Energy metering system and method

Abstract

The embodiment of the invention provides an energy metering system and method, and relates to the technical field of energy recycling, and the system comprises a management and control platform, a signal transmission unit, and a measurement and control assembly. The management and control platform is in communication connection with the measurement and control assembly through the signal transmission unit. The measurement and control assembly comprises a metering instrument and a control valve which are respectively used for detecting basic metering data and controlling an energy supply pipeline. After the management and control platform obtains the type of the conveyed energy, the measurement basis information can be inquired according to the type of the conveyed energy. And calculating settlement measurement data according to the measurement basis information and the basic measurement data, thereby generating measurement information based on the settlement measurement data. According to the system, corresponding metering modes can be selected according to different types of conveyed energy, and different metering instruments can be used for data detection, so that the full-working-condition energy use metering requirements are met, the energy metering accuracy is improved, and the problem that the energy metering accuracy is low is solved.

Description

Technical Field

[0001] This application relates to the field of energy recovery and utilization technology, and in particular to an energy metering system and method. Background Technology

[0002] Energy metering refers to energy processing activities that use quantitative indicators to standardize the units and ensure accurate and reliable values ​​of energy quantities in energy production, storage, conversion, utilization, management, and research. In some industrial areas, byproduct energy such as hot water, cold water, nitrogen, compressed air, and steam is generated during production processes. To effectively utilize these byproduct energy, it can be supplied externally; that is, by establishing external energy supply channels, the byproduct energy can be transported to external energy-consuming areas for utilization. For example, in the production process of large power plants, steam turbines have extraction systems that can extract steam from the turbine cylinders. The extracted steam can then be sent to other plants for heating, achieving energy recovery and utilization.

[0003] In industrial plants, most require energy supplies such as hot water and compressed air, thus enabling the creation of integrated energy recovery and utilization systems that encompass both energy demand and supply. For example, a plant might choose to build a new energy supply station to collect water, gas, steam, and other energy generated during industrial production, and then transmit this energy to energy-consuming parties via external supply equipment to meet its own production needs and external energy supply. Since the external energy supply process involves production efficiency and economic benefits, energy metering is necessary to determine the amount of energy collected and supplied.

[0004] While instruments can be used for energy metering, their inherent error rate reduces accuracy. Furthermore, the inability to fully apply settlement criteria to diverse energy sources further diminishes accuracy. For instance, settling accounts for hot water and chilled water based solely on flow rate can lead to discrepancies between the supplied energy and the actual measured amount, affecting the final measurement results. Summary of the Invention

[0005] In view of this, embodiments of this application provide an energy metering system and method to solve the problem of low energy metering accuracy.

[0006] According to a first aspect of this application, an energy metering system is provided for use in an energy supply station, wherein the energy supply station establishes a connection path with an energy user target through an energy supply pipeline; the system includes: a control platform, a signal transmission unit, and a measurement and control component; The control platform establishes a communication connection with the measurement and control component through the signal transmission unit; the measurement and control component includes metering instruments and control valves; the metering instruments and control valves are installed on the energy supply pipeline; the type and number of metering instruments are set according to the type of energy transported in the energy supply pipeline; the metering instruments are configured to detect basic metering data and send the basic metering data to the control platform; the control platform is configured to: The type of energy being transported is obtained, wherein the type of energy being transported includes at least one of heat exchange medium flow, gas flow, and steam flow; According to the type of energy being transported, the metering basis information is queried, and the metering basis information includes the quantification strategy of the energy being transported; Receive basic metering data, which includes at least one of temperature data, pressure data, flow rate data, and heat data; Settlement measurement data is calculated based on the measurement basis information and the basic measurement data. The settlement measurement data is quantified data calculated according to the quantification strategy of the transmitted energy, based on at least one of the basic measurement data and energy usage parameters. The energy usage parameters include at least one of the following: operating temperature, operating pressure, operating time, type of the metering instrument, and flow range. Metering information is generated based on the settlement and metering data.

[0007] In some embodiments, the management platform is further configured to: The measurement and control target is determined based on the type of energy being transported. The measurement and control target includes a target energy supply pipeline, a target metering instrument, and a target control valve. The target metering instrument is a metering instrument used to measure basic metering data in the target energy supply pipeline. The target control valve is a control valve installed on the target energy supply pipeline. Generate a data acquisition request and send the data acquisition request to the target metering instrument, the data acquisition request including the data item type contained in the basic metering data specified according to the type of energy being transmitted; Receive the basic metering data fed back by the target metering instrument in response to the data acquisition request.

[0008] In some embodiments, the management platform is further configured to: Obtain the energy usage parameters; Extract the working time from the energy usage parameters, and determine the peak and off-peak periods to which the working time belongs; The data statistical interval of the basic measurement data is determined according to the peak and valley periods; The target metering instrument is determined based on the data statistical interval.

[0009] In some embodiments, if the type of energy being transported includes a heat exchange medium flow, the control platform is further configured to: First flow data and first temperature data are extracted from the basic metering data. The first flow data is the volumetric flow rate collected by a flow sensor installed at the inlet of the energy supply pipeline. The first temperature data includes the inlet temperature and the outlet temperature. The medium mass flow rate is calculated based on the first flow rate data, wherein the medium mass flow rate is the product of the first flow rate data and the medium density; Obtain the mass enthalpy of the medium at the inlet temperature and the outlet temperature, and extract the operating time from the energy usage parameters; Calculate the supplied heat, which is the integral of the medium mass flow rate and the mass enthalpy over the operating time.

[0010] In some embodiments, if the type of energy being delivered includes a gas stream, the control platform is further configured to: The second temperature data, the first pressure data, and the second flow data are extracted from the basic metering data. The second flow data is the mass flow rate collected by the flow sensor installed at the inlet of the energy supply pipeline. Calculate the first temperature and pressure compensation parameter based on the second temperature data and the first pressure data; Based on the first temperature and pressure compensation parameter, temperature and pressure correction is performed on the second flow data to obtain settlement metering data, which includes the corrected second mass flow rate.

