Processing method and system for plastic recovery and electronic equipment

Abstract

The invention discloses a treatment method and system for plastic recovery and electronic equipment, and relates to the technical field of environmental protection science and technology. The method comprises the following steps: receiving a detection request sent by a first user; the first plastic is transported to a first place according to the detection request, the first place is an area for storing reference density liquid, and the reference density liquid comprises water; the first plastic is classified through the first place, a first classification result and a second classification result are obtained, the first classification result is plastic made of polyvinyl chloride materials, and the second classification result is plastic made of non-polyvinyl chloride materials; obtaining a target image corresponding to the second classification result; inputting the target image into a preset image database for processing to obtain a third classification result and a fourth classification result; and the first plastic is treated according to the classification result. By implementing the technical scheme provided by the invention, in the whole classification process, the influence of manual intervention is reduced, and the possibility of manual recording errors is reduced, so that the classification accuracy is improved.

Description

Technical Field

[0001] The present application relates to the field of environmental protection technology, and specifically to a method, system and electronic equipment for recycling plastics. Background Art

[0002] As a multifunctional material, plastic has shown a wide range of application value in many key fields such as packaging, construction, transportation, medical care, and agriculture, and has played an indispensable role in promoting the rapid development of modern society. Its lightness, durability, cost-effectiveness, and high plasticity make plastic products an indispensable part of daily life and industrial production. However, the popularity of plastics is also accompanied by the emergence of environmental problems, especially plastic products are difficult to degrade naturally in the natural environment, and random disposal can easily cause serious environmental pollution problems, which is often referred to as "white pollution."

[0003] To meet this challenge, plastic recycling management is particularly important. Plastic recycling aims to reduce environmental pollution and promote the recycling of resources. It is a key link in achieving sustainable development goals. In the plastic recycling process, the first step is to scientifically classify the recycled plastics, and then store the classified plastics separately for subsequent transportation to the corresponding processing plants for reprocessing. At present, plastic classification and recording work mainly relies on manual operation, that is, manual identification and classification of recycled plastics, and manual recording of classification results. Although this method can record the classification of plastics to a certain extent, when faced with a large amount of recycled plastics, manual recording is prone to errors, resulting in inaccurate plastic classification, affecting subsequent processing and utilization.

[0004] Therefore, there is an urgent need for a plastic recycling processing method, system and electronic equipment that can solve the above-mentioned technical problems. Summary of the invention

[0005] The present application provides a processing method, system and electronic equipment for plastic recycling. The method uses a reference density liquid to preliminarily classify a first plastic, automatically distinguishes plastics made of vinyl chloride and non-vinyl chloride materials, and then processes the non-vinyl chloride plastics through image recognition technology to obtain more detailed classification results. The entire classification process reduces the impact of human intervention and the possibility of human recording errors, thereby improving the accuracy of classification.

[0006] In a first aspect, the present application provides a method for processing plastic recycling, which is applied to a server, and the method includes: receiving a detection request sent by a first user, the detection request is used to request a classification detection of the material of a first plastic, and the first plastic is a plastic product recycled by a first smart recycling station; transporting the first plastic to a first location according to the detection request, and the first location is an area for storing a reference density liquid, and the reference density liquid includes water; classifying the first plastic at the first location to obtain a first classification result and a second classification result, the first classification result is a plastic made of polyvinyl chloride, and the second classification result is a plastic made of non-polyvinyl chloride; obtaining a target image corresponding to the second classification result; inputting the target image into a preset image database for processing to obtain a third classification result and a fourth classification result; processing the first plastic according to the classification results.

[0007] By adopting the above technical solution, the first plastic is automatically transported to the first location upon receiving the detection request. This step reduces the need for manual handling and preliminary classification. The use of reference density liquid for preliminary classification can automatically distinguish between plastics made of polyvinyl chloride and non-polyvinyl chloride materials, thereby reducing manual intervention. For plastics made of non-polyvinyl chloride materials, they are further processed through image recognition technology to obtain a target image, which is input into a preset image database for processing, thereby obtaining a more detailed classification result. Image recognition technology is efficient and accurate, and the entire classification process reduces manual intervention, thereby improving classification accuracy.

[0008] Optionally, after processing the first plastic according to the classification result, the method also includes: obtaining a digital identifier corresponding to the current node of the second plastic; obtaining current node information according to the digital identifier; establishing a first corresponding relationship between the current node information and the digital identifier, and writing the first corresponding relationship into the blockchain ledger.

[0009] By adopting the above technical solution, the digital identifier corresponding to the current node of the second plastic is obtained. Each node has a uniquely identifiable digital label. The current node information is obtained according to the digital identifier, and a first corresponding relationship between the current node information and the digital identifier is established. The first corresponding relationship is written into the blockchain account book, which can ensure the consistency and security of the data. Blockchain, as a distributed ledger technology, has the characteristics of being tamper-proof and highly transparent, and can prevent data from being maliciously tampered with.

[0010] Optionally, after establishing a first correspondence between the current node information and the digital identifier, and writing the first correspondence into the blockchain ledger, the method also includes: obtaining a target recycling package, which is a plastic that packages the first plastic corresponding to the classification result; encoding the target recycling package according to a preset rule to obtain a first code; establishing a second correspondence between the first code and the target recycling package, and writing the second correspondence into the blockchain ledger.

