National park sustainable product tracing and authentication system and method based on block chain technology

Abstract

The invention relates to a national park sustainable product traceability and authentication system and method based on a block chain technology, and belongs to the technical field of product traceability. The national park sustainable product tracing and authentication system comprises a cloud server used for maintaining and operating a block chain network and deploying an intelligent contract, a production information input terminal used for uploading production information, an input terminal used for uploading quality authentication information, a first mobile terminal used for uploading transaction information, and a second mobile terminal used for uploading transaction information. And the traceability information query terminal is used for tracing and displaying traceability information of the park products. According to the invention, the cloud server runs and maintains the block chain network, the smart contract of production information, quality authentication and transaction information is deployed on the block chain network, and various types of information are uploaded to the block chain network through the smart contract, so that a complete product life cycle record capable of being continuously queried is formed; the decentration and non-tampering characteristics of the system ensure the security and credibility of the data.

Description

Technical Field

[0001] The present invention belongs to the technical field of product traceability, and specifically relates to a national park sustainable product traceability and authentication system and method based on blockchain technology. Background Art

[0002] As global attention to environmental protection and sustainable development increases, consumers are increasingly inclined to buy products with sustainability certification, such as organic food, environmentally friendly handicrafts, and products made from renewable resources. For national parks and their surrounding areas, such products not only represent high quality and environmental protection, but also often contain cultural and ecological values. However, counterfeit and inferior products and false propaganda occur frequently in the market, and consumers find it difficult to obtain reliable information about product sources, production processes, and certification status. This information asymmetry not only harms the rights and interests of consumers, but also creates an unfair competitive environment for companies and communities that are truly committed to sustainable production.

[0003] Blockchain technology has gained wide attention in the fields of supply chain management and product traceability in recent years due to its decentralized, tamper-proof and highly transparent characteristics. Blockchain technology can establish detailed records for the production, transportation and sales process of each product, ensuring the authenticity and traceability of information, thereby enhancing consumer trust and satisfaction. Summary of the invention

[0004] The purpose of the present invention is to provide a national park sustainable product traceability and certification system and method based on blockchain technology in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A national park sustainable product traceability and certification system based on blockchain technology, the national park sustainable product traceability and certification system is used to trace the product source according to the markers on the park products, the system includes:

[0007] A cloud server for maintaining and operating the blockchain network and deploying smart contracts for the traceability information of park products, including production information, quality certification information, and transaction information;

[0008] A production information input terminal, used to upload production information to the blockchain network;

[0009] An authentication information input terminal, used to upload quality authentication information to the blockchain network;

[0010] A first mobile terminal, used to upload transaction information to the blockchain network;

[0011] The traceability information query terminal is used to scan the markers on the park products at the exit channel, trace and display the traceability information of the park products;

[0012] Among them, the traceability information query terminal is arranged in several groups, and the traceability information query terminal in the group reciprocates along a patrol track, and the patrol track is arranged on one side of the exit passage.

[0013] As a further optimization scheme of the present invention, the traceability information query terminal has at least two working states: a tracking mode and a traceability mode, and the traceability information query terminal includes a walking mechanism and a carrying mechanism fixed on the walking mechanism; in the tracking mode, the walking mechanism travels along the patrol track, and when the carrying mechanism carries the park product, the traceability information query terminal enters the traceability mode. In the traceability mode, when the trigger component is not triggered, the walking mechanism is braked, otherwise, the walking mechanism moves.

[0014] As a further optimization scheme of the present invention, the traceability information query terminal also includes a scanning component and a trigger component arranged on a carrying mechanism. A display is provided on the scanning component. In the traceability mode, the scanning component scans the markers on the park products and retrieves the traceability information through the cloud server. The display is used to display the traceability information within a set time period. When there is no park product on the carrying mechanism and the traceability information is not displayed on the display, the traceability information query terminal enters a tracking mode.

[0015] As a further optimization scheme of the present invention, the supporting mechanism includes a supporting component, a pressure sensor fixedly mounted on the top of the supporting component, and a carrier plate fixedly mounted on the top of the pressure sensor. A mounting groove corresponding to the trigger component is provided on one side of the supporting component. The trigger component includes a handle slidably mounted on the inner side of the mounting groove, a trigger switch fixedly mounted at one end of the mounting groove, and a reset member fixedly mounted at the other end of the mounting groove and fixed to the handle. A first magnetic component is fixedly mounted on one end of the handle, and a second magnetic component corresponding to the first magnetic component is provided on the inner side of the mounting groove.