[0011] In some embodiments, if the type of energy being transported includes a steam stream, the control platform is further configured to: A second pressure data is extracted from the basic metering data, the second pressure data including the pressure before throttling and the pressure after throttling; The throttling pressure difference is calculated based on the pressure before throttling and the pressure after throttling; Obtain the throttling compensation coefficient; The steam mass flow rate is calculated based on the throttling pressure difference and the throttling compensation coefficient; the steam mass flow rate is the product of the square root of the throttling pressure difference and the throttling compensation coefficient.

[0012] In some embodiments, the management platform is further configured to: The flow range is extracted from the energy usage parameters, and the flow range includes a first flow range and a second flow range; Extracting the second pressure data from the basic metering data based on the steam mass flow rate and the flow range includes: if the steam mass flow rate is within the measurement range corresponding to the first flow range, obtaining the second pressure data detected by the differential pressure transmitter corresponding to the first flow range; if the steam mass flow rate is within the measurement range corresponding to the second flow range, obtaining the second pressure data detected by the differential pressure transmitter corresponding to the second flow range. Extract third temperature data from the basic measurement data; Calculate the second temperature and pressure compensation parameters based on the third temperature data and the second pressure data; Based on the second temperature and pressure compensation parameter, temperature and pressure correction is performed on the steam mass flow rate to obtain settlement metering data, which includes the corrected steam mass flow rate.

[0013] In some embodiments, the management platform is further configured to: Obtain energy settlement data, wherein the energy settlement data includes at least one of planned energy supply and actual energy consumption; By comparing the metering information with the energy supply data, a supply control command is generated; The supply control command is sent to the control valve to control the control valve to open or close the energy supply pipeline.

[0014] In some embodiments, the monitoring and control component further includes an image acquisition device configured to acquire image data of the target monitoring area and send the image data to the management and control platform; the management and control platform is further configured to: A necessary metering set is determined based on the type of energy being transmitted, and the necessary metering set includes at least one data item. Based on the necessary measurement data, traverse the missing data items in the basic measurement data; If the basic measurement data includes at least one of the missing data items, obtain the image data; Identify monitoring targets from the image data, the monitoring targets including measuring instruments for detecting the missing data items; The image data is used to read the acquisition results of the monitored target, and the basic measurement data is supplemented based on the acquisition results.

[0015] According to a second aspect of this application, an energy metering method is provided, applied to the energy metering system described in the first aspect, the method comprising: The type of energy being transported is obtained, wherein the type of energy being transported includes at least one of heat exchange medium flow, gas flow, and steam flow; According to the type of energy being transported, the metering basis information is queried, and the metering basis information includes the quantification strategy of the energy being transported; Receive basic metering data, which includes at least one of temperature data, pressure data, flow rate data, and heat data; Settlement measurement data is calculated based on the measurement basis information and the basic measurement data. The settlement measurement data is quantified data calculated according to the quantification strategy of the transmitted energy, based on at least one of the basic measurement data and energy usage parameters. The energy usage parameters include at least one of the following: operating temperature, operating pressure, operating time, type of the metering instrument, and flow range. Metering information is generated based on the settlement and metering data.

[0016] According to a third aspect of this application, a computer device is provided, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor executes the program to implement the above-described energy metering method.

[0017] According to a fourth aspect of this application, a storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the above-described energy metering method.

[0018] By employing the above technical solutions, this application provides an energy metering system and method. The system includes a control platform, a signal transmission unit, and a measurement and control component. The control platform establishes a communication connection with the measurement and control component through the signal transmission unit. The measurement and control component includes metering instruments and control valves, used for detecting basic metering data and controlling energy supply pipelines, respectively. After acquiring the type of energy being transported, the control platform can query metering basis information based on the type of energy being transported. Then, it calculates settlement metering data based on the metering basis information and basic metering data, thereby generating metering information based on the settlement metering data. The system can select appropriate metering methods for different types of transported energy and can utilize different metering instruments for data detection to meet the metering requirements of energy use under all operating conditions, improve the accuracy of energy metering, and solve the problem of low energy metering accuracy.

[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the energy metering system structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of the signal transmission unit structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the heat exchange medium energy supply structure provided in the embodiments of this application; Figure 4 This is a schematic diagram of a gas flow energy supply structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the steam flow energy supply structure provided in the embodiments of this application; Figure 6 This is a schematic diagram of the energy metering method provided in the embodiments of this application. Detailed Implementation

[0021] The present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0022] In this application embodiment, energy broadly refers to liquid and gaseous media with specific physical and chemical properties that can be transported through pipelines or other transportation systems. For example, energy refers to fluid media such as water, gas, and steam at a certain temperature. Energy metering is a data quantification and statistical method used to assess the change in energy by detecting changes in the physical and chemical properties of fluid media. Therefore, energy metering refers to energy processing activities in energy production, storage, conversion, utilization, management, and research, which use quantitative indicators to unify the units and ensure accurate and reliable values ​​of energy quantities.

[0023] In some embodiments, industrial production areas may generate byproduct energy such as hot water, cold water, nitrogen, compressed air, and steam during the production process. To effectively utilize these byproduct energy, it can be supplied externally; that is, by establishing external energy supply channels, the byproduct energy can be transported to external energy-consuming areas for utilization. For example, in the production process of large power plants, the steam turbines are equipped with steam extraction systems that can extract steam from the turbine cylinders. The extracted steam can then be sent to other plants for heating, achieving energy recovery and utilization.

[0024] Energy metering can be applied to the field of energy recovery and utilization. This involves using energy metering to determine the amount of energy recovered and utilized, enabling statistical analysis of energy recovery and utilization and settlement of energy supply. For example, a factory might choose to build a new energy supply station to collect energy such as water, gas, and steam generated during industrial production and then transmit this energy to energy-consuming parties through external supply equipment to meet its own production needs and external energy supply. Since the external energy supply process involves production efficiency and economic benefits, energy metering is necessary to determine the amount of energy collected and supplied.

