Post-earthquake medical function-oriented medical building multi-level optimization arrangement method and system

Abstract

The invention provides a post-earthquake medical function-oriented medical building multi-level optimization arrangement method and system. The method comprises the steps of obtaining attribute information of a target medical building; determining a medical function type, and establishing a multi-level coupled post-earthquake medical function evaluation model of the medical building; converting the floor arrangement scheme of the medical department into a scheme in a matrix element listing form; converting the building function constraint into a penalty mechanism, and combining the penalty mechanism with a target function corresponding to the post-earthquake medical function evaluation model of the medical building to obtain a new target function; and based on the scheme of the matrix element enumeration form and the new objective function, a medical department floor arrangement scheme with the lowest post-earthquake medical function failure probability is determined. According to the embodiment of the invention, the optimal floor arrangement scheme of the medical department in the medical building can be efficiently given, the post-earthquake medical function failure probability of the medical building is reduced, and an important reference can be provided for designing the medical building and improving the anti-seismic toughness of the medical building.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and in particular to a multi-level optimization layout method and system for medical buildings with post-earthquake medical functions. Background Art

[0002] Medical buildings are complex systems composed of multiple types of medical departments located in different planes and facades. When an earthquake occurs, the structural responses of different floors may be different, resulting in different losses of functions of departments on different floors. Therefore, optimizing the floor distribution of medical departments and keeping key departments away from floors with larger structural responses is of great significance to ensure that the medical functions of medical buildings are not interrupted after the earthquake. The existing goals of optimizing hospital layouts include reducing congestion, shortening patient waiting time, reducing patient medical access, reducing the risk of hospital infection, and improving lighting and resource utilization. Previous studies on optimizing the layout of hospital departments have mainly focused on the plane layout during daily operation and maintenance, and there have been relatively few studies on the optimization of facade layouts. The existing medical building optimization solutions have a high probability of failure of medical functions after an earthquake and cannot meet earthquake resistance requirements. Summary of the invention

[0003] To solve the above problems, an embodiment of the present invention provides a multi-level optimization layout method for medical buildings with post-earthquake medical functions, including: obtaining attribute information of a target medical building; the attribute information includes the type of medical departments in the medical building, the number of floors, the number of each type of medical departments that need to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building; determining the medical function type of the target medical building, and establishing a multi-level coupled medical building post-earthquake medical function evaluation model; the multi-level coupled medical building post-earthquake medical function evaluation model is a fault tree model established for the target medical building that considers the multi-level coupling of components, departments, and floors; converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration; converting the architectural function constraints into a penalty mechanism, and combining the penalty mechanism with the objective function corresponding to the post-earthquake medical function evaluation model of the medical building to obtain a new objective function, the objective function being used to calculate the probability of medical function failure of the medical building after an earthquake; based on the plan in the form of matrix element enumeration and the new objective function, determining the floor layout plan of the medical departments of the target medical building with the lowest probability of medical function failure after an earthquake.

[0004] The multi-level optimization layout method of medical buildings for post-earthquake medical functions provided by the embodiment of the present invention can determine the floor layout plan of medical departments when the probability of medical function failure of the medical building after an earthquake is the lowest, thereby reducing the probability of medical function failure of the medical building after an earthquake, and can provide an important reference for the design of medical buildings and improving the seismic resilience of medical buildings.

[0005] Optionally, the establishment of a multi-level coupled post-earthquake medical function evaluation model for medical buildings includes: obtaining the department composition and component composition of the target medical building; the department composition includes the medical departments required for the target medical building to meet the complete post-earthquake emergency rescue function, and the component composition includes various structural components, non-structural components and medical equipment required for the target medical building to meet the complete functions of various medical departments and the complete functions of the target medical building; establishing a department function evaluation model with component-department function coupling to associate department functions with component functions; introducing floor nodes to establish a component-department-floor multi-level coupled fault tree model as a post-earthquake medical function evaluation model.

[0006] In the embodiment of the present invention, a component-department-floor multi-level coupled fault tree model is established for the target medical building, which can calculate the probability of failure of the medical function of the medical building after an earthquake, thereby determining the failure probability of different layout schemes.

[0007] Optionally, the method further includes converting the medical building post-earthquake medical function evaluation model into the objective function; the medical building post-earthquake medical function evaluation model is a fault tree model that connects lower-layer events with upper-layer events through "AND" or "OR" logic gates; the objective function for calculating the medical building post-earthquake medical function failure probability P (Layout, EDPs) is shown in the following formula:

[0008] P(Layout,EDPs)=1–(1-P basic )×(1-P medical )

[0009] Where P basic is the failure probability of the basic functional branch in the post-earthquake functional evaluation model, P medical It is the failure probability of the medical function branch composed of different medical departments in the post-earthquake functional evaluation model.