[0011] By adopting the above technical solution, a target recycling package is obtained. The target recycling package is the plastic that packs the first plastic according to the classification result. The target recycling package is encoded according to a preset rule to obtain a first code, and an identifier is provided for each recycling package. This identifier is used to efficiently track and identify the recycling package, establish a second corresponding relationship between the first code and the target recycling package, and write the second corresponding relationship into the blockchain account book to ensure data integrity.

[0012] Optionally, the target recycling package is encoded according to preset rules to obtain a first code, specifically including: obtaining a first weight and a first material, the first weight being the weight corresponding to the target recycling package, and the first material being the material of the plastic corresponding to the target recycling package; encoding the target recycling package according to the first weight, the first material and the second location to obtain the first code, and the second location is the location corresponding to the first smart recycling station.

[0013] By adopting the above technical solution, the weight of the target recycling package, i.e., the first weight, is obtained, and then the material of the plastic corresponding to the target recycling package, i.e., the first material, is identified, and then according to the address of the first intelligent recycling station, i.e., the second location, the first weight, the first material and the second location are encoded to generate a unique first code, which can accurately identify each recycling package for subsequent tracking and identification.

[0014] Optionally, after establishing a second corresponding relationship between the first code and the target recycling package, and writing the second corresponding relationship into the blockchain ledger, the method also includes: receiving a traceability request sent by a second user, the traceability request being used to request raw material traceability for the target finished product; analyzing the target finished product to obtain a target traceability component; determining a second code corresponding to the target traceability component; determining whether the second code exists in a preset coding table, the preset coding table being the code corresponding to the plastic of the second smart recycling station, and the second smart recycling station being any site for storing recycled plastics; when the second code exists in the preset coding table, it is confirmed that the target traceability component comes from the second smart recycling station, and a prompt message is generated and sent to the second user.

[0015] By adopting the above technical solution, the source of raw materials can be traced according to the traceability request, the target finished product can be analyzed, the components that need to be traced can be determined, and then the second code corresponding to the traceable component can be obtained. By searching the second code, the smart recycling bin corresponding to the source of the raw materials can be finally determined, and a prompt message can be generated and sent to the second user, so that the second user can understand the source of the raw materials and the environmental properties of the finished product, and make a wise purchasing decision.

[0016] Optionally, after establishing a second corresponding relationship between the first code and the target recycling package, and writing the second corresponding relationship into the blockchain ledger, the method also includes: receiving a traceability request sent by a second user, the traceability request being used to request raw material traceability for the target finished product; analyzing the target finished product to obtain a target traceability component; determining a second code corresponding to the target traceability component; determining whether the second code exists in a preset coding table, the preset coding table being the code corresponding to the plastic of the second smart recycling station, and the second smart recycling station being any site for storing recycled plastics; when the second code exists in the preset coding table, it is confirmed that the target traceability component comes from the second smart recycling station, and a prompt message is generated and sent to the second user.

[0017] By adopting the above technical solution, the identity information of the second user is obtained and the target authority level is determined, and it is determined whether the target authority level exists in the preset authority table. The preset authority table is the authority level that can access the target finished product. When the target authority level exists in the preset authority table, it is confirmed that the second user has the authority to access the data, preventing unauthorized users from accessing the data, thereby increasing the security of the system.

[0018] Optionally, after processing the first plastic according to the classification result, the method also includes: obtaining the plastic corresponding to the second material according to the first classification result, the third classification result and the fourth classification result, one classification result corresponding to one second material; obtaining the second weight of the plastic corresponding to the second material; sending the second weight to a preset plastic database, so that the preset plastic database updates the inventory corresponding to the second material according to the second weight.

[0019] By adopting the above technical solution, combined with the first classification results, the third classification results and the fourth classification results, the second material of the plastic can be determined more accurately, the second weight corresponding to the second material can be obtained, and it can be sent to the preset plastic database to achieve precise control of inventory quantity, based on real-time update of inventory information, so as to timely understand the inventory status of the smart recycling station.

[0020] In a second aspect of the present application, a processing system for plastic recycling is provided, the system is a server, the server includes a receiving unit, a processing unit and a confirmation unit; the receiving unit receives a detection request sent by a first user, the detection request is used to request a classification detection of the material of a first plastic, the first plastic is a plastic product recycled by a first intelligent recycling station; obtains a target image corresponding to a second classification result; the processing unit transports the first plastic to a first location according to the detection request, the first location is an area for storing a reference density liquid, the reference density liquid includes water; the first plastic is classified at the first location to obtain a first classification result and a second classification result, the first classification result is a plastic made of polyvinyl chloride, and the second classification result is a plastic made of non-polyvinyl chloride; the target image is input into a preset image database for processing to obtain a third classification result and a fourth classification result; the confirmation unit processes the first plastic according to the classification results.

[0021] Optionally, the receiving unit is used to obtain a digital identifier corresponding to the current node of the second plastic; the processing unit is used to obtain current node information based on the digital identifier; establish a first corresponding relationship between the current node information and the digital identifier, and write the first corresponding relationship into the blockchain ledger.

[0022] Optionally, the receiving unit is used to obtain a digital identifier corresponding to the current node of the second plastic; the processing unit is used to obtain current node information based on the digital identifier; establish a first corresponding relationship between the current node information and the digital identifier, and write the first corresponding relationship into the blockchain ledger.

[0023] Optionally, the receiving unit is used to obtain a first weight and a first material, the first weight being the weight corresponding to the target recycling package, and the first material being the material of the plastic corresponding to the target recycling package; the processing unit is used to encode the target recycling package according to the first weight, the first material and the second location to obtain a first code, and the second location is the location corresponding to the first smart recycling station.

