CN102507859B - Method and device for determining substance content in product - Google Patents

Abstract

The embodiment of the invention discloses a method and a device for determining the content of a substance in a product, which are used for performing convolution component calculation and counting the material composition and content of the product or a component as well as the substance composition and content of the product or the component. The method provided by the embodiment of the invention comprises the following steps: the method comprises the steps of obtaining a material composition table of a part according to product composition information in a database, adjusting a standard material composition table into a format of a combined material composition table, classifying substances, carrying out convolution calculation on the weight of each substance in each part and the total weight of the part according to the type, the weight and the content of the substance, calculating the content of each material in the part according to the arithmetic mean value of the weight of each material in each part and the total weight of the part, carrying out convolution calculation on the weight of each material in the part, multiplying the weight and the content of each material and substance of each part by the number of the part respectively, and carrying out convolution calculation on the component of the product material and the component composition of the product substance.

Description

A method and device for determining the content of a substance in a product

technical field

The invention relates to the field of information technology, in particular to a method and device for determining the content of substances in a product.

Background technique

The impact of products or parts on the environment has received more and more attention. In order to cope with the current environmental regulations involving electronic and electrical equipment and similar environmental regulations in the future, the requirements for product ingredients and usage ratios need to be accurately counted. Material composition and its content. Since the same component in the product may be supplied by multiple suppliers, it involves the problem of convolution algorithm, that is, how to convolve materials with different material components provided by different suppliers into the material components of the materials used in the product Different convolution algorithms will give different convolution results.

In the prior art, the material composition information of the product is calculated by averaging, including simple averaging, that is, the material composition information of the materials used in the product is obtained by averaging the material composition of different suppliers, or Calculate the weighted average, that is, by setting different weights, the material composition data provided by different suppliers are weighted and averaged to obtain the material composition information of the part, so as to judge whether the product meets the requirements of various environmental protection laws and regulations.

However, in the above-mentioned prior art, when the material composition tables of the standard material composition table and the combined material composition table exist at the same time, the convolution calculation cannot be performed, and the unqualified materials that may have been originally unqualified after the convolution calculation are performed. The content calculation results of some restricted substances are too low to draw qualified conclusions, leading to wrong conclusions that meet the requirements of various environmental protection laws and regulations.

Contents of the invention

The embodiment of the present invention provides a method and device for determining the content of substances in a product, which can be calculated using the convolution algorithm when the product supplier provides any one of the standard material composition table or the combined material table Get the correct result for the content of the substance in the product.

The method for determining the content of substances in a product provided by an embodiment of the present invention includes: reading product composition information in a database, and analyzing product component information in the product composition information to obtain a material composition table of product components in the database; Adjust the standard material composition table in the material composition table to the format of the composite material composition table; classify the substances in the composite material composition table; according to the type, weight and content of the substances in the composite material composition table, volume Calculate the weight of each substance in each component and the total weight of the component; calculate the content of each material in the component according to the arithmetic mean of the weight of each material in each component and the total weight of the component, and perform convolution calculation to obtain The weight of each material in the component; the weight and content of the material and substance of each component are multiplied by the number of components, and the convolution calculation is performed to obtain the composition of the product material and the composition of the product substance.

The device for determining the content of substances in a product provided by an embodiment of the present invention includes: a reading unit for reading product composition information in a database, and reading a material composition table for product parts in the database; an analysis unit for For analyzing the product component information in the product composition information; the adjustment unit is used to adjust the standard material composition table in the material composition table to the format of the combined material composition table; the classification unit is used to convert the combined material composition table Classify the substances in the composition; the calculation unit is used to calculate the weight of each substance in each component and the total weight of the component according to the type, weight and content of the substance in the combined material composition table; according to the weight of each material in each component The arithmetic mean value and the total weight of the parts are calculated to obtain the content of each material in the part, and the convolution calculation is performed to obtain the weight of each material in the part; the weight and content of the materials and substances of each part are respectively multiplied by the part The quantity, the convolution calculation obtains the composition of the product material and the composition of the product substance.

It can be seen from the above technical solutions that the embodiment of the present invention has the following advantages: the standard material composition table in the material composition table is adjusted to the format of the combined material composition table, and the convolution calculation is performed on the combined material composition table. According to the different types of substances, different weights and contents, convolution calculates the weight of each substance in the part and the total weight of the part. According to the total weight of the part and the arithmetic mean of the material weight in each part, the volume Finally, the weight and content of the material and substance of the component are multiplied by the number of components, and the convolution calculation is performed to obtain the material and material composition of the product, so that the material composition table and the combined material composition When the two formats of the material composition table exist at the same time, the convolution calculation is performed to obtain the composition of the substance in the parts of the product, the composition of the part and the composition of the product, and during the convolution calculation, the information of the maximum weight and maximum content of the substance Applied to the convolution calculation of component components, it will not lead to wrong conclusions of qualified material components due to the reduction of harmful substance content after convolution calculation of unqualified components.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of a method for determining the content of substances in a product in an embodiment of the present invention;

2 is a schematic diagram of another embodiment of the method for determining the content of substances in a product in the embodiment of the present invention;

Fig. 3 is a schematic diagram of an embodiment of a device for determining the content of substances in a product in an embodiment of the present invention;

Fig. 4 is a schematic diagram of another embodiment of the device for determining the content of substances in a product in the embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides a method and device for determining the content of substances in a product, which is used to perform volume integral calculation when two formats of the material composition table and the composite material composition table exist at the same time, To accurately determine the material composition of the product, so as to accurately judge whether the product or component meets the requirements of various laws and regulations, and can also be used to count the material composition and content, material composition and content of the product or component.

Please refer to Fig. 1, an embodiment of the method for determining the content of substances in the product in the implementation of the present invention comprises:

101. Read the product composition information in the database;

In this embodiment, the product composition information is stored in the database. When receiving the command input by the user to calculate the product material composition, the processing system first obtains the product composition information from the database. The product composition information includes: Coding, hierarchy, quantity information.

The product composition information defines the component information used by the product, usually derived from the product structure list (BOM, Bill of Materail) containing component information. The BOM should include the code, level, and quantity information of each component that makes up the product. In this embodiment, the BOM can be tables in various forms, stored in a database of a certain storage device, and the database is connected to the processing system of the product material composition algorithm of the embodiment, and is used to calculate the product or component in the convolution The BOM information can be obtained from the database when the material composition information of the

For example, the product PRODUCT100 is composed of three parts, Part1, Part2 and Part3, and the composition of PRODUCT100 is shown in the following table:

name Hierarchy quantity PRODUCT100 1 1 Part1 2 1 Part2 2 1 Part3 2 1

102. Analyze the product component information in the product composition information, and read the material composition table of the product components in the database;

The product composition information should include the code, level, and quantity information of each component that makes up the product. Based on this information, read the material composition table of each component that makes up the product in the database.