[0010] In the embodiment of the present invention, the post-earthquake medical function evaluation model of the medical building is converted into an objective function, and the objective function can calculate the probability of failure of the medical function of the medical building after an earthquake.

[0011] Optionally, the plan of converting the floor layout plan of the medical departments of the target medical building into a plan of matrix element enumeration includes: defining a two-dimensional matrix Layout, the dimension of the matrix is ​​M×N, M is the number of categories of the medical departments of the target medical building, N is the total number of floors of the target medical building, and each element a in the matrix ij represents the number of the i-th department located on the j-th floor, a ij They are all natural numbers. Each Layout corresponds to a set of floor layout plans for medical departments, as follows:

[0012]

[0013] Under the premise of ensuring that the number of corresponding departments arranged in the medical building is fixed and the upper limit of the number of medical departments that can be accommodated on each floor remains unchanged, adjusting the number of departments arranged on different floors changes the probability of medical function failure of the medical building after the earthquake. The floor layout optimization problem of the department is transformed into a matrix element enumeration problem as follows:

[0014] Minimize P(Layout,EDPs)=1–(1-P basic )×(1-P medical )

[0015]

[0016] In the formula, Dept i is the number of rooms in the i-th category that need to be arranged; Num j is the upper limit of the number of medical departments that can be accommodated on the jth floor; M is the total number of categories of medical departments; N is the total number of floors of the medical building.

[0017] In the embodiment of the present invention, the floor layout problem of medical departments is regarded as the problem of the number of different types of medical departments arranged on different floors of the medical building, that is, the floor layout problem of medical departments in the outpatient building can be converted into a matrix element enumeration problem. Under the premise of ensuring that the number of corresponding departments arranged in the medical building is fixed and the upper limit of the number of medical departments that can be accommodated on each floor remains unchanged, the probability of medical function failure of the medical building after an earthquake can be changed by adjusting the number of departments arranged on different floors.

[0018] Optionally, converting the building function constraint into a penalty mechanism includes: converting the building function constraint into a judgment statement for judging whether the current medical department floor layout plan satisfies the building function constraint; for a plan that satisfies the building function constraint, its corresponding objective function value remains unchanged; for a plan that does not satisfy the building function constraint, a penalty is imposed to increase its corresponding objective function value.

[0019] In the embodiment of the present invention, the building function constraint is converted into a penalty mechanism, and the corresponding objective function value is increased for the layout scheme that does not meet the building function constraint, so that it is at a disadvantage when compared with other layout schemes.

[0020] Optionally, determining the floor layout plan of medical departments in the target medical building with the lowest probability of medical function failure after an earthquake includes: based on the penalty mechanism, screening the floor layout plans of medical departments that meet the building function constraints; calculating the screened floor layout plans of medical departments based on a genetic algorithm, and determining the floor layout plan of medical departments in the target medical building with the lowest probability of medical function failure after an earthquake; the input information of the genetic algorithm is set to the types of medical departments in the target medical building, the number of floors, the number of each type of medical departments that need to be arranged, and the upper limit of the number of medical departments that can be accommodated on each floor; the output information of the genetic algorithm is the minimum probability of medical function failure after an earthquake in the target medical building, the corresponding floor layout plan of medical departments, and the algorithm running time.

[0021] In the embodiment of the present invention, a genetic algorithm is used to carry out calculations, and a medical department floor layout plan can be quickly obtained when the probability of medical function failure of the medical building after an earthquake is the lowest.

[0022] Optionally, the building function constraint is that the medical department needs to meet specific floor layout conditions in the medical building based on the reasonable layout of the medical building, convenient transportation of medical supplies and timely treatment of patients.

[0023] The embodiments of the present invention provide specific contents of building function constraints of some medical departments in a medical building represented by an outpatient building. Based on the above building function constraints, necessary restrictions can be imposed on the floor layout plan of the medical departments.

[0024] Optionally, obtaining the building function constraints of the target medical building includes: determining the function type and department composition of the target medical building; and determining the constraints on the floor layout of the medical departments through literature sorting and / or field research.

[0025] The embodiments of the present invention provide possible ways to obtain building function constraints, and the building function constraints for specific medical buildings are correspondingly different.

