Novel multi-source collaborative terminal data management system based on intelligent energy consumption

Abstract

The invention discloses a novel multi-source collaborative terminal data management system based on smart energy consumption, which relates to the technical field of smart energy consumption terminal management and comprises a hardware architecture system and a software architecture system. The hardware architecture system comprises a power supply module, a main control unit, a local communication module, a remote communication module, a local meter reading module, an intelligent edge terminal and a control expansion module; the software architecture system is divided into a system layer and an application layer. The data management system realizes collection and transmission technologies of energy data in a multi-channel and complex environment, performs risk classification on data storage, determines a data storage security level list, formulates corresponding security protection specifications, and adopts perfect protection technologies and measures such as boundary protection, network protection, host protection, application protection and the like. And malicious code monitoring, user identity authentication, communication information encryption, risk control interception detection and the like are adopted to realize data security access, security storage and security transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of smart energy terminal management, and specifically to a novel multi-source collaborative terminal data management system based on smart energy use. Background Art

[0002] With the development of the digital economy, the society urgently needs stable and efficient communication equipment and relatively complete new power systems to ensure the orderly development of related work towards intelligence and informatization. This requires not only a full study of the power Internet of Things and related equipment, components, and technologies of intelligent and automated power systems, but also the application of multi-source data access and power outage analysis to related comprehensive energy systems on this basis to ensure the orderly operation of energy systems in all walks of life in my country.

[0003] With the continuous changes in the structure of energy production and consumption, traditional data collection technology can no longer meet the needs of high-frequency collection of massive electricity consumption data in multiple scenarios in the energy field and intelligent monitoring of multi-source equipment access. In order to achieve extensive connection and deep perception of all links of energy production, transmission, and consumption, and support diversified energy needs such as real-time energy interaction and accurate power outage analysis among energy users, it is urgently necessary to provide safe, efficient, and economical data collection and communication services to continuously promote the improvement of management efficiency and transformation and upgrading.

[0004] Under the current traditional operating mode, with the access of data from load resources, environmental sensors, new energy sources, etc., higher requirements are put forward for key technical indicators such as collection frequency, data type, transmission speed, and response delay.

[0005] The energy consumption terminals of the existing system have few data collection items, low collection frequency, small storage capacity, and slow transmission speed, which does not conform to the development trend of "cloud, big data, and mobile computing". At the same time, the terminal structure is single, the functional configuration is fixed, and the resource configuration is low, which makes it difficult to meet the personalized installation and use requirements of various collection sites. This project develops a new multi-source collaborative terminal based on various new business needs to achieve full collection and holographic perception of massive electricity consumption data.

[0006] At the same time, with the progress of society and technological development, the company's power grid equipment and business are large in number and scale, with heavy equipment assets. The existing electricity terminals collect few data items, low collection frequency, small storage capacity and slow transmission speed, which does not conform to the development trend of "cloud, big data and mobile Internet". At the same time, the terminal structure is single, the functional configuration is fixed, and the resource configuration is low, which makes it difficult to meet the personalized installation and use requirements of various collection sites. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a new multi-source collaborative terminal data management system based on smart energy use, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a new multi-source collaborative terminal data management system based on smart energy use, including a hardware architecture system and a software architecture system;

[0009] The hardware architecture system includes power module, main control unit, local communication module, remote communication module, local meter reading module, intelligent edge terminal and control expansion module:

[0010] The power module provides working power for each part of the terminal;

[0011] The main control unit manages each functional module through a high-speed data bus;

[0012] The local communication module adopts the HPLC&HRF dual-mode solution, which serves as the local channel of the terminal to access different distributed power data;

[0013] The remote communication module adopts 4G / 5G solution as the remote channel of the terminal, interacts with the system main station platform, uploads collected data or receives and executes control strategies;

[0014] The local meter reading module integrates RS485 and RS232 to realize data collection and monitoring of the terminal peripheral near-end intelligent devices;

[0015] The intelligent edge terminal uses CAN, USB, and ETH multi-communication interfaces to build an internal high-speed bus, and selects the appropriate bus according to the data volume, transmission rate, and interaction mode of the interactive information between different functional modules and the main control unit;

[0016] The software architecture system is divided into two layers: system layer and application layer;

[0017] in,

[0018] The system layer includes embedded operating system, hardware driver, system interface layer, and HAL. The operating system provides a system call interface for the application layer through the system interface layer and provides a hardware device access interface through HAL.

