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一種考慮社會車輛通行效益的公交優先信號控制分級算法的制作方法

文檔序號(hao):39596030發布(bu)日期:2024-10-11 13:02閱讀(du):27來源:國(guo)知局
一種考慮社會車輛通行效益的公交優先信號控制分級算法的制作方法

本發明屬于振動(dong)傳感器(qi)(qi)領域,特別是柔性振動(dong)傳感器(qi)(qi)領域,尤其涉(she)及(ji)一種(zhong)考慮社(she)會車輛通行效益的公(gong)交(jiao)優(you)先信(xin)號控制分(fen)級(ji)算(suan)法。


背景技術:

1、德國(guo)的信號控(kong)制(zhi)規范(rilsa)中,專門論述了(le)在(zai)信號控(kong)制(zhi)中對于“公(gong)共(gong)交(jiao)(jiao)通(tong)的特殊(shu)考慮”。其中明確指出“在(zai)交(jiao)(jiao)通(tong)信號控(kong)制(zhi)系統中須(xu)考慮公(gong)共(gong)交(jiao)(jiao)通(tong)的特殊(shu)需求,因為它(ta)對城市(shi)的交(jiao)(jiao)通(tong)運行具有基(ji)礎性(xing)的重(zhong)要(yao)作用(yong)”。其中定(ding)義的公(gong)交(jiao)(jiao)優先策略(lve)包括:

2、基(ji)于時間段(duan)的定時信號方案選擇,可能與附加的結構設(she)施相結合(如:獨立軌(gui)道等);

3、適(shi)應公共交(jiao)通特殊需(xu)求的(de)信號(hao)方案選(xuan)擇(ze);

4、根據個(ge)別公共交通運行案例的特征,選擇(ze)微觀的控(kong)制策略來生成或(huo)選擇(ze)控(kong)制方案。

5、規(gui)范中還提(ti)到“根(gen)據當(dang)地的(de)交通特征,還可(ke)以采用(yong)車道信(xin)號進行控制”。

6、國外可(ke)實(shi)(shi)(shi)施公(gong)交優(you)(you)先的(de)(de)經典感應控制信號系統主要有(you)澳洲(zhou)的(de)(de)scats和英國的(de)(de)scoot系統、美國的(de)(de)nema系統以及日本的(de)(de)四(si)步控制方法。scats系統可(ke)以實(shi)(shi)(shi)現方案(an)級(ji)的(de)(de)公(gong)交優(you)(you)先控制,根據實(shi)(shi)(shi)測的(de)(de)飽和度值(zhi)對(dui)預先設定(ding)好的(de)(de)方案(an)進行(xing)選擇;scoot系統可(ke)以實(shi)(shi)(shi)現秒(miao)級(ji)的(de)(de)自(zi)適應公(gong)交優(you)(you)先控制,它的(de)(de)優(you)(you)化目標函數是(shi)區域綜(zong)合延誤最小/區域綜(zong)合服務水平最高,根據從控制中(zhong)心(xin)接受的(de)(de)指令以該目標為依據進行(xing)信號調(diao)整。

