TWI804783B - 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 invention relates to an electric energy measuring device, in particular to an intelligent electric energy measuring device capable of reporting information through the network.

Smart meter (Smart meter) is a new type of digital watt-hour meter. It will accurately mark the electricity consumption and report information through the network, which can save manpower by eliminating manual meter reading and can be read remotely by the power company. Power consumption data, understand the power consumption data of each time period, and use it to promote time-based electricity prices to suppress peak power consumption and achieve grid balance.

In addition, in recent years, due to the rapid development of renewable energy, smart home and electric vehicle technologies, governments of various countries have actively encouraged the production of green electricity and promoted green electricity Towards a free market.

However, whether it is for electricity consumption analysis or to ensure the correctness of green electricity transactions, how to properly record the energy information measured by smart meters, expand the functions that smart meters can provide, and implement edge computing technology to provide More complete power management technology and improving the real-time computing and information security problems caused by relying on cloud servers for computing in the past are really problems that need to be solved urgently.

Therefore, the purpose of the present invention is to provide an electric energy measurement 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 to a plurality of other electric energy measuring devices respectively installed in a plurality of other power line groups via a first communication network, and the electric power line group is connected to these other power line groups. The power line groups are respectively set in multiple power consumption and power supply environments. The electric energy measuring device and the other electric energy measuring devices together constitute a plurality of blockchain nodes in a blockchain system. The electric energy measuring 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 electric energy measurement module is used for sensing the input and output conditions of the electric power of the electric power line group, so as to obtain a corresponding electric energy information.

The key certificate management module stores a private key, a pair of unique identification codes of the electric energy measuring devices, and a member list including the respective identification codes of the other electric energy measuring devices.

The encryption and 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 blockchain 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 measuring module obtains the electric energy information, the electric energy measuring module sends the electric energy information to the encryption and decryption module, and the encryption and decryption module uses the private key to encrypt the electric energy information and sends it to the The block chain management module, the block chain management module sends a data verification request including the encrypted electric energy information and the identification code of the electric energy measuring device to the first communication network through the communication module at least one target electric energy measuring device among other electric energy measuring 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 area The block chain management module writes the electric energy information into the distributed ledger.

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

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

Referring to Fig. 1, an energy management and trading system includes multiple user terminals 1 held by multiple users, multiple power line groups 2 set in the electricity consumption and power supply environment where these users are located, and multiple A power supply device group 3 respectively corresponding to the users and electrically connected to the power line groups 2, a plurality of electric device groups 4 respectively corresponding to the users and electrically connected to the power line groups 2, and via a first The communication network 100 or the second communication network 101 is connected to the user terminals 1 , and the block chain system 5 connected to the power supply device groups 3 and the electrical device groups 4 via the second communication network 101 . In this embodiment, the first communication network 100 can be a wireless network, a wired network or a 4G mobile network, etc., and the second communication network 101 can be a wireless network or a low-power Bluetooth wireless network. communications etc.

The implementation form of each user terminal 1 can be a personal computer, a notebook computer, a tablet computer, or a smart phone, etc. Each power supply device group 3 can be installed in the environment where the corresponding user is located, and for example includes at least one of a solar power generation device and a wind power generation device. Each electric device group 4 is used for continuously sensing an operation information indicating its own operation status, and each electric device group 4 can be installed in the environment where the corresponding user is located, and for example includes 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 plugging in an electrical appliance. .

The block chain system 5 includes a plurality of embodiments of the electric energy measuring device 51 of the present invention, a central node 52 connected to the electric energy measuring devices 51 via the first communication network 100 , and the first communication network 100 A trading platform 53 connected with the electric energy measuring devices 51 , the central node 52 and the usage terminals 1 .

The electric energy measuring devices 51 are respectively corresponding to the users and are all connected to each other via the first communication network 100, 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 through the first communication network 100 or the second communication network 101, and is connected to the corresponding terminal 1 held by the corresponding user through the second communication network 101. The power consumption where the user is located is connected with the electrical device group 4 of the power supply environment.