[0019] The application layer includes various types of APPs, which are divided into basic APPs, edge computing APPs, and advanced business APPs. APPs exchange data through the message bus and collaborate with each other to complete the overall business functions of the smart edge terminal.

[0020] Optionally, the power module is fixedly installed on the bus backplane at the bottom of the terminal, adopts a single-phase power supply mode, has an operating voltage of AC80~264V, DC110V / 220V, supports AC / DC adaptation, and outputs DC power to power various parts of the terminal;

[0021] The power module adopts multi-channel output mode, supporting main channel 12V and auxiliary channel 5V output;

[0022] The power module also includes a backup power supply; the terminal backup power supply consists of batteries and supercapacitors, and the main control unit is designed with a battery compartment;

[0023] The backup power supply range includes the main control unit, the traffic metering module and the remote communication module. The local communication module has a power outage reporting function.

[0024] The calculation formula of supercapacitor capacity and energy is shown in formula (1):

[0025]

[0026] P—terminal power;

[0027] t—continuous power supply time (180s);

[0028] U1—capacitor initial voltage (5.4V);

[0029] U2—capacitor terminal voltage;

[0030] According to formula (1), the supercapacitor capacity is related to the terminal power and the capacitor terminal voltage, where:

[0031] a. Use a boost circuit to reduce the voltage at the end of U2 to 1.2V; (U2 = 1.2);

[0032] b. Using low power consumption processing, the overall power consumption of the main control unit is reduced to 5W, and the power P required to maintain operation is about 11.5W; (P = 11.5);

[0033] Substituting into formula (1) to calculate the theoretical capacity of the supercapacitor is 151F, and selecting two sets of 2.7V / 330F supercapacitors in series to form a supercapacitor charge and discharge management circuit.

[0034] Optionally, the main control unit selects Rockchip's RK3568J, and builds a terminal main control platform based on the chip;

[0035] The main control unit module consists of power management, core board, real-time clock (RTC), watchdog (WD), Bluetooth, and security components. It is plugged into the bus backplane through the module interface to obtain working power, and provides communication bus and module management signals to achieve access and management of each terminal module.

[0036] The power supply of the main control unit module is 12V, which is converted into the power supply of the corresponding circuit through the power management circuit (DC / DC). Among them, the core board is powered by 5V, and other peripheral circuit modules are powered by 3.3V; the 12V power supply is also used to charge the backup power, and the charging and discharging of the backup power can support software / hardware interlocking; the backup power output power supplies power to the main control unit and is output to the bus backplane through the module interface to power each module;

[0037] The main control unit module provides a communication bus through the module interface for access identification and data interaction of each module;

[0038] The main control unit module provides management signals through the module interface for power supply control, insertion detection and type identification of each module; management signals include GPIO and IIC;

[0039] External communication interface of the main control unit: 2 RJ45 Ethernet interfaces, 10 / 100M adaptive, RJ45 plug-in life of not less than 500 times, support connection to multiple master stations or device expansion; 1 USB interface for terminal program upgrade and log copy; 1 RS232 serial port for LCD screen interaction; 1 Bluetooth module, meeting BLE5.0 requirements, for terminal local maintenance;

[0040] Internal communication interface: 1 CAN interface, transmission rate 500kbps, 1Mbps; 1 USB-Host interface; 1 Ethernet interface, 10 / 100M adaptive; 1 IIC interface, used for power supply and access management of each module.

[0041] Optionally, the local communication module adopts a dual-mode solution, adopts the State Grid Q / GDW12087.41 dual-mode physical layer standard, and complies with the Q / GDW12087-2020 dual-mode communication interconnection technical specification;

[0042] The local communication module uses GD32F450 as the main control MCU to realize the interaction with the main control unit module and the corresponding business management functions; the module input voltage is 5V, and the boost circuit outputs 12V to power the HPLC transceiver circuit; the LDO outputs 3.3V to power other circuits of the module;

[0043] The local communication module uses the USB interface by default, and selects the ETH interface to establish a link with the main control unit.

[0044] Optionally, the remote communication module is constructed using a 5G public network module with a built-in GPS / BD positioning module;

[0045] By default, the remote communication module uses the USB interface to establish a link with the main control unit.

