lower node; generating corresponding bitmap information according to the receiving result, and sending the bitmap information to the subordinate node, wherein the subordinate node resends the reported data frame when the bitmap information indicates that the transmission is unsuccessful; extracting effective data in the reported data frame to generate the reported data frame of the current level; and sending the reported data frame of the current level according to the determined reported time slot. The implementation method provided by the invention can reduce invalid filling data, reduce the network bandwidth overhead and improve the network communication efficiency.
Description
Technical Field
The invention relates to the technical field of power communication, in particular to an information reporting method in a power consumption information acquisition network, an information reporting device in the power consumption information acquisition network, information reporting equipment in the power consumption information acquisition network and a computer readable storage medium.
Background
In an application scenario where multiple nodes need to actively report data in the same time period, STA nodes in a deeper networking level need to report step by step through a higher-level proxy node, and transmit a data message reported by a current STA node to a CCO master node. In the process, the proxy node of each level needs to forward the original data packet to the previous node step by step until the CCO receives the original data packet, each STA node needs to report the unicast report packet of the CCO through multiple rounds of contention before reaching the CCO, and the receiving end of the unicast packet needs to reply an acknowledgement frame to ensure communication reliability. Therefore, when a plurality of nodes in the network report high-real-time active data with small data volume, a large amount of CSMA time slot competition can be caused, a large amount of conflicts are generated, and the overall transmission efficiency of the network is reduced.
In the existing active reporting mode, the agent node at the current level needs to forward the data of the lower level node to the agent node at the previous level in a CSMA contention mode, and the forwarding is divided into a plurality of reporting frames, each uplink frame needs to contend with the STA node at the same level, and if there is a collision, the uplink frame needs to be avoided to ensure that the higher level node receives the data correctly. In an extreme case, when a node at the deepest level actively reports data, one round of CSMA competition reporting is required to be performed on each branch of the tree-structure network, and invalid filling data needs to be contained in each data frame due to the fact that the data volume of a single physical layer frame of high-speed power line carrier communication is fixed, and communication efficiency is extremely low.
Disclosure of Invention
The embodiment of the invention aims to provide an information reporting method, device and equipment in a power utilization information acquisition network, which can reduce collision back-off in the message transmission process, improve the transmission efficiency of the power utilization information acquisition network and optimize the network service quality and the real-time performance of data reporting through time slot allocation of a communication network and summary reporting of data messages in an application scene of high-frequency active data reporting of a plurality of STA nodes.
In order to achieve the above object, a first aspect of the present invention provides an information reporting method in an electricity information collection network, including: configuring a self reporting strategy according to the reporting mode of the lower node; the reporting strategy comprises the following steps: distributing the reporting time slot of the lower node in a reporting period according to the self condition; receiving a reported data frame of a lower node; generating corresponding bitmap information according to a receiving result, and sending the bitmap information to a subordinate node, wherein the bitmap information comprises information whether the reported data frame is successfully received or not, so that the subordinate node can resend the reported data frame when the reported data frame is not successfully received; extracting effective data in the reported data frame to generate the reported data frame of the current level; and sending the reported data frame of the current level according to the reported time slot allocated by the superior node.
Preferably, the method further comprises: and identifying the communication state of the subordinate node, and informing the central coordinator node to initiate network optimization when preset conditions are met.
Preferably, the method further comprises: after receiving a reported data frame, judging the priority of the reported data frame; when the priority of the reported data frame is 'high', encapsulating the reported data frame into the reported data frame of the current level; or when the priority of the reported data frame is 'high' and the reported overtime condition is met, adding the reported data frame into the latest reported data frame of the current level.
Preferably, the generating of the corresponding bitmap information according to the receiving result includes: and taking each bit value in the bitmap information as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received.
Preferably, the extracting valid data in the reported data frame to generate the reported data frame of the current level includes: determining the minimum sending frame number of the reported data frame of the current level in a preset time length according to the frame number of the reported data frame received in the preset time length, the byte length of the reported data frame and the byte length of the reported data frame of the current level; determining a preset frame number according to the frame number of the reported data frame received in a preset time length and the minimum sending frame number; and extracting effective data in a plurality of reported data frames of the preset frame to generate the reported data frame of the current level.
Preferably, the reporting time slot of the reporting data frame of the current stage is determined by the following steps: determining an optimal time slot allocation strategy according to the number of the conflict data frame frames in the preset time length and the busy hour time length of the reported channel; and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy.