Referring to FIG. 2, for each electric energy measuring device 51, the electric energy measuring device 51 includes a communication module 511 connected to the first communication network 100 and the second communication network 101, an electrical connection corresponding to An electric energy measuring 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 electrically connected between the electric energy measuring module 512 and the key certificate management module 513 Module 514, a block chain management module 515 electrically connected to the communication module 511, the encryption and decryption module 514 and the key credential management module 513, and a block chain management module 515 electrically connected to the power measurement module 512 and the encryption The power analysis and prediction module 516 of the decryption module 514, the meteorological information acquisition module 517 electrically connected to the communication module 511 and the power analysis and prediction module 516, the communication module 511 electrically connected to the power Energy measurement module 512, the key certificate management module 513, the encryption and decryption module 514, the block chain management module 515, the power analysis and prediction module 516 and the weather information acquisition module 517 A management module 518, and an IoT device management module 519 electrically connected to 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 measurement module 512 is used to sense the input and output conditions of the power line group 2 to obtain a corresponding power information. The power information obtained by the power measurement module 512 includes a corresponding power line group 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 of the power output status of the corresponding 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 the solar power generation device and the wind power generation device at the same time, 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 generation device and the power supply information of the wind power generation device. The key certificate management module 513 stores a private key of itself, a plurality of public keys corresponding to private keys of blockchain nodes other than itself, a pair of unique identification codes corresponding to the electric energy measuring device 51, and a The list of members including the respective identification codes of these other electric energy measuring devices 51, wherein the private key, the public keys, the unique identification code and the member stored in the key certificate management module 513 The list can be updated (for example, the central node 52 can update the private key, the public keys, the unique identification code and the member list stored in the key certificate management module 513, the key certificate management module 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 by using the private key and the public keys. The blockchain management module 515 stores a distributed ledger and is used to manage the distributed ledger. The weather information retrieval module 517 is used to obtain weather information. The power analysis and prediction module 516 is used to analyze the power consumption information obtained by the power measurement module 512 by using a non-intrusive load monitoring technology, so as to obtain the 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 measurement device 51, the power analysis and prediction The module 516 is also used 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 to obtain an electric energy buying and selling recommendation information corresponding to the future time interval, indicating the way of electric energy buying and selling, and the electric energy consumption device group 4 corresponding to the electric energy measuring device 51 in the future time interval. 1. Indicates the power schedule recommendation information of the power schedule to be recommended. The IoT device management module 519 is used to receive the operation information of each electric device in the electric 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 block chain management module 515, the power analysis module The prediction module 516 and the weather information acquisition 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 unique identification code corresponding to the central node 52, and a 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 block chain system 5 for the transaction of electric energy. In this embodiment, the implementation form of the central node 52 can be a personal computer, a notebook computer, a server computer, or a cloud server; however, in other embodiments, the central node 52 can also be composed of 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 smart homes. Each power supply device group 3, power consumption device group 4 and power measurement device 51 are installed in the corresponding user's home. The invented electric energy measuring device 51 can analyze and predict the household electricity consumption for the user, and at the same time recommend the best electricity trading method, the time to participate in the demand response, the price and the electric quantity, and further plan the corresponding The automatic scheduling of loads (that is, 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 electricity producer and seller, earn extra profits by participating in electricity trading and demand response. For power suppliers and power production and sales users, more operations can be carried out through the two-way power trading provided by electric vehicles. In this way, it will not only attract more users to enter 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 can also be used in emerging virtual power plants to provide small-scale to large-scale regional power trading, matching and dispatching. For example, electricity production, sales, and consumption users in the community can conduct green energy trading through the recommendation of the electric energy measurement device 51 provided by the present invention. In addition to achieving the goal of regional green energy sharing and reducing power transmission losses, they can also participate in demand. Respond to the volume, earn extra profits, and at the same time maintain the stability of the power 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 reduce power generation and operating costs through the energy management and trading system, 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, and reduce Air pollution of the earth's environment can kill several birds with one stroke.

The following will use an energy management and transaction method to illustrate the operation details of each component in the energy management and transaction system. The energy management and transaction method includes a power supply forecasting model parameter acquisition procedure and a power consumption forecasting model parameter acquisition procedure. , a recommendation program, a buying and selling electric energy program, a buying and selling verification program, and a load control program.

Referring to Fig. 1, Fig. 2 and Fig. 3, the power supply forecasting model parameter acquisition program of the energy management and trading method has explained how to obtain a model parameter of a power supply forecasting model for predicting the power supply status of a power supply device to be predicted, and includes the following step. Since each electric energy measuring device 51 writes the power supply information of each corresponding power supply device to the distributed ledger, the operation is similar. In the following description, only a single electric energy measuring device 51 and a single power supply device are used. Be explained.

