Particle Swarm Algorithm for Solving Emergency Material Dispatch Considering Urgency

doi:10.16182/j.issn1004731x.joss.21-0362

Abstract

Abstract:

In the early stage of major public health events, medical supplies are rapidly consumed and severely insufficient. In order to distribute medical supplies in a reasonable and efficient manner, research on the distribution of emergency medical materials is carried out. The entropy method is introduced to determine the urgency of demand points, thus could give priority to the demand points with high urgency and make the distribution routing as short as possible on that basis to realize the construction of a split delivery and multi-objective emergency medical materials scheduling model based on different urgency of demand points. Meanwhile the particle swarm optimization algorithm is improved by using dynamic intertia weight and adding particle disturbance term to solve the model. The results show that this method can efficiently solve the problem of emergency material allocation and vehicle routing plan generation under the condition of resource shortage.

Key words: entropy method, demand urgency, emergency medical supplies scheduling, multi-objective particle swarm algorithm, path planning

CLC Number:

TP391.9

Li Zhang, Huizhen Zhang, Dong Liu, Yuxin Lu. Particle Swarm Algorithm for Solving Emergency Material Dispatch Considering Urgency[J]. Journal of System Simulation, 2022, 34(09): 1988-1998.

Figures/Tables 10

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编号	定点医院	物资需求量/t	需求点规模(开放床位)	收治人数(使用床位)	辖区人口(万人)	紧迫度系数λ_i
1	金银潭医院	12.30	720	685	829.27	1.895 5
2	武汉市肺科医院	5.60	122	119	68.60	1.021 9
3	武汉市汉口医院	6.70	389	422	72.30	1.268 1
4	市红十字会医院	4.60	304	304	59.60	1.131 3
5	市七医院	3.60	193	196	87.80	1.072 2
6	市四医院西院区	5.90	319	343	68.60	1.189 4
7	市九医院	7.80	405	502	44.00	1.325 3
8	市武昌医院	8.40	504	520	126.37	1.410 9
9	市五医院	5.60	430	424	50.70	1.103 2
10	市中心医院后湖院区	10.70	525	525	59.60	1.457 6
11	市三医院光谷院区	7.00	300	316	87.80	1.207 1
12	武钢二医院	5.60	102	103	44.00	1.000 0
13	同济中法新城	5.90	280	271	51.20	1.140 6
14	协和西院	4.80	247	247	59.60	1.093 5
15	省人民医院(东院)	5.50	270	270	63.40	1.130 5

参数水平	N_P	N_R	G
1	50	10	200
2	100	15	300
3	150	20	400
4	200	25	500
5	250	30	600

序号	参数				AVG
序号	N_P	N_R	G	ω	目标函数值1	目标函数值2
1	1	1	1	1	22.688	787.678
2	1	2	2	2	23.171	741.935
3	1	3	3	3	22.392	692.876
4	1	4	4	4	23.884	695.435
5	1	5	5	5	22.258	684.353
6	2	1	2	3	22.675	672.876
7	2	2	3	4	22.543	686.353
8	2	3	4	5	21.948	688.369
9	2	4	5	1	22.894	716.603
10	2	5	1	2	22.983	690.744
11	3	1	3	5	22.547	701.256
12	3	2	4	1	22.594	692.283
13	3	3	5	2	22.515	691.571
14	3	4	1	3	22.595	698.564
15	3	5	2	4	23.048	679.312
16	4	1	4	2	22.165	685.966
17	4	2	5	3	22.696	687.539
18	4	3	1	4	22.213	684.446
19	4	4	2	5	22.542	672.621
20	4	5	3	1	23.869	717.954
21	5	1	5	4	22.793	697.235
22	5	2	1	5	23.458	691.677
23	5	3	2	1	23.782	709.851
24	5	4	3	2	22.136	685.878
25	5	5	4	3	22.542	703.282

方案	Z₁	Z₂	LE_1i/%	LE_2i/%
1	21.664	725.7	86.48	29.76
2	21.581	775.7	100.00	0
3	21.590	756.2	98.53	11.61
4	21.699	705.2	80.78	41.96
5	21.938	664.3	41.86	66.31
6	21.704	706.8	79.97	41.01
7	22.195	607.7	0	100.00
8	22.154	624.4	6.68	90.06
9	21.833	685.8	58.96	53.51

定点医院	总配送量	定点医院	总配送量
金银潭医院	12.3	市五医院	3.4
武汉市肺科医院	3.4	中心医院后湖院区	10.7
武汉市汉口医院	6.7	市三医院光谷院区	4.2
市红十字会医院	2.8	武钢二医院	3.4
市七医院	2.2	同济中法新城	4.0
市四医院西院区	4.8	协和西院	2.9
市九医院	7.8	省人民医院(东院)	3.3
市武昌医院	8.1	总计	80