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Graph theory-based low-carbon product design method

A design method and product technology, applied in computing, instruments, data processing applications, etc., can solve problems such as inability to effectively support low-carbon design of electromechanical products, lack of low-carbon design methods for electromechanical products, etc.

Inactive Publication Date: 2015-04-08
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research mainly focuses on the estimation of carbon footprint, and most of the situations considered are relatively simple, which cannot effectively support the low-carbon design of electromechanical products. There is a lack of a general low-carbon design method for electromechanical products that is oriented to the entire life cycle of products.

Method used

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  • Graph theory-based low-carbon product design method

Examples

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Embodiment 1

[0073] see figure 1 with figure 2 , this low-carbon product design method based on graph theory is characterized by the design method of electromechanical products based on "graph theory": through the analysis of five stages of the product life cycle such as raw material acquisition, manufacturing, transportation, use, recycling and disposal , respectively obtain the optional solutions and corresponding carbon footprints of each stage of the product life cycle, each optional solution in each stage is used as a node, and according to the order of the product life cycle, establish a connection between adjacent upstream and downstream nodes, And mark the corresponding carbon footprint information as the weight, so as to establish the product low-carbon design space based on the weighted directed graph of the above five stages, and use the relevant shortest path algorithm in graph theory to solve the shortest path, then the scheme set corresponding to the shortest path is It is ...

Embodiment 2

[0111] This embodiment is basically the same as Embodiment 1, and the special features are as follows: the carbon footprint calculation corresponding to each scheme in each stage is based on the life cycle definition, and after analyzing the product carbon footprint, the product carbon emissions are divided into raw materials covering the entire life cycle There are five stages: acquisition stage, manufacturing stage, transportation stage, use stage and recycling stage, and a product life cycle carbon footprint calculation model is constructed:

[0112] (10)

[0113] In the formula: It is the carbon emission of the whole life cycle of the product; Carbon emissions in the stage of product raw material acquisition; Carbon emissions in the manufacturing stage of the product; is the carbon emissions during product transportation; Carbon emissions in the product use stage; Carbon emissions in the product recycling process;

[0114] (I) Carbon emi...

Embodiment 3

[0130] figure 1 is a weighted directed graph of the design space of this low-carbon product design method based on graph theory (all edges have weights).

[0131] This embodiment takes the low-carbon design of a cold heading machine as an example. The cold heading machine is mainly for heading, and is an equipment for batch production of fasteners such as nuts and bolts. This section takes the cold heading machine as an example, applies the low-carbon design method of electromechanical products proposed by the present invention, and realizes the optimal scheme of carbon emission in the whole life cycle of the cold heading machine. The low-carbon design of cold heading machine is carried out according to the following steps:

[0132] The first step is to create a directed graph;

[0133] 1. Node assumptions

[0134] Set the whole life cycle of cold heading machine, that is, the stages of raw material acquisition, manufacturing, transportation, use, recycling / processing are S...

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Abstract

The invention relates to a graph theory-based low-carbon product design method. The method comprises the following steps: analyzing the five stages of raw material collection, manufacturing, transportation, use and recovery treatment in a whole product life cycle on the basis of a graph theory to acquire selectable schemes and a corresponding carbon footprint of each stage at the later period of the whole product life cycle respectively; using each selectable scheme of each stage as a junction; establishing a connecting line between adjacent upstream and downstream junctions according to the sequence of the product life cycle; marking corresponding carbon footprint information as a weight in order to establish a low-carbon product design space based on a weighted directed graph of the five stages; and obtaining a shortest path by using a relevant shortest path algorithm in the graph theory, wherein a scheme set corresponding to the shortest path is a comprehensive design scheme with a lowest carbon footprint in the whole product life cycle. The method is suitable for low-carbon design of electromechanical products, and other design problems about the whole product life cycle can be solved.

Description

technical field [0001] The invention belongs to a method for low-carbon design of mechanical and electrical products, in particular to a method for low-carbon design of products based on graph theory. Background technique [0002] With the qualitative transformation of the development model, the huge challenge of the greenhouse effect, and people's pursuit of high-quality life, low-carbon, a new concept term that includes development concepts, natural harmony models, and future quality of life, has quickly stepped onto the stage of history. The qualitative transformation of the development model, the huge challenge of the greenhouse effect and people's pursuit of high-quality life, a new concept term including the development concept, natural harmony model and future quality of life: low carbon, quickly stepped onto the stage of history. [0003] Product carbon footprint refers to the total greenhouse gas emissions of a product in its entire life cycle, and is one of the imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/00
CPCG06Q10/047G06Q50/00
Inventor 何斌王军黄山
Owner SHANGHAI UNIV