In a second aspect of the present invention, there is provided an information reporting apparatus in a power consumption information acquisition network, applied to a proxy node in the power consumption information acquisition network, including: the strategy generating module is used for configuring the reporting strategy of the strategy generating module according to the reporting mode of the subordinate node; it includes the following sub-modules: a lower time slot distribution submodule for distributing the reporting time slot of the lower node in a reporting period according to the self condition; the data receiving submodule is used for receiving the reported data frame of the lower node; the bitmap indication submodule is used for generating corresponding bitmap information according to the receiving result and sending the bitmap information to the subordinate node, and the subordinate node resends the reported data frame when the bitmap information indicates that the transmission is unsuccessful; the data assembling submodule is used for extracting effective data in the reported data frame to generate the reported data frame of the current level; and the data sending submodule is used for sending the reported data frame of the current level according to the determined reporting time slot.
Preferably, the apparatus further comprises: and identifying the communication state of the subordinate node, and informing the central coordinator node to initiate network optimization when preset conditions are met.
Preferably, the apparatus further comprises: after receiving a reported data frame, judging the priority of the reported data frame; when the priority of the reported data frame is 'high', encapsulating the reported data frame into the reported data frame of the current level; or when the priority of the reported data frame is 'high' and the reporting overtime condition is met, adding the reported data frame into the latest reported data frame of the current level.
Preferably, the generating of the corresponding bitmap information according to the receiving result includes: and taking each bit value in the bitmap information as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received.
Preferably, the extracting valid data in the reported data frame to generate the reported data frame of the current level includes: determining the minimum sending frame number of the reported data frame of the current stage in the preset duration according to the frame number of the reported data frame received in the preset duration, the byte length of the reported data frame and the byte length of the reported data frame of the current stage; determining a preset frame number according to the frame number of the reported data frame received in a preset time length and the minimum sending frame number; and extracting effective data in a plurality of reported data frames of the preset frame to generate the reported data frame of the current level.
Preferably, the reporting time slot of the reporting data frame of the current stage is determined through the following steps: determining an optimal time slot allocation strategy according to the number of the conflict data frame frames in the preset time length and the busy hour time length of the reported channel; and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy.
In a third aspect of the present invention, an information reporting device in a power consumption information collection network is further provided, where the information reporting device includes a memory, a processor, and a program stored in the memory and capable of running on the processor, and when the processor executes the program, the step of implementing the information reporting method in the power consumption information collection network is implemented.
In a fourth aspect of the present invention, a computer-readable storage medium is further provided, where instructions are stored in the storage medium, and when the instructions are executed on a computer, the instructions cause the computer to perform the steps of the information reporting method in the electricity consumption information collection network.
A fifth aspect of the present invention provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the computer program implements the foregoing information reporting method in the power consumption information collection network.
The technical scheme at least has the following beneficial effects:
(1) The agent node can autonomously learn the reporting mode of the subordinate node and configure the reporting strategy of the agent node, CCO interference is not needed in the process, and the burden of CCO is reduced.
(2) The proxy nodes collect the reported data of the subordinate nodes in a reporting period and then combine the data frames, and the combined data frames are reported to the subordinate nodes, but not every reported data frame is forwarded, so that invalid filling data can be reduced, network bandwidth overhead is reduced, and network communication efficiency is improved.
(3) The proxy node can distribute the reporting time slot of the subordinate node in a reporting period according to the self condition, reduce the collision and back-off of the subordinate node when reporting data as much as possible, and can reserve more bandwidth for other services.
(4) The proxy node can identify the communication state of the subordinate node and inform the CCO node to initiate network optimization if necessary so as to improve the communication efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 schematically shows an implementation diagram of an information reporting method in a power consumption information acquisition network according to an embodiment of the present invention;
FIG. 2 schematically illustrates an exemplary power usage information collection communication network architecture, according to an embodiment of the present invention;
fig. 3 schematically shows a frame structure of a reported data frame before optimization according to an embodiment of the present invention;
fig. 4 schematically shows a frame structure of an optimized reported data frame according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a normal process of information reporting in a power consumption information collection network according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a retransmission scenario in information reporting in a power consumption information acquisition network according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating another retransmission scenario in information reporting in an electrical information collection network according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of another power consumption information collection network architecture according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating the flow of raw network data prior to optimization in an embodiment of the invention;
FIG. 10 is a schematic diagram illustrating an optimized network data flow according to an embodiment of the invention;
FIG. 11 is a diagram schematically illustrating channel occupancy before optimization by a proxy node in accordance with an embodiment of the present invention;
FIG. 12 is a diagram schematically illustrating channel occupancy after optimization by a proxy node according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram illustrating an information reporting apparatus in a power consumption information collection network according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 schematically shows an implementation diagram of an information reporting method in a power consumption information collection network according to an embodiment of the present invention. As shown in fig. 1. The method comprises the following steps: configuring a self reporting strategy according to the reporting mode of the lower node; the reporting strategy comprises the following steps:
s01, distributing the reporting time slot of the lower node in a reporting period according to the self condition;
s02, receiving a reported data frame of a lower node;
s03, generating corresponding bitmap information according to a receiving result, and sending the bitmap information to a lower node, wherein the bitmap information comprises information whether the reported data frame is successfully received or not, so that the lower node resends the reported data frame when the reported data frame is not successfully received;
s04, extracting effective data in the reported data frame to generate the reported data frame of the current level;
and S05, sending the reported data frame of the current level according to the reported time slot distributed by the superior node.
