TW202223817A - Electric energy measuring device - Google Patents

Abstract

An electric energy measuring device includes an electric energy measuring module, a key certificate management module, an encryption and decryption module, and a blockchain management module. The electric energy measurement module transmits the obtained electric energy information to the encryption and decryption module. The encryption and decryption module uses the private key to encrypt the electric energy information and transmits it to the blockchain management module. The blockchain management module transmits a data verification request including the encrypted electrical energy information and an identification code of the electrical energy measurement device to at least one target electrical energy measurement device among a plurality of other electrical energy measurement devices, so that the at least one target electric energy measuring device verifies the electric energy information, and when the electric energy information is successfully verified by the at least one target electric energy measuring device, the blockchain management module writes the electric energy information into a distributed ledger.

Description

Electric energy measuring device

The present invention relates to an electric energy measuring device, in particular to an intelligent electric energy measuring device that can report information through a network.

Smart meter is a new type of digital watt-hour meter, it will accurately mark the electricity consumption, and report the information through the network, which can save manpower without manual meter reading, and can be read remotely by the power company Electricity consumption data, understand the electricity consumption data of each time period, and use it to promote the time electricity price, so as to reduce the peak electricity consumption and achieve the balance of the power grid.

In addition, in recent years, due to the rapid development of renewable energy, smart home and electric vehicle technologies, and in line with the policy goals of energy saving, carbon reduction, and increasing the proportion of renewable energy, governments have actively encouraged the production of green electricity and promoted green electricity. Go to the free market.

However, whether it is for power consumption analysis or to ensure the correctness of green power transactions, how to properly record the power information measured by smart meters, expand the functions provided by smart meters, and implement edge computing technology to provide More perfect power management technology, and to improve the real-time computing and information security problems caused by relying on cloud servers for computing in the past are indeed a problem that needs to be solved urgently.

Therefore, the purpose of the present invention is to provide an electric energy measuring device that integrates blockchain technology to properly record electric energy information.

Therefore, the electric energy measuring device of the present invention is installed in a power line group, and is connected with a plurality of other electric energy measuring devices respectively installed in a plurality of other power line groups through a first communication network, and the power line group is connected with the other power line groups. The power line groups are respectively set in a plurality of power consumption and power supply environments, the power measurement device and the other power measurement devices together constitute a plurality of blockchain nodes in a blockchain system, and the power measurement device includes a A communication module connected to the first communication network, an electric energy measurement module, a key certificate management module, an encryption and decryption module, and a block chain management module.

The power measuring module is used for sensing the power input and output conditions of the power line group to obtain a corresponding power information.

The key certificate management module stores a private key, a unique identification code of the power measuring device, and a member list containing the respective identification codes of the other power measuring devices.

The encryption/decryption module is electrically connected to the electric energy measurement module and the key certificate management module, and is used for encrypting the electric energy information by using the private key.

The block chain management module is electrically connected to the communication module, the encryption and decryption module and the key certificate management module, and stores a distributed ledger for managing the distributed ledger.

Wherein, when the electric energy measurement module obtains the electric energy information, the electric energy measurement module transmits the electric energy information to the encryption/decryption module, and the encryption/decryption module encrypts the electric energy information by using the private key and transmits the electric energy information to the encryption/decryption module. A block chain management module, the block chain management module transmits a data verification request including the encrypted electric energy information and the identification code of the electric energy measuring device through the first communication network to the At least one target power measuring device among other power measuring devices, so that the at least one target power measuring device verifies the power information, when the power information is successfully verified by the at least one target power measuring device, the area The blockchain management module writes the energy information to the distributed ledger.

The effect of the present invention is: by using the electric energy measuring device as one of the blockchain nodes in the blockchain system, and verifying through the at least one target electric energy measuring device that the electric energy measuring device has The power information to be written into the distributed ledger, so as to properly record the power information.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

Referring to FIG. 1, an energy management and trading system includes a plurality of users 1 respectively held by a plurality of users, a plurality of power line groups 2 arranged in the electricity consumption and power supply environment where the users are located, a plurality of The power supply device groups 3 corresponding to the corresponding users and electrically connected to the power line groups 2 respectively, a plurality of power consumption device groups 4 corresponding to the corresponding users and electrically connected to the power line groups 2 respectively, and a first The communication network 100 or the second communication network 101 is connected to the users 1 , and is connected to the blockchain system 5 through the second communication network 101 with the power supply device group 3 and the power consumption device group 4 . In this embodiment, the first communication network 100 may be a wireless network, a wired network, or a 4G mobile network, etc., and the second communication network 101 may be a wireless network or a Bluetooth low energy wireless network communication, etc.

The implementation of each user terminal 1 can be a personal computer, a notebook computer, a tablet computer, or a smart phone. Each power supply device group 3 can be installed in the environment where the corresponding user is located, and includes, for example, at least one of a solar power generation device and a wind power generation device. Each electrical device group 4 is used to continuously sense operation information indicating its own operation status, and each electrical device group 4 can be installed in the environment where the corresponding user is located, and includes, for example, a The energy storage device is at least one of an energy storage system (Energy Storage System, ESS for short), an electrical appliance, a charging pile for an electric vehicle, and a smart socket for a plug-in electrical appliance. .

The blockchain system 5 includes a plurality of embodiments of the power measuring device 51 of the present invention, a central node 52 connected to the power measuring devices 51 via the first communication network 100 , and a central node 52 connected to the power measuring devices 51 via the first communication network 100 . A transaction platform 53 connected with the power measuring devices 51 , the central node 52 and the users 1 .

The power measuring devices 51 correspond to the users respectively and are connected to each other via the first communication network 100 , and are installed on the power line groups 2 , and together constitute a plurality of blockchains in the blockchain system 5 node. Each electric energy measuring device 51 is connected to the user terminal 1 held by the corresponding user via the first communication network 100 or the second communication network 101 , and is connected to the corresponding device via the second communication network 101 . The electricity where the user is located is connected to the electricity-consuming device group 4 of the power supply environment.