[0046] Optionally, the local meter reading module is equipped with 2 RS485 and 2 CAN interfaces for data collection and control of the electric load intelligent monitoring device near the terminal;

[0047] The local meter reading module uses GD32F303 as the main control MCU, and exchanges data with the main control unit module through the CAN bus, which is used for data collection of the terminal near-end load intelligent monitoring equipment;

[0048] The local meter reading module provides 2 RS485 interfaces and transparent forwarding communication channels;

[0049] The local meter reading module provides 2 CAN interfaces, and data transmission adopts byte stream.

[0050] Optionally, the APP includes a basic APP, an edge computing APP, an advanced business APP, and other APPs;

[0051] The APP communication model includes the APP framework, APP communication architecture, and APP message model;

[0052] Optionally, the APP message model includes point-to-point communication, routing forwarding, and MQTT.

[0053] The present invention provides a new multi-source collaborative terminal data management system based on smart energy use, which has the following beneficial effects:

[0054] This new multi-source collaborative terminal data management system based on smart energy use, based on the research of new multi-source collaborative terminals for smart energy use, realizes the collection and transmission technology of energy data in multi-channel and complex environments, studies the control strategy based on multi-energy data, provides data support for the application of smart energy Internet of Things, and can further strengthen the actual role of the feedback link, so that users can get more accurate and high-quality comprehensive energy services. In view of the sensitivity of energy user data storage, the privacy data signature verification mechanism is used to verify the authenticity of the transaction, and the data storage security level list is determined by risk classification of data storage, and the corresponding security protection specifications are formulated. Perfect boundary protection, network protection, host protection, application protection and other protection technologies and measures are adopted, and malicious code monitoring, user identity authentication, communication information encryption, risk control interception detection, etc. are adopted to achieve data security access, storage and transmission, ensure user data security, and ensure the safety and reliability of the smart electricity service system. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic diagram of the hardware architecture of the novel multi-source collaborative control terminal in the invention;

[0056] Figure 2 This is a schematic diagram of the software architecture of the novel multi-source collaborative control terminal in the invention;

[0057] Figure 3 This is a circuit diagram of the supercapacitor charging circuit in the invention;

[0058] Figure 4 It is the supercapacitor discharge circuit diagram of the invention;

[0059] Figure 5 It is a schematic diagram of the composition of the local communication module in the invention;

[0060] Figure 6 This is a schematic diagram of the composition of the 5G+BD communication module in the invention;

[0061] Figure 7 It is a schematic diagram of the structure of the local meter reading module in the invention;

[0062] Figure 8 This is a diagram of the APP classification architecture in the invention;

[0063] Fig. 9 It is a message framework diagram in the invention;

[0064] Fig.10 It is a message queue diagram in the invention;

[0065] Fig.11 It is a message queue diagram in the invention;

[0066] Fig.12 A synchronous message model diagram in the invention;

[0067] Fig.13 This is a diagram of the asynchronous message model in the invention;

[0068] Fig.14 A message exchange diagram of a request / response mode in the present invention;

[0069] Fig.15 A message exchange diagram for a notification mode in the present invention;

[0070] Fig.16 It is a point-to-point message driving diagram in the invention;

[0071] Fig.17 A diagram for driving the routing and forwarding messages in the invention;

[0072] Fig.18 This is the MQTT message driver diagram in the invention. DETAILED DESCRIPTION

[0073] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0074] The present invention provides a technical solution: a new multi-source collaborative terminal data management system based on smart energy use, including a hardware architecture system and a software architecture system;

[0075] The hardware architecture system includes a power module, a main control unit, a local communication module, a remote communication module, a local meter reading module, an intelligent edge terminal, and a control expansion module, such as Figure 1 As shown:

[0076] The power module provides working power for each part of the terminal. The power module is fixedly installed on the bus backplane at the bottom of the terminal. It adopts a single-phase power supply mode, with an operating voltage of AC80~264V, DC110V / 220V, supports AC / DC self-adaptation, and outputs DC power to power each part of the terminal.

[0077] The power module adopts multi-channel output mode, supporting main channel 12V and auxiliary channel 5V output;

[0078] The power module also includes a backup power supply;

[0079] The terminal backup power supply consists of batteries and supercapacitors, and the main control unit is designed with a battery compartment;

[0080] The backup power supply range includes: main control unit, traffic metering module and remote communication module. The local communication module has a power outage reporting function (built-in overcapacity). To extend the terminal backup power supply time, the terminal should actively shut down other modules and LCD screens that are not needed, and reduce its own CPU load to reduce power consumption.

