Block chain-based electricity transaction system and electricity transaction method

Abstract

The invention provides a power transaction system and method based on a block chain, and relates to the field of financial transactions, and the system comprises a display box, the top of the display box is provided with a heat dissipation window, the front surface of the display box is provided with a plurality of exposed windows at equal intervals, and the inner walls of the two sides of the display box are provided with chain wheel devices. Display assemblies are installed on the outer surface of a chain of the chain wheel device at equal intervals, each display assembly comprises a display frame, transparent plates are arranged on the front face and the back face of each display frame, the display assemblies can be arranged in a trading hall, and customers can select according to information of all power generation enterprises in the display frames and tradable electric quantity. The identification module and the docking device are docked through the button of the display assembly and then identification is completed, a corresponding scheme is made according to the selection of a customer to complete power transaction, tedious steps are saved, meanwhile, the multiple display assemblies for displaying information do not consume electricity when not selected, and compared with common large-screen broadcasting, power resources are saved.

Description

Technical Field

[0001] The present invention relates to the field of financial transaction technology, and specifically to a blockchain-based electricity trading system and electricity trading method. Background Art

[0002] Electricity, the power source for all industries, is the fundamental driving force for production and life. The power industry is currently undergoing rapid transformation. The emergence of renewable energy and research into distributed energy are accelerating changes in energy storage methods, energy utilization efficiency, and energy digitization. The emergence of blockchain technology offers new avenues for these potential applications. Blockchain technology and smart contracts can effectively improve transaction efficiency, reduce transaction costs, and eliminate pain points and friction across the entire value chain. Traditional electricity trading structures are inefficient and complex, with transactions from power plants to the State Grid Corporation, then to power retailers, and finally to charging service companies and users. Compared to other traditional electricity trading models, new energy sources offer users more affordable clean energy options. With the continued expansion of the new energy vehicle market, charging station services are becoming another major demand in the future transportation sector, driven by a growing user base. Charging station electricity is traded through commodity orders for different energy types and prices, allowing different parties to buy and sell on trading platforms.

[0003] In existing technologies, electricity trading is generally completed on online apps, which are greatly affected by network fluctuations and are difficult to operate for some people who are not good at using the Internet. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a blockchain-based electricity trading system and electricity trading method to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The device is set up in the trading hall. Customers can make choices based on the information of each power generation enterprise and the tradable electricity volume in the display frame. Then, the identification module is docked with the docking device through the button of the display component to complete the identification. According to the customer's choice, a corresponding plan is formulated to complete the electricity transaction. The steps are tedious and complicated. At the same time, multiple display components used to display information do not consume power when not selected. Compared with the common large-screen broadcast, it saves power resources.

[0005] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a blockchain-based electricity trading system, comprising a display box, a heat dissipation window is provided on the top of the display box, and a plurality of exposure windows are equidistantly provided on the front of the display box, a sprocket device is installed on the inner wall of both sides of the display box, and a display assembly is equidistantly installed on the chain outer surface of the sprocket device, the display assembly comprises a display frame, a transparent plate is provided on the front and back of the display frame, and two storage cavities are provided inside the display frame, and fixing blocks are provided at both ends of the display frame, and the fixing blocks are fixed to the sprocket device. On the chain, an outlet is opened at the position corresponding to the two storage cavities at the bottom of the display frame, and a baffle is slidingly covered on the surface of the display frame outlet, and a driving assembly is provided inside the display box between the two sets of sprocket devices, and the driving assembly includes a fixed plate, which is fixedly connected to the inner walls on both sides of the display box, and a first electric push rod is fixed to the bottom of the fixed plate, and a collection box is installed at the extended end of the first electric push rod, and a collection box is provided at the bottom of the collection box, and a system box is installed on the inner wall of the back of the display box, and a storage module, an information processing module and a transaction module are provided inside the system box.

[0006] Furthermore, a first box door is installed on one side of the display box at a position corresponding to the collection box, a slide rail is slidably inserted into the bottom of the collection box, and the slide rail is fixed inside the display box, an addition port is opened on the surface of the other side of the display box corresponding to the other side of the sprocket device, and a second box door is sealed on the addition port, an identification screen is installed on the top surface of the display box, and an operation button is installed on the display box on the side of the identification screen.