Referring to FIG. 2 , for each power measuring device 51 , the power measuring device 51 includes a communication module 511 connected to the first communication network 100 and the second communication network 101 , a communication module 511 corresponding to an electrical connection The electric energy measurement module 512 of the power line group 2, a key certificate management module 513 electrically connected to the communication module 511, an encryption and decryption of the electric energy measurement module 512 and the key certificate management module 513 electrically connected The module 514, a block chain management module 515 electrically connecting the communication module 511, the encryption and decryption module 514 and the key certificate management module 513, and an electrical energy measurement module 512 and the encryption module 515. The power analysis and prediction module 516 of the decryption module 514 is electrically connected to the communication module 511 and the weather information acquisition module 517 of the power analysis and prediction module 516 is electrically connected to the communication module 511 and the power The energy of the measurement module 512 , the key certificate management module 513 , the encryption and decryption module 514 , the blockchain management module 515 , the power analysis and prediction module 516 and the weather information capture module 517 The management module 518 , and an IoT device management module 519 electrically connecting the energy management module 518 and the communication module 511 . In this embodiment, each power measuring device 51 can be integrated into a single chip and implemented as a smart meter, or each module included in each power measuring device 51 can be implemented as a corresponding Integrated circuit (integrated circuit, referred to as IC).

The power measuring module 512 is used for sensing the input and output conditions of the power line set 2 to obtain a corresponding power information. The power information obtained by the power measuring module 512 includes a pair of the corresponding power line set 2 At least one of the power consumption information of the power input status of the power line group 2 and the power supply power information information of the power output status of the power line group 2, the power supply power information includes each of the corresponding power supply device group 3 A power supply information of the power supply status of the power supply device itself. In this embodiment, when the power supply device group 3 includes both the solar power generation device and the wind power generation device, the power output of the power line group 2 includes the solar power generation device. The output related to the device and the output related to the wind power generation device, so the power supply information obtained by the power measurement module 512 includes the power supply information of the solar power device and the power supply information of the wind power device. The key certificate management module 513 stores its own private key, a plurality of public keys corresponding to the private keys of blockchain nodes other than itself, a pair of unique identification codes of the power measuring device 51, and a A list of members including the respective identification codes of the other energy measuring devices 51, wherein the private key, the public keys, the unique identification code and the member stored by the key certificate management module 513 The list can be updated (eg, the central node 52 can update the private key, the public keys, the unique identifier and the member list stored in the key certificate management module 513, the key certificate management The module 513 can obtain the updated private key, the public keys, the unique identification code and the member list from the central node 52 through the communication module 511 via the first communication network 100). The encryption and decryption module 514 is used for encrypting and decrypting information using the private key and the public keys. The blockchain management module 515 stores a distributed ledger and is used for managing the distributed ledger. The weather information acquisition module 517 is used to obtain weather information. The power analysis and prediction module 516 is used for analyzing the power consumption information obtained by the power measurement module 512 by using a non-intrusive load monitoring technology to obtain each power consumption of the corresponding power consumption device group 4 A power consumption information of the power consumption status of the electric device itself, and for each power consumption device in the power consumption device group 4 corresponding to the power measurement device 51, the power analysis and prediction module 516 is also used to predict a predicted power consumption information indicating the power consumption status of the power consumption device in the future time interval, and for each power supply device in the power supply device group 3 corresponding to the power energy measuring device 51, the power analysis and prediction The module 516 is further configured to predict a predicted power supply information indicating the power supply status of the power supply device in the future time interval. The energy management module 518 is used for obtaining a recommendation information of electric energy indicating the way of electric energy selling and buying corresponding to the future time interval, and the power consumption device group 4 corresponding to the electric energy measuring device 51 in the future time interval. A power consumption schedule recommendation information indicating the power consumption schedule to be recommended. The IoT device management module 519 is used for receiving operation information of each electrical device of the electrical device group 4 . Among them, in this embodiment, the communication module 511, the power measurement module 512, the key certificate management module 513, the encryption and decryption module 514, the blockchain management module 515, the power analysis module The forecasting module 516 and the weather information capturing module 517 are controlled by the energy management module 518 to perform their corresponding functions.

The central node 52 stores a corresponding distributed ledger, a plurality of public keys corresponding to the private keys of the blockchain nodes, a pair of unique identification codes corresponding to the central node 52, and a data containing the electrical energy The member list of the respective identification codes of the measuring device 51, the central node 52 is used to run the smart contract in the blockchain system 5 to conduct electricity transactions. In this embodiment, the implementation of the central node 52 may be a personal computer, a notebook computer, a server computer, or a cloud server, etc.; however, in other embodiments, the central node 52 may also be configured by One of these blockchain nodes is implemented. The trading platform 53 announces a number of previously pending transactions related to electric energy.

In this embodiment, the energy management and trading system can be applied to a smart home, and each power supply device group 3, power consumption device group 4 and energy measurement device 51 are installed in the corresponding user's home. The invented electric energy measuring device 51 can analyze and predict the electricity consumption of the household for the user, and at the same time recommend the best electric energy trading method, the time, price and electric quantity to participate in the demand response, and further plan the corresponding electricity consumption. The automatic scheduling of loads (ie, the electrical device group 4 ) creates an all-round smart home for users. However. In other implementations, the energy management and transaction system can also be applied to various electric vehicle parking lots, providing electric vehicle owners, electricity suppliers, and electricity production and sales users with a complete energy management and transaction method, so that electric vehicle owners, From the original electricity consumer to the electricity producer and seller, by participating in electricity trading and demand response, we can earn additional profits. For electricity providers and electricity production and sales users, more operations can also be traded through the two-way electricity transaction provided by electric vehicles. In this way, it can not only attract more users to invest in the green energy market, increase the proportion of renewable energy, but also increase the stability of the overall power grid. Alternatively, the energy management and trading system should also be used in emerging virtual power plants to provide regional power trading, matching and dispatching from a small to a large scale. For example, electricity production, sales and consumption users in the community can conduct green energy trading through the recommendation of the electricity measuring device 51 provided by the present invention. volume response, earn extra profits, and at the same time maintain the stability of the grid. Power users between communities can also buy and sell excess green energy through the recommendation of the power measuring device 51 of the present invention, or cooperate with energy storage batteries to perform peak-shaving and valley-filling power operations, so that the overall power grid can be efficient and stable. and safe operation. Emerging virtual power plant operators can use this energy management and trading system to reduce power generation and operation costs, thereby increasing overall revenue. In addition, they can cooperate with government policies to encourage more household users to become electricity producers and sellers, increase the proportion of renewable energy, reduce The air pollution of the earth's environment can serve several purposes in one fell swoop.