[0016] As a further optimization solution of the present invention, the scanning assembly includes a mounting frame and a first camera fixedly mounted on the top of the mounting frame, and a plurality of displays are provided, and the plurality of displays are fixedly connected to the mounting frame.

[0017] As a further optimization scheme of the present invention, the patrol track includes a first straight section, a second straight section, and two curved sections symmetrically arranged between the first straight section and the second straight section, the first straight section is arranged close to the exit channel, and the driving speed setting value of the walking mechanism in the first straight section is less than the driving speed setting value in the second straight section.

[0018] As a further optimization scheme of the present invention, the walking mechanism includes a tracking trolley and a second camera arranged on the front side of the tracking trolley, the second camera is used to identify the patrol track and the traceability information query terminal in front, when the second camera on a traceability information query terminal recognizes that there is another traceability information query terminal in front, the traceability information query terminal where the second camera is located stops traveling.

[0019] As a further optimization scheme of the present invention, the transaction information includes the identity information of the product seller, the first mobile terminal is connected to a smart wearable device, the smart wearable device is used to record and send the identity information of the product seller, and the first mobile terminal uploads the identity information sent by the smart wearable device to the blockchain network through a smart contract.

[0020] As a further optimization solution of the present invention, the system also includes a second mobile terminal carried by the tourist, and the second mobile terminal is used to scan the markers on the park products, trace back and display the traceability information of the park products.

[0021] A method for tracing and certifying sustainable products of national parks based on blockchain technology, comprising the following steps:

[0022] S1. Maintain and operate the blockchain network through cloud servers and deploy smart contracts for the traceability information of park products, including production information smart contracts, quality certification information smart contracts and transaction information smart contracts;

[0023] S2. The production information input terminal is connected to the cloud server and uploads the production information to the blockchain network through the production information smart contract;

[0024] S3, the authentication information input terminal is connected to the cloud server, and the quality authentication information is uploaded to the blockchain network through the quality authentication information smart contract;

[0025] S4. The first mobile terminal connects to the cloud server and uploads transaction information to the blockchain network through a transaction information smart contract;

[0026] S5. The traceability information query terminal travels along the patrol track on one side of the exit channel. When the traceability information query terminal carries park products, it scans the markers on the park products and connects to the cloud server, and traces and displays the traceability information of the park products through the blockchain network.

[0027] The beneficial effects of the present invention are:

[0028] 1) The present invention runs and maintains a blockchain network through a cloud server, deploys traceability information smart contracts related to production information, quality certification and transaction information on the blockchain network, and uploads various types of information to the blockchain network through smart contracts, forming a complete product life cycle record that can be queried continuously. The decentralized and tamper-proof characteristics of the system ensure the security and credibility of the data;

[0029] 2) The present invention sets a traceability information query module on one side of the exit passage. After purchasing park products, tourists can query the above information through the tracing information query terminal that circulates while queuing for exiting the park. Tourists can trace the traceability information of park products while queuing and check the authentication information, thereby improving the tourists' playing experience during the peak period of traffic flow and effectively safeguarding the rights and interests of consumers;

[0030] 3) The traceability information query terminal of the present invention has two working states: tracking mode and tracing mode. In the tracking mode, the walking mechanism travels along the patrol track to avoid tourists concentrating on one side of the patrol track and affecting other tourists from leaving the park. When the carrying mechanism carries park products, the traceability information query terminal enters the traceability mode. In this mode, when the trigger component is not triggered, the walking mechanism brakes to facilitate tourists to view the traceability information. When tourists move forward, the trigger component causes the walking mechanism to continue to travel, ensuring that tourists have sufficient time to view the traceability information.