[0007] Furthermore, the display assembly also includes a turntable, the fixed block is rotatably installed on one side of the display frame, and the fixed block has a built-in motor for driving the turntable to rotate, the display frame is fixedly connected to the center of the turntable, the storage cavity of the display frame is hollowed out at both ends, and the turntable is provided with a notch corresponding to the hollow position, and the fixed block is provided with an insertion opening at the hollow position at the front end of the display frame.

[0008] Furthermore, an information board is placed inside the display frame, a slot is provided inside the information board, and a rod is slidably inserted inside the slot, an identification module is fixed at one end of the rod, a docking device is fixed at the position of the uppermost identification module on the inner wall of the display box, and a socket is provided at a position in the same straight line as the docking device and the socket, and the identification module can be inserted into the socket.

[0009] Furthermore, a push rod is slidably inserted into the surface of the other side of the display box that is in the same straight line as the docking device, and the push rod slides into the interior of the information board and is in contact with the insertion rod, and a button is fixed to the outer end of the push rod.

[0010] Furthermore, a first spring is sleeved on the outer end of the push rod, and both ends of the first spring are fixedly connected to the button and the outer wall of the display box. A second spring is sleeved on the inside of the insertion rod, and both ends of the second spring are fixedly connected to the inner wall of the slot and the insertion rod respectively.

[0011] Furthermore, the driving assembly also includes a connecting frame, and the connecting frame is rotatably mounted on both sides of the collection box through bearings, and the back of the connecting frame is fixedly connected to the extended end of the first electric push rod.

[0012] Furthermore, a gear is installed on the outer side of the connecting frame that is rotatably connected to the collection box, and a tooth plate is fixed on the inner wall of the display box corresponding to the moving path of the gear. When the collection box moves backward, the gear is engaged with the tooth plate.

[0013] Furthermore, a screw is rotatably installed on the top of the fixed plate through a bearing seat, and a driving motor is fixed to one end of the fixed plate corresponding to the screw, the output end of the driving motor is fixedly connected to the screw, a screw block is threadedly sleeved on the surface of the screw, a second electric push rod is fixed on both sides of the screw block, and an insert is fixed to the extended end of the second electric push rod, side plates are fixed on both sides of the baffle, and the insert is vertically inserted into the side plates.

[0014] A blockchain-based electricity trading method, comprising the following steps: (1) A display box is set up in the trading hall. Staff will enter the information of power generation companies that can trade electricity into the system and fill it out on the information board installed inside the display box for loop playback; (2) Customers can choose to complete electricity transactions on the online app according to their needs, or they can select power generation companies through the display box and complete the identification of the selected companies inside the display box; (3) Obtaining power information, generating a seller transaction document based on the power information, and sending the seller transaction document and seller information to the blockchain for identity verification; (4) Obtaining user information, generating a buyer transaction receipt based on the user information, and sending the seller transaction receipt and user information to the blockchain for identity verification; (5) receiving the random number generated by the buyer and the verification code generated by the seller based on the random number, decoding the verification code to obtain the decoded random number contained in the verification code and comparing it with the random number for verification; if the verification is successful, merging the seller's transaction document and the buyer's transaction document to generate an electricity transaction document.

[0015] Beneficial effects of the present invention: The present invention can manually take out the collection box through the first box door to recycle the traded information boards, and can continuously add new information boards from the back of the sprocket device through the adding port and the second box door for customers to choose.

[0016] The present invention stores the identification module and the insertion rod in the slot. As the sprocket device moves along the inside of the display frame, they are displayed alternately through the exposure window. The sprocket device can be controlled to rotate by a motor to cyclically display the display components on the chain. The appropriate information board can also be selected through manual adjustment, with the top position as the selection position. After selection, the button is pressed manually to insert the top rod into the inside of the display frame and squeeze the insertion rod. The insertion rod drives the identification module to pass through the insertion port on the other side and insert into the docking device. The docking device identifies the enterprise information in the identification module, and collects statistics on various data and information of the power generation enterprise stored in the system box to facilitate the subsequent transaction process.

