HPLC and HRF dual-mode communication network access method

Abstract

The application discloses a kind of HPLC and HRF dual-mode communication network access methods, comprising the following steps: obtaining electric meter information, and the electric meter information is introduced into main station;System power on, select electric meter inside dual-mode module channel;Dual-mode module sends network access request to concentrator, and the information of dual-mode module that concentrator will send network access request and the serial number of concentrator itself is reported to main station;Through main station, the network access decision of electric meter inside dual-mode module is made, to complete network access.The application solves the technical problem of how to accurately and effectively unify the management of network access of electric meter node.

Description

Technical Field

[0001] This invention relates to the field of smart grid communication technology, and in particular to a dual-mode communication network access method using HPLC and HRF. Background Technology

[0002] HPLC, or High-Speed ​​Power Line Carrier, is widely deployed globally for smart metering and other applications. While HPLC can connect to nearly 99% of devices, complete connectivity is still not possible. To address this challenge, some consortia have developed a hybrid technology combining HPLC with HRF to enhance stability, reliability, and robustness. By selecting the optimal medium at any point in the network, system coverage and connectivity can be maximized. The improved network coverage and connectivity of HPLC and HRF have brought new challenges to on-site network management. Traditional HPLC networks are limited by the network medium and signal penetration capabilities; typically, a concentrator in a transformer network can only communicate with meters connected to that transformer. However, with the addition of wireless HRF communication, the network boundaries defined by transformers are disrupted. Wireless HRF communication is not limited by transformers, allowing meters in network PAN-A to communicate with meters in network PAN-B. Therefore, the original transformer-based network architecture is not well-suited to the new communication method. Furthermore, distributed management via wireless HRF can cause crosstalk between different transformer areas and weaken network robustness. In scenarios where some data is missing, manual troubleshooting is difficult. If a concentrator malfunctions, all meters connected to that concentrator will be unable to collect data, leading to data loss. Therefore, there is an urgent need to propose a dual-mode HPLC and HRF communication network access method to solve the technical problem of accurately and effectively managing the network access of meter nodes. Summary of the Invention

[0003] The main objective of this invention is to provide a dual-mode communication network access method using HPLC and HRF, aiming to solve the technical problem of how to accurately and effectively manage the network access of electricity meter nodes in a unified manner.

[0004] To achieve the above objectives, the present invention provides a method for accessing a dual-mode communication network using HPLC and HRF, wherein the method includes the following steps:

[0005] S1. Obtain the electricity meter information and import the electricity meter information into the main station;

[0006] S2. Power on the system and select the dual-mode module channel in the meter.

[0007] S3. The dual-mode module sends a network access request to the concentrator. The concentrator then reports the information of the dual-mode module that sent the network access request, as well as the concentrator's own serial number, to the main station.

[0008] S4. The main station makes a network access decision for the dual-mode module inside the meter, thereby completing the network access.

[0009] In one preferred embodiment, the meter information includes the dual-mode module address, the meter serial number, and the communication key.

[0010] One preferred embodiment is that in step S2, the dual-mode module channel within the electricity meter is selected, specifically as follows:

[0011] Determine if the electricity meter has historical communication records;

[0012] If the meter has historical communication records, the HPLC channel or HRF channel will be selected for communication based on those records; if the meter does not have historical communication records, the default HPLC channel or HRF channel will be selected for communication.

[0013] In one preferred embodiment, in step S3, the dual-mode module sends a network access request to the concentrator. Specifically, the dual-mode module automatically obtains the concentrators in the network, forms a concentrator list, and sends a network access request to the concentrator with the strongest signal quality.

[0014] In one preferred embodiment, the network access request includes the dual-mode module address, meter serial number, HPLC channel or HRF channel type, signal quality, and routing level information.

[0015] In one preferred embodiment, after the dual-mode module sends a network access request to the concentrator in step S3, the method further includes:

[0016] The concentrator determines whether the address of the dual-mode module is in the concentrator's whitelist;

[0017] If present, the concentrator receives the network access request sent by the dual-mode module;

[0018] If not, the concentrator rejects the network access request sent by the dual-mode module. The dual-mode module then initiates a network access request again at the first interval. If rejected again, it sends a network access request to the next concentrator in the concentrator list, and so on.

[0019] One preferred embodiment is that step S4, which involves the master station making a network access decision for the dual-mode module within the meter, includes:

[0020] The maximum number of files can be set for the concentrator through the main station. If the number of files in the concentrator reaches the maximum number, the network access request of the dual-mode module in the electricity meter will be rejected.