[0081] The calculation formula of supercapacitor capacity and energy is shown in formula (1):

[0082]

[0083] P—terminal power;

[0084] t—continuous power supply time (180s);

[0085] U1—capacitor initial voltage (5.4V);

[0086] U2—capacitor terminal voltage;

[0087] According to formula (1), the supercapacitor capacity is related to the terminal power and the capacitor terminal voltage, where:

[0088] a. Using a boost circuit, the voltage at the end of U2 can be reduced to 1.2V; (U2 = 1.2);

[0089] b. Using low power consumption processing, the overall power consumption of the main control unit is reduced to 5W, and the power P required to maintain operation is about 11.5W; (P = 11.5);

[0090] Substituting into formula (1), the theoretical capacity of the supercapacitor can be calculated to be 151F. Considering a certain margin, two sets of 2.7V / 330F supercapacitors can be connected in series. The supercapacitor charge and discharge management circuit is as follows: Figure 3 , Figure 4 As shown:

[0091] The terminal is equipped with both rechargeable batteries and supercapacitors. After power failure, the control scheme can be flexibly handled by the software. By default, the supercapacitor is used for power supply first, and the rechargeable battery is used for power supply after the supercapacitor is exhausted. The discharge time of the rechargeable battery should be controlled to avoid battery failure due to over-discharge.

[0092] The main control unit manages each functional module through a high-speed data bus. The main control unit selects Rockchip's RK3568J and builds a terminal main control platform based on this chip: the CPU main frequency is standard 1.2GHz, which can be increased according to the operating conditions; the memory is standard 1GB, and 2GB is optional; the Flash (eMMC) is standard 8GB, and 16GB is optional;

[0093] The main control unit module is mainly composed of power management, core board, real-time clock (RTC), watchdog (WD), Bluetooth, security components and related interfaces. It is plugged into the bus backplane through the module interface to obtain working power, and provides communication bus and module management signals to realize the access and management of each module of the terminal;

[0094] The power supply of the main control unit module is 12V, which is converted into the power supply of the corresponding circuit through the power management circuit (DC / DC). Among them, the core board is powered by 5V, and other peripheral circuit modules are powered by 3.3V; the 12V power supply is also used to charge the backup power, and the charging and discharging of the backup power can support software / hardware interlocking; the backup power output power supplies power to the main control unit and is output to the bus backplane through the module interface to power each module;

[0095] The main control unit module provides a communication bus through the module interface for access identification and data interaction of each module. Each functional module can select a suitable internal bus for design according to the functional definition and business requirements;

[0096] The main control unit module provides management signals through the module interface for power supply control, insertion detection and type identification of each module; management signals include GPIO and IIC. In order to prevent the current backflow problem caused by asynchronous power-on startup timing, the management signal should be output after passing through the digital isolation circuit;

[0097] Main control unit performance indicators: CPU main frequency is 1.2GHz as standard, and can be increased according to the operating conditions; memory is 1GB as standard, and 2GB is optional; Flash (eMMC) is 8GB as standard, and 16GB is optional;

[0098] External communication interface of the main control unit: 2 RJ45 Ethernet interfaces, 10 / 100M adaptive, RJ45 plug-in life of not less than 500 times, support connection to multiple master stations or device expansion; 1 USB interface for terminal program upgrade and log copy; 1 RS232 serial port for LCD screen interaction; 1 Bluetooth module, meeting BLE5.0 requirements, for terminal local maintenance;

[0099] Internal communication interface: 1 CAN interface, with optional transmission rates of 500kbps and 1Mbps; 1 USB-Host interface, meeting USB2.0 requirements; 1 Ethernet interface (optional), 10 / 100M adaptive; 1 IIC interface, used for power supply and access management of each module;

[0100] The local communication module adopts the HPLC&HRF dual-mode solution. As the local channel of the terminal, it accesses different distributed power data. The local communication module adopts a dual-mode solution, which meets the State Grid Q / GDW12087.41 dual-mode physical layer standard and follows the Q / GDW12087-2020 dual-mode communication interconnection technical specifications, such as Figure 5 As shown;

[0101] The local communication module uses GD32F450 as the main control MCU to realize the interaction with the main control unit module and the corresponding business management functions; the module input voltage is 5V, and the boost circuit outputs 12V to power the HPLC transceiver circuit; the LDO outputs 3.3V to power other circuits of the module;