Fig. 2 schematically illustrates an exemplary electricity consumption information collecting local communication network architecture according to an embodiment of the present invention. As shown in fig. 2, the master node CCO serves as a central coordinator to maintain the entire carrier network, STA nodes access the network, only nodes in adjacent hierarchies can communicate directly, for example, STA node in hierarchy 1 can communicate directly with CCO, STA node in higher hierarchy communicates with CCO through STA proxy node in the previous hierarchy, wherein the nodes in the same hierarchy under the same proxy node are in a collision domain.
Fig. 3 schematically shows a frame structure of a reported data frame before optimization according to an embodiment of the present invention. If N data are required to be reported and the original reporting frame is as shown in fig. 3, if the reporting frame of the subordinate node is not optimized, the proxy node directly forwards the reporting frame to the superior node after receiving the reporting frame of the subordinate node, and since the load data amount of a single physical layer frame of the high-speed power line carrier communication is fixed, the single physical layer frame needs to be sent to the superior node together with invalid filling data.
Fig. 4 schematically shows a frame structure of an optimized reported data frame according to an embodiment of the present invention. The format of the data frame assembled by the proxy node after optimization is shown in fig. 4, which illustrates the situation that a single physical layer frame load can bear N reported data, and combines effective data contained in the N originally reported data frames together to fill the physical layer frame load, including the effective data required to be transmitted by the current proxy node, and sends the combined data frame to the upper node, so that the protocol overhead during communication can be reduced, the invalid filling data of each physical layer frame can be reduced, and the transmission efficiency can be improved.
In some embodiments of the present invention, the preset number of frames is determined by: determining the minimum sending frame number of the reported data frame of the current level in a preset time length according to the frame number of the reported data frame received in the preset time length, the byte length of the reported data frame and the byte length of the reported data frame of the current level; and determining the preset frame number according to the frame number of the reported data frame received in the preset time length and the minimum sending frame number. Specifically, the STA proxy node adjusts the reporting scheme according to the learning of the data reporting mode, and the optimization process is as follows:
the STA agent node counts the time of a reporting roundT s Total number of data frames received and reported inNum(F total ) Reporting data byte length of single node primary eventL sd For determining a preset number of framesNum(F data ). Also count the total number of conflicting data framesNum(F collision ) Total time of busy channel operation ∑T busy For the report conflict optimization of the data of the subordinate node.
According to the total number of data framesNum(F total ) Reporting data byte length of single node primary eventL sd And the physical layer frame load data under the current communication mode has a fixed length ofL phy The minimum frame number which should be reported to the superior node by the agent node of the current level after the data combination and the packaging optimization under the normal reporting state can be calculatedNum(F upload )。
Num(F upload ) = ⌈ L sd ×(Num(F total )+1)/ L phy ⌉
In the formula, \\ 8968; \ 8969', is an upward rounding operation. After optimization, the current proxy node needs to report the round timeT s Internal reportingNum(F upload ) The frame data is sent to the upper node, and the quantity of the single node reporting data carried in each reporting frame is at leastNum(F data ) I.e. the preset frame number.
Num(F data ) =⌈ Num(F upload )/ (Num(F total )+1) ⌉
Therefore, the proxy node needs to receiveNum(F data ) The data combination packing is carried out once after the reported data frames of the subordinate nodes are processed, the data to be reported of the node is added into the last frame, and the data reported by all the subordinate nodes and the data to be reported can be ensured to pass through within one round of reporting timeNum(F upload ) All frame uplink data are sent to the superior node, uplink bandwidth occupation can be reduced to the maximum extent, and combined optimization of data reporting is achieved.