[0021] One preferred embodiment is that step S4, which involves the master station making a network access decision for the dual-mode module within the meter, includes:

[0022] If the main station receives network access requests from the same dual-mode module through multiple concentrators, it will distribute the meter file that sent the network access request to the concentrator that first reported the network access request, according to the first-to-first-distribute strategy; if the number of files in the concentrator reaches the maximum number of files, the files will be distributed to the next concentrator in sequence.

[0023] One preferred embodiment is that step S4, which involves the master station making a network access decision for the dual-mode module within the meter, includes:

[0024] If the master station detects that the dual-mode module sending the network access request has already connected to another concentrator or sends the network access request in the second time interval, it will reject the network access request of the dual-mode module in the meter.

[0025] In one preferred embodiment, after step S4 makes the network access decision for the dual-mode module within the meter through the master station, it further includes:

[0026] The concentrator receives the meter records from the master station, updates the meter records to the concentrator's whitelist, and responds to the master station.

[0027] In the above technical solution of the present invention, the HPLC and HRF dual-mode communication network access method includes the following steps: acquiring meter information and importing the meter information into the master station; powering on the system and selecting the channel of the dual-mode module within the meter; the dual-mode module sending a network access request to the concentrator, and the concentrator reporting the information of the dual-mode module sending the network access request and its own serial number to the master station; and the master station making a network access decision for the dual-mode module within the meter, thereby completing the network access. The present invention solves the technical problem of how to accurately and effectively manage the unified network access of meter nodes.

[0028] In this invention, the dual-mode module intelligently switches between the HPLC channel and the HRF channel, and attempts to connect to surrounding concentrators in turn. Even if a single channel is unavailable or some concentrators are damaged, it will not affect the normal communication between the meter and the main station, greatly improving the reliability of the network.

[0029] In this invention, the dual-mode module actively sends a network access request to the concentrator, and then the main station makes a network access decision based on the file distribution strategy. No manual intervention is required, which eliminates the tedious step of recording the correspondence between the electricity meter and the concentrator at the installation site, resulting in higher installation efficiency.

[0030] In this invention, when replacing the electricity meter or the dual-mode module within the meter, the dual-mode module only needs to actively initiate a network access request to the concentrator, and the main station can make a network access decision to enable the meter's access. There is no need to manually configure the meter file on the concentrator. At the same time, the ownership relationship of the meter file can be dynamically configured. If a concentrator is damaged, the electricity meters under that concentrator will automatically initiate a network access request to other concentrators to avoid data loss. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a first schematic diagram of an HPLC and HRF dual-mode communication network access method according to an embodiment of the present invention;

[0033] Figure 2 This is a second schematic diagram of an HPLC and HRF dual-mode communication network access method according to an embodiment of the present invention;

[0034] Figure 3 This is a network access timing diagram for the dual-mode module inside the electricity meter according to an embodiment of the present invention;

[0035] Figure 4 This is a third schematic diagram of an HPLC and HRF dual-mode communication network access method according to an embodiment of the present invention.

[0036] The realization of the objective, functional characteristics and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0040] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0041] See Figures 1-4 According to one aspect of the present invention, the present invention provides a method for accessing a dual-mode communication network of HPLC and HRF, wherein the method for accessing a dual-mode communication network of HPLC and HRF includes the following steps:

[0042] S1. Obtain the electricity meter information and import the electricity meter information into the main station;

[0043] S2. Power on the system and select the dual-mode module channel in the meter.

[0044] S3. The dual-mode module sends a network access request to the concentrator. The concentrator then reports the information of the dual-mode module that sent the network access request, as well as the concentrator's own serial number, to the main station.

[0045] S4. The main station makes a network access decision for the dual-mode module inside the meter, thereby completing the network access.

[0046] Specifically, in this embodiment, the information of the electricity meters and the dual-mode modules within the meters in the area to be installed is obtained, which is the electricity meter information. The electricity meter information includes the dual-mode module address, the electricity meter serial number, and the communication key. The electricity meter information is then imported into the main station in batches via files.