The database storing the material composition table of each component and the database storing BOM in step 101 can both be set on the same memory, or can be set on different memories, and the memory and the computer-controlled processing system can exist independently of each other.

103. Adjust the standard material composition table in the material composition table to the format of the combined material composition table;

Material composition tables can be divided into two types: standard material composition tables and combined material composition tables. The format of the standard material composition table is to list in detail which sub-parts (sub-parts) the component is composed of (sub-parts can have multiple layers), which materials each sub-part is composed of, and which substances each material is composed of; the combination The format of the material composition table does not distinguish between sub-parts. It only lists the types of materials and substances contained in the parts and their respective contents. There is no corresponding relationship between materials and substances. Usually, due to reasons such as workload or confidentiality, some suppliers provide standard material composition tables, while some suppliers provide combined material composition tables. The standard material composition tables need to be adjusted to composite material composition tables, and the combined material composition tables are not adjusted.

104. Classify the substances in the composite material composition table;

In the combined material composition table, different types of substances have different convolution algorithms. Therefore, it is necessary to classify the substances, and perform convolution algorithms according to different types of substances, and different results will be obtained.

105. According to the type, weight and content of the substance in the composition table of the combined material, the weight of each substance in the component and the total weight of the component are calculated by convolution;

Different types of substances have different standards for convolution calculation weight and content, and the total weight of parts is also determined by the convolution weight and content of substances with stricter standards. The weight of the substance in the part and the total weight of the part.

106. According to the arithmetic mean of the weight of each material in each part and the total weight of the part, calculate the content of each material in the part, and calculate the weight of each material in the part through convolution calculation;

The material in the part is composed of substances. According to the arithmetic mean of the weight of each material in each part and the total weight of the part, the content of each material in the part is calculated, and the weight of each material in the part is calculated by convolution.

In this embodiment, the convolution calculation of all material types and their contents adopts the arithmetic mean convolution calculation, but the convolution weight of the material needs to be adjusted in equal proportions according to the weight of various materials and the total weight of parts or products.

107. Multiply the weight and content of the material and substance of the component by the quantity of the component respectively, and perform convolution calculation to obtain the material and substance composition of the product.

According to the weight and content of the material and the weight and content of the substance obtained through the convolution calculation in the preceding steps, multiply the weight and content of the substance by the number of components respectively, and the convolution calculation obtains the composition of each material and each material component of the entire product.

In this embodiment, the standard material composition table in the material composition table is adjusted to the format of the combined material composition table, and the convolution calculation is performed on the combined material composition table. First, the substances in it are classified. According to the different types of substances, the weight The weight of each substance in the component and the total weight of the component are calculated by convolution. According to the total weight of the component and the arithmetic mean of the weight of the material in each component, the weight of the material in the component is calculated by convolution, and finally , multiply the material and substance weight and content of the parts by the number of parts respectively, and calculate the material and substance composition of the product through convolution calculation, so that when the two formats of the material composition table and the composite material composition table exist at the same time , to perform convolution calculation to obtain the composition of substances in the parts of the product, the composition of the parts and the composition of the product, and in the convolution calculation, the information of the maximum weight and maximum content of the substance is applied to the convolution calculation of the component components. Due to the reduction of harmful substance content after unqualified parts are calculated by convolution, a wrong conclusion of qualified substance composition can be drawn.

For ease of understanding, the method for determining the content of substances in the product in the embodiment of the present invention will be described in detail below with another embodiment, please refer to Figure 2, the method for determining the content of substances in the product in the embodiment of the present invention An example of includes:

201 to 202. For specific content of steps 201 to 202 in the embodiment of the present invention, please refer to the content described in the foregoing embodiment shown in FIG. 1 , and details are not repeated here.

203. Adjust the standard material composition table in the material composition information table to the format of the combined material composition table;

Material composition tables can be divided into two types: standard material composition tables and combined material composition tables. The format of the standard material composition table is to list in detail which sub-parts (sub-parts) the component is composed of (sub-parts can have multiple layers), which materials each sub-part is composed of, and which substances each material is composed of; the combination The format of the material composition table does not distinguish between sub-parts. It only lists the types of materials and substances contained in the parts and their respective contents. There is no corresponding relationship between materials and substances. Usually, due to reasons such as workload or confidentiality, some suppliers provide standard material composition tables, while some suppliers provide combined material composition tables. It is necessary to adjust the standard material composition table The weight of the same substance is combined, and the corresponding relationship between substances and materials is not shown in the table.

Generally, a component is provided by multiple suppliers, and the materials and substances used in the components provided by different suppliers are usually not the same, and a certain component used in a specific product can only be supplied by many suppliers. Provided by a supplier of , then when counting products composed of multiple parts, the material composition information of a part is convoluted by the material composition information provided by different suppliers, and then convolved by the material composition information of each part Material composition information for the entire product.

In this embodiment, it is assumed that the product consists of three parts, Part1, Part2 and Part3, and each part is provided by three suppliers, and these three suppliers are A1, B1, and C1 respectively.

1. The following is the material composition list provided by suppliers A1, B1, and C1 for Part1 of the product:

Material composition list provided by supplier A1:

Material composition list provided by supplier B1:

Material composition list provided by supplier C1:

The material composition tables of suppliers A1 and B1 above are standard material composition tables, and the material composition tables of supplier C1 are combined material composition tables. Therefore, the material composition tables of suppliers A1 and B1 are adjusted to composite material composition tables, namely , combine the weights of the same substance in the material composition table, and do not display the corresponding relationship between substances and materials in the table, and the format of the material composition table of supplier C1 does not need to be adjusted.

The material composition list of supplier A1 after adjusting the format:

The material composition list of supplier B1 after adjusting the format:

2. The following is the material composition list provided by suppliers A2, B2, and C2 for Part2 of the product:

Material composition list provided by supplier A2:

Material composition list provided by supplier B2:

Material composition list provided by supplier C2:

In the above material composition tables, the material composition tables of suppliers A2, B2 and C2 are all standard material composition tables, which need to be adjusted to combined material composition tables.

