A method and system for collecting electric energy meter information based on dual-mode communication technology
By setting up HPLC and HRF communication functions in the low-voltage distribution network and selecting optimized communication channels using linear weighting method, the poor communication quality caused by network congestion is solved, minute-level collection of power meter information is realized, and the power company's ability to manage electricity consumption information is improved.
Patent Information
- Application Number
- CN202411770036.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2044-12-04
AI Technical Summary
The prior art has poor communication quality caused by network congestion in low-voltage distribution networks, making it difficult to achieve minute-level collection of power meter information. Especially in large-scale power meter station areas, the acquisition time of dual-mode communication channels is relatively long and cannot meet the high-frequency power consumption information collection needs.
By setting up HPLC and HRF communication functions in the CCO dual-mode communication module of the concentrator and the STA dual-mode communication module of the power meter, and selecting the optimized main communication channel and auxiliary communication channel during the calibration process, the linear weighting method is used to allocate channel resources to ensure that the use of communication channels is optimized while maintaining the integrity of the collected data and avoiding network congestion.
It realizes the collection of power meter information at high frequency in low-voltage distribution networks, avoids collection failures caused by network congestion, improves communication quality, and ensures the timely collection and management of power consumption information by power companies.
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Figure CN119233124B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric power data collection and transmission, and in particular to an electric energy meter information collection method and system based on dual-mode communication technology. Background Art
[0002] Since the construction of the low-voltage distribution network user electricity consumption information collection system, it has gone through the stages of narrowband carrier technology, broadband carrier technology, and high-speed carrier technology, and has now entered the technical era of HPLC+HRF dual-mode communication. With the development of technology, the requirements for collection are getting higher and higher. Not only are there more and more data items to be collected, but the frequency of collection is also increasing. For example, at the beginning, only conventional power data was required to be collected, and later it was required to collect multiple data such as forward active power, reverse active power, voltage, current, power factor, frequency, etc. The collection frequency also changed from once a day to once an hour, and then to once every 15 minutes, to support the power company management department to analyze user needs, achieve refined management, and improve service quality. Now power companies in some provinces have begun to try to collect electricity consumption information once a minute to further improve the management level. However, in a low-voltage distribution station area, there are dozens of users at least, and more than 500 users at most. When a concentrator collects electricity consumption information of hundreds of electric energy meters at the minute level, it can only be achieved by using concurrent meter reading under ideal conditions with excellent communication quality.
[0003] In the field environment, due to the use of various electrical equipment, there are various interferences in the power grid that affect the communication quality, causing network congestion or collection failure. The uncertainty factors of this interference in time and amplitude are very large, and the dual-mode communication network relies on two communication channels to collect data. Although the accuracy is high, the collection time in large-scale meter areas is large due to the large amount of dual-channel collection data, and the processing time will be significantly increased. Therefore, in most cases, the system cannot achieve minute-level collection of electricity consumption information. For example, the data collection method and data collection system based on the dual-mode communication network introduced in the published patent application document with publication number CN118301503A mainly accurately collect the clock information of the data message, and collect data based on the modified clock information of the CCO module and the clock information of the STA module, but how to allocate the communication channels in the dual-mode communication channel is not introduced. The present invention selects and allocates the channels in the dual-mode channel according to the time calibration results while calibrating the time, and also improves the problem of poor communication quality caused by network congestion. Summary of the invention
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an electric energy meter information collection method and system based on dual-mode communication technology, which is used to solve the technical problem of poor communication quality caused by network congestion in the prior art.
