A demolition and expropriation visualization management method and system

Abstract

The present invention relates to the technical field of data management, and discloses a demolition and expropriation visualization management method and system. The method includes obtaining the geographical information of the demolition and expropriation object and the current demolition time; predicting the resident satisfaction coefficient through a resident satisfaction prediction model; calculating the demolition and expropriation difficulty of the demolition and expropriation object by combining the demolition difficulty coefficient; dividing the demolition and expropriation difficulty of the demolition and expropriation object according to the evaluation grade standard of the demolition and expropriation difficulty coefficient; obtaining the predicted demolition time of the demolition and expropriation object through a demolition time prediction model; calculating the demolition and expropriation progress of the demolition and expropriation object according to the first land expropriation area, the second land expropriation area, the predicted demolition time and the current demolition time of the demolition and expropriation object; constructing an individual interface and the regional interface to view the demolition and expropriation information of the demolition and expropriation object, so as to realize the visualization management of the demolition and expropriation information. The demolition and expropriation visualization management method provided by the present invention effectively solves the problem of low efficiency in the management of demolition and expropriation data.

Description

Technical Field

[0001] The present invention relates to the technical field of data management, and particularly to a demolition and expropriation visualization management method, system, electronic device and storage medium. Background Art

[0002] Currently, with the acceleration of the urbanization process, land resources are becoming increasingly tense, and the country's demand for land planning, demolition and expropriation is continuously increasing. The effective implementation of demolition and expropriation management work can not only consolidate land resources, but also provide services for the construction of urban landmark buildings, characteristic commercial streets, etc., which is of great significance for accelerating urbanization construction. In this context, demolition and expropriation management faces many challenges, such as low efficiency, low resident satisfaction, etc.

[0003] In an existing technology, through the establishment of a land expropriation and demolition compensation business database and a GIS database, the informatization management of data, documents and GIS graphics related to land expropriation and demolition has been realized. This technology combines paper materials and electronic maps to reflect the entire demolition and compensation process on the map, including demolition plots, detailed information of householders, compensation standards, amounts and methods, etc. However, this solution only records the relevant information of demolition and expropriation, but does not manage the entire demolition and expropriation process, cannot update the demolition and expropriation progress in real time, and lacks a quantitative index system, and cannot make statistics and analysis on the specific data of the demolished and expropriated objects, affecting the efficiency of demolition and expropriation.

[0004] In the prior art, problems such as the lack of a quantitative index system and low resident satisfaction affect the efficiency of demolition and expropriation data management. Summary of the Invention

[0005] The present invention provides a demolition and expropriation visualization management method, system, electronic device and storage medium to solve the problem of low efficiency in demolition and expropriation data management.

[0006] In a first aspect, to solve the above technical problem, the present invention provides a demolition and expropriation visualization management method, including:

[0007] Obtain the geographical information of the demolition and expropriation object and the current demolition time, where the geographical information includes the distance between the demolition and expropriation object and the key urban planning project, the expropriated land area of the demolition and expropriation object, the building area of the demolition and expropriation object and the building function type, the expropriated land area includes the first expropriated land area and the second expropriated land area, the first expropriated land area is the total expropriated land area of the demolition and expropriation object, and the second expropriated land area is the expropriated land area that has been demolished of the demolition and expropriation object;

[0008] Construct a resident satisfaction prediction model according to the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object and the building function type, and predict the resident satisfaction coefficient;

[0009] Obtain the structural coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object, and calculate the demolition difficulty coefficient;

[0010] According to the demolition difficulty coefficient and the resident satisfaction coefficient, calculate the demolition and expropriation difficulty of the demolition and expropriation object;

[0011] Input the building area of the demolition and expropriation object, the building function type, and the distance between the demolition and expropriation object and the key urban planning project into the pre-trained demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object;

[0012] According to the first expropriated land area, the second expropriated land area, the predicted demolition time, and the current demolition time, calculate the demolition and expropriation progress of the demolition and expropriation object;

[0013] Construct an individual interface and a regional interface;

[0014] According to the individual interface and the regional interface, view the geographical information, demolition and expropriation difficulty, and demolition and expropriation progress of the demolition and expropriation object, and realize the visual management of the demolition and expropriation object.

[0015] In an optional implementation manner, the constructing a resident satisfaction prediction model according to the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type includes:

[0016] According to the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type, use the analytic hierarchy process to construct a judgment matrix;

[0017] Perform normalization processing on each column of the judgment matrix, and the normalization can be expressed as:

[0018]

[0019] where r ij is the normalized element value, a ij is the element value corresponding to the i-th row and j-th column in the judgment matrix, is the sum of all elements in the j-th column of the judgment matrix;

[0020] According to the judgment matrix, calculate the weight, and the weight calculation formula is:

[0021]

[0022] where w i is the weight value of the i-th row, is the sum of the normalized elements in the i-th row, and n is the number of rows of the judgment matrix;

[0023] According to the weight, the distance between the object to be demolished and relocated and the key urban planning project, the building area of the object to be demolished and relocated, and the building function type, a prediction model for residents' satisfaction is constructed, and the prediction model for residents' satisfaction is expressed as:

[0024]

[0025] Among them, p is the satisfaction coefficient, is the constant term, d is the distance between the object to be demolished and relocated and the key urban planning project, s is the building area of the object to be demolished and relocated, f is the building function type, and w1, w2, and w3 are the weight values corresponding to the distance between the object to be demolished and relocated and the key urban planning project, the building area of the object to be demolished and relocated, and the building function type, respectively.

