Electric power measurement management system based on Internet of Things

Abstract

The invention relates to the technical field of electric power measurement management, and discloses an electric power measurement management system based on the Internet of Things. The electric power measurement management system based on the Internet of Things comprises an intelligent terminal layer, an intelligent measurement layer, an uplink communication layer, a master station system and a measurement calibration layer, and adopts a transparent transmission technology between the master station system and the intelligent terminal layer, the intelligent measurement layer, the uplink communication layer and the measurement calibration layer. Transmission of different protocol data on a link can be realized, so that construction and maintenance costs of a system communication link are reduced, an intelligent metering layer adopts cross-layer transparent transmission and a vertical switching technology to carry out optimization design on a communication protocol in a system, so that the problem of data errors caused by time delay and network congestion in a protocol conversion and routing process is avoided; the intelligent terminal layer and the intelligent metering layer provide continuous and stable power supply in an on-site power supply mode according to on-site conditions, and energy consumption of equipment can be effectively controlled.

Description

Technical Field

[0001] The present invention belongs to the technical field of power metering management, and in particular relates to a power metering management system based on the Internet of Things. Background Art

[0002] The power grid is divided into three layers: the perception layer, the network layer and the application layer. The perception layer is responsible for realizing the collaborative perception, identification and information collection of actual physical objects, and can receive and respond to the instructions sent by the upper layer of the system; the network layer assumes the communication link function between the upper and lower layers of the system, including a variety of communication networks, and can select the corresponding network for data transmission according to the purpose and sensitivity of the information; the application layer includes network facilities, middleware and applications, which can comprehensively analyze and process the collected terminal information and provide intelligent decision-making, control and services for the operation of the power system. The organic combination of the three sub-layers jointly supports the normal operation of power generation, transmission, transformation, distribution, power consumption and dispatching in the power grid.

[0003] Electricity metering management systems are divided into centralized and distributed types. The centralized type has problems of low system stability and accuracy, while the distributed type has problems of low signal anti-interference and synchronization.

[0004] The electricity metering management system based on the Internet of Things can solve the problems existing in centralized and distributed electricity metering management systems. However, the current electricity metering management system based on the Internet of Things has problems such as poor equipment compatibility, delayed communication protocol conversion, network congestion, poor system security, and low metering accuracy. Therefore, in view of the current situation, it needs to be improved. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an electric power metering management system based on the Internet of Things, which effectively solves the problems of poor equipment compatibility, communication protocol conversion delay, network congestion, poor system security and low metering accuracy in the current electric power metering management system based on the Internet of Things.

[0006] To achieve the above object, the present invention provides the following technical solutions: an Internet of Things-based electricity metering management system, the Internet of Things-based electricity metering management system includes an intelligent terminal layer, an intelligent metering layer, an uplink communication layer, a master station system and a metering calibration layer, the master station system is mainly responsible for storing and processing the collected information, and can customize corresponding services according to actual application requirements using middleware technology, and is responsible for the maintenance of the entire system;

[0007] Intelligent terminal layer: The intelligent terminal layer includes intelligent information collection devices, which are directly connected to the object under test. The intelligent terminal layer is designed with a merging unit to merge the information of multiple intelligent information collection devices into a new data frame;

[0008] Smart metering layer: The smart metering layer receives data frames from the lower layer through the communication interface of the smart metering device to form a material network data intercommunication system, extracts the collected information contained in the data frame, obtains the power metering result, and finally transmits the result;

[0009] Uplink communication layer: The uplink communication layer uses remote communication technology to transmit terminal information to the upper layer of the system through the Internet infrastructure. Important terminal information is transmitted through the power dedicated network;

[0010] Measurement and calibration layer: by installing and calibrating digital energy meters, the signals they generate are used as standard signals, and the reference signals are sent to other devices through the network. The data is transmitted through the network with the equipment under test for comparison and calibration. A hierarchical synchronization mechanism is adopted in the system. For situations with high accuracy requirements and a large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the intelligent terminal layer, a local synchronization mechanism can be selected to achieve synchronization between devices using short-distance wireless networks, RS485, and field buses.

