Multi-level Optimization Layout Method and System of Medical Buildings for Post-earthquake Medical Functions

Abstract

The present invention provides a multi-level optimized layout method and system for a medical building oriented to post-earthquake medical functions. The method includes: obtaining the attribute information of a target medical building; determining the types of medical functions and establishing a multi-level coupled post-earthquake medical function evaluation model for the medical building; converting the floor layout plan of medical departments into a plan in the form of matrix element enumeration; converting the building function constraints into a penalty mechanism, and obtaining a new objective function by combining the penalty mechanism with the objective function corresponding to the post-earthquake medical function evaluation model of the medical building; and determining the floor layout plan of medical departments with the lowest post-earthquake medical function failure probability based on the plan in the form of matrix element enumeration and the new objective function. Embodiments of the present invention can efficiently give the optimal floor layout plan of medical departments in a medical building, reduce the post-earthquake medical function failure probability of the medical building, and provide an important reference for medical building design and improving the seismic resilience of medical buildings.

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 method for establishing a post-earthquake medical function evaluation model with multi-level coupling 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 relief 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 function 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 and establishing a component-department-floor multi-level coupling fault tree model as the post-earthquake medical function evaluation model.

[0006] In the embodiment of the present invention, a component-department-floor multi-level coupling fault tree model is established for the target medical building, which can calculate the failure probability of the post-earthquake medical function of the medical building, so as to determine the high and low failure probabilities of different layout schemes.

[0007] Optionally, the method further includes converting the post-earthquake medical function evaluation model of the medical building 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 and upper-level events through logic gates of "AND" or "OR"; the objective function for calculating the post-earthquake medical function failure probability P(Layout, EDPs) of the medical building is shown as follows:

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

[0009] In the formula, P basic is the failure probability of the basic function branch in the post-earthquake function evaluation model, and P medical is the failure probability of the medical function branch composed of different medical departments in the post-earthquake function 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 this objective function can calculate the post-earthquake medical function failure probability of the medical building.

[0011] Optionally, the method for converting the floor layout scheme of the medical departments of the target medical building into a matrix element listing form includes: defining 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, and N is the total number of floors of the target medical building. Each element a ij in the matrix represents the number of the i-th category of departments located on the j-th floor, and a ij are all natural numbers. Each Layout corresponds to a set of floor layout schemes of medical departments, as follows:

[0012]

[0013] On 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 each floor can accommodate remains unchanged, adjusting the number arrangement of departments on different floors changes the probability of the medical function failure of the medical building after an earthquake. The problem of optimizing the floor arrangement of departments is transformed into a problem of listing matrix elements 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 the i-th type of department to be arranged; Num j is the upper limit of the number of medical departments that the j-th floor can accommodate; M is the total number of types of medical departments; N is the total number of floors of the medical building.

[0017] In the embodiment of the present invention, the problem of the floor arrangement 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 problem of the floor arrangement of medical departments in the outpatient building can be transformed into a problem of listing matrix elements. On 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 each floor can accommodate remains unchanged, by adjusting the number arrangement of departments on different floors, the probability of the medical function failure of the medical building after an earthquake can be changed.

[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 floor arrangement plan of medical departments meets the building function constraint; for the plan that meets the building function constraint, the corresponding objective function value remains unchanged; for the plan that does not meet 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. For the layout plan that does not meet the building function constraint, its corresponding objective function value is increased, so that it is at a disadvantage when compared with other layout plans.

[0020] Optionally, the determination of the floor layout plan of medical departments with the lowest probability of post-earthquake medical function failure for the target medical building includes: screening the floor layout plans of medical departments that meet the building function constraints based on the penalty mechanism; performing calculations on the screened floor layout plans of medical departments using a genetic algorithm to determine the floor layout plan of medical departments when the probability of post-earthquake medical function failure of the target medical building is the lowest; the input information of the genetic algorithm is set as the types of medical departments in the target medical building, the number of floors, the number of each type of medical department to be arranged, and the upper limit of the number of medical departments that each floor can accommodate; the output information of the genetic algorithm is the minimum failure probability of the post-earthquake medical function of 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 for calculation, and the floor layout plan of medical departments with the lowest probability of post-earthquake medical function failure of the medical building can be quickly obtained.