[0031] 4) Two magnetic components are correspondingly arranged on the handle and the mounting groove of the trigger mechanism of the present invention. When the tourist overcomes the elastic force of the spring and pushes the handle and presses the trigger switch through the handle, the magnetic component provides a pulling force to the handle, thereby avoiding frequent state conversion of the trigger switch due to shaking, and making the process of tourists operating the trigger mechanism more labor-saving. When the tourist stops moving forward and releases the handle, the elastic force of the reset member is greater than the attraction of the magnetic component, and the handle automatically resets, thereby improving the tourists' experience when tracing the source of the product;

[0032] 5) The present invention sets multiple displays on the scanning component of the traceability information query terminal, which can display the traceability information of several park products. The traceability information display content disappears after a set time. When there is no traceability information display content on the traceability information query terminal and no park products are carried, the traceability information query terminal re-enters the tracking mode to avoid the traceability information query terminal being stranded at a certain place on the patrol track, and the traceability information query terminal moves at a high speed on the side of the patrol track away from the exit channel, thereby improving the utilization rate of the traceability information query terminal;

[0033] 6) In the present invention, the first mobile terminal is connected to a smart wearable device, which is used to record and send the identity information, transaction venue information and transaction location information of the product seller. The first mobile terminal uploads the above information to the blockchain network through a smart contract. When the traceability information query terminal is tracing the source of the tourist, if there is a missing traceability information or the predetermined transaction venue information does not match the transaction location information, the tourist will be prompted to avoid infringement of the tourist's consumer rights when purchasing park products. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a system block diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the cloud server structure of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the traceability information query terminal of the present invention;

[0037] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0038] Figure 5 It is a schematic diagram of the internal structure of the trigger component of the present invention;

[0039] Figure 6 It is a schematic diagram of the working status of the traceability information query terminal of the present invention.

[0040] In the figure: 1. walking mechanism; 2. carrying mechanism; 3. scanning component; 4. trigger component; 5. display; 6. mounting slot; 11. tracking trolley; 12. second camera; 21. supporting component; 22. pressure sensor; 23. carrier plate; 24. guide rod; 25. limiting cylinder; 31. mounting frame; 32. first camera; 41. handle; 42. trigger switch; 43. reset member; 44. first magnetic component; 45. second magnetic component; 46. baffle; T1, first straight section; T2, second straight section. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0042] First embodiment

[0043] like Figure 1As shown, a national park sustainable product traceability and certification system based on blockchain technology is used to trace the product according to the markers on the park product. The park product is a sustainable traceability certified product sold in the national park and its surrounding areas. The marker on the park product is a barcode, a QR code or an identification layer composed of other graphics. The marker in this embodiment is preferably a QR code. The national park sustainable product traceability and certification system includes a cloud server, which is connected to a production information input terminal, an authentication information input terminal, a first mobile terminal, and a traceability information query terminal. The cloud server is used to maintain and operate the blockchain network and deploy smart contracts for the traceability information of park products. The traceability information includes production information, quality certification information, and transaction information. The above information corresponds to the production information smart contract, the quality certification information smart contract, and the transaction information smart contract, respectively.

[0044] Specifically, production information includes key data collected at each stage of product production, such as the source of raw materials, production process, park product number information, etc. These data are automatically collected through IoT devices (such as radio frequency identification tags, sensors, etc.) to ensure the accuracy and real-time nature of the data. The traceability information query terminal can display this information, which can reduce the situation of false propaganda by park product manufacturers. Quality certification information is product quality certification information collected by third-party quality inspection agencies. Transaction information includes the identity information of the seller of park products, transaction time information, transaction venue information, and transaction location information. Please refer to Figure 2 The cloud server includes a smart contract management module, a distributed coordination module, a consensus algorithm control module, an on-chain management module, a query management module, and a traceability information storage module. The smart contract management module is used to build various smart contracts on the blockchain network. The distributed coordination module is used to maintain the state transition of consensus node leaders, followers, and observers. The consensus algorithm control module is used to call the consensus algorithm of the blockchain network. The cloud server is deployed with the main chain's smart contract, which can index the sub-chain through the main chain. The production information smart contract, the quality certification information smart contract, and the transaction information smart contract are the smart contracts of each sub-chain. The on-chain management module is used to call the smart contracts of each sub-chain and chain the traceability information. The query management module is used to call the smart contract of the main chain to trace the park products. The traceability information storage module is used to store various traceability information. The specific on-chain method of the blockchain network can be found in the Chinese patent document with the publication number CN113506117A.