[0026] In an alternative embodiment, the obtaining the structural coefficient, material coefficient, and equipment coefficient of the object to be demolished and relocated, and calculating the demolition difficulty coefficient includes:

[0027] The calculation formula of the demolition difficulty coefficient is as follows:

[0028] μ = σ1×a + σ2×b + σ3×c;

[0029] Among them, μ is the demolition difficulty coefficient, a is the structural coefficient, b is the material coefficient, c is the equipment coefficient, and σ1, σ2, and σ3 are the weight coefficients corresponding to the structural coefficient, material coefficient, and equipment coefficient, respectively.

[0030] In an alternative embodiment, the calculating the demolition and relocation difficulty of the object to be demolished and relocated according to the demolition difficulty coefficient and the residents' satisfaction coefficient includes:

[0031] The calculation formula of the demolition and relocation difficulty of the object to be demolished and relocated is as follows:

[0032] d = γ1μ + γ2p;

[0033] Among them, d is the demolition and relocation

[0034] difficulty of the object to be demolished and relocated, μ is the demolition difficulty coefficient, p is the satisfaction coefficient, and γ1 and γ2 are the weight coefficients corresponding to the demolition difficulty coefficient and the satisfaction coefficient, respectively.

[0035] In an alternative embodiment, the inputting the building area, building function type of the object to be demolished and relocated, and the distance from the key urban planning project into a pre-trained demolition time prediction model to obtain the predicted demolition time of the object to be demolished and relocated includes:

[0036] Obtain the historical data of multiple historical demolition and expropriation objects, where the historical data includes the building area, building function type of the multiple historical demolition and expropriation objects, the distance from the urban key planning project, and the actual demolition time;

[0037] Construct a linear regression model based on the historical data, and the linear regression model is as follows:

[0038] t i =β0 + β1s i +β2f i +β3d i ;

[0039] where i ∈ [1, 2,..., n], n is the total number of demolition and expropriation objects in the historical data, t i is the predicted demolition time of the i-th demolition and expropriation object in the historical data, β0, β1, β2, and β3 are model parameters that can be obtained by fitting the historical data, s i is the building area of the i-th demolition and expropriation object in the historical data, f i is the building function type of the i-th demolition and expropriation object in the historical data, d i is the distance between the i-th demolition and expropriation object and the urban key planning project;

[0040] Train the linear regression model according to the predicted demolition time and the actual demolition time through a set loss function. When the number of training times is greater than or equal to the maximum number of training times, it is determined that the training is completed, and a demolition time prediction model is obtained;

[0041] Input the building area, building function type of the demolition and expropriation object, and the distance from the urban key planning project into the demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object.

[0042] In an alternative embodiment, the calculating the expropriation progress of the expropriation object according to the first expropriation area, the second expropriation area, the predicted demolition time, the predicted demolition time, and the current demolition time includes:

[0043] The calculation of the expropriation progress of the expropriation object is as follows:

[0044]

[0045] where pro is the expropriation progress of the expropriation object, A c is the second expropriation area, A t is the first expropriation area, T c is the current demolition time, T t is the predicted demolition time, w Aand w T are the weight coefficients of area and time respectively.

[0046] In an alternative embodiment, the construction of the individual interface and the regional interface includes:

[0047] The individual interface takes a single expropriation object as a unit and displays the geographical information and the evaluated expropriation difficulty of the single expropriation object; the regional interface displays different types of expropriation objects in different regions, and the different types of expropriation objects include: buildings, roads, parks;

[0048] Obtain the geographical information, expropriation difficulty, resident satisfaction coefficient, predicted demolition time, current demolition time and expropriation progress of multiple expropriation objects;

[0049] Create an expropriation object layer and a geographical layer; the expropriation object layer includes an expropriation area layer and an expropriation progress layer;

[0050] Judge whether the overall area of the geographical region included in the regional interface is less than the set scale. If so, display the geographical information of the geographical region; if not, hide the geographical information of the geographical region;

[0051] According to the expropriation difficulty, perform chromaticity identification on the expropriation area through the expropriation area layer;

[0052] Use a progress bar through the expropriation progress layer to display the general situation of the expropriation progress of the entire region, and the depth of the color indicates the speed of the expropriation progress.

