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p垃圾回收物流仿真系統(tǒng)設(shè)計(jì)-閱讀頁

2025-07-14 19:11本頁面
  

【正文】 nteger各小區(qū)的居民數(shù)量capacitycart(2)integer兩種垃圾車每次可收集的垃圾數(shù)量,即載重量ndemand(2)integer每天對兩種垃圾車的需求次數(shù)labor(2)integer兩種垃圾車的隨車工作人員數(shù)SalaryReal工作人員每天工資price(2)Real兩種垃圾車的購買價(jià)格costrate(2)Real兩種垃圾車的運(yùn)行費(fèi)率unloadspeed(2)Real兩種垃圾車的空載速度loadspeed(2)Real兩種垃圾車的實(shí)載速度loadnum(2)integer兩車輛到達(dá)垃圾收集點(diǎn)可收集的垃圾數(shù)量nfree(2)integer兩車輛剩余載重能力Nparts7)integer每一垃圾收集點(diǎn)在特定仿真時點(diǎn)剩余垃圾量loadtime(2)Real兩車輛收集垃圾所需的時間unloadtime(2)Real兩車輛卸載垃圾所需的時間runtime(2,3)Real存儲車輛的時間參數(shù),runtime(k,1)存儲仿真鐘的當(dāng)前數(shù)值,runtime(k,2)存儲車輛k在當(dāng)天的運(yùn)行時間,runtime(k,3)存儲車輛k在仿真過程中總的運(yùn)行時間TimeweighReal時間懲罰因子timecost(2)Real時間懲罰成本sumcostReal目標(biāo)函數(shù)objfun中用于統(tǒng)計(jì)系統(tǒng)運(yùn)行的總費(fèi)用 定義一個實(shí)數(shù)型邏輯函數(shù)objfun(),用于計(jì)算和統(tǒng)計(jì)系統(tǒng)運(yùn)行一年365天所花費(fèi)的總費(fèi)用。(3) 元素詳細(xì)設(shè)計(jì)在該子模塊中定義隨著仿真鐘的推進(jìn),裝載垃圾的邏輯條件。為了實(shí)現(xiàn)系統(tǒng)的仿真運(yùn)行,需要對系統(tǒng)中的元素進(jìn)行詳細(xì)設(shè)計(jì)。unloadtime = 0 !卸載時間FOR num = 1 TO 7 moddemanda (num) = 0 moddemandb (num) = 0 !決定叫車次數(shù)的變量NEXTFOR num = 1 TO 4 roadchoicea (num) = 0 roadchoiceb (num) = 0 !最短路徑控制變量NEXTFOR num = 1 TO 3 runtimea (num) = 0 runtimeb (num) = 0 !車輛運(yùn)行時間控制變量NEXTintervaltime = 1440 !每天的分鐘數(shù)timeweigh = 5 !時間懲罰因子laborneeda = 1laborneedb = 1 !兩輛車隨車工作人員數(shù)!對變量賦初始值b.各個小區(qū)垃圾的詳細(xì)設(shè)計(jì)垃圾元素詳細(xì)設(shè)計(jì)表NameFirst arrivalInter arrivalLot sizeToDumpa11440ERLANG (meandump (1) / 3,3,1)PUSH to buffera1Dumpa21440ERLANG (meandump (2) / 3,3,2)PUSH to buffera2Dumpa31440ERLANG (meandump (3) / 3,3,3)PUSH to buffera3Dumpa41440ERLANG (meandump (4) / 3,3,4)PUSH to buffera4Dumpa51440ERLANG (meandump (5) / 3,3,5)PUSH to buffera5Dumpa61440ERLANG (meandump (6) / 3,3,6)PUSH to buffera6Dumpa71440ERLANG (meandump (7) / 3,3,7)PUSH to buffera7Dumpb11440ERLANG (meandump (1) / 3,3,8)PUSH to bufferb1Dumpb21440ERLANG (meandump (2) / 3,3,9)PUSH to bufferb2Dumpb31440ERLANG (meandump (3) / 3,3,10)PUSH to bufferb3Dumpb41440ERLANG (meandump (4) / 3,3,11)PUSH to bufferb4Dumpb51440ERLANG (meandump (5) / 3,3,12)PUSH to bufferb5Dumpb61440ERLANG (meandump (6) / 3,3,13)PUSH to bufferb6Dumpb71440ERLANG (meandump (7) / 3,3,14)PUSH to bufferb7垃圾名稱*一天的分鐘數(shù)Meandump為通過各小區(qū)人數(shù)計(jì)算出來的變量數(shù)組決定垃圾的存放*決定每天各個小區(qū)的垃圾依次產(chǎn)生,以便于生產(chǎn)叫車次數(shù)。Buffera2~buffera7的“actions on input”中的程序如下:IF MOD (moddemanda (i1) + NPARTS (buffera(i)),cartcapacity1) = 1 CALL dumpcart1,geta(i),road7_t,0 VSEARCH road0_1, corppark, road1_2, road1_0, road2_3, road3_4, road4_5, road5_6, road6_5, road6_7, road7_t, roadt_7, road1_0, road3_6, road6_3, road7_0, road0_7, road2_1, geta1, geta2, geta3, geta4, geta5, geta6, geta7, getb1, getb2, getb3, getb4, getb5,getb6,getb7ENDIFmoddemanda (i) = MOD (moddemanda (I1) + NPARTS (buffera(i)),cartcapacity1)i表示本垃圾箱的序號,為2,3,4,5,6,7;第一行:將其上一個垃圾箱的非整車?yán)鴶?shù)量同本垃圾箱中的垃圾數(shù)相加,然后與車輛一的載重量取余,當(dāng)結(jié)果為1時,叫車。E.兩點(diǎn)間運(yùn)輸路徑上的程序設(shè)計(jì)下面以road2_3為例,加以說明其邏輯流程。IF VEHICLE (road2_3,1) = dumpcart1 IF NPARTS (buffera3) 0 PUSH to geta3(1) ELSE PUSH to road3_4 ENDIFELSEIF VEHICLE (road2_3,1) = dumpcart2 IF NPARTS (bufferb3) 0 PUSH to getb3 ELSE PUSH to road3_4 ENDIFELSE WaitENDIF第一行到第六行:決定車輛dumpcart1到達(dá)路徑road2_3末端時,它的運(yùn)行路徑。第七行到第十二行:決定車輛dumpcart2到達(dá)路徑road2_3末端時,它的運(yùn)行路徑。 如果是其他情況,等待(第十三行到第十四行)。其中裝載數(shù)量(loadnum)和裝載時間(loadtime)在general detail頁的actions on front中設(shè)定;裝載程序和條件在loading detail頁中進(jìn)行設(shè)定。第六行:計(jì)算本次收集所需的時間loadtimea(1),它是本次垃圾收集量、隨車工作人員數(shù)以及收集時間系數(shù)的函數(shù)。在選中l(wèi)oading enabled(能夠裝載)前的復(fù)選框后,將會出現(xiàn)該界面上的其他內(nèi)容。我們選擇條件模式if,在條件condition:框中輸入條件表達(dá)式NPARTS(buffera2)0,即當(dāng)垃圾箱buffera2中的垃圾數(shù)量大于零時,能夠裝載;裝載數(shù)量等于Quantity to框中的變量loadnum的值;裝載的時間需要Time to Load框中的變量loadtimea(1);裝載的源在Input Loading Rule規(guī)則中進(jìn)行設(shè)定,為“PULL from buffera2”,從垃圾箱buffera2中收集。