Intelligent ecological city key technology evaluation method and system

Abstract

The invention provides an intelligent ecological city key technology evaluation method and system, and relates to the technical field of intelligent city management, and the method comprises the steps: building a technology library for intelligent ecological city planning construction and operation management; constructing a technology evaluation system based on the technology library, distributing different weights to a plurality of evaluation indexes in the technology evaluation system, and scoring each technology in the technology library through the evaluation indexes to obtain a comprehensive score of each technology; and according to the comprehensive score of each technology, screening out the technology meeting the condition as a key technology, and proposing an optimization scheme for planning construction and operation management of the intelligent ecological city through the key technology. According to the method, the problems that in the prior art, a theoretical system of intelligent ecological city construction is incomplete, an evaluation index system is not uniform, technical support is weak, and targeted and local guidance is lacked can be solved, and an optimization strategy is provided for urban ecological intelligent construction.

Description

Technical Field

[0001] The present invention relates to the field of smart city management technology, and in particular to a method and system for evaluating key technologies of a smart ecological city. Background Art

[0003] At present, the theoretical system of ecological city construction and management is still lacking, and the indicator system and design framework need to be further standardized, which cannot effectively support the needs of ecological city construction. At the same time, with the development of digital technology, the smartness of ecological cities is the first new trend at present. Domestic and foreign industry and academia have not formed a unified view on the evaluation dimension of the evaluation indicator system for smart city construction, and few studies focus on the potential and readiness of urban smart development, and their evaluation targets rarely involve ecological cities. China's smart ecological city construction is still in the exploratory stage, and the relevant technologies in planning, construction, management and maintenance are scattered and unsystematic, and the support for the construction of smart ecological cities is weak.

[0004] In order to solve the above problems and meet the needs of building smart ecological cities, many studies on urban ecological technologies can be seen in the public Chinese patent literature. For example, the patent with announcement number CN115375125A provides a technical algorithm suitable for urban ecological analysis. By obtaining sample data of different evaluation types within the urban area, it predicts the dynamic trend of ecological carrying capacity in the process of urban development to regulate planning schemes and optimize urban ecological development; the patent with announcement number CN110427529A provides an ecological evaluation system for environmental monitoring, which comprehensively detects the target environment through various information collection units and obtains evaluation information, and then makes an accurate ecological governance plan.

[0005] These existing patents supplement the application technology of smart eco-cities, increase the accuracy of urban ecological evaluation results, and promote the construction of smart eco-cities. However, there are many ecological analysis and evaluation methods that have been developed. In the actual construction process, a comprehensive analysis should be conducted based on the characteristics, scale, and research objectives of the research object to select appropriate technical methods. In addition, there are differences in construction conditions in various places. It is necessary to ensure that the selected technology meets the needs of urban development. The evaluation results and mechanisms cannot directly guide the regional ecological space planning and the design, development and construction of eco-cities. The indicator system at the national level is relatively broad and difficult to reflect local characteristics. These problems have become difficulties in the construction of smart eco-cities across the country. Summary of the invention

[0006] In order to solve the problems in the prior art of imperfect theoretical system of smart eco-city construction, inconsistent evaluation index system, weak technical support, and lack of targeted and local guidance, the embodiment of the present invention provides a method for evaluating key technologies of smart eco-city, which includes the following steps:

[0007] S1: Establish a technology library for smart ecological city planning, construction and operation management;

[0008] S2: Based on the technology library, a technology evaluation system is constructed, different weights are assigned to multiple evaluation indicators in the technology evaluation system, and each technology in the technology library is scored according to the evaluation indicators to obtain a comprehensive score for each technology;

[0009] S3: Based on the comprehensive score of each technology, select the technologies that meet the requirements as key technologies, and propose optimization solutions for the planning, construction, and operation management of smart ecological cities through the key technologies;

[0010] In step S2, the method of assigning different weights to multiple evaluation indicators in the technology evaluation system is as follows:

[0011] S21: X j Recorded as the jth evaluation index, the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V of the i-th technology to be evaluated ij ;

[0012] S22: Based on the normalized evaluation index V ij , and obtain the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j ;

[0013] S23: According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j .