[0053] In a second aspect, the present invention provides an expropriation visualization management system, including:

[0054] A data acquisition module for acquiring the geographical information, structural coefficient, material coefficient, equipment coefficient and current demolition time of the expropriation object;

[0055] A resident satisfaction prediction model construction module for constructing a resident satisfaction prediction model according to the distance between the expropriation object and the key urban planning project, the building area and the building function type of the expropriation object, and predicting the resident satisfaction coefficient;

[0056] A demolition difficulty coefficient calculation module for acquiring the structural coefficient, material coefficient and equipment coefficient of the expropriation object;

[0057] An expropriation difficulty calculation module for calculating the expropriation difficulty of the expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient;

[0058] An expropriation difficulty level classification module for classifying the expropriation difficulty of the expropriation object into different levels;

[0059] A demolition time prediction module, configured to input the building area, building function type of the expropriated object, and the distance from the key urban planning project into a pre-trained demolition time prediction model to obtain the predicted demolition time of the expropriated object;

[0060] An expropriation progress calculation module, configured to calculate the expropriation progress of the expropriated object according to the first expropriated land area, the second expropriated land area, the predicted demolition time, and the current demolition time;

[0061] An interface construction module, configured to construct an individual interface and a regional interface;

[0062] A demolition and expropriation visualization module, configured to view the geographical information, demolition and expropriation difficulty, and expropriation progress of the expropriated object according to the individual interface and the regional interface, so as to realize the visual management of the expropriated object.

[0063] In a third aspect, the present invention further provides an electronic device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, the visual management method for demolition and expropriation described in any one of the above is implemented.

[0064] In a fourth aspect, the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program. When the computer program runs, the device where the computer-readable storage medium is located is controlled to execute the visual management method for demolition and expropriation described in any one of the above.

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] The present invention provides a visual management method for demolition and expropriation, including:

[0067] Obtain the geographical information and the current demolition time of the demolition and expropriation object. The geographical information includes the distance between the demolition and expropriation object and the key urban planning project, the expropriated area of the demolition and expropriation object, the building area of the demolition and expropriation object, and the building function type. The expropriated area includes the first expropriated area and the second expropriated area. The first expropriated area is the total expropriated area of the demolition and expropriation object, and the second expropriated area is the expropriated area that has been demolished of the demolition and expropriation object; construct a resident satisfaction prediction model based on the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type, and predict the resident satisfaction coefficient; obtain the structure coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object, and calculate the demolition difficulty coefficient; calculate the demolition and expropriation difficulty of the demolition and expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient; input the building area of the demolition and expropriation object, the building function type, and the distance between the demolition and expropriation object and the key urban planning project into the pre-trained demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object; calculate the demolition and expropriation progress of the demolition and expropriation object according to the first expropriated area, the second expropriated area, the predicted demolition time, and the current demolition time; construct an individual interface and a regional interface; view the geographical information, demolition and expropriation difficulty, and demolition and expropriation progress of the demolition and expropriation object according to the individual interface and the regional interface, so as to realize the visual management of the demolition and expropriation object.

[0068] The present invention provides a demolition and expropriation visual management method and system to solve the problem of low efficiency in managing demolition and expropriation data and realize high-efficiency visual management of demolition and expropriation information. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 is a flowchart of a demolition and expropriation visual management method provided by an embodiment of the present invention;

[0070] Figure 2 is a structural schematic diagram of a demolition and expropriation visual management system provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0072] Refer to Figure 1 , the first embodiment of the present invention provides a demolition and expropriation visual management method, including the following steps:

[0073] S11. Obtain the geographical information and the current demolition time of the object to be demolished and expropriated;

[0074] S12. Build a prediction model for residents' satisfaction based on the distance between the object to be demolished and expropriated and the key urban planning projects, the building area and the building function type of the object to be demolished and expropriated, and predict the residents' satisfaction coefficient;

[0075] S13. Obtain the structure coefficient, material coefficient and equipment coefficient of the object to be demolished and expropriated, and calculate the demolition difficulty coefficient;

[0076] S14. Calculate the expropriation and demolition difficulty of the object to be demolished and expropriated according to the demolition difficulty coefficient and the residents' satisfaction coefficient;

[0077] S15. Input the building area, building function type and the distance from the key urban planning projects of the object to be demolished and expropriated into the pre-trained demolition time prediction model to obtain the predicted demolition time of the object to be demolished and expropriated;

[0078] S16. Calculate the expropriation and demolition progress of the object to be demolished and expropriated according to the first expropriated land area, the second expropriated land area, the predicted demolition time and the current demolition time;

[0079] S17. Build an individual interface and a regional interface;

[0080] S18. View the geographical information, expropriation and demolition difficulty and expropriation and demolition progress of the object to be demolished and expropriated according to the individual interface and the regional interface, so as to realize the visual management of the object to be demolished and expropriated.

[0081] In step S11, obtain the geographical information and the current demolition time of the object to be demolished and expropriated.

