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CN112132538A - Photovoltaic power generation management system based on NB-IoT - Google Patents

Photovoltaic power generation management system based on NB-IoT Download PDF

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Publication number
CN112132538A
CN112132538A CN202010927610.1A CN202010927610A CN112132538A CN 112132538 A CN112132538 A CN 112132538A CN 202010927610 A CN202010927610 A CN 202010927610A CN 112132538 A CN112132538 A CN 112132538A
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data
power generation
information
terminal
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周广禄
杨淼
王伟
王翠华
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Harbin Institute of Technology Weihai
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Harbin Institute of Technology Weihai
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    • G06Q50/06—Energy or water supply
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y10/00—Economic sectors
    • G16Y10/35—Utilities, e.g. electricity, gas or water
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    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y20/00—Information sensed or collected by the things
    • G16Y20/20—Information sensed or collected by the things relating to the thing itself
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    • G16Y40/00—IoT characterised by the purpose of the information processing
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    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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Abstract

The invention discloses a photovoltaic power generation management system based on a Narrow-Band Internet of Things (NB-IoT), which comprises a terminal equipment module, an access gateway module, a service and application support module, an application management platform module and a log analysis module, wherein the terminal equipment module acquires information of each device through a sensor and reports data; the access gateway module realizes equipment connection by depending on a professional network and issues equipment configuration control information of the message processing center; the business and application support module is used for receiving the sensor data transmitted by the gateway module; the application management platform module provides functions of visual Internet of things terminal management, sensor data viewing, data analysis and data export; and the log analysis module is used for collecting and analyzing logs of all links of the system by adopting a log collection system. According to the invention, the dynamic feedback load balance is realized through the IP positioning service, the overall throughput rate of the cluster is improved, and the photovoltaic power generation management system can run efficiently.