[0025] A measurement system established for the energy metering process can be referred to as an energy metering system. In some embodiments, the energy metering system can use energy meters to perform energy metering during the energy metering process. These energy meters may include sensors such as flow meters that measure fluid flow. The energy meters can be installed on the energy supply pipeline to measure the flow rate of the delivered energy. However, because energy meters are installed according to pipeline distribution or energy supply station layout, they cannot meet the usage requirements of various operating conditions, lack sufficient measurement accuracy, and are prone to causing settlement disputes. Furthermore, the meters in the energy metering system are not equipped with an effective signal transmission system, making it impossible for the energy supplier to effectively monitor the meters. This necessitates the allocation of dedicated meter reading and maintenance personnel, resulting in a waste of human resources.

[0026] Furthermore, energy metering systems only consider the issue of long-distance signal transmission from meters. For example, adding switches and using fiber optic transmission to send the metering instrument signals back to the supplier for monitoring; however, this method results in long-distance fiber optic cable laying, increasing construction time and economic costs for electrical meter installation. Additionally, the fundamental issue of energy billing, namely meter accuracy, is not considered in energy metering systems, leading to a decrease in the accuracy of energy metering results during the billing process.

[0027] In summary, energy meters in energy metering systems lack sufficient accuracy, and the metering basis is not accurate enough for different energy sources. For example, when metering hot water and chilled water, billing should not be based solely on flow rate, but should consider flow rate, supply water temperature, and recovery temperature to calculate the heat consumed. Users experience peak and trough periods of energy consumption at different times, which metering instruments struggle to accurately measure, failing to meet the needs of metering under various operating conditions.

[0028] To address the problem of low accuracy in energy metering, some embodiments of this application provide an energy metering system. This system can be applied to energy supply stations, which establish a connection with energy users through energy supply pipelines. The system comprehensively addresses shortcomings in meter accuracy, signal transmission, and settlement platforms, implementing corresponding metering methods for different energy sources, thereby improving the accuracy of energy metering. Figure 1As shown, the system includes: a control platform, a signal transmission unit, and a measurement and control component.

[0029] The control platform establishes a communication connection with the measurement and control components through the signal transmission unit. The signal transmission unit is a collection of communication devices used to implement communication functions and transmit signals. For example, the signal transmission unit may include signal transmission lines, switches, routers, signal processing equipment, etc.

[0030] In energy recovery and utilization scenarios, since the distance to the external energy supply network from the plant is relatively long, the signal transmission unit can use wireless transmission. For example, Figure 2 As shown, the signal transmission unit can use the GPRS / CDMA wireless communication network platform to collect and display the energy usage parameters of each user in the pipeline network, including temperature, pressure, flow rate, heat, etc., and transmit the parameter information back to the energy supplier's management and control platform.

[0031] It should be noted that since energy metering instruments and other monitoring and control components are located far from the energy supply side, the signal transmission unit can use wireless communication. However, the communication methods supported by the signal transmission unit are not limited to wireless communication; wired communication methods can also be used for signal transmission. For example, the signal transmission unit can use wired communication such as cables, network cables, and fiber optics; there are no specific restrictions on this.

[0032] The measurement and control component is used to perform data measurement and energy supply control in the energy metering system. Therefore, the measurement and control component includes metering instruments and control valves. The metering instruments and control valves are installed on the energy supply pipeline; for example, they can be located one meter outside the boundary line of the energy user's property.

[0033] Energy metering instruments, also known as energy measurement meters, serve as the basis for measurement and settlement by energy suppliers and are highly sensitive to the metering method and accuracy. Therefore, installing suitable energy metering instruments can achieve accurate energy measurement, allowing for more energy consumption to be measured more and less energy consumption to be measured less. This not only meets the diverse energy supply needs of different users but also improves the metering efficiency of energy supply stations.

[0034] The type and number of metering instruments are determined based on the type of energy being transported in the energy supply pipeline. For example, the type of energy being transported may include at least one of heat exchange medium flow, gas flow, and steam flow. Since heat exchange medium flow is used to transfer heat through a heat exchange medium, and water has a high specific heat capacity, making it suitable as a heat exchange medium, the heat exchange medium flow can be water flow. Industrial water supply includes circulating hot water, circulating cooling water, and circulating chilled water.

[0035] Different types and quantities of metering instruments can be set for different types of energy being transmitted. For example... Figure 3 As shown, for the type of energy transported using heat exchange medium flow, the energy supply station can form a water circulation system with the user, including a circulating water supply channel and a circulating water return channel. The circulating water supply channel can extend from the supply side to the user side, and the circulating water return channel can extend from the user side to the supply side. Through these two circulation channels, the user consumes heat or cold water from the circulating water supply and then returns the circulating water to the supply side, repeating the cycle to form an energy circulation system.

[0036] When the energy being transferred is a heat exchange medium, the metering instruments can include a flow meter and a thermometer. The thermometer can be installed in the circulating water supply channel and the circulating water return channel to detect the inlet and outlet temperatures, respectively. The flow meter is installed in the circulating water supply channel to detect the water flow rate in the supply channel. Furthermore, an electrically controlled shut-off valve can also be installed in the circulating water supply channel to control the opening and closing status of the entire water circulation system.

[0037] like Figure 4 As shown, industrial gas supply includes compressed air, purified compressed air, nitrogen, etc. When the type of energy being transported is a gaseous flow, the metering instrument can include a flow meter. An energy supply pipeline is established by setting up a gas supply line between the energy supply station and the user. The flow meter is installed on the gas supply pipeline to measure the flow rate of the gas being transported in the pipeline. To obtain more accurate measurement results, the flow meter can be a mass flow meter, or when the flow meter is a volumetric flow meter, a volumetric flow rate can be converted to a mass flow rate using a volume-to-mass conversion algorithm.

[0038] like Figure 5 As shown, when the energy being transported is steam, the metering instruments can include a throttling device and a flow meter. An energy supply pipeline is established by setting up a steam transport pipeline between the energy supply station and the user. The throttling device and flow meter can be installed on the steam transport pipeline to measure the flow rate of the steam being transported in the pipeline. Similarly, to obtain more accurate metering results, the flow meter can be a mass flow meter, or when the flow meter is a volumetric flow meter, a volumetric flow rate can be converted to a mass flow rate using a volume-to-mass conversion algorithm.