[0014] Preferably, in S21, the normalized evaluation index V of the i-th technology to be evaluated is obtained. ij The method is as follows:

[0015] Judge X j Is it a positive or negative indicator?

[0016] If X j Is a positive indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for:

[0017]

[0018] If X j Is a negative indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for:

[0019]

[0020] Among them, X ij is the jth evaluation index value of the i-th technology to be evaluated, (X ij ) max and (X ij ) min They are the evaluation index values ​​X ij The maximum and minimum values ​​in , i = 1, 2, 3, ..., n, n is the number of technologies to be evaluated, j = 1, 2, 3, ..., m, m is the number of evaluation indicators.

[0021] Preferably, in S22, the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated is obtained. j The method is as follows:

[0022] S221: The normalized evaluation index V ij Eliminate zero values ​​and obtain the evaluation index after processing

[0023]

[0024] Among them, H is the preset parameter;

[0025] S222: Based on the evaluation index after the processing Calculate the contribution P of the jth evaluation index of the i-th technology to be evaluated ij ;

[0026] S223: Based on the contribution P ij , calculate the entropy value e of the jth evaluation index of the i-th technology to be evaluated j ;

[0027] S224: Based on the entropy value e j , calculate the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j .

[0028] Preferably, the contribution P of the jth evaluation indicator of the i-th technology to be evaluated is ij It is expressed as:

[0029]

[0030] Preferably, the entropy value e of the jth evaluation indicator of the i-th technology to be evaluated is j It is expressed as:

[0031]

[0032] in,

[0033] Preferably, the difference coefficient d of the jth evaluation indicator of the i-th technology to be evaluated is j It is expressed as:

[0034] d j =1-e j .

[0035] Preferably, the weight W of the jth evaluation indicator of the i-th technology to be evaluated is j It is expressed as:

[0036]

[0037] Wherein, j=1,2,3,...,m, and m is the number of evaluation indicators.

[0038] Preferably, in S1, the technology library consists of a technology catalog table and a technology business card, the technology catalog table includes technology name, technology source, technology readiness and keywords, and the technology business card includes technology R&D unit, corresponding output results and design parameters.

[0039] Preferably, the evaluation indicators include technical indicators, environmental indicators and economic indicators.

[0040] Based on the same inventive concept, an embodiment of the present invention further provides a smart eco-city key technology evaluation system, which is used to implement the above-mentioned smart eco-city key technology evaluation method, specifically including:

[0041] Technology library construction module, used to establish a technology library for smart ecological city planning, construction and operation management;

[0042] A comprehensive score calculation module is used to construct a technology evaluation system based on the technology library, assign different weights to multiple evaluation indicators in the technology evaluation system, and score each technology in the technology library according to the evaluation indicators to obtain a comprehensive score for each technology;

[0043] The method of assigning different weights to multiple evaluation indicators in the technical evaluation system is as follows:

[0044] X j Recorded as the jth evaluation index, the evaluation index X jPerform dimensionless processing to obtain the normalized evaluation index V of the i-th technology to be evaluated ij ;

[0045] Based on the normalized evaluation index V ij , and obtain the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j ;

[0046] According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j ;

[0047] The urban planning, construction and operation management optimization module is used to screen out qualified technologies as key technologies based on the comprehensive score of each technology, and propose optimization plans for the planning, construction and operation management of smart ecological cities through the key technologies.