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

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

In step 203, the block chain management module 515 of the electric energy measuring device 51 transmits an identification code including encrypted power supply information and the electric energy measuring device 51 via the communication module 511 through the first communication network 100 The data verification request is sent to at least one target electric energy measuring device 51 among the other electric energy 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, The 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 all exist in the member list of the at least one target electric energy measuring device 51, the flow proceeds to step 242; when it is determined that the identification codes of the electric energy measuring device 51 do not exist in When any target power 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 power measuring device 51, and the process ends.

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

In step 205, the block chain management module 515 of the electric energy measuring device 51 writes the power supply information of the corresponding power supply device into the distributed ledger, and prompts other block chains in the block chain system 5 to Both the node and the central node 52 write the power supply information of the power supply device corresponding to the electric energy measuring device 51 into the distributed ledger corresponding to itself, so as to synchronize each block chain node and The distributed ledger of the central node 52 .

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

In step 207, the central node 52 obtains a current time interval (such as today) and a previous time interval earlier than the current time interval (such as today) of each block chain node from its stored distributed ledger. The previous week), and corresponding to the current power supply information of its own power supply device (for example, the power supply information of the whole day today) and the previous power supply information (for example, the power supply information of the whole week before today), and will The current power supply information and previous power supply information corresponding to each block chain node, and the current weather information serve as a corresponding power supply training data. Wherein, the current power supply information in each power supply training data is used as the correct result (ie, 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 block chain 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 respectively obtain the solar power generation device 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 can train a system 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 status of the wind power generation device are trained, and the model parameters of a power supply prediction model for predicting the power supply status of the wind power generation device are trained.

Referring to Fig. 1, Fig. 2 and Fig. 5, the procedure for obtaining the parameters of the power consumption prediction model of the energy management and trading method illustrates how to obtain the model parameters of a power consumption prediction 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 each corresponding power consumption device to the distributed ledger is similar, in the following description, only a single power measuring device 51 is used for illustration .

In step 301, when the power measurement module 512 of the power measurement device 51 obtains the power consumption information of the corresponding power consumption device group 4, the power measurement module 512 sends the corresponding power consumption device The power consumption information of group 4 is sent to the power analysis and prediction module 516 of the power measuring 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 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 measuring device 51 The encryption and decryption module 514.

In step 303 , the encryption and decryption module 514 of the electric energy measurement device 51 encrypts the electricity consumption information of each electric consumption device with its own private key and sends it to the block chain management module 515 of the electric energy measurement device 51 .

In step 304, the block chain management module 515 of the electric energy measuring device 51 transmits an encrypted power consumption information of each electric device and the electric energy via the communication module 511 through the first communication network 100 The data verification request of the identification code of the measurement device 51 is sent to the at least one target electric energy measurement device 51 . Wherein, the at least one target electric energy measuring device 51 may be the same as the at least one target electric energy measuring device 51 in step 203 or at least one target electric energy measuring device 51 randomly selected from other electric energy 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. When 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 all 51 are successfully verified, the process ends. The information to be written into the distributed ledger must pass the verification of the at least one target power measuring device 51 before it can be written, because the verification process of the power consumption information of each power consumption device is different from that of the power supply device The verification process of the power supply information is similar, so it is not repeated here.

In step 306, the block chain 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 block chain system 5 to Other block chain nodes and the central node 52 all write the power consumption information of each electric device corresponding to the electric energy measuring device 51 into their corresponding distributed ledgers to synchronize the block chain system 5 Each block chain node and the distributed ledger of the central node 52.

In step 307, the central node 52 obtains the synchronously written information of each blockchain node in the current time interval (such as today) and the previous time interval (such as a week before today) from its stored distributed ledger. input, and corresponds to the current electricity consumption information (for example, the electricity consumption information for the whole day today) and the previous electricity consumption information (for example, the electricity consumption information for the whole week before today) of each of its own electric devices, and The current power consumption information and previous power consumption information corresponding to each block chain node, as well as the current weather information, are used as a corresponding power consumption training data. Wherein, the current power consumption information in each power consumption training data is used as the correct result (ie, label) of the training data.