7、目前我國(guo)許多(duo)信(xin)(xin)號(hao)機廠商(shang)已經(jing)開始進(jin)行公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)信(xin)(xin)號(hao)控(kong)(kong)(kong)(kong)制(zhi)算法研究,并已研發(fa)(fa)出具(ju)備一定公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)功(gong)能的(de)(de)信(xin)(xin)號(hao)機。海信(xin)(xin)網絡科(ke)技(ji)公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)基(ji)(ji)于(yu)(yu)美國(guo)雙環結構系(xi)(xi)(xi)統(tong),開發(fa)(fa)了(le)可根(gen)據公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)車輛滿載率和對社(she)會(hui)車輛造成的(de)(de)延(yan)誤增量判斷(duan)是否進(jin)行優(you)(you)先(xian)(xian)的(de)(de)信(xin)(xin)號(hao)控(kong)(kong)(kong)(kong)制(zhi)系(xi)(xi)(xi)統(tong),該信(xin)(xin)號(hao)系(xi)(xi)(xi)統(tong)在(zai)(zai)(zai)長(chang)沙落(luo)地(di);南京(jing)萊斯信(xin)(xin)息技(ji)術(shu)公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)開發(fa)(fa)了(le)基(ji)(ji)于(yu)(yu)區域-干(gan)(gan)線(xian)-路口的(de)(de)三層交(jiao)(jiao)(jiao)通(tong)(tong)控(kong)(kong)(kong)(kong)制(zhi)模型(xing)(xing),通(tong)(tong)過延(yan)長(chang)綠燈、縮(suo)短紅(hong)燈的(de)(de)方(fang)法進(jin)行實(shi)時的(de)(de)信(xin)(xin)號(hao)調(diao)整(zheng),實(shi)現干(gan)(gan)道綠波協(xie)調(diao)控(kong)(kong)(kong)(kong)制(zhi)下的(de)(de)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian),在(zai)(zai)(zai)南京(jing)得到廣泛使(shi)用(yong);生茂光電(dian)科(ke)技(ji)公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)開發(fa)(fa)了(le)基(ji)(ji)于(yu)(yu)綠燈延(yan)長(chang)和紅(hong)燈早(zao)斷(duan)方(fang)法實(shi)施公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)的(de)(de)2000-ii型(xing)(xing)集中協(xie)調(diao)式信(xin)(xin)號(hao)控(kong)(kong)(kong)(kong)制(zhi)機;西門(men)子中國(guo)有限公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)根(gen)據北京(jing)亦莊(zhuang)線(xian)路的(de)(de)交(jiao)(jiao)(jiao)通(tong)(tong)特性,設計了(le)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)控(kong)(kong)(kong)(kong)制(zhi)系(xi)(xi)(xi)統(tong),嘗試進(jin)行干(gan)(gan)線(xian)協(xie)調(diao)下的(de)(de)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian);航(hang)天大為公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)開發(fa)(fa)的(de)(de)具(ju)備公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)系(xi)(xi)(xi)統(tong)的(de)(de)信(xin)(xin)號(hao)機同樣是基(ji)(ji)于(yu)(yu)規則(ze)的(de)(de)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)方(fang)法,其在(zai)(zai)(zai)蘇州落(luo)地(di)的(de)(de)有軌電(dian)車信(xin)(xin)號(hao)優(you)(you)先(xian)(xian)系(xi)(xi)(xi)統(tong)通(tong)(tong)過綠燈延(yan)長(chang)和紅(hong)燈提前提供優(you)(you)先(xian)(xian);寶康電(dian)子公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)基(ji)(ji)于(yu)(yu)scats系(xi)(xi)(xi)統(tong)開發(fa)(fa)了(le)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)自(zi)適應(ying)信(xin)(xin)號(hao)系(xi)(xi)(xi)統(tong),曾在(zai)(zai)(zai)上海松江路使(shi)用(yong)。杰(jie)瑞曾在(zai)(zai)(zai)2012年(nian)連云(yun)港brt項(xiang)目中落(luo)地(di)基(ji)(ji)于(yu)(yu)rfid的(de)(de)簡(jian)單邏輯響應(ying)的(de)(de)公(gong)(gong)(gong)(gong)(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)控(kong)(kong)(kong)(kong)制(zhi)模型(xing)(xing)。

8、一(yi)些廠商的(de)具備公(gong)交(jiao)優(you)先(xian)功能(neng)的(de)信號機已(yi)經開(kai)始逐漸市場化,但(dan)從實際應(ying)用效果上看并(bing)不(bu)(bu)理想,許多公(gong)交(jiao)優(you)先(xian)線路僅僅實現偽優(you)先(xian)或者說“暴(bao)力優(you)先(xian)”,甚至由于造成過大(da)的(de)負面交(jiao)通影響而停止使用,其主要存(cun)在的(de)問題為公(gong)交(jiao)優(you)先(xian)控(kong)制算法存(cun)在不(bu)(bu)足(zu)或缺陷。未(wei)能(neng)很好協調(diao)不(bu)(bu)同(tong)路況(kuang)下公(gong)交(jiao)車和(he)社會車輛信號(利益)分配(pei)。

9、具體來說(shuo),當前已落地的(de)信(xin)號優(you)先手段基(ji)本還是停(ting)留(liu)在(zai)基(ji)于(yu)綠燈(deng)延長和(he)紅燈(deng)早(zao)斷的(de)單(dan)點感應式控制方法,通過“暴力優(you)先”的(de)方式實現相(xiang)(xiang)位(wei)搶占,提高公(gong)交相(xiang)(xiang)位(wei)綠信(xin)比,這(zhe)種(zhong)規(gui)則式優(you)先策略易對社(she)(she)會(hui)車(che)輛的(de)運行產生較大干(gan)擾(rao),未能解決對非(fei)優(you)先相(xiang)(xiang)位(wei)進行補(bu)償和(he)各方利益平(ping)衡的(de)問(wen)題。這(zhe)樣會(hui)導致公(gong)交車(che)占用了(le)過多的(de)路口資源,影響了(le)社(she)(she)會(hui)車(che)輛的(de)正常通行權益。