[0045] The production information input terminal is used to upload production information to the blockchain network, and the production information input terminal is connected to the above-mentioned Internet of Things device for collecting key data at each stage of product production. The authentication information input terminal is used to upload quality authentication information to the blockchain network, and the authentication information input terminal is connected to the Internet of Things device used for quality inspection of products in a third-party quality inspection agency. The first mobile terminal is preferably a smart phone carried by the product seller, which is used to upload transaction information to the blockchain network. The first mobile terminal is connected to a smart wearable device, which is used to record and send the identity information of the product seller. The first mobile terminal uploads the identity information sent by the smart wearable device to the blockchain network through a smart contract. When the product seller sells park products in or around the national park, he needs to carry a smart wearable device. The smart wearable device in this embodiment is preferably a smart bracelet, which stores the identity information and transaction location information of the product seller, and the transaction location information is collected by the locator in the smart bracelet.

[0046] During the production process of park products, the production information input terminal uploads the production information to the blockchain network through the production information smart contract. After the park products are produced, the park products are inspected by a third-party quality inspection agency. The certification information input terminal uploads the quality certification information to the blockchain network through the quality certification information smart contract. After the product seller obtains the park products, he registers his identity information and transaction location information with the national park staff and wears a smart bracelet that stores the above identity information and transaction location information. After that, the product seller sells the park products at the registered transaction location. The smart bracelet can send the product seller's identity information and transaction location information to the first mobile terminal when the park product is traded. When tourists purchase park products, the first mobile terminal sends a call information instruction to the smart bracelet. After receiving the instruction, the smart bracelet sends the product seller's identity information and transaction location information and the transaction location information obtained by the smart bracelet in real time to the first mobile terminal. The first mobile terminal then uploads the above information and transaction time information to the blockchain network.

[0047] The traceability information query terminal has at least two working states: tracking mode and traceability mode, and the traceability information query terminal includes a walking mechanism 1 and a supporting mechanism 2 fixed on the walking mechanism 1. The exit of the national park has an exit passage. Figure 3 and Figure 6The traceability information query terminal is used to scan the markers on the park products at the exit channel, trace and display the traceability information of the park products. The traceability information query terminal is provided with several groups, and the number of groups of the traceability information query terminal corresponds to the number of exit channels. The grouped traceability information query terminals reciprocate along the patrol track, and the patrol track is set on one side of the exit channel. The patrol track includes a first straight section T1, a second straight section T2, and two curved sections symmetrically arranged between the first straight section T1 and the second straight section T2. ​​Different markings are provided on the first straight section T1 and the second straight section T2 to distinguish the road section on which the traceability information query terminal travels during its travel. The first straight section T1 is arranged close to the exit channel, and the travel speed setting value of the walking mechanism 1 in the first straight section T1 is less than the travel speed setting value in the second straight section T2. The walking mechanism 1 includes a tracking vehicle 11 and a second camera 12 arranged on the front side of the tracking vehicle 11. The second camera 12 is used to identify the patrol track and the traceability information query terminal in front. The second camera 12 cooperates with the control module inside the tracking vehicle 11 to perform image recognition on the patrol track, and adjust the moving direction and speed of the tracking vehicle 1 according to the recognition result. The above-mentioned image recognition is common knowledge and will not be elaborated here.

[0048] In the tracking mode, the walking mechanism 1 travels along the patrol track. When the carrying mechanism 2 carries the park products, the traceability information query terminal enters the traceability mode. In the traceability mode, when the trigger component 4 is not triggered, the walking mechanism 1 brakes, otherwise, the walking mechanism 1 moves. The above-mentioned driving speed setting value in the first straight section T1 and the driving speed setting value in the second straight section T2 are respectively the preset uniform driving speeds of the walking mechanism 1 on the first straight section T1 and the second straight section T2. ​​In this embodiment, the driving speed setting value in the first straight section T1 is preferably 1.5km / h, and the driving speed setting value in the second straight section T2 is preferably 20km / h. When the second camera 12 on a traceability information query terminal recognizes that there is another traceability information query terminal in front, the traceability information query terminal where the second camera 12 is located stops driving.