[0048] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0049] The present invention constructs a technology library for planning, construction and operation management of smart ecological cities, conducts technical evaluation and technology optimization for the protection and utilization of different key resources in the city and the level of intelligence and livability, and forms a series of smart ecological city planning and construction technologies, laying the foundation for demonstration application in smart ecological city development projects, playing a leading and exemplary role in the construction and development of smart ecological cities, and providing reference opinions for the subsequent urban ecological intelligence construction in other regions. It has far-reaching promotion and application value for the construction of smart ecological cities across the country. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the implementation cases of the present invention or the technical solutions in the prior art, the following is a brief description of the drawings required for use in the embodiments. By referring to the drawings, the features and advantages of the present invention will be more clearly understood. The drawings are schematic and should not be understood as limiting the present invention in any way. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0051] Figure 1 This is a flow chart of a key technology evaluation method for a smart eco-city provided in Embodiment 1 of the present invention;

[0052] Figure 2 This is a block diagram of a key technology evaluation system for a smart eco-city provided in Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Embodiment 1

[0055] like Figure 1 As shown, an embodiment of the present invention provides a method for evaluating key technologies of a smart ecological city, the method comprising the following steps:

[0056] S1: Use field research, literature analysis, expert consultation and other methods to organize relevant urban planning and construction technologies that have been developed at home and abroad, as well as engineering cases that have been implemented in various cities, and establish a technology library for smart ecological city planning, construction and operation management;

[0057] S2: Based on the technology library, a technology evaluation system is constructed, different weights are assigned to multiple evaluation indicators in the technology evaluation system, each technology in the technology library is scored, and a comprehensive score of each technology is calculated by weighted average method;

[0058] S3: Based on the comprehensive score of each technology, select the technologies that meet the requirements as key technologies, and propose optimization solutions for the planning, construction, and operation management of smart ecological cities through the key technologies;

[0059] Furthermore, six major categories of technologies are classified and included in the technology library for smart ecological city planning, construction, operation and management, including:

[0060] The first is the technology for improving the ecological and economic value of land space resources. This technology is a method that comprehensively uses the geographic information system (GIS) and other advanced technical means to process and analyze complex spatial data and its related attribute data (such as basic geographic information, boundaries, land use and ownership data, etc.). With accurate data support, this technology can support the formulation of land use planning and the optimization of urban spatial layout to achieve the dual improvement of the ecological and economic value of land resources.

[0061] The second is the technology for improving the quality and efficiency of water resources and their ecological environment: This technology focuses on the refinement of water resources management and the comprehensive protection of the water environment. By processing and analyzing key data such as water quantity, water quality, investment benefits of water conservancy projects, development and utilization efficiency, and water sources, water systems and water quality protection, it provides data support for the scientific implementation of water resources management, the protection of water environment and the rational planning of water conservancy projects. Its goal is to improve the utilization efficiency of water resources and protect the health of the water ecosystem.

[0062] The third is the technology for the conservation and utilization of local biodiversity resources: This technology is a method that integrates biology, ecology and information technology, and aims to process and analyze genomic data, biological data and ecological data, etc., in order to scientifically assess biodiversity, effectively protect species and fully restore ecosystems. By providing data support, this technology helps to protect and sustainably utilize local biodiversity resources.

[0063] Fourth, negative carbon-oriented circular economy and industrial layout regulation technology: This technology aims to propose a series of optimization plans through in-depth analysis of industrial economic data, energy consumption data and carbon emission data to reduce the consumption of high-carbon energy such as coal and oil, curb greenhouse gas emissions, promote the development of circular economy, and maximize resource utilization and minimize waste emissions. Its goal is to promote sustainable development of the economy, environment and society.

[0064] Fifth, the technology of improving the smooth flow of physical information and digital intelligence empowerment: This technology makes full use of advanced technologies such as the Internet of Things, sensors, cloud computing and big data, and realizes the intelligent interconnection and intelligent decision-making of various parts of the city by collecting and analyzing the Internet of Things data and communication data from various sensors and smart devices. At the same time, with the help of new information infrastructure such as 5G, computing power network and smart middle platform, this technology provides a solid foundation for the vigorous development of the digital economy and promotes the intelligent process of the city.

[0065] Sixth, people-oriented optimization technology for livable and suitable for business: This technology is a method that comprehensively uses population data, employment data, public service data and environmental data, etc., to analyze population structure, population density, population mobility, etc., to provide basic data for urban planning; to analyze employment structure, employment rate, employment satisfaction, etc., to provide a basis for industrial policy formulation; and to process environmental data such as air quality, water quality, and noise to monitor and evaluate urban environmental quality, so as to promote environmental improvement and the livable and suitable for business development of the city. Its goal is to improve the quality of life and employment satisfaction of urban residents.