技術實現思路

1、本發明的(de)(de)(de)目的(de)(de)(de)在于(yu)針對現(xian)有的(de)(de)(de)公(gong)(gong)交(jiao)(jiao)(jiao)信號優(you)(you)先(xian)(xian)策略導(dao)致非優(you)(you)先(xian)(xian)相位社(she)會(hui)車(che)輛延誤增加的(de)(de)(de)問題,提(ti)出(chu)一(yi)種(zhong)兼顧(gu)公(gong)(gong)交(jiao)(jiao)(jiao)車(che)輛和(he)社(she)會(hui)車(che)輛通(tong)行效益(yi)的(de)(de)(de)公(gong)(gong)交(jiao)(jiao)(jiao)信號優(you)(you)先(xian)(xian)方法,通(tong)過將公(gong)(gong)交(jiao)(jiao)(jiao)車(che)輛的(de)(de)(de)優(you)(you)先(xian)(xian)請求重要度進行分級,考慮不同等級公(gong)(gong)交(jiao)(jiao)(jiao)車(che)輛信號優(you)(you)先(xian)(xian)效益(yi)以及社(she)會(hui)車(che)輛通(tong)行權(quan)益(yi),提(ti)出(chu)公(gong)(gong)交(jiao)(jiao)(jiao)信號優(you)(you)先(xian)(xian)控制平衡算法模型,最終實現(xian)公(gong)(gong)交(jiao)(jiao)(jiao)車(che)輛與(yu)社(she)會(hui)車(che)輛通(tong)行效益(yi)的(de)(de)(de)協調(diao)。

2、實現本發明目的(de)的(de)技(ji)術解決方(fang)案為:一種(zhong)考慮(lv)社會(hui)車輛通行效益的(de)公(gong)交優(you)先(xian)信號控制分級算法,所述算法包括以下步驟:

3、步驟1,根據(ju)公(gong)交(jiao)(jiao)線路(lu)(lu)所布設的線路(lu)(lu)等級(ji)以及公(gong)交(jiao)(jiao)線路(lu)(lu)行駛的公(gong)交(jiao)(jiao)車輛(liang)類型,進行交(jiao)(jiao)叉口公(gong)交(jiao)(jiao)線路(lu)(lu)靜(jing)態優(you)先級(ji)分(fen)級(ji),作(zuo)為公(gong)交(jiao)(jiao)車輛(liang)的靜(jing)態基礎屬(shu)性之一(yi);

4、步驟2,綜合考慮(lv)公交(jiao)(jiao)車輛的靜態(tai)(tai)基礎屬性(xing)(xing)、公交(jiao)(jiao)車輛動態(tai)(tai)運營數(shu)據、交(jiao)(jiao)叉口信號燈(deng)狀態(tai)(tai)屬性(xing)(xing),構建(jian)公交(jiao)(jiao)優先(xian)級指標體系與公交(jiao)(jiao)信號優先(xian)請求(qiu)量化計算模型;

5、步驟(zou)3,考慮交叉口社(she)會(hui)車輛(liang)運行(xing)效率,構建面(mian)向公交和社(she)會(hui)車輛(liang)通行(xing)效率提升的目標(biao)函數,進而構建基(ji)于(yu)粒子(zi)群算法的公交優先控制模型;

6、步(bu)驟(zou)4,接(jie)收實時公(gong)交(jiao)信號(hao)優(you)先(xian)(xian)動(dong)態請求(qiu)數據,判斷(duan)當前交(jiao)叉口(kou)等待(dai)優(you)先(xian)(xian)公(gong)交(jiao)數量是否(fou)大于預設閾(yu)值(zhi),若否(fou),則跳(tiao)轉(zhuan)至步(bu)驟(zou)5,否(fou)則利(li)用(yong)所(suo)述公(gong)交(jiao)信號(hao)優(you)先(xian)(xian)請求(qiu)量化(hua)計算模(mo)型(xing)求(qiu)取公(gong)交(jiao)優(you)先(xian)(xian)級并(bing)進行優(you)先(xian)(xian)級排序,之后跳(tiao)轉(zhuan)至步(bu)驟(zou)5;