The material composition list of supplier A2 after adjusting the format:

The material composition list of supplier B2 after adjusting the format:

The material composition list of supplier C2 after adjusting the format:

3. The following is the material composition list provided by suppliers A3, B3, and C3 for Part3 of the product:

Material composition list provided by supplier A3:

Material composition list provided by supplier B3:

Material composition list provided by supplier C3:

The format of the material composition table of the above suppliers A3, B3 and C3 is the format of the composite material composition table and no adjustment is required.

204. Divide the substances in the composition table of each composite material into the first category of substances, the second category of substances and the third category of substances;

The substances in the composite material composition table are divided into the first category substances, the second category substances, and the third category substances. Among them, the first category substances are conformity judgment substances, the second category substances are concerned substances, and the third category substances are Substances other than those in the first category and the second category.

In this embodiment, substances can be divided into three categories according to the purpose of determining the composition of product materials: substances for compliance judgment refer to substances prohibited or restricted in production by laws and regulations; substances that are toxic and harmful to the body or the environment; Concerned about the substance SVHC (Substances of Very High Concern) and recyclable precious metals, and other substances except the first two types of substances. Among them, the substances used in the compliance judgment are mainly used to judge whether the substances used in the product meet the requirements of various laws and regulations on the use of substances. Typical requirements include the EU’s RoHS directive and REACH regulations; substances of concern are not used for compliance judgments , but usually the use of such substances has received more attention than other substances, such as the SVHC clearly stipulated in the REACH regulations, and the evaluation of the recycling value of the product when it is used for recycling in applications, such as The recycling value of precious metals; other substances refer to the types of substances other than the substances used for conformity judgment and substances of concern.

In the example in step 203, in the material composition table of Part1, among the material composition provided by supplier A1, S1, S2, and S3 are compliance judgment substances, S3, S4 are substances of concern, and S5～S8 are other types of substances .

205. According to the type, weight and content of the substance in the composition table of the combined material, the weight of each substance in the component and the total weight of the component are calculated by convolution;

A product can be composed of multiple parts. Specifically, in a certain part, the first category of substances is used to judge whether the substances in the product meet the requirements of various laws and regulations on the use of substances, which are usually prohibited or restricted by laws and regulations. Toxic and harmful substances, so when calculating the weight and content of such substances, the standards are relatively strict, so the convolution calculation method used is different from the second and third categories of substances.

Therefore, the convolution weight and content of the first type of substance are also valued and calculated according to stricter standards than the other two types of substances. In the same way, the total weight of the components is also determined by the convolution weight and content of the first type of substance definite.

According to the maximum weight and maximum content of the first type of substance, the convolution calculates the total weight of the part, and according to the arithmetic mean of the weight of the second type of substance, the convolution calculates the weight of the second type of substance in the part, according to the third type The arithmetic mean of the weight of the substance, the content of the first type of substance in the total weight of the part, the content of the second type of substance in the total weight of the part and the total weight of the part obtained by convolution calculation, the convolution calculation No. The weight of the three types of substances in the part. The specific algorithm is as follows:

1. Convolution algorithm for the weight of various substances in Part1 and the total weight of Part1:

(1) The calculation method of the first type of substance convolution to calculate the weight of the substance and the total weight of the parts:

First select the maximum weight value and maximum content value of each first-class substance in the material composition;

Specifically, in the part Part1 of this example, S1, S2, and S3 are the first type of substances, that is, compliance judgment substances.

Among them, the weight of S1 is the maximum weight of the parts Part1 supplied by the three suppliers. From the above table, it can be concluded that the weight of S1 in the part Part1 supplied by supplier A1 is 7.2 grams (g), and the supplier The weight of S1 substance in Part1 supplied by B1 is 1.6g, and the weight of S1 substance in Part1 supplied by supplier C1 is 4g. Therefore, the weight of S1 in Part1 after convolution of S1 is a maximum of 7.2g;

The content of S1 is the maximum value of the content in Part1 supplied by the three suppliers. From the above table, it can be concluded that the content of S1 in Part1 supplied by supplier A1 is 6%, and the content of S1 in Part1 supplied by supplier B1 The S1 content is 2%, and the S1 content in Part1 supplied by supplier C1 is 4%. Therefore, the S1 content in Part1 after convolution is a maximum of 6%.

The weight of S2 is the maximum weight of the parts Part1 provided by the three suppliers. From the above table, it can be concluded that the weight of S2 in the part Part1 provided by the supplier A1 is 6g, and that in the part Part1 provided by the supplier B1 The weight of the S2 substance is 3.2g, and the weight of the S2 substance in the part Part1 supplied by the supplier C1 is 7.5g. Therefore, the weight of the S2 in the part Part1 after convolution is a maximum of 7.5g;

The content of S2 is the maximum value of the content in Part1 supplied by the three suppliers. From the above table, it can be concluded that the content of S2 in Part1 supplied by supplier A1 is 5%, and the content of S2 in Part1 supplied by supplier B1 The S2 content is 4%, and the S2 content in Part1 supplied by supplier C1 is 7.5%. Therefore, the S2 content in Part1 after convolution is a maximum of 7.5%.

The weight of S3 is the maximum weight of the parts Part1 supplied by the three suppliers. From the above table, it can be concluded that the weight of S3 in the part Part1 supplied by the supplier A1 is 4.8g, and the part Part1 supplied by the supplier B1 The weight of S3 substance in is 4g, and the weight of S3 substance in Part1 supplied by supplier C1 is 3.5g. Therefore, the weight of S3 in Part1 after convolution is a maximum of 4.8g;

The content of S3 is the maximum value of the content in Part1 supplied by the three suppliers. The content of S3 in Part1 supplied by supplier A1 is 4%, and the content of S3 in Part1 supplied by supplier B1 is 5%. The content of S3 in part Part1 supplied by supplier C1 is 3.5%, therefore, the content of S3 in part Part1 after convolution is a maximum of 5%.

Then, according to the weight value and content value of each first-type substance selected, the total weight of the component is calculated by convolution;

The weight of the substance S1 after convolution is 7.2g, and the content is 6%. It can be calculated that the total weight W _S1 of the part Part1 is 120g, that is, W _S1 =7.2g/6%=120g;

The weight of the substance S2 after convolution is 7.5g, and the content is 7.5%. It can be calculated that the total weight W _S2 of the part Part1 is 100g, that is, W _S1 =7.5g/7.5%=100g;

The weight of the substance S3 after convolution is 4.8g, and the content is 5%. It can be calculated that the total weight _WS3 of the part Part1 is 96g, that is, _WS3 =4.8g/5%=96g.