In some embodiments of the present invention, the reporting timeslot is determined by: determining an optimal time slot allocation strategy according to the number of the conflict data frame frames in the preset time length and the busy hour time length of the reported channel; and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy. Specifically, the proxy node reports the round time according to the current timeT s Total number of data frames in which collisions are detectedNum(F collision ) Total time of busy channel operation ∑T busy Fine tuning time slots of data reported by subordinate nodes, grouping the nodes for each subordinate node through proxy beacon broadcast, allocating different active reporting time slots for each node grouping in a reporting period as much as possible so as to avoid competition conflict when the subordinate nodes report actively, adjusting time slot allocation by optimizing a feedback control method, counting at the same time, detecting whether the adjustment effect is improved, and gradually enabling the adjustment effect to be improvedNum(F collision ) Convergence to the minimum degree, and the total time sigma of the busy channel is reducedT busy 。
In some embodiments of the invention, the method further comprises: after receiving a reported data frame, judging the priority of the reported data frame; when the priority of the reported data frame is 'high', encapsulating the reported data frame into the reported data frame of the current level; or when the reporting overtime condition is met, adding the reported data frame into the latest reported data frame of the current level. The present embodiment provides a data priority management policy. The data normally collected and reported according to turns is low-priority data because different events have different priorities; when a special emergency occurs in a node, data needs to be reported to a main node as soon as possible, and at the moment, the reported data frame has higher priority and can wait without being limited by a general data reporting strategy.
According to a common report optimization strategy, in a report period, after receiving low-priority data reported by a subordinate STA node, a proxy node combines other data into a physical layer data frame according to a report strategy and reports the data frame together, and when the reported data volume of the subordinate STA node collected by the proxy node reaches the bearing limit of a single physical layer frame or the preset data size or the interval time of receiving the reported data exceeds the preset time limit, the proxy node continuously reports the data package to the superior proxy STA node. In the process, if a data frame with high priority is received, the proxy node immediately forwards and reports the data to a superior node; or reporting to the superior node following the latest data combination reporting frame under the condition of meeting the overtime condition of reporting the high-priority data so as to ensure the real-time property of reporting the high-priority data.
In some embodiments of the invention, the method further comprises: after the reported data frame is received, generating corresponding bitmap information according to a receiving result; and each bit value in the bitmap information is used as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received. The embodiment provides a reporting success rate guarantee strategy to guarantee the success rate of bar selling. Specifically, the proxy STA node collects and packages the reported data result information at a certain period, broadcasts the data receiving result information to all lower-level STA nodes in a bitmap mode, the lower-level STA nodes are used for confirming the data reporting result information, the lower-level STA nodes automatically judge whether the upper-level nodes correctly receive the reported information, whether repeated reporting is needed or not is determined, and an ACK response is not needed to be sent by each frame; the lower STA node judges whether the data sent by the node is correctly received by the upper node according to the received bitmap information of the data reporting result, if the reporting fails, the processing can be judged according to the real-time requirement of the reported data, the current reported data can be selected to be retransmitted immediately, or the reported data which fails last time is carried in the reported frame during the data reporting of the next period is reported together, and the data is retransmitted by the upper node to supplement the missing data. If a certain STA node does not receive the result broadcast message sent by the superior node after the multiple rounds of reporting are finished, it indicates that the reporting process or the carrier network is abnormal and the data cannot be reported normally, and at this time, the node should actively go off-line and re-send the association request to access the network, and optimize the network transmission state to ensure the success rate of data reporting.
Fig. 5 is a schematic diagram illustrating a normal process of reporting information in the power consumption information collection network according to an embodiment of the present invention. As shown in fig. 5, for example, given that STA0 manages 4 nodes, STA1, STA2, STA3, and STA4, in a reporting period, STA0 is in a predetermined timeout period T timeout After receiving the correct reported data of 4 nodes, the corresponding bitmap flag bit is set to be '1', after receiving all the expected reported frames, the receiving confirmation bitmap '1111' is broadcast to all the subordinate nodes, and after receiving the report frame, the subordinate STA detects the corresponding bitmap flag bit, so that whether the reported frame is correctly received by the superior node or not can be known.
In some embodiments of the invention, the method further comprises: and if the bitmap information of the father node is not received in a preset time length or the received bitmap information is analyzed to obtain the result of 'unsuccessfully receiving', retransmitting the reported data frame of the current level.