[0039] In some embodiments, the metering instrument can also use a throttling device adapted to a differential pressure transmitter to measure the mass flow rate of steam. That is, a throttling device and an adapted differential pressure transmitter can be installed on the steam delivery pipeline to detect the mass flow rate. The throttling device is a device that creates a pressure difference in the fluid by locally narrowing the flow cross-sectional area in the pipeline. The differential pressure transmitter is a sensor used to measure the pressure difference before and after the throttling device and convert the pressure difference into a standard electrical signal or a digital signal output. By combining a throttling device with a differential pressure transmitter, medium to high flow rate measurements under stable operating conditions can be achieved, simplifying the structure of the measuring device.

[0040] Metering instruments are configured to detect basic metering data, converting physical signals such as pressure, temperature, flow rate, and heat into electrical signals and sending this basic metering data to the management and control platform. The management and control platform, short for energy management and control platform, can convert, calculate, transmit, and store data generated during the energy metering process. This enables the basic metering data detected by the metering instruments to be transformed into settlement metering data that can be used for subsequent calculations, and generates metering information based on the settlement calculation data to achieve better energy recovery and utilization.

[0041] In some embodiments, the measurement and control components may further include a control center. The control center is the remote data acquisition terminal of the energy supply system, which can realize automatic energy supply control based on the acquired real-time data. The control center is responsible for processing the data transmitted by metering instruments, can automatically determine the energy supply quality based on the data, can accumulate and display the energy supply curve in real time, and supports automatic adjustment of energy supply according to the energy supply conditions set in the plant area. For example, the control center can cut off the energy supply valve when the energy supply reaches its upper limit. The control center can also automatically adjust the opening of the energy valve according to fluctuations in energy usage.

[0042] Therefore, the control valve can automatically adjust its opening based on the user's energy consumption. For example, the control valve and the energy supply pressure parameter form a feedforward regulation loop, which can stabilize the supplied energy pressure at a certain value. When the user's energy consumption reaches its peak, the energy consumption on the user side increases. To stabilize the energy supply pressure, the control valve automatically increases its opening. When the user's energy consumption decreases, the control valve automatically decreases its opening. This ensures energy supply quality, and even when the energy supply pressure is stable at a certain value, the valve opening can be automatically adjusted according to the user's energy consumption. The control valve can only be remotely controlled from the control center at the energy supply center; it cannot be closed, opened, or its opening adjusted locally to prevent accidental operation or unauthorized opening by users due to non-payment.

[0043] In some embodiments, the data transmission unit can utilize a GPRS / CDMA wireless or wired communication network platform to collect energy consumption parameters (including temperature, pressure, flow rate, heat, etc.), valve status, and image data from various users in the energy metering instrument, and display them at the control center. Statistical comparative analysis can be performed based on the collected data, and algorithms can be used to detect pipeline losses and other conditions in real time.

[0044] In some embodiments, the control center may have prepaid energy management (account management) capabilities, enabling user energy recharge management, settlement management, and other functions. When the user's prepaid balance is insufficient, an alarm can be triggered to remind both the energy supplier and the user. In case of arrears, the control valve can be automatically shut off, thus cutting off the energy supply.

[0045] The control center can also automatically predict the peak and valley conditions of the next period based on the peak and valley periods over a period of time using an algorithm, and input the algorithm into the control loop of the control valve to make the valve opening more precise and the power supply more stable.

[0046] In addition, the energy metering system can also provide the control center with a cloud server, which can upload real-time and historical data to the cloud server and view various data of the energy supply network anytime and anywhere through a mobile APP.

[0047] Therefore, the management and control platform can be an electronic device with data processing and communication capabilities. This electronic device includes, but is not limited to, computers, servers, mobile terminals, smart wearable devices, and industrial control machines. For ease of description, this application embodiment directly uses the management and control platform as the execution subject in the data processing process. It should be understood that the corresponding data processing process can also be implemented using other types of execution subjects, which will not be shown in this application embodiment.

[0048] The management and control platform can perform functions such as data processing, pipeline control, and on-site monitoring. Among these, data processing broadly refers to the data processing process of calculating settlement metering data based on basic metering data, and generating metering information based on settlement metering data.

[0049] Pipeline control refers to the process of controlling energy supply pipelines based on the final results or intermediate data generated during data processing. For example, an electric shut-off valve can be added after the energy metering instrument, and in conjunction with an energy management platform, the energy supply quantity can be calculated based on the energy supply mode and energy usage standards. When the energy consumption reaches the energy supply quantity, the electric shut-off valve is controlled to close, thereby cutting off the energy supply pipeline and stopping the energy supply.

[0050] On-site monitoring uses data collected by measurement and control components to monitor the operational status of the entire energy metering system. When abnormal conditions occur, the control platform can take corresponding measures, such as automatically shutting off energy supply pipelines and generating alarm signals, to improve the safety of the energy metering system.

[0051] In some embodiments, the energy metering system may also include an image acquisition device, which may include a camera and a data transmission circuit, for acquiring images of the industrial site environment and sending the acquired monitoring images to the management and control platform, so that the management and control platform can remotely monitor the area based on the monitoring images.

[0052] To achieve functions such as data processing, pipeline control, and on-site monitoring, the energy management platform set up by the energy supplier can be configured with data processing modules, prepaid management modules, pipeline loss analysis modules, and video image processing models. These configured modules enable intelligent data analysis, equipment management, and operational management of the entire energy supply network. This allows the management platform to function as a comprehensive management service platform, collecting and displaying energy usage parameters for each user, including temperature, pressure, and flow rate, as well as performing metering and billing, and video image processing functions.

[0053] The energy metering system may also include a power supply module, which supplies electrical energy to the energy metering system to maintain its normal operation. In some embodiments, since the energy metering system is located far from the energy supply side, the power supply module can be uniformly designed to power lithium batteries, solar panels, or a unified power supply from the user side.

[0054] To address the problem of low accuracy in energy metering, such as Figure 6 As shown, the control platform is configured to execute an energy metering method, which includes the following steps: S101. Obtain the type of energy being transported.