[0022] Optionally, 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 departments need to meet specific floor layout conditions.

[0023] In the embodiment of the present invention, the specific content of the building function constraints of some medical departments in a medical building represented by an outpatient building is provided, and the floor layout plan of medical departments can be restricted as required based on the above building function constraints.

[0024] Optionally, the obtaining of the building function constraints of the target medical building includes: determining the function type and department composition of the target medical building; determining the constraint conditions for the floor layout of medical departments through literature sorting and / or on-site investigation.

[0025] In the embodiment of the present invention, possible ways to obtain building function constraints are provided, and the building function constraints for a specific medical building are correspondingly different.

[0026] An embodiment of the present invention provides a multi-level optimized layout system for a medical building oriented to post-earthquake medical functions, including: an acquisition module for acquiring 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 to be arranged, the upper limit of the number of medical departments that each floor can accommodate, and the architectural function constraints of the medical departments in the medical building; an evaluation model establishment module for determining the medical function type of the target medical building and establishing a post-earthquake medical function evaluation model for the multi-level coupling of the medical building; the post-earthquake medical function evaluation model for the multi-level coupling of the medical building is a fault tree model considering the multi-level coupling of components - departments - floors established for the target medical building; a matrix transformation module for transforming the floor layout plan of the medical departments of the target medical building into a plan in the form of matrix element enumeration; a target function determination module for transforming the architectural function constraints into a penalty mechanism and obtaining a new target function by combining the penalty mechanism with the target function corresponding to the post-earthquake medical function evaluation model of the medical building, and the target function is used to calculate the probability of failure of the post-earthquake medical function of the medical building; a plan determination module for determining the floor layout plan of the medical departments of the target medical building with the lowest probability of failure of the post-earthquake medical function based on the plan in the form of matrix element enumeration and the new target function.

[0027] An embodiment of the present invention provides an electronic device, including: a processor and a storage device; a computer program is stored on the storage device, and the computer program executes the method described in any one of the above when being run by the processor.

[0028] The multi-level optimized layout system for a medical building oriented to post-earthquake medical functions and the electronic device provided by the embodiment of the present invention can achieve the same technical effects as the above-mentioned multi-level optimized layout method for a medical building oriented to post-earthquake medical functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0030] Figure 1 It is a flowchart of a multi-level optimized layout method for a medical building oriented to post-earthquake medical functions provided by an embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the architectural function constraints of 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] Figure 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 address the above issues, an 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 post-earthquake medical functions of medical buildings. The embodiment of the present invention can efficiently give the optimal floor layout plan of medical departments in medical buildings, reduce the probability of post-earthquake medical function failure of medical buildings, and provide important references for medical building design and improving the seismic resilience of medical buildings.

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

[0043] S102, obtain the 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 department to be arranged, the upper limit of the number of medical departments that each floor can accommodate, and the architectural function constraints of 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 to be arranged, and the upper limit of the number of medical departments that each floor can accommodate can be obtained through on-site investigations of the target medical building. The architectural function constraints of medical departments in the target medical building can be obtained through methods such as literature sorting, expert consultation, and on-site investigations of the target medical building. The attribute information of the target medical building can be obtained through on-site investigations of the target medical building in real time, or can be from a pre-established database.

[0046] Exemplarily, the above architectural function constraints are 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, medical departments need to meet specific floor layout conditions, etc. Specifically, obtaining the above architectural function constraints of the target medical building includes: determining the function type and department composition of the target medical building; determining the constraint conditions for the floor layout of medical departments through literature sorting and / or on-site investigations.

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

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

[0049] First, obtain 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 relief functions, 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;

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

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

[0052] In this embodiment, the failure probability of components can be used as the input of the bottom event, and the failure probability of the post-earthquake medical function of the medical building can be calculated in combination with the fault tree model. Exemplarily, 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, convert 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 quantity problem of different types of medical departments arranged on different floors of the medical building. Further,

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

[0056]

[0057] At this time, each Layout corresponds to a floor layout plan for a group of medical departments. On 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 each floor can accommodate remains unchanged, by adjusting the number of departments arranged on different floors, the probability of medical function failure after an earthquake in the medical building can be changed. Therefore, the problem of optimizing the department layout is transformed into the problem of listing matrix elements as shown in the following formula.

