CN111353709B - Method and system for producing electric power information product based on block chain - Google Patents
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Abstract
The invention relates to a production method of a power information product based on a block chain, which comprises the following steps: 1) Constructing a power information product production network N comprising p nodes, wherein the p nodes comprise at least one task scheduling node N and at least one task executing node m; 2) The task scheduling node n distributes the production task to be executed to each task executing node m in the form of subtasks; 3) Each task executing node m executes subtasks and sends a task executing result C and an executing result abstract D to a task scheduling node n; 4) The task scheduling node n verifies the true and false of the execution results of the corresponding subtasks, if the verification results of all the subtasks are true, the execution results are combined into a final information product, if not, the subtasks with the false verification results are recursively called in the steps 2) to 4), and compared with the prior art, the method has the advantages of low production cost, high production value and the like.
Description
Technical Field
The invention relates to the field of block chain technology and power technology, in particular to a method and a system for producing a power information product based on a block chain.
Background
With the continuous deep reform of the electric power system in China, links of power grid such as power transmission, power distribution, power selling and the like initially construct a competitive market environment by introducing external capital. Under the background, the traditional power enterprises need to create a profit mode and enrich profit means, and are prevented from being pipelined and marginalized. Power enterprises accumulate a great amount of raw data in continuous operation, and the raw data can be converted into information products with extremely high use value by utilizing advanced information communication technologies such as artificial intelligence, big data, distributed computing and the like, so as to serve the operation and decision of governments and various industries. However, considering that the power data belongs to sensitive information, the power enterprises generally construct a data barrier to the outside to prevent the original data from leaking and losing, which results in that the power data cannot play a role in the social value chain.
At present, the construction of information products based on electric power data requires resolution of the problems of the supply of data, power and energy. Specifically, in the production process of the electric power information product, massive multi-component heterogeneous data is required as input, a large number of calculation nodes are required to provide cooperative calculation service, and a large amount of electric power energy sources are required to support high-performance calculation. With the increasing quality of information products, the demand for computing, power and electricity is increasing, and this increase may be nonlinear. However, the blockchain-based distributed computing method and system provided in chinese patent application CN110471770A, CN110262845A, CN109324901A, CN108683738A, CN108696522a, etc. do not fully consider the acquisition cost and the use cost of the above resources, resulting in limited scale of the applicable problem.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a block chain-based power information product production method and system with low production cost and high production value.
The aim of the invention can be achieved by the following technical scheme:
a method of producing a blockchain-based power information product, comprising the steps of:
1) Constructing a power information product production network N comprising p nodes, wherein the p nodes comprise at least one task scheduling node N and at least one task executing node m;
2) The task scheduling node n distributes the production task to be executed to each task executing node m in the form of subtasks;
3) Each task executing node m locally executes the allocated subtasks and sends a task executing result C and an executing result abstract D to a task scheduling node n;
4) And the task scheduling node n verifies the authenticity of the execution result of the corresponding subtask according to the received task execution result C and the execution result abstract D, if the verification results of all the subtasks are true, the execution results are combined into a final information product, and if not, the subtasks with the false verification results are recursively called in the step 2) -the step 4).
The power information product production network N is a private chain or a alliance chain, each node is an enterprise or department for generating, transmitting, distributing and/or selling electricity, the task scheduling node N is a node with scheduling authority, and the task executing node m is a node participating in producing the power information product.
The step 2) specifically comprises the following steps:
21 The task scheduling node n divides a production task to be executed into k subtasks and broadcasts and publishes a first subtask set T containing k subtasks;
22 The task execution node m receives the first subtask set T, generates a second subtask set R, and broadcasts and issues an execution application of the second subtask set R;
23 The task scheduling node n receives the execution application of each task execution node m and generates a task scheduling set S through a bipartite graph maximum matching algorithm;
24 Judging whether all the subtasks in the first subtask set T have corresponding task execution nodes in the task scheduling set S, if so, the task scheduling node N issues the task scheduling set S in the power information product production network N, and if not, the production of the information product is terminated.
The step 22) specifically includes:
221 A task execution node m receives a first subtask set T;
222 The task execution node m selects all subtasks which can be locally executed from the first subtask set T according to the self-owned computing resources, data resources and power resources to form a third subtask set R';
223 And (3) calculating a second subtask set R from the third subtask set R' by solving the 0-1 knapsack problem, and broadcasting an execution application for issuing the second subtask set R.
The subtasks comprise execution content, latest delivery time and completion rewards, the 0-1 knapsack problem aims at the maximum completion rewards of the subtasks, and constraint conditions comprise time constraint and resource constraint;
the time constraint specifically comprises: the final completion time of all the subtasks in the second subtask set R is less than or equal to the latest delivery time of the corresponding subtasks;
the resource constraint specifically comprises: the computing resources, the data resources and the power resources expected to be consumed by executing the subtasks are respectively smaller than or equal to the computing resources, the data resources and the power resources owned by the task execution node.