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

It is worth noting that, in this embodiment, when the electric device group 4 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, the electric energy analysis and prediction model of the electric energy measuring device 51 Group 516 analyzes the power consumption information of each power consumption device itself 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 According to the power consumption training data related to the energy storage device, the electrical appliance, the charging pile and the smart socket, the model parameters of a general power consumption prediction model are trained, and the general power 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 program of the energy management and transaction method illustrates how to obtain the recommended information for buying and selling electric energy indicating the way of electric energy buying and selling and the electricity consumption indicating the power consumption schedule to be recommended Schedule recommendation information and include the following steps. Since the operation of each power measuring device 51 to obtain the buying and selling power recommendation information and the power consumption scheduling recommendation information is similar, in the following description, only a single power measuring device 51 is used for illustration. 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 the power consumption information of each power consumption device 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 description, only a single power supply device and a single power consumption device are used for illustration.

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 through 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 power analysis and prediction module 516 of the power measurement device 51 and perform edge calculations.

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 forecast platform through the communication module 511, and sends it to the electric energy measuring device. The power analysis and prediction module 516 of the device 51 . In other implementation manners, the future weather information can also be obtained from a home weather system installed in the electricity consumption and power supply environment where the electric energy measuring device 51 is located through the communication module 511 through the weather information acquisition module 517, for example. station to obtain.

In step 403, the power analysis and prediction module 516 of the power measurement device 51 obtains the weather information corresponding to the future time interval (such as tomorrow) obtained by the weather information acquisition module 517, and the power The power supply information (for example, the power supply information for the whole week before tomorrow) of the power supply device obtained by the measurement module 512 in another previous time interval (for example, one week before tomorrow) earlier than the future time interval (for example, 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 power measuring device 51 includes the solar power generating device and the wind power generating device, so the power measuring device 51 will obtain the power supply of the solar power generating device in the future time interval The predicted power supply information of the status, and the predicted power supply information of the power supply status of the wind power generation device in the future time interval.

In step 404, the power analysis and prediction module 516 of the power measuring device 51 obtains the future weather information corresponding to the future time interval obtained by the weather information acquisition module 517, and analyzes the power consumption device The power consumption information of another previous time interval (such as the power consumption information of the whole week before tomorrow), using the power consumption prediction model to obtain the power consumption status indicating the power consumption 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 electric device group 4 corresponding to the electric energy measuring device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, so the electric energy measuring device 51 will obtain the energy storage device The predicted power consumption information of the electricity usage status in the future time interval, the predicted electricity usage information of the electricity usage status of the electrical appliance in the future time interval, the predicted power usage information of the electricity usage status of the charging pile in the future time interval, Predicted power consumption information related to the power consumption status of the smart socket in the future time interval.

In step 405 , the energy management module 518 of the electric energy measuring device 51 obtains the future electricity price information of the future time interval from the trading platform 53 through the communication module 511 . In other implementations, the future electricity price information can also be obtained from the online mains trading platform 53 by 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 forecasted electricity consumption information and future electricity price information are carried out, such as, the conventional optimal planning procedure is obtained to obtain the recommended information of selling and buying electric energy corresponding to the future time interval, and through the first communication network through the communication module 511 100 or the second communication network 101 to the user terminal 1 corresponding to the electric energy measuring device 51 .

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

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

In step 501, the user terminal 1 generates and transmits a message containing a waiting The transaction electric energy and the content to be traded of the first user's identification information (for example, the first user A will sell 20 kilowatt-hours of electricity at 9:00 tomorrow) are sent to the trading platform 53 . Wherein, the content to be traded is generated when the first user receives the recommended information for buying and selling electric energy through the terminal 1 , evaluates his actual buying and selling needs, and then performs an input operation on the terminal 1 .

In step 502, when the central node 52 receives the content to be traded generated by the user terminal 1 from the trading platform 53, the central node 52 uses the smart contract in the blockchain system 5 to transmit the content to be traded Write it into the distributed account book corresponding to itself, and announce the content to be traded on the trading platform 53, and prompt each block chain node in the block chain system 5 to write the content to be traded into the corresponding The distributed ledger of each blockchain node in the blockchain system 5 and the distributed ledger of the central node 52 are synchronized.