[0082] Among them, the geographical information includes the distance between the object to be demolished and relocated and key urban planning projects, the land acquisition area of the object to be demolished and relocated, the building area of the object to be demolished and relocated, and the building function type; the geographical information includes the specific location coordinates of the object to be demolished and relocated, which helps to plan the demolition sequence, evaluate the impact of demolition on the surrounding environment, and optimize the demolition progress. There are three ways to obtain the geographical information as follows: First, obtain the captured image of the object to be demolished and relocated, and the captured image is captured by a capturing device with GPS positioning function; Second, analyze the GPS information included in the captured image, and the geographical information system generates the geographical information of the demolition object; Third, manually input the geographical information of the object to be demolished and relocated. The geographical information is obtained by combining the above three acquisition methods. The land acquisition area includes the first land acquisition area and the second land acquisition area, which are obtained by technical means such as on-site measurement, satellite remote sensing detection, and UAV aerial photography; the first land acquisition area is the total land acquisition area of the object to be demolished and relocated, which refers to the total area of the land to be demolished. The second land acquisition area is the land acquisition area that has been demolished for the object to be demolished and relocated. The current demolition time refers to the demolition time used for the land acquisition area that has been demolished for the object to be demolished and relocated.

[0083] It should be noted that the shooting by using a shooting device with GPS positioning function includes the following three devices: GPS positioning device: used to obtain the geographical information of the object to be demolished and relocated; Shooting device: used to obtain the building image of the object to be demolished and relocated; Control device: used to connect the GPS positioning device and the shooting device, used to import and display the geographical information and images, and calculate the geographical information data, building size, and land acquisition area of the object to be demolished and relocated.

[0084] In step S12, according to the distance between the object to be demolished and relocated and key urban planning projects, the building area of the object to be demolished and relocated, and the building function type, a prediction model for residents' satisfaction is constructed, and the residents' satisfaction coefficient is predicted.

[0085] Among them, key urban planning projects usually refer to projects that play an important role in urban planning and development strategies. Recording the distance between the object to be demolished and relocated and key urban planning projects is used to determine the demolition priority of the object to be demolished and relocated. Using the geographical information system GIS, the straight-line distance between the object to be demolished and relocated and key projects is obtained through the map measurement tool. The building area specifically includes the building area and the public area. The public area includes patios, corridors, aisles, toilet facilities, balconies, etc. The building area is mainly obtained through two methods: UAV aerial photography and satellite remote sensing detection. The building function specifically includes residential areas and commercial business areas.

[0086] It should be noted that for the construction of the resident satisfaction prediction model, first, according to the distance between the demolition object and the key urban planning project, the building area of the demolition object, and the building function type, an analytic hierarchy process is used to construct a judgment matrix. Among them, the values corresponding to the building function types are: 1.0 for residential areas, 1.15 for commercial business areas, 0.85 for schools, 1.2 for administrative office areas, 0.8 for parks, and 0.75 for factories.

[0087] Normalize each column of the judgment matrix, and the normalization can be expressed as:

[0088]

[0089] where, r ij is the normalized element value, a ij is the element value corresponding to the i-th row and j-th column in the judgment matrix, is the sum of all elements in the j-th column of the judgment matrix;

[0090] Based on the judgment matrix, calculate the weights. The weight calculation formula is:

[0091]

[0092] where, w i is the weight value of the i-th row, is the sum of the normalized elements in the i-th row, and n is the number of rows of the judgment matrix;

[0093] Based on the weights, the distance between the demolition object and the key urban planning project, the building area of the demolition object, and the building function type, construct a resident satisfaction prediction model, and the resident satisfaction prediction model is expressed as:

[0094]

[0095] where, p is the satisfaction coefficient, is the constant term, d is the distance between the demolition object and the key urban planning project, s is the building area of the demolition object, f is the building function type, and w1, w2, and w3 are the weight values corresponding to the distance between the demolition object and the key urban planning project, the building area of the demolition object, and the building function type respectively.

[0096] Furthermore, input the distance between the demolition object and the key urban planning project, the building area of the demolition object, and the building function type into the resident satisfaction prediction model, and then the resident satisfaction coefficient of the demolition object can be obtained.

[0097] In step S13, obtain the structural coefficient, material coefficient, and equipment coefficient of the expropriation and demolition object, and calculate the demolition difficulty coefficient.

[0098] Among them, the structural coefficient refers to the structural stability and complexity of the building, which reflects the influence of the building's structural type (such as reinforced concrete, brick-concrete, brick-wood, etc.) and structural condition (such as newness and oldness, damage condition) on the demolition difficulty. Use satellite remote sensing to obtain the housing image information of the expropriated object, extract the structural features of the house, mainly filter each band of the panchromatic image, multi-spectral image, and fusion result image, use the B3 spline function as the filter, and use a 5*5 filter convolution kernel to extract the structural features; the material coefficient refers to the influence of the types and quality of building materials used on the demolition difficulty, and the material coefficient directly obtains information such as the technical specifications of the materials from the building material manufacturers; the equipment coefficient refers to the influence of the equipment installed in the building (such as elevators, air conditioners, pipeline systems, etc.) on the demolition difficulty, and this information can directly obtain technical parameters from the equipment manufacturers.

[0099] The calculation formula for the demolition difficulty coefficient is as follows:

[0100] μ = σ1×a + σ2×b + σ3×c;

[0101] Among them, μ is the demolition difficulty coefficient, a is the structural coefficient, b is the material coefficient, c is the equipment coefficient, and σ1, σ2, and σ3 are the weight coefficients corresponding to the structural coefficient, material coefficient, and equipment coefficient respectively.