[0005] To achieve the above object, the present invention provides an electric energy meter information collection method and system based on dual-mode communication technology, comprising the following steps:
[0006] The CCO dual-mode communication module of the concentrator and the STA dual-mode communication module of the electric energy meter are both equipped with HPLC high-speed power line carrier communication function and HRF high-speed micro-power wireless communication function;
[0007] The concentrator and the electric energy meter are respectively subjected to CCO dual-mode communication module time calibration, STA dual-mode communication module time calibration, main communication channel selection and data reception and supplementary sampling processing;
[0008] Finally, the data of all electric energy meters are collected;
[0009] The specific method of selecting the main communication channel is as follows:
[0010] The CCO dual-mode communication module of the concentrator simultaneously sends collection instructions to all electric energy meters through the HPLC channel and the HRF channel and receives data fed back from the STA dual-mode communication module, and makes the following judgments to configure the main communication channel;
[0011] Set the acquisition time to t, where t<T, and T is the communication cycle between the energy meter and the concentrator;
[0012] Obtain the number of electric energy meters n1 and n2 collected by the HPLC channel and the HRF channel in time t, and the number of relay layers b1 and b2 during the collection process;
[0013] The time and number of relay layers corresponding to the collection of all electric energy meters by the HPLC channel and the HRF channel are obtained, thereby obtaining the linear relationship between the number of electric energy meters, the collection time and the relay layer when the HPLC channel and the HRF channel are used as the main communication channels, and the linear weighted method is used to assign weights α1, β1, γ1, α2, β2, γ2 to the number of electric energy meters, the collection time and the relay layer;
[0014] The main communication channel is selected by comparing the sizes of the HPLC channel as the main communication channel (α1×n1+γ1×b1) / β1×t and the HRF channel as the main communication channel (α2×n2+γ2×b2) / β2×t.
[0015] Further: The specific method of calibrating the time of the CCO dual-mode communication module is as follows:
[0016] The system master sends a data packet with the sending time signal T1 to the CCO dual-mode communication module of the concentrator; the CCO dual-mode communication module receives the data packet with the time signal T1 and performs the following operations:
[0017] The time T2 of receiving the data packet and the time T3 of sending the data packet are added to the data packet and sent back to the system master station;
[0018] The system master station records the time T4 of receiving the data packet, and calculates T4-T3, T2-T1 and T3-T2 respectively, thereby obtaining the signal transmission time T4-T3, T2-T1 of sending the signal from the system master station to the concentrator and the time T3-T2 of processing the data packet in the concentrator respectively;
[0019] When T4-T3=T2-T1, it means the concentrator time is accurate;
[0020] When T4-T3≠T2-T1, it indicates that the time of the concentrator is inaccurate and needs to be reassigned. The system master station sends a data packet with the current time signal to the concentrator again. The time signal + (T4-T3+T2-T1) / 2 in the data packet is the time value reassigned to the concentrator.
[0021] Since the concentrator delay is easily affected by many factors, the most common ones are: communication protocol, data transmission rate, internal task delay of the concentrator, delay caused by different data retransmission strategies, etc.; therefore, every time the system master station sends a collection request to the concentrator, the concentrator needs to be calibrated to ensure that the time information of the received data is accurate.
[0022] Further: The specific method of STA dual-mode communication module time calibration is as follows:
[0023] Establish a sending and receiving sequence table for the concentrator and the electric energy meter, and configure the time for the STA communication module in the electric energy meter according to the sending and receiving sequence table;
[0024] The table according to the sending and receiving sequence includes: the number of electric energy meters and the task cycle of the electric energy meter time calibration;
[0025] The energy meter time calibration task cycle is determined by the number of energy meters, the communication time of each energy meter and the communication cycle, specifically: the communication time between the collection concentrator and all individual energy meters , where i is the i-th electric energy meter among n electric energy meters;
[0026] The communication cycle is determined by the number n of electric energy meters, specifically: T = (T3-T2) × n;
[0027] For a single electric energy meter, the configuration time of the STA communication module is the time of the CCO dual-mode communication module of the concentrator after the time calibration + ;
[0028] The time calibration function of the STA dual-mode communication module is usually implemented through broadcast time calibration. Usually, the broadcast time calibration mechanism does not require programming keys and communication passwords, and requires that the date and clock of the electric energy meter and the time difference of the concentrator are within ±5 minutes to perform time calibration; in the case of multiple electric energy meters, the time calibration function of the traditional STA dual-mode communication module will cause the error of the collected data set to be distributed within adjacent 10 minutes, which cannot meet the requirements of accurate collection. Therefore, a separate time calibration method is designed for each electric energy meter to ensure that the data of multiple electric energy meters collected by the concentrator at the same time are fed back at the same time.