Description

Photovoltaic power generation management system based on NB-IoT
Technical Field
The invention relates to the technical field of photovoltaic power generation systems, in particular to a photovoltaic power generation management system based on NB-IoT.
Background
The photovoltaic power generation management system obtains data through a large number of terminal devices, and manual factors such as untimely data reporting and sending, low data reliability and the like exist in manual on-site meter reading. In addition, at present, all traditional company enterprises access the produced internet of things equipment to a self-developed system or a third-party platform for function display and management, but the system quality levels are not uniform, the safety is great, the operation and maintenance systems of equipment manufacturers are incompatible, the photovoltaic system lacks a uniform operation and maintenance platform, and on the other hand, with the increase of the types and the number of the equipment, the expandability of the system and the stability of the system are subjected to bottlenecks. Meanwhile, in the era of the internet of things, the importance of data is increasingly prominent, and how to make the data exert greater value is a considerable problem, so that a photovoltaic power generation management platform which is centered on the data and highly available must be established.
Disclosure of Invention
The invention aims to provide a photovoltaic power generation management system to achieve high availability and high concurrency of the system.
The invention provides a photovoltaic power generation management system based on NB-IoT, which comprises: the system comprises a terminal equipment module, an IP positioning service module, a gateway access module, a business support and application support module, an application management platform module and a log analysis module, wherein the terminal equipment module is used for collecting and capturing information of a data collector in a photovoltaic system, reporting data and obtaining a configuration command through the access gateway module; the IP positioning service module is used for realizing reasonable distribution of traffic among a plurality of network devices, enhancing data processing capacity through a load balancing mechanism and preventing single-point faults; the access gateway module is used for issuing configuration control information of the message processing center and providing network access and transmission resource control; the business support and application support module is used for receiving the sensor data transmitted by the gateway module, unifying the message format, normalizing the data according to the configured rule and storing the data into a database; the application management platform module is used for providing visual Internet of things terminal management and data viewing; the log analysis module is used for collecting and analyzing logs generated by all links of the system, monitoring system flow and analyzing hotspot data.
Preferably, the database comprises three types, namely a data cache for caching data of the message processing center; data persistence, which is used for storing the device and sensor data of the application management platform module, user role authority data and operation log data; and the big data storage is used for storing the equipment uploading data from the message processing center after data normalization processing.
Preferably, the application management platform module comprises a dashboard submodule for displaying device information and device status; the terminal management submodule is used for displaying a terminal equipment list, adding terminal operation and simultaneously displaying the type of the sensor and the type of the equipment; the report statistics submodule is used for showing the equipment information in a chart form and exporting the equipment information in a report form; and the system management submodule is used for managing the roles of system users, setting sites and inquiring operation logs.
Preferably, the report statistics submodule comprises a real-time data submodule and a report statistics submodule, wherein the real-time data submodule is used for viewing the uploading information of the equipment and displaying the sensor amount in a chart form at different time intervals; the analysis and statistics submodule is used for checking the statistical information of the terminal equipment in a chart form; and the data export submodule is used for exporting the historical information of the equipment, and can select the exported data quantity and the exported time.
Preferably, the IP location service module is configured to implement a highly available and highly concurrent photovoltaic power generation management system through a load balancing mechanism based on dynamic feedback.
According to the photovoltaic power generation management system based on NB-IoT provided by the embodiment of the invention, the terminal equipment module is used for collecting and reporting sensor data, the IP positioning service module is used for realizing load balance so as to prevent single-point accidents and improve the high availability and high concurrency capability of the system, the access gateway module is used for issuing configuration control information of a message processing center so as to provide network access and transmission resource control, the business and application support module is used for receiving the sensor data transmitted by the gateway module and storing the sensor data into a database, the application management module is used for providing visual Internet of things terminal management and sensor data check, analyzing and exporting data reports, and the log analysis module is used for collecting and analyzing logs of all links of the system so as to timely expand the capacity of the system or degrade the service.
Drawings
FIG. 1 is an overall architecture diagram of the NB-IoT based photovoltaic power generation management system of the present invention;
FIG. 2 is an architecture diagram of an application management platform of the NB-IoT based photovoltaic power generation management system of the present invention;
fig. 3 is a diagram of the process of uploading and issuing protocol messages according to the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Fig. 1 is an overall architecture diagram of the NB-IoT based photovoltaic power generation management system of the present invention. As shown in fig. 1, the NB-IoT based photovoltaic power generation management system includes: a terminal equipment module 101, an IP positioning service module 102, an access gateway module 103, a business and application support module 104, an application management platform module 105 and a log analysis module 106.
The terminal device module 101 is configured to collect and capture information of a data collector in a photovoltaic system, report data, and obtain a configuration command through an access gateway module. Terminal equipment module 101 utilizes a plurality of sensor equipment of connecting on the terminal circuit board to acquire information such as electric quantity, power, the sensor is electric power ammeter, photovoltaic inverter etc, the terminal circuit board CAN realize finished product printed circuit board customization, supports different access network customizations, including 2G, 3G, 4G, WIFI transmission network, supports various interface customizations, including RS845, RS232, CAN etc, still supports simultaneously and lightly senses customization and retransmission and feels the customization, indicates that every circuit board optional access 1 kind of sensor or CAN insert multiple sensor simultaneously. The method comprises the following steps that a terminal circuit board receives a configuration command from an application platform management module, data reporting is carried out according to a set reporting data period, the application platform management module reads data through a private protocol control circuit board, and the specific process of data reporting is as follows: and the application management platform module issues a request protocol and a task triggering time rule, the terminal uploads data to the platform after triggering, and the platform analyzes the script to perform analysis processing. Fig. 3 is a diagram of a protocol message uploading and issuing process.