[0017] In the present invention, after the information board in front of the uppermost display frame has been selected for transaction, the first electric push rod drives the connecting frame and the collection box to move toward the bottom of the display frame, and at the same time, the driving motor drives the screw to rotate, and the screw block cooperates with the screw thread to drive the vertical plate to move to the side plate at the rear end of the display frame, and the second electric push rod drives the vertical plate to be inserted into the inside of the side plate, and then through the reverse rotation of the screw, the baffle is pulled backward to open the bottom outlet of the front end of the display frame, and the internal information board falls into the collection box. Then the collection box is moved backward by the first electric push rod. When it moves to the top of the collection box, the gear will engage with the tooth plate, driving the collection box to flip downward, and the information board that has been traded is put into the collection box, and the staff will regularly take out the information that has been traded.

[0018] The present invention can be set up in a trading hall, and customers can make choices based on the information of each power generation enterprise and the tradable electricity volume in the display frame. The identification module is then docked with the docking device through the button of the display component to complete the identification. A corresponding plan is formulated according to the customer's choice to complete the electricity transaction, saving tedious steps. At the same time, multiple display components for displaying information do not consume electricity when not selected, saving electricity resources compared to common large-screen broadcasts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a flowchart of a blockchain-based electricity trading method of the present invention; Figure 2 This is a schematic diagram of the overall structure of a blockchain-based power trading system of the present invention; Figure 3 This is a schematic diagram of the internal structure of a display box of a blockchain-based power trading system of the present invention; Figure 4 This is a schematic diagram of the external structure of a display box of a blockchain-based power trading system according to the present invention; Figure 5 This is a schematic diagram of the installation of a collection box for a blockchain-based electricity trading system according to the present invention; Figure 6This is a schematic diagram of the external structure of a display component of a blockchain-based power trading system of the present invention; Figure 7 This is a schematic diagram of the corresponding docking device and fixed block of a blockchain-based power trading system of the present invention; Figure 8 This is a schematic diagram of the installation of a collection frame for a drive component of a blockchain-based power trading system of the present invention; Figure 9 This is a schematic diagram of the connection between the drive component and the baffle of a blockchain-based power trading system of the present invention; Figure 10 This is a schematic diagram of the internal structure of an information board of a blockchain-based power trading system of the present invention; Figure 11 This is a schematic diagram of the interior of an information board of a blockchain-based power trading system facing one end of the docking device of the present invention.

[0020] In the figure: 1. Display box; 11. Heat dissipation window; 12. Identification screen; 13. Operation button; 14. Exposure window; 15. First box door; 16. System box; 17. Adding port; 18. Second box door; 2. Display assembly; 21. Button; 22. First spring; 23. Display frame; 24. Turntable; 25. Fixing block; 26. Insertion port; 27. Docking device; 28. Socket; 29. ​​Ejector rod; 210. Baffle; 211. Side Plate; 212, information plate; 213, slot; 214, plug rod; 215, second spring; 216, identification module; 3, sprocket device; 4, collection box; 41, slide rail; 5, drive assembly; 51, fixed plate; 52, first electric push rod; 53, connecting frame; 54, collection box; 55, gear; 56, tooth plate; 57, screw; 58, drive motor; 59, screw block; 510, second electric push rod; 511, plug plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 11 , the present invention provides a technical solution: A blockchain-based electricity trading method, comprising the following steps: (1) A display box is set up in the trading hall. Staff will enter the information of power generation companies that can trade electricity into the system and fill it out on the information board installed inside the display box for loop playback; (2) Customers can choose to complete electricity transactions on the online app according to their needs, or they can select power generation companies through the display box and complete the identification of the selected companies inside the display box; (3) Obtaining power information, generating a seller transaction document based on the power information, and sending the seller transaction document and seller information to the blockchain for identity verification; (4) Obtaining user information, generating a buyer transaction receipt based on the user information, and sending the seller transaction receipt and user information to the blockchain for identity verification; (5) receiving the random number generated by the buyer and the verification code generated by the seller based on the random number, decoding the verification code to obtain the decoded random number contained in the verification code and comparing it with the random number for verification; if the verification is successful, merging the seller's transaction document and the buyer's transaction document to generate an electricity transaction document.

