CN-120851446-B - Emergency rescue resource scheduling dynamic planning method for post-disaster wounded evacuation

CN120851446BCN 120851446 BCN120851446 BCN 120851446BCN-120851446-B

Abstract

The invention discloses an emergency rescue resource scheduling dynamic planning method for evacuation of wounded persons after disaster, which particularly relates to the technical field of emergency rescue, and is based on a preset disaster area rescue environment, wherein the method divides the wounded evacuation rescue process into multi-stage calculation of deprivation cost of each stage by setting tent and service constraint, keeping wounded circulation and conservation, ambulance scheduling constraint, treatment of non-rescue wounded persons and hospitals and setting decision variable types, and introducing deprivation cost, including deprivation cost of heavy wounded persons, total deprivation cost of each wounded person and total deprivation cost of all wounded persons; the total deprivation cost of all wounded persons is combined with the moving cost of the medical rescue tent, the transportation cost of the ambulance, the penalty cost of the wounded persons not being cured, i.e. the total cost of the whole emergency rescue is minimized.

Inventors

CUI NA
LIU QING
YANG KEXIN
JIAO LULU
WANG LINSHEN
WANG DI
HE JINGANG

Assignees

济南大学

Dates

Publication Date: 20260508
Application Date: 20250703

Claims (6)

1. The dynamic planning method for emergency rescue resource scheduling for the evacuation of wounded persons after disaster is characterized in that the method is based on a preset disaster area rescue environment, and obtains an objective function by setting and serving constraint on a medical rescue tent, keeping the circulation and conservation of wounded persons, ambulance scheduling constraint, treatment of non-rescue wounded persons and hospitals and setting decision variable types, introducing deprivation cost to divide the wounded person evacuation rescue process into deprivation cost of each stage, wherein the deprivation cost comprises deprivation cost of a heavy wounded person, total deprivation cost of each wounded person and total deprivation cost of all wounded persons; Wherein the total cost of the whole emergency rescue is minimized The method comprises the following steps: ; a medical rescue tent alternative point set, ; Medical rescue tent slave The unit movement cost of the point movement to the j point; medical rescue tent slave The point moves to The distance of the points; If (1) Medical rescue tent slave at moment The point moves to Point, then = 1, otherwise = 0; the transportation and use cost of ambulances in unit time is reduced; : From time to time hospital Medical rescue tent Ambulance number; Disaster point The number of severely wounded persons who have not been rescued; Disaster point A penalty factor for the wounded not being treated; : Medical rescue tent at moment The number of non-cured wounded persons; Medical rescue tent Punishment coefficients for point wounded persons not cured; The moving cost of the medical rescue tent; The transportation cost of ambulances; punishment cost of wounded persons not treated; a set of the time of the day, ; Depriving coefficients of a cost function; Disaster point Medical rescue tent Is the walking time of the wounded person; Tent for indicating wounded person from medical rescue To hospital Is a transport time of (a); Wounded person is in hospital Average latency of (2); A set of disaster points is used for the collection, ; A medical rescue tent alternative point set, ; The set of existing hospitals is presented, ; : From the disaster point at moment Medical rescue tent Is a serious wounded number; : Medical rescue tent for moment Point of arrival at hospital Is a serious wounded person.
2. The dynamic planning method for emergency rescue resource scheduling for post-disaster wounded evacuation of claim 1, wherein the preset rescue environment comprises the following steps: (1) The arrival of wounded persons in the hospital follows poisson distribution, and is assumed to be an M/M/1 single-channel service system, namely, all medical staff are treated as a whole, and the existence of a plurality of service platforms in an actual environment is ignored; (2) In the evacuation process, the wounded person is assumed not to die due to the evacuation process, and only the deprivation cost of the wounded person is considered in the modeling process; (3) Assuming that all rescue vehicles are homogenous and that the vehicle speed remains constant; (4) The number of severely casualty persons in disaster areas is assumed to be known; (5) Assume that the ambulance returns to the hospital to which it belongs after completing the rescue mission.
3. The dynamic planning method for emergency rescue resource scheduling for post-disaster wounded evacuation according to claim 1, wherein the probability density function of the deprivation cost of the wounded person is defined as follows: 。
4. The dynamic planning method for emergency rescue resource scheduling for post-disaster wounded evacuation according to claim 1, wherein the total deprivation cost of each wounded is as follows: ; ABC is the area formula of the linear descending part, and has the mathematical meaning of To the point of + During the period, the wounded receives basic emergency treatment in the ambulance transportation process, so that the disease is stable, and the deprivation cost value of the wounded linearly drops to 0.
5. The dynamic planning method for emergency rescue resource scheduling for post-disaster wounded evacuation according to claim 1, wherein the total deprivation cost of all wounded persons is as follows: 。
6. The dynamic scheduling method for emergency rescue resource for evacuation of wounded after disaster according to claim 1, wherein the tent setting and service constraint comprises the following steps: Indicating that at most one medical rescue tent can be at any medical tent candidate point j at any time t; the position and the state of the medical rescue tent at the initial moment; The movement constraint of the medical rescue tent is realized; indicating that at least one medical rescue tent candidate point j serves any disaster point i; indicating that only if the alternative point j has a medical rescue tent, the disaster point i can be serviced; representing a capacity constraint of the medical rescue tent; Conservation of wounded number for disaster point i; the initial position state of the ambulance in each hospital is given; the state and the position of the ambulance at any moment t are given; Indicating that only if the medical rescue tent exists at the point j, the ambulance can be allocated to the point service; capacity limitation constraints for existing hospitals; Indicating that the total capacity of the ambulance dispatching the j points of the medical rescue tent can meet the vehicle capacity required by the wounded at the j points; Indicating that the number of wounded persons who are not cured at j points of the medical rescue tent at the initial moment is 0; representing conservation of the number of the wounded persons which are not cured at the j point of the medical rescue tent; the arrival rate of any hospital h wounded person at any time t is represented; Representing the maximum processing capacity of hospital h; Waiting time for wounded persons in any hospital h at any time t; average waiting time for h wounded in hospital; And Decision variable type definitions are given.