[0026] The embodiment of the present invention provides a medical building multi-level optimization layout system for post-earthquake medical functions, including: an acquisition module, used to acquire attribute information of a target medical building; the attribute information includes the type of medical departments in the medical building, the number of floors, the number of each type of medical departments that need to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building; an evaluation model establishment module, used to determine the medical function type of the target medical building, and establish a multi-level coupled medical building post-earthquake medical function evaluation model; the multi-level coupled medical building post-earthquake medical function evaluation model is a consideration component established for the target medical building. -Department-floor multi-level coupled fault tree model; a matrix conversion module, used to convert the floor layout plan of the medical department of the target medical building into a plan in the form of matrix element enumeration; an objective function determination module, used to convert the building function constraint into a penalty mechanism, and combine the penalty mechanism with the objective function corresponding to the post-earthquake medical function evaluation model of the medical building to obtain a new objective function, and the objective function is used to calculate the probability of medical function failure of the medical building after the earthquake; a plan determination module, used to determine the floor layout plan of the medical department with the lowest probability of medical function failure of the target medical building after the earthquake based on the plan in the form of matrix element enumeration and the new objective function.

[0027] An embodiment of the present invention provides an electronic device, comprising: a processor and a storage device; the storage device stores a computer program, and the computer program executes any one of the above methods when executed by the processor.

[0028] The multi-level optimization layout system and electronic equipment for medical buildings with post-earthquake medical functions provided by the embodiments of the present invention can achieve the same technical effect as the multi-level optimization layout method for medical buildings with post-earthquake medical functions described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1 A flow chart of a multi-level optimization layout method for medical buildings with post-earthquake medical functions provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of architectural function constraints for medical departments in an outpatient building provided by an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the post-earthquake emergency rescue function division of an outpatient building provided by an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the floor layout of typical medical departments in an outpatient building provided by an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of a multi-level coupled medical building post-earthquake medical function evaluation model provided by an embodiment of the present invention (some branches are not fully shown);

[0035] Figure 6 A schematic diagram of the floor structure response of an outpatient building provided by an embodiment of the present invention;

[0036] Figure 7 A pseudo code schematic diagram of the building function constraints of the operating room in the outpatient building provided by the embodiment of the present invention;

[0037] Figure 8 A schematic diagram showing the comparison of the outpatient department layout before and after optimization provided by an embodiment of the present invention;

[0038] Fig. 9 A schematic structural diagram of a post-earthquake medical function evaluation device for a medical building provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] Medical buildings are of vital importance because they must meet the needs of both daily medical services and emergency rescue after sudden disasters such as earthquakes. However, data from previous post-earthquake periods show that many medical buildings find it difficult to maintain necessary medical functions after an earthquake. Earthquakes in history have shown that the interruption of medical functions in medical buildings after an earthquake poses a great challenge to rescue work in disaster areas. Medical buildings are complex systems consisting of multiple types of medical departments located on different planes and facades. When an earthquake occurs, the structural responses of different floors are different, resulting in different failure probabilities of department functions on different floors. Therefore, optimizing the floor layout of departments and keeping key departments away from floors with larger structural responses may reduce the failure probability of medical functions after an earthquake, which is crucial to ensuring the continuity of medical functions in medical buildings after an earthquake. However, existing research on optimizing the layout of hospital departments mainly focuses on the plane layout during daily operation and maintenance, and relatively little research has been done on optimizing the facade layout.

[0041] To improve the above problems, the embodiment of the present invention provides a multi-level optimization layout method for medical buildings oriented to post-earthquake medical functions, so as to enhance the continuity of medical functions of medical buildings after earthquakes. The embodiment of the present invention can efficiently provide the optimal floor layout plan for medical departments in medical buildings, reduce the probability of failure of medical functions of medical buildings after earthquakes, and provide an important reference for the design of medical buildings and improving the seismic resilience of medical buildings.

[0042] This embodiment provides a multi-level optimization layout method for medical buildings with post-earthquake medical functions. Figure 1 The flowchart of the post-earthquake medical function evaluation method of the medical building shown in the figure mainly includes the following steps:

[0043] S102, obtaining attribute information of the target medical building.

[0044] The attribute information includes the types of medical departments in the medical building, the number of floors, the number of each type of medical departments that need to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building.

[0045] Among them, the types of medical departments in the medical building, the number of floors, the number of each type of medical department that needs to be arranged, and the upper limit of the number of medical departments that can be accommodated on each floor can be obtained through field research on the target medical building. The architectural function constraints of the medical departments in the target medical building can be obtained through literature sorting, expert consultation and field research on the target medical building. The attribute information of the target medical building can be obtained through real-time research on the target medical building, or it can be from a pre-established database.