[0055] The type of energy being transported is pre-set based on the actual energy supply situation. This type includes at least one of heat exchange medium flow, gas flow, and steam flow. The control platform can obtain the type of energy being transported from the system configuration file. For example, when deploying an energy metering system, the user can manually set the type of energy being transported and create a system configuration file. Then, when executing the energy metering function, the control platform calls the system configuration file and reads the type of energy being transported from it.

[0056] The control platform can also identify the type of energy being transported by detecting basic metering data through metering instruments. Specifically, in some embodiments, to obtain the type of energy being transported, the control platform can send a type detection command to the metering instruments. This command enables the metering instruments to return instrument identification information and basic metering data to the control platform. The control platform then receives the data from the metering instruments and determines the type based on this data. Therefore, by reading the instrument identification information, determining that the metering instruments include liquid flow meters and thermometers, and that the flow rate detected by the metering instruments is within the flow range of the heat exchange medium, and the measured temperature is within the liquid temperature range of the heat exchange medium, then the type of energy being transported can be determined to be heat exchange medium flow.

[0057] By reading the instrument identification information, it can be determined that the metering instrument includes a flow meter for detecting gas flow. If the gas flow rate is within a preset gas flow rate range in the basic metering data detected by the flow meter, it can be determined that the type of energy being transported is gas flow.

[0058] Similarly, by reading the instrument identification information, it can be determined that the metering instrument includes a throttling device and a differential pressure transmitter. Furthermore, if the gas flow rate is within the preset steam flow rate range in the basic metering data detected by the throttling device and the compatible differential pressure transmitter, it can be determined that the type of energy being transported is steam flow.

[0059] S102. Query the metering basis information according to the type of energy being transmitted.

[0060] After obtaining the type of energy being transmitted, the management platform can query metering basis information based on the type of energy being transmitted. This metering basis information includes the quantification strategy for the transmitted energy. The metering basis information can be stored in the management platform's operation and maintenance database. After obtaining the type of energy being transmitted, the management platform can access the operation and maintenance database and perform information queries based on the type of energy being transmitted to obtain the metering basis information associated with that type of energy.

[0061] In some embodiments, the type of energy being transmitted and the metering basis information can be stored in the operation and maintenance database in the form of a mapping table. For example, a type code can be set for the type of energy being transmitted. After obtaining the type of energy being transmitted, the management platform can query the information in the operation and maintenance database according to the type code. When the metering basis information that has a mapping relationship with the type code is found, this metering basis information can be extracted to obtain the quantitative strategy for the transmitted energy.

[0062] Based on the metering information obtained from the query, the management platform can adopt different quantification strategies for different types of transported energy. Specifically, for transported energy of the heat exchange medium type, the metering basis is the heat or cooling consumed by the user, not the conventional flow rate. Therefore, for energy metering in circulating water mode, a heat meter is selected as the metering basis. When the supplied energy is gas, i.e., the transported energy type is a gas flow, a mass flow meter can be selected as the metering basis. And when the transported energy type is steam flow, the steam flow rate under standard conditions is selected as the metering basis.

[0063] S103, Receive basic measurement data.

[0064] After obtaining the metrological basis information, the management platform can further quantify the data detected by the measuring instruments based on the quantification strategy in the metrological basis information. Before quantification, it is necessary to receive basic metrological data, which corresponds to the measuring instruments. The basic metrological data includes at least one of temperature data, pressure data, flow data, and heat data.

[0065] To obtain basic metering data, in some embodiments, the control platform is further configured to first determine the monitoring and control targets based on the type of energy being transmitted. These targets include target energy supply pipelines, target metering instruments, and target control valves. The target control valve is a control valve installed on the target energy supply pipeline. The target metering instrument is a metering instrument used to measure basic metering data in the target energy supply pipeline.

[0066] In some embodiments, to determine the target metering instrument, the management platform may first acquire the energy usage parameters, extract the working time from the energy usage parameters, and determine the peak and off-peak periods to which the working time belongs. Then, it may determine the data statistical interval of the basic metering data according to the peak and off-peak periods, and determine the target metering instrument based on the data statistical interval.

[0067] Because users experience peak and off-peak energy consumption at different times, and the actual energy delivered in the energy supply pipeline differs between these periods, meters should have a large effective range to meet the measurement needs of different operating conditions. Alternatively, meters with different ranges can be used to adapt to peak and off-peak conditions. During peak periods, large-range meters are used to meet the high delivery volume demands, while during off-peak periods, smaller-range meters are used to improve measurement accuracy.

[0068] After determining the measurement and control target, the control platform can generate a data acquisition request and send the data acquisition request to the target metering instrument. The data acquisition request can control the target metering instrument to send detection data to the control platform. Therefore, the data acquisition request includes the data item types contained in the basic metering data specified according to the type of energy being transmitted.

[0069] For example, when the energy being transported is a heat exchange medium, the basic metering data can be specified as flow rate data and temperature data in the data acquisition request. Correspondingly, the target metering instruments are a flow meter and a temperature sensor installed on the water circulation pipeline. After sending the data acquisition request to the target metering instruments, the flow rate data and temperature data detected by the flow meter and temperature sensor can be obtained.

[0070] After sending a data acquisition request to the target metering instrument, the control platform can receive the basic metering data fed back by the target metering instrument in response to the data acquisition request, thereby obtaining the basic metering data for subsequent calculation of settlement metering data.

[0071] In some embodiments, when the control platform receives basic metering data, it can read the received basic metering data to determine whether the basic metering data is complete. When the basic metering data is incomplete, the missing content can be supplemented by image acquisition. Therefore, the measurement and control component also includes an image acquisition device, which is configured to acquire image data of the target monitoring area and send the image data to the control platform.

[0072] Correspondingly, the control platform is also configured to determine the necessary metering set based on the type of energy being transmitted, wherein the necessary metering set includes at least one data item. Then, based on the necessary metering data, it iterates through the missing data items in the basic metering data. If the basic metering data includes at least one missing data item, image data can be acquired, and the monitoring target can be identified from the image data, i.e., the metering instrument used to detect missing data items can be identified. Then, the acquisition results of the monitoring target are read through the image data, and the basic metering data is completed based on the acquisition results.