Fig. 6 is a schematic diagram illustrating a retransmission scenario in information reporting in a power consumption information collection network according to an embodiment of the present invention. As shown in FIG. 6, if STA0 is not within the predetermined timeout T timeout If all data is correctly received, it will be at T timeout After the time point arrives, the current receiving condition is broadcasted, and after the lower-level STA node receives the current receiving condition, whether the reporting frame is correctly received by the upper-level node or not can be known, and whether retransmission is carried out or not can be determined. Particularly, if the lower STA node does not receive the reception result packet broadcast by the upper STA node within the predetermined time, it is default that the self report packet is not successfully received, and retransmission will also be performed. Fig. 6 shows the reporting process when the retransmission occurs, where STA3 reports that the data is not correctly received by STA0 and the timeout T is T timeout Upon arrival, STA0 broadcasts bitmap data of "1011" to the lower node, indicating that the data of STA3 was not correctly received. After receiving the bitmap data, the STA3 knows that the last reported message is not successfully delivered, and will actively initiate retransmission, and after receiving all data correctly, the STA0 broadcasts the received result to complete the round of reporting.
Fig. 7 is a schematic diagram illustrating another retransmission scenario in information reporting in a power consumption information collection network according to an embodiment of the present invention. Another situation where retransmission occurs is shown in fig. 7 as follows: after receiving the reported data of all nodes, STA0 broadcasts "1111" bitmap data to the subordinate nodes. At this time, the STA1, the STA3, and the STA4 correctly receive the broadcast message, the STA2 does not correctly receive the broadcast message due to interference, and the like, and when the STA2 does not detect a reception result message within a predetermined time, it also considers that the last message is not successfully delivered, and initiatively initiates retransmission, and when the STA0 receives a retransmission message of the STA2 and there is no new data to be reported within a period of time, the STA will reinitiate broadcast, and broadcast the reception state to the lower node, and after all nodes correctly receive the broadcast, this round of reporting is completed.
Typically, in a reporting period, the upper node allows a maximum of 3 reported retransmissions, broadcasts the three reported reception results to the lower STA node at most, and has a maximum total timeout time (3 × T) timeout ). If all 3 retransmissions fail, the node is determined to have failed in the report. If the reporting data sent by a node in the next round of reporting period is not successfully received by the node in the previous round, the unsuccessfully reported data and the new round of reporting data are combined and reported in the next reporting period, that is, the nth and the nth rounds are reportedAnd (4) uploading the (N + 1) rounds of reported data after combined packaging, and if the reporting round is not successfully reported yet, continuing to perform the packaged uploading by analogy. If the node fails to complete the report after 5 continuous reporting periods, the corresponding node is considered to be abnormal, network optimization needs to be carried out again, and the abnormal event is notified to the main node in a high-priority event reporting mode for processing.
When the preset conditions are met, the central coordinator node is informed to initiate network optimization, and the method further comprises the following steps: when a new node accesses the network, in response to receiving a correlation request of the new node, recalculating the minimum sending frame number in the preset time length; and if the recalculated minimum sending frame number is larger than the original minimum sending frame number, re-determining the preset frame number according to the recalculated minimum sending frame number. The embodiment provides a data reporting scheme adjustment strategy. In the strategy, the influence of the new slave node on the information reporting method in the whole power utilization information acquisition network when the new slave node accesses the network is considered. When a new slave node accesses the network, the corresponding STA agent node can sense the network access event of the new node and dynamically adjust the data collection scheme, so that the new network access node can also convert the unordered competitive report into the planned report according to the mechanism, and the whole network is prevented from being influenced.
In an optimized and stable data reporting strategy network, after a new node needing to be accessed to the network receives an agent beacon sent by an agent node, the node sends an association request to the agent node. In the original reporting strategy, the original node number is set asN org Reporting length of single-node dataL sd Physical layer frame fixed length ofL phy All subordinate nodes report data in a round and need to send the number of physical layer frames to the superior nodeFN phyorg = ⌈N org ×L sd 8969g. After the new node is added, the number of the subordinate nodes becomesN new ，FN phynew = ⌈N new ×L sd \ 8969;, ifFN phynew = FN phyorg If the node is a new network-accessing node, the strategy of packet-reporting data to the upper-level node does not need to be changed, and only the agent beacon at the current level needs to be adjusted to allocate a reporting time slot with lower collision probability to the new network-accessing node. If the new node is accessed to the network, the agent node of the current level needs to send the number of the physical layer frames to the superior nodeFN phynew > FN phyorg If so, the data combination strategy needs to be re-optimized, and the data combination reported by the subordinate nodes is distributed to the nodes with the quantity ofFN phynew The higher node also needs to adjust and optimize step by step according to the number of the increased data packets, and then converges the reporting strategy of the whole network to the state with optimal efficiency again.