[0066] It can be seen from the above technical solutions that the present invention systematically collects and organizes theoretical and practical experience in the planning and construction of smart ecological cities at home and abroad, and constructs a relatively comprehensive and systematic technology library for the planning, construction and operation management of smart ecological cities. The technology library not only includes existing mature technologies, but also proactively incorporates cutting-edge technologies in the research and development stage. The technology library contains six categories of key technologies, covering land space resources, water resources and their ecological environment, local biodiversity resources, circular economy and industrial layout, smooth communication and digital empowerment, and people-oriented livable and business-friendly aspects. The integration and application of these technologies provide strong technical support for the construction of smart ecological cities and solve the problem of weak technical support.

[0067] Based on the technology library, a technology evaluation system was constructed, and different weights were assigned to multiple evaluation indicators. This step ensured the standardization and unification of the evaluation process, allowing effective comparison and evaluation between different technologies, thus solving the problem of inconsistent evaluation indicator systems.

[0068] By scoring and screening each technology, key technologies that are essential to the planning, construction, operation and management of smart ecological cities can be identified. These key technologies are not only universal, but can also be customized and optimized according to the characteristics and needs of specific cities, thus providing targeted and local guidance.

[0069] Furthermore, the technology library consists of a technology catalog table and a technology business card. The technology catalog table includes technology name, technology source, technology readiness and keywords. The technology business card mainly introduces the basic information of each technology, including the technology R&D unit, the corresponding output and design parameters.

[0070] The readiness of each technology can be divided into the following 9 levels according to its implementation progress:

[0071] Level 1: "Discovering the basic principles or seeing reports on the basic principles", Level 2: "Forming a technical solution", Level 3: "Passing small-scale test verification", Level 4: "Passing pilot test verification", Level 5: "Forming a process package or product, platform overall design, and the technical solution passes feasibility analysis", Level 6: "Passing technical demonstration / engineering demonstration", Level 7: "Passing third-party evaluation or user verification and approval", Level 8: "Normalization / standardization", Level 9: "Promoted and applied".

[0072] Preferably, the technical evaluation system includes evaluation indicators, indicator grade scoring standards, indicator benchmark values ​​and interpretations. The evaluation indicators include three dimensions: technical indicators, environmental indicators and economic indicators. Technical indicators include reliability, applicability and wisdom, which are common indicators; environmental indicators are specific indicators; and economic indicators include investment costs, operating costs and technical benefits, which are common indicators.

[0073] In this embodiment, in step S2, the method of assigning different weights to multiple evaluation indicators in the technology evaluation system is as follows:

[0074] S21: X j Recorded as the jth evaluation index, since the nature of the index may be inconsistent when selecting the evaluation index, the extreme value processing method is used to evaluate the evaluation index X j Perform dimensionless processing to unify the index data and obtain the normalized evaluation index V of the i-th technology to be evaluated. ij ;

[0075] S22: To avoid the evaluation index V in the above calculation ij In the case of zero value, the logarithm of zero value cannot be calculated. In order to eliminate the influence of this result, V ij Therefore, when V ij =0, the data needs to be translated to the normalized evaluation index V ij Eliminate zero values ​​and obtain the evaluation index after processing

[0076]

[0077] Wherein, H is a preset parameter; since this embodiment generally retains 4 significant digits when calculating numerical values, the value of H is set to 0.0001.

[0078] S23: Based on the evaluation index after the processing Calculate the contribution P of the jth evaluation index of the i-th technology to be evaluated ij :

[0079]

[0080] S24: Based on the contribution P ij , calculate the entropy value e of the jth evaluation index of the i-th technology to be evaluated j :

[0081]

[0082] in,

[0083] S25: Based on the entropy value e j , calculate the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j :

[0084] d j =1-e j

[0085] S26: According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j :

[0086]

[0087] Further, in step S21, the normalized evaluation index V of the i-th technology to be evaluated is obtained. ij The method is as follows:

[0088] Judge Xj Is it a positive or negative indicator?