[0024] Optionally, the receiving unit is used to receive a traceability request sent by a second user, the traceability request is used to request raw material traceability for a target finished product; the processing unit is used to analyze the target finished product to obtain a target traceability component; determine a second code corresponding to the target traceability component; determine whether the second code exists in a preset coding table, the preset coding table is the code corresponding to the plastic of the second smart recycling station, and the second smart recycling station is any site for storing recycled plastics; the confirmation unit is used to confirm that the target traceability component comes from the second smart recycling station when the second code exists in the preset coding table, and generate a prompt message to send to the second user.

[0025] Optionally, the receiving unit is used to obtain identity information corresponding to the second user, and determine the target authority level based on the identity information; the processing unit is used to determine whether the target authority level exists in a preset authority table, and the preset authority table is the authority level corresponding to the accessible target finished product; the confirmation unit is used to confirm to analyze the target finished product when the target authority level exists in the preset authority table.

[0026] Optionally, the processing unit is used to obtain the plastic corresponding to the second material based on the first classification result, the third classification result and the fourth classification result, one classification result corresponding to one second material; the receiving unit is used to obtain the second weight of the plastic corresponding to the second material; the processing unit is used to send the second weight to a preset plastic database, so that the preset plastic database updates the inventory corresponding to the second material according to the second weight.

[0027] In a third aspect of the present application, an electronic device is provided, which includes a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory, so that an electronic device executes any one of the methods described above in the present application.

[0028] In a fourth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores instructions, and when the instructions are executed, any one of the above methods of the present application is executed.

[0029] In summary, one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. Upon receiving the inspection request, the first plastic is automatically transported to the first location. This step reduces the need for manual handling and preliminary classification. The use of reference density liquid for preliminary classification can automatically distinguish between plastics made of polyvinyl chloride and non-polyvinyl chloride materials, thereby reducing manual intervention. For plastics made of non-polyvinyl chloride materials, further processing is performed through image recognition technology to obtain the target image, which is input into the preset image database for processing, thereby obtaining a more detailed classification result. Image recognition technology is efficient and accurate, and the entire classification process reduces manual intervention, thereby improving classification accuracy.

[0030] 2. Obtain the digital identifier corresponding to the current node of the second plastic. Each node has a uniquely identifiable digital label. Obtain the current node information based on the digital identifier, establish the first correspondence between the current node information and the digital identifier, and write the first correspondence into the blockchain account book to ensure data consistency and security. Blockchain, as a distributed ledger technology, has the characteristics of being tamper-proof and highly transparent, which can prevent data from being maliciously tampered with. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a process for processing plastic recycling provided in an embodiment of the present application; Figure 2 It is a structural schematic diagram of a processing system for plastic recycling provided in an embodiment of the present application; Figure 3 It is a structural schematic diagram of an electronic device disclosed in an embodiment of the present application.

[0032] Explanation of the reference numerals: 201, receiving unit; 202, processing unit; 203, confirmation unit; 300, electronic device; 301, processor; 302, communication bus; 303, user interface; 304, network interface; 305, memory. DETAILED DESCRIPTION

[0033] In order to enable technicians in this field to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0034] In the description of the embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "for example" or "for example" is intended to present related concepts in a specific way.

[0035] In the description of the embodiments of the present application, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0036] As a multifunctional material, plastic has shown a wide range of application value in many key fields such as packaging, construction, transportation, medical care, and agriculture, and has played an indispensable role in promoting the rapid development of modern society. Its lightness, durability, cost-effectiveness, and high plasticity make plastic products an indispensable part of daily life and industrial production. However, the popularity of plastics is also accompanied by the emergence of environmental problems, especially plastic products are difficult to degrade naturally in the natural environment, and random disposal can easily cause serious environmental pollution problems, which is often referred to as "white pollution."

[0037] To meet this challenge, plastic recycling management is particularly important. Plastic recycling aims to reduce environmental pollution and promote the recycling of resources. It is a key link in achieving sustainable development goals. In the plastic recycling process, the first step is to scientifically classify the recycled plastics, and then store the classified plastics separately for subsequent transportation to the corresponding processing plants for reprocessing. At present, plastic classification and recording work mainly relies on manual operation, that is, manual identification and classification of recycled plastics, and manual recording of classification results. Although this method can record the classification of plastics to a certain extent, when faced with a large amount of recycled plastics, manual recording is prone to errors, resulting in inaccurate plastic classification, affecting subsequent processing and utilization.

[0038] Therefore, how to solve the problem that the current classification of recycled plastics mainly relies on manual operation, manual records are prone to errors, and plastic classification is inaccurate. The embodiment of the present application provides a method for processing plastic recycling, which is applied to a server. The server of the present application can be a platform that provides plastic classification for recycling stations. Figure 1 This is a schematic diagram of a process for recycling plastics provided in an embodiment of the present application, with reference to Figure 1 The method includes the following steps S101-S106.

[0039] S101: receiving a detection request sent by a first user, where the detection request is a request for classifying and detecting a material of a first plastic, where the first plastic is a plastic product recycled by a first smart recycling station.