[0102] Specifically, σ1 is 0.4, σ2 is 0.3, and σ3 is 0.3.

[0103] In step S14, according to the demolition difficulty coefficient and the resident satisfaction coefficient, calculate the expropriation and demolition difficulty of the expropriation and demolition object.

[0104] The calculation formula for the expropriation and demolition difficulty of the expropriation and demolition object is as follows:

[0105] d = γ1μ + γ2p;

[0106] Among them, d is the expropriation and demolition difficulty of the expropriation and demolition object, μ is the demolition difficulty coefficient, p is the satisfaction coefficient, and γ1 and γ2 are the weight coefficients corresponding to the demolition difficulty coefficient and the satisfaction coefficient respectively. Specifically, since there is no obvious priority, the average weighting method is used here for the weights, that is, both γ1 and γ2 are 0.5.

[0107] Furthermore, the expropriation and demolition difficulty is divided into four levels: A is the expropriation and demolition difficulty of 0 - 25 points, B is the expropriation and demolition difficulty of 25 - 50 points, C is the expropriation and demolition difficulty of 50 - 75 points, and D is the expropriation and demolition difficulty of 75 - 100 points.

[0108] In step S15, the building area, building function type of the expropriation object, and the distance from the urban key planning project are input into the pre-trained demolition time prediction model to obtain the predicted demolition time of the expropriation object.

[0109] It should be noted that the construction of the demolition time prediction model includes: obtaining historical data of multiple historical expropriation objects, where the historical data includes the building area, building function type of the multiple historical expropriation objects, the distance from the urban key planning project, and the actual demolition time; specifically, the data of historical expropriation objects is sourced from demolished houses, by consulting government file records and analyzing past satellite remote sensing and drone aerial images to obtain this historical data.

[0110] Based on the historical data, a linear regression model is constructed. The linear regression model is as follows:

[0111]

[0112] where \(i\in[1,2,\cdots,n]\), \(n\) is the total number of expropriation objects in the historical data, \(\hat{t}_i\) is the predicted demolition time of the \(i\)-th expropriation object in the historical data, \(\beta_0\), \(\beta_1\), \(\beta_2\) and \(\beta_3\) are model parameters that can be obtained by fitting the historical data, i \(s_i\) is the building area of the \(i\)-th expropriation object in the historical data, i \(f_i\) is the building function type of the \(i\)-th expropriation object in the historical data, i \(d_i\) is the distance between the \(i\)-th expropriation object and the urban key planning project in the historical data;

[0113] According to the predicted demolition time and the actual demolition time, the linear regression model is trained through a set loss function. When the number of training times is greater than or equal to the maximum number of training times, it is determined that the training is completed, and the demolition time prediction model is obtained. Specifically, the loss function used is the root mean square error, and the calculation formula of the loss function is as follows:

[0114]

[0115] where \(n\) is the total number of expropriation objects in the historical data, \(L_i\) i is the error value between the predicted demolition time and the actual demolition time of the \(i\)-th expropriation object in the historical data, \(t_i\) i is the actual demolition time of the \(i\)-th expropriation object in the historical data, \(\hat{t}_i\) is the predicted demolition time of the \(i\)-th expropriation object in the historical data.

[0116] Further, input the building area, building function type of the expropriation and demolition object, and the distance from the urban key planning project into the demolition time prediction model to obtain the predicted demolition time of the expropriation and demolition object.

[0117] In step S16, according to the first land expropriation area, the second land expropriation area, the predicted demolition time, and the current demolition time, calculate the expropriation and demolition progress of the expropriation and demolition object.

[0118] It should be noted that the expropriation and demolition progress is an indicator to measure the progress of the demolition project as planned, and it reflects the completion of the project from the start to the current. The calculation of the expropriation and demolition progress of the expropriation and demolition object is as follows:

[0119]

[0120] Among them, pro is the expropriation and demolition progress of the expropriation and demolition object, A c is the second land expropriation area, A t is the first land expropriation area, T c is the current demolition time, T t is the predicted demolition time, w A and w T are the weight coefficients of area and time respectively. In the present invention, w A is set to 0.6, and w T is set to 0.4.

[0121] In step S17, construct an individual interface and a regional interface.

[0122] Among them, the individual interface takes a single expropriation and demolition object as a unit and displays the geographical information and the evaluated expropriation and demolition difficulty of the single expropriation and demolition object; the regional interface displays different types of expropriation and demolition objects in different regions, and the different types of expropriation and demolition objects include: buildings, roads, parks;

[0123] Specifically, obtain the geographical information, expropriation and demolition difficulty, resident satisfaction coefficient, predicted demolition time, current demolition time, and expropriation and demolition progress of multiple expropriation and demolition objects; create an expropriation and demolition object layer and a geographical layer; the expropriation and demolition object layer includes an expropriation area layer and an expropriation and demolition progress layer;

[0124] Judge whether the overall area of the geographical region included in the regional interface is less than the set scale. If so, display the geographical information of the geographical region; if not, hide the geographical information of the geographical region; according to the expropriation and demolition difficulty, perform chromaticity marking on the land expropriation area through the expropriation area layer; display the expropriation and demolition progress of each expropriation and demolition object through the expropriation and demolition progress layer, and the expropriation and demolition progress information includes the land expropriation area and the expropriation and demolition progress, and display a progress bar according to the completion degree of the expropriation and demolition progress. The higher the completion degree of the expropriation and demolition progress, the darker the marking color of the progress bar.