In step 503, the central node 52 judges through the smart contract in the blockchain system 5 whether there is a content to be traded announced in step 502 among all previously unmatched transaction content announced on the trading platform 53 The matching transaction content of the transaction. When the central node 52 determines that the matching transaction content does not exist, the process returns to step 503; when the central node 52 determines that the matching transaction content exists, wherein the matching transaction content includes another electric energy to be When the second user identification information of a second user (for example, the second user B wants to buy 20 kilowatt-hours of electricity at 9:00 tomorrow), the process proceeds to step 504 .

In step 504, the central node 52 generates a transaction matching result according to the transaction content announced in step 502 and the matching transaction content, and writes the transaction matching result into its corresponding in the distributed ledger, and announce the transaction matching result on the trading platform 53, and prompt each blockchain node in the blockchain system 5 to write the transaction matching result into its corresponding distributed ledger Book, to synchronize each blockchain node in the blockchain system 5 and the distributed ledger of 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 matching is completed, the energy measuring device 51 corresponding to the first user and the second user will conduct electricity transaction according to the transaction matching result. In the following description, the transaction generated in step 504 pairing results to illustrate.

In step 601, the energy measurement module 512 of the energy measurement device 51 corresponding to the first user obtains a pair of transaction content and indicates an actual transaction energy settlement energy information (for example, the first user The electric energy measuring device 51 corresponding to A detects the electric energy information of its output of 20 kilowatt-hours at 9 o'clock tomorrow), and sends the settlement electric energy information to the encryption and decryption module 514 of the electric energy measuring device 51.

In step 602, the encryption and 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 sends it to the block chain management module 515 of the electric energy measuring device 51 .

In step 603, the block chain 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 through the communication module 511 The data verification request of the identification code of the measurement device 51 is sent to the at least one target electric energy measurement device 51 . Wherein, the at least one target electric energy measuring device 51 may be the same as the at least one target electric energy measuring device 51 in step 203 or at least one target electric energy measuring device 51 randomly selected from other electric energy measuring devices 51 .

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

In step 605, the block chain management module 515 corresponding to the first user's electric energy measurement device 51 writes the settlement electric energy information into the distributed ledger, and prompts other areas in the block chain system 5 to Both the block chain node and the central node 52 write the settlement electric energy information corresponding to the electric energy measuring device 51 into their corresponding distributed ledgers, 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 transaction content from its distributed ledger, and generates a first actual transaction content corresponding to the transaction content according to the settlement power information.

In step 607, the energy measurement module 512 of the energy measurement device 51 corresponding to the second user obtains another settlement energy information corresponding to the paired transaction content and indicating another actual transaction energy (for example, the second The electric energy measurement device 51 corresponding to user B detects the electric energy information of the 20 kwh of the user B's input at 9 o'clock tomorrow), and sends the other settlement electric energy information to the encryption and decryption module 514 of the electric energy measurement device 51 .

In step 608, the encryption and 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 sends it to the blockchain management module of the electric energy measuring device 51 Group 515.

In step 609, the block chain management module 515 corresponding to the second user's electric energy measuring device 51 transmits another encrypted settlement electric energy 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 electric energy measurement device 51 verifies the other settlement electric energy information. When the other billing power information is successfully verified by the at least one target power measuring device 51 , the process proceeds to step 611 ; when the other billing power information is not successfully verified by the at least one target power measuring device 51 , The process ends.

In step 611, the block chain management module 515 corresponding to the second user's electric energy measurement device 51 writes the other settlement electric energy information into the distributed ledger, and prompts the block chain system 5 The other block chain nodes and the central node 52 both write another settlement electric energy information corresponding to the electric energy measuring device 51 into their corresponding distributed ledgers, so as to synchronize each area in the block chain system 5 The distributed ledger of block chain nodes and the central node 52.

In step 612, the central node 52 obtains another settlement energy information corresponding to the matching transaction content from its stored distributed ledger, and generates a pair of second settlement information corresponding to the matching transaction content according to the other settlement energy 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 in the distributed ledger, and announce the actual transaction result on the trading platform 53, and prompt each blockchain node in the blockchain system 5 to write the actual transaction result into its corresponding distributed ledger Book. In this way, no matter whether the first user who sells electric energy or the second user who buys electric energy can use the verification of the central node 52 to determine whether the party who sells electric energy and the party who buys electric energy have indeed sold their pending electricity. The electric energy of the transaction content and the electric energy of buying its matching transaction content.