[0073] For example, when the energy being transported is a heat exchange medium flow, the basic metering data obtained by the control platform needs to include flow rate data and temperature data. The temperature data also needs to include inlet and outlet temperatures. After obtaining the basic metering data, the control platform can check whether the acquired basic metering data includes flow rate data, inlet temperature, and outlet temperature. When the inlet temperature is missing, it can be determined that the missing data item is the inlet temperature. In this case, the monitoring target can be identified as the temperature sensor installed at the inlet of the water circulation pipeline. The temperature sensor target is then identified from the image data, and the detection data of the temperature sensor is read from the image data based on the target identification result to obtain the inlet temperature.

[0074] It should be noted that the control platform can identify the monitored target from the image data based on Optical Character Recognition (OCR) technology or on an image detection model, thereby obtaining the collection results to supplement the basic measurement data.

[0075] S104. Calculate and settle measurement data based on measurement basis information and basic measurement data.

[0076] After acquiring the metering basis information and basic metering data, the management and control platform can calculate the settlement metering data, that is, calculate the settlement metering data based on the metering basis information and basic metering data. The settlement metering data is quantified data calculated according to the quantification strategy of the transmitted energy, based on at least one basic metering data and energy usage parameters. The energy usage parameters include at least one of the following: operating temperature, operating pressure, operating time, type of metering instrument, and flow range.

[0077] Since the types of energy being transported are categorized into three calculation modes—water (heat exchange medium), gas, and steam—after obtaining the basic metering data from the metering instruments, the settlement metering data can be calculated based on the metering basis information and the basic metering data according to the following metering calculation method.

[0078] In some embodiments, if the type of energy being transported includes a heat exchange medium flow, the control platform is further configured to extract first flow rate data and first temperature data from the basic metering data. The first flow rate data is the volumetric flow rate collected by a flow sensor located at the inlet of the energy supply pipeline; the first temperature data includes the inlet temperature and the outlet temperature, which are respectively the temperatures collected by temperature sensors located at the inlet and outlet of the energy supply pipeline.

[0079] For example, taking the heating system of a northern city as an example, when the heat exchange medium flows through the integrated heat meter or combined heat meter installed in the heat exchange system, the data processing module of the control platform calculates and displays the heat energy released or absorbed by the heating system based on the flow rate measured by the flow sensor, the inlet temperature and outlet temperature measured by the temperature sensor, and the time the medium flows through.

[0080] After extracting the first flow rate data and the first temperature data, the control platform can calculate the medium mass flow rate based on the first flow rate data. The medium mass flow rate is the product of the first flow rate data and the medium density.

[0081] For example, after obtaining the density and volumetric flow rate of the medium flowing through the heat meter, the control platform can calculate the mass flow rate of the medium flowing through the heat meter using the following formula:

[0082] in, q m This indicates the mass flow rate of the medium, that is, the mass flow rate of the medium passing through the heat meter, and the unit is kilograms per hour (kg / h). ρ This indicates the density of the medium flowing through the heat meter, expressed in kilograms per cubic meter (kg / m3). q v This indicates the volumetric flow rate of the medium passing through the heat meter, expressed in cubic meters per hour (m³ / h).

[0083] Next, the mass enthalpy of the medium at the inlet and outlet temperatures is obtained, and the operating time is extracted from the energy usage parameters. Then, the supplied heat is calculated based on the medium mass flow rate, mass enthalpy, and operating time, wherein the supplied heat is the integral of the medium mass flow rate and the mass enthalpy over the operating time.

[0084] For example, the heat released or absorbed by a heat exchange system can be calculated using the following formula:

[0085] In the formula, Q This indicates the supplied heat, that is, the heat released or absorbed by the system, and the unit is kilojoules (kJ). q m The value represents the mass flow rate of the medium, i.e., the mass flow rate of the medium passing through the heat meter, in kilograms per hour (kg / h); ∆h represents the mass enthalpy value, i.e., the mass enthalpy value of the medium at the inlet and outlet temperatures of the heat exchange system, in kilojoules per kilogram (kJ / kg). τ To represent working time, the unit is hours (h). τ 0 indicates the start time; τ 1 represents the current time.

[0086] Based on the heat supply calculation method provided in the above embodiments, the energy metering system can measure the transported energy of the heat exchange medium flow type according to the heat supply, thereby improving the accuracy of the metering results.

[0087] In some embodiments, if the type of energy being transported includes a gas flow, the control platform is further configured to extract second temperature data, first pressure data, and second flow rate data from the basic metering data. The second flow rate data is the mass flow rate collected by a flow sensor located at the inlet of the energy supply pipeline.

[0088] Then, a first temperature and pressure compensation parameter is calculated based on the second temperature data and the first pressure data. Then, based on the first temperature and pressure compensation parameter, temperature and pressure correction is performed on the second flow data to obtain settlement metering data, which includes the corrected second mass flow rate.

[0089] For example, when the energy supply is gas, the energy metering system can choose a mass flow meter as the metering instrument. Compared to other gas measuring instruments, mass flow meters offer higher measurement accuracy, reaching an accuracy class of 0.5%. Simultaneously, by selecting appropriate temperature and pressure measuring devices to perform temperature and pressure correction for the flow meter, the gas flow rate under operating conditions is converted to the gas flow rate under standard conditions for easy billing.

[0090] In some embodiments, if the type of energy being transported includes steam flow, the control platform is further configured to extract second pressure data from the basic metering data, wherein the second pressure data includes the pressure before throttling and the pressure after throttling. The throttling pressure difference is then calculated based on the pressure before and after throttling, and a throttling compensation coefficient is obtained. The steam mass flow rate is then calculated based on the throttling pressure difference and the throttling compensation coefficient. That is, the steam mass flow rate is obtained by multiplying the square root of the throttling pressure difference by the throttling compensation coefficient.