The operation details of each element in the energy management and transaction system will be described below through an energy management and transaction method. The energy management and transaction method sequentially includes a power supply prediction model parameter acquisition program and an electricity consumption prediction model parameter acquisition program. , a recommendation program, a transaction power program, a transaction verification program, and a load control program.

Referring to FIG. 1, FIG. 2 and FIG. 3, the power supply prediction model parameter obtaining procedure of the energy management and trading method illustrates how to obtain the model parameters of a power supply prediction model for predicting the power supply condition of a power supply device to be predicted, and includes the following step. Since each energy measuring device 51 writes the power supply information of the corresponding power supply device to the distributed ledger, the operation is similar. In the following description, only a single energy measuring device 51 and a single power supply device are used. Be explained.

In step 201, when the power measuring module 512 of the power measuring device 51 obtains the power supply information of one of the corresponding power supply devices, the power measuring module 512 The power supply information is sent to the encryption/decryption module 514 of the power measuring device 51 .

In step 202 , the encryption/decryption module 514 of the power measuring device 51 encrypts the power supply information of the power supply device with its own private key and transmits it to the blockchain management module 515 of the power measuring device 51 .

In step 203 , the blockchain management module 515 of the electric energy measuring device 51 transmits a message including the encrypted power supply information and the identification code of the electric energy measuring device 51 through the first communication network 100 via the communication module 511 The data verification request is sent to at least one target power measuring device 51 among the other power measuring devices 51 .

In step 204, the at least one target power measuring device 51 verifies the power supply information of the power supply device. When the power supply information of the power supply device is successfully verified by the at least one target power measurement device 51, the process proceeds to step 205; when the power supply information of the power supply device is not successfully verified by the at least one target power measurement device 51, Process ends.

It is worth mentioning that step 204 also includes the following sub-steps (see FIG. 4 ).

In sub-step 241 , for each target electric energy measuring device 51 , the target electric energy measuring device 51 determines whether the identification code of the electric energy measuring device 51 in the data verification request exists in the target electric energy measuring device 51 . member list. When it is determined that the identification codes of the electric energy measuring device 51 are all present in the member list of the at least one target electric energy measuring device 51, the process proceeds to step 242; when it is determined that the identification code of the electric energy measuring device 51 does not exist in When any target energy measuring device 51 is in the member list, the power supply information of the power supply device has not been successfully verified by the at least one target energy measuring device 51, and the process ends.

In sub-step 242 , for each target power measurement device 51 , the target power measurement device 51 determines whether the encrypted power supply information in the data verification request can be successfully stored by the target power measurement device 51 The corresponding public key of the electric energy measuring device 51 is decrypted. When it is determined that the at least one target power measuring device 51 can be successfully decrypted, the power supply information of the power supply device is successfully verified by the at least one target power measuring device 51, and the process goes to step 205; when it is determined that any target power When the measuring device 51 cannot be successfully decrypted, the power supply information of the power supply device has not been successfully verified by the at least one target power measuring device 51, and the process ends.

In step 205 , the blockchain management module 515 of the power measuring device 51 writes the power supply information of the corresponding power supply device into the distributed ledger, and prompts other blockchains in the blockchain system 5 Both the node and the central node 52 write the power supply information of the power supply device corresponding to the power measurement device 51 into their corresponding distributed ledger, so as to synchronize each blockchain node in the blockchain system 5 and The distributed ledger of the central node 52 .

In step 206, the central node 52 obtains the current weather information in the current time interval.

In step 207, the central node 52 obtains a current time interval (eg, today) and a previous time interval (eg, today) earlier than the current time interval for each blockchain node from the distributed ledger it stores The previous week) is synchronously written, and corresponds to the current power supply information of its own power supply device (for example, the power supply information for the whole day today) and the previous power supply information (for example, the power supply information for the whole week before today), and the The current power supply information and previous power supply information corresponding to each blockchain node, and the current weather information are used as a corresponding power supply training data. Among them, the current power supply information in each power supply training data is used as the correct result (ie, the label) of the training data.

In step 208, the central node 52 uses a machine learning algorithm to obtain model parameters of the power supply prediction model according to the power supply training data corresponding to each blockchain node.

It is worth noting that, in this embodiment, when the power supply device group 3 includes both the solar power generation device and the wind power generation device, the power measurement modules 512 of the power measurement device 51 obtain the solar power generation device respectively. and the power supply information of the wind power generation device to respectively constitute power supply training data related to the solar power generation device and the wind power generation device, so that the central node 52 trains a data for predicting the solar power generation device according to the power supply training data related to the solar power generation device. The model parameters of the power supply prediction model for the power supply condition of the wind power generation device are trained according to the power supply training data related to the wind power generation device, and the model parameters of a power supply prediction model for predicting the power supply state of the wind power generation device are trained.

Referring to FIG. 1, FIG. 2 and FIG. 5, the power consumption forecast model parameter acquisition program of the energy management and transaction method illustrates how to obtain the model parameters of a power consumption forecast model for predicting the power consumption status of a power consumption device to be predicted. , and contains the following steps. Since the operation of each power measuring device 51 in writing the power consumption information of the corresponding power consumption device to the distributed ledger is similar, in the following description, only a single power measuring device 51 is used for description. .

In step 301, when the electric energy measurement module 512 of the electric energy measurement device 51 obtains the electric energy consumption information of the corresponding electric consumption device group 4, the electric energy measurement module 512 The power consumption information of group 4 is sent to the power analysis and prediction module 516 of the power measurement device 51 .

In step 302, the power analysis and prediction module 516 of the power measurement device 51 uses the non-intrusive load monitoring technology to analyze the power consumption information obtained by the power measurement module 512 to obtain the corresponding power consumption The power consumption information of the power consumption status of each power consumption device in the device group 4, and the corresponding power consumption information of each power consumption device in the power consumption device group 4 is sent to the power measurement device 51 The encryption and decryption module 514.

In step 303 , the encryption/decryption module 514 of the power measuring device 51 encrypts the power consumption information of each power consumption device with its own private key and transmits it to the blockchain management module 515 of the power measuring device 51 .