Finally, the minimum value among the calculated total weights of the components is selected as the convolution weight of the component.

In this embodiment, the minimum total weight of parts calculated in W _S1 , _WS2 , and _WS3 is 96g of _WS3 . Therefore, in this embodiment, the total weight of Part1 calculated by convolution of the first type of material is 96g.

(2) The calculation method of the second type of material convolution to calculate the weight of the material:

The second category of substances is concerned substances. The concerned substances are not used for compliance judgment. The convolution algorithm adopts the arithmetic mean algorithm.

Substances S4 and S5 in Part1 are the second type of substances;

Among them, the weight of S4 is the average weight of the parts Part1 supplied by the three suppliers. The weight of the S4 material in the part Part1 supplied by the supplier A1 is 42g, and the weight of the S4 material in the part Part1 supplied by the supplier B1 is 26.4g. g, the weight of S4 in part Part1 supplied by supplier C1 is 34g, therefore, the weight of S4 in part Part1 after convolution is 34.13g;

The weight of the substance S5 is taken as the average weight of the parts Part1 supplied by the three suppliers. The weight of the S5 substance in the part Part1 supplied by the supplier A1 is 1.2g, and the weight of the S5 substance in the part Part1 supplied by the supplier B1 is 3.2g, the weight of S5 in part Part1 supplied by supplier C1 is 2.5g, therefore, the weight of S5 in part Part1 after convolution is 2.3g.

(3) The calculation method of the third type of material convolution to calculate the weight of the material:

The third category of substances are substances other than the first category and the second category of substances, and are not used for compliance judgments. Therefore, the convolution algorithm uses the arithmetic mean algorithm, and the content of this type of substance needs to be based on the above-mentioned first category. The content of the substance and the second class of substance and the total weight of the part are adjusted proportionally.

Substances S6-S8 in Part1 are the third category of substances;

The total weight of Part1 calculated according to the convolution of the first type of substance is 96g, of which the total weight of the first type of substances S1, S2, and S3 is 19.5g, and the total weight of the second type of substances S4, S5 is 36.43g, then The total weight of the third type of substance is the total weight of the part Part1 minus the total weight of the first type of substance and the second type of substance, and the result is 40.07g.

The specific content of the third category of substances should be distributed according to their respective proportions in the overall, where the weight of substance S6 is the average weight of substance S6 contained in Part1 supplied by three suppliers: Part1 supplied by supplier A1 The weight of S6 substance in Part1 is 18g, the weight of S6 substance in Part1 supplied by supplier B1 is 12.8g, and the weight of S6 substance in Part1 supplied by supplier C1 is 15.5g. Therefore, after convolution of S6, in Part1 The average weight of 15.43g;

The weight of substance S7 is the average value of the weight of S7 in part Part1 after the convolution of three suppliers. The weight of S7 in part Part1 supplied by supplier A1 is 10.8g, and the weight of S7 in part Part1 supplied by supplier B1 The weight is 12.8g, and the weight of S7 substance in Part1 supplied by supplier C1 is 10.5g, therefore, the average weight of S7 in Part1 after convolution is 11.37g;

The weight of substance S8 is taken as the average weight of S8 in part Part1 supplied by three suppliers. The weight of substance S8 in part Part1 supplied by supplier A1 is 30g, and the weight of substance S8 in part Part1 supplied by supplier B1 is 16g. , the weight of S8 substance in Part1 supplied by supplier C1 is 22.5g, therefore, the average weight of S8 in Part1 after convolution is 22.83g;

It can be seen that the average total weight of the third type of substance in part Part1 is 49.63g, then the content of S6 in the third type of substance is 31.09% (15.43g/49.63g), and the content of S7 in the third type of substance The content is 22.91% (11.37g/49.63g), and the content of S8 in the third type of substance is 46% ((22.83g/49.63g)), and the convolution total weight of the aforementioned third type of substance is 40.07g, so according to The proportion of the third type of substances S6, S7, and S8 can be calculated as the convolution weight of S6 is 12.46g (31.09%×40.07g), the convolution weight of S7 is 9.18g (22.91%×40.07g), S8 The convolution weight of is 18.43g (46%×40.07g).

2. Convolution algorithm for the weight of various substances in Part2 and the total weight of Part2:

(1) The calculation method of the first type of substance convolution to calculate the weight of the substance and the total weight of the parts:

First select the maximum weight value and maximum content value of each first-class substance in the material composition;

Specifically, in Part2 of this example, S21 is the first type of substance, that is, the compliance judgment substance.

Among them, the weight of S21 is the maximum weight of the parts Part2 supplied by the three suppliers. From the above table, it can be concluded that the weight of S21 in the part Part2 supplied by supplier A2 is 20g, and the weight of the components supplied by supplier B2 The weight of S21 substance in Part2 is 22.5g, and the weight of S21 substance in Part2 supplied by supplier C2 is 20g. Therefore, the weight of S21 in Part2 after convolution is the maximum value of 22.5g;

The content of S21 is the maximum value of the content of Part2 supplied by the three suppliers. From the above table, it can be concluded that the content of S21 in Part2 supplied by supplier A2 is 10%, and the content of S21 in Part2 supplied by supplier B2 The S21 content is 15%, and the S21 content in Part2 supplied by supplier C2 is 20%. Therefore, the S21 content in Part2 after convolution is a maximum of 20%.

Then, according to the weight value and content value of each first-type substance selected, the total weight of the component is calculated by convolution;

The first type of substance is only S21. Therefore, after convolution, the weight of substance S21 in Part2 is 22.5g, and the content is 20%. It can be calculated that the total weight W _S21 of part Part2 is 120g, that is, W _S21 = 22.5g /20% = 112.5 g.

Finally, the minimum value among the calculated total weights of the components is selected as the convolution weight of the component.

In this embodiment, there is only S21 in the part Part2, therefore, the total weight of the part Part2 calculated by the convolution calculation of the first type of substance is 112.5 g.

(2) The calculation method of the second type of material convolution to calculate the weight of the material:

Substance S22 in Part2 is the second type of substance;

The weight of substance S22 is taken as the average weight of S22 in part Part2 supplied by three suppliers, the weight of substance S22 in part Part2 supplied by supplier A2 is 30g, and the weight of substance S22 in part Part2 supplied by supplier B2 is 25g , the weight of S22 in part Part2 supplied by supplier C2 is 20g, therefore, the weight of S22 in part Part2 after convolution is 25g.