[0046] Exemplarily, the above-mentioned building function constraints are that in medical buildings, based on the reasonable layout of medical buildings, convenient transportation of medical supplies and timely treatment of patients, medical departments need to meet specific floor layout conditions, etc. Specifically, obtaining the above-mentioned building function constraints of the target medical building includes: determining the functional type and department composition of the target medical building; and determining the constraints on the floor layout of the medical department through literature sorting and / or field research.

[0047] S104, determining the medical function type of the target medical building, and establishing a multi-level coupled medical building post-earthquake medical function evaluation model.

[0048] The target medical building is functionally divided to determine the composition of the medical function of the medical building after the earthquake. Taking the outpatient building as an example, its functional division can be: basic function, inspection function, diagnosis and treatment function, admission function and supply function. The above-mentioned multi-level coupled functional evaluation model refers to a fault tree model that considers the multi-level coupling of components, departments and floors, and its floor nodes can be obtained from the given department floor layout plan. Specifically, a multi-level coupled medical building post-earthquake medical function evaluation model can be established in the following manner, including:

[0049] First, the department composition and component composition of the target medical building are obtained. The department composition includes the medical departments required by the target medical building to meet the complete post-earthquake emergency rescue function, and the component composition includes the various structural components, non-structural components and medical equipment required by the target medical building to meet the complete functions of various medical departments and the complete functions of the target medical building;

[0050] Secondly, a department function evaluation model with component-department function coupling is established to associate department functions with component functions;

[0051] Then, the above-mentioned floor nodes were introduced to establish a multi-level coupled fault tree model of components, departments and floors as a post-earthquake medical function evaluation model.

[0052] In this embodiment, the failure probability of the component can be input as the underlying event, and combined with the fault tree model, the failure probability of the medical function of the medical building after the earthquake can be calculated. For example, according to the logic gates connecting different events in the above fault tree model, the objective function of the department layout optimization problem can be obtained.

[0053] S106, converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration.

[0054] In this embodiment, the floor layout problem of medical departments is regarded as the number problem of different types of medical departments arranged on different floors of medical buildings.

[0055] Define a two-dimensional matrix Layout, the dimension of the matrix is ​​M×N, M is the number of categories of medical departments in the target medical building, N is the total number of floors of the target medical building, and each element a in the matrix ij represents the number of the i-th department located on the j-th floor, a ij are all natural numbers, as shown in the following formula.

[0056]

[0057] At this point, each layout corresponds to a set of floor layout plans for medical departments. Under the premise of ensuring that the number of corresponding departments arranged in the medical building is fixed and the upper limit of the number of medical departments that can be accommodated on each floor remains unchanged, by adjusting the number of departments arranged on different floors, the probability of medical function failure of the medical building after the earthquake can be changed. Therefore, the department layout optimization problem is transformed into a matrix element enumeration problem as shown in the following formula.

[0058]

[0059] In the formula, Dept i is the number of rooms in the i-th category that need to be arranged; Num j is the upper limit of the number of medical departments that can be accommodated on the jth floor; M is the total number of categories of medical departments; N is the total number of floors of the medical building, P basic is the failure probability of the basic functional branch in the above post-earthquake functional evaluation model, P medical is the failure probability of the medical function branch composed of different medical departments in the above post-earthquake functional evaluation model.

[0060] S108, converting the above-mentioned building function constraints into a penalty mechanism, and combining the penalty mechanism with the objective function corresponding to the medical function evaluation model of the medical building after the earthquake to obtain a new objective function. The objective function is used to calculate the probability of failure of the medical function of the medical building after the earthquake.

[0061] Specifically, the building function constraints are converted into a penalty mechanism in the algorithm, and the department layout plan that meets the building function constraints is screened. The conversion of the building function constraints into a penalty mechanism can be performed in the following way:

[0062] The above-mentioned building function constraints are converted into judgment statements to determine whether the current medical department floor layout plan meets the building function constraints; for the plan that meets the building function constraints, its corresponding objective function value remains unchanged; for the plan that does not meet the building function constraints, it is penalized and its corresponding objective function value is increased, so that it is at a disadvantage when compared with other department layout plans.

[0063] In this embodiment, the medical function evaluation model of the medical building after the earthquake is converted into an objective function. Optionally, the medical function evaluation model of the medical building after the earthquake is a fault tree model that connects the lower event and the upper event through the logic gate of "AND" or "OR". The objective function for calculating the medical function failure probability P(Layout,EDPs) of the medical building after the earthquake is shown as follows:

[0064] P(Layout, EDPs) = 1 – (1 - P basic )×(1 - P medical ) (3)

[0065] Where P basic is the failure probability of the basic functional branch in the functional evaluation model, P medical It is the failure probability of the medical function branch composed of different medical departments in the functional evaluation model.