[0040] In the above S101, the first user refers to the staff of the first intelligent recycling station, and the first intelligent recycling station can be understood as a station where plastic products are stored after recycling. After receiving a pile of plastic products, the first intelligent recycling station needs to classify the recycled plastic products according to different materials, and then pack the classified plastic products, and then transport the packaged plastics to the corresponding processing plant for further processing. The first user currently has a detection request. The first user sends a detection request to the server through the user device. The server receives the detection request sent by the first user. The detection request clearly indicates that the recycled first plastic needs to be classified and tested for material. At this time, the first plastic is a pile of plastic products currently recycled by the first intelligent recycling station. Plastic products are a general term for daily and industrial products made of plastic as the main raw material, including products made of injection molding, blister molding and other processes using plastic as raw materials. Plastic products can be divided into household products, food packaging, building materials, electronic appliances and auto parts according to their uses. Plastic products include plastic storage boxes, plastic basins, plastic beverage bottles, plastic doors and windows, and plastic mobile phone cases.

[0041] S102: transporting the first plastic to a first location according to the inspection request, where the first location is an area for storing a reference density liquid, where the reference density liquid includes water.

[0042] In the above S102, after receiving the detection request, the server determines that the first plastic of the first intelligent recycling station needs to be classified according to the detection request, and first obtains the area of ​​the first intelligent recycling station where the reference density liquid is stored, that is, the first location. Then, the recycled first plastic is preliminarily sorted to ensure that only the plastic to be tested is transported. After sorting, the first plastic can be transported to the first location using a robotic arm control device, or other methods can be used to transport the first plastic to the first location. The first location is an area of ​​the first intelligent recycling station that specifically stores reference density liquids. For example, the liquid can be water or other liquids for subsequent material classification detection.

[0043] S103: Classifying the first plastic at the first location to obtain a first classification result and a second classification result, wherein the first classification result is plastic made of polyvinyl chloride, and the second classification result is plastic not made of polyvinyl chloride.

[0044] In the above S103, after determining that the first plastic is to be transported to the first location, the first plastic can be placed in a container containing a reference density liquid to observe its floating and sinking state in the water. According to the Archimedean principle, plastics of different materials have different floating and sinking states in water due to their different densities. According to the floating and sinking state, the first plastic is divided into two categories: one is plastic made of polyvinyl chloride (PVC) (because its density is usually greater than water, it will sink to the bottom of the water), which is recorded as the first classification result; the other is plastic made of non-polyvinyl chloride (because its density may be less than or equal to water, it will float or suspend in the water), which is recorded as the second classification result. After determining the first classification result, the plastic corresponding to the first classification result can be packaged and then stored in the place where the plastic made of polyvinyl chloride is stacked. Since there are plastics of other materials in the second classification result, the second classification result needs to be classified again.

[0045] S104: Obtain a target image corresponding to the second classification result.

[0046] In the above S104, since the plastics in the second classification result are not made of polyvinyl chloride, a high-resolution camera or video camera can be used to capture images of them. The captured images should clearly and completely reflect the appearance characteristics of the plastics. The captured images are preprocessed, including resizing, graying, noise reduction, normalization and other steps to improve the image quality and recognition rate. When performing image capture, image capture can be performed on a single plastic product, or on multiple plastic products at the same time, and then the materials of the plastic products appearing in the image are classified in turn. The specific image capture method can be set based on actual conditions.

[0047] S105: Input the target image into a preset image database for processing to obtain a third classification result and a fourth classification result.

[0048] In the above S105, after the image acquisition of the second classification result is performed, the target image is obtained. Before the target image is input into the preset image database for processing and the third classification result and the fourth classification result are obtained, a preset image database needs to be constructed. First, a historical image is obtained, and the historical image is an image obtained by shooting a certain plastic product. The historical image is preprocessed, and the preprocessing includes scaling, cropping, color adjustment and noise denoising to obtain a preprocessed image. Feature extraction is performed on the preprocessed image, and the contour and shape features of the plastic part are extracted by detecting the edge information in the image. The texture features of the plastic part are analyzed, including the thickness, direction, density, etc. of the texture. These features are of great significance for distinguishing plastics of different materials. The color features of the plastic part are extracted, including hue, saturation, brightness, etc. Color features are particularly important when identifying plastics of certain specific colors. Before the training of the deep learning algorithm, a large amount of labeled data needs to be prepared. These data should include images of plastic products of different materials, shapes, and colors, and accurately annotate them. Select a suitable deep learning model for training. Common models include convolutional neural networks (CNNs), which have excellent performance in the field of image recognition. Use labeled data to train the model. During the training process, the model will learn how to identify plastics of different materials based on the extracted features. After the preset model is trained, it can be used to perform image processing based on the target image input into the preset image database. The pre-processed target image is input into the preset image database for matching analysis. The database contains image features and classification information of various plastic materials. The target image is classified by material through image recognition algorithms (such as convolutional neural networks). Based on the matching results, non-PVC plastics are further divided into specific material categories, which are recorded as the third classification results (such as polyethylene) and the fourth classification results (such as polypropylene).

[0049] S106: Processing the first plastic according to the classification result.

[0050] In the above S106, after determining the first classification result, the third classification result and the fourth classification result, the first plastic can be classified and stored according to the first classification result, the third classification result and the fourth classification result. Since the first classification result, the third classification result and the fourth classification result are all plastics of known materials, the plastics of known materials can be subsequently recycled, processed or reused according to their material properties. The classification result is fed back to the first user through the user interface or other means. This helps the user understand the material of the recycled plastic and provides a reference for his subsequent recycling behavior.