(3) The calculation method of the third type of material convolution to calculate the weight of the material:

Substance S23 in Part2 is the third type of substance;

The total weight of Part2 calculated according to the convolution of the first type of substance is 112.5g, in which the weight of the first type of substance S21 is 22.5g, and the weight of the second type of substance S22 is 25g, then the convolution of the third type of substance S23 The weight is the total weight of Part2 minus the total weight of the first type of substance and the second type of substance, and the result is 65g.

Since the third type of substance in Part2 is only S23, there is no need to adjust the convolution weight according to the content.

3. The weight of various substances in Part3 and the total weight convolution algorithm of Part3:

(1) The calculation method of the first type of substance convolution to calculate the weight of the substance and the total weight of the parts:

First select the maximum weight value and maximum content value of each first-class substance in the material composition;

Specifically, in Part3 of this example, S31 and S32 are the first type of substances, that is, compliance judgment substances.

Among them, the weight of S31 is the maximum weight of the parts Part3 provided by the three suppliers. From the above table, it can be concluded that the weight of S31 in the part Part3 provided by the supplier A3 is 20g, and the weight of the parts provided by the supplier B3 The weight of S31 substance in Part3 is 17g, and the weight of S31 substance in Part3 supplied by supplier C3 is 18g. Therefore, the weight of S31 in Part3 after convolution is a maximum of 20g;

The content of S31 is the maximum value of the content in Part3 supplied by the three suppliers. From the above table, it can be concluded that the content of S31 in Part3 supplied by supplier A3 is 13.33%, and the content of S31 in Part3 supplied by supplier B3 The S1 content is 14.17%, and the S31 content in Part3 supplied by supplier C3 is 20%. Therefore, the content of S31 in Part3 after convolution is a maximum of 20%.

The weight of S32 is the maximum weight of the parts supplied by the three suppliers. From the above table, it can be concluded that the weight of S32 in Part3 supplied by supplier A3 is 6g, and the weight of S32 in Part3 supplied by supplier B3 The weight of S32 substance is 9g, and the weight of S32 substance in Part3 supplied by supplier C3 is 5.4g. Therefore, the maximum weight of S32 in Part3 after convolution is 9g;

The content of S32 is taken as the maximum value of the content in Part3 supplied by the three suppliers. The content of S32 in Part3 supplied by supplier A3 is 4%, and the content of S32 in the components supplied by supplier B3 is 7.5%. The content of S32 in part Part3 supplied by supplier C3 is 6%, therefore, the content of S32 in part Part3 after convolution is a maximum of 7.5%.

Then, according to the weight value and content value of each first-type substance selected, the total weight of the component is calculated by convolution;

The weight of the substance S31 after convolution is 20g, and the content is 20%. It can be calculated that the total weight W _S31 of the part Part3 is 100g, that is, W _S31 =7.2g/6%=100g;

The weight of the substance S32 after convolution is 9g, and the content is 7.5%. It can be calculated that the total weight W _S32 of the part Part3 is 100g, that is, W _S32 =9g/7.5%=120g.

Finally, the minimum value among the calculated total weights of the components is selected as the convolution weight of the component.

In this embodiment, the minimum total weight of parts calculated in _WS31 and _WS32 is 100g of _WS31 , so in this embodiment, the total weight of Part3 calculated by convolution of the first type of material is 100g.

(2) The calculation method of the second type of material convolution to calculate the weight of the material:

Algorithm using the arithmetic mean.

Substances S33 and S34 in Part3 are the second type of substances;

The weight of S33 is the average weight of the parts Part3 supplied by the three suppliers. The weight of S33 in Part3 from supplier A3 is 22g, and the weight of S33 in Part3 from supplier B3 is 26.4 g, the weight of S33 in part Part3 supplied by supplier C3 is 20g, therefore, the weight of S33 in part Part3 after convolution is 22.8g;

The weight of substance S34 is the average weight of the parts Part3 supplied by the three suppliers. The weight of the substance S34 in the part Part3 supplied by supplier A3 is 10g, and the weight of the substance S34 in the part Part3 supplied by supplier B3 is 12g. , the weight of S34 in part Part3 supplied by supplier C3 is 8g, therefore, the weight of S34 in part Part3 after convolution is 10g.

(3) The calculation method of the third type of material convolution to calculate the weight of the material:

The third category of substances are substances other than the first category and the second category of substances, and are not used for compliance judgments. Therefore, the convolution algorithm uses the arithmetic mean algorithm, and the content of this type of substance needs to be based on the above-mentioned first category. The content of the substance and the second class of substance and the total weight of the part are adjusted proportionally.

Substances S35 and S36 in Part3 belong to the third category of substances;

The total weight of the part Part3 calculated according to the convolution of the first type of substances is 100g, of which the total weight of the first type of substances S31 and S32 is 29g, the total weight of the second type of substances S33 and S34 is 32.8g, then the third type The total weight of the substance is the total weight of the part Part3 minus the total weight of the first type of substance and the second type of substance, and the result is 38.2g.

The specific content of the third category of substances should be distributed according to their respective proportions in the overall, where the weight of substance S35 is the average weight of substance S35 contained in Part3 supplied by three suppliers: Part3 supplied by supplier A3 The weight of S35 in Part3 is 42g, the weight of S35 in Part3 from supplier B3 is 28g, and the weight of S35 in Part3 from supplier C3 is 18.6g. Therefore, after convolution of S35, the weight of S35 in Part3 The average weight is 29.53g;

The weight of substance S36 is the average of the weight of S36 in part Part3 after the convolution of three suppliers. The weight of substance S36 in part Part3 supplied by supplier A3 is 50g, and the weight of substance S36 in part Part3 supplied by supplier B3 is 27.6g, and the weight of S36 in Part3 supplied by supplier C3 is 20g, therefore, the average weight of S36 in Part3 after convolution is 32.53g;

It can be seen that the average total weight of the third type of substance in Part3 is 62.06g, then the content of S35 in the third type of substance is 47.58% (29.53g/62.06g), and the content of S36 in the third type of substance The content is 52.42% (32.53g/62.06g), and the total convolution weight of the third type of substance is 38.2g. Therefore, according to the proportion of the third type of substances S35 and S36, the convolution weight of S35 can be calculated as 20.02 g (47.58% × 38.2g), the convolution weight of S36 is 9.18g (52.42% × 38.2g).