[0125] It should be noted that in Geographic Information System (GIS) and computer graphics, a "layer" refers to a set of geographical feature collections with the same attributes and visualization styles. These features can be geometric objects such as points, lines, and polygons, which together constitute a specific information layer on the map. Layers enable users to manage and display different types of geographical data, and at the same time, individual editing and visualization settings can be performed on each layer. In the visualization management method for demolition and requisition, the specific meaning of the layer is as follows: Demolition and requisition object layer: This is a layer that contains all demolition and requisition objects (such as buildings, roads, parks, etc.). Each demolition and requisition object is an element in the layer, and its geographical information, demolition and requisition difficulty, etc. can be displayed. Users can intuitively view the spatial distribution and attribute information of each demolition and requisition object through this layer;

[0126] Geographical layer: This layer provides background information of the geographical area, such as terrain, landform, water system, vegetation, etc. It provides geographical context for the demolition and requisition object layer, helping users better understand the location of the demolition and requisition objects in the geographical environment and their environmental impacts; Demolition and requisition area layer: This is a layer that specifically shows the land requisition area of the demolition and requisition objects. Through different chromaticity identifications, users can intuitively identify the demolition and requisition difficulties of different demolition and requisition objects; Demolition and requisition progress layer: This layer uses a progress bar to show the demolition progress of the demolition and requisition objects, and the depth of the color indicates the completion status of the demolition work.

[0127] In step S18, according to the individual interface and the regional interface, view the geographical information, demolition and requisition difficulty, and demolition and requisition progress of the demolition and requisition objects, so as to realize the visualization management of the demolition and requisition objects.

[0128] It should be noted that users can enter specific geographical information, such as street names, house numbers, or geographical coordinates, through the search bar of the individual interface or the map view of the regional interface; the system queries the demolition and requisition objects related to and around this location according to the geographical information input by the user, and the demolition and requisition objects include buildings, roads, and parks; the interface displays the geographical information of the single demolition and requisition object queried. Click on a specific marker on the map or an item in the list according to the interface prompt, and the system will display the detailed information of the demolition and requisition object, including but not limited to name, type, geographical information, current demolition progress, estimated completion time, etc. The system also provides multi-dimensional data analysis tools, and users can filter and sort the demolition and requisition objects according to their needs, such as according to criteria such as demolition difficulty, resident satisfaction, or demolition progress. The system provides a dynamic update function to ensure that the demolition and requisition information viewed by users is the latest. Users can understand the real-time changes in the demolition and requisition progress through the real-time feedback mechanism on the interface, such as a progress bar or a status indicator. Provide interactive navigation, and users can perform interactive navigation on the map through operations such as zooming, panning, and clicking to view the demolition and requisition objects and related information in different areas.

[0129] In summary, the present invention provides a demolition and expropriation visualization management method, including:

[0130] Obtain the geographical information of the demolition and expropriation object, where the geographical information includes the geographical information of the demolition and expropriation object and the expropriated area; construct a resident satisfaction prediction model based on the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type, and predict the resident satisfaction coefficient; obtain the structure coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object, and calculate the demolition difficulty coefficient; calculate the demolition and expropriation difficulty of the demolition and expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient; input the building area, building function type, and the distance from the key urban planning project of the demolition and expropriation object into the pre-trained demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object; obtain the current demolition time of the demolition and expropriation object; calculate the demolition and expropriation progress of the demolition and expropriation object according to the first expropriated area, the second expropriated area, the predicted demolition time, and the current demolition time; construct an individual interface and a regional interface; view the geographical information, demolition and expropriation difficulty, and demolition and expropriation progress of the demolition and expropriation object according to the individual interface and the regional interface, so as to realize the visualization management of the demolition and expropriation object.

[0131] The present invention provides a demolition and expropriation visualization management method and system to solve the problem of low efficiency in managing demolition and expropriation data and realize high-efficiency visualization management of demolition and expropriation information.