[0066] Furthermore, the probability of medical function failure of the medical building after an earthquake corresponding to the corresponding layout scheme Layout can be calculated based on the objective function.

[0067] S110, based on the scheme in the form of matrix element enumeration and the new objective function, determine the medical department floor layout scheme with the lowest probability of medical function failure in the target medical building after the earthquake.

[0068] Specifically, the probability of medical function failure of the medical building after an earthquake corresponding to the corresponding department layout plan is calculated according to the new objective function.

[0069] First, based on the penalty mechanism, the floor layout of medical departments that meets the functional constraints of the building is screened;

[0070] Then, the screened medical department floor layout plans were calculated based on the genetic algorithm to determine the medical department floor layout plan when the probability of medical function failure after the earthquake was the lowest in the target medical building.

[0071] Exemplarily, a genetic algorithm framework is used to carry out calculations to quickly obtain the floor layout plan of medical departments when the probability of medical function failure after an earthquake in a medical building is the lowest. Specifically, the input information of the genetic algorithm is set as the type of medical department in the target medical building, the number of floors, the number of each type of medical department that needs to be arranged, and the upper limit of the number of medical departments that can be accommodated on each floor; the output information of the genetic algorithm is the minimum failure probability of the medical function of the target medical building after an earthquake, the corresponding floor layout plan of the medical department, and the algorithm running time. In addition, the operating parameters of the algorithm are set, such as: the maximum evolutionary algebra, the evolutionary threshold, and the evolutionary stagnation algebra as the algorithm optimization parameters.

[0072] The genetic algorithm can be a genetic algorithm that enhances elite retention, or can be other effective genetic algorithms.

[0073] The multi-level optimization layout method of medical buildings for post-earthquake medical functions provided by the embodiment of the present invention obtains the attribute information and functional division of the medical buildings, establishes a multi-level coupled post-earthquake medical function evaluation model for medical buildings, can calculate the probability of post-earthquake medical function failure of the medical building when a given department floor layout plan is given, and converts the function evaluation model into an objective function; further, the floor layout problem of the medical department is converted into a matrix element enumeration problem, and the building function constraint is converted into a penalty mechanism. Combined with the objective function, the medical department floor layout plan when the probability of post-earthquake medical function failure of the medical building is the lowest is quickly determined, thereby reducing the probability of post-earthquake medical function failure of the medical building, and can provide an important reference for the design of medical buildings and improving the seismic resilience of medical buildings.

[0074] Based on the above-mentioned embodiment, this embodiment provides an example of applying the multi-level optimization layout method of medical buildings for post-earthquake medical functions to optimize and display the layout of medical building departments, which can be specifically performed with reference to the following steps:

[0075] Step 1: Obtain the attribute information of the medical building. The types of medical departments M = 11, the number of floors N = 9, and the number of Depts required for each type of medical department i As shown in formula (4), the upper limit of the number of medical departments that can be accommodated on each floor is Num j As shown in formula (5), and the architectural function constraints of medical departments in medical buildings, Figure 2 A schematic diagram of the architectural functional constraints of the medical departments in the outpatient building is shown.

[0076] Dept i = [3, 1, 1, 51, 52, 28, 7, 1, 3, 13, 6] 11 (4)

[0077] Num j = [8, 19, 30, 3, 18, 41, 1, 46, 0]9 (5)

[0078] Step 2: Determine the functional type of medical buildings and establish a multi-level coupled medical building post-earthquake medical function evaluation model.

[0079] The target medical building is, for example, an outpatient building, whose functions to meet post-earthquake emergency rescue functions can be divided into: basic functions, inspection functions, diagnosis and treatment functions, admission functions, and supply functions. Figure 3 A schematic diagram showing the post-earthquake emergency rescue function division of the outpatient building is shown.

[0080] The current floor layout of the outpatient department is as follows: Figure 4Taking the current department floor layout plan of the outpatient building as an example, a corresponding multi-level coupled medical building post-earthquake medical function evaluation model was established. Figure 5 The schematic diagram of the post-earthquake medical function evaluation model of a multi-level coupled medical building is shown (some branches are not fully displayed), where E1: stair damage, E2: elevator damage, E3: corridor damage, E4: air conditioning unit failure, E5: distribution box damage, E6: external power supply damage, E7: emergency generator damage, E8: external water source damage, E9: water tank damage, E10: water pump damage. The structural response of the outpatient building under rare earthquake conditions was obtained through elastic-plastic time-history analysis and calculation. Figure 6 The schematic diagram of the floor structure response of the outpatient building is shown. The failure probability of its medical function after the earthquake is further calculated.