206. Convolution calculates the weight of each material in the component;

Usually, based on other purposes such as recycling, it is necessary to count the information on the composition of materials contained in products. Since only one of the parts provided by multiple suppliers can be selected when the parts are assembled into a product, the composition of the actually assembled product may be different, and the purpose of this statistics is not for judging conformity. Algorithms such as arithmetic mean are used for convolution. The convolution weight of each material needs to be adjusted proportionally according to the weight of each material and the total weight of the part or product.

1. Convolution algorithm for the total weight of each material in part Part1:

The weight of material M1 in part Part1 is the average weight of material M1 in part Part1 supplied by three suppliers. The weight of material M1 in part Part1 supplied by supplier A1 is 43.2g, and the weight of material M1 in part Part1 supplied by supplier B1 The material weight is 28g, and the material weight of M1 in Part1 supplied by supplier C1 is 35g. Therefore, the average weight of M1 in Part1 after convolution is 35.4g;

The weight of the material M2 in Part1 is the average weight of the M2 material in the part Part1 provided by the three suppliers. The weight of the M2 material in the part Part1 provided by the supplier A1 is 49.2g, and the M2 material in the part Part1 provided by the supplier B1. The weight is 30.4g, and the weight of M2 material in Part1 supplied by supplier C1 is 39.5g. Therefore, the average weight of M2 in Part1 after convolution is 39.7g;

The weight of the material M3 in Part1 is the average weight of the M3 material in the part Part1 provided by the three suppliers. The weight of the M3 material in the part Part1 provided by the supplier A1 is 27.6g, and the M3 material in the part Part1 provided by the supplier B1 The weight is 21.6g, and the weight of M3 material in part Part1 supplied by supplier C1 is 25.5g. Therefore, the average weight of M3 in part Part1 after convolution is 24.9g;

It can be seen that the average total weight of materials M1, M2, and M3 in Part1 is 100g, then, the content of M1 in each material of Part1 is 35.4% (35.4g/100g), and the content of M2 in each material of Part1 The content is 39.7% (39.7g/100g), and the content of M3 in the materials of Part1 is 24.9% (24.9g/100g). The total weight of Part1 calculated according to the convolution of the first type of material is 96g, so according to The proportion of materials M1, M2, and M3 can be calculated as 33.98g (35.4%×96g) for M1, 38.11g (39.7%×96g) for M2, and 38.11g (39.7%×96g) for M3. 23.9g (24.9% x 40.07g).

According to the above convolution method, the convolution results of the convolution material composition and material composition of Part1 obtained by the processing system are shown in the following table:

2. Convolution algorithm of the total weight of each material in part Part2:

Since part Part2 has only one material, M21, the weight of M21 is the total weight of part Part2 calculated based on the convolution of the first type of material in Part2, and the weight of M21 is 112.5g.

According to the above convolution method, the convolution results of the convolution material composition and material composition of Part2 obtained by the processing system are shown in the following table:

3. The total weight convolution algorithm of each material in Part3:

The weight of the material M31 in part Part3 is the average weight of the material M31 in the part Part3 provided by the three suppliers, the weight of the M31 material in the part Part3 provided by the supplier A3 is 30g, and the M31 material in the part part3 provided by the supplier B3 The weight is 20g, and the material weight of M31 in Part3 supplied by supplier C3 is 15g. Therefore, the average weight of M31 in Part3 after convolution is 21.67g;

The weight of the material M32 in part Part3 is the average weight of the M32 material in the part Part3 provided by the three suppliers, the weight of the M32 material in the part Part3 provided by the supplier A3 is 50g, and the M32 material in the part part3 provided by the supplier B3 The weight is 40g, and the M32 material in Part3 supplied by supplier C3 weighs 30g, so the average weight of M32 in Part3 after convolution is 40g;

The weight of the material M33 in part Part3 is the average weight of the material M33 in the part Part3 provided by the three suppliers, the weight of the M33 material in the part Part3 provided by the supplier A3 is 70g, and the M33 material in the part Part3 provided by the supplier B3 The weight is 60g, and the weight of M33 material in Part3 supplied by supplier C3 is 45g. Therefore, the average weight of M33 in Part3 after convolution is 58.33g;

It can be seen that the average total weight of materials M31, M32, and M33 in Part3 is 120g, then, the content of M31 in each material of Part3 is 18.06% (21.67g/120g), and the content of M32 in each material of Part3 The content is 33.3% (40g/120g), and the content of M33 in each material of Part3 is 48.61% (58.33g/120g). The proportion of M31, M32, and M33 can be calculated as the convolution weight of M31 is 18.06g (18.06%×100g), the convolution weight of M32 is 33.33g (33.33%×100g), and the convolution weight of M33 is 48.61 g (48.61% x 40.07g).

According to the above convolution method, the convolution results of the material composition and material composition of Part3 obtained by the processing system are shown in the following table:

207. Convolution calculation of each material component and each material component composition of the product.

Read the composition information of the product in the database, that is, the BOM, and then multiply the material composition and content of the parts Part1, Part2 and Part3 obtained by the convolution calculation, and the material composition and content by the quantity of each part, and then summarize and merge Homogeneous terms, get the convolution material composition and convolution material composition of the whole product.

In step 205, the convolution material composition and material composition of Part1 are shown in the following table:

The convolution material composition and material composition of Part2 are shown in the following table:

The convolution material composition and material composition of Part3 are shown in the following table:

Therefore, the convolution material composition and material composition of the entire product are shown in the following table:

In the embodiment of the present invention, the substances in the composite material composition table are divided into the first type of substance, the second type of substance, and the third type of substance, wherein the first type of substance is a substance for conformity judgment, and the second type of substance is a substance of concern Category III substances are substances other than the first category substances and the second category substances, and according to the maximum weight and maximum content of the first category substances, the total weight of the parts is calculated by convolution, and the conformity judgment substance The information of the maximum weight and maximum content of the product is applied to the convolution calculation of the component composition, and the content of the substance content of the conformity judgment will not be reduced after the convolution calculation of the unqualified parts containing the conformity judgment substance, which will cause a wrong conclusion that the substance composition is qualified. Since the maximum weight and maximum content are used to calculate the compliance judgment substances, and the weight and content of the compliance judgment substances are used to perform the convolution calculation of the total weight of the parts, the standards for substance content are more stringent, which is conducive to the production of more environmentally friendly products. .