In step 304 , the blockchain management module 515 of the electric energy measuring device 51 transmits an encrypted information including the electric energy consumption of each electric device and the electric energy through the first communication network 100 via the communication module 511 The data verification request of the identification code of the measuring device 51 is sent to the at least one target electric energy measuring device 51 . Wherein, the at least one target power measuring device 51 may be the same as the at least one target power measuring device 51 in step 203 or at least one target power measuring device 51 randomly selected from other power measuring devices 51 .

In step 305, the at least one target power measuring device 51 verifies the power consumption information of each power consumption device. After the power consumption information of each power consumption device is successfully verified by the at least one target power measurement device 51, the process proceeds to step 306; when the power consumption information of each power consumption device is not verified by the at least one target power measurement device After 51 are successfully verified, the process ends. The information to be written into the distributed ledger must be verified by the at least one target energy measuring device 51 before being written. The verification process of the power supply information is similar, so it is not repeated here.

In step 306 , the blockchain management module 515 of the electric energy measuring device 51 writes the electricity consumption information of each corresponding electric device into the distributed ledger, and prompts the blockchain system 5 All other blockchain nodes and the central node 52 write the power consumption information of each power consumption device corresponding to the power measurement device 51 into their corresponding distributed ledger to synchronize the blockchain system 5 . The distributed ledger of each blockchain node and the central node 52.

In step 307, the central node 52 obtains from the distributed ledger stored therein the synchronous writing of each blockchain node in the current time interval (eg, today) and the previous time interval (eg, one week before today). input, and correspond to the current electricity consumption information (eg, the electricity consumption information of the whole day today) and the previous electricity consumption information (eg, the electricity consumption information of the whole week before today) of each of its own electricity consumption devices, and The current electricity consumption information and previous electricity consumption information corresponding to each blockchain node, and the current weather information are used as a corresponding electricity consumption training data. Among them, the current electricity consumption information in each electricity consumption training data is used as the correct result (ie, the label) of the training data.

In step 308, the central node 52 uses a machine learning algorithm to obtain model parameters of the electricity consumption prediction model according to the electricity consumption training data corresponding to each blockchain node.

It is worth noting that, in this embodiment, when the electrical device group 4 includes the energy storage device, the electrical appliance, the charging pile and the smart socket at the same time, the electrical energy analysis and prediction model of the electrical energy measuring device 51 The group 516 analyzes the power consumption information of the power consumption status of each power consumption device to form the power consumption training data related to the energy storage device, the electrical appliance, the charging pile and the smart socket, so that the central node 52 Model parameters of a general electricity consumption prediction model are trained according to the electricity consumption training data related to the energy storage device, the electrical appliance, the charging pile and the smart socket, and the general electricity consumption prediction model can be used to predict the energy storage device , the power consumption status of any load device such as the electrical appliance, the charging pile and the smart socket.

Referring to FIG. 1 , FIG. 2 and FIG. 6 , the recommendation procedure of the energy management and transaction method explains how to obtain the electricity selling and buying recommendation information indicating the electricity selling and buying method and the electricity consumption indicating the electricity consumption schedule to be recommended. Schedule recommendation information and include the following steps. Since the operation of each electric energy measuring device 51 for obtaining the selling and buying electric energy recommendation information and the electricity consumption scheduling recommendation information is similar, in the following description, only a single electric energy measuring device 51 is used for description. In addition, the operation of the power measuring device 51 in obtaining the predicted power supply information of each power supply device in the corresponding power supply device group 3 is similar, and in obtaining each power consumption in the corresponding power supply device group 4 The operation of the predicted power consumption information of the device is similar, so in the following specification, only a single power supply device and a single power consumption device are used for description.

In step 401 , the power analysis and prediction module 516 of the power measurement device 51 obtains the model parameters of the power supply prediction model and the power consumption prediction from the central node 52 through the communication module 511 via the first communication network 100 The model parameters of the model are used to update the power supply prediction model and the power consumption prediction model of the electric energy analysis and prediction module 516 of the electric energy measuring device 51 and perform edge calculation.

In step 402, the weather information acquisition module 517 of the electric energy measuring device 51 obtains the future weather information of the future time interval from the online weather forecasting platform through the communication module 511, and transmits it to the electric energy measuring device The power analysis and prediction module 516 of the device 51 . In other embodiments, the future weather information can also be obtained from a home weather information installed in the electricity consumption and power supply environment where the electric energy measuring device 51 is located through the communication module 511 by the weather information acquisition module 517 , for example. station to obtain.

In step 403, the electric energy analysis and prediction module 516 of the electric energy measuring device 51 obtains the future weather information corresponding to the future time interval (eg, tomorrow) and the electric energy according to the future weather information obtained by the weather information acquisition module 517. The power supply information of the power supply device in another previous time interval (eg, one week before tomorrow) earlier than the future time interval (eg, tomorrow) obtained by the measurement module 512 (eg, the power supply information of a whole week before tomorrow) , using the power supply prediction model to obtain the predicted power supply information indicating the power supply status of the power supply device in the future time interval, and send it to the energy management module 518 of the power measurement device 51 . In this embodiment, the power supply device group 3 corresponding to the electric energy measuring device 51 includes the solar power generation device and the wind power generation device, so the electric energy measuring device 51 will obtain the power supply of the solar power generation device in the future time interval The forecasted power supply information of the condition, and the forecasted power supply information of the power supply condition of the wind power generation installation in the future time interval.

In step 404 , the electric energy analysis and prediction module 516 of the electric energy measuring device 51 obtains the future weather information corresponding to the future time interval obtained by the weather information capture module 517 , and analyzes the power consumption device In the electricity consumption information of the other previous time interval (for example, the electricity consumption information of a whole week before tomorrow), the electricity consumption prediction model is used to obtain an information indicating the electricity consumption status of the electric device group 4 in the future time interval. The predicted power consumption information is sent to the energy management module 518 of the power measuring device 51 . In this embodiment, the electrical device group 4 corresponding to the electrical energy measuring device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, so the electrical energy measuring device 51 obtains the energy storage device The predicted electricity consumption information of the electricity consumption condition in the future time interval, the predicted electricity consumption information of the electricity consumption condition of the electrical appliance in the future time interval, the predicted electricity consumption information of the electricity consumption condition of the charging pile in the future time interval, Predicted electricity consumption information about the electricity consumption status of the smart socket in the future time interval.