[0091] For example, for steam of different pressure and temperature levels, energy metering systems can select different throttling devices to measure its flow rate. These throttling devices can include standard nozzles, long-neck nozzles, Venturi tubes, balanced orifice plates, and constant-velocity tubes. The measurement principle of throttling devices is Bernoulli's equation, which simplifies to:

[0092] In the formula, Q s This indicates the steam mass flow rate, expressed in tons per hour (t / h). k ∆p represents the compensation coefficient of the throttling device; ∆p represents the differential pressure before and after the throttling device, in Pa.

[0093] If the type of energy being transported includes steam flow, in some embodiments, the control platform is further configured to extract the flow range from the energy usage parameters and extract the second pressure data from the basic metering data based on the steam mass flow rate and the flow range, wherein the flow range includes a first flow range and a second flow range. When extracting the second pressure data from the basic metering data, if the steam mass flow rate is within the measurement range corresponding to the first flow range, the second pressure data detected by the differential pressure transmitter corresponding to the first flow range is obtained; if the steam mass flow rate is within the measurement range corresponding to the second flow range, the second pressure data detected by the differential pressure transmitter corresponding to the second flow range is obtained.

[0094] Then, a third temperature data is extracted from the basic metering data, and a second temperature and pressure compensation parameter is calculated based on the third temperature data and the second pressure data. Then, based on the second temperature and pressure compensation parameter, temperature and pressure correction is performed on the steam mass flow rate to obtain settlement metering data, wherein the settlement metering data includes the corrected steam mass flow rate.

[0095] For example, considering the various operating conditions of steam used by users, steam measurement adopts multi-range flow measurement to ensure that both small and large flow rates can meet the requirements. Therefore, a throttling device can be equipped with two differential pressure transmitters, namely differential pressure transmitter A and differential pressure transmitter B. Differential pressure transmitter A has a measurement range of 0-50%, and differential pressure transmitter B has a measurement range of 50-100%. The control platform can then select a suitable temperature and pressure measuring device to perform temperature and pressure correction for the flow meter, converting the steam flow rate under operating conditions into the steam flow rate under standard conditions for subsequent metering and settlement.

[0096] S105. Generate measurement information based on settlement measurement data.

[0097] After calculating and obtaining the settlement metering data, the management and control platform can generate metering information based on the settlement metering data. The metering information is used for energy management, settlement, supply control, and result display, and can include various information formats, such as numbers, text, icons, and control commands.

[0098] In some embodiments, to implement control actions based on metering information, the control platform is further configured to acquire energy settlement data, wherein the energy settlement data includes at least one of planned energy supply and actual energy consumption. The metering information is then compared with the energy supply data to generate a supply control command. The supply control command is then sent to the control valve to control the control valve to open or close the energy supply pipeline.

[0099] For example, in a cold source supply station, chilled water can be provided to users through energy supply pipelines. A wireless heat meter can be installed one meter away from the user's side. The heat usage information (supply and return water temperature, heat, etc.) collected by the heat meter can be transmitted back to the control system of the cold source supply station through wireless transmission, so that the operators of the cold source supply station can monitor the cooling information in real time.

[0100] Therefore, the management platform can use cooling capacity as the metering and settlement method for chilled water energy, rather than using flow rate as the sole basis for settlement. By measuring users' cooling consumption in real time, it can achieve a control method of metering more cooling consumption and less cooling consumption, and automatically shut off functional pipelines via electric shut-off valves when the cooling capacity reaches the demand. This not only meets the different energy supply needs of different users, but also improves the accuracy of cooling metering at the energy supply station.

[0101] As can be seen, the energy metering system provided in the above embodiments executes energy metering methods through a control platform. It can combine relevant energy supply schemes and practical engineering design experience, considering the characteristics of the energy supply medium, and employing scientific energy metering schemes for water, gas, and steam to improve meter accuracy. Specifically, for water as energy, a heat meter is used; for gas as energy, a mass flow meter is used; and for steam, a throttling device combined with a dual differential pressure transmitter is used. At the control system level, an energy control platform can be added. This platform can be set up independently or integrated into the control system. The energy control platform adopts a pre-quantity mode, cutting off energy supply to the user side by closing an electric valve when the user's supply is exhausted. The energy supply method deployed in the above energy supply system has promotional value and can be further optimized and modified for different energy supply systems to make it suitable for various energy supply systems.

[0102] By applying the technical solutions of the above embodiments, this application provides an energy metering system and method. The system includes a control platform, a signal transmission unit, and a measurement and control component. The control platform establishes a communication connection with the measurement and control component through the signal transmission unit. The measurement and control component includes metering instruments and control valves, used for detecting basic metering data and controlling energy supply pipelines, respectively. After obtaining the type of energy being transported, the control platform can query metering basis information based on the type of energy being transported. Then, it calculates settlement metering data based on the metering basis information and basic metering data, thereby generating metering information based on the settlement metering data. The system can select appropriate metering methods for different types of transported energy and can also utilize different metering instruments for data detection to meet the metering requirements of energy use under all operating conditions, improve the accuracy of energy metering, and solve the problem of low energy metering accuracy.

[0103] This application also provides a computer device, specifically a personal computer, server, network device, etc. The computer device includes a bus, processor, memory, and communication interface, and may also include input / output interfaces and a display device. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer device stores location information. The network interface of the computer device is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the steps in the various method embodiments.

[0104] Those skilled in the art will understand that the structure of the computer device described above is only a partial structure related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. A specific computer device may include more or fewer components, or combine certain components, or have different component arrangements.

[0105] In one embodiment, a computer-readable storage medium is also provided, which may be non-volatile or volatile, and a computer program is stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0106] In one embodiment, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0107] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0108] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods.

[0109] Any references to memory, database, or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc.