[0047] Specifically, in this embodiment, step S2, selecting the dual-mode module channel within the meter, involves: determining whether the meter has historical communication records; powering on the meter and performing initialization, first completing a self-test, then reading accessory parameters and historical communication records of successful network access from external Flash, and then reading the meter's serial number as the module address; if the meter has historical communication records, then prioritizing the selection of the HPLC channel or HRF channel for communication based on these records; when the HPLC channel cannot meet the minimum communication threshold, automatically switching to the HRF channel for communication; similarly, when the HRF channel cannot meet the minimum communication threshold, automatically switching to the HPLC channel for communication; if the meter has no historical communication records, then selecting the default HPLC channel or HRF channel for communication; specifically, if there are no historical communication records or root... If access fails based on historical communication records, the dual-mode module uses the default HPLC or HRF channel to monitor and record beacon signals in the network. Condition 1: If more than N beacon signals have been received from a certain concentrator (N is 10 in this invention, but not limited thereto, and can be set as needed); Condition 2: If no concentrator meeting condition 1 appears after a preset time, but beacon signals from any concentrator have been received, as long as either condition 1 or condition 2 is met, the dual-mode module will calculate the communication rate with the concentrator that sent the beacon signal and select the meter with the best communication rate and routing level close to the CCO in the concentrator as the relay node; the CCO is the dual-mode master module integrated in the concentrator; then the dual-mode module in the meter sends a network access request to the selected target concentrator to initiate the network access process.

[0048] Specifically, in this embodiment, the dual-mode module sends a network access request to the concentrator in step S3 as follows: after determining the communication channel, the dual-mode module automatically obtains the concentrators in the network, forms a concentrator list, and sends a network access request to the concentrator with the strongest signal quality; the network access request includes the dual-mode module address, meter serial number, HPLC channel or HRF channel type, signal quality, and routing level information.

[0049] Specifically, in this embodiment, after the dual-mode module sends a network access request to the concentrator in step S3, the method further includes: the concentrator determining whether the address of the dual-mode module is in the concentrator's whitelist; if it is, the concentrator receives the network access request sent by the dual-mode module; if it is not, the concentrator rejects the network access request sent by the dual-mode module, and the dual-mode module initiates a network access request again at a first interval. If it is rejected again, the communication channel is switched to attempt access twice. If access still fails after switching the communication signal, a network access request is sent to the next concentrator in the concentrator list, and this process is repeated until network access is successful. In this invention, the first interval is 5 minutes. This invention does not impose a specific limitation and can be set according to needs. Since the concentrator does not have the meter file at this time, it will reject the access request. If there is no communication for 24 consecutive hours, the dual-mode module actively disconnects from the network and switches to the target concentrator for access.

[0050] Specifically, in this embodiment, the concentrator reports the information of the dual-mode module that sent the network access request and the concentrator's own serial number to the cloud master station via 4G network TCP / IP, so that the master station can make network access decisions.

[0051] Specifically, in this embodiment, step S4, which makes network access decisions for the dual-mode module within the meter through the master station, includes: a maximum file control strategy, which sets a maximum number of files for different concentrators in different distribution areas through the master station. If the number of files in a concentrator reaches the maximum number of files, the network access request of the dual-mode module within the meter is rejected. The maximum number of files is configured to be the same value by default, and the maximum number of files can be set manually or automatically.

[0052] Specifically, in this embodiment, step S4, which involves the main station making a network access decision for the dual-mode module within the meter, includes: a first-upload-first-download strategy. If the main station receives network access requests from the same dual-mode module reported by multiple concentrators, the meter file that sent the network access request is sent to the concentrator that first reported the network access request, according to the first-upload-first-download strategy. If the number of files in the concentrator reaches the maximum number of files, the files are sequentially sent to the next concentrator.

[0053] Specifically, in this embodiment, step S4, which makes a network access decision for the dual-mode module within the meter through the master station, includes a minimum time interval strategy: if the master station detects that the dual-mode module sending the network access request has already connected to another concentrator or sends the network access request in the second time interval, then the network access request of the dual-mode module within the meter is rejected to prevent the meter from frequently switching between concentrators.

[0054] Specifically, in this embodiment, after step S4 makes a network access decision for the dual-mode module within the meter through the master station, it further includes: the concentrator receives the meter file issued by the master station, updates the meter file to the concentrator's whitelist, and responds to the master station; subsequently, if the dual-mode module attempts to access the network again due to retries, polling, power-on, or other reasons, it can be re-added to the current concentrator, which already has the meter file stored in it, and then allows the meter to access the network. When the dual-mode module within the meter successfully accesses the network, it records the communication channel and concentrator serial number used in the external Flash memory for priority selection during the next access; after completing the entire network access process, the dual-mode module can legally perform subsequent data transmission and communication.