For ease of understanding, the following describes the device for determining the content of substances in the product in the embodiment of the present invention, please refer to Figure 3, an embodiment of the device for determining the content of substances in the product in the implementation of the present invention includes:

The reading unit 301 is used to read the product composition information in the database, and read the material composition table of the product parts in the database;

An analysis unit 302, configured to analyze product component information in the product composition information;

An adjustment unit 303, configured to adjust the standard material composition table in the material composition table to the format of the combined material composition table;

A classification unit 304, configured to classify the substances in the combined material composition table;

Calculation unit 305, used to convolutely calculate the weight of each substance in the part and the total weight of the part according to the type, weight and content of the substance in the combined material composition table; according to the arithmetic mean of the weight of each material in the part and the total weight of the part Weight, calculate the content of each material in the component, and calculate the weight of each material in the component by convolution; multiply the components and content of each material and substance of the component by the quantity of each component, and calculate the weight of the product by convolution Each material composition and each substance composition.

In the embodiment of the present invention, the reading unit 301 reads the product composition information in the database, and the analysis unit 302 analyzes the product component information in the product composition information, and after obtaining the material composition of each component of the product, the reading unit 301 Read the material composition table of each component that makes up the product in the database, the adjustment unit 303 adjusts the standard material composition table in the material composition table to the format of the combined material composition table, and the classification unit 304 classifies the substances in the combined material composition table, The calculation unit 305 calculates the weight of each substance in the component and the total weight of the component according to the type, weight and content of the substance in the combined material composition table; according to the arithmetic mean of the weight of each material in the component and the total weight of the component, calculate Get the content of each material in the component, and calculate the weight of each material in the component by convolution calculation, multiply the material and material composition and content of the component by the quantity of each component, and calculate the material composition of the product by convolution and each substance composition, so that when the material composition table and the composite material composition table exist at the same time, the convolution calculation is performed to obtain the composition of the substance in the product's parts, the composition of the parts and the composition of the product, and in During the convolution calculation, the information of the maximum weight and maximum content of the substance is applied to the convolution calculation of the component composition, and the wrong conclusion of the qualified substance composition will not be drawn due to the reduction of the content of harmful substances after the convolution calculation of unqualified components.

For ease of understanding, the device for determining the content of substances in the product in this embodiment will be described in detail below with another embodiment, please refer to Figure 4, the device for determining the content of substances in the product in the embodiment of the present invention Another embodiment includes:

The reading unit 401 is used to read the product composition information in the database, and read the material composition table of the product parts in the database;

An analysis unit 402, configured to analyze product component information in the product composition information;

The adjustment unit 403 is used to adjust the standard material composition table in the material composition table to the format of the combined material composition table, by adding the weight values of the same substances in the standard material composition table, and adding the added weight value The method of writing into the substance weight table item corresponding to the substance name in the standard material composition table adjusts the material composition table;

The classification unit 404 is used to classify the substances in the composite material composition table, and classify the substances by dividing the substances in the composite material composition table into the first type of substance, the second type of substance and the third type of substance;

Calculation unit 405, used to convolutely calculate the weight of each substance in the component and the total weight of the component according to the type, weight and content of the substance in the composite material composition table, specifically, select the maximum weight of the first type of substance as the second The total weight of the first type of substance in the component, according to the maximum weight and maximum content of the first type of substance, the convolution calculation of the total weight of the component, that is, select the maximum weight and maximum content of the first type of substance in the component; according to The selected weight value and content value of the first type of substance are convolved to calculate the total weight of the component; the minimum value of the calculated total weight of the component is selected as the convolution weight of the component; the arithmetic mean of the weight of the second type of substance is calculated Value, as the total weight of the second type of substance in the part; the total weight of the part calculated according to the convolution, the content of the first type of substance and the second type of substance in the total weight of the part calculated by the convolution, and the second The arithmetic mean of the weights of the three types of substances, the convolution calculation of the total weight of the third type of substances in the parts, that is, the total weight of the parts obtained by the convolution calculation minus the sum of the first type of substances and the second type of substances in the parts, to obtain The weight of the third type of substance in the part; calculate the arithmetic mean of the weight of the third type of substance in the part; calculate the respective proportions of the third type of substance in the part according to the arithmetic mean of the weight of the third type of substance; Calculate the weight of the third type of substance in the component and multiply the respective proportions of the third type of substance in the component to obtain the convolution weight of the third type of substance in the component;

It is also used to calculate the content of each material in the part according to the arithmetic mean of the weight of each material in the part and the total weight of the part, and to obtain the weight of each material in the part through convolution calculation; and to calculate the weight of each material in the part; and the material composition and content, respectively multiplied by the quantity of each component, and the convolution calculation is performed to obtain the material composition and material composition of the product.

In the embodiment of the present invention, the classification unit 404 divides the substances in the composite material composition table into the first type of substance, the second type of substance, and the third type of substance, and the calculation unit 405 uses the maximum weight and maximum content of the first type of substance , the convolution calculation of the total weight of the part, the information of the maximum weight and maximum content of the conformity judgment substance (first class substance) is applied to the convolution calculation of the component composition, and it will not be caused by the unqualified part containing the conformity judgment substance After the convolution calculation, the content of the conformity judgment substance is reduced, resulting in an erroneous conclusion that the substance composition is qualified. Since the calculation of the conformity judgment substance uses the maximum weight and maximum content, and the weight and content of the conformity judgment substance are used to calculate the total weight of the component The volumetric calculation makes the standard of substance content more stringent, which is conducive to the production of more environmentally friendly products.

It should be noted that, for the process of implementing functions of each device in the embodiment of the invention shown in FIG. 3 and FIG. 4 above, please refer to the relevant content in the embodiment shown in FIG. 1 and FIG. 2 above, and will not be repeated here.

Those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, the above-mentioned storage medium It can be read-only memory, disk or CD-ROM, etc.