It is worth mentioning that, in other embodiments, the content to be traded may also include a type of electric energy to be traded (for example, the electric energy to be sold is generated by a solar power generation device), similarly, the paired content may also include Another type of electric energy to be traded (for example, the electric energy to be bought is generated by a solar power generation device). Therefore, in step 601, the settlement power information obtained by the power measurement module 512 corresponding to the power measurement device 51 of the first user will also indicate which power supply device the output power is produced by (for example, 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 trading method illustrates how the electric energy measurement device 51 automatically controls the electric device group 4 , 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 illustration.

In step 701, the user terminal 1 generates and transmits information related to the power consumption device group 4 corresponding to the power measurement device 51 in the power consumption schedule recommendation information received from the power measurement device 51. The actual power demand information of one of the future time intervals is sent to the power measuring device 51 . Wherein, the actual electricity demand information is input to the user terminal 1 after evaluating the actual electricity demand information when the user who owns the terminal 1 receives the electricity schedule recommendation information through the terminal 1 generated by the operation. In this embodiment, the electrical device group 4 corresponding to the electric energy measuring device 51 includes the energy storage device, the electrical appliance, the charging pile and the smart socket, so the actual power demand information includes the energy storage device Energy storage electricity demand data in one of the future time intervals, electricity demand data of the electric appliance in one of the future time intervals, electricity demand data of the charging pile in one of the future time intervals, and the smart socket Outlet electricity demand data in one of the future time intervals.

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 operating status to the connected electrical energy measuring device 51 . In this embodiment, the electrical device group 4 corresponding to the electric 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 state of the electrical appliance, for example, if the electrical appliance is an air conditioner, the operating state 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 electrical appliance plugged into the smart socket, such as the on-off status of the plug-in appliance .

In step 703, when the Internet of Things equipment management module 519 of the electric energy measuring device 51 receives a current status of each electric device of the electric device group 4 via the second communication network 101 through the communication module 511 When receiving the operation information of the time interval, 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 power measuring device 51 is based on the actual power demand information, the transaction matching result, and each 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 measuring device 51, and the power consumption information of each power consumption device For the operation information in the current time interval, use the linear programming method to generate a control command related to the electric device group 4 corresponding to the electric energy measuring device 51 in a future time interval later than the current time interval, so as to control the 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, 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 electric energy measuring device 51 of the present invention predicts the predicted power supply information and the predicted power consumption information through the electric energy analysis and prediction module 516, so that the energy management module 518 can Information, forecasted electricity consumption information and future electricity price information generate the recommended information for buying and selling electric energy and the recommended information for scheduling electricity consumption, so as to recommend the best way of buying and selling electric energy and scheduling electricity consumption for users. In addition, by synchronizing the content to be traded, the transaction matching result and the actual transaction result to the respective distributed ledgers of each blockchain node and central node 52 in the blockchain system 5, the energy transaction can be guaranteed The security, anonymity and immutability of tampering, and the settlement power information output by the power measuring device 51 of both buyers and sellers are used to verify the actual power trading content, so the purpose of the present invention can indeed be achieved.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: Use end 2: Powerline group 3: Power supply unit group 4: Electric device group 5: Blockchain system 51: Electric energy measuring device 511: Communication module 512: Electric energy 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 acquisition module 518:Energy management module 519: IoT device management module 52: Central node 53:Trading platform 100: The first communication network 101: Second communication network 201~208: Steps 241~242: sub-steps 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 implementation manner with reference to the drawings, wherein: FIG. 1 is a block diagram illustrating an energy management and trading system including an embodiment of the electric energy measuring device of the present invention; Fig. 2 is a block diagram illustrating the detailed components of an embodiment of the electric energy measuring device of the present invention; Fig. 3 is a flow chart illustrating a power supply forecasting model parameter acquisition procedure 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 flowchart illustrating a procedure for obtaining parameters of an electricity consumption forecasting model of the energy management and trading method; Figure 6 is a flowchart illustrating a proposed procedure for the energy management and trading method; Fig. 7 is a flowchart illustrating a procedure of buying and selling electric energy of the energy management and trading method; 8A~8B cooperate to illustrate a transaction verification procedure of the energy management and transaction method; and FIG. 9 is a flowchart illustrating a load control procedure of the energy management and trading method.