In step 23), the bipartite graph maximum matching algorithm is a hungarian algorithm, and when a plurality of task execution nodes m apply to execute the same subtask in the process of constructing the task scheduling set S, the task scheduling node n distributes the subtasks according to rewards accumulated by the task execution nodes m.
In the step 3), when each task execution node m executes a corresponding task, if the task execution node m is an enterprise or department generating electricity, the self-generating drive self-owned computing platform is used for processing own data; if the task execution node m is an enterprise or department for power transmission and/or power distribution, processing own data by using an own energy storage drive own computing platform; if the task execution node m is an electricity selling enterprise or department, the virtual power plant controlled by the task execution node m is used for driving the self-owned computing platform to process the self-owned data.
The execution result abstract D is obtained through RSA algorithm calculation, the task execution result C is verified through RSA algorithm, the execution result abstract D is published in the electric power information product production network N in a broadcasting mode, and the task execution result C is sent to the task scheduling node N in a unicast mode.
A system for implementing the blockchain-based power information product production method, which comprises a power information product production network N, wherein the power information product production network N comprises one or more task scheduling nodes N and one or more task execution nodes m which are interconnected, the task scheduling nodes N have scheduling rights, and the task execution nodes m participate in producing power information products.
The task scheduling node n includes:
a first information sending module: the method comprises the steps of issuing a first subtask set T and a task scheduling set S;
a first information receiving module: the task execution node m is used for receiving a task execution application, a task execution result C and an execution result abstract D issued by the task execution node m;
information decryption module: the method is used for verifying the execution result of the subtasks;
the task allocation module: for generating a first set of subtasks T and a set of task schedules S;
and (3) a product manufacturing module: for merging the execution results of all sub-tasks to generate a final information product;
and a weight calculation module: the priority for the task execution node m to execute the same subtask is calculated;
the task execution node m includes the following:
and a second information sending module: the method is used for issuing a task execution application, a task execution result C and an execution result abstract D;
and a second information receiving module: the task scheduling method comprises the steps of acquiring a first subtask set T and a task scheduling set S issued by a task scheduling node n;
an information encryption module: the execution result abstract D is used for calculating the sub task;
task application module: the method comprises the steps of generating a task execution application;
task execution unit: for executing the assigned subtasks.
Compared with the prior art, the invention has the following advantages:
1) The production cost is low: in the method and the system, each node in the blockchain uses own power to drive the own computing platform to process own power data, so that the cost is relatively low;
2) The production value is high: the method and the system can provide double benefits for the uplink enterprises: on one hand, enterprises can obtain rewards for producing information products, on the other hand, power generation, power transmission and electricity selling enterprises can obtain benefits by providing self-power generation, energy storage and virtual power plant power supply, and meanwhile, new energy power generation enterprises and conventional power generation enterprises in a 'weak start-up' state for a long time can realize local consumption of residual electricity;
3) The data security is high: each task execution node only uses local original data in the process of producing information products, and only links the processed desensitized data, so that the leakage or loss of the original data can be effectively avoided;
4) The feasibility is good: the potential profit provided by the invention can drive the power enterprise to be up-linked, and has popularization and use values in reality.
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FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Examples
As shown in fig. 1, the present invention provides a method for producing a blockchain-based power information product, comprising:
step S101: the block chain-based point-to-point distributed power information product production network N is constructed, in the embodiment, a alliance chain network is formed, the network comprises p nodes, each node is an enterprise or department for generating, transmitting, distributing and/or selling electricity, in the embodiment, a task scheduling node N1 is set, other nodes except the task scheduling node N1 are all task execution nodes m, wherein the task scheduling node N1 has scheduling authority, and the task execution nodes m participate in producing the power information product.
Step S102: the task scheduling node N1 divides the production task to be executed into k subtasks, and distributes a first subtask set T= { T1, T2, T3, …, tk } in a broadcasting manner in the electric power information product production network N, wherein each broadcasted subtask at least comprises information such as execution content, latest delivery time, completion rewards and the like of the subtask.
Step S103: each task execution node m in the electric power information product production network N firstly receives the first subtask set T, selects all locally executable subtasks from the first subtask set T according to own computing resources, data resources and electric power resources to form a third subtask set R ', then selects 0, 1 or more subtasks from the third subtask set R' to form a second subtask set R by solving a 0-1 knapsack problem, wherein the objective of the 0-1 knapsack problem is to predict that the accumulated obtained completion rewards are the most, the constraint condition is that the data resources, the electric power resources, the computing resources and the latest completion time which are predicted to be consumed do not exceed the latest delivery time which is required by the node respectively, and finally issues the execution application of the second subtask set R in a broadcasting mode in the electric power information product production network N.