As will be appreciated by those skilled in the art: the steps between an agent node and its child nodes in the above embodiments may also apply between the parent node of the agent node and the agent node, and vice versa.
The technical solution of the present invention is described below with specific examples. Fig. 8 is a schematic diagram illustrating another power consumption information collecting network architecture according to an embodiment of the present invention. As shown in fig. 8, a CCO master node is divided into 3 network levels, wherein the total network includes 15 STA slave nodes. The total network has 4 proxy nodes, wherein STA11 is a proxy node of STA21 and STA22, STA12 is a proxy node of STA23, STA24, STA25 and STA26, STA22 is a proxy node of STA31, STA32 and STA33, and STA25 is a proxy node of STA34, STA35 and STA 36.
After the power consumption information acquisition communication network is subjected to topology optimization and stabilization, the CCO starts active reporting of data of the whole network, and at the moment, all network nodes are in a competitive reporting state, taking the proxy node STA12 as an example, received uplink reporting messages come from 7 slave nodes, namely STA23, STA24, STA25, STA26, STA34, STA35 and STA36, wherein the reporting messages of the STA34, STA35 and STA36 are forwarded through the STA 25. The reported data of 7 nodes need to be received by STA12 after CSMA competition, and then the data message is forwarded to the upper node, and the length of the data message of each node is set asL sd The physical layer frame load data is fixed lengthL phy Assuming that in the current communication modeL phy =（L sd ×10）。
Firstly, the STA25 node will count the reporting time frequency of the lower node STA34, STA35 and STA36, and the normal reporting interval isTsInitially, in the case ofTsIn the time period of (3), the 3 nodes will perform contention report in the CSMA time slot, and the STA25 forwards the report to the upper level. In the present case, along with the data of the STA25 itself, the STA25 needs to report 4 times of length of STA25 in one round of reportingL phy To STA12 node and needs to perform CSMA contention. The STA25 can optimize its own data collection policy after several rounds of reporting, and package the data after waiting for the reported data messages of the STA34, the STA35, and the STA36 to be received in the Ts time window, and package the data together with the data to be reported by itself with 4 lengths of the data to be reportedL phy Is filled to a length ofL phy And the physical layer frames are combined into a single data packet to be uploaded. The STA12 node also learns the reporting policy of the STA25 node in the process, and the combined packet reported by the STA25 and the total data length of the STA23, STA24 and STA26 nodes are (7 is a data unit)L sd ) Are combined into a message with the length ofL phy And reporting the data packet to the superior node. STA12 in time periodTsAfter the data reported by STA23, STA24, STA25, STA26, STA34, STA35 and STA36 are collected, the data required to be reported is added, and then the data is combined and packaged, and the interval isTsAnd sending a round of reporting data frames to the CCO. Therefore, the total number of frames in the same collision domain can be reduced, the number of frames of a physical layer is reduced, the length of filling data is reduced, and the communication efficiency is improved.
Fig. 9 schematically shows an original network data flow diagram before optimization according to an embodiment of the present invention, and fig. 10 schematically shows a network data flow diagram after optimization according to an embodiment of the present invention. As can be seen from fig. 9 and 10, after the optimization strategy proposed by the present proposal is adopted, the number of frames between power consumption information acquisition network layers is greatly reduced, and originally 8 nodes from STA12 need to have a length of L phy Physical layer ofThe data frame can report the completed data, only one length is L after the recombination of the frame data domain phy The data frame of the physical layer can be reported and completed, so that invalid data occupied by the physical layer is reduced, the reliability of communication is greatly improved, the network communication overhead is reduced, and the communication efficiency is improved.
If the lower node of the current proxy node fails to complete reporting within a specified time within a Ts period due to communication interference and the like and is in a reporting overtime state, the current proxy node should identify an overtime node with poor communication condition, fill data received in the last reporting period of the node, continue to execute an original reporting process, and send combined data to a higher node, so as to prevent a reporting time sequence of the whole network from being disturbed due to a failure of a certain node and influence the reporting instantaneity. And if the reporting success rate is too low, actively informing the CCO node to initiate network optimization.
Meanwhile, the agent node optimizes the reporting time slot of the lower node in the process, adjusts the reporting delay of the lower node, distributes the reporting delay in different time slots as much as possible, reduces network conflict overhead, and can make more effective bandwidth available for other network services.