[0023] A blockchain-based electricity trading system includes a display box 1, a heat dissipation window 11 is provided on the top of the display box 1, and a plurality of exposure windows 14 are equidistantly provided on the front of the display box 1, a sprocket device 3 is installed on the inner walls of both sides of the display box 1, and a display component 2 is equidistantly installed on the outer surface of the chain of the sprocket device 3, and the display component 2 includes a display frame 23, and the front and back of the display frame 23 are provided with transparent panels, and the interior of the display frame 23 is provided with two storage cavities, and fixed blocks 25 are provided at both ends of the display frame 23, and the fixed blocks 25 are fixed on the chain of the sprocket device 3, an outlet is provided at the bottom of the display frame 23 corresponding to the two storage cavities, and a baffle 210 is slidably covered on the surface of the outlet of the display frame 23, and a drive component 5 is provided between the two sets of sprocket devices 3 inside the display box 1, and the drive component 5 includes a fixed plate 51, and the fixed plate 51 is aligned with the display box 1, and a first electric push rod 52 is fixed to the bottom of the fixed plate 51. A collection box 54 is installed on the extended end of the first electric push rod 52. A collection box 4 is provided at the bottom of the collection box 54. A system box 16 is installed on the inner wall of the back of the display box 1, and a storage module, an information processing module and a transaction module are provided inside the system box 16. This device is combined with network power trading and can be selected by customers. They can trade power online or complete the transaction after they make their own choice through this device. When using the device, the display assembly 2 is installed on both sides of the chain of the sprocket device 3, and information boards 212 of different power generation companies are added to the front and rear storage cavities of the display frame 23. Customers can read the information board 212 according to the hollow window, select the information board 212 that needs to be traded, complete the identification at the top, and send the information board 212 that has been traded out through the driving assembly 5.

[0024] In this embodiment, a first box door 15 is installed on one side of the display box 1 at a position corresponding to the collection box 4, a slide rail 41 is slidably inserted into the bottom of the collection box 4, and the slide rail 41 is fixed inside the display box 1, and an addition port 17 is provided on the surface of the other side of the display box 1 corresponding to the other side of the sprocket device 3, and a second box door 18 is sealed on the addition port 17, an identification screen 12 is installed on the top surface of the display box 1, and an operation button 13 is installed on the side of the identification screen 12 of the display box 1. The collection box 4 can be manually taken out through the first box door 15 to recycle the traded information board 212, and new information boards 212 can be continuously added from the back of the sprocket device 3 for customers to choose through the addition port 17 and the second box door 18. The identification screen 12 and the operation button 13 are both existing interactive recognition technologies, which can identify customers and enter information.

[0025] In this embodiment, the display assembly 2 also includes a turntable 24, the fixed block 25 is rotatably mounted on one side of the display frame 23, and the fixed block 25 has a built-in motor for driving the turntable 24 to rotate, the display frame 23 is fixedly connected to the center of the turntable 24, the storage cavity of the display frame 23 is hollowed out at both ends, and the turntable 24 is provided with a notch corresponding to the hollowed-out position, the fixed block 25 is provided with an insertion opening 26 corresponding to the hollowed-out position of the front end of the display frame 23, an information board 212 is placed inside the display frame 23, a slot 213 is provided inside the information board 212, and a rod 214 is slidably inserted inside the slot 213, and an identification module 216 is fixed to one end of the rod 214. A docking device 27 is fixed to the position of the uppermost identification module 216 on the inner wall of the box 1, and a socket 28 is provided at a position in the same straight line as the docking device 27 and the insertion port 26, and the identification module 216 can be inserted into the socket 28. A push rod 29 is slidably inserted on the surface of the other side of the display box 1 that is in the same straight line as the docking device 27, and the push rod 29 slides into the interior of the information board 212 and is in contact with the insertion rod 214. A button 21 is fixed to the outer end of the push rod 29, and a first spring 22 is sleeved on the outer end of the push rod 29, and both ends of the first spring 22 are fixedly connected to the button 21 and the outer wall of the display box 1. A second spring 215 is sleeved on the inside of the insertion rod 214, and both ends of the second spring 215 are respectively The inner wall of the slot 213 is fixedly connected to the insertion rod 214. In the initial state, the identification module 216 and the insertion rod 214 are stored in the slot 213. As the sprocket device 3 moves along the inside of the display frame 23, they are alternately displayed through the exposure window 14. The sprocket device 3 can be controlled to rotate by a motor to cyclically display the display components 2 on the chain. The appropriate information board 212 can also be selected by manual adjustment, with the top position as the selection position. After selection, the button 21 is manually pressed to insert the top rod 29 into the interior of the display frame 23 and squeeze the insertion rod 214. The insertion rod 214 drives the identification module 216 to pass through the insertion port 26 on the other side and insert it into the docking device 27. The docking device 27 aligns the enterprises in the identification module 216. The information is identified, and the various data and information of the power generation enterprises stored in the system box 16 are counted to facilitate the subsequent transaction process. The docking identification of the identification module 216 and the docking device 27 can be in the form of a common USB interface docking. The identification module 216 can be regarded as a downward mobile hard disk, which stores the identification code of the power generation enterprise internally. After being inserted into the socket 28 of the docking device 27, the corresponding power generation enterprise is automatically selected and the corresponding power transaction is completed. The display frame 23 takes the front information board 212 as the first selection. After the front information board 212 is selected, the turntable 24 is driven to rotate by the motor built into the fixed block 25, and the information boards 212 in front and behind the display frame 23 are turned and replaced.