In step 405 , the energy management module 518 of the energy measuring device 51 obtains future electricity price information in the future time interval from the trading platform 53 via the communication module 511 . In other embodiments, the future electricity price information can also be obtained from the mains electricity trading platform 53 on the line through the energy management module 518 through the communication module 511 .

In step 406, the energy management module 518 of the power measuring device 51 obtains the predicted power supply information of each power supply device in the future time interval obtained by the power analysis and prediction module 516, and each power consumption device The predicted electricity consumption information and future electricity price information, such as the conventional optimization planning procedure, is performed to obtain the electricity selling and buying recommendation information corresponding to the future time interval, and the communication module 511 through the first communication network 100 or the second communication network 101 is transmitted to the user 1 corresponding to the power measuring device 51 .

In step 407, the energy management module 518 of the electric energy measuring device 51 performs, for example, a conventional optimization according to the predicted electric energy consumption information of each electric device in the future time interval and the electric energy recommendation information. The planning process obtains the recommended power consumption schedule information of the power consumption device group 4 corresponding to the power measurement device 51 in the future time interval, and passes the communication module 511 through the first communication network 100 or the second communication network 100 The communication module 511 transmits to the user terminal 1 corresponding to the power measuring device 51 . In this embodiment, the power consumption device group 4 corresponding to the power measurement device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, so the power consumption schedule recommendation information includes the energy storage device A recommended data for the energy storage schedule of the electricity consumption schedule to be recommended in the future time interval, a recommended data for the electricity consumption schedule of the electrical appliance to be recommended in the future time interval, the A charging pile power consumption schedule recommendation data of the power consumption schedule to be recommended by the charging pile in the future time interval (that is, the schedule of how to charge and discharge the corresponding electric vehicle), and the smart socket in the A socket power consumption schedule recommendation data of the power consumption schedule to be recommended in the future time interval (ie, the schedule of how to control the opening and closing of the corresponding plug-in appliances).

Referring to FIG. 1 , FIG. 2 and FIG. 7 , the electric energy trading procedure of the energy management and trading method illustrates how to conduct electric energy trading, and includes the following steps. Since the operation of each consumer 1 for power transaction is similar, in the following description, only a single consumer 1, such as the consumer 1 held by a first user, is used for description.

In step 501 , the user 1 generates and transmits a message including a waiting list according to the recommendation information of electric energy for sale and purchase and the first user identification information corresponding to the first user received from the electric energy measuring device 51 . The transaction electric energy and the to-be-traded content of the first user identification information (eg, the first user A will sell 20 kWh of electricity at 9 o'clock tomorrow) are sent to the trading platform 53 . Wherein, the to-be-traded content is generated by the first user performing an input operation on the user terminal 1 after evaluating the actual buying and selling demand when the first user receives the electricity selling and buying recommendation information through the user terminal 1 .

In step 502 , when the central node 52 receives the content to be traded generated by the user 1 from the trading platform 53 , the central node 52 passes the content to be traded through the smart contract in the blockchain system 5 . Write into the distributed ledger corresponding to itself, announce the content to be traded on the trading platform 53, and urge each blockchain node in the blockchain system 5 to write the content to be traded into the corresponding The distributed ledger is to synchronize the distributed ledger of each block chain node in the block chain system 5 and the central node 52 .

In step 503, the central node 52 determines, through the smart contract in the blockchain system 5, whether there is a content to be traded that is the same as that announced in step 502 among all the previously unmatched transaction contents announced on the trading platform 53. Matching transaction content of the paired transaction. When the central node 52 determines that the pairing transaction content does not exist, the process returns to step 503; when the central node 52 determines that the pairing transaction content exists, the pairing transaction content includes another amount of electricity to be traded and corresponding to When the second user identification information of a second user (for example, the second user B wants to buy 20 kWh of electricity at 9 o'clock tomorrow), the process goes to step 504 .

In step 504, the central node 52 generates a transaction matching result according to the content to be traded announced in step 502 and the matching transaction content, and writes the transaction matching result into the corresponding transaction through the smart contract in the blockchain system 5 In the distributed ledger, and the transaction matching result is announced to the trading platform 53, and each block chain node in the block chain system 5 is urged to write the transaction matching result into its corresponding distributed ledger This is to synchronize the distributed ledger of each blockchain node in the blockchain system 5 and the central node 52 .

Referring to FIG. 1 , FIG. 2 , FIG. 8A and FIG. 8B , the transaction verification procedure of the energy management and transaction method illustrates how to verify the transaction of electric energy, and includes the following steps. After the transaction pairing is completed, the electric energy measuring devices 51 corresponding to the first user and the second user will perform electric energy transaction according to the transaction pairing result. In the following description, the transaction generated in step 504 is used. The pairing results are explained.

In step 601, the electric energy measuring module 512 of the electric energy measuring device 51 corresponding to the first user obtains a pair of settlement electric energy information corresponding to the content to be traded and indicating an actual transaction electric energy (eg, the first user The electric energy measuring device 51 corresponding to A detects the electric energy information of its output of 20 kWh of electricity at 9:00 tomorrow, and transmits the settled electric energy information to the encryption and decryption module 514 of the electric energy measuring device 51 .

In step 602 , the encryption/decryption module 514 of the electric energy measuring device 51 corresponding to the first user encrypts the settlement electric energy information with its own private key and transmits it to the blockchain management module 515 of the electric energy measuring device 51 .

In step 603, the blockchain management module 515 corresponding to the first user's electric energy measuring device 51 transmits a message including encrypted settlement electric energy information and the electric energy through the first communication network 100 via the communication module 511 The data verification request of the identification code of the measuring device 51 is sent to the at least one target electric energy measuring device 51 . Wherein, the at least one target power measuring device 51 may be the same as the at least one target power measuring device 51 in step 203 or at least one target power measuring device 51 randomly selected from other power measuring devices 51 .

In step 604, the at least one target power measuring device 51 verifies the settlement power information. When the settled power information is successfully verified by the at least one target power measuring device 51 , the process proceeds to step 605 ; when the settled power information is not successfully verified by the at least one target power measuring device 51 , the process ends.

In step 605 , the blockchain management module 515 corresponding to the energy measuring device 51 of the first user writes the settlement energy information into the distributed ledger, and prompts other areas in the blockchain system 5 Both the block chain node and the central node 52 write the settlement power information corresponding to the power measurement device 51 into their corresponding distributed ledger, so as to synchronize each block chain node in the block chain system 5 and The distributed ledger of the central node 52 .