[0132] Refer to Figure 2 In the second embodiment of the present invention, a demolition and expropriation visualization management system is provided, including:

[0133] A data acquisition module 100 for obtaining the geographical information, structure coefficient, material coefficient, equipment coefficient, and current demolition time of the demolition and expropriation object;

[0134] A resident satisfaction prediction model construction module 101 for constructing a resident satisfaction prediction model based on the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type, and predicting the resident satisfaction coefficient;

[0135] A demolition difficulty coefficient calculation module 102 for obtaining the structure coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object;

[0136] A demolition and expropriation difficulty calculation module 103 for calculating the demolition and expropriation difficulty of the demolition and expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient;

[0137] A demolition and expropriation difficulty level classification module 104 for classifying the demolition and expropriation difficulty of the demolition and expropriation object into different levels;

[0138] The demolition time prediction module 105 is configured to input the building area, building function type of the expropriation object, and the distance from the key urban planning project into a pre-trained demolition time prediction model to obtain the predicted demolition time of the expropriation object;

[0139] The expropriation progress calculation module 106 is configured to calculate the expropriation progress of the expropriation object according to the first expropriated area, the second expropriated area, the predicted demolition time, and the current demolition time;

[0140] The interface construction module 107 is configured to construct an individual interface and a regional interface;

[0141] The expropriation visualization module 108 is configured to view the geographical information, expropriation difficulty, and expropriation progress of the expropriation object according to the individual interface and the regional interface, so as to realize the visual management of the expropriation object.

[0142] It should be noted that a demolition and expropriation visualization management system provided in an embodiment of the present invention is used to execute all the process steps of a demolition and expropriation visualization management method in the above embodiment, and the working principles and beneficial effects of the two correspond one by one, so details will not be described herein again.

[0143] An embodiment of the present invention further provides an electronic device. The electronic device includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the above-mentioned various embodiments of the demolition and expropriation visualization management method are implemented, such as Figure 1 the step S11 shown. Alternatively, when the processor executes the computer program, the functions of each module / unit in the above-mentioned various device embodiments are implemented, such as the demolition time prediction module.

[0144] Exemplarily, the computer program may be divided into one or more modules / units, and the one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program in the electronic device.

[0145] The electronic device may be a computing device such as a desktop computer, notebook, handheld computer, and smart tablet, etc. The electronic device may include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the above components are only examples of the electronic device and do not constitute a limitation on the electronic device. It may include more or fewer components than the above, or combine some components, or different components. For example, the electronic device may also include input / output devices, network access devices, buses, etc.

[0146] The so-called processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the electronic device and connects all parts of the entire electronic device through various interfaces and lines.

[0147] The memory can be used to store the computer program and / or module. The processor realizes various functions of the electronic device by running or executing the computer program and / or module stored in the memory, and by calling the data stored in the memory. The memory mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one magnetic disk storage device, flash device, or other volatile solid-state storage devices.

[0148] Among them, if the modules / units integrated in the electronic device are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above-described embodiment methods of the present invention, it can also be completed by a computer program instructing relevant hardware. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-described various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0149] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the attached drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0150] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A visualization management method for demolition and requisition, characterized in that, Including: Obtain the geographical information and current demolition time of the demolition and expropriation object. The geographical information includes the distance between the demolition and expropriation object and the key urban planning project, the expropriated area of the demolition and expropriation object, the building area of the demolition and expropriation object, and the building function type. The expropriated area includes the first expropriated area and the second expropriated area. The first expropriated area is the total expropriated area of the demolition and expropriation object, and the second expropriated area is the expropriated area that has been demolished of the demolition and expropriation object; Construct a resident satisfaction prediction model based on the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type, and predict the resident satisfaction coefficient; Obtain the structural coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object, and calculate the demolition difficulty coefficient; Calculate the demolition and expropriation difficulty of the demolition and expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient; Input the building area, building function type, and the distance between the demolition and expropriation object and the key urban planning project into the pre-trained demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object; Calculate the demolition and expropriation progress of the demolition and expropriation object according to the first expropriated area, the second expropriated area, the predicted demolition time, and the current demolition time; Construct an individual interface and a regional interface; View the geographical information, demolition and expropriation difficulty, and demolition and expropriation progress of the demolition and expropriation object according to the individual interface and the regional interface, and realize the visual management of the demolition and expropriation object; Among them, the constructing a resident satisfaction prediction model according to the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type includes: Construct a judgment matrix using the analytic hierarchy process according to the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type; Normalize each column of the judgment matrix. The normalization can be expressed as: ； Among them, is the normalized element value, is the element value corresponding to the i-th row and j-th column in the judgment matrix, is the sum of all elements in the j-th column of the judgment matrix; Calculate the weights according to the judgment matrix. The weight calculation formula is: ； Among them, is the weight value of the i-th row, is the sum of normalized elements of the i-th row, and n is the number of rows of the judgment matrix; Construct a resident satisfaction prediction model according to the weights and the distance between the demolition and expropriation object and the key urban planning project, the building area of the demolition and expropriation object, and the building function type. The resident satisfaction prediction model is expressed as: ; Among them, p is the satisfaction coefficient, is the constant term, is the distance between the demolition and resettlement object and the key urban planning project, s is the building area of the demolition and resettlement object, and f is the building function type, and and are the weight values corresponding to the distance between the demolition and resettlement object and the key urban planning project, the building area of the demolition and resettlement object, and the building function type, respectively.

2. The demolition and requisition visualization management method according to claim 1, wherein The obtaining the structural coefficient, material coefficient, and equipment coefficient of the demolition and expropriation object and calculating the demolition difficulty coefficient includes: The calculation formula of the demolition difficulty coefficient is as follows: ; Among them, is the demolition difficulty coefficient, a is the structure coefficient, b is the material coefficient, c is the equipment coefficient, , , are the weight coefficients corresponding to the structure coefficient, material coefficient and equipment coefficient respectively.