General detail頁的actions on front 中設(shè)定卸載所需的時間,程序如下:IF VEHICLE (road7_t,1) = dumpcart1 unloadtime = 3 + 6 * NPARTS (dumpcart1) / 1000 / laborneeda dayunloadtimea = dayunloadtimea + unloadtimeELSE unloadtime = 2 + 6 * NPARTS (dumpcart2) / 1000 / laborneedb dayunloadtimeb = dayunloadtimeb + unloadtimeENDIF程序解釋:第一行至第三行,根據(jù)函數(shù)VEHICLE()的結(jié)果,如果到達(dá)車輛是dumpcart1,就通過車輛dumpcart1中所裝載的垃圾數(shù)量NPARTS (dumpcart1)、車輛dumpcart1的隨車工作人員數(shù)laborneeda來確定卸載時間unloadtime (第二行),然后統(tǒng)計(jì)車輛dumpcart1的總的卸載時間dayunloadtimeb (第三行)。 下圖是路徑road7_t設(shè)置中的另一項(xiàng)內(nèi)容,就是車輛卸載的相關(guān)內(nèi)容。卸載模式(Transfer Mode)也有三種模式if、call、always,我們選擇模式always,只要車輛到達(dá)路徑road7_t的末端,就進(jìn)行卸載活動。卸載時間Time to設(shè)定為變量unloadtime,決定本次卸載所需要的時間。卸載到什么地方,將由“output unloading rule”中的程序決定,程序?yàn)椋簆ush to ship,將所有垃圾送出系統(tǒng)。這些程序?qū)懺诼窂絩oad7_0的“Actions on Front”中,程序及其說明如下:IF VEHICLE (road7_0,1) = dumpcart1 IF NDemands (dumpcart1) = 0 runtimea (1) = TIME runtimea (2) = runtimea (2) + 1 runtimea (3) = runtimea (1) 1000 * (runtimea (2) 1) timecosta = timecosta + timeweigh * (runtimea (3) 240) daydistance = DISTANCE (dumpcart1) / 10 lastdaydistance lastdaydistance = DISTANCE (dumpcart1) / 10 dayunloadtimea = 0 dayloadtimeb = 0 ENDIFELSEIF VEHICLE (road7_0,1) = dumpcart2 IF NDemands (dumpcart2) = 0 runtimeb (1) = TIME runtimeb (2) = runtimeb (2) + 1 runtimeb (3) = runtimeb (1) 1000 * (runtimeb (2) 1) timecostb = timecostb + timeweigh * (runtimeb (3) 240) daydistancea = DISTANCE (dumpcart2) / 10 lastdaydistancea lastdaydistancea = DISTANCE (dumpcart2) / 10 dayunloadtimeb = 0 dayloadtimeb = 0 ENDIFENDIFFOR num = 1 TO 4 IF VEHICLE (road7_0,1) = dumpcart1 roadchoicea (num) = 0 ELSEIF VEHICLE (road7_0,1) = dumpcart2 roadchoiceb (num) = 0 ENDIFNEXT程序解釋:第一行至第十一行,如果即將停泊的車輛是dumpcart1,同時系統(tǒng)此時對車輛dumpcart1的需求是零(第三行);先統(tǒng)計(jì)車輛dumpcart1在當(dāng)天收集工作的完成時間,并判斷是否超過了12點(diǎn),然后計(jì)算當(dāng)天的時間懲罰成本timecost(第三至第六行);統(tǒng)計(jì)車輛的運(yùn)行距離(第七至第八行);對兩個變量置零(第九至第十行)。第二十四行至第三十行,對路徑選擇變量數(shù)組置零。 項(xiàng)目方案車輛名稱載重量(噸)隨車人員(人)時間懲罰因子方案一Dumpcart(1)312Dumpcart(2)12方案二Dumpcart(1)532Dumpcart(2)32其它的項(xiàng)目在兩個方案中的值完全相同,參見前面的表格。在這兩種方案下。由于方案一的車輛噸位和隨車人員都比方案二要少,所以同是收集等量垃圾,它的收集時間和卸載時間都比方案二長,它的收集次數(shù)要比方案二多,即運(yùn)行距離比方案二
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