The IP location service module 102 is configured to perform load balancing to achieve the purposes of optimizing resource usage, maximizing throughput, minimizing response time, and avoiding overload. The IP location service module 102 determines which real server to forward the request to between the terminal device module 101 and the access gateway module 103, evaluates the capability of each node after a period of time by using a dynamic load balancing algorithm based on a negative feedback mechanism, continuously adjusts the proportion of task distribution by adopting a weighted polling mode and considering the real-time load and response capability of each node, and schedules the received request to avoid that a large number of requests are still received when some nodes are overloaded, thereby improving the overall throughput rate of a single cluster.
The access gateway module 103 is connected with terminal equipment in the photovoltaic system by relying on a professional network, issues equipment configuration control information of a message processing center, provides network access and transmission resource control functions, mobility management or equipment authentication and authorization, and supports national network protocols, ModBus protocols and other protocols. The terminal access is based on a UDP task download type and is divided into a user-defined transmission layer protocol and an application layer protocol, the application layer protocol adopts serial sending and receiving, namely after a request is sent, the next request can be sent only after a response is received, reliable transmission is achieved, and meanwhile, the repetition of application layer messages is avoided. The UDP task type issuing control adopts an off-line task mode, a browser is put into a database after being operated and is sent downwards from the database, a response of successful receiving is returned to a background after a terminal is on line and reads configuration from the database, and configuration cache is deleted from the database.
The service and application support module 104 is configured to receive the sensor data transmitted from the access gateway module 103, unify the message format, normalize the data according to the configured rule, and store the normalized data in the database. The specific process of reported data analysis comprises the following steps: after the sensing data are obtained, different analysis scripts are called through the sensor types, the analysis scripts are responsible for analyzing binary data segments into JSON formats, the data dictionary determines fields of the data, such as generated energy and the like, and then the fields are stored in a big data module database. The database comprises three types, namely a data cache, which is used for caching data of the message processing center; data persistence, which is used for storing the device and sensor data of the application management platform module, user role authority data and operation log data; and the big data storage is used for storing the equipment uploading data from the message processing center after data normalization processing.
The application management platform module 105 manages user permissions, users acquire system operation permissions according to roles, system safety is improved, visual internet of things terminal management and sensing data checking are provided, data reports are analyzed, and data generate values. The multi-tenant technology is utilized to realize the sharing of a unified management platform among a plurality of manufacturers, and meanwhile, the personalized customization among the manufacturers is realized, so that the sharing of the common part of the system is ensured, the personalized part is isolated, and the resource reuse rate is improved while the data is isolated.
As shown in fig. 2, the application management platform module 105 further includes an instrument panel module 1051, a terminal management module 1052, a report statistics module 1053, and a system management module 1054;
the instrument panel module 1051 includes a device status display module 10511 and a device information viewing module 10512, where the device status display module 10511 may display the total number of devices, the number of online devices, and the number of alarm devices in a status display area, where the device online indicates that the connection between the device and the server is successful, but the device does not necessarily report data or that the data report is normal, the device offline indicates that the connection between the device and the server is not established, and the device alarm indicates that the connection between the device is abnormal or abnormal data occurs. The device information viewing module 10512 may present information of the selected device on a map while presenting a series of sensing amounts of the device and a last update time, and click a refresh button may update the device information to a latest state.
The terminal management module 1052 includes a terminal list module 10521, an add terminal module 10522, a sensor type module 10523 and a device type module 10524, and the terminal management module 1052 can perform a keyword filtering operation to realize a fast search. The terminal list module 10521 can display detailed information of the terminal, including terminal numbers, device types, installation positions, related information of the SIM card, and the like, the adding terminal module 10522 displays the organization structure of the photovoltaic power generation management system and the added devices in a tree diagram manner, and can perform operations such as addition, modification, deletion, and the like of the organization, and after the terminal is successfully added, related operations of the sensor can be set, and a terminal reporting plan is edited, that is, the terminal transmits the acquired data to the platform according to the plan. The sensor type module 10523 displays information such as the name and model of the sensor, and can edit the analysis script and the data dictionary, modify the configuration of the sensor, and add a corresponding configuration script and analysis script every time a new sensor model is added. The device type module 10524 shows the device name, model, creation time, etc., and the device model refers to the pv netlist, the inverter, etc.
The report statistics module 1053 comprises a real-time data module 10531, an analysis statistics module 10532 and a data export module 10533. The real-time data module 10531 is used for checking the uploading information of the equipment and displaying the sensor amount in a chart form, and can screen data in different time periods, click the corresponding sensor amount and respectively draw different polyline statistical graphs. The analysis statistics module 10532 displays all sensor quantities of the corresponding sensors in a histogram form, and checks the statistical information of the corresponding devices. The data export module 10533 is used to export historical information of the device, and can select the amount of sensors to export and the export time, and can perform batch export operations.
The system management module 1054 includes a user role management module 10541, a SIM card pool management module 10542, a site setting module 10543, and an operation log module 10544. The user role management module 10541 sets the roles of the users, such as an administrator and a meter reader, so as to distinguish the operation authorities and improve the security of the system. The SIM card pool management module 10542 displays the SIM card ID and operator information, and whether the current status is available. The site setting module 10543 mainly sets the name, filing information, and version information of the website. The oplog module 10544 will record the operating time for a user to log in and log out of the system based on security considerations.
The log analysis module 106 collects and analyzes logs of each link of the system by using a log analysis system, quickly queries the logs to locate and solve problems, monitors system traffic, analyzes hot data, and timely expands the capacity of the system or degrades service.
In summary, according to the photovoltaic power generation management system based on NB-IoT provided in the present invention, through the interaction of the terminal device module, the IP positioning service module, the access gateway module, the service and application support module, the application management platform module, and the log analysis module, the terminal device can be supervised in real time, so as to implement a highly available and highly concurrent photovoltaic power generation management system, and provide a set of schemes for different manufacturers, which integrate data acquisition, reporting analysis, and data display. The load balance of dynamic feedback is realized, the overall throughput rate of the cluster is improved, and the photovoltaic power generation management system can run efficiently.
The above embodiments are merely illustrative of the present invention and do not limit the present invention.