3. The demolition and expropriation visualization management method according to claim 1, wherein The calculating the demolition and expropriation difficulty of the demolition and expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient includes: The calculation formula of the demolition and expropriation difficulty of the demolition and expropriation object is as follows: ； Among them, is the demolition difficulty of the demolition object, is the demolition difficulty coefficient, p is the satisfaction coefficient, and are the weight coefficients corresponding to the demolition difficulty coefficient and the satisfaction coefficient respectively.

4. The demolition and requisition visualization management method according to claim 1, characterized in that The inputting the building area, building function type, and the distance to the key urban planning project of the demolition and expropriation object into the pre-trained demolition time prediction model to obtain the predicted demolition time of the demolition and expropriation object includes: Obtain the historical data of multiple historical demolition and expropriation objects. The historical data includes the building area, building function type, the distance to the key urban planning project, and the actual demolition time of the multiple historical demolition and expropriation objects; Construct a linear regression model based on the historical data, and the linear regression model is as follows: ； Among them, , is the total number of expropriation objects in the historical data, is the predicted demolition time of the i-th expropriation object in the historical data, , , and are model parameters that can be obtained by fitting the historical data, is the building area of the i-th expropriation object in the historical data, is the building function type of the i-th expropriation object in the historical data, is the distance between the i-th expropriation object and the key urban planning project in the historical data; According to the predicted demolition time and the actual demolition time, train the linear regression model through a set loss function. When the number of training times is greater than or equal to the maximum number of training times, it is determined that the training is completed, and a demolition time prediction model is obtained; Input the building area, building function type of the expropriation object, and the distance from the key urban planning project into the demolition time prediction model to obtain the predicted demolition time of the expropriation object.

5. The demolition and expropriation visualization management method according to claim 1, wherein The calculation of the expropriation progress of the expropriation object according to the first expropriation area, the second expropriation area, the predicted demolition time and the current demolition time includes: The calculation of the expropriation progress of the expropriation object is as follows: ； Among them, pro is the progress of the expropriation and demolition of the object to be expropriated and demolished. is the second land expropriation area. is the first land expropriation area. is the current demolition time. is the predicted demolition time. and are the weight coefficients of area and time respectively.

6. The demolition and expropriation visualization management method according to claim 1, characterized in that The construction of the individual interface and the regional interface includes: The individual interface takes a single expropriation object as a unit and displays the geographical information and the evaluated expropriation difficulty of a single expropriation object; the regional interface displays different types of expropriation objects in different regions, and the different types of expropriation objects include: buildings, roads, parks; Obtain the geographical information, expropriation difficulty, resident satisfaction coefficient, predicted demolition time, current demolition time and expropriation progress of multiple expropriation objects; Create an expropriation object layer and a geographical layer; the expropriation object layer includes an expropriation area layer and an expropriation progress layer; Judge whether the overall area of the geographical region included in the regional interface is less than the set scale. If so, display the geographical information of the geographical region; if not, hide the geographical information of the geographical region; According to the expropriation difficulty, perform chromaticity marking on the expropriation area through the expropriation area layer; Use a progress bar through the expropriation progress layer to display the general situation of the expropriation progress of the entire region, and the depth of the color indicates the speed of the expropriation progress.

7. A demolition and expropriation visualization management system, characterized in that, For implementing the expropriation visualization management method described in any one of claims 1 to 6, it includes: A data acquisition module for acquiring the geographical information, structural coefficient, material coefficient, equipment coefficient and current demolition time of the expropriation object; A resident satisfaction prediction model construction module for constructing a resident satisfaction prediction model according to the distance between the expropriation object and the key urban planning project, the building area and the building function type of the expropriation object, and predicting the resident satisfaction coefficient; A demolition difficulty coefficient calculation module for acquiring the structural coefficient, material coefficient and equipment coefficient of the expropriation object; An expropriation difficulty calculation module for calculating the expropriation difficulty of the expropriation object according to the demolition difficulty coefficient and the resident satisfaction coefficient; An expropriation difficulty level classification module for classifying the expropriation difficulty of the expropriation object into different levels; A demolition time prediction module for inputting the building area, building function type of the expropriation object, and the distance from the key urban planning project into a pre-trained demolition time prediction model to obtain the predicted demolition time of the expropriation object; The expropriation progress calculation module is used to calculate the expropriation progress of the expropriation object according to the first expropriated area, the second expropriated area, the predicted demolition time, and the current demolition time; The interface construction module is used to construct an individual interface and a regional interface; The expropriation visualization module is used to view the geographical information, expropriation difficulty, and expropriation progress of the expropriation object according to the individual interface and the regional interface, so as to realize the visual management of the expropriation object.

8. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the expropriation visualization management method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program. When the computer program runs, it controls the device where the computer-readable storage medium is located to execute the expropriation visualization management method according to any one of claims 1 to 6.

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