[0058]

[0059] In the formula, Dept i is the number of the i-th type of department to be arranged; Num j is the upper limit of the number of medical departments that the j-th floor can accommodate; M is the total number of types of medical departments; N is the total number of floors in the medical building, and P basic is the failure probability of the basic function branch in the above post-earthquake function evaluation model, and P medical is the failure probability of the medical function branch composed of different medical departments in the above post-earthquake function evaluation model.

[0060] S108. Convert the above building function constraints 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. This objective function is used to calculate the probability of medical function failure after an earthquake in the medical building.

[0061] Specifically, convert the building function constraints into a penalty mechanism in the algorithm, and screen the department layout plan Layout that meets the building function constraints. The conversion of the building function constraints into a penalty mechanism can be executed in the following manner:

[0062] Convert the above building function constraints into a judgment statement to determine whether the current floor layout plan of medical departments meets the building function constraints; for the plan that meets the building function constraints, the corresponding objective function value remains unchanged; for the plan that does not meet the building function constraints, impose a penalty to increase its corresponding objective function value, so that it is at a disadvantage when compared with other department layout plans Layout.

[0063] In this embodiment, the post-earthquake medical function evaluation model of the medical building is converted into an objective function. Optionally, the above post-earthquake medical function evaluation model of the medical building is a fault tree model that connects lower-level events and upper-level events through logic gates of "AND" or "OR". The objective function for calculating the probability of medical function failure P(Layout, EDPs) after an earthquake in the medical building is shown in the following formula:

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

[0065] In the formula, P basic is the failure probability of the basic function branch in the function evaluation model, and P medical is the failure probability of the medical function branch composed of different medical departments in the function evaluation model.

[0066] Furthermore, the failure probability of the post-earthquake medical function of the corresponding layout plan Layout of the medical building can be calculated according to the objective function.

[0067] S110. Based on the plan in the form of matrix element enumeration and the new objective function, determine the floor layout plan of the medical departments of the target medical building with the lowest post-earthquake medical function failure probability.

[0068] Specifically, calculate the failure probability of the post-earthquake medical function of the corresponding department layout plan of the medical building according to the new objective function.

[0069] First, based on the penalty mechanism, screen the floor layout plans of the medical departments that meet the building function constraints;

[0070] Then, based on the genetic algorithm, perform calculations on the screened floor layout plans of the medical departments to determine the floor layout plan of the medical departments of the target medical building when the post-earthquake medical function failure probability is the lowest.

[0071] Exemplarily, use the genetic algorithm framework to perform calculations to quickly obtain the floor layout plan of the medical departments of the medical building when the post-earthquake medical function failure probability is the lowest. Specifically, set the input information of the genetic algorithm to the types of medical departments in the target medical building, the number of floors, the number of each type of medical department to be arranged, and the upper limit of the number of medical departments that each floor can accommodate; the output information of the genetic algorithm is the minimum failure probability of the post-earthquake medical function of the target medical building, the corresponding floor layout plan of the medical departments, and the algorithm running time. Also, set the running parameters of the algorithm, such as: the maximum number of generations of evolution, the evolution threshold, and the number of generations of evolution stagnation as the algorithm optimization parameters.

[0072] This genetic algorithm can be a genetic algorithm with enhanced elite retention or other effective genetic algorithms.

[0073] The multi-level optimization layout method of medical buildings for post-earthquake medical functions provided by the embodiments of the present invention obtains the attribute information and function division of medical buildings, establishes a multi-level coupled post-earthquake medical function evaluation model of medical buildings, which can calculate the post-earthquake medical function failure probability of medical buildings when a given department floor layout plan is provided, and transforms the function evaluation model into an objective function; further, transforms the floor layout problem of medical departments into a matrix element enumeration problem, transforms the building function constraints into a penalty mechanism, and combines with the objective function to quickly determine the floor layout plan of medical departments when the post-earthquake medical function failure probability of medical buildings is the lowest, reduces the post-earthquake medical function failure probability of medical buildings, and can provide an important reference for medical building design and improving the seismic resilience of medical buildings.