[0026] In this embodiment, the driving assembly 5 also includes a connecting frame 53, and the connecting frames 53 are rotatably installed on both sides of the collection box 54 through bearings, and the back of the connecting frame 53 is fixedly connected to the extended end of the first electric push rod 52, and a gear 55 is installed on the outer side of the connecting frame 53 and the collection box 54 rotatably connected, and a toothed plate 56 is fixed on the inner wall of the display box 1 corresponding to the moving path of the gear 55. When the collection box 54 moves backward, the gear 55 is meshed with the toothed plate 56, and a screw 57 is rotatably installed on the top of the fixed plate 51 through a bearing seat, and a driving motor 58 is fixed to one end of the fixed plate 51 corresponding to the screw 57, and the output end of the driving motor 58 is fixedly connected to the screw 57, and a screw block 59 is threadedly sleeved on the surface of the screw 57, and a second electric push rod 510 is fixed on both sides of the screw block 59, and an insert plate 511 is fixed to the extended end of the second electric push rod 510, and side plates 211 are fixed on both sides of the baffle 210, and the insert plate 511 is vertically connected to the screw 57. After the information board 212 in front of the uppermost display frame 23 has been selected for transaction, the first electric push rod 52 drives the connecting frame 53 and the collection box 54 to move toward the bottom of the display frame 23. At the same time, the driving motor 58 drives the screw 57 to rotate. The screw block 59 and the screw 57 are threadedly engaged to drive the vertical plate to move to the side plate 211 at the rear end of the display frame 23. The second electric push rod 510 drives the vertical plate to be inserted into the inside of the side plate 211. Then, through the reverse rotation of the screw 57, the baffle 210 is pulled backward to open the bottom outlet of the front end of the display frame 23. The internal information board 212 falls into the collection box 54. Then, the collection box 54 is moved backward by the first electric push rod 52. When it moves to the top of the collection box 4, the gear 55 engages with the tooth plate 56, driving the collection box 54 to flip downward, and the traded information board 212 is put into the collection box 4. The staff regularly takes out the traded information board 212.