Step S104: the task scheduling node n1 firstly receives subtask execution applications sent by each task execution node m, and then adopts a Hungary algorithm to construct a task scheduling set S between all subtasks to be executed and all task execution nodes m. In the process of constructing the task scheduling set S, when a plurality of task execution nodes apply to execute the same subtask, the execution permission of the subtask is granted to the task execution node with the most accumulated rewards up to the present. Meanwhile, in the task scheduling set S, if each subtask to be executed of the first subtask set T has a task execution node to apply for execution, the task scheduling set S is issued in the electric power information product production network N in a broadcasting mode; otherwise, the production of the information product is terminated.
Step S105: each task execution node m in the power information product production network N firstly receives the task scheduling set S, then locally executes the assigned subtasks to obtain a task execution result C, generates an execution result abstract D of the corresponding subtasks by using the RSA algorithm, finally sends the task execution result C to the task scheduling node N1 in a unicast mode, and issues the execution result abstract D in the power information product production network N in a broadcast mode. In the execution process of the subtasks, new energy or conventional energy power generation enterprises use self-generating driven self-owned computing platforms to execute the subtasks; the power transmission and distribution enterprises use own energy storage to drive own computing platforms to execute subtasks; the electricity selling enterprise uses the virtual power plant power supply controlled by the electricity selling enterprise to drive the self-owned computing platform to execute the subtasks.
Step S106: the task scheduling node n1 firstly receives the task execution results C and the execution result abstracts D sent by all the task execution nodes m, and then verifies the correctness of the corresponding task execution results C by using an RSA algorithm according to the execution result abstracts D; if all the task execution results C are verified to be true, merging the verified task execution results C into a final information product, otherwise recursively calling the subtasks with the task execution results C verified to be false in step S102 to step S106.
The invention also provides a system for producing the electric power information product based on the block chain, which realizes the method, and the system comprises an electric power information product production network N consisting of p nodes. The network is a alliance chain network, each node is an enterprise or department for generating, transmitting, distributing and/or selling electricity, one node is set as a task scheduling node n1, and other nodes except the task scheduling node n1 are set as task execution nodes m.
The task scheduling node n1 includes the following modules:
a first information sending module: the method comprises the steps of issuing subtask information and subtask allocation information, wherein the subtask information comprises the following steps: the execution content, the latest delivery time and the completion rewards of the subtasks, and the subtask allocation information comprises: each sub-task is assigned to which task execution nodes m to execute.
A first information receiving module: the method is used for receiving subtask execution application information, subtask execution results and abstracts thereof issued by a task execution node, wherein the subtask execution application information comprises: node number, subtask number of node application execution.
Information decryption module: and verifying the execution result of the subtasks by adopting a digital signature algorithm (RSA algorithm).
The task allocation module: the subtasks are distributed according to the subtask execution application information, and when a plurality of task execution nodes strive for executing the same subtask, the execution permission of the subtask is granted to the task execution node with the most accumulated rewards up to the present.
And (3) a product manufacturing module: and merging the execution results of the subtasks to generate a final information product.
And a weight calculation module: and calculating the accumulated obtained rewards of each task execution node till the present.
The task execution node m comprises the following modules:
and a second information sending module: issuing a subtask execution application, a subtask execution result and a summary thereof.
And a second information receiving module: and receiving subtask information and subtask allocation information issued by the task scheduling node.
An information encryption module: a digital signature algorithm (RSA algorithm) is used to calculate a digest of the result of the execution of the subtask.
Task application module: the 0-1 knapsack problem is solved to divide the production task, the problem solving target is that the accumulated obtained rewards are the most, and the constraint of the problem is that the data resource, the power resource, the computing resource and the latest finishing time which are expected to be consumed respectively do not exceed the own data resource, the power resource, the computing resource and the latest delivery time required by the node.
The task execution module: the assigned subtasks are performed using the owned data resources, computing resources, and power resources.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A method of producing a blockchain-based power information product, comprising the steps of:
1) Constructing a power information product production network N comprising p nodes, wherein the p nodes comprise at least one task scheduling node N and at least one task executing node m;
2) The task scheduling node n distributes the production task to be executed to each task executing node m in the form of subtasks;
3) Each task executing node m locally executes the allocated subtasks and sends a task executing result C and an executing result abstract D to a task scheduling node n;
4) And (3) the task scheduling node n verifies the authenticity of the execution result of the corresponding subtask according to the received task execution result C and the execution result abstract D, if the verification results of all the subtasks are true, the execution results are combined into a final information product, and if not, the subtasks with the false verification results are recursively called in the step (2) -the step (4).