[0049] like Figure 3-5As shown, the bearing mechanism 2 includes a supporting component 21, a pressure sensor 22 fixedly mounted on the top of the supporting component 21, and a carrier plate 23 fixedly mounted on the top of the pressure sensor 22. A plurality of guide rods 24 are provided at the bottom of the carrier plate 23, and a limiting cylinder 25 corresponding to the guide rods 24 is provided at the top of the supporting component 21. The supporting component 21 is a box-type structure with a power supply and a controller disposed therein. The box-type structure covers a large area of ​​the tracking trolley 11 to prevent tourists from using the tracking trolley 11 to carry items they carry. A mounting groove 6 corresponding to the trigger assembly 4 is provided on one side of the support component 21. The trigger assembly 4 includes a handle 41 slidably arranged on the inner side of the mounting groove 6, a trigger switch 42 fixedly arranged at one end of the mounting groove 6, and a reset member 43 fixedly arranged at the other end of the mounting groove 6 and fixed to the handle 41. The reset member 43 in this embodiment is preferably a spring, and both ends of the spring are respectively fixedly connected to one side of the handle 41 extending into the mounting groove 6 and the end of the mounting groove 6. A first magnetic member 44 is fixedly arranged at one end of the handle 41, and a second magnetic member 45 corresponding to the first magnetic member 44 is provided on the inner side of the mounting groove 6.

[0050] The traceability information query terminal also includes a scanning component 3 and a trigger component 4 arranged on the carrier 2. A display 5 is provided on the scanning component 3. The scanning component 3 includes a mounting frame 31 and a first camera 32 fixedly arranged on the inner top of the mounting frame 31. There are multiple displays 5, and the multiple displays 5 are fixedly connected to the mounting frame 31. The traceability information query terminal also has a speaker. The speaker can be integrated on the display 5 or can be set separately from the display 5. The speaker in this embodiment is set on the mounting frame 31. When the traceability information is missing, the park products purchased by tourists may be counterfeit and shoddy products. The speaker issues a voice prompt to remind tourists to pay attention to protecting their own consumer rights. In the traceability mode, the scanning component 3 scans the markers on the park products and retrieves the traceability information through the cloud server. The display 5 is used to display the traceability information within a set time. When there is no park product on the carrier 2 and the traceability information is not displayed on the display 5, the traceability information query terminal enters the tracking mode.

[0051] When tourists are at the exit channel, they can place the park products they purchased on the carrier 23 and detect the park products through the pressure sensor 22. The pressure sensor 22 transmits the pressure information it collects to the controller inside the support component 21. The controller is connected to the tracking car 11, the second camera 12, the first camera 32 and the display 5. When the pressure exceeds the pressure setting value, the controller sends a control instruction to the tracking car 11, so that the traceability information query terminal enters the traceability mode. At the same time, the controller scans the QR code on the park product through the first camera 32. The controller obtains the number of the park product according to the scanning result, and retrieves the product traceability information from the blockchain network through the number, and displays the traceability information of the park product through the display 5. When the traceability information is missing, or the transaction venue information does not match the transaction location information, a voice prompt is issued through the speaker, and the tourists can return to the transaction location to negotiate with the product seller, or they can search for monitoring based on the transaction location information and transaction time information, which is convenient for tourists to protect their own rights and interests when purchasing counterfeit and shoddy products.

[0052] When tourists are at the exit passage and need to queue, when the exit team moves forward and tourists have not checked the traceability information clearly, tourists can pull the handle 41 so that the handle 41 overcomes the spring force and presses the trigger switch 42. The trigger switch 42 is connected to the controller in the support component 21. After the trigger switch 42 is pressed, the controller allows the tracking car 11 to continue to travel. When the travel speed reaches the above-mentioned travel speed setting value in the first straight section T1, the tracking car 11 travels at a constant speed. When the trigger switch 42 is pressed, the second magnetic component 45 provides attraction to the first magnetic component 44 to pull the handle 41, making the tourist's operation process more labor-saving. After the tourist releases the handle 41, the elastic force of the spring is greater than the attraction between the second magnetic component 45 and the first magnetic component 44, and the handle 41 is reset by the spring. In addition, the handle 41 is L-shaped, and an opening corresponding to the handle 41 is provided on the mounting groove 6. Two symmetrical baffles 46 are fixedly provided on one side of the handle 41 extending into the mounting groove 6. Both baffles 46 are in contact with the inner wall of the mounting groove 6, and are used to close the opening of the mounting groove 6 when the handle 41 moves. The above-mentioned situation of queuing is more common in national parks during peak passenger flow periods, and in national parks where tickets or other rental items need to be exchanged when leaving the park. In addition, the support component 21 with a box-like structure can cover a large amount of the upper surface area of ​​the tracking car 11. In addition to protecting its internal control equipment, it can also prevent tourists from placing their own items on the tracking car 11. When the controller detects that the load plate 23 carries items for a long time, that is, when the pressure measured by the pressure sensor 22 exceeds the pressure setting value, the duration of this situation exceeds the threshold value, the speaker issues a voice warning to remind tourists to take out the items placed on the load plate 23 for a long time.