[0029] Further: the selection of the main communication channel is specifically as follows:
[0030] (α1×n1+γ1×b1) / β1×t>(α2×n2+γ2×b2) / β2×t, then the HPLC channel is the main communication channel and the HRF channel is the auxiliary communication channel;
[0031] (α1×n1+γ1×b1) / β1×t<(α2×n2+γ2×b2) / β2×t, then the HRF channel is the main communication channel and the HPLC channel is the auxiliary communication channel;
[0032] (α1×n1+γ1×b1) / β1×t=(α2×n2+γ2×b2) / β2×t, then the channel with more collected electric energy meters is preferentially selected as the main communication channel, that is, n1 and n2 are compared; n1>n2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; n1<n2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; if n1=n2, then the channel with fewer relay layers is selected as the main communication channel, that is, b1 and b2 are compared; b1>b2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; b1<b2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; b1=b2, then arbitrarily select one of the HPLC channel and the HRF channel as the main communication channel, and the other as the auxiliary communication channel;
[0033] Although the dual-mode communication channel simultaneously collects data to ensure the integrity of the collected data, it is easy to be affected by various interferences in the power grid and thus affect the communication quality when facing large-scale electricity meter data collection. Especially in the case of minute-level information collection, excessive data volume can easily cause network congestion and lead to collection failure. At this time, if the system has other tasks, they will not be executed in time. If the electricity meter has important information that needs to be actively reported, it will not be able to report it in time. Therefore, under the condition of keeping the collected data complete, it is necessary to allocate the main collection communication channel and the auxiliary collection communication channel; the main communication channel is given priority as the main channel for electricity meter information collection, and the auxiliary communication channel can also be used as other command tasks, electricity meter active reporting of information and data reception supplementary collection channel.
[0034] Further: the specific method of receiving supplementary data is as follows:
[0035] Determine the cycle of the concentrator collecting electric energy meters;
[0036] Determine the main communication channel and the auxiliary communication channel in the HRF channel and the HPLC channel;
[0037] The HRF channel and the HPLC channel collect all the electric energy meter information at least twice according to the cycle of the concentrator collecting the electric energy meter, and divide them into several data packets according to the difference of the collection channels and different collection cycles;
[0038] Compare the collected data of the main communication channel and the auxiliary communication channel in the same cycle, and mark the electric energy meter data collected by the auxiliary communication channel that is not collected by the main communication channel for subsequent data reception and supplementary collection;
[0039] The auxiliary communication channel between the electric energy meter corresponding to the unmarked electric energy meter data and the concentrator is closed;
[0040] When the main communication channel fails to collect data due to special reasons, the auxiliary communication channel is enabled to collect data, which not only maintains the integrity of the data but also saves collection time.
[0041] Furthermore: there is a time limit for receiving and supplementing the data;
[0042] The time limit setting is configured according to the storage capacity and transmission rate of the STA dual-mode communication module;
[0043] The transmission rate includes: a physical layer communication peak rate and an application layer communication peak rate;
[0044] The time limit is the sum of the storage capacity of the STA dual-mode communication module divided by the physical layer communication peak rate and the storage capacity of the STA dual-mode communication module divided by the application layer communication peak rate.
[0045] The present invention also provides an electric energy meter information collection system based on dual-mode communication technology, comprising: a concentrator, a plurality of electric energy meters and a system master station;
[0046] The concentrator is connected to the system master station via remote communication;
[0047] The system master station includes a readable storage medium, and the readable storage medium stores and executes the above-mentioned method for collecting electric energy meter information based on dual-mode communication technology;
[0048] The concentrator also includes a CCO dual-mode communication module;
[0049] The CCO dual-mode communication module communicates with the electric energy meter via dual-mode HPLC high-speed power line carrier communication and HRF high-speed micro-power wireless communication;
[0050] The electric energy meter comprises a STA dual-mode communication module.