Taking STA25 as an example, fig. 11 schematically shows a channel occupation diagram before a proxy node is optimized according to an embodiment of the present invention; fig. 12 is a schematic diagram illustrating a channel occupation diagram after optimization by a proxy node according to an embodiment of the present invention. As can be seen in fig. 11 and 12: after the strategy is adopted, the lower node is informed of the data needing to be reported to carry out delay processing and is distributed to different reporting time slots, the cost of the competition backoff network originally needed by several rounds of conflicts can be effectively reduced, more bandwidth can be reserved for other services, and the bearing capacity of the network is enhanced.
Based on the same invention concept, the invention also provides an information reporting device in the power utilization information acquisition network. Fig. 13 is a schematic structural diagram of an information reporting apparatus in an electrical information collection network according to an embodiment of the present invention, as shown in fig. 13. An information reporting device in a power utilization information acquisition network is applied to an agent node in the power utilization information acquisition network, and a strategy generation module is used for configuring a self reporting strategy according to a reporting mode of a subordinate node; it includes the following sub-modules: a lower time slot distribution submodule used for distributing the reporting time slot of the lower node in a reporting period according to the self condition; the data receiving submodule is used for receiving the reported data frame of the lower node; a bitmap indication sub-module, configured to generate corresponding bitmap information according to a receiving result, and send the bitmap information to a lower node, where the bitmap information includes information about whether the reported data frame is successfully received, so that the lower node retransmits the reported data frame when the reported data frame is unsuccessfully received; the data assembling submodule is used for extracting effective data in the reported data frame to generate the reported data frame of the current level; and the data sending submodule is used for sending the reported data frame of the current level according to the determined reporting time slot.
In some optional embodiments, the apparatus further comprises: and identifying the communication state of the subordinate node, and informing the central coordinator node to initiate network optimization when preset conditions are met.
In some alternative embodiments the apparatus further comprises: after receiving a reported data frame, judging the priority of the reported data frame; when the priority of the reported data frame is 'high', packaging the reported data frame into the reported data frame of the current level; or when the priority of the reported data frame is 'high' and the reported overtime condition is met, adding the reported data frame into the latest reported data frame of the current level.
In some optional embodiments, generating the corresponding bitmap information according to the receiving result includes: and taking each bit value in the bitmap information as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received.
In some optional embodiments, extracting valid data in the reported data frame to generate the reported data frame of the current stage includes: determining the minimum sending frame number of the reported data frame of the current level in a preset time length according to the frame number of the reported data frame received in the preset time length, the byte length of the reported data frame and the byte length of the reported data frame of the current level; determining a preset frame number according to the frame number of the reported data frame received in a preset time length and the minimum sending frame number; and extracting effective data in the plurality of the reported data frames of the preset frame to generate the reported data frame of the current level.
In some optional embodiments, the reporting timeslot of the reporting data frame of the current stage is determined by: determining an optimal time slot allocation strategy according to the number of the conflict data frame frames in the preset time length and the busy hour time length of the reported channel; and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy.
The specific limitations of each functional module in the information reporting apparatus in the power consumption information acquisition network may refer to the limitations of the information reporting method in the power consumption information acquisition network, which are not described herein again. The various modules in the above-described apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In some embodiments provided by the present invention, an information reporting device in a power consumption information collection network is further provided, and includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the steps of the information reporting method in the power consumption information collection network when executing the computer program. The processor herein has functions of numerical calculation and logical operation, and it has at least a central processing unit CPU having data processing capability, a random access memory RAM, a read only memory ROM, various I/O ports, an interrupt system, and the like. The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. One or more than one kernel can be set, and the method is realized by adjusting kernel parameters. The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
In an embodiment of the present invention, a computer-readable storage medium is further provided, where instructions are stored, and when the instructions are executed on a computer, the instructions cause a processor to be configured to execute the above-mentioned information reporting method in a power consumption information collecting network.
In an embodiment provided by the present invention, a computer program product is provided, which includes a computer program, and when the computer program is executed by a processor, the computer program implements the information reporting method in the electricity consumption information collection network.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (14)
1. An information reporting method in a power utilization information acquisition network is applied to active information reporting of communication nodes in the power utilization information acquisition network, and is characterized by comprising the following steps:
configuring a self reporting strategy according to the reporting mode of the lower node; the reporting strategy comprises the following steps: distributing the reporting time slot of the lower node in a reporting period according to the self condition; receiving a reported data frame of a lower node; generating corresponding bitmap information according to a receiving result, and sending the bitmap information to a lower node, wherein the bitmap information comprises information about whether the reported data frame is successfully received or not, so that the lower node resends the reported data frame when the reported data frame is not successfully received; extracting effective data in the reported data frame to generate the reported data frame of the current level; and sending the reported data frame of the current level according to the reported time slot allocated by the superior node.