[0053] like Figure 1As shown, the system also includes a second mobile terminal carried by tourists, and the second mobile terminal is used to scan the markers on the park products, trace and display the traceability information of the park products. The second mobile terminal is preferably a smart phone carried by tourists, and tourists can trace the park products through the smart phone. Its working method is similar to the scanning component 3 and the display 5 of the traceability information query terminal, so it will not be repeated too much. In addition, in some other embodiments, a fixed-point query terminal is set at other locations in the national park and around the national park. The difference between the fixed-point query terminal and the traceability information query terminal is that the fixed-point query terminal does not have a walking mechanism 1. In addition to using the traceability information query terminal to trace the product at the exit passage of the national park, tourists can also check the traceability information of the park products through the fixed-point query terminal. In addition, in some other embodiments, for the distribution and distribution process of park products, corresponding smart contracts can also be deployed on the blockchain network, so as to trace the transportation process of park products. In some other embodiments, the system also deploys smart contracts for automated processing of transactions and payments on the blockchain network. During the transaction, the second mobile terminal retrieves the quality certification information through the blockchain network. When the park product has the corresponding quality certification information, the smart contract automatically triggers the payment process to ensure the efficiency and security of the transaction. Smart contracts for various application scenarios such as product recall management and reward points can also be deployed on the blockchain network.

[0054] Second embodiment

[0055] This embodiment relates to a national park sustainable product traceability and authentication method based on blockchain technology. The method can be used in the national park sustainable product traceability and authentication system in the first embodiment, and specifically includes the following steps:

[0056] S1. Maintain and operate the blockchain network through cloud servers and deploy smart contracts for the traceability information of park products, including production information smart contracts, quality certification information smart contracts and transaction information smart contracts;

[0057] S2. The production information input terminal is connected to the cloud server and uploads the production information to the blockchain network through the production information smart contract. The production information includes key data collected at each stage of product production, such as the source of raw materials, production process, park product number information, etc.;

[0058] S3. The certification information input terminal is connected to the cloud server and uploads the quality certification information to the blockchain network through the quality certification information smart contract. The quality certification information is the product quality certification information collected by a third-party quality inspection agency;

[0059] S4. The first mobile terminal connects to the cloud server and uploads transaction information to the blockchain network through a transaction information smart contract. The transaction information includes the identity information of the park product seller, transaction time information, transaction location information, and transaction location information;

[0060] S5. The traceability information query terminal travels along the patrol track on one side of the exit channel. When the traceability information query terminal carries park products, it scans the markers on the park products and connects to the cloud server, and traces and displays the traceability information of the park products through the blockchain network.

[0061] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A national park sustainable product traceability and certification system based on blockchain technology, the national park sustainable product traceability and certification system is used to trace the product source according to the markers on the park products, characterized in that: The system includes: A cloud server for maintaining and operating the blockchain network and deploying smart contracts for the traceability information of park products, including production information, quality certification information, and transaction information; A production information input terminal, used to upload production information to the blockchain network; An authentication information input terminal, used to upload quality authentication information to the blockchain network; A first mobile terminal, used to upload transaction information to the blockchain network; The traceability information query terminal is used to scan the markers on the park products at the exit channel, trace and display the traceability information of the park products; Among them, the traceability information query terminal is arranged in several groups, and the traceability information query terminal in the group reciprocates along a patrol track, and the patrol track is arranged on one side of the exit passage.