[0074] On the basis of the foregoing embodiments, this embodiment provides an example of optimizing and displaying the layout of medical departments in a medical building by using the multi-level optimization layout method of medical buildings for post-earthquake medical functions, which can be specifically implemented according to the following steps:

[0075] Step 1, obtain the attribute information of the medical building. Among them, the type of medical department M = 11, the number of floors N = 9, and the number of each type of medical department to be arranged Dept i As shown in formula (4), the upper limit Num of the number of medical departments that each floor can accommodate j As shown in formula (5), and the building function constraints of medical departments in the medical building, Figure 2 shows a schematic diagram of the building function constraints of medical departments in the outpatient building.

[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 function type of the medical building, and establish a multi-level coupled post-earthquake medical function evaluation model of the medical building.

[0079] The target medical building is, for example, an outpatient building, and its functions that meet the post-earthquake emergency relief functions can be divided into: basic function, examination function, diagnosis and treatment function, admission function, and supply function. Figure 3 shows a schematic diagram of the post-earthquake emergency relief function division of the outpatient building.

[0080] The current department floor layout plan of the outpatient building is as Figure 4As shown in the figure, taking the current department floor layout plan of the outpatient building as an example, a corresponding multi-level coupled post-earthquake medical function evaluation model for medical buildings was established. Figure 5 The schematic diagram of the multi-level coupled post-earthquake medical function evaluation model for medical buildings is shown (some branches are not fully displayed). Among them, E1: damage to the stairs, E2: damage to the elevator, E3: damage to the corridor, E4: failure of the air-conditioning unit, E5: damage to the distribution box, E6: damage to the external power supply, E7: damage to the emergency generator, E8: damage to the external water source, E9: damage to the water tank, E10: damage to the water pump. Through elastoplastic time history analysis, the structural response of the outpatient building under rare earthquake conditions was obtained. Figure 6 The schematic diagram of the floor structural response of the outpatient building is shown. The failure probability of its post-earthquake medical function was further calculated.

[0081] Step 3, convert the function evaluation model into an objective function.

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

[0083] P1 = P(E1)×P(E2) (6)

[0084] P2 = 1-(1-P(E3))×(1-P(E4)) (7)

[0085] In the formula, P(E1) represents the occurrence probability of event E1.

[0086] Combined with the component-department level fault tree model, the post-earthquake medical function failure probability of a corresponding single medical department on different floors can be obtained through Equations (6) and (7). Define a two-dimensional matrix Matrix department (EDPs). The dimension and the number of elements of the matrix are the same as those of the Layout matrix. Each element k ij in the matrix represents the post-earthquake medical function failure probability of a single department of the i-th type of department on the j-th floor, as shown in Equation (8).

[0087]

[0088] Furthermore, the basic function branches of the outpatient building are connected by various components through "AND" gates or "OR" gates, and its function failure probability P basicIt can be calculated by formulas (6) and (7); in the medical function branches including the 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, and its functional failure probability P medical can be calculated by formula (9).

[0089]

[0090] In the formula, Department i represents the post-earthquake medical function failure probability of the i th type of medical department, and departments of the same type are connected by "AND" gates. Therefore, given the matrix Matrix department (EDPs) and Layout, Department i can be calculated by formula (10).

[0091]

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

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

[0094]

[0095] Step 5, transform the building function constraints of medical departments into a penalty mechanism. Taking the operating room as an example: considering factors such as long connection routes and inconvenient material transportation, the operating room should not be arranged on the ground floor and the top floor, and the corresponding pseudocode can be seen in the Figure 7 pseudocode schematic diagram of the building function constraints of the operating room in the outpatient building shown.