[0051] Further: the STA dual-mode communication module includes a storage unit;
[0052] The storage unit includes a storage medium provided by the main chip and an externally extended storage medium;
[0053] In order to ensure that the data collected in the subsequent supplementary collection work is accurate, a storage function is added to the STA dual-mode communication module to store the data collected within a period of time, so that when the main channel collection fails, accurate data can still be obtained when the auxiliary channel is enabled for secondary collection.
[0054] The beneficial effects of the present invention are: while accurately collecting information of electric energy meters, by reasonably setting the means of allocating communication channel resources through the main communication channel, interference problems caused by a multi-electric energy meter power grid are avoided; the problem of missing collection caused by network congestion caused by a large amount of data is solved; and the problem of slow verification of dual-channel data after collection is completed is solved by means of supplementary collection. BRIEF DESCRIPTION OF THE DRAWINGS
[0055] In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the drawings required for use in the embodiments and the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0056] Figure 1 A flow chart of the system acquisition of the present invention;
[0057] Figure 2 It is a system schematic diagram of the present invention. DETAILED DESCRIPTION
[0058] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.
[0059] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can be applied to other similar scenarios based on these drawings without any creative work.
[0060] In addition, it can be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in this application, some design, manufacturing or production changes based on the technical contents disclosed in this application are just conventional technical means and should not be understood as the contents disclosed in this application are insufficient.
[0061] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.
[0062] See also Figure 1 , the system flow chart of the present invention comprises:
[0063] Concentrator: The CCO dual-mode communication module of the concentrator and the STA dual-mode communication module of the electric energy meter are both equipped with HPLC high-speed power line carrier communication function and HRF high-speed micro-power wireless communication function;
[0064] Perform CCO dual-mode communication module time calibration, STA dual-mode communication module time calibration, main communication channel selection and data reception and supplementary sampling processing on the concentrator and electric energy meter respectively;
[0065] Finally, the data of all electricity meters are collected.
[0066] Specifically:
[0067] First, to ensure that the collected data remains accurate and consistent, the system master station sends instructions to calibrate the CCO dual-mode communication module of the concentrator and the STA dual-mode communication module of the energy meter. The specific method of calibrating the CCO dual-mode communication module is as follows:
[0068] The system master sends a data packet with the sending time signal T1 to the CCO dual-mode communication module of the concentrator; the CCO dual-mode communication module receives the data packet with the time signal T1 and performs the following operations:
[0069] The time T2 of receiving the data packet and the time T3 of sending the data packet are added to the data packet and sent back to the system master station;
[0070] The system master station records the time T4 of receiving the data packet, and calculates T4-T3, T2-T1 and T3-T2 respectively, thereby obtaining the signal transmission time T4-T3, T2-T1 of sending the signal from the system master station to the concentrator and the time T3-T2 of processing the data packet in the concentrator respectively;
[0071] When T4-T3=T2-T1, it means the concentrator time is accurate;
[0072] When T4-T3≠T2-T1, it indicates that the time of the concentrator is inaccurate and needs to be reassigned. The system master station sends a data packet with the current sending time signal to the concentrator again. The time signal + (T4-T3+T2-T1) / 2 in the data packet is the time value reassigned to the concentrator.
[0073] The specific method of STA dual-mode communication module time calibration is as follows:
[0074] Establish a sending and receiving sequence table for the concentrator and the electric energy meter, and configure the time for the STA communication module in the electric energy meter according to the sending and receiving sequence table;
[0075] The table according to the receiving and sending sequence includes: the number of electric energy meters and the task cycle of the electric energy meter calibration;
[0076] The energy meter calibration task cycle is determined by the number of energy meters, the communication time of each energy meter and the communication cycle. Specifically, the communication time between the collection concentrator and all individual energy meters , where i is the i-th electric energy meter among n electric energy meters;
[0077] The communication cycle is determined by the number of electric energy meters n, specifically: T = (T3-T2) × n;
[0078] For a single electric energy meter, the configuration time of the STA communication module is the time of the CCO dual-mode communication module of the concentrator after the time calibration + .