2. The national park sustainable product traceability and certification system according to claim 1, characterized in that: The traceability information query terminal has at least two working states, namely a tracking mode and a tracing mode, and the traceability information query terminal comprises a walking mechanism (1) and a carrying mechanism (2) fixed on the walking mechanism (1); in the tracking mode, the walking mechanism (1) travels along a patrol track; when the carrying mechanism (2) carries park products, the traceability information query terminal enters the tracing mode; in the tracing mode, when the trigger component (4) is not triggered, the walking mechanism (1) brakes; otherwise, the walking mechanism (1) moves.

3. The national park sustainable product traceability and certification system according to claim 2, characterized in that: The traceability information query terminal further comprises a scanning component (3) and a trigger component (4) arranged on the supporting mechanism (2); a display (5) is arranged on the scanning component (3); in the traceability mode, the scanning component (3) scans the markers on the park product and retrieves the traceability information through the cloud server; the display (5) is used to display the traceability information within a set time period; when there is no park product on the supporting mechanism (2) and the display (5) does not display the traceability information, the traceability information query terminal enters the tracking mode.

4. The national park sustainable product traceability and certification system according to claim 2, characterized in that: The bearing mechanism (2) comprises a supporting component (21), a pressure sensor (22) fixedly mounted on the top of the supporting component (21), and a carrier plate (23) fixedly mounted on the top of the pressure sensor (22); a mounting groove (6) corresponding to the trigger assembly (4) is provided on one side of the supporting component (21); the trigger assembly (4) comprises a handle (41) slidably mounted on the inner side of the mounting groove (6), a trigger switch (42) fixedly mounted on one end of the mounting groove (6), and a reset member (43) fixedly mounted on the other end of the mounting groove (6) and fixed to the handle (41); a first magnetic component (44) is fixedly mounted on one end of the handle (41), and a second magnetic component (45) corresponding to the first magnetic component (44) is provided on the inner side of the mounting groove (6).

5. The national park sustainable product traceability and certification system according to claim 1, characterized in that: The scanning assembly (3) comprises a mounting frame (31) and a first camera (32) fixedly mounted on the top of the mounting frame (31); a plurality of displays (5) are provided, and the plurality of displays (5) are fixedly connected to the mounting frame (31).

6. The national park sustainable product traceability and certification system according to claim 1, characterized in that: The patrol track comprises a first straight section, a second straight section, and two curved sections symmetrically arranged between the first straight section and the second straight section. The first straight section is arranged close to the exit passage. The travel speed setting value of the walking mechanism (1) in the first straight section is smaller than the travel speed setting value in the second straight section.

7. The national park sustainable product traceability and certification system according to claim 6, characterized in that: The walking mechanism (1) comprises a tracking vehicle (11) and a second camera (12) arranged at the front side of the tracking vehicle (11), the second camera (12) being used to identify a patrol track and a traceability information query terminal in front, and when the second camera (12) on a traceability information query terminal identifies the presence of another traceability information query terminal in front, the traceability information query terminal where the second camera (12) is located stops traveling.

8. The national park sustainable product traceability and certification system according to claim 1, characterized in that: The transaction information includes the identity information of the product seller. The first mobile terminal is connected to a smart wearable device, and the smart wearable device is used to record and send the identity information of the product seller. The first mobile terminal uploads the identity information sent by the smart wearable device to the blockchain network through a smart contract.

9. The national park sustainable product traceability and certification system according to claim 1, characterized in that: The system also includes a second mobile terminal carried by the tourist, and the second mobile terminal is used to scan markers on park products, trace back and display the traceability information of the park products. A method for tracing and authenticating sustainable products in national parks based on blockchain technology, characterized by: The national park sustainable product traceability and certification system according to any one of claims 1 to 9 comprises the following steps: S1. Maintain and operate the blockchain network through cloud servers and deploy smart contracts for the traceability information of park products, including production information smart contracts, quality certification information smart contracts and transaction information smart contracts; S2. The production information input terminal is connected to the cloud server and uploads the production information to the blockchain network through the production information smart contract; S3, the authentication information input terminal is connected to the cloud server, and the quality authentication information is uploaded to the blockchain network through the quality authentication information smart contract; S4. The first mobile terminal connects to the cloud server and uploads transaction information to the blockchain network through a transaction information smart contract; S5. The traceability information query terminal travels along the patrol track on one side of the exit channel. When the traceability information query terminal carries park products, it scans the markers on the park products and connects to the cloud server, and traces and displays the traceability information of the park products through the blockchain network.

Images