[0096] Step 6, apply the genetic algorithm with enhanced elite retention to calculate the optimal plan 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 as the minimum failure probability of the post-earthquake medical function in the outpatient building, the corresponding department layout plan Layout, and the algorithm running time. Calculate the above algorithm architecture to obtain the medical department floor layout plan when the failure probability of the post-earthquake medical function in the outpatient building is the lowest, as shown in Equation (12). At this time, the failure probability of the outpatient building is 29.73%. The comparison before and after the optimization of the outpatient building departments is as follows Figure 8 Schematic diagram of the comparison of the function failure probabilities before and after the optimization of the outpatient building department layout shown in the figure. Among them, CT: Computed Tomography (CT room), Lab: Laboratory, EEG: Electroencephalogram Room, IMCD: Internal Medicine Clinic, SCD: Surgery 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 embodiments of the present invention. First, obtain the attribute information of the medical building, including: the types of medical departments, 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 each floor can accommodate, and the architectural function constraints of the medical departments in the medical building. Secondly, determine the function type of the medical building, establish a multi-level coupled post-earthquake medical function evaluation model of the medical building to calculate the post-earthquake medical function failure probability of the medical building when a given department floor layout plan is provided, and further transform the function evaluation model into an objective function. Then, transform the problem of the floor layout of medical departments into a problem of listing matrix elements. Finally, transform the architectural function constraints into a penalty mechanism, combine with the objective function, and apply the genetic algorithm to quickly determine the medical department floor layout plan when the post-earthquake medical function failure probability of the medical building is the lowest. The embodiments of the present invention can efficiently give the optimal floor layout plan of medical departments in medical buildings, reduce the post-earthquake medical function failure probability of medical buildings, and provide important references for medical building design and improving the seismic resilience of medical buildings.

[0099] The embodiments of the present invention provide a multi-level optimization layout system of medical buildings for post-earthquake medical functions. Figure 9 The structural schematic diagram of a multi-level optimization layout system of medical buildings for post-earthquake medical functions provided by the embodiments of the present invention is shown. The system includes:

[0100] An acquisition module 91, configured to acquire the 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 to be arranged, the upper limit of the number of medical departments that each floor can accommodate, and the architectural function constraints of the medical departments in the medical building;

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

[0102] A matrix transformation module 93 is configured to transform the floor layout plan of the medical departments in the target medical building into a plan in the form of matrix element enumeration.

[0103] A target function determination module 94 is configured to transform the building function constraints into a penalty mechanism, and combine the penalty mechanism with the target function corresponding to the post-earthquake medical function evaluation model of the medical building to obtain a new target function, which is used to calculate the post-earthquake medical function failure probability of the medical building.

[0104] A plan determination module 95 is configured to determine the floor layout plan of the medical departments in the target medical building with the lowest post-earthquake medical function failure probability based on the plan in the form of matrix element enumeration and the new target function.

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

[0106] The implementation principle and the technical effects generated by the post-earthquake medical function evaluation system for the medical building provided in this embodiment are the same as those in the previous embodiment. For a brief description, for the parts not mentioned in the system embodiment, reference can be made to the corresponding content in the previous method embodiment.

[0107] An embodiment of the present invention provides an electronic device, which includes a processor and a storage device. A computer program that can run on the processor is stored in the storage device. 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 the processor, the computer-executable instructions cause 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 of implementing the methods in the above embodiments can be completed by instructing a control device through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The storage medium can be a memory, a magnetic disk, an optical disk, etc.

[0110] In this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

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

[0112] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can 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 optimized layout method for medical buildings oriented to post-earthquake medical functions, characterized in that Including: Obtaining the 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 to be arranged, the upper limit of the number of medical departments that each floor can accommodate, 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 post-earthquake medical function evaluation model for the medical building; the multi-level coupled post-earthquake medical function evaluation model for the medical building is a fault tree model considering the multi-level coupling of components - departments - floors established for the target medical building; Converting the floor layout plan of the medical departments in 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, where the objective function is used to calculate the post-earthquake medical function failure probability of the medical building; 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 in the target medical building with the lowest post-earthquake medical function failure probability; The method further includes converting the post-earthquake medical function evaluation model of the medical building into the objective function; The post-earthquake medical function evaluation model of the medical building is a fault tree model connecting lower-level events and upper-level events through logical gates of "AND" or "OR"; the objective function for calculating the post-earthquake medical function failure probability P(Layout, EDPs) of the medical building is shown as follows: P(Layout, EDPs) = 1 – (1 - P basic ) × (1 - P medical ) where P basic is the failure probability of the basic function branch in the post-earthquake function evaluation model, and P medical is the failure probability of the medical function branch composed of different medical departments in the post-earthquake function evaluation model.

2. The method according to claim 1, wherein The establishment of the multi-level coupled post-earthquake medical function evaluation model for the medical building 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 relief 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 function 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 and establishing a multi-level coupled fault tree model of components - departments - floors as the post-earthquake medical function evaluation model.