7、步驟5,利用所述基于粒子群算法的公(gong)交優先(xian)控制模型進(jin)行公(gong)交優先(xian)協調控制。

8、進(jin)一(yi)步地,步驟1中:

9、公(gong)(gong)交(jiao)(jiao)車(che)輛(liang)類(lei)型bty為公(gong)(gong)交(jiao)(jiao)車(che)輛(liang)靜態(tai)指標(biao),同(tong)一輛(liang)公(gong)(gong)交(jiao)(jiao)車(che)的靜態(tai)指標(biao)值固定(ding)不變;根(gen)據(ju)公(gong)(gong)交(jiao)(jiao)車(che)輛(liang)類(lei)型標(biao)定(ding)公(gong)(gong)交(jiao)(jiao)車(che)型等(deng)級,級別越(yue)高則(ze)優(you)先級越(yue)高,其中額定(ding)載客量(liang)更高的公(gong)(gong)交(jiao)(jiao)優(you)先級更高;

10、公(gong)交(jiao)線路(lu)(lu)等級(ji)bro為公(gong)交(jiao)車輛(liang)靜態(tai)(tai)指標,同一輛(liang)公(gong)交(jiao)車的靜態(tai)(tai)指標值固定不變;所述公(gong)交(jiao)線路(lu)(lu)等級(ji)指某線路(lu)(lu)公(gong)交(jiao)運(yun)行時通過的道路(lu)(lu)等級(ji),依次劃(hua)分為主路(lu)(lu)、次路(lu)(lu)、支路(lu)(lu)三(san)個等級(ji)。

11、進(jin)(jin)一步地,步驟(zou)2中(zhong)公(gong)交優先(xian)級(ji)指標(biao)(biao)體系包含兩個層(ceng)(ceng)(ceng)級(ji);第(di)(di)(di)一層(ceng)(ceng)(ceng)級(ji)為關鍵指標(biao)(biao)-----車頭時距(ju)偏移度,需滿足該指標(biao)(biao)約束才能進(jin)(jin)入第(di)(di)(di)二層(ceng)(ceng)(ceng)級(ji)的計算,否(fou)則(ze)直接將(jiang)該公(gong)交認定為“不允(yun)許優先(xian)”;第(di)(di)(di)二層(ceng)(ceng)(ceng)級(ji)為其(qi)他綜合指標(biao)(biao),包括靜(jing)態指標(biao)(biao)和(he)動態指標(biao)(biao),其(qi)中(zhong)靜(jing)態指標(biao)(biao)包括公(gong)交車輛類型(xing)和(he)公(gong)交線路等級(ji),動態指標(biao)(biao)為公(gong)交載客率。

12、進一步地,所述車(che)頭時距偏(pian)移度的(de)計(ji)算公式為:

13、δht=hta-hte

14、式中,δht為(wei)(wei)車(che)頭(tou)時(shi)距(ju)(ju)偏移度,hta為(wei)(wei)公交在干(gan)線上運行時(shi)與同(tong)線路(lu)前車(che)的實(shi)際車(che)頭(tou)時(shi)距(ju)(ju),hte為(wei)(wei)理(li)想車(che)頭(tou)時(shi)距(ju)(ju),指同(tong)一(yi)線路(lu)公交的發車(che)間隔;

15、所述需滿(man)足該指(zhi)標約束才能進入第(di)二層(ceng)級(ji)的(de)計算(suan),具體(ti)控制邊界mh記為(wei):

16、

17、當mh=1時(shi),公交(jiao)的優先請求通過一(yi)級(ji)指(zhi)標,允許進入二級(ji)指(zhi)標的篩選(xuan)流程;當mh=0時(shi),公交(jiao)的優先請求直接被拒絕。

18、進一步(bu)地,所述第二層(ceng)級(ji)的其他綜合指標對應的公交(jiao)優先(xian)級(ji)即最終公交(jiao)優先(xian)級(ji)bpr計算公式(shi)為:

19、bpr=a1*rbl+a2*bsp

20、式中,rbl為公交(jiao)載(zai)客率,bsp為靜態指標(biao)對(dui)應(ying)的公交(jiao)優先(xian)級(ji)即靜態公交(jiao)優先(xian)級(ji),a1、a2分別為rbl、bsp對(dui)應(ying)的權重系(xi)數。

21、進一步(bu)地(di),步(bu)驟(zou)2中所述公交信號優(you)先請求量化計(ji)算模型具(ju)體包括以下內容(rong):

