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  • 大小: 5KB
    文件類型: .rar
    金幣: 2
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    發(fā)布日期: 2021-05-27
  • 語(yǔ)言: Matlab
  • 標(biāo)簽: matlab??PSO??

資源簡(jiǎn)介

代碼利用粒子群算法對(duì)帶時(shí)間窗的車輛路徑規(guī)劃問(wèn)題進(jìn)行了求解,代碼進(jìn)行了詳細(xì)的注釋,易于理解和進(jìn)行修改,內(nèi)置了一組數(shù)據(jù),為可執(zhí)行的代碼。

資源截圖

代碼片段和文件信息

%%----評(píng)估粒子---%%
%是否為可行解--判斷依據(jù):各車輛是否超重超重
%根據(jù)目標(biāo)函數(shù)計(jì)算目標(biāo)值,找出粒子群的gbest和各粒子的pbest
%ijkctj1j2
function?[gbestXv?gbestXr?fav]=eval(XvXryPEPLCTSTgvnnmspeedDSw)
fav=zeros(n1);???%%%
bm=linspace(1nn);?
ET=CT(:1);
LT=CT(:2);
g;
t1=0;
for?i=1:n
????Xvi=Xv(i:);??%獲取任務(wù)對(duì)應(yīng)車輛編號(hào)的粒子行
????Xri=Xr(i:);???%獲取車輛對(duì)應(yīng)任務(wù)順序行
????st=zeros(vn+1m);
????st(1:)=linspace(1mm);
????t=0;
????bmzys=zeros(1);
????sg=zeros(1vn);?%存儲(chǔ)沒(méi)輛車的貨物
????ST1=zeros(1vn);%存儲(chǔ)每輛車的時(shí)間懲罰
????juli=zeros(1vn);
????%對(duì)每個(gè)粒子的Xv和Xr進(jìn)行解碼
????for?j=1:vn
????????colv=find(Xvi==j);
????????for?k=1:length(colv)
????????????st(j+1colv(k))=Xri(colv(k));?%獲取每一輛車的Xr值
????????end
????????st0=st(1:)‘;
????????stj=st(j+1:)‘;
????????sst=[st0?stj];
????????pxst=sortrows(sst2);??%%進(jìn)行排序獲取每輛車接送任務(wù)的順序
????????for?c=1:m
????????????if?pxst(c2)~=0
????????????????t=t+1;
????????????????cxh(t)=pxst(c1);??%獲取每輛車的進(jìn)行各項(xiàng)任務(wù)的編號(hào)
????????????end
????????end
????????for?j1=1:t
????????????sg(j)=sg(j)+g(cxh(j1));???%%每輛車所載貨物
????????????if?j1~=t
????????????????juli(j)=juli(j)+DS(1cxh(1))+DS(cxh(j1)cxh(j1+1));??%每輛車途經(jīng)距離
????????????else
????????????????juli(j)=juli(j)+DS(cxh(t)1);??%每輛車途經(jīng)距離
????????????end
????????????if?t~=1
????????????????if?j1~=t
????????????????cxh(j1+1);
????????????????cxh(j1);
??????????????????ST0=DS(1cxh(1))/speed+ST(cxh(1))+PE*max(ET(cxh(1))-ST(1)0)+PL*max(LT(cxh(1))-ST(1)0);??%每輛車途經(jīng)第一個(gè)節(jié)點(diǎn)時(shí)的時(shí)間(不包括時(shí)間懲罰)
??????????????????ST1(j)=ST0+ST1(j)+DS(cxh(j1)cxh(j1+1))/speed+PE*max(ET(cxh(j1+1))-ST1(j)0)+PL*max(LT(cxh(j1+1))-ST1(j)0)+ST(cxh(j1));
????????????????else
????????????????????ST1(j)=ST1(j)+DS(cxh(t)1)/speed;
????????????????end
????????????else
????????????????ST0=DS(1cxh(1))/speed+ST(cxh(1))+PE*max(ET(cxh(1))-ST(1)0)+PL*max(LT(cxh(1))-ST(1)0);
????????????????ST1(j)=ST0;
????????????end
????????end
????????if?sum(sg)>w??%%約束條件判斷
????????????t1=t1+1;
???????????bmzys(t1)=j;
????????end
????end
????%%%目標(biāo)函數(shù)計(jì)算
????fav(i)=y*sum(juli)+sum(ST1);
end
bmzyscl=find(bmzys~=0);??%%讀取不滿足約束的粒子
for?j3=1:length(bmzyscl)
????bm(bmzys(bmzyscl(j3)))=0;
????fav(bmzys(bmzyscl(j3)))=inf;
end
bm1=bm(bm~=0);
for?j4=1:length(bmzyscl)
????lh=length(bm1);
????lh1=round(rand*(lh-2)+1);
????Xv(j4:)=Xv(lh1:);
end
gbestj=find(fav==min(fav));
gbestXr=Xr(gbestj:);
gbestXv=Xv(gbestj:);



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?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????217??2018-12-21?20:56??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\CT.mat

?????文件????????605??2018-12-21?21:09??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\DS.mat

?????文件???????2630??2018-12-22?17:21??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\eval.m

?????文件????????193??2018-12-21?20:52??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\g.mat

?????文件???????4326??2018-12-22?17:20??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\main.m

?????文件????????198??2018-12-21?20:54??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼\ST.mat

?????目錄??????????0??2019-01-01?13:43??待時(shí)間窗車輛路徑規(guī)劃模型求解matlab代碼

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?????????????????8169????????????????????7


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