[0055] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for accessing a HPLC and HRF dual-mode communication network, characterized in that, The method comprises the following steps: S1, obtaining the meter information and importing the meter information into the master station; S2, powering on the system and selecting the dual-mode module channel in the meter; specifically: determining whether the meter has historical communication records, powering on the meter to perform initialization work, first completing self-checking, then reading configuration parameters and historical communication records of successful network access from the external Flash, and then reading the serial number of the meter as the module address; if the meter has historical communication records, preferentially selecting the HPLC channel or the HRF channel for communication according to the historical communication records; when the HPLC channel cannot meet the minimum threshold value of communication, automatically switching to the HRF channel for communication; similarly, when the HRF channel cannot meet the minimum threshold value of communication, automatically switching to the HPLC channel for communication; if the meter has no historical communication records, selecting the default HPLC channel or HRF channel for communication; specifically: if there is no historical communication record or access fails according to the historical communication record, the dual-mode module uses the default HPLC channel or HRF channel to listen to the beacon signal in the network and record statistics, condition 1: if the number of received beacon signals from any concentrator is more than N; condition 2: if no concentrator meeting condition 1 appears within a preset time, but any concentrator's beacon signal is received, as long as condition 1 or condition 2 is met, the dual-mode module will calculate the communication rate with the concentrator sending the beacon signal and select the best communication rate, and the meter with a routing level close to the CCO in the concentrator is selected as a relay node; the CCO is a dual-mode master module integrated in the concentrator; then the dual-mode module in the meter sends a network access request to the selected target concentrator and starts the network access process; S3, the dual-mode module sends a network access request to the concentrator, and the concentrator reports the information of the dual-mode module sending the network access request and the sequence number of the concentrator itself to the master station; S4, making a network access decision for the dual-mode module in the meter through the master station, thereby completing network access.

2. The HPLC and HRF dual-mode communication network access method of claim 1, wherein, The meter information includes the dual-mode module address, the meter serial number and the communication key.

3. The HPLC and HRF dual-mode communication network access method according to any one of claims 1-2, characterized in that, In step S3, the dual-mode module sends a network access request to the concentrator, specifically: the dual-mode module automatically acquires the concentrators in the network, forms a concentrator list, and sends a network access request to the concentrator with the strongest signal quality.

4. The HPLC and HRF dual-mode communication network access method of claim 3, wherein, The network access request includes the dual-mode module address, the meter serial number, the HPLC channel or HRF channel type, the signal quality, and the routing level information.

5. The HPLC and HRF dual-mode communication network access method of claim 3, wherein, After the dual-mode module sends a network access request to the concentrator in step S3, it further includes: the concentrator determines whether the dual-mode module address is in the white list of the concentrator; if yes, the concentrator receives the network access request sent by the dual-mode module; if no, the concentrator rejects the network access request sent by the dual-mode module, the dual-mode module initiates a network access request again after a first interval of time, and if it is rejected again, sends a network access request to the next concentrator in the concentrator list, and the process is repeated.

6. The HPLC and HRF dual-mode communication network access method according to any one of claims 1-2, characterized in that, In step S4, making a network access decision for the dual-mode module in the meter through the master station includes: The master station sets the maximum number of profiles for the concentrator, and if the number of profiles of the concentrator reaches the maximum number of profiles, the network access request of the dual-mode module in the electric meter is rejected.

7. The HPLC and HRF dual-mode communication network access method of claim 6, wherein, The step S4 includes: If the master station receives the network access requests of the same dual-mode module reported through multiple concentrators, according to the first-reporting-first-issuing strategy, the electric meter profile sending the network access request is issued to the concentrator that reports the network access request earliest; if the number of profiles of the concentrator reaches the maximum number of profiles, the electric meter profile is issued to the next concentrator in turn.

8. The HPLC and HRF dual-mode communication network access method of claim 6, wherein, The step S4 includes: If the master station detects that the dual-mode module sending the network access request has accessed another concentrator or sends the network access request in the second time interval, the network access request of the dual-mode module in the electric meter is rejected.

9. The HPLC and HRF dual-mode communication network access method according to any one of claims 1-2, characterized in that, The step S4 includes: The concentrator receives the electric meter profile issued by the master station, updates the electric meter profile to the white list of the concentrator, and replies to the master station.

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