22、(1)計算發(fa)出公交優先請求的公交的車頭時距偏移度δht;

23、(2)判斷(duan)車(che)頭(tou)時距偏移度是否滿(man)足δht>0,若是,則(ze)表(biao)明(ming)該公(gong)交晚點,允(yun)許執行公(gong)交優先控(kong)制(zhi)(zhi),進(jin)入(3);若否,則(ze)表(biao)明(ming)該公(gong)交準點或早(zao)點,不允(yun)許執行公(gong)交優先控(kong)制(zhi)(zhi),流程結束;

24、(3)獲(huo)取(qu)該公交的公交載客(ke)率rbl,若無法獲(huo)取(qu)則統一置(zhi)0;

25、(4)根據公交的(de)車輛(liang)類型和(he)公交線路等級判(pan)斷靜(jing)態公交優先級bsp;

26、(5)根據公交載(zai)客率rbl和靜態公交優(you)(you)先級bsp計算(suan)最終公交優(you)(you)先級bpr;

27、(6)將(5)中的最終公交優先(xian)級bpr與(yu)已(yi)經處于優先(xian)等待狀態的公交優先(xian)級進(jin)行匯總排序(xu)(xu),得到更新后的待優先(xian)公交優先(xian)級排序(xu)(xu)。

28、進一(yi)步地,步驟3中所述基于(yu)粒子群算法(fa)的(de)公(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)(xian)控制(zhi)(zhi)(zhi)(zhi)模型(xing),對(dui)每兩個(ge)相鄰交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)生成(cheng)(cheng)(cheng)一(yi)個(ge)協調(diao)優(you)(you)先(xian)(xian)(xian)方(fang)案(an),并在(zai)干線中依次遞推;當(dang)檢測到某(mou)公(gong)(gong)交(jiao)(jiao)(jiao)即(ji)將到達(da)交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)時(shi),該(gai)公(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)(xian)控制(zhi)(zhi)(zhi)(zhi)模型(xing)會同時(shi)生成(cheng)(cheng)(cheng)針對(dui)該(gai)公(gong)(gong)交(jiao)(jiao)(jiao)在(zai)交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j和交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j+1的(de)優(you)(you)先(xian)(xian)(xian)協調(diao)控制(zhi)(zhi)(zhi)(zhi)方(fang)案(an);而當(dang)該(gai)公(gong)(gong)交(jiao)(jiao)(jiao)即(ji)將到達(da)交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j+1時(shi),該(gai)公(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)(xian)控制(zhi)(zhi)(zhi)(zhi)模型(xing)會基于(yu)已生成(cheng)(cheng)(cheng)的(de)交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j+1公(gong)(gong)交(jiao)(jiao)(jiao)優(you)(you)先(xian)(xian)(xian)控制(zhi)(zhi)(zhi)(zhi)方(fang)案(an),進一(yi)步生成(cheng)(cheng)(cheng)交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j+1和交(jiao)(jiao)(jiao)叉(cha)口(kou)(kou)j+2的(de)優(you)(you)先(xian)(xian)(xian)協調(diao)控制(zhi)(zhi)(zhi)(zhi)方(fang)案(an);以此類推,即(ji)可完成(cheng)(cheng)(cheng)公(gong)(gong)交(jiao)(jiao)(jiao)在(zai)干線中的(de)優(you)(you)先(xian)(xian)(xian)協調(diao)控制(zhi)(zhi)(zhi)(zhi)。

29、進一步地(di),步驟(zou)3中所述面向(xiang)公(gong)交和社(she)會車輛通行效率(lv)提(ti)升的目(mu)標函數,即(ji)基于粒子(zi)群算法的公(gong)交優先控制模型(xing)的目(mu)標函數為:

30、min:θptde+(1-θp)toc

31、式中,θp為(wei)權重系數(shu),tde為(wei)公交在相(xiang)(xiang)鄰兩(liang)(liang)個交叉(cha)口(kou)的信號控(kong)制延誤(wu)時(shi)間,toc為(wei)相(xiang)(xiang)鄰兩(liang)(liang)交叉(cha)口(kou)非協調(diao)相(xiang)(xiang)位(wei)綠(lv)燈(deng)擠(ji)占度;

32、其中:

33、tde=|ta1-te1|+|ta2-te2|

34、式中,ta1和(he)ta2分別(bie)(bie)為(wei)公(gong)交(jiao)(jiao)在交(jiao)(jiao)叉口(kou)j和(he)j+1的(de)(de)(de)實(shi)際通過(guo)(guo)時(shi)(shi)刻(ke),te1和(he)te2分別(bie)(bie)為(wei)公(gong)交(jiao)(jiao)在交(jiao)(jiao)叉口(kou)j和(he)j+1的(de)(de)(de)理想通過(guo)(guo)時(shi)(shi)刻(ke),即公(gong)交(jiao)(jiao)無需停車直接通過(guo)(guo)交(jiao)(jiao)叉口(kou)對應的(de)(de)(de)時(shi)(shi)刻(ke);

35、toc=|tc1-te1|+|tc2-te2|

36、式中,tc1和(he)(he)tc2分別為為交(jiao)叉(cha)口(kou)j和(he)(he)j+1在公(gong)交(jiao)優先(xian)實施(shi)(shi)前的(de)非(fei)協(xie)調相位綠燈時間,te1和(he)(he)te2分別為為交(jiao)叉(cha)口(kou)j和(he)(he)j+1在公(gong)交(jiao)優先(xian)實施(shi)(shi)后的(de)非(fei)協(xie)調相位綠燈時間。

37、進一步地(di),步驟3中所述(shu)基于粒(li)(li)子(zi)群(qun)(qun)算法(fa)(fa)(fa)的公(gong)交(jiao)(jiao)優(you)先控(kong)制模(mo)型的邊界約束條件包(bao)(bao)括兩(liang)類:(i)前置(zhi)(zhi)約束條件:某(mou)公(gong)交(jiao)(jiao)發(fa)出優(you)先請(qing)求時(shi)(shi),交(jiao)(jiao)叉口需滿(man)足此類前置(zhi)(zhi)約束,該請(qing)求才能被(bei)響應并(bing)允許進入粒(li)(li)子(zi)群(qun)(qun)算法(fa)(fa)(fa)尋優(you);(ii)粒(li)(li)子(zi)位置(zhi)(zhi)約束條件:粒(li)(li)子(zi)群(qun)(qun)算法(fa)(fa)(fa)尋優(you)時(shi)(shi),需滿(man)足公(gong)交(jiao)(jiao)優(you)先協(xie)調控(kong)制上層系統(tong)框架的約束,包(bao)(bao)括公(gong)交(jiao)(jiao)相位最(zui)大綠(lv)燈(deng)提前時(shi)(shi)間(jian)、最(zui)大綠(lv)燈(deng)延長(chang)時(shi)(shi)間(jian)和綠(lv)波(bo)帶約束;

38、所述前置約束條件,包(bao)括:

39、(1)優(you)先請求(qiu)響應數約束:每個信號(hao)周期(qi)最多允許響應兩個公(gong)交優(you)先請求(qiu);

40、(2)周(zhou)(zhou)期(qi)(qi)時長約束:每兩(liang)個周(zhou)(zhou)期(qi)(qi)長度不變,即第i周(zhou)(zhou)期(qi)(qi)的起始時刻和第i+1周(zhou)(zhou)期(qi)(qi)的終(zhong)止時刻固定不變;

41、(3)優(you)(you)(you)先(xian)(xian)(xian)狀(zhuang)態(tai)(tai)約束(shu):當(dang)前(qian)交(jiao)(jiao)(jiao)(jiao)叉(cha)口(kou)未處于執(zhi)行(xing)公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)優(you)(you)(you)先(xian)(xian)(xian)狀(zhuang)態(tai)(tai)中,或當(dang)前(qian)交(jiao)(jiao)(jiao)(jiao)叉(cha)口(kou)正在執(zhi)行(xing)公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)優(you)(you)(you)先(xian)(xian)(xian),但(dan)該(gai)公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)請求與正在執(zhi)行(xing)的(de)公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)優(you)(you)(you)先(xian)(xian)(xian)請求不沖突時(shi),才(cai)允許激活公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)優(you)(you)(you)先(xian)(xian)(xian)響應(ying);所(suo)述(shu)執(zhi)行(xing)公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)優(you)(you)(you)先(xian)(xian)(xian)狀(zhuang)態(tai)(tai)為正在響應(ying)某公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)的(de)優(you)(you)(you)先(xian)(xian)(xian)請求且尚未結束(shu),公(gong)(gong)交(jiao)(jiao)(jiao)(jiao)尚未通過交(jiao)(jiao)(jiao)(jiao)叉(cha)口(kou);

42、所述粒子位置約束條件,包括(kuo):