[0051] In addition, after the material of the first plastic is classified by the above method, the first plastic is distinguished according to the classification result, and then stored after the distinction. After the first plastic is classified, the weight of the classified plastic needs to be obtained, and the current inventory of each material plastic of the first intelligent recycling station is updated in real time, specifically including: obtaining the plastic corresponding to the second material according to the first classification result, the third classification result and the fourth classification result, one classification result corresponds to one second material; obtaining the second weight of the plastic corresponding to the second material; sending the second weight to the preset plastic database, so that the preset plastic database updates the inventory corresponding to the second material according to the second weight. Specifically, the plastic products belonging to the first classification result are obtained from the first plastic, and then the plastic products are marked as corresponding to the second material. At this time, it is the first classification result, so the second material is polyvinyl chloride material. After performing image recognition on the plastic products of the second classification result, the third classification result and the fourth classification result are obtained, and the plastic products corresponding to the third classification result and the fourth classification result are obtained in turn, and then marked as the corresponding material of the plastic product. If it is the third classification result, the second material is polyethylene material. If it is the fourth classification result, the second material is polypropylene material. According to the first classification result, the third classification result and the fourth classification result, the first plastic is distinguished to obtain the plastic corresponding to the second material. One classification result corresponds to one second material, and then the second weight of each plastic corresponding to the second material is obtained in turn. A measuring tool such as an electronic scale or a balance can be used. Place each plastic sample to be tested of the second material on the measuring tool to ensure that the sample is stable and without external interference. Perform weight measurement and record the measurement result as the second weight. At this time, it can be understood that the second weight is the total weight of the plastic corresponding to each classification result. If the second material is polyethylene at this time, the second weight of the plastic corresponding to the polyethylene material is obtained, and the second weight corresponding to the polyethylene material is sent to the preset plastic database, which stores the plastic inventory of the first intelligent recycling station. After receiving the second weight, the preset plastic database updates the inventory corresponding to the second material according to the second weight, and the update process includes parsing. Verification, calculation and other steps to ensure the accuracy and real-time nature of the inventory.

[0052] For example, the first plastic is classified. The first plastic includes three materials, including polyvinyl chloride, polyethylene and polypropylene. Plastic products of different materials are distinguished according to the classification results, and plastics of three materials are obtained. Then the weights of the plastics corresponding to the three materials are obtained in turn, that is, the second weight, and the second weight corresponding to polyvinyl chloride can be obtained. If the second weight is 25kg, the 25kg corresponding to the polyvinyl chloride material can be sent to the preset plastic database at this time, so that the preset plastic database can update the inventory of polyvinyl chloride materials, that is, the second weight is added to the original polyvinyl chloride material to obtain the total weight of polyvinyl chloride plastics in the current first intelligent recycling station.

[0053] In a possible implementation, after recycling plastics, the classified plastics can be transported to different processing plants for processing and processed into different finished products for secondary use. When in use, in order to facilitate subsequent traceability, a management process for plastic recycling can be established and the management process can be written into the blockchain ledger, specifically including: obtaining a target recycling package, which is a plastic that packages the first plastic corresponding to the classification result; encoding the target recycling package according to a preset rule to obtain a first code; establishing a second correspondence between the first code and the target recycling package, and writing the second correspondence into the blockchain ledger. Specifically, according to the previous classification results, determine which first plastics belong to the same category or need to be packaged together. Use appropriate packaging materials (such as plastic bags, cartons, wrapping films, etc.) to package the classified first plastics. After packaging is completed, in order to facilitate subsequent identification of each target recycling package. The target recycling package can be encoded according to the preset rules to obtain the first code. The target recycling package can be encoded using encoding software or other methods to ensure that the encoding process is accurate to avoid confusion or errors in subsequent steps. After the encoding is completed, a unique first code is generated, which will be used to identify the target recycling package in the blockchain ledger. A mapping table can be established to store the correspondence between the first code and the target recycling package. This mapping table will ensure that the corresponding target recycling package can be found quickly and accurately given the first code. Ensure that the blockchain account is ready to accept new data writing. It may involve steps such as connecting to the blockchain network, verifying identity, and preparing transactions. Write the second correspondence (i.e., the mapping relationship between the first code and the target recycling package) into the blockchain account. The writing process needs to follow the writing rules of the blockchain, such as signing, verification, consensus and other steps to ensure the security and consistency of the data. After writing to the blockchain account, verification and confirmation operations are performed to ensure that the data has been written correctly and the blockchain network has reached a consensus.

[0054] In addition, the target recycling package is encoded according to the preset rules to obtain the first code, which specifically includes: obtaining the first weight and the first material, the first weight is the weight corresponding to the target recycling package, and the first material is the material of the plastic corresponding to the target recycling package; encoding the target recycling package according to the first weight, the first material and the second location to obtain the first code, and the second location is the location corresponding to the first intelligent recycling station. Specifically, the target recycling package can be weighed using an accurate weighing device (such as an electronic scale). Ensure that the weighing device has been calibrated and is in normal working condition to avoid errors. Record the weighing result, that is, the first weight of the target recycling package. Determine the material of the plastic in the target recycling package according to the appearance, feel, identification or professional testing methods. Common plastic materials include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), etc. Record the determined material information, that is, the first material of the target recycling package. Specific characters or digital combinations can be used to represent different weight ranges, material types and location information. Ensure that the encoding rules are unique and readable so that they can be accurately identified and decoded in subsequent steps. Extract the key information to be encoded from the obtained first weight, first material and second location information. For example, the first weight is converted into a specific weight range code, the first material is converted into a corresponding material code, and the second location is converted into a location code. According to the established coding rules, the extracted key information is combined and arranged to form a unique first code. The first code is associated with the target recycling package and recorded.