In step 606, the central node 52 obtains settlement power information corresponding to the content to be traded from its distributed ledger, and generates a pair of first actual transaction content corresponding to the content to be traded according to the settlement power information.

In step 607, the electric energy measuring module 512 of the electric energy measuring device 51 corresponding to the second user obtains another settlement electric energy information corresponding to the paired transaction content and indicating another actual transaction electric energy (eg, the second The electric energy measuring device 51 corresponding to user B detects the electric energy information of his input of 20 kWh of electricity at 9:00 tomorrow), and transmits the other settlement electric energy information to the encryption/decryption module 514 of the electric energy measuring device 51 .

In step 608 , the encryption/decryption module 514 of the electric energy measuring device 51 corresponding to the second user encrypts the other settlement electric energy information with its own private key and transmits it to the blockchain management module of the electric energy measuring device 51 Group 515.

In step 609 , the blockchain management module 515 corresponding to the power measuring device 51 of the second user transmits a message including encrypted other settlement power information and The data verification request of the identification code of the electric energy measuring device 51 is sent to at least one target electric energy measuring device 51 among the other electric energy measuring devices 51 .

In step 610, the at least one target power measuring device 51 verifies the other settlement power information. When the other settlement power information is successfully verified by the at least one target power measurement device 51, the process proceeds to step 611; when the other settlement power information is not successfully verified by the at least one target power measurement device 51, Process ends.

In step 611 , the blockchain management module 515 corresponding to the second user's electric energy measuring device 51 writes the other settlement electric energy information into the distributed ledger, and prompts the blockchain system 5 All other blockchain nodes and the central node 52 write the other settlement energy information corresponding to the energy measuring device 51 into their corresponding distributed ledger to synchronize each area in the blockchain system 5 A distributed ledger of blockchain nodes and the central node 52 .

In step 612, the central node 52 obtains another settlement power information corresponding to the content of the paired transaction from the distributed ledger stored therein, and generates a pair of second power information corresponding to the content of the paired transaction according to the other settlement power information actual transaction content.

In step 613 , the central node 52 generates an actual transaction result according to the first actual transaction content and the second actual transaction content, and writes the actual transaction result into its corresponding through the smart contract in the blockchain system 5 in the distributed ledger, and announce the actual transaction result on the trading platform 53, and urge each block chain node in the block chain system 5 to write the actual transaction result into its corresponding distributed ledger Book. In this way, both the first user who sells electric energy or the second user who buys electric energy can determine whether the electric energy seller and the electric energy buyer really have to sell the electric energy through the verification of the central node 52 . The electric energy of the transaction content and the electric energy of buying its paired transaction content.

It is worth mentioning that, in other embodiments, the content to be traded may further include a type of electricity to be traded (for example, the electricity to be sold is generated by a solar power generation device), and similarly, the content to be paired may also include Another type of electricity to be traded (eg, the electricity to be purchased is generated by a solar power plant). Therefore, in step 601, the settlement power information obtained by the power measuring module 512 of the power measuring device 51 corresponding to the first user will also indicate which power supply device the output power is generated by (eg, The output power information is the power supply information of the solar power generation device).

Referring to FIG. 1 and FIG. 9 , the load control program of the energy management and transaction method illustrates how the electric energy measuring device 51 automatically controls the group 4 of electric power consumption devices, and includes the following steps. Since the control methods of each electric energy measuring device 51 are similar, in the following description, only a single electric energy measuring device 51 is used for description.

In step 701 , the user 1 generates and transmits information about the power consumption device group 4 corresponding to the power measurement device 51 on the The actual power demand information in a future time interval is sent to the power measuring device 51 . Wherein, the actual electricity demand information is input to the consumer 1 after evaluating the actual electricity demand when the user who holds the consumer 1 receives the electricity schedule recommendation information through the consumer 1. generated by the operation. In this embodiment, the electrical device group 4 corresponding to the electrical energy measuring device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, so the actual electrical demand information includes the energy storage device A piece of electricity demand data for energy storage in the future time interval, a piece of electricity demand data for the electrical appliance in the future time interval, a piece of electricity demand data for the charging pile in the future time interval, and the smart socket Power demand data for an outlet in this future time interval.

In step 702 , each electrical device of the electrical device group 4 corresponding to the electrical energy measuring device 51 continuously senses and transmits operation information indicating its own operation status to the connected electrical energy measuring device 51 . In this embodiment, the electrical device group 4 corresponding to the electrical energy measuring device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, wherein the operation information of the energy storage device includes the energy storage device The state-of-charge (SOC) of the battery of the device, the operating information of the electrical appliance includes the operating status of the electrical appliance, for example, if the electrical appliance is an air conditioner, the operating status of the air conditioner can be an ambient temperature, The operation information of the electric charging pile includes the state of charge of the battery of the electric vehicle using the charging pile, and the operation information of the smart socket includes the operation status of the plug-in appliance plugged into the smart socket, such as the on-off status of the plug-in appliance .

In step 703 , when the IoT device management module 519 of the electric energy measuring device 51 receives through the communication module 511 through the second communication network 101 each electric device of the electric device group 4 a current When the operation information of the time interval is obtained, the IoT device management module 519 transmits the operation information of the current time interval to the energy management module 518 of the power measuring device 51 .

In step 704 , the energy management module 518 of the energy measuring device 51 obtains each of the actual electricity demand information, the transaction matching result, and the energy measuring module 512 of the energy measuring device 51 The power supply information of the power supply device in the current time interval, the power consumption information of each power consumption device in the current time interval obtained by the power analysis and prediction module 516 of the power measurement device 51, and the power consumption information of each power consumption device. Based on the operation information of the current time interval, a linear programming method is used to generate a control command related to the electrical device group 4 corresponding to the electrical energy measuring device 51 at a future time interval later than the current time interval, so as to control the electrical energy measuring device 51. The operation mode of the electric device group 4 corresponding to the electric energy measuring device 51 in the future time interval. Wherein, the control command can control the charging and discharging of the energy storage device, the opening and closing of the electrical appliance, and can control the charging pile to charge and discharge the electric vehicle, and control the smart socket to turn on or off the plug-in electrical appliance.