2. The method for producing a blockchain-based power information product according to claim 1, wherein the power information product production network N is a private chain or a alliance chain, each node is an enterprise or a department for generating, transmitting, distributing and/or selling electricity, the task scheduling node N is a node having scheduling authority, and the task executing node m is a node participating in producing the power information product.
3. The method for producing a blockchain-based power information product according to claim 1, wherein the step 2) specifically includes:
21 The task scheduling node n divides a production task to be executed into a plurality of subtasks and broadcasts and publishes a first subtask set T containing all the subtasks;
22 The task execution node m receives the first subtask set T, generates a second subtask set R, and broadcasts and issues an execution application of the second subtask set R;
23 The task scheduling node n receives the execution application of each task execution node m and generates a task scheduling set S through a bipartite graph maximum matching algorithm;
24 Judging whether all the subtasks in the first subtask set T have corresponding task execution nodes in the task scheduling set S, if so, the task scheduling node N issues the task scheduling set S in the power information product production network N, and if not, the production of the information product is terminated.
4. A method of producing a blockchain-based power information product according to claim 3, wherein said step 22) specifically comprises:
221 A task execution node m receives a first subtask set T;
222 The task execution node m selects all subtasks which can be locally executed from the first subtask set T according to the self-owned computing resources, data resources and power resources to form a third subtask set R';
223 And (3) calculating a second subtask set R from the third subtask set R' by solving the 0-1 knapsack problem, and broadcasting an execution application for issuing the second subtask set R.
5. The method for producing a blockchain-based power information product according to claim 4, wherein the subtasks include execution content, latest delivery time and completion rewards, and the 0-1 knapsack problem targets the maximum completion rewards of the subtasks, and the constraint conditions include time constraint and resource constraint;
the time constraint specifically comprises: the final completion time of all the subtasks in the second subtask set R is less than or equal to the latest delivery time of the corresponding subtasks;
the resource constraint specifically comprises: the computing resources, the data resources and the power resources expected to be consumed by executing the subtasks are respectively smaller than or equal to the computing resources, the data resources and the power resources owned by the task execution node.
6. The method for producing a blockchain-based power information product according to claim 3, wherein in step 23), the bipartite graph maximum matching algorithm is a hungarian algorithm, and when there are a plurality of task execution nodes m applying to execute the same subtask in the process of constructing the task scheduling set S, the task scheduling node n performs subtask allocation according to rewards accumulated by each task execution node m.
7. The method for producing a blockchain-based power information product according to claim 2, wherein in the step 3), when each task execution node m executes a corresponding task, if the task execution node m is an enterprise or department generating power, the self-generating drive self-owned computing platform is used to process owned data; if the task execution node m is an enterprise or department for power transmission and/or power distribution, processing own data by using an own energy storage drive own computing platform; if the task execution node m is an electricity selling enterprise or department, the virtual power plant controlled by the task execution node m is used for driving the self-owned computing platform to process the self-owned data.
8. The method for producing a blockchain-based electric power information product according to claim 1, wherein the execution result abstract D is calculated by an RSA algorithm, the task execution result C is verified by the RSA algorithm, the execution result abstract D is issued in the electric power information product production network N by a broadcasting method, and the task execution result C is sent to the task scheduling node N by a unicast method.
9. A system for implementing a blockchain-based power information product production method as in any of claims 1-8, wherein the system comprises a power information product production network N, the power information product production network N comprising one or more task scheduling nodes N and one or more task execution nodes m that are interconnected, the task scheduling nodes N having scheduling rights, the task execution nodes m participating in the production of power information products.
10. The system for producing a blockchain-based power information product of claim 9, wherein the task scheduling node n includes:
a first information sending module: the method comprises the steps of issuing a first subtask set T and a task scheduling set S;
a first information receiving module: the task execution node m is used for receiving a task execution application, a task execution result C and an execution result abstract D issued by the task execution node m;
information decryption module: the method is used for verifying the execution result of the subtasks;
the task allocation module: for generating a first set of subtasks T and a set of task schedules S;
and (3) a product manufacturing module: for merging the execution results of all sub-tasks to generate a final information product;
and a weight calculation module: the priority for the task execution node m to execute the same subtask is calculated;
the task execution node m includes the following:
and a second information sending module: the method is used for issuing a task execution application, a task execution result C and an execution result abstract D;
and a second information receiving module: the task scheduling method comprises the steps of acquiring a first subtask set T and a task scheduling set S issued by a task scheduling node n;
an information encryption module: the execution result abstract D is used for calculating the sub task;
task application module: the method comprises the steps of generating a task execution application;
task execution unit: for executing the assigned subtasks.
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