A method and device for determining the content of substances in products provided by the present invention has been described in detail above. For those skilled in the art, based on the ideas of the embodiments of the present invention, they will understand both the specific implementation and the scope of application. There are changes, and in summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A method for determining the content of a substance in a product, comprising: Read the product composition information in the database; Analyzing the product component information in the product composition information to obtain the material composition table of the product component in the database; Adjusting the standard material composition table in the material composition table to the format of the combined material composition table; Classify the substances in the composite material composition list; According to the type, weight and content of the substance in the composition table of the combined material, the weight of each substance in each component and the total weight of the component are calculated by convolution; According to the arithmetic mean value of the weight of each material in each component and the total weight of the component, the content of each material in the component is calculated, and the weight of each material in the component is calculated by convolution; The weight and content of the materials and substances of each component are multiplied by the number of components respectively, and the convolution calculation is performed to obtain the composition of the product material and the composition of the product substance; Wherein, the classification of the substances in the composite material composition table includes: Divide the substances in the composite material composition table into the first category substances, the second category substances and the third category substances; According to the type, weight and content of the substance in the composition table of the combined material, the convolution calculation of the weight of each substance in each component and the total weight of the component includes: Selecting the maximum weight of the first type of substance as the total weight of the first type of substance in the part; According to the maximum weight of the first type of substance and the maximum content of the first type of substance in the part, the convolution calculates the total weight of the part; calculating the arithmetic mean of the weights of substances of the second class as the total weight of said second class of substances in the component, and calculating the arithmetic mean of the weights of substances of the third class; According to the total weight of the parts calculated by convolution, the content of the first type of substance and the second type of substance in the total weight of the parts calculated by convolution, and the arithmetic mean of the weight of the third type of substance, the convolution calculation is described The total weight of the third class substances in the part; Among them, the first category of substances are conformity judgment substances, which are used to judge whether the substances used in products meet the requirements of various laws and regulations on the use of substances; The second category of substances is substances of concern, and the substances of concern are not used for compliance judgments, but the use of such substances has received more attention than other substances; The third type of substances are substances other than the first type of substances and the second type of substances. 2. method according to claim 1, is characterized in that, described standard material composition table in the material composition table, is adjusted to the format of combined material composition table comprising: Add the weight values of the same substance in the standard material composition table, and write the added weight value into the substance weight table item corresponding to the substance name in the combined material composition table. 3. The method according to claim 2, characterized in that, the first class of substances are toxic and hazardous substances that are prohibited or restricted from production, and the second class of substances are substances of very high concern SVHC and recyclable valuable substances. The third type of substances are substances other than the first type of substances and the second type of substances. 4. The method according to claim 1, characterized in that, according to the maximum weight and maximum content of the first type of substance, the total weight of the convolution calculation components includes: Select the maximum weight value and maximum content value of the first type of substance in the part; According to the selected weight value and content value of the first type of substance, the total weight of the component is calculated by convolution; The minimum value among the calculated total weights of the components is selected as the convolution weight of the component. 5. The method according to claim 1 or 4, characterized in that, according to the total weight of the parts calculated according to the convolution, the first type of material and the second type of material are included in the total weight of the parts calculated by the convolution content, and the arithmetic mean of the weight of the third type of substance, the convolution calculation of the total weight of the third type of substance in the part includes: Subtract the sum of the first type of substance and the second type of substance in the part from the total weight of the part calculated by convolution to obtain the weight of the third type of substance in the part; Calculate the arithmetic mean of the weight of the third class of substances in the part; Calculate the respective proportions of the third class substances in the parts based on the arithmetic mean of the weights; The calculated weight of the third type of substance in the component is multiplied by the respective proportions of the third type of substance in the component to obtain the convolution weight of the third type of substance in the component. 6. A device for determining the content of a substance in a product, characterized in that it comprises: The reading unit is used to read the product composition information in the database, and read the material composition table of the product parts in the database; An analysis unit, configured to analyze product component information in the product composition information; An adjustment unit, configured to adjust the standard material composition table in the material composition table to the format of the combined material composition table; Classification unit, used to classify the substances in the composite material composition list; The calculation unit is used to convolutely calculate the weight of each substance in each component and the total weight of the component according to the type, weight and content of the substance in the combined material composition table; according to the arithmetic mean of the weight of each material in each component and the weight of the component The total weight is calculated to obtain the content of each material in the component, and the convolution calculation is performed to obtain the weight of each material in the component; the weight and content of the material and substance of each component are multiplied by the number of components, and the convolution is calculated Obtain the composition of the product material and the composition of the product substance; Wherein, the classification unit is also used to divide the substances in the composite material composition table into the first type of substances, the second type of substances and the third type of substances; The calculation unit is also used to select the maximum weight of the first type of substance as the total weight of the first type of substance in the component; The calculation unit is also used to convolute the total weight of the component according to the maximum weight of the first type of substance and the maximum content of the first type of substance in the component; calculate the arithmetic mean of the weight of the second type of substance as The total weight of the second type of substance in the component; calculate the arithmetic mean of the weight of the third type of substance; calculate the total weight of the component according to the convolution, the first type of substance and the second type of substance in the convolution calculation The content in the total weight of the part, and the arithmetic mean of the weight of the third type of substance, convoluted to calculate the total weight of the third type of substance in the part; Among them, the first category of substances are conformity judgment substances, which are used to judge whether the substances used in products meet the requirements of various laws and regulations on the use of substances; The second category of substances is substances of concern, and the substances of concern are not used for compliance judgments, but the use of such substances has received more attention than other substances; The third type of substances are substances other than the first type of substances and the second type of substances. 7. The device of claim 6, wherein: The adjustment unit is configured to add the weight values of the same substance in the standard material composition table, and write the added weight value into the substance weight entry corresponding to the substance name in the combined material composition table In the way, adjust the material composition table. 8. The device of claim 6, wherein: The first category of substances are toxic and hazardous substances whose production is prohibited or restricted, the second category of substances are substances of very high concern SVHC and recyclable valuable substances, and the third category of substances are substances other than the first category and the second category other substances. 9. The apparatus of claim 6, wherein: The calculation unit is also used to select the maximum weight value and maximum content value of the first type of substance in the component; according to the selected weight value and content value of the first type of substance, the convolution calculates the total weight of the component. weight; select the minimum value among the calculated total weights of the parts as the convolution weight of the part. 10. The device according to claim 6 or 9, wherein the calculation unit is further configured to subtract the sum of the first type of substance and the second type of substance in the component from the total weight of the component obtained through convolution calculation , to obtain the weight of the third type of substance in the part; calculate the arithmetic mean of the weight of the third type of substance in the part; calculate the respective proportions of the third type of substance in the part according to the arithmetic mean of the weight of the third type of substance ; Multiply the calculated weight of the third type of substance in the component by the respective proportions of the third type of substance in the component to obtain the convolution weight of the third type of substance in the component.