To sum up, the power measuring device 51 of the present invention predicts the predicted power supply information and the predicted power consumption information through the power analysis and prediction module 516, whereby the energy management module 518 can supply power according to the prediction The information, the predicted electricity consumption information and the future electricity price information generate the electricity selling and buying recommendation information and the electricity consumption scheduling recommendation information, so as to recommend the best electricity selling and buying method and electricity consumption schedule for the user. In addition, by synchronizing the to-be-transaction content, the transaction matching result and the actual transaction result to the respective distributed ledger of each blockchain node and the central node 52 in the blockchain system 5 , electricity transactions can be ensured The security, anonymity and non-tampering are ensured, and the actual electricity trading transaction content can be verified by the settlement electricity information output by the electricity measuring device 51 of the buyer and seller, so the purpose of the present invention can be achieved indeed.

However, the above are only examples of the present invention, and should not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the patent specification are still included in the scope of the present invention. within the scope of the invention patent.

1: Use side 2: Power cord set 3: Power supply unit group 4: Electrical device group 5: Blockchain system 51: Electric energy measuring device 511: Communication module 512: Electricity measurement module 513:Key certificate management module 514: Encryption and decryption module 515: Blockchain Management Module 516: Power Analysis and Prediction Module 517: Weather Information Capture Module 518: Energy Management Module 519: IoT Device Management Module 52: Central Node 53: Trading Platform 100: First Communication Network 101: Second Communication Network 201~208: Steps 241~242: Substeps 301~308: Steps 401~407: Steps 501~504: Steps 601~613: Steps 701~704: Steps

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a block diagram illustrating an energy management and trading system including an embodiment of an electrical energy measuring device of the present invention; 2 is a block diagram illustrating the detailed components of an embodiment of an electrical energy measuring device of the present invention; 3 is a flow chart illustrating a procedure for obtaining parameters of a power supply prediction model of an energy management and trading method; FIG. 4 is a flowchart illustrating how each target power measuring device verifies a power supply information; FIG. 5 is a flow chart illustrating a procedure for obtaining parameters of an electricity consumption prediction model of the energy management and trading method; FIG. 6 is a flowchart illustrating a recommended procedure of the energy management and trading method; FIG. 7 is a flow chart illustrating a process of buying and selling electric energy of the energy management and trading method; 8A-8B cooperate with a transaction verification process illustrating the energy management and transaction method; and FIG. 9 is a flow chart illustrating a load control procedure of the energy management and transaction method.

51: Electric energy measuring device

511: Communication module

512: Electricity measurement module

513:Key certificate management module

514: Encryption and decryption module

515: Blockchain Management Module

516: Power Analysis and Prediction Module

517: Weather Information Capture Module

518: Energy Management Module

519: IoT Device Management Module

Claims (12)