[0110] Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0111] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchain. The processors involved in the embodiments provided in this application may be, but are not limited to, general-purpose processors, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An energy metering system, characterized by, The application is applied to an energy supply station, which establishes a connection path with an energy use target through an energy supply pipeline; the system comprises a management and control platform, a signal transmission unit and a measurement and control component; The management and control platform establishes a communication connection with the measurement and control component through the signal transmission unit; the measurement and control component comprises a metering instrument and a control valve; the metering instrument and the control valve are arranged on the energy supply pipeline; the type and the number of the metering instrument are set according to the type of the energy transported in the energy supply pipeline; the metering instrument is configured to detect basic metering data and send the basic metering data to the management and control platform; the management and control platform is configured to: obtain the type of the energy transported, which comprises at least one of heat exchange medium flow, gas flow and steam flow; query metering basis information according to the type of the energy transported, the metering basis information comprising a quantization strategy of the energy transported; receive basic metering data, which comprises at least one of temperature data, pressure data, flow data and heat data; calculate settlement metering data according to the metering basis information and the basic metering data, the settlement metering data being quantization data obtained according to at least one of the basic metering data and an energy use parameter according to the quantization strategy of the energy transported; the energy use parameter comprising at least one of use temperature, use pressure, working time, type of the metering instrument and flow range; generate metering information based on the settlement metering data.

2. The energy metering system of claim 1, wherein, The management and control platform is further configured to: determine a measurement and control target according to the type of the energy transported, the measurement and control target comprising a target energy supply pipeline, a target metering instrument and a target control valve; the target metering instrument being a metering instrument for measuring basic metering data in the target energy supply pipeline; the target control valve being a control valve arranged on the target energy supply pipeline; generate a data acquisition request and send the data acquisition request to the target metering instrument, the data acquisition request comprising a data item type included in the basic metering data specified according to the type of the energy transported; receive the basic metering data fed back by the target metering instrument in response to the data acquisition request.

3. The energy metering system of claim 2, wherein, The management and control platform is further configured to: obtain the energy use parameter; extract the working time from the energy use parameter and determine a peak-valley period to which the working time belongs; determine a data statistical interval of the basic metering data according to the peak-valley period; determine the target metering instrument according to the data statistical interval.

4. The energy metering system of claim 1, wherein, If the type of the energy transported comprises heat exchange medium flow, the management and control platform is further configured to: extract first flow data and first temperature data from the basic metering data, the first flow data being volume flow collected by a flow sensor arranged at an inlet position of the energy supply pipeline; the first temperature data comprising inlet temperature and outlet temperature; calculate medium mass flow according to the first flow data, the medium mass flow being the product of the first flow data and medium density; obtaining a mass enthalpy value of the medium at the import temperature and the export temperature, and extracting the working time from the energy usage parameters; calculating a supply heat, which is an integral of the mass flow of the medium and the mass enthalpy value over the working time.

5. The energy metering system of claim 1, wherein, If the type of the energy to be transported includes a gas flow, the management platform is further configured to: extracting second temperature data, first pressure data, and second flow data from the basic metering data, the second flow data being a mass flow obtained by a flow sensor arranged at an import position of the energy supply pipeline; calculating a first temperature-pressure compensation parameter according to the second temperature data and the first pressure data; performing temperature-pressure compensation on the second flow data based on the first temperature-pressure compensation parameter to obtain settlement metering data, the settlement metering data including the second mass flow after compensation.

6. The energy metering system of claim 1, wherein, If the type of the energy to be transported includes a steam flow, the management platform is further configured to: extracting second pressure data from the basic metering data, the second pressure data including a pressure before throttling and a pressure after throttling; calculating a throttling pressure difference according to the pressure before throttling and the pressure after throttling; obtaining a throttling compensation coefficient; calculating a steam mass flow according to the throttling pressure difference and the throttling compensation coefficient; the steam mass flow being a product of a square root of the throttling pressure difference and the throttling compensation coefficient.

7. The energy metering system of claim 6, wherein, The management platform is further configured to: extracting a flow range from the energy usage parameters, the flow range including a first flow range and a second flow range; extracting the second pressure data from the basic metering data according to the steam mass flow and the flow range, including: if the steam mass flow is located in a measurement range corresponding to the first flow range, obtaining the second pressure data detected by a differential pressure transmitter corresponding to the first flow range; and if the steam mass flow is located in a measurement range corresponding to the second flow range, obtaining the second pressure data detected by a differential pressure transmitter corresponding to the second flow range; extracting third temperature data from the basic metering data; calculating a second temperature-pressure compensation parameter according to the third temperature data and the second pressure data; performing temperature-pressure compensation on the steam mass flow based on the second temperature-pressure compensation parameter to obtain settlement metering data, the settlement metering data including the steam mass flow after compensation.

8. The energy metering system of claim 1, wherein, The management platform is further configured to: obtaining energy settlement data, the energy settlement data including at least one of a planned energy supply amount and an actual energy consumption amount; generating a supply control instruction by comparing the metering information with the energy supply data; and sending the supply control instruction to the control valve to control the control valve to open or close the energy supply pipeline.

9. The energy metering system of claim 1, wherein, The measurement and control assembly further includes an image acquisition device configured to acquire image data of the target monitoring area and send the image data to the management platform; and the management platform is further configured to: determining a necessary metering set according to the type of the energy to be transported, the necessary metering set including at least one data item; traversing missing data items in the base metering data based on the necessary metering data; if the base metering data comprises at least one of the missing data items, acquiring the image data; identifying a monitoring target from the image data, the monitoring target comprising a metering instrument for detecting the missing data items; reading a collection result of the monitoring target from the image data, and completing the base metering data based on the collection result.

10. An energy metering method, characterized by, The method is applied to the energy metering system of any one of claims 1-9, and the method comprises: acquiring a type of the delivered energy, the type of the delivered energy comprising at least one of a heat exchange medium flow, a gas flow, and a steam flow; inquiring metering basis information according to the type of the delivered energy, the metering basis information comprising a quantification strategy of the delivered energy; receiving base metering data, the base metering data comprising at least one of temperature data, pressure data, flow data, and heat data; calculating settlement metering data according to the metering basis information and the base metering data, the settlement metering data being quantification data obtained according to at least one of the base metering data and an energy use parameter according to the quantification strategy of the delivered energy; the energy use parameter comprising at least one of a use temperature, a use pressure, a working time, a type of the metering instrument, and a flow range; generating metering information based on the settlement metering data.

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