[0011] Preferably, transparent transmission technology is used between the master station system and the intelligent terminal layer, intelligent metering layer, uplink communication layer and measurement and calibration layer to achieve transmission of data of different protocols on the link.

[0012] Preferably, the smart metering layer includes multiple networks to form a heterogeneous network. The data in the system is divided into "vertical transmission" between the upper and lower layers and "horizontal transmission" within the same layer. In the vertical direction, the horizontal transmission is used for routing selection. The smart metering layer uses cross-layer transparent transmission and vertical switching technology to optimize the design of the communication protocol within the system.

[0013] Preferably, the smart terminal layer and the smart metering layer provide continuous and stable power supply by means of local power supply according to the on-site conditions to complete data collection, processing and transmission.

[0014] Preferably, the device software and hardware of the intelligent terminal layer are provided with identification marks to prevent, and the data transmission, access and modification processes of the intelligent metering layer, the uplink communication layer and the measurement and calibration layer are provided with encryption and authorization mechanisms.

[0015] Preferably, the master station system adopts middleware technology to connect with the intelligent terminal layer, the intelligent metering layer, the uplink communication layer and the metering and calibration layer to exchange information.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can realize the transmission of data of different protocols on the link by adopting transparent transmission technology between the master station system and the intelligent terminal layer, the intelligent metering layer, the uplink communication layer and the metering calibration layer, thereby reducing the construction and maintenance costs of the system communication link. The intelligent metering layer adopts cross-layer transparent transmission and vertical switching technology to optimize the communication protocol in the system, thereby avoiding data errors caused by delays and network congestion in the protocol conversion and routing process;

[0017] 2. In the present invention, the smart terminal layer and the smart metering layer adopt the local power supply method according to the on-site situation to provide a continuous and stable power supply to complete the data collection, processing and transmission, so as to effectively control the energy consumption of the equipment and avoid causing additional resource loss; the equipment software and hardware of the smart terminal layer are provided with identification marks to prevent, and the data transmission, access and modification processes of the smart metering layer, the uplink communication layer and the measurement and calibration layer are provided with encryption and authorization mechanisms, so as to prevent other devices from invading the system and sending illegal data to the upper layer of the system;

[0018] 3. The present invention installs and calibrates a digital energy meter, uses the signal it generates as a standard signal, sends a reference signal to other devices through the network, and transmits data with the device under test through the network for comparison and calibration. A hierarchical synchronization mechanism is adopted in the system. For situations with high precision requirements and a large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the smart terminal layer, a local synchronization mechanism can be selected. Synchronization between devices is achieved by using short-distance wireless networks, RS485, and field buses. By utilizing embedded network communication and data management technologies in the Internet of Things, online monitoring and remote calibration effects of the metering management system are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 This is a block diagram of an Internet of Things-based electricity metering management system of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, the present invention provides a technical solution: an electric power metering management system based on the Internet of Things, which includes an intelligent terminal layer, an intelligent metering layer, an uplink communication layer, a master station system and a metering calibration layer. The master station system is mainly responsible for storing and processing the collected information. At the same time, the master station system can customize corresponding services according to actual application requirements using middleware technology and is responsible for the maintenance of the entire system.

[0024] Intelligent terminal layer: The intelligent terminal layer includes intelligent information collection devices, which are directly connected to the object under test. The intelligent terminal layer is designed with a merging unit to merge the information of multiple intelligent information collection devices into a new data frame;

[0025] Smart metering layer: The smart metering device receives data frames from the lower layer through the communication interface to form a material network data intercommunication system. The collected information contained in the data frame is extracted through the data frame, and the power metering result is obtained, and the result is finally transmitted;

[0026] Uplink communication layer: The uplink communication layer uses remote communication technology to transmit terminal information to the upper layer of the system through the Internet infrastructure. Important terminal information is transmitted through the power dedicated network;

[0027] Measurement and calibration layer: by installing and calibrating digital energy meters, the signals they generate are used as standard signals, and the reference signals are sent to other devices through the network. The data is transmitted through the network with the equipment under test for comparison and calibration. A hierarchical synchronization mechanism is adopted in the system. For situations with high accuracy requirements and a large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the intelligent terminal layer, a local synchronization mechanism can be selected to achieve synchronization between devices using short-distance wireless networks, RS485, and field buses.