[0081] Step 3: Convert the functional evaluation model into an objective function.

[0082] like Figure 5 As shown in Figure 1, the functional evaluation model is a fault tree model that connects different events through an "AND" gate or an "OR" gate. Among them, the failure probability P1 of the upper event of the two events E1 and E2 connected by the "AND" gate can be calculated by formula (6); the failure probability P2 of the upper event of the two events E3 and E4 connected by the "OR" gate can be calculated by formula (7).

[0083] P1 = P(E1) × P(E2) (6)

[0084] P2 = 1-(1-P(E3))×(1-P(E4)) (7)

[0085] Where P(E1) represents the probability of occurrence of event E1.

[0086] Combining the fault tree model at the component-department level, the probability of post-earthquake medical function failure when the corresponding single medical department is located on different floors can be obtained through equations (6) and (7). Define the two-dimensional matrix Matrix department (EDPs), the dimension and number of elements of the matrix are consistent with the Layout matrix, and each element k in the matrix ij It represents the probability of post-earthquake medical function failure when a single department of the i-th category is located on the j-th floor, as shown in formula (8).

[0087]

[0088] Furthermore, the basic functional branches of the outpatient building are connected by various components through "AND" gates or "OR" gates, and their functional failure probability P basicIt can be calculated by formula (6) and formula (7); in the medical function branches including inspection function, diagnosis and treatment function, admission function and supply function, each branch contains different types of medical departments, and different types of medical departments are connected by "OR" gates. The functional failure probability P medical It can be calculated by formula (9).

[0089]

[0090] Where Department i Indicates i The probability of post-earthquake medical function failure of similar medical departments is connected by "AND" gates. Therefore, given the matrix Matrix department (EDPs) and Layout, Department i It can be calculated by formula (10).

[0091]

[0092] The basic function branches and various medical function branches are connected through the "OR" gate, and the functions constitute the post-earthquake medical function of the medical building. Therefore, the failure probability of the medical function of the medical building after the earthquake P (Layout, EDPs) can be calculated by formula (3), which is the objective function.

[0093] Step 4: Convert the floor layout problem of the medical departments in the outpatient building into a matrix element enumeration problem. The matrix Layout corresponding to the current floor layout plan of the outpatient building is shown in Formula (11), and the converted matrix element enumeration problem is shown in Formula (2).

[0094]

[0095] Step 5: Convert the building function constraints of the medical department into a penalty mechanism. Take the operating room as an example: considering the long communication route and the difficulty of transporting materials, the operating room should not be arranged on the ground floor or the top floor. The corresponding pseudo code can be found in Figure 7 The pseudo code diagram of the functional constraints of the operating room building in the outpatient building is shown.

[0096] Step 6: Use the genetic algorithm with enhanced elite retention to calculate the optimal solution for the floor layout of medical departments. Set the input information of the algorithm as M, N, Dept i , Num j; Set the output information of the algorithm to be the minimum failure probability of the outpatient building's medical function after an earthquake, the corresponding department layout plan, and the algorithm running time. Calculate the above algorithm architecture and obtain the floor layout plan of the medical department when the probability of failure of the outpatient building's medical function after an earthquake is the lowest, as shown in formula (12). At this time, the failure probability of the outpatient building is 29.73%. Comparison of outpatient building department optimization before and after Figure 8 The diagram shows the comparison of the probability of functional failure before and after the optimization of the layout of the outpatient department. Among them, CT: computed tomography room (CT room), Lab: laboratory, EEG: electroencephalogram room, IMCD: internal medicine clinic, SCD: surgical clinic, Ward: general ward, OR: operating room, ICU: intensive care unit, SSD: surgical supply department, ESR: instrument storage room, Pharm: pharmacy.

[0097]

[0098] The multi-level optimization layout method of medical buildings for post-earthquake medical functions provided by the embodiment of the present invention first obtains the attribute information of the medical building, including: the type of medical department, the number of floors, the number of each type of medical department to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building. Secondly, the functional type of the medical building is determined, and a multi-level coupled medical building post-earthquake medical function evaluation model is established to calculate the probability of post-earthquake medical function failure of the medical building when the floor layout plan of the department is given, and the function evaluation model is further converted into an objective function. Then, the floor layout problem of the medical department is converted into a matrix element enumeration problem. Finally, the building function constraint is converted into a penalty mechanism, and combined with the objective function, a genetic algorithm is applied to quickly determine the floor layout plan of the medical department when the probability of post-earthquake medical function failure of the medical building is the lowest. The embodiment of the present invention can efficiently provide the optimal floor layout plan of the medical department in the medical building, reduce the probability of post-earthquake medical function failure of the medical building, and provide an important reference for the design of medical buildings and improving the seismic toughness of medical buildings.