51: Electric energy measuring device

511: Communication module

512: Electric energy 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 acquisition module

518:Energy management module

519: IoT device management module

Claims (11)

An electric energy measuring device installed on a power line group and connected to a plurality of other electric energy measuring devices respectively installed on a plurality of other power line groups through a first communication network, the power line group and the other power line groups are respectively Set in multiple power consumption and power supply environments, the electric energy measuring device and the other electric energy measuring devices together constitute a plurality of blockchain nodes in a block chain system, and each other electric energy measuring device stores A plurality of public keys corresponding to the private keys of blockchain nodes other than itself, and a member list containing the respective identification codes of blockchain nodes other than itself, the electric energy measuring device includes: a communication module , connected to the first communication network; an electric energy measurement module, electrically connected to the power line group and used to sense the input and output conditions of the electric power of the power line group, so as to obtain a corresponding electric energy information; a key certificate management module A group, storing a private key, a pair of unique identification codes of the electric energy measuring devices, and a member list containing the respective identification codes of the other electric energy measuring devices; an encryption and decryption module, electrically connected The electric energy measurement module and the key certificate management module are used to encrypt the electric energy information by using the private key; and a block chain management module is electrically connected to the communication module, the encryption and decryption module and the gold The key certificate management module stores a distributed ledger and is used to manage the distributed ledger; wherein, when the electric energy measurement module obtains the electric energy information, the electric energy measurement module sends the electric energy information to The encryption and decryption module, the encryption and decryption module The group encrypts the electric energy information with the private key and sends it to the block chain management module, and the block chain management module transmits the encrypted electric energy information and the electric energy information through the communication module through the first communication network. The data verification request of the identification code of the measuring device is sent to at least one target electric energy measuring device among the other electric energy measuring devices, so that the at least one target electric energy measuring device verifies the electric energy information, when the electric energy information is obtained by the After at least one target power measuring device is successfully verified, the block chain management module writes the power information into the distributed ledger, wherein, when the identification code of the power measuring device in the data verification request exists in each In the member list of a target electric energy measuring device, and the encrypted electric energy information can be successfully decrypted by the public key corresponding to the electric energy measuring device stored in each target electric energy measuring device, the electric energy information is obtained by the at least A target electric energy measuring device was successfully verified. According to the electric energy measuring device described in claim 1, the power line group is electrically connected to an electric device group comprising a plurality of electric devices and is used to provide power to the electric device group, wherein the electric energy measuring module is The obtained power information includes at least one of power consumption information corresponding to the power input status of the power line group, and at least one of supply power information corresponding to the power output status of the power line group. The power measurement device also 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, so as to obtain the corresponding electric energy consumption A piece of power consumption information of the power consumption status of each power consumption device in the device group. The electric energy measurement device as described in claim 2, further includes a weather information acquisition module electrically connected to the communication module and the electric energy analysis and prediction module, the weather The image information acquisition module is used to obtain 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 also used to obtain weather information based on the weather information The future weather information corresponding to a future time interval obtained by the extraction module, and the analyzed power consumption information of the electric device in a previous time interval earlier than the future time interval are used for forecasting and for forecasting The power consumption prediction model of the power consumption status of the power consumption device obtains predicted power consumption information indicating the power consumption status of the power consumption device in the future time interval. As for the electric energy measuring device described in claim 3, the block chain system also includes a central node, and each block chain node and the central node in the block chain system all 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 power consumption device, the power analysis and prediction module will The corresponding power consumption information of each power consumption 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 power consumption device and sends it to the block chain management module. The block chain management module transmits a data verification request including the encrypted power consumption information of each power consumption device and the identification code of the power measuring device to the at least one target through the communication module through the first communication network The power measuring device, so that the at least one target power measuring device verifies the power consumption information of each power consumption device, and when the power consumption information of each power consumption device is successfully verified by the at least one target power measurement device, the The blockchain management module writes the electricity consumption information of each corresponding electrical device into the distributed ledger, and prompts other blockchain nodes and the central node in the blockchain system to share the electricity energy measuring device The electricity consumption information of each corresponding electrical device is written into its corresponding distributed ledger to synchronize each blockchain node in the blockchain system with the distributed ledger of the central node. The electric energy measurement device as described in claim 4, wherein, the model parameters of the electricity consumption