[0055] Further, the steps of recycling plastic to processing are set as multiple nodes, one node corresponds to one step, according to the node currently corresponding to the second plastic, and the information corresponding to the current node is obtained, and the current node and node information are written into the blockchain account book for subsequent traceability, specifically including: obtaining the digital identifier corresponding to the current node of the second plastic; obtaining the current node information according to the digital identifier; establishing a first corresponding relationship between the current node information and the digital identifier, and writing the first corresponding relationship into the blockchain account book. Specifically, the digital identifier corresponding to the current node of the second plastic is obtained, one node corresponds to one digital identifier, and the second plastic is any plastic product. This digital identifier is generated according to the number of nodes, and the rules of the digital identifier should be clear and unambiguous, and can ensure uniqueness, so that each node can be accurately identified in subsequent steps. Relevant information of the current node of the second plastic, such as location, status, attributes, etc., can be obtained by scanning, reading or querying. The digital identifier is used as the unique identity identifier of the current node for identification and tracking in subsequent steps. After determining the digital identifier, the current node information corresponding to the digital identifier can be determined, that is, one digital identifier corresponds to one node information. A mapping table is established to store the corresponding relationship between the digital identifier and the node information. According to the current node information and digital identifiers obtained, the first correspondence between them is constructed. The constructed first correspondence is written into the blockchain account book. The blockchain account book has the characteristics of decentralization and non-tamperability, which can ensure the authenticity and reliability of the data. The writing process needs to follow the writing rules of the blockchain, such as signature, verification, consensus and other steps to ensure the security and consistency of the data. After writing into the blockchain account book, verification and confirmation operations are required to ensure that the data has been correctly written and the blockchain network has reached a consensus. For example, if plastic recycling is divided into 4 nodes from processing, each node is assigned a digital identifier, the first node can be assigned a digital identifier 1, and the subsequent identifiers are assigned in sequence, that is, the fourth node is assigned a numerical identifier 4. Then, according to each digital identifier, different node information is assigned, and the node information of digital identifier 1 can be set to recycling, the node information of digital identifier 2 can be set to storage, the node information of digital identifier 3 can be set to transportation, and the node information of digital identifier 4 can be set to processing. Then the first correspondence between the digital identifier and the node information is constructed, that is, the first correspondence between digital identifier 1 and recycling. After the smart recycling station has classified and stored the plastics, the staff of the smart recycling station can contact the processing unit so that the processing unit can arrange vehicles to transport the plastics to the smart recycling station. The stored plastics will be transported to the corresponding processing unit for processing by the vehicle. When the vehicle arrives at the corresponding location, the relevant information of the vehicle must be verified to ensure that the transportation vehicle is correct.

[0056] Furthermore, how to trace the raw materials of the target finished product specifically includes: receiving a traceability request sent by a second user, the traceability request is used to request the raw materials of the target finished product to be traced; analyzing the target finished product to obtain the target traceability component; determining the second code corresponding to the target traceability component; judging whether the second code exists in the preset code table, the preset code table is the code corresponding to the plastic of the second intelligent recycling station, and the second intelligent recycling station is any station storing recycled plastics; when the second code exists in the preset code table, it is confirmed that the target traceability component comes from the second intelligent recycling station, and a prompt message is generated and sent to the second user. Specifically, the traceability request sent by the second user is received, and the second user is a staff member selling the target finished product. The traceability request may include identification information of the target finished product, such as product number, batch number, production date, etc. The server receives the traceability request sent by the second user. The target finished product is analyzed in detail to identify its components and raw materials. The analysis may involve disassembly, chemical analysis, physical testing and other methods. Identify the components or raw materials that need to be traced from the finished product. These components or raw materials should be related to recycled plastics and can be tracked by coding. According to the identification information of the target traceable component (such as model, batch, material, etc.), find the corresponding code in the records of the finished product manufacturing process. This code should be consistent with the code used by the target traceable component during the recycling and processing process. Access the preset code table, which contains the coding information of the corresponding plastics in the second intelligent recycling station. Make sure that the preset code table is up to date and contains all the data for the plastic coding of the second intelligent recycling station. Search the second code of the target traceable component in the preset code table. If a matching code is found, it means that the target traceable component comes from the second intelligent recycling station corresponding to the code. According to the result of the code matching, confirm the exact source of the target traceable component. Generate a prompt message based on the confirmed source information. The prompt message should clearly and concisely explain the source of the target traceable component and may contain other relevant information, such as recycling date, processing process, etc. The generated prompt message is sent to the second user. If the second code does not exist in the preset code table, it is necessary to obtain the table for the plastic coding of other intelligent recycling stations, and compare the second code with other code tables to find out which intelligent recycling station the target traceable component comes from.