[0099] An embodiment of the present invention provides a multi-level optimized layout system of medical buildings for post-earthquake medical functions. Fig. 9 A schematic diagram of the structure of a multi-level optimized layout system of a medical building for post-earthquake medical functions provided by an embodiment of the present invention is shown, the system comprising:

[0100] An acquisition module 91 is used to acquire attribute information of a target medical building; the attribute information includes the types of medical departments in the medical building, the number of floors, the number of each type of medical department that needs to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building;

[0101] An evaluation model establishment module 92 is used to determine the medical function type of the target medical building and establish a multi-level coupled medical building post-earthquake medical function evaluation model; the multi-level coupled medical building post-earthquake medical function evaluation model is a fault tree model established for the target medical building and taking into account the multi-level coupling of components, departments, and floors;

[0102] A matrix conversion module 93, used for converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration;

[0103] An objective function determination module 94 is used to convert the building function constraint into a penalty mechanism, and combine the penalty mechanism with the objective function corresponding to the medical building post-earthquake medical function evaluation model to obtain a new objective function, wherein the objective function is used to calculate the probability of failure of the medical building post-earthquake medical function;

[0104] The scheme determination module 95 is used to determine the medical department floor layout scheme with the lowest probability of medical function failure of the target medical building after the earthquake based on the scheme in the form of matrix element enumeration and the new objective function.

[0105] The post-earthquake medical function evaluation system for the medical building provided in this embodiment can efficiently provide the optimal floor layout plan for the medical departments in the medical building, reduce the probability of medical function failure of the medical building after an earthquake, and provide an important reference for the design of medical buildings and improving the seismic resilience of medical buildings.

[0106] The post-earthquake medical function evaluation system for the medical building provided in this embodiment has the same implementation principle and technical effects as those in the aforementioned embodiment. For the sake of brief description, for matters not mentioned in the system embodiment, reference may be made to the corresponding contents in the aforementioned method embodiment.

[0107] An embodiment of the present invention provides an electronic device, which includes a processor and a storage device. The storage device stores a computer program that can be run on the processor. When the processor executes the computer program, the steps of the method provided in the above embodiment are implemented.

[0108] An embodiment of the present invention provides a computer-readable medium, wherein the computer-readable medium stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the method described in the above embodiment.

[0109] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the control device through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it may include the processes of the above-mentioned method embodiments, wherein the storage medium may be a memory, a disk, an optical disk, etc.

[0110] In this article, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0111] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0112] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-level optimization layout method for medical buildings with post-earthquake medical functions, characterized in that: include: Acquire attribute information of the target medical building; the attribute information includes the types of medical departments in the medical building, the number of floors, the number of each type of medical department that needs to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building; Determine the medical function type of the target medical building, and establish a multi-level coupled medical building post-earthquake medical function evaluation model; the multi-level coupled medical building post-earthquake medical function evaluation model is a fault tree model established for the target medical building and considering the multi-level coupling of components, departments, and floors; Converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration; Converting the building function constraint into a penalty mechanism, and combining the penalty mechanism with the objective function corresponding to the medical building post-earthquake medical function evaluation model to obtain a new objective function, wherein the objective function is used to calculate the probability of medical building post-earthquake medical function failure; Based on the scheme in the form of matrix element enumeration and the new objective function, a medical department floor layout scheme with the lowest probability of medical function failure in the target medical building after an earthquake is determined.

2. The method according to claim 1, characterized in that The establishment of a multi-level coupled medical building post-earthquake medical function evaluation model comprises: Obtaining the department composition and component composition of the target medical building; the department composition includes the medical departments required for the target medical building to meet the complete post-earthquake emergency rescue function, and the component composition includes various structural components, non-structural components and medical equipment required for the target medical building to meet the complete functions of various medical departments and the complete functions of the target medical building; Establish a department function evaluation model that couples component and department functions, and associate department functions with component functions; Floor nodes were introduced to establish a multi-level coupled fault tree model of components, departments and floors as a post-earthquake medical function evaluation model.