[0089] If X j Is a positive indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for:

[0090]

[0091] If X j Is a negative indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for:

[0092]

[0093] Among them, X ij is the jth evaluation index value of the i-th technology to be evaluated, (X ij ) max and (X ij ) min They are the evaluation index values ​​X ij The maximum and minimum values ​​in , i = 1, 2, 3, ..., n, n is the number of technologies to be evaluated, j = 1, 2, 3, ..., m, m is the number of evaluation indicators;

[0094] Furthermore, in step S3, according to the comprehensive score of each technology, the technologies with the top 20% comprehensive scores are selected as key technologies, forming key technologies for improving the ecological-economic value of land space resources, key technologies for improving the quality and efficiency of water resources and their ecological environment, key technologies for the preservation and utilization of local biodiversity resources, negative carbon-oriented circular economy and industrial layout regulation technology, physical and information flow and digital intelligence empowerment enhancement technology, and people-oriented livable and business-friendly optimization technology. Through the key technologies, data information and evaluation results are analyzed from the perspectives of technology innovation type, technology readiness, technology performance, etc., and optimization plans are proposed for the planning, construction, and operation management of smart ecological cities.

[0095] Among them, the above-mentioned types of technological innovation can be divided into four types: original innovation, enhanced application, introduction and transformation, and integrated innovation.

[0096] In summary, the present invention can screen out key technologies that excel in terms of technological advancement, economic feasibility, and environmental friendliness, based on the characteristics and needs of the current construction in the planned area. Based on these key technologies, combined with the actual needs and development goals of the smart eco-city, targeted planning, construction, and operation management optimization plans are proposed. These plans aim to achieve the optimization of urban spatial layout, refinement of water resources management, effective protection of biodiversity, green transformation of circular economy and industrial structure, intelligent coordination of urban physical and information flows, and overall improvement of residents' quality of life through technological innovation.

[0097] Embodiment 2

[0098] like Figure 2 As shown, the embodiment of the present invention further provides a smart eco-city key technology evaluation system, which is used to implement the smart eco-city key technology evaluation method described in the above embodiment 1, and specifically includes:

[0099] A technology library construction module 100 is used to establish a technology library for smart ecological city planning, construction and operation management;

[0100] A comprehensive score calculation module 200 is used to construct a technology evaluation system based on the technology library, assign different weights to multiple evaluation indicators in the technology evaluation system, and score each technology in the technology library according to the evaluation indicators to obtain a comprehensive score for each technology;

[0101] The method of assigning different weights to multiple evaluation indicators in the technical evaluation system is as follows:

[0102] X j Recorded as the jth evaluation index, the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V of the i-th technology to be evaluated ij ;

[0103] Based on the normalized evaluation index V ij , and obtain the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j ;

[0104] According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j ;

[0105] The city planning, construction and operation management optimization module 300 is used to select technologies that meet the conditions as key technologies based on the comprehensive score of each technology, and propose optimization plans for the planning, construction and operation management of the smart ecological city through the key technologies.

[0106] A smart eco-city key technology evaluation system in this embodiment is used to implement the aforementioned smart eco-city key technology evaluation method. Therefore, the specific implementation method of the smart eco-city key technology evaluation system can be seen in the implementation example of the smart eco-city key technology evaluation method in the previous text. For example, the technology library construction module 100, the comprehensive score calculation module 200, and the urban planning, construction and operation management optimization module 300 are respectively used to implement steps S1, S2, and S3 in the above-mentioned smart eco-city key technology evaluation method. Therefore, its specific implementation method can refer to the description of the corresponding embodiments of each part. In order to avoid redundancy, it will not be repeated here.