[0102] The local communication module uses the USB interface by default, and the ETH interface can be selected to establish a link with the main control unit;

[0103] The performance indicators of the local communication module are as follows:

[0104] 1) Basic communication performance of high-speed carrier: basic communication frequency bands are 2MHz~12MHz, 2.4MHz~5.6MHz, 0.7MHz~3MHz, 1.7MHz~3MHz, and can support switching; communication rate is greater than or equal to 1Mbps;

[0105] 2) High-speed wireless basic communication performance: basic communication frequency band 470MHz~510MHz; support OFDM debugging mode;

[0106] 3) Power consumption requirements: module static power consumption ≤ 1W, dynamic power consumption ≤ 3W;

[0107] The remote communication module adopts the 4G / 5G solution as the remote channel of the terminal, interacts with the system main station platform, uploads collected data or receives and executes control strategies. The remote communication module is built with a 5G public network module and has a built-in GPS / BD positioning module, such as Figure 6 As shown:

[0108] N513 is a 5GLGA packaged industrial-grade four-antenna communication module that supports NRSub-6GHz NS and SA modes, FDD / TDD, LTE, and WCDMA network standards, of which SA supports TDD and FDD working modes; N513 also provides a wealth of application interfaces, such as ultra-high-speed interfaces such as PCIeGen2 and USB3.0, which can meet ultra-high-speed data transmission applications;

[0109] The remote communication module uses the USB interface to establish a link with the main control unit by default;

[0110] The performance indicators of the remote communication module are as follows:

[0111] (1) Transmission characteristics: in accordance with the requirements of 3GPP34.121, 3GPP34.122, 3GPP36.521, 3GPP38.101, and 3GPP38.521. The specific indicators are shown in Table 1:

[0112] Table 1 Operating frequency and RF performance requirements

[0113]

[0114] (2) Specifications and indicators of wireless channels shall comply with the requirements of YD / T1214-2006, YD / T1208-2002, 3GPP36.104 and 3GPP36.141, 3GPP34.121, 3GPP34.122, 3GPP36.521, 3GPP38.101 and 3GPP38.521. The specific indicators are shown in Table 2:

[0115] Table 2 Wireless channel specification requirements

[0116]

[0117]

[0118] (3) Wireless rate: DL throughput: 1.9 Gbps; UL throughput: 711 Gbps; Power level: 23 dBm ± 2 dB (Power Class 3);

[0119] The local meter reading module integrates RS485 and RS232 to realize data collection and monitoring of peripheral near-end intelligent devices (such as sensors, smart meters, smart circuit breakers, etc.). The local meter reading module is equipped with 2 RS485 and 2 CAN interfaces as standard, which are used for data collection and regulation of the near-end electric load intelligent monitoring equipment of the terminal. The composition structure is as follows: Figure 7 As shown;

[0120] (1) The local meter reading module uses GD32F303 as the main control MCU, and exchanges data with the main control unit module through the CAN bus by default to realize data collection of the terminal near-end load intelligent monitoring equipment;

[0121] The local meter reading module provides 2 RS485 interfaces, which can provide transparent forwarding communication channels. The baud rate and other communication parameters are controlled by the host to meet the transmission rate of 300bps to 115200bps.

[0122] The local meter reading module provides 2 CAN interfaces. The data transmission adopts byte stream. It can exchange information with external devices based on CAN bus and ensure the consistency of CAN communication protocol. It supports CAN2.0B protocol specified by ISO11898. The transmission rate supports 10kbps, 25kbps, 50kbps, 125kbps, 250kbps, 500kbps and 1Mbps.

[0123] (2) Performance indicators

[0124] The RS-485 interface of the local meter reading module meets the following requirements:

[0125] 1) When the RS-485A and B terminals are unloaded, the output differential mode voltage |VAB| shall be no less than 1.5V and no more than 5.5V;

[0126] 2) In the receiving state, a differential mode voltage of -200mV to +200mV is applied between the A and B terminals, and the absolute value of the line current should not exceed 1.7mA;

[0127] 3) Add a load resistor of 375Ω between the RS-485A and B terminals, and the output differential mode voltage |VAB| should be no less than 1.5V;

[0128] 4) The receiving sensitivity of the RS-485 communication interface is ±200mV (allowable deviation 5%);

[0129] 5) Add a simulated transmission impedance network resistor of 50Ω between the RS-485 lines, and add a load capacitor of 0.066uF between the RS-485A and B terminals. The transition time of the RS-485 signal shall not exceed 30% of the signal bit time width;