[0027] When the device is in use, the information board 212 that has been traded can be manually taken out of the collection box 4 through the first box door 15 for recycling. New information boards 212 can be continuously added from the back of the sprocket device 3 through the adding port 17 and the second box door 18 for customers to choose. The identification screen 12 and the operation button 13 are both existing interactive identification technologies, which can identify customers and enter information. Display components 2 are installed on both sides of the chain of the sprocket device 3, and information boards 212 of different power generation companies are added to the front and rear storage cavities of the display frame 23. Customers can read the information board 212 according to the hollow window, and the identification module 216 and the insertion rod 214 are stored in the slot 213. As the sprocket device 3 moves along the inside of the display frame 23, the transaction Alternatively, the display may be displayed through the exposure window 14, and the sprocket device 3 may be controlled to rotate by a motor to cyclically display the display components 2 on the chain. Alternatively, a suitable information board 212 may be selected by manual adjustment, with the top position being the selection position. After selection, the button 21 is manually pressed to insert the top rod 29 into the interior of the display frame 23 and squeeze the insertion rod 214. The insertion rod 214 drives the identification module 216 to pass through the insertion port 26 on the other side and insert into the docking device 27. The docking device 27 identifies the enterprise information in the identification module 216, and collects statistics on the various data and information of the power generation enterprise stored in the system box 16 to facilitate the subsequent transaction process. The docking identification between the identification module 216 and the docking device 27 can be It is a common USB interface docking form. The identification module 216 can be regarded as a downward mobile hard disk. The identification code of the power generation enterprise is stored inside. After being inserted into the socket 28 of the docking device 27, the corresponding power generation enterprise is automatically selected and the corresponding power transaction is completed. The display frame 23 takes the front information board 212 as the first selection. After the front information board 212 is selected, the motor built into the fixed block 25 drives the turntable 24 to rotate, and the information boards 212 in front and behind the display frame 23 are swapped. After the information board 212 in front of the top display frame 23 has been selected for transaction, the first electric push rod 52 drives the connecting frame 53 and the collection box 54 to move toward the bottom of the display frame 23, and at the same time drives the motor 58 drives the screw 57 to rotate, and the screw block 59 cooperates with the screw 57 thread to drive the vertical plate to move to the side plate 211 at the rear end of the display frame 23. The second electric push rod 510 drives the vertical plate to be inserted into the side plate 211, and then through the reverse rotation of the screw 57, the baffle 210 is pulled backward to open the bottom outlet of the front end of the display frame 23, and the internal information board 212 falls into the collection box 54. Then the collection box 54 is moved backward by the first electric push rod 52. When it moves to the top of the collection box 4, the gear 55 will engage with the tooth plate 56, driving the collection box 54 to flip downward, and the information board 212 that has been traded is placed into the collection box 4. The staff will regularly take out the information board 212 that has been traded.

[0028] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A blockchain-based electricity trading system, comprising a display box (1), characterized in that: The top of the display box (1) is provided with a heat dissipation window (11), and the front of the display box (1) is provided with a plurality of exposure windows (14) at equal intervals. Sprocket devices (3) are installed on the inner walls of both sides of the display box (1), and display components (2) are installed at equal intervals on the outer surface of the chain of the sprocket device (3). The display component (2) includes a display frame (23), and the front and back of the display frame (23) are provided with transparent plates. Two storage cavities are provided inside the display frame (23), and fixing blocks (25) are provided at both ends of the display frame (23), and the fixing blocks (25) are fixed on the chain of the sprocket device (3). The bottom of the display frame (23) is provided with outlets at positions corresponding to the two storage cavities. , and a baffle (210) is slidably covered on the surface of the outlet of the display frame (23), a driving assembly (5) is provided between the two sets of sprocket devices (3) inside the display box (1), and the driving assembly (5) includes a fixed plate (51), the fixed plate (51) is fixedly connected to the inner walls of both sides of the display box (1), and a first electric push rod (52) is fixed to the bottom of the fixed plate (51), and a collection box (54) is installed at the extended end of the first electric push rod (52), and a collection box (4) is provided at the bottom of the collection box (54), and a system box (16) is installed on the inner wall of the back of the display box (1), and a storage module, an information processing module and a transaction module are provided inside the system box (16).

2. The blockchain-based power trading system according to claim 1, characterized in that: A first box door (15) is installed on one side of the display box (1) at a position corresponding to the collection box (4); a slide rail (41) is slidably inserted at the bottom of the collection box (4), and the slide rail (41) is fixed inside the display box (1); an addition port (17) is opened on the surface of the other side of the display box (1) corresponding to the other side of the sprocket device (3), and a second box door (18) is sealed on the addition port (17); an identification screen (12) is installed on the top surface of the display box (1), and an operation button (13) is installed on the display box (1) on one side of the identification screen (12).