43、(1)綠波帶約束

44、設綠波(bo)帶起(qi)止時刻分別(bie)為ws和we,則有:

45、

46、式中,gs0和(he)ge0分別為(wei)協(xie)調相(xiang)位綠燈(deng)的原(yuan)起、止時(shi)(shi)刻(ke),δtc為(wei)綠燈(deng)起始時(shi)(shi)刻(ke)變化量(liang),δte為(wei)綠燈(deng)結(jie)束時(shi)(shi)刻(ke)變化量(liang);

47、(2)最(zui)大綠燈提前和延長時間約束

48、

49、式中(zhong)(zhong),cmax為公(gong)交(jiao)優先協(xie)調控制系統框架中(zhong)(zhong)最(zui)(zui)大綠燈提前時間,emax為公(gong)交(jiao)優先協(xie)調控制系統框架中(zhong)(zhong)最(zui)(zui)大綠燈延長時間;

50、(3)最大綠燈時(shi)間約束

51、δtc+·gc0+δte≤gmax

52、式中(zhong)(zhong),gmax為公交(jiao)優(you)先(xian)協調控制系統框(kuang)架中(zhong)(zhong)最大綠燈時間(jian),gc0為綠燈持續(xu)時間(jian)的(de)初始值。

53、進一(yi)步(bu)地(di),步(bu)驟5所(suo)述利(li)用所(suo)述基于粒子群算(suan)法的公交優先控制模型進行公交優先協(xie)調控制,具體包括:

54、步(bu)驟5-1,接收到公(gong)交(jiao)優先請求后,判(pan)斷當前交(jiao)叉口(kou)此時(shi)是(shi)否(fou)滿足(zu)所(suo)述優先請求響應數約(yue)束,若是(shi),則進入步(bu)驟5-2,否(fou)則拒絕公(gong)交(jiao)優先請求;

55、步(bu)驟5-2,判(pan)斷該交(jiao)(jiao)叉口此(ci)時(shi)是(shi)否(fou)滿足所述周(zhou)期時(shi)長約(yue)束(shu),若是(shi),則進(jin)入步(bu)驟5-3,否(fou)則拒(ju)絕公(gong)交(jiao)(jiao)優先請求;

56、步驟(zou)5-3,判(pan)斷該交叉(cha)口此時是(shi)否滿(man)足所述優先狀態約(yue)束,若是(shi)則進入步驟(zou)5-4,否則拒(ju)絕(jue)公交優先請求(qiu);

57、步驟(zou)5-4,初始化粒子群體,包(bao)括隨機位置和速度;

58、步(bu)驟5-5,根據適應度函數即所述目標函數,計(ji)算相應的信號(hao)控制(zhi)延誤(wu)時間(jian)tde和相鄰兩交叉口非協調(diao)相位(wei)綠(lv)燈擠占度toc,評價每個粒子的適應度;

59、步驟5-6,針對每個(ge)粒子,比(bi)較其當前適(shi)應(ying)值(zhi)與其個(ge)體歷史最佳(jia)位置對應(ying)的適(shi)應(ying)值(zhi),將(jiang)適(shi)應(ying)值(zhi)更高的位置更新為(wei)個(ge)體最佳(jia)位置pbesti;

60、步驟5-7,針對(dui)(dui)每個(ge)粒子,比較其(qi)當前適(shi)應(ying)值與全局最(zui)佳(jia)位(wei)置(zhi)對(dui)(dui)應(ying)的(de)適(shi)應(ying)值,將適(shi)應(ying)值更(geng)高(gao)的(de)位(wei)置(zhi)更(geng)新(xin)為全局最(zui)佳(jia)位(wei)置(zhi)gbest;

61、步驟5-8,在速度(du)(du)和位置邊界約束條(tiao)件(jian)范圍內(nei),對每個粒子的速度(du)(du)與位置進化;

62、步驟(zou)5-9,如(ru)未滿足(zu)結束條(tiao)件,則返回步驟(zou)5-5,直至達到最大迭代次數或最佳(jia)適應度值增量小于(yu)預設(she)閾(yu)值;

63、步驟5-10,輸出公交相(xiang)位起止時(shi)間(jian)最優變(bian)化量(liang)(liang),根據實時(shi)社會車流量(liang)(liang)分(fen)配執行公交優先控制方案后(hou)的(de)非協(xie)調相(xiang)位綠燈時(shi)間(jian),各相(xiang)位綠燈時(shi)間(jian)應與車流量(liang)(liang)成(cheng)正比;