3. The method according to claim 1, characterized in that The method further includes converting the medical building post-earthquake medical function evaluation model into the objective function; The post-earthquake medical function evaluation model of the medical building is a fault tree model that connects lower-level events with upper-level events through "AND" or "OR" logic gates; the objective function for calculating the post-earthquake medical function failure probability P(Layout,EDPs) of the medical building is as follows: P(Layout,EDPs)=1–(1-P basic )×(1-P medical ) Where P basic is the failure probability of the basic functional branch in the post-earthquake functional evaluation model, P medical It is the failure probability of the medical function branch composed of different medical departments in the post-earthquake functional evaluation model.

4. The method according to claim 3, characterized in that The method of converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration includes: Define a two-dimensional matrix Layout, the dimension of the matrix is ​​M×N, M is the number of categories of medical departments in the target medical building, N is the total number of floors of the target medical building, and each element a in the matrix ij represents the number of the i-th department located on the j-th floor, a ij They are all natural numbers. Each Layout corresponds to a set of floor layout plans for medical departments, as follows: Under the premise of ensuring that the number of corresponding departments arranged in the medical building is fixed and the upper limit of the number of medical departments that can be accommodated on each floor remains unchanged, adjusting the number of departments arranged on different floors changes the probability of medical function failure of the medical building after the earthquake. The floor layout optimization problem of the department is transformed into a matrix element enumeration problem as follows: Minimize P(Layout,EDPs)=1–(1-P basic )×(1-P medical ) In the formula, Dept i is the number of rooms in the i-th category that need to be arranged; Num j is the upper limit of the number of medical departments that can be accommodated on the jth floor; M is the total number of categories of medical departments; N is the total number of floors of the medical building.

5. The method according to claim 1, characterized in that: The converting of the building function constraint into a penalty mechanism comprises: Converting the building function constraint into a judgment statement to determine whether the current medical department floor layout plan satisfies the building function constraint; For the schemes that meet the building function constraints, the corresponding objective function values ​​remain unchanged; for the schemes that do not meet the building function constraints, penalties are imposed to increase the corresponding objective function values.

6. The method according to claim 1, characterized in that The determining of the medical department floor layout plan with the lowest probability of medical function failure of the target medical building after an earthquake includes: Based on the penalty mechanism, screen the floor layout plan of medical departments that meets the building function constraints; The screened medical department floor layout plans are calculated based on a genetic algorithm to determine the medical department floor layout plan of the target medical building when the probability of medical function failure after an earthquake is the lowest; the input information of the genetic algorithm is set to be the types of medical departments in the target medical building, the number of floors, the number of each type of medical departments that need to be arranged, and the upper limit of the number of medical departments that can be accommodated on each floor; the output information of the genetic algorithm is the minimum probability of medical function failure after an earthquake in the target medical building, the corresponding medical department floor layout plan, and the algorithm running time.

7. The method according to claim 1, characterized in that The building function constraint is that in a medical building, based on the reasonable layout of the medical building, the convenient transportation of medical supplies and the timely treatment of patients, the medical department needs to meet specific floor layout conditions.

8. The method according to claim 7, characterized in that The obtaining of the architectural function constraints of the target medical building includes: Determine the functional type and department composition of the target medical building; Determine the constraints on floor layout of medical departments through literature review and / or field research.

9. A multi-level optimization layout system for medical buildings with post-earthquake medical functions, characterized in that: include: An acquisition module, used to acquire attribute information of a target medical building; the attribute information includes the types of medical departments in the medical building, the number of floors, the number of each type of medical department that needs to be arranged, the upper limit of the number of medical departments that can be accommodated on each floor, and the architectural function constraints of the medical departments in the medical building; An evaluation model establishment module is used to determine the medical function type of the target medical building and establish a multi-level coupled medical building post-earthquake medical function evaluation model; the multi-level coupled medical building post-earthquake medical function evaluation model is a fault tree model established for the target medical building and taking into account the multi-level coupling of components, departments, and floors; A matrix conversion module, used for converting the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration; An objective function determination module, used for converting the building function constraint into a penalty mechanism, and combining the penalty mechanism with the objective function corresponding to the medical building post-earthquake medical function evaluation model to obtain a new objective function, wherein the objective function is used to calculate the probability of failure of the medical function of the medical building after an earthquake; A scheme determination module is used to determine the medical department floor layout scheme with the lowest probability of medical function failure of the target medical building after an earthquake based on the scheme in the form of matrix element enumeration and the new objective function.

10. An electronic device, characterized in that: include: processor and storage device; The storage device stores a computer program, which, when executed by the processor, performs the method according to any one of claims 1 to 8.

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