[0130] 6) RS-485 interface should have long-term overload protection and self-recovery capability;

[0131] 7) The terminals of the RS-485 interface should be able to withstand 380V AC for 5 minutes without damage;

[0132] The power consumption of the local meter reading module meets the following requirements:

[0133] Module static power consumption ≤ 1W;

[0134] Dynamic power consumption ≤ 2W;

[0135] The intelligent edge terminal uses multiple communication interfaces such as CAN, USB, ETH, etc. to build an internal high-speed bus, and selects the appropriate bus according to the data volume, transmission rate, interaction mode, etc. of the interactive information between different functional modules and the main control unit;

[0136] Modules with large data volume and high transmission rate, such as local communication modules and remote communication modules, use USB or ETH interfaces;

[0137] Control expansion modules, other control modules, and other modules with small data volumes and that need to be actively reported use the CAN bus;

[0138] Software architecture system, such as Figure 2 As shown, it is divided into two layers of architecture: system layer and application layer;

[0139] in,

[0140] The system layer includes embedded operating system, hardware driver, system interface layer, and HAL. The operating system provides a system call interface for the application layer through the system interface layer and provides a hardware device access interface through HAL.

[0141] The application layer includes various types of apps, which are mainly divided into basic apps, edge computing apps, advanced business apps, and other apps. Apps interact with each other through the message bus to complete the overall business functions of the intelligent edge terminal and meet the multi-functional data high-frequency collection and precise control functions of various application scenarios.

[0142] APP categories include basic APP, edge computing APP, advanced business APP, and other APP. The APP classification structure is as follows: Figure 8 As shown,

[0143] (1) Basic APP manages "shared resources" to avoid conflicts caused by concurrent access by multiple APPs. It also manages the priority of "shared resources" and has the feature of being independent of business. Shared resources include data, peripherals, etc.

[0144] The basic APP provides services to other APPs through the message bus in the form of messages;

[0145] There is no data exchange between the basic APP and the main station system;

[0146] Basic APPs include but are not limited to data center, wireless remote dial-up management, local communication management, security management, serial port management, etc.;

[0147] Edge computing APP: Edge computing APP completes pure edge computing and analysis services (such as power quality analysis, line loss analysis, load forecasting, etc.);

[0148] (2) Edge computing apps provide services to the outside world through data centers;

[0149] There is no data interaction between the edge computing APP and the main station system;

[0150] Edge computing apps include but are not limited to collection task scheduling management, power quality analysis, load forecasting, etc.

[0151] (3) Advanced business APP: data interaction exists between the business APP and the master station system. The one-to-one correspondence between APP and master station is followed. One APP is not allowed to connect to multiple different master stations. The business APP can be implemented as a single binary file (single process) or multiple binary files (multiple processes). The business function of a specific scenario is completed through the multi-process collaboration mode. Advanced business APP includes but is not limited to dedicated transformer collection, orderly power consumption of electric vehicles, enterprise energy efficiency management, distributed energy management, intelligent monitoring of substations, etc.

[0152] (4) Other APPs. Other APPs are highly related to the terminal hardware implementation scheme, and do not require interchangeability. They are shipped with the equipment and are developed and maintained by the terminal manufacturer. Other APPs include but are not limited to exchange acquisition, desktop display, remote signal pulse sampling, etc.

[0153] The APP communication model is as follows:

[0154] (1) APP framework. The terminal APP uses the message bus framework. All interactions between APPs are carried out through the message bus. For the message framework, see Figure 4-12 ; The message driver supports multiple modes such as IPC (Inter-Process Communication), TCP, UDP, MQTT, etc., and can be flexibly tailored to support only one or more of them according to system resources and operating environment; Based on this message bus architecture, the APP must comply with the message driver specification before it can be connected to the system. The message driver specification is described below;

[0155] The system manager is responsible for the access and management of all user apps and other basic apps. The system manager has dual protection of software and hardware watchdogs, and can automatically recover from abnormalities. The life cycle of other apps is monitored and managed by the system manager's keep-alive mechanism, such as Fig. 9 As shown;

[0156] (2) APP communication architecture

[0157] 1) Message exchange model. Data exchange between apps is achieved through messages. The message exchange model is shown in Figure 4-13 ; The transmission of messages can support IPC, TCP, UDP or MQTT; The service provider (server role) defines the message interface, and the service user (client role) accesses the corresponding service according to the defined message interface; An APP can be both a service provider and a user of certain services, and has multiple roles of server and client, such as Fig.10 As shown;