2. The method of claim 1, further comprising: and identifying the communication state of the subordinate node, and informing the central coordinator node to initiate network optimization when preset conditions are met.
3. The method of claim 1, further comprising: after receiving a reported data frame, judging the priority of the reported data frame;
when the priority of the reported data frame is 'high', packaging the reported data frame into the reported data frame of the current level; or alternatively
And when the priority of the reported data frame is high and the reporting overtime condition is met, adding the reported data frame into the latest reported data frame of the current level.
4. The method of claim 1, wherein generating the corresponding bitmap information according to the receiving result comprises:
and taking each bit value in the bitmap information as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received.
5. The method of claim 1, wherein extracting valid data from the reported data frame to generate a current level reported data frame comprises:
determining the minimum sending frame number of the reported data frame of the current stage in the preset duration according to the frame number of the reported data frame received in the preset duration, the byte length of the reported data frame and the byte length of the reported data frame of the current stage;
determining a preset frame number according to the frame number of the reported data frame received in a preset time length and the minimum sending frame number;
and extracting effective data in a plurality of reported data frames of the preset frame to generate the reported data frame of the current level.
6. The method of claim 1, wherein the reporting timeslot of the current level of reported data frames is determined by:
determining an optimal time slot allocation strategy according to the number of frames of conflict data frames in a preset time length and the busy hour time length of a reported channel;
and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy.
7. An information reporting device in a power consumption information acquisition network is applied to the active reporting of information of communication nodes in the power consumption information acquisition network, and is characterized by comprising the following components:
the strategy generating module is used for configuring the reporting strategy of the strategy generating module according to the reporting mode of the subordinate node; it includes the following sub-modules:
a lower time slot distribution submodule for distributing the reporting time slot of the lower node in a reporting period according to the self condition;
the data receiving submodule is used for receiving the reported data frame of the lower node;
the bitmap indication submodule is used for generating corresponding bitmap information according to the receiving result and sending the bitmap information to the lower node, and the lower node resends the reported data frame when the bitmap information indicates that the transmission is unsuccessful;
the data assembling submodule is used for extracting effective data in the reported data frame to generate the reported data frame of the current level; and
and the data sending submodule is used for sending the reported data frame of the current level according to the reported time slot distributed by the superior node.
8. The apparatus of claim 7, further comprising: and identifying the communication state of the subordinate node, and informing the central coordinator node to initiate network optimization when preset conditions are met.
9. The apparatus of claim 7, further comprising: after receiving a reported data frame, judging the priority of the reported data frame;
when the priority of the reported data frame is 'high', packaging the reported data frame into the reported data frame of the current level; or alternatively
And when the priority of the reported data frame is high and the reporting overtime condition is met, adding the reported data frame into the latest reported data frame of the current level.
10. The apparatus of claim 7, wherein generating the corresponding bitmap information according to the receiving result comprises:
and taking each bit value in the bitmap information as a bitmap identification bit for identifying whether the reported data frame sent by the corresponding child node is successfully received.
11. The apparatus of claim 7, wherein extracting valid data from the reported data frame to generate the reported data frame of the current stage comprises:
determining the minimum sending frame number of the reported data frame of the current level in a preset time length according to the frame number of the reported data frame received in the preset time length, the byte length of the reported data frame and the byte length of the reported data frame of the current level;
determining a preset frame number according to the frame number of the reported data frame received in a preset time length and the minimum sending frame number;
and extracting effective data in the plurality of the reported data frames of the preset frame to generate the reported data frame of the current level.
12. The apparatus of claim 7, wherein the reporting timeslot of the current stage of the reported data frame is determined by:
determining an optimal time slot allocation strategy according to the number of frames of conflict data frames in a preset time length and the busy hour time length of a reported channel;
and determining the reporting time slot of the reporting data frame of the current stage according to the optimal time slot allocation strategy.
13. An information reporting device in a power consumption information collection network, comprising a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement the steps of the information reporting method in the power consumption information collection network according to any one of claims 1 to 6.
14. A computer-readable storage medium, having stored therein instructions, which, when run on a computer, cause the computer to perform the steps of the information reporting method in a power information collection network according to any one of claims 1 to 6.
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