[0028] Among them, transparent transmission technology is used between the master station system and the intelligent terminal layer, intelligent metering layer, uplink communication layer and measurement and calibration layer to realize the transmission of data of different protocols on the link. The intelligent metering layer contains multiple networks to form a heterogeneous network. The data in the system is divided into "vertical transmission" between the upper and lower layers and "horizontal transmission" within the same layer. In the vertical direction, horizontal transmission is used for routing selection. The intelligent metering layer adopts cross-layer transparent transmission and vertical switching technology to optimize the communication protocol within the system. The intelligent terminal layer and the intelligent metering layer use local power supply to provide continuous and stable power supply according to the on-site conditions to complete data collection, processing and transmission. The equipment software and hardware of the intelligent terminal layer are equipped with identification marks to prevent the data transmission, access and modification processes of the intelligent metering layer, uplink communication layer and measurement and calibration layer from being encrypted and authorized. The master station system adopts middleware technology to connect with the intelligent terminal layer, intelligent metering layer, uplink communication layer and measurement and calibration layer for information exchange. Specific embodiments

[0030] Establish intelligent terminal layer, intelligent metering layer, uplink communication layer, master station system and metering calibration layer. Transparent transmission technology is used between the master station system and the intelligent terminal layer, intelligent metering layer, uplink communication layer and metering calibration layer to realize the transmission of different protocol data on the link. The master station system is mainly responsible for storing and processing the collected information. At the same time, it can customize the corresponding services according to the actual application requirements by using middleware technology, and connect with the intelligent terminal layer, intelligent metering layer, uplink communication layer and metering calibration layer to exchange information and be responsible for the maintenance of the entire system; the intelligent terminal layer includes intelligent information collection equipment, which is directly connected to the measured object. The intelligent terminal layer is designed with a merging unit to merge the information of multiple intelligent information collection equipment into a new data frame; the intelligent metering layer receives the data frame from the lower layer through the communication interface of the intelligent metering device to form a material network data intercommunication system, extracts the collected information contained in the frame through the data frame, and obtains the power metering result, and finally transmits the result. The intelligent terminal layer and the intelligent metering layer use local power supply to provide continuous and stable power supply according to the on-site situation to complete data collection, processing and transmission; The metering layer contains multiple networks to form a heterogeneous network. The data in the system is divided into "vertical transmission" between the upper and lower layers and "horizontal transmission" within the same layer. In the vertical direction, horizontal transmission is used for routing selection. The intelligent metering layer uses cross-layer transparent transmission and vertical switching technology to optimize the communication protocol within the system; the upstream communication layer uses remote communication technology to transmit terminal information to the upper layer of the system through the Internet infrastructure, and important terminal information is transmitted through the power dedicated network; by installing and calibrating digital electric energy meters, the signals generated by them are used as standard signals, and reference signals are sent to other devices through the network, and data is transmitted through the network with the tested equipment for comparison and calibration; a hierarchical synchronization mechanism is adopted in the system. For situations with high accuracy requirements and large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the intelligent terminal layer, a local synchronization mechanism can be selected, and synchronization between devices is achieved by using short-distance wireless networks, RS485, and field bus methods. The equipment software and hardware of the intelligent terminal layer are equipped with identification marks to prevent, and the data transmission, access, and modification processes of the intelligent metering layer, upstream communication layer, and measurement and calibration layer are equipped with encryption and authorization mechanisms.