[0158] Message priority. In this message communication framework, messages have a priority mechanism to ensure that high-priority messages can be processed first, to cope with certain operations that require high timeliness; messages are queued in the message queue in order of priority and wait for processing, see Fig.11 As shown; the smaller the priority value, the higher the priority, and 0 is the highest priority;

[0159] Synchronous message, the sending program first initiates a request (sends a message) to the receiving program, and then the sending program blocks its own process until it receives a response from the receiving program; the sending program continues to process after receiving the response; synchronous request / response communication see Fig.12 As shown;

[0160] Asynchronous messaging, when using asynchronous messaging, the caller does not need to wait for a response after sending a message, and can continue to process other tasks; for asynchronous communication, an application (requester or sender) sends a request to another application, and then can continue to perform its own other tasks; the sending program does not need to wait for the execution and return results of the receiving program, but can continue to process other requests, see Fig.13 As shown;

[0161] 2) Request / response type of data exchange. This data exchange model supports the client process of an APP to make service requests to the server application process of other APPs, and the server application process provides service responses to the client application process. Fig.14 As shown;

[0162] 3) Notification type data exchange

[0163] This data exchange model supports the server process of APP to send notifications to the client application process of other APPs, and does not require confirmation from the client application process. Fig.15 ;

[0164] (3) APP message model, as follows:

[0165] 1) Point-to-point communication: In point-to-point communication mode, there is no need for the system manager to participate in message routing, and apps can communicate directly with each other point-to-point;

[0166] This mode is applicable to apps based on IPC or UDP drive mode. Apps based on IPC drive mode must be located in the same host. Apps based on UDP drive mode do not have this restriction and can be located in any device with an independent IP address (container or other terminal or computer).

[0167] See the schematic diagram of point-to-point communication mode for details. Fig.16 As shown;

[0168] 2) Routing and forwarding

[0169] The system manager is required to participate in message routing, and apps cannot communicate directly with each other;

[0170] This mode is suitable for communication between any heterogeneous drive mode APPs, or communication between APPs based on TCP drive mode; the system manager has a built-in TCP server, and other APPs using TCP drive are clients;

[0171] The routing forwarding diagram is shown in Fig.17 As shown;

[0172] 3)MQTT

[0173] Based on the MQTT mode, the system's built-in MQTTBroker acts as the message center to complete message forwarding. Fig.18 ;MQTT topic rules:

[0174] In case of non-broadcast messages, the name of the message sender / the name of the message receiver;

[0175] When broadcasting a message, the sender name of the message is / Broadcast / IID / IOP / data class identifier, where the data class identifier is optional. For IID, IOP, and data class identifier, see Broadcast Topic Subscription Example.

[0176] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new multi-source collaborative terminal data management system based on smart energy use, characterized by: Including hardware architecture system and software architecture system; The hardware architecture system includes power module, main control unit, local communication module, remote communication module, local meter reading module, intelligent edge terminal and control expansion module: The power module provides working power for each part of the terminal; The main control unit manages each functional module through a high-speed data bus; The local communication module adopts the HPLC&HRF dual-mode solution, which serves as the local channel of the terminal to access different distributed power data; The remote communication module adopts 4G / 5G solution as the remote channel of the terminal, interacts with the system main station platform, uploads collected data or receives and executes control strategies; The local meter reading module integrates RS485 and RS232 to realize data collection and monitoring of the terminal peripheral near-end intelligent devices; The intelligent edge terminal uses CAN, USB, and ETH multi-communication interfaces to build an internal high-speed bus, and selects the appropriate bus according to the data volume, transmission rate, and interaction mode of the interactive information between different functional modules and the main control unit; The software architecture system is divided into two layers: system layer and application layer; in, The system layer includes embedded operating system, hardware driver, system interface layer, and HAL. The operating system provides a system call interface for the application layer through the system interface layer and provides a hardware device access interface through HAL. The application layer includes various types of APPs, which are divided into basic APPs, edge computing APPs, and advanced business APPs. APPs exchange data through the message bus and collaborate with each other to complete the overall business functions of the smart edge terminal.

2. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The power module is fixedly installed on the bus backplane at the bottom of the terminal, adopts a single-phase power supply mode, has an operating voltage of AC80~264V, DC110V / 220V, supports AC / DC adaptation, and outputs DC power to power various parts of the terminal; The power module adopts multi-channel output mode, supporting main channel 12V and auxiliary channel 5V output; The power module also includes a backup power supply; the terminal backup power supply consists of batteries and supercapacitors, and the main control unit is designed with a battery compartment; The backup power supply range includes the main control unit, the traffic metering module and the remote communication module. The local communication module has a power outage reporting function. The calculation formula of supercapacitor capacity and energy is shown in formula (1): P—terminal power; t—continuous power supply time (180s); U1—capacitor initial voltage (5.4V); U2—capacitor terminal voltage; According to formula (1), the supercapacitor capacity is related to the terminal power and the capacitor terminal voltage, where: a. Use a boost circuit to reduce the voltage at the end of U2 to 1.2V; (U2＝1.2)； b. Using low power consumption processing, the overall power consumption of the main control unit is reduced to 5W, and the power P required to maintain operation is about 11.5W; (P = 11.5); Substituting into formula (1) to calculate the theoretical capacity of the supercapacitor is 151F, and selecting two sets of 2.7V / 330F supercapacitors in series to form a supercapacitor charge and discharge management circuit.

3. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The main control unit selects Rockchip's RK3568J, and builds a terminal main control platform based on the chip; The main control unit module consists of power management, core board, real-time clock (RTC), watchdog (WD), Bluetooth, and security components. It is plugged into the bus backplane through the module interface to obtain working power, and provides communication bus and module management signals to achieve access and management of each terminal module. The power supply of the main control unit module is 12V, which is converted into the power supply of the corresponding circuit through the power management circuit (DC / DC). Among them, the core board is powered by 5V, and other peripheral circuit modules are powered by 3.3V; the 12V power supply is also used to charge the backup power, and the charging and discharging of the backup power can support software / hardware interlocking; the backup power output power supplies power to the main control unit and is output to the bus backplane through the module interface to power each module; The main control unit module provides a communication bus through the module interface for access identification and data interaction of each module; The main control unit module provides management signals through the module interface for power supply control, insertion detection and type identification of each module; management signals include GPIO and IIC; External communication interface of the main control unit: 2 RJ45 Ethernet interfaces, 10 / 100M adaptive, RJ45 plug-in life of not less than 500 times, support connection to multiple master stations or device expansion; 1 USB interface for terminal program upgrade and log copy; 1 RS232 serial port for LCD screen interaction; 1 Bluetooth module, meeting BLE5.0 requirements, for terminal local maintenance; Internal communication interface: 1 CAN interface, transmission rate 500kbps, 1Mbps; 1 USB-Host interface; 1 Ethernet interface, 10 / 100M adaptive; 1 IIC interface, used for power supply and access management of each module.

4. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The local communication module adopts a dual-mode solution, adopts the State Grid Q / GDW12087.41 dual-mode physical layer standard, and complies with the Q / GDW12087-2020 dual-mode communication interconnection technical specification; The local communication module uses GD32F450 as the main control MCU to realize the interaction with the main control unit module and the corresponding business management functions; the module input voltage is 5V, and the boost circuit outputs 12V to power the HPLC transceiver circuit; the LDO outputs 3.3V to power other circuits of the module; The local communication module uses the USB interface by default, and selects the ETH interface to establish a link with the main control unit.

5. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The remote communication module is built with a 5G public network module and has a built-in GPS / BD positioning module; By default, the remote communication module uses the USB interface to establish a link with the main control unit.

6. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The local meter reading module is equipped with 2 RS485 and 2 CAN interfaces as standard, which are used for data collection and control of the electric load intelligent monitoring equipment near the terminal; The local meter reading module uses GD32F303 as the main control MCU, and exchanges data with the main control unit module through the CAN bus, which is used for data collection of the terminal near-end load intelligent monitoring equipment; The local meter reading module provides 2 RS485 interfaces and transparent forwarding communication channels; The local meter reading module provides 2 CAN interfaces, and data transmission adopts byte stream.

7. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 1 is characterized in that: The APPs include basic APPs, edge computing APPs, advanced business APPs, and other APPs; The APP communication model includes the APP framework, APP communication architecture, and APP message model.

8. The novel multi-source collaborative terminal data management system based on intelligent energy use according to claim 7 is characterized in that: The APP message model includes point-to-point communication, routing forwarding, and MQTT.

Images