[0079] After the time calibration is completed, in order to avoid multiple interferences affecting the communication quality and the network congestion caused by the excessive amount of data collected by the subsequent dual channels and the long time to verify the return data of the dual channels, the main communication channel and the auxiliary communication channel are set for collection and supplementary collection respectively. The main communication channel setting method is as follows:
[0080] The CCO dual-mode communication module of the concentrator simultaneously sends collection instructions to all electric energy meters through the HPLC channel and the HRF channel and receives data fed back from the STA dual-mode communication module, and makes the following judgments to configure the main communication channel;
[0081] Set the acquisition time to t, where t<T, and T is the communication cycle between the energy meter and the concentrator;
[0082] Obtain the number of electric energy meters n1 and n2 collected by the HPLC channel and the HRF channel in time t, and the number of relay layers b1 and b2 during the collection process;
[0083] The time and number of relay layers corresponding to the collection of all electric energy meters by the HPLC channel and the HRF channel are obtained, thereby obtaining the linear relationship between the number of electric energy meters, the collection time and the relay layer when the HPLC channel and the HRF channel are used as the main communication channels, and the linear weighted method is used to assign weights α1, β1, γ1, α2, β2, γ2 to the number of electric energy meters, the collection time and the relay layer;
[0084] Compare the size of the HPLC channel as the main communication channel (α1×n1+γ1×b1) / β1×t and the HRF channel as the main communication channel (α2×n2+γ2×b2) / β2×t to select the main communication channel, which is selected according to the following rules:
[0085] (α1×n1+γ1×b1) / β1×t>(α2×n2+γ2×b2) / β2×t, then the HPLC channel is the main communication channel and the HRF channel is the auxiliary communication channel;
[0086] (α1×n1+γ1×b1) / β1×t<(α2×n2+γ2×b2) / β2×t, then the HRF channel is the main communication channel and the HPLC channel is the auxiliary communication channel;
[0087] (α1×n1+γ1×b1) / β1×t=(α2×n2+γ2×b2) / β2×t, then the channel with more collected electric energy meters is preferentially selected as the main communication channel, that is, n1 and n2 are compared; n1>n2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; n1<n2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; if n1=n2, then the channel with fewer relay layers is selected as the main communication channel, that is, b1 and b2 are compared; b1>b2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; b1<b2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; b1=b2, then arbitrarily select one of the HPLC channel and the HRF channel as the main communication channel, and the other as the auxiliary communication channel; the auxiliary communication channel here is mainly used for data reception and supplementary acquisition.
[0088] The need for data collection is due to the fact that when facing multiple electric energy meters, the channel set as the main communication channel in the dual-mode communication method may fail to collect data due to special reasons. At this time, it is necessary to enable the auxiliary communication channel to collect data to maintain the integrity of the data. However, the auxiliary communication channel takes a long time to collect data from all electric energy meters again, and most of the data is overlapped with the data collected normally by the main communication channel. The verification time of the system master station will also increase accordingly. The specific method for receiving and collecting data is as follows:
[0089] Determine the cycle of the concentrator collecting electric energy meters;
[0090] Determine the main communication channel and the auxiliary communication channel in the HRF channel and the HPLC channel;
[0091] The HRF channel and the HPLC channel collect all the electric energy meter information at least twice according to the cycle of the concentrator collecting the electric energy meter, and divide them into several data packets according to the difference of the collection channels and different collection cycles;
[0092] Compare the data collected by the main communication channel and the auxiliary communication channel in the same cycle, mark the electric energy meter data collected by the auxiliary communication channel that is not collected by the main communication channel, and use it for subsequent data reception and as a communication channel for other task instructions. Other task instructions include: remote fee control (electricity meter disconnection and disconnection) instructions due to user arrears, active reporting of electric energy meter overcurrent, etc.