[0031] By adopting transparent transmission technology between the main station system and the intelligent terminal layer, intelligent metering layer, uplink communication layer and measurement and calibration layer, the transmission of data of different protocols on the link can be realized, thereby reducing the construction and maintenance costs of the system communication link; the intelligent metering layer adopts cross-layer transparent transmission and vertical switching technology to optimize the communication protocol within the system, so as to avoid data errors caused by delays and network congestion in the protocol conversion and routing process; the intelligent terminal layer and the intelligent metering layer adopt local power supply to provide continuous and stable power supply according to the on-site conditions, complete data collection, processing and transmission, so as to effectively control the energy consumption of the equipment and avoid additional resource loss; the equipment software and hardware of the intelligent terminal layer are equipped with identification marks to prevent the intelligent metering layer, uplink communication layer and measurement and calibration layer from being disconnected. The data transmission, access and modification process of the quasi-layer is equipped with encryption and authorization mechanisms to prevent other devices from invading the system and sending illegal data to the upper layer of the system. By installing and calibrating digital electricity meters, the signals they generate are used as standard signals, and the reference signals are sent to other devices through the network. The data is transmitted through the network with the inspected equipment for comparison and calibration. A hierarchical synchronization mechanism is adopted in the system. For situations with high precision requirements and large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the intelligent terminal layer, a local synchronization mechanism can be selected. The synchronization between devices is achieved by using short-distance wireless networks, RS485, and field buses. By utilizing embedded network communication and data management technologies in the Internet of Things, the online monitoring and remote calibration effects of the metering management system can be achieved.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An Internet of Things-based power metering management system, characterized by: The power metering management system based on the Internet of Things includes an intelligent terminal layer, an intelligent metering layer, an uplink communication layer, a master station system and a metering calibration layer. The master station system is mainly responsible for storing and processing the collected information. At the same time, it can customize corresponding services using middleware technology according to actual application requirements and is responsible for the maintenance of the entire system. Intelligent terminal layer: The intelligent terminal layer includes intelligent information collection devices, which are directly connected to the object under test. The intelligent terminal layer is designed with a merging unit to merge the information of multiple intelligent information collection devices into a new data frame; Smart metering layer: The smart metering layer receives data frames from the lower layer through the communication interface of the smart metering device to form a material network data intercommunication system, extracts the collected information contained in the data frame, obtains the power metering result, and finally transmits the result; Uplink communication layer: The uplink communication layer uses remote communication technology to transmit terminal information to the upper layer of the system through the Internet infrastructure. Important terminal information is transmitted through the power dedicated network; Measurement and calibration layer: by installing and calibrating digital energy meters, the signals they generate are used as standard signals, and the reference signals are sent to other devices through the network. The data is transmitted through the network with the equipment under test for comparison and calibration. A hierarchical synchronization mechanism is adopted in the system. For situations with high accuracy requirements and a large distribution range, GPS pulses are used to achieve wide-area synchronous measurement. For devices in the intelligent terminal layer, a local synchronization mechanism can be selected to achieve synchronization between devices using short-distance wireless networks, RS485, and field buses.

2. According to the Internet of Things-based power metering management system of claim 1, it is characterized by: The master station system and the intelligent terminal layer, intelligent metering layer, uplink communication layer and metering calibration layer use transparent transmission technology to achieve the transmission of different protocol data on the link.

3. According to the Internet of Things-based power metering management system of claim 1, it is characterized by: The smart metering layer includes multiple networks to form a heterogeneous network. The data in the system is divided into "vertical transmission" between the upper and lower layers and "horizontal transmission" within the same layer. In the vertical direction, horizontal transmission is used for routing selection. The smart metering layer uses cross-layer transparent transmission and vertical switching technology to optimize the design of the communication protocol within the system.

4. The power metering management system based on the Internet of Things according to claim 1 is characterized in that: The smart terminal layer and the smart metering layer provide continuous and stable power supply by means of local power supply according to the on-site conditions to complete data collection, processing and transmission.

5. The power metering management system based on the Internet of Things according to claim 1 is characterized in that: The equipment software and hardware of the intelligent terminal layer are provided with identification marks to prevent, and the data transmission, access and modification processes of the intelligent metering layer, the uplink communication layer and the metering calibration layer are provided with encryption and authorization mechanisms.

6. The power metering management system based on the Internet of Things according to claim 1 is characterized in that: The master station system adopts middleware technology to connect with the intelligent terminal layer, the intelligent metering layer, the uplink communication layer and the metering calibration layer to exchange information.

Images