prediction model of the electric energy analysis and prediction module are obtained by the central node from the distributed ledger stored by each block chain node After synchronously writing in a current time interval and another previous time interval earlier than the current time interval, and corresponding to the current power consumption information and the previous power consumption information of each electric device of its own, then each The current power consumption information and previous power consumption information corresponding to the blockchain node, and the current weather information in the current time interval are used as a corresponding power consumption training data, and according to the power consumption corresponding to each blockchain node The training data is obtained by using a machine learning algorithm for training. According to the power measuring device described in claim 3, the power line group is also electrically connected to a power supply device group including a plurality of power supply devices, wherein the power supply power information obtained by the power measurement 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 measuring device, the power analysis and prediction module is also used to 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 power supply to be predicted 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 as described in claim 6, further comprising an energy management module electrically connected to the electric energy analysis and prediction module, the energy management module is used to The predicted power consumption information of each power consumption device and the predicted power supply information of each power supply device in the future time interval, as well as the future electricity price information in the future time interval, obtain an indication of the electricity buying and selling method corresponding to the future time interval Recommended information on selling and buying electricity. The electric energy measurement device as described in claim 7 is also connected to a user terminal via the first communication network, and the blockchain system also includes a central node storing a corresponding distributed ledger, and via the first A trading platform where the communication network is connected to the central node and the user end and announces a number of previously pending transactions related to electric energy, wherein the energy management module is also connected to the communication module, and through the communication module Sending the electricity buying and selling recommendation information to the user terminal through the first communication network, so that the user terminal generates and transmits a content to be traded including an electricity energy to be traded to the trading platform according to the electricity buying and selling recommendation information, so that The central node obtains the content to be traded from the trading platform, writes the content to be traded into its corresponding distributed ledger through the smart contract in the blockchain system, and announces the content to be traded on the transaction platform, and prompt the block chain management module of the electric energy measuring device to write the content to be traded into the corresponding distributed ledger, when the central node self-announces in the transaction When a paired transaction content that matches the pending transaction content is found out of all the previously unmatched transactions on the platform, the central node generates a transaction pair based on the pending transaction content and the paired transaction content As a result, the transaction matching result is written into its corresponding distributed ledger through the smart contract in the blockchain system, and the transaction matching result is announced on the trading platform, and the area of the electric energy measuring device is promoted The block chain management module writes the transaction matching result into its corresponding distributed ledger. The electric energy measuring device as described in claim 8, wherein the electric energy measuring module is also 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 When the energy information is settled, the energy measurement module transmits the energy information for settlement to the encryption and decryption module, and the encryption and decryption module uses the private key to encrypt the energy information for settlement and transmits it to the blockchain management module, The block chain 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 verifies 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 into the distributed ledger. The electric energy measurement device as described in claim 8, wherein the energy management module is further used to obtain the electric energy according to the predicted electric power consumption information and the electric energy recommendation information for buying and selling of each electric device corresponding to the future time interval The power consumption schedule recommendation information of the power consumption device group corresponding to the measurement device indicates the power consumption schedule to be recommended in the future time interval, and is sent to the user through the communication module through the first communication network terminal, so that the user terminal generates and transmits the actual power consumption demand of the power consumption device group corresponding to the power measuring device in one of the future time intervals according to the power consumption scheduling recommendation information Request information to the electric energy measuring device. The electric energy measuring device as described in claim 10 is also connected to the corresponding electric device group through a second communication network, and each electric device of the electric device group is used for continuous sensing and sending an indication Send the operation information of its own operation status to the connected electric energy measuring device, and the electric energy measuring device also includes an IoT device management module electrically connecting the energy management module and the communication module, the communication module Also connected to the second communication network, the IoT equipment management module is used to receive the operation information of each electric device in the electric device group at a current time interval and send it to the energy management module, the energy management 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 the current time interval of each power supply device obtained by the power measurement module. The power supply information, the power consumption information of each power consumption device obtained by the power analysis and forecasting module in the current time interval, and the operation information of each power consumption device in the current time interval are generated within one night The future time interval of the current time interval is related to the control instruction related to the corresponding electric device group, so as to control the corresponding electric device group.

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