[0093] When only the supplementary collection task is performed, the auxiliary communication channel between the electric energy meter corresponding to the unmarked electric energy meter data and the concentrator is closed;
[0094] And the data supplementary collection is not unlimited cyclic collection, and there is a corresponding time limit; the time limit setting is based on the storage capacity of the STA dual-mode communication module and the transmission rate configuration; the transmission rate includes: the physical layer communication peak rate and the application layer communication peak rate; the time limit is the sum of the storage capacity of the STA dual-mode communication module divided by the physical layer communication peak rate and the storage capacity of the STA dual-mode communication module divided by the application layer communication peak rate.
[0095] See also Figure 2 , is a schematic diagram of the system of the present invention, comprising:
[0096] Concentrator, several electric energy meters and system master station; the concentrator is connected to the system master station through remote communication, the concentrator also includes a CCO dual-mode communication module, the electric energy meter includes a STA dual-mode communication module, the STA dual-mode communication module includes a storage unit composed of a storage medium provided by the main chip and an externally extended storage medium; the CCO dual-mode communication module communicates with the electric energy meter through dual-mode HPLC high-speed power line carrier communication and HRF high-speed micro-power wireless communication.
[0097] The above is a very detailed description of one or more embodiments of the present invention, but the content is only a specific example of the present invention and cannot be considered to limit the scope of application of the present invention. Any other methods and changes proposed based on the content of the present invention should fall within the scope of patent protection of the present invention.
Claims
1. A method for collecting electric energy meter information based on dual-mode communication technology, characterized in that: include: The CCO dual-mode communication module of the concentrator and the STA dual-mode communication module of the electric energy meter are both equipped with HPLC high-speed power line carrier communication function and HRF high-speed micro-power wireless communication function; The concentrator and the electric energy meter are respectively subjected to CCO dual-mode communication module time calibration, STA dual-mode communication module time calibration, main communication channel selection and data reception and supplementary sampling processing; Finally, the data of all electric energy meters are collected; The specific method of selecting the main communication channel is as follows: The CCO dual-mode communication module of the concentrator simultaneously sends collection instructions to all electric energy meters through the HPLC channel and the HRF channel and receives data fed back from the STA dual-mode communication module, and makes the following judgments to configure the main communication channel; Set the acquisition time to t, where t<T, and T is the communication cycle between the energy meter and the concentrator; Obtain the number of electric energy meters n1 and n2 collected by the HPLC channel and the HRF channel in time t, and the number of relay layers b1 and b2 during the collection process; The time and number of relay layers corresponding to the collection of all electric energy meters by the HPLC channel and the HRF channel are obtained, thereby obtaining the linear relationship between the number of electric energy meters, the collection time and the relay layer when the HPLC channel and the HRF channel are used as the main communication channels, and the linear weighted method is used to assign weights α1, β1, γ1, α2, β2, γ2 to the number of electric energy meters, the collection time and the relay layer; The main communication channel is selected by comparing the sizes of the HPLC channel as the main communication channel (α1×n1+γ1×b1) / β1×t and the HRF channel as the main communication channel (α2×n2+γ2×b2) / β2×t.
2. The method for collecting electric energy meter information based on dual-mode communication technology according to claim 1, characterized in that: The specific method of calibrating the time of the CCO dual-mode communication module is as follows: The system master sends a data packet with the sending time signal T1 to the CCO dual-mode communication module of the concentrator; the CCO dual-mode communication module receives the data packet with the time signal T1 and performs the following operations: The time T2 of receiving the data packet and the time T3 of sending the data packet are added to the data packet and sent back to the system master station; The system master station records the time T4 of receiving the data packet, and calculates T4-T3, T2-T1 and T3-T2 respectively, thereby obtaining the signal transmission time T4-T3, T2-T1 of sending the signal from the system master station to the concentrator and the time T3-T2 of processing the data packet in the concentrator respectively; When T4-T3=T2-T1, it means the concentrator time is accurate; When T4-T3≠T2-T1, it indicates that the time of the concentrator is inaccurate and needs to be reassigned. The system master station sends a data packet with the current sending time signal to the concentrator again. The time signal + (T4-T3+T2-T1) / 2 in the data packet is the time value reassigned to the concentrator.