[0057] In addition, after receiving the traceability request sent by the second user, the second user's authority needs to be verified to ensure that only authorized users can analyze the target finished product, including: obtaining the identity information corresponding to the second user, determining the target authority level according to the identity information; judging whether the target authority level exists in the preset authority table, and the preset authority table is the authority level corresponding to the target finished product that can be accessed; when the target authority level exists in the preset authority table, it is confirmed to analyze the target finished product. Specifically, when the second user attempts to make a traceability request or access the system, identity authentication is first required. Identity authentication can be performed through username and password, biometrics (such as fingerprint, facial recognition), mobile phone verification code, third-party authentication (such as OAuth), etc. Once the identity authentication is successful, the system will extract the user's identity information from the user database. Different authority levels are defined in advance, and these levels are usually associated with the user's identity information. For example, there may be different authority levels such as "ordinary user", "senior user", and "administrator". Based on the extracted user identity information, the system will search for the authority level that matches the user in the authority level definition. Since it has been confirmed that the second user is tracing the target finished product, it is necessary to determine whether the target permission level exists in the preset permission table, which contains the permission level information corresponding to the target finished product. The preset permission table should be updated regularly to ensure that it contains the latest permission levels and corresponding access rights. Search the preset permission table for records that match the target permission level. If a matching record is found, it indicates that the user has the permission to access the target finished product. Once it is confirmed that the user has the permission to access the target finished product, the system will allow the user to perform subsequent analysis operations.

[0058] Through the above method, the first plastic is first transported to the first location, and the first plastic is initially classified using a reference density liquid, which can automatically distinguish between plastics made of polyvinyl chloride (PVC) and non-PVC materials, reducing manual intervention and improving the efficiency and accuracy of classification. For plastics made of non-PVC materials, they are further processed by image recognition technology. After obtaining the target image, it is input into a preset image database for processing, so as to obtain more detailed classification results (third classification results and fourth classification results). Image recognition technology has the characteristics of high efficiency and accuracy, can process a large amount of data, and avoids the problem of easy errors in manual recording. In the entire classification process, the initial classification can clean the plastic products with a dirty appearance, and divide the cleaned plastic products into the first classification results and the second classification results, and then use image recognition to perform secondary classification on the plastics of the second classification results, thereby obtaining more detailed classification results, reducing the possibility of manual recording errors, and thus improving the accuracy of classification.

[0059] The present application also provides a processing system for recycling plastics. Figure 2This is a schematic diagram of a plastic recycling system provided in an embodiment of the present application. Figure 2 The system is a server, and the server includes a receiving unit 201, a processing unit 202 and a confirmation unit 203.

[0060] The receiving unit 201 receives a detection request sent by a first user, where the detection request is a request for classifying and detecting a material of a first plastic, where the first plastic is a plastic product recycled by a first smart recycling station; and obtains a target image corresponding to a second classification result.

[0061] The processing unit 202 transports the first plastic to a first location according to the detection request. The first location is an area for storing a reference density liquid, and the reference density liquid includes water. The first plastic is classified at the first location to obtain a first classification result and a second classification result. The first classification result is a plastic made of polyvinyl chloride, and the second classification result is a plastic made of non-polyvinyl chloride. The target image is input into a preset image database for processing to obtain a third classification result and a fourth classification result.

[0062] The confirmation unit 203 processes the first plastic according to the classification result.

[0063] In a possible implementation, the receiving unit 201 is used to obtain a digital identifier corresponding to the current node of the second plastic; the processing unit 202 is used to obtain the current node information according to the digital identifier; establish a first corresponding relationship between the current node information and the digital identifier, and write the first corresponding relationship into the blockchain ledger.

[0064] In a possible implementation, the receiving unit 201 is used to obtain a digital identifier corresponding to the current node of the second plastic; the processing unit 202 is used to obtain the current node information according to the digital identifier; establish a first corresponding relationship between the current node information and the digital identifier, and write the first corresponding relationship into the blockchain ledger.

[0065] In a possible implementation, the receiving unit 201 is used to obtain a digital identifier corresponding to the current node of the second plastic; the processing unit 202 is used to obtain the current node information according to the digital identifier; establish a first corresponding relationship between the current node information and the digital identifier, and write the first corresponding relationship into the blockchain ledger.

[0066] In one possible implementation, the receiving unit 201 is used to receive a traceability request sent by a second user, where the traceability request is used to request raw material traceability for a target finished product; the processing unit 202 is used to analyze the target finished product to obtain a target traceability component; determine a second code corresponding to the target traceability component; determine whether the second code exists in a preset coding table, where the preset coding table is a code corresponding to plastics in a second smart recycling station, and the second smart recycling station is any station for storing recycled plastics; the confirmation unit 203 is used to confirm that the target traceability component comes from the second smart recycling station when the second code exists in the preset coding table, and generate a prompt message to send to the second user.

[0067] In one possible implementation, the receiving unit 201 is used to obtain identity information corresponding to the second user and determine the target authority level based on the identity information; the processing unit 202 is used to determine whether the target authority level exists in a preset authority table, and the preset authority table is the authority level corresponding to the accessible target finished product; the confirmation unit 203 is used to confirm the analysis of the target finished product when the target authority level exists in the preset authority table.

[0068] In a possible implementation, the processing unit 202 is used to obtain the plastic corresponding to the second material based on the first classification result, the third classification result, and the fourth classification result, where one classification result corresponds to one second material; the receiving unit 201 is used to obtain the second weight of the plastic corresponding to the second material; the processing unit 202 is used to send the second weight to a preset plastic database, so that the preset plastic database updates the inventory corresponding to the second material according to the second weight.

[0069] It should be noted that: when the system provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0070] The present application also discloses an electronic device. Figure 3 , Figure 3 The electronic device 300 may include: at least one processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

[0071] The communication bus 302 is used to realize the connection and communication between these components.

[0072] The user interface 303 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0073] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0074] Among them, the processor 301 may include one or more processing cores. The processor 301 uses various interfaces and lines to connect various parts in the entire server, and executes various functions of the server and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Optionally, the processor 301 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The processor 301 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application requests; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 301, and it can be implemented separately through a chip.