3. The method according to claim 1, wherein The conversion of the floor layout plan of the medical departments in the target medical building into a plan in the form of matrix element enumeration includes: Define a two-dimensional matrix Layout, where 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 in the target medical building, and each element a in the matrix ij represents the number of the i-th category of departments on the j-th floor, and a ij are all natural numbers. Each Layout corresponds to a set of floor layout plans for medical departments as follows: On 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 each floor can accommodate remains unchanged, adjusting the number arrangement of departments on different floors to change the post-earthquake medical function failure probability of the medical building, and converting the floor layout optimization problem of departments into a matrix element enumeration problem as follows: Minimize P(Layout,EDPs)=1–(1-P basic )×(1-P medical ) where Dept i is the quantity to be arranged for the i-th type of department; Num j is the upper limit of the quantity of medical departments that can be accommodated on the j-th floor; M is the total number of types of medical departments; N is the total number of floors of the medical building.

4. The method according to claim 1, wherein The conversion of the architectural function constraints into a penalty mechanism includes: Converting the architectural function constraints into judgment statements for judging whether the current floor layout plan of the medical departments meets the architectural function constraints; For the solutions that meet the building function constraints, the corresponding objective function values remain unchanged; for the solutions that do not meet the building function constraints, penalties are imposed to increase their corresponding objective function values.

5. The method according to claim 1, characterized in that The method for determining the floor layout plan of medical departments with the lowest post-earthquake medical function failure probability for the target medical building includes: Based on the penalty mechanism, screening the floor layout plans of medical departments that meet the building function constraints; Carrying out calculations on the screened floor layout plans of medical departments based on the genetic algorithm to determine the floor layout plan of medical departments when the post-earthquake medical function failure probability of the target medical building is the lowest; the input information of the genetic algorithm is set as the types of medical departments in the target medical building, the number of floors, the number of each type of medical department to be arranged, and the upper limit of the number of medical departments that each floor can accommodate; the output information of the genetic algorithm is the minimum post-earthquake medical function failure probability of the target medical building, the corresponding floor layout plan of medical departments, and the algorithm running time.

6. The method according to claim 1, wherein The building function constraints mean 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 departments need to meet specific floor layout conditions.

7. The method according to claim 6, characterized in that The method for obtaining the building function constraints of the target medical building includes: Determining the functional type and department composition of the target medical building; Determining the floor layout constraints of medical departments through literature review and / or on-site investigation.

8. A multi-level optimized layout system for medical buildings oriented to post-earthquake medical functions, characterized in that, It includes: An acquisition module for acquiring the 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 to be arranged, the upper limit of the number of medical departments that each floor can accommodate, and the building function constraints of the medical departments in the medical building; An evaluation model establishment module for determining the medical function type of the target medical building and establishing a multi-level coupled post-earthquake medical function evaluation model for the medical building; the multi-level coupled post-earthquake medical function evaluation model for the medical building is a fault tree model considering component-department-floor multi-level coupling established for the target medical building; A matrix transformation module for transforming 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 for transforming the building function constraints into a penalty mechanism, and obtaining a new objective function by combining the penalty mechanism with the objective function corresponding to the post-earthquake medical function evaluation model of the medical building, where the objective function is used to calculate the post-earthquake medical function failure probability of the medical building; A plan determination module for determining the floor layout plan of medical departments with the lowest post-earthquake medical function failure probability for the target medical building based on the plan in the form of matrix element enumeration and the new objective function; The objective function determination module is also used to transform the post-earthquake medical function evaluation model of the medical building 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 and upper-level events through logic gates of "AND" or "OR"; the objective function for calculating the post-earthquake medical function failure probability P(Layout, EDPs) is shown as follows: P(Layout, EDPs) = 1 – (1 - P basic ) × (1 - P medical ) where P basic is the failure probability of the basic function branch in the post-earthquake function evaluation model, and P medical is the failure probability of the medical function branch composed of different medical departments in the post-earthquake function evaluation model.

9. An electronic device, characterized in that, including: a processor and a storage device; a computer program is stored on the storage device, and the computer program, when run by the processor, executes the method according to any one of claims 1 to 7.

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