3. The method for collecting electric energy meter information based on dual-mode communication technology according to claim 2 is characterized in that: The specific method of STA dual-mode communication module time calibration is as follows: Establish a sending and receiving sequence table for the concentrator and the electric energy meter, and configure the time for the STA communication module in the electric energy meter according to the sending and receiving sequence table; The table according to the sending and receiving sequence includes: the number of electric energy meters and the task cycle of the electric energy meter time calibration; The energy meter time calibration task cycle is determined by the number of energy meters, the communication time of each energy meter and the communication cycle, specifically: the communication time between the collection concentrator and all individual energy meters , where i is the i-th electric energy meter among n electric energy meters; The communication cycle is determined by the number n of electric energy meters, specifically: T = (T3-T2) × n; For a single electric energy meter, the configuration time of the STA communication module is the time of the CCO dual-mode communication module of the concentrator after the time calibration + .
4. The method for collecting electric energy meter information based on dual-mode communication technology according to claim 1, characterized in that: The selection of the main communication channel is as follows: (α1×n1+γ1×b1) / β1×t>(α2×n2+γ2×b2) / β2×t, then the HPLC channel is the main communication channel and the HRF channel is the auxiliary communication channel; (α1×n1+γ1×b1) / β1×t<(α2×n2+γ2×b2) / β2×t, then the HRF channel is the main communication channel and the HPLC channel is the auxiliary communication channel; (α1×n1+γ1×b1) / β1×t=(α2×n2+γ2×b2) / β2×t, then the channel with more collected electric energy meters is preferentially selected as the main communication channel, that is, n1 and n2 are compared; n1>n2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; n1<n2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; if n1=n2, then the channel with fewer relay layers is selected as the main communication channel, that is, b1 and b2 are compared; b1>b2, then the HRF channel is the main communication channel, and the HPLC channel is the auxiliary communication channel; b1<b2, then the HPLC channel is the main communication channel, and the HRF channel is the auxiliary communication channel; b1=b2, then arbitrarily select one of the HPLC channel and the HRF channel as the main communication channel, and the other as the auxiliary communication channel.
5. The method for collecting electric energy meter information based on dual-mode communication technology according to claim 1, characterized in that: The specific method of receiving supplementary data is as follows: Determine the cycle of the concentrator collecting electric energy meters; Determine the main communication channel and the auxiliary communication channel in the HRF channel and the HPLC channel; The HRF channel and the HPLC channel collect all the electric energy meter information at least twice according to the cycle of the concentrator collecting the electric energy meter, and divide them into several data packets according to the difference of the collection channels and different collection cycles; Compare the collected data of the main communication channel and the auxiliary communication channel in the same cycle, and mark the electric energy meter data collected by the auxiliary communication channel that is not collected by the main communication channel for subsequent data reception and supplementary collection; The auxiliary communication channel between the electric energy meter corresponding to the unmarked electric energy meter data and the concentrator is closed.
6. The method for collecting electric energy meter information based on dual-mode communication technology according to claim 5, characterized in that: There is a time limit for receiving and supplementing the data; The time limit setting is configured according to the storage capacity and transmission rate of the STA dual-mode communication module; The transmission rate includes: a physical layer communication peak rate and an application layer communication peak rate; The time limit is the sum of the storage capacity of the STA dual-mode communication module divided by the physical layer communication peak rate and the storage capacity of the STA dual-mode communication module divided by the application layer communication peak rate.
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