An electric energy measuring device installed on a power line group and connected to a plurality of other electric energy measuring devices respectively installed in a plurality of other power line groups through a first communication network, the power line group and the other power line groups respectively Set in multiple power consumption and power supply environments, the power measurement device and these other power measurement devices together form a plurality of blockchain nodes in a blockchain system, and the power measurement device includes: a communication module connected to the first communication network; an electric energy measuring module, electrically connected to the power line group and used for sensing the input and output conditions of the electric power of the power line group to obtain a corresponding electric energy information; a key certificate management module, storing a private key, a pair of unique identification codes of the electric energy measuring device, and a member list including the respective identification codes of the other electric energy measuring devices; an encryption/decryption module, electrically connected to the electric energy measurement module and the key certificate management module, and used for encrypting the electric energy information by using the private key; and a block chain management module, electrically connected to the communication module, the encryption and decryption module and the key certificate management module, and stores a distributed ledger for managing the distributed ledger; Wherein, when the electric energy measurement module obtains the electric energy information, the electric energy measurement module transmits the electric energy information to the encryption/decryption module, and the encryption/decryption module encrypts the electric energy information by using the private key and transmits the electric energy information to the encryption/decryption module. A block chain management module, the block chain management module transmits a data verification request including the encrypted electric energy information and the identification code of the electric energy measuring device to the said communication module through the first communication network At least one target power measuring device among other power measuring devices, so that the at least one target power measuring device verifies the power information, when the power information is successfully verified by the at least one target power measuring device, the area The blockchain management module writes the energy information to the distributed ledger. The electric energy measuring device as claimed in claim 1, each other electric energy measuring device stores a plurality of public keys corresponding to private keys of blockchain nodes other than itself, and one includes a blockchain other than itself. A member list of respective identifiers of nodes, wherein, when the identifier of the power measuring device in the data verification request exists in the member list of each target power measuring device, and the encrypted power information can be The power information is successfully verified by the at least one target power measurement device when successfully decrypted by the public key of the corresponding power measurement device stored by each target power measurement device. The power measuring device according to claim 1, wherein the power line group is electrically connected to a power-consuming device group including a plurality of power-consuming devices and is used to provide power to the power-consuming device group, wherein the power measuring module is The obtained power information includes at least one of a pair of power consumption information of the power input status of the corresponding power line group, and at least one of a pair of power supply power information of the power output status of the corresponding power line group. The power measurement device further includes: an electric energy analysis and prediction module, electrically connected to the electric energy measurement module, and used for analyzing the electric energy information obtained by the electric energy measurement module by using a non-intrusive load monitoring technology to obtain the corresponding electric energy consumption A power consumption information of the power consumption status of each power consumption device in the device group. The power measuring device according to claim 3, further comprising a weather information acquisition module electrically connected to the communication module and the power analysis and prediction module, the weather information acquisition module is used for obtaining weather information, Wherein, for each electric device in the electric device group corresponding to the electric energy measuring device, the electric energy analysis and prediction module is further used for a corresponding future time interval obtained by the weather information acquisition module The future weather information and the analyzed electricity consumption information of the electric device in a previous time interval earlier than the future time interval, using an electricity consumption prediction model for predicting the electricity consumption status of a to-be-predicted electric device Obtaining predicted power consumption information indicating the power consumption status of the power consumption device in the future time interval. According to the electric energy measuring device of claim 4, the blockchain system further includes a central node, and each blockchain node in the blockchain system and the central node store a corresponding distributed ledger, Wherein, the power analysis and prediction module is also electrically connected to the encryption and decryption module. When the power analysis and prediction module obtains the power consumption information of each corresponding electric device, the power analysis and prediction module will The power consumption information of each corresponding electrical device is sent to the encryption and decryption module, and the encryption and decryption module uses the private key to encrypt the power consumption information of each electrical device and send it to the blockchain management module. The blockchain management module transmits a data verification request including the encrypted electricity consumption information of each electric device and the identification code of the electric energy measurement device to the at least one target through the communication module through the first communication network An electric energy measuring device, so that the at least one target electric energy measuring device verifies the electric energy consumption information of each electric energy consumption device, and after the electric energy consumption information of each electric energy consumption device is successfully verified by the at least one target electric energy energy measuring device, the The blockchain management module writes the electricity consumption information of each corresponding electric device into the distributed ledger, and prompts other blockchain nodes and the central node in the blockchain system to use the electricity energy The power consumption information of each power consumption device corresponding to the measuring device is written into its corresponding distributed ledger, so as to synchronize the distributed ledger of each block chain node and the central node in the block chain system. The power measurement device of claim 5, wherein the model parameters of the power consumption prediction model of the power analysis and prediction module are obtained by the central node from the distributed ledger stored by the central node for each blockchain node After a current time interval and another previous time interval earlier than the current time interval are synchronously written, and correspond to the current power consumption information and the previous power consumption information of each of its own electrical devices, then each The current electricity consumption information and previous electricity consumption information corresponding to the blockchain node, and the current weather information in the current time interval are used as a corresponding electricity consumption training data, and according to the electricity consumption corresponding to each blockchain node The training data is obtained by training with a machine learning algorithm. The power measuring device according to claim 4, wherein the power line set is further electrically connected to a power supply device set including a plurality of power supply devices, wherein the power supply power information obtained by the power measuring module includes the corresponding power supply A power supply information of the power supply status of each power supply device in the device group. For each power supply device in the power supply device group corresponding to the power measurement device, the power analysis and prediction module is also used for according to the weather. The future weather information corresponding to the future time interval obtained by the information acquisition module, and the power supply information of the power supply device in the previous time interval obtained by the power measurement module, are used to predict a to-be-predicted power supply. The power supply prediction model of the power supply status of the device obtains a predicted power supply information indicating the power supply status of the power supply device in the future time interval. The electric energy measuring device according to claim 7, further comprising an energy management module electrically connected to the electric energy analysis and prediction module, the energy management module for The predicted power consumption information of each power consuming device and the predicted power supply information of each power supply device in the future time interval, and the future electricity price information in the future time interval, obtain an indication of the electricity selling and buying method corresponding to the future time interval Recommended information for selling and buying electric energy. The electric energy measuring device according to claim 8 is further connected to a user via the first communication network, the blockchain system further includes a central node storing a corresponding distributed ledger, and the first communication network The communication network is connected with the central node and the user, and announces a transaction platform with a number of previous transactions related to electric energy, wherein the energy management module is also connected with the communication module, and through the communication module Sending the electricity selling and buying recommendation information to the user through the first communication network, so that the user can generate and transmit a content to be traded including a electricity to be traded to the trading platform according to the recommendation information of selling and buying electricity, so that The central node obtains the pending transaction content from the trading platform, writes the pending transaction content into its corresponding distributed ledger through the smart contract in the blockchain system, and announces the pending transaction content in the transaction platform, and prompts the blockchain management module of the electric energy measurement device to write the transaction content into the corresponding distributed ledger, when the central node announces the transaction through the smart contract in the blockchain system When a matching transaction content matching the transaction content is matched among all the previously unmatched transaction contents on the platform, the central node generates a transaction matching result according to the pending transaction content and the matching transaction content, and transmits a transaction matching result through the zone. The smart contract in the blockchain system writes the transaction matching result into its corresponding distributed ledger, and announces the transaction matching result on the trading platform, and prompts the blockchain management module of the electric energy measurement device Write the transaction pairing result to its corresponding distributed ledger. The electric energy measuring device according to claim 9, wherein the electric energy measuring module is further used to obtain a pair of settlement electric energy information that should be traded and indicates the actual transaction electric energy, when the electric energy measuring module obtains During the settlement of electric energy information, the electric energy measurement module transmits the settlement electric energy information to the encryption and decryption module, and the encryption and decryption module encrypts the settlement electric energy information with the private key and transmits it to the blockchain management module, The blockchain management module transmits a data verification request including the encrypted settlement power information and the identification code of the power measurement device to the other power measurement devices through the communication module through the first communication network At least one target electric energy measuring device in the at least one target electric energy measuring device, so that the at least one target electric energy measuring device can verify the settlement electric energy information, when the settlement electric energy information is successfully verified by the at least one target electric energy measuring device, the block chain management module The group writes the settlement energy information to the distributed ledger. The electric energy measuring device according to claim 9, wherein the energy management module is further configured to obtain the electric energy according to the predicted electric energy consumption information and the electric energy selling and buying recommendation information of each electric device corresponding to the future time interval A power consumption schedule recommendation information indicating the power consumption schedule to be recommended in the future time interval of the power consumption device group corresponding to the measurement device is transmitted to the user through the communication module through the first communication network end, so that the user end generates and transmits the actual electricity demand information related to the group of electric devices corresponding to the electric energy measuring device in the future time interval to the electric energy measuring device according to the electricity consumption schedule recommendation information device. The electric energy measuring device according to claim 11 is further connected with the corresponding electric device group via a second communication network, and each electric device in the electric device group is used for continuous sensing and sending an instruction The operation information of its own operation status is sent to the connected energy measurement device, and the energy measurement device also includes an Internet of Things device management module that electrically connects the energy management module and the communication module. The communication module Also connected to the second communication network, the IoT device management module is used for receiving the operation information of each electric device of the electric device group in a current time interval and sending it to the energy management module, the energy management module The module is also connected to the power measurement module, and the energy management module is based on the actual power demand information, the transaction matching result, and each power supply device obtained by the power measurement module at a current time interval The power supply information, the power consumption information of each electric device obtained by the power analysis and prediction module in the current time interval, and the operation information of each electric device in the current time interval are generated one night after The future time interval of the current time interval is related to the control instruction of the corresponding electrical device group, so as to control the corresponding electrical device group.

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