Description

Emergency rescue resource scheduling dynamic planning method for post-disaster wounded evacuation Technical Field The invention relates to the technical field of emergency rescue, in particular to an emergency rescue resource scheduling dynamic planning method for evacuation of wounded after disaster. Background After natural disasters occur, disaster-stricken areas often face severe casualties and economic tragic situations due to strong destructive power. In disaster areas, rescue supplies are always insufficient to meet all demands. The core goal of emergency medical assistance is to respond quickly, and provide immediate medical assistance to the wounded, so as to minimize casualties and property loss. However, it becomes very difficult to directly enter the disaster area for evacuation rescue due to the damage of the infrastructure of the disaster area and the interruption of the road. Therefore, the medical rescue tent is built in the disaster area edge zone, the wounded persons can be effectively gathered, the danger of the wounded persons caused by secondary disasters is avoided, and the wounded persons can be dynamically evacuated and rescued for multiple periods of time through scientific site selection and mobile medical rescue tent, so that the rescue tent becomes a practical and effective rescue strategy. The whole evacuation path of wounded is 'disaster point-medical rescue tent-hospital'. However, due to shortage of medical resources, the wounded may not immediately receive medical treatment, which may cause the injury to further worsen. Disclosure of Invention Therefore, the invention provides a dynamic planning method for emergency rescue resource scheduling for evacuation of wounded persons after disaster, which aims to solve the problems in the background technology. The invention provides a dynamic planning method for emergency rescue resource scheduling for evacuation of wounded persons after disaster, which is based on a preset disaster area rescue environment and comprises the steps of setting and serving constraints on a medical rescue tent, keeping wounded person circulation and conservation, ambulance scheduling constraints, processing non-rescue wounded persons and hospitals and setting decision variable types, introducing deprivation cost to divide the wounded person evacuation rescue process into multiple stages of deprivation cost calculation, wherein the deprivation cost comprises deprivation cost of a heavy wounded person, total deprivation cost of each wounded person and total deprivation cost of all wounded persons, and the total deprivation cost of all wounded persons is combined with the moving cost of the medical rescue tent, transportation cost of an ambulance and unreserved punishment cost of the wounded person to obtain an objective function, namely the total cost of the whole emergency rescue is minimized. Preferably, the preset rescue environment includes: (1) The arrival of wounded persons in the hospital follows poisson distribution, and is assumed to be an M/M/1 single-channel service system, namely, all medical staff are treated as a whole, and the existence of a plurality of service platforms in an actual environment is ignored; (2) In the evacuation process, the wounded person is assumed not to die due to the evacuation process, and only the deprivation cost of the wounded person is considered in the modeling process; (3) Assuming that all rescue vehicles are homogenous and that the vehicle speed remains constant; (4) The number of severely casualty persons in disaster areas is assumed to be known; (5) Assume that the ambulance returns to the hospital to which it belongs after completing the rescue mission. Preferably, the probability density function of the robbery cost of a heavily wounded person is defined as follows: ; a set of the time of the day, ; Depriving coefficients of a cost function; Disaster point Medical rescue tentIs the walking time of the wounded person; Tent for indicating wounded person from medical rescue To hospitalIs a transport time of (a); Wounded person is in hospital Average latency of (2); A set of disaster points is used for the collection, ; A medical rescue tent alternative point set,; The set of existing hospitals is presented,; Fatness ABC is the area formula of the linear falling partThe mathematical meaning is thatTo the point of+During the period, the wounded receives basic emergency treatment in the ambulance transportation process, so that the disease is stable, and the deprivation cost value of the wounded linearly drops to 0. Preferably, the total deprivation cost per wounded is as follows: 。 preferably, the total deprivation cost for all wounded: ; : From the disaster point at moment Medical rescue tentIs a serious wounded number; : Medical rescue tent for moment Point of arrival at hospitalIs a serious wounded person. Preferably, the total cost of the entire emergency rescue is minimizedThe method comprises the follow