3. The blockchain-based power trading system according to claim 1, characterized in that: The display assembly (2) further comprises a turntable (24), the fixed block (25) being rotatably mounted on one side of the display frame (23), and the fixed block (25) being equipped with a motor for driving the turntable (24) to rotate, the display frame (23) being fixedly connected to the center of the turntable (24), the storage cavity of the display frame (23) being hollowed out at both ends, and a notch being provided at a position corresponding to the hollowing out of the turntable (24), and an insertion opening (26) being provided at a position corresponding to the hollowing out of the front end of the display frame (23) on the fixed block (25).

4. The blockchain-based power trading system according to claim 3, characterized in that: An information board (212) is placed inside the display frame (23), a slot (213) is provided inside the information board (212), and a rod (214) is slidably inserted inside the slot (213), an identification module (216) is fixed to one end of the rod (214), a docking device (27) is fixed at a position corresponding to the topmost identification module (216) on the inner wall of the display box (1), and a socket (28) is provided at a position in the same straight line as the docking device (27) and the insertion opening (26), and the identification module (216) can be inserted into the socket (28).

5. The blockchain-based power trading system according to claim 4, characterized in that: A push rod (29) is slidably inserted into the surface of the other side of the display box (1) that is in the same straight line as the docking device (27), and the push rod (29) slides into the interior of the information board (212) and is in contact with the insertion rod (214) by compression, and a button (21) is fixed to the outer end of the push rod (29).

6. The blockchain-based power trading system according to claim 5, characterized in that: The outer end of the push rod (29) is sleeved with a first spring (22), and the two ends of the first spring (22) are fixedly connected to the button (21) and the outer wall of the display box (1). The interior of the insertion rod (214) is sleeved with a second spring (215), and the two ends of the second spring (215) are respectively fixedly connected to the inner wall of the slot (213) and the insertion rod (214).

7. The blockchain-based power trading system according to claim 1, characterized in that: The driving assembly (5) further comprises a connecting frame (53), the connecting frame (53) being rotatably mounted on both sides of the collecting box (54) via bearings, and the back side of the connecting frame (53) being fixedly connected to the extended end of the first electric push rod (52).

8. The blockchain-based power trading system according to claim 7, characterized in that: A gear (55) is installed on the outer side of the connecting frame (53) and the collection box (54) for rotational connection, and a tooth plate (56) is fixed on the inner wall of the display box (1) corresponding to the moving path of the gear (55). When the collection box (54) moves backward, the gear (55) and the tooth plate (56) are meshed and connected.

9. The blockchain-based power trading system according to claim 8, characterized in that: A screw rod (57) is rotatably mounted on the top of the fixed plate (51) through a bearing seat, and a driving motor (58) is fixed to one end of the fixed plate (51) corresponding to the screw rod (57), and the output end of the driving motor (58) is fixedly connected to the screw rod (57). A screw block (59) is threadedly sleeved on the surface of the screw rod (57), and a second electric push rod (510) is fixed on both sides of the screw block (59), and an insert plate (511) is fixed to the extended end of the second electric push rod (510), and side plates (211) are fixed on both sides of the baffle (210), and the insert plate (511) is vertically inserted into the inside of the side plate (211).

10. A blockchain-based electricity trading method implemented by the system according to claim 1, characterized in that: The power trading method comprises the following steps: (1) A display box is set up in the trading hall. Staff will enter the information of power generation companies that can trade electricity into the system and fill it out on the information board installed inside the display box for loop playback; (2) Customers can choose to complete electricity transactions on the online app according to their needs, or they can select power generation companies through the display box and complete the identification of the selected companies inside the display box; (3) Obtaining power information, generating a seller transaction document based on the power information, and sending the seller transaction document and seller information to the blockchain for identity verification; (4) Obtaining user information, generating a buyer transaction receipt based on the user information, and sending the seller transaction receipt and user information to the blockchain for identity verification; (5) Receive the random number generated by the buyer and the verification code generated by the seller based on the random number, decode the verification code to obtain the decoded random number contained in the verification code, and compare and verify it with the random number. If the verification is successful, merge the seller's transaction document and the buyer's transaction document to generate an electricity transaction document.

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