[0075] Among them, the memory 305 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area. Instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc. can be stored; the data storage area can store data involved in the above-mentioned various method embodiments, etc. The memory 305 can also be optionally at least one storage device located away from the aforementioned processor 301.

[0076] like Figure 3 As shown, the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an application program for processing plastic recycling.

[0077] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain data input by the user; and the processor 301 can be used to call the application for plastic recycling processing stored in the memory 305. When executed by one or more processors, the electronic device executes one or more of the methods described in the above embodiments.

[0078] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present application.

[0079] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0081] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0082] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0083] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: various media that can store program codes, such as USB flash drives, mobile hard drives, magnetic disks or optical disks.

[0084] The above is only an exemplary embodiment of the present disclosure and cannot be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field that are not recorded in the present disclosure.

Claims

1. A method for recycling plastics, characterized in that: Applied in a server, the method comprises: receiving a detection request sent by a first user, wherein the detection request is a request for classifying and detecting a material of a first plastic, wherein the first plastic is a plastic product recycled by a first smart recycling station; transporting the first plastic to a first location according to the inspection request, wherein the first location is an area where a reference density liquid is stored, and the reference density liquid includes water; Classifying the first plastic at the first location to obtain a first classification result and a second classification result, wherein the first classification result is plastic made of polyvinyl chloride, and the second classification result is plastic not made of polyvinyl chloride; Obtaining a target image corresponding to the second classification result; Inputting the target image into a preset image database for processing to obtain a third classification result and a fourth classification result; The first plastic is processed according to the classification result.

2. The method according to claim 1, characterized in that After processing the first plastic according to the classification result, the method further includes: Get the digital identifier corresponding to the current node of the second plastic; Acquire current node information according to the digital identifier; A first corresponding relationship between the current node information and the digital identifier is established, and the first corresponding relationship is written into the blockchain account book.

3. The method according to claim 2, characterized in that After establishing the first corresponding relationship between the current node information and the digital identifier and writing the first corresponding relationship into the blockchain account book, the method further includes: Obtaining a target recycling package, where the target recycling package is plastic that packages the first plastic corresponding to the classification result; Encoding the target recycling package according to a preset rule to obtain a first code; A second corresponding relationship between the first code and the target recycling package is established, and the second corresponding relationship is written into the blockchain account book.

4. The method according to claim 3, characterized in that The encoding of the target recovery package according to a preset rule to obtain a first code specifically includes: Obtaining a first weight and a first material, wherein the first weight is the weight corresponding to the target recycling package, and the first material is the material of the plastic corresponding to the target recycling package; The target recycling bag is encoded according to the first weight, the first material and the second location to obtain the first code, and the second location is the location corresponding to the first smart recycling station.

5. The method according to claim 3, characterized in that: After establishing a second corresponding relationship between the first code and the target recycling package and writing the second corresponding relationship into the blockchain account book, the method further includes: receiving a traceability request sent by a second user, wherein the traceability request is used to request raw material traceability for a target finished product; Analyzing the target finished product to obtain a target traceability component; Determine a second code corresponding to the target traceability component; Determine whether the second code exists in a preset code table, where the preset code table is a code corresponding to the plastic of the second smart recycling station, and the second smart recycling station is any station for storing recycled plastics; When the second code exists in the preset code table, it is confirmed that the target traceability component comes from the second smart recycling bin, and a prompt message is generated and sent to the second user.

6. The method according to claim 5, characterized in that After receiving the traceability request sent by the second user, the method further includes: Obtaining identity information corresponding to the second user, and determining a target permission level according to the identity information; Determine whether the target permission level exists in a preset permission table, where the preset permission table is the permission level corresponding to the target finished product that can be accessed; When the target authority level exists in the preset authority table, it is confirmed to analyze the target finished product.

7. The method according to claim 1, characterized in that After processing the first plastic according to the classification result, the method further includes: Obtaining plastic corresponding to the second material according to the first classification result, the third classification result, and the fourth classification result, wherein one classification result corresponds to one second material; Obtaining a second weight of the plastic corresponding to the second material; The second weight is sent to a preset plastic database so that the preset plastic database updates the inventory corresponding to the second material according to the second weight.

8. A processing system for recycling plastics, characterized in that: The system is a server, and the server comprises a receiving unit (201), a processing unit (202) and a confirmation unit (203); The receiving unit (201) receives a detection request sent by a first user, wherein the detection request is a request for classifying and detecting a material of a first plastic, wherein the first plastic is a plastic product recycled by a first smart recycling station; Obtaining a target image corresponding to the second classification result; The processing unit (202) transports the first plastic to a first location according to the detection request, the first location being an area for storing reference density liquid, the reference density liquid comprising water; classifies the first plastic at the first location to obtain a first classification result and a second classification result, the first classification result being a plastic made of polyvinyl chloride, and the second classification result being a plastic not made of polyvinyl chloride; and inputs the target image into a preset image database for processing to obtain a third classification result and a fourth classification result; The confirmation unit (203) processes the first plastic according to the classification result.

9. An electronic device, characterized in that: The electronic device (300) comprises a processor (301), a memory (305), a user interface (303) and a network interface (304), wherein the memory (305) is used to store instructions, the user interface (303) and the network interface (304) are used to communicate with other devices, and the processor (301) is used to execute the instructions stored in the memory (305) so that the electronic device (300) executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 7 is executed.

Images