Claims (6)

1. A photovoltaic power generation management system based on NB-IoT is characterized by comprising a terminal equipment module, an IP positioning service module, an access gateway module, a business and application support module, an application management platform module and a log analysis module;
the terminal equipment module is used for acquiring and capturing information of a data acquisition unit in the photovoltaic system, reporting data and acquiring a configuration command through the access gateway module;
the IP positioning service module is used for realizing reasonable distribution of traffic among a plurality of network devices and enhancing data processing capacity through a load balancing mechanism;
the access gateway module is used for issuing configuration control information of the message processing center and providing network access and transmission resource control;
the business and application support module is used for receiving the sensor data transmitted by the access gateway module, unifying the message format, normalizing the data according to the configured rule and storing the data into a database;
the application management platform module is used for providing visual internet of things terminal management and data viewing functions;
the log analysis module is used for collecting and analyzing logs generated by all links of the system, monitoring system flow and analyzing hotspot data.
2. The NB-IoT based photovoltaic power generation management system according to claim 1, wherein the database comprises three types of databases for data caching, data persistence, and big data storage, respectively.
3. The NB-IoT based photovoltaic power generation management system in accordance with claim 1, wherein the application management platform module comprises: the instrument panel module is used for displaying equipment information and equipment states; the terminal management module is used for displaying a terminal equipment list, adding terminal operation and simultaneously displaying a sensor type and an equipment type; the report counting module is used for showing the equipment information in a chart form and exporting data in a report form; and the system management module is used for managing the roles of system users, and also can be used for setting site information and inquiring operation logs.
4. The NB-IoT based photovoltaic power generation management system according to claim 3, wherein the report statistics module comprises a real-time data module for viewing device upload information and presenting sensor amounts in a graph form for time periods; the analysis and statistics module is used for checking the statistical information of the terminal equipment in a chart form; and the data export module is used for exporting the data information of the equipment, and can select the exported data amount and the exported time.
5. The NB-IoT-based photovoltaic power generation management system according to any one of claims 1-4, wherein the terminal device module obtains power information by using a sensor device connected to a terminal circuit board, the power information includes electric quantity and power information, the sensor includes a power meter and a photovoltaic inverter, and the terminal circuit board receives a configuration command from the application platform management module and reports data according to a set reporting data period.
6. The NB-IoT based photovoltaic power generation management system according to any of claims 1-4, wherein the IP location services module implements a highly available, highly concurrent photovoltaic power generation management system through a dynamic feedback based load balancing mechanism.
CN202010927610.1A 2020-09-07 2020-09-07 Photovoltaic power generation management system based on NB-IoT Pending CN112132538A (en)

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CN112926874A (en) * 2021-03-23 2021-06-08 上海挚达科技发展有限公司 Photovoltaic storage and storage integrated management platform
CN114143341A (en) * 2021-11-23 2022-03-04 上海电力大学 Modern building data collection platform for intelligent energy
CN114301756A (en) * 2021-12-23 2022-04-08 广州亿电邦科智能网络科技有限公司 IOT equipment management system, method and device
CN114760285A (en) * 2022-04-12 2022-07-15 福建新大陆软件工程有限公司 Internet of things sensor configuration and control method and system
CN115190379A (en) * 2022-07-28 2022-10-14 国核信息科技有限公司 Split type wind power vibration monitoring data transmission method and monitoring device
CN117078461A (en) * 2023-08-18 2023-11-17 国家电投集团科学技术研究院有限公司 Optical resource data management system and optical resource data management method

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Application publication date: 20201225