[0107] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0108] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0109] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A method for evaluating key technologies of a smart eco-city, characterized in that: The following steps are involved: S1: Establish a technology library for smart ecological city planning, construction and operation management; S2: Based on the technology library, a technology evaluation system is constructed, different weights are assigned to multiple evaluation indicators in the technology evaluation system, and each technology in the technology library is scored according to the evaluation indicators to obtain a comprehensive score for each technology; S3: Based on the comprehensive score of each technology, select the technologies that meet the requirements as key technologies, and propose optimization solutions for the planning, construction, and operation management of smart ecological cities through the key technologies; In step S2, the method of assigning different weights to multiple evaluation indicators in the technology evaluation system is as follows: S21: X j Recorded as the jth evaluation index, the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V of the i-th technology to be evaluated ij ; S22: Based on the normalized evaluation index V ij , and obtain the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j ; S23: According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j .

2. The key technology evaluation method for smart eco-city according to claim 1 is characterized in that: In S21, the normalized evaluation index V of the i-th technology to be evaluated is obtained. ij The method is as follows: Judge X j Is it a positive or negative indicator? If X j Is a positive indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for: If X j Is a negative indicator, for the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V ij for: Among them, X ij is the jth evaluation index value of the i-th technology to be evaluated, (X ij ) max and (X ij ) min They are the evaluation index values ​​X ij The maximum and minimum values ​​in , i = 1, 2, 3, ..., n, n is the number of technologies to be evaluated, j = 1, 2, 3, ..., m, m is the number of evaluation indicators.

3. The key technology evaluation method for smart eco-city according to claim 1 is characterized in that: In S22, the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated is obtained. j The method is as follows: S221: The normalized evaluation index V ij Eliminate zero values ​​and obtain the evaluation index after processing Among them, H is the preset parameter; S222: Based on the evaluation index after the processing Calculate the contribution P of the jth evaluation index of the i-th technology to be evaluated ij ; S223: Based on the contribution P ij , calculate the entropy value e of the jth evaluation index of the i-th technology to be evaluated j ; S224: Based on the entropy value e j , calculate the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j .

4. The key technology evaluation method for smart eco-city according to claim 3 is characterized in that: The contribution P of the jth evaluation index of the i-th technology to be evaluated ij It is expressed as:

5. The key technology evaluation method for smart eco-city according to claim 3 is characterized in that: The entropy value e of the jth evaluation index of the i-th technology to be evaluated j It is expressed as: in, 6. The key technology evaluation method for smart eco-city according to claim 3 is characterized in that: The difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j It is expressed as: d j =1-e j 。 7. The key technology evaluation method for smart eco-city according to claim 1 is characterized in that: The weight W of the jth evaluation indicator of the i-th technology to be evaluated j It is expressed as: Wherein, j=1,2,3,...,m, and m is the number of evaluation indicators.

8. The key technology evaluation method for smart eco-city according to claim 1 is characterized in that: In S1, the technology library consists of a technology catalog table and a technology business card. The technology catalog table includes technology name, technology source, technology readiness and keywords, and the technology business card includes technology R&D unit, corresponding output results and design parameters.

9. The key technology evaluation method for smart eco-city according to claim 1 is characterized in that: In S2, the evaluation indicators include technical indicators, environmental indicators and economic indicators.

10. A key technology evaluation system for smart eco-city, characterized in that: The system is used to implement the key technology evaluation method for a smart eco-city according to any one of claims 1 to 9, specifically comprising: Technology library construction module, used to establish a technology library for smart ecological city planning, construction and operation management; A comprehensive score calculation module is used to construct a technology evaluation system based on the technology library, assign different weights to multiple evaluation indicators in the technology evaluation system, score each technology in the technology library, and obtain a comprehensive score for each technology; The method of assigning different weights to multiple evaluation indicators in the technical evaluation system is as follows: X j Recorded as the jth evaluation index, the evaluation index X j Perform dimensionless processing to obtain the normalized evaluation index V of the i-th technology to be evaluated ij ; Based on the normalized evaluation index V ij , and obtain the difference coefficient d of the jth evaluation index of the i-th technology to be evaluated j ; According to the difference coefficient d j , get the weight W of the jth evaluation index of the i-th technology to be evaluated j ; The urban planning, construction and operation management optimization module is used to screen out qualified technologies as key technologies based on the comprehensive score of each technology, and propose optimization plans for the planning, construction and operation management of smart ecological cities through the key technologies.

Images