64、步(bu)驟5-11,輸(shu)出執(zhi)行公(gong)交(jiao)優先控制后的最終信號(hao)配時方(fang)案。

65、本發明與現有技(ji)術相比,其顯著優點為:

66、(1)針對多公交(jiao)優先(xian)(xian)請求競爭(zheng),建立二級指標體(ti)系,對公交(jiao)優先(xian)(xian)級進行確定(ding),以確定(ding)公交(jiao)優先(xian)(xian)控制融合策略(lve),為公交(jiao)信號優先(xian)(xian)控制鑒(jian)定(ding)基礎。

67、(2)針對(dui)公(gong)(gong)交(jiao)和社(she)會車(che)(che)輛(liang)兩個優(you)化(hua)(hua)(hua)對(dui)象建(jian)立多目(mu)標(biao)(biao)優(you)化(hua)(hua)(hua)函(han)數(shu),具體(ti)以公(gong)(gong)交(jiao)信號(hao)控制延誤時間最短為優(you)化(hua)(hua)(hua)目(mu)標(biao)(biao),以非協(xie)(xie)調相位綠燈擠占度最小為優(you)化(hua)(hua)(hua)目(mu)標(biao)(biao),對(dui)二(er)者優(you)化(hua)(hua)(hua)目(mu)標(biao)(biao)進行(xing)線(xian)性加權得到模(mo)型優(you)化(hua)(hua)(hua)目(mu)標(biao)(biao)函(han)數(shu),在不(bu)影響社(she)會車(che)(che)輛(liang)通行(xing)效(xiao)益的(de)(de)前提下,能有效(xiao)提升公(gong)(gong)交(jiao)乃至(zhi)交(jiao)叉口整體(ti)車(che)(che)輛(liang)在干線(xian)中的(de)(de)通行(xing)效(xiao)率,最終實現公(gong)(gong)交(jiao)車(che)(che)輛(liang)與社(she)會車(che)(che)輛(liang)通行(xing)效(xiao)益的(de)(de)有效(xiao)協(xie)(xie)調。

68、(3)利用粒(li)子(zi)群(qun)算法實現靈活的“可變時(shi)長(chang)的綠燈移動策(ce)略”公交(jiao)(jiao)優先(xian)控制策(ce)略,相鄰路口的公交(jiao)(jiao)相位綠燈起(qi)止時(shi)刻(ke)變化量可在約束空間(jian)內靈活調(diao)整(zheng),公交(jiao)(jiao)相位綠燈時(shi)間(jian)可以進行(xing)靈活的邊(bian)界調(diao)整(zheng)。

69、(4)公(gong)(gong)交發出優(you)先(xian)(xian)(xian)(xian)(xian)請求時,交叉(cha)口(kou)需滿足優(you)先(xian)(xian)(xian)(xian)(xian)請求響(xiang)應(ying)(ying)數(shu)約(yue)(yue)束、周(zhou)期時長約(yue)(yue)束、優(you)先(xian)(xian)(xian)(xian)(xian)狀態約(yue)(yue)束等前置約(yue)(yue)束條件,該(gai)請求才能被響(xiang)應(ying)(ying)并允許進入粒(li)子群算(suan)法(fa)尋(xun)優(you);之后(hou)在(zai)粒(li)子群算(suan)法(fa)尋(xun)優(you)時,需滿足公(gong)(gong)交優(you)先(xian)(xian)(xian)(xian)(xian)協調(diao)控制上層系統框架的(de)(de)(de)約(yue)(yue)束,包括公(gong)(gong)交相位最大(da)綠燈提(ti)前時間、最大(da)綠燈延長時間和(he)綠波帶約(yue)(yue)束,這樣(yang)的(de)(de)(de)方式可以保證公(gong)(gong)交優(you)先(xian)(xian)(xian)(xian)(xian)請求的(de)(de)(de)合理(li)性(xing)和(he)有效性(xing),避(bi)免不必要的(de)(de)(de)沖(chong)突,提(ti)高(gao)優(you)先(xian)(xian)(xian)(xian)(xian)請求被正常響(xiang)應(ying)(ying)的(de)(de)(de)概(gai)率,同時使得最終的(de)(de)(de)尋(xun)優(you)結(jie)果更佳,進而提(ti)高(gao)優(you)先(xian)(xian)(xian)(xian)(xian)控制有效性(xing)。

70、下(xia)面結合附(fu)圖(tu)對本發(fa)明作進(jin)一步(bu)詳細(xi)描述。

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