本文關(guān)鍵詞： 動(dòng)態(tài)分配 倉(cāng)儲(chǔ)系統(tǒng) 周轉(zhuǎn)率 RFID 交叉變異函數(shù) 局部最優(yōu)　出處：《浙江理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：倉(cāng)儲(chǔ)是企業(yè)生產(chǎn)和銷售之間的重要橋梁,現(xiàn)代化高效率的數(shù)字化倉(cāng)儲(chǔ)系統(tǒng)的關(guān)鍵在于提高倉(cāng)庫(kù)的利用率、減少貨物盤點(diǎn)耗時(shí)以及優(yōu)化貨位的分配。優(yōu)化后的貨位分配策略能夠有效的提高倉(cāng)庫(kù)的周轉(zhuǎn)率,從而使得企業(yè)從生產(chǎn)到銷售運(yùn)轉(zhuǎn)的更加流暢,使客戶滿意度提高。本文對(duì)結(jié)合RFID技術(shù)的現(xiàn)代化倉(cāng)儲(chǔ)進(jìn)行研究,首先對(duì)RFID進(jìn)行科學(xué)合理的設(shè)計(jì)與部署來(lái)解決傳統(tǒng)倉(cāng)庫(kù)對(duì)貨物出入庫(kù)時(shí)數(shù)據(jù)上報(bào)及查對(duì)困難,耗時(shí)又容易出錯(cuò)的不足。重新設(shè)計(jì)劃分倉(cāng)庫(kù)庫(kù)區(qū),有效地提高倉(cāng)庫(kù)的利用率,大大地降低了貨位處于空閑的時(shí)間。其次,構(gòu)建貨物出入庫(kù)動(dòng)態(tài)貨位分配數(shù)學(xué)模型,通過(guò)對(duì)相應(yīng)算法進(jìn)行改進(jìn)來(lái)解決貨位分配問(wèn)題。具體研究如下:1.針對(duì)傳統(tǒng)倉(cāng)庫(kù)對(duì)出入庫(kù)貨物信息采取人工或半自動(dòng)化錄入,耗費(fèi)極大的時(shí)間又容易出現(xiàn)偏差的問(wèn)題,在倉(cāng)儲(chǔ)系統(tǒng)中引進(jìn)RFID技術(shù)實(shí)現(xiàn)數(shù)據(jù)的自動(dòng)采集。根據(jù)庫(kù)內(nèi)空間進(jìn)行科學(xué)布局,對(duì)于劃分到具體的貨位進(jìn)行RFID部署設(shè)計(jì)。設(shè)計(jì)采用在每個(gè)貨位中心位置安裝了地埋式電子標(biāo)簽的方式,真正做到數(shù)字化貨位管理。RFID電子標(biāo)簽采用地埋式設(shè)計(jì),有效地解決了以往電子標(biāo)簽在貨物表面容易損壞、污染、脫落、干擾的問(wèn)題,保證了數(shù)據(jù)讀取的高效性、準(zhǔn)確性。2.RFID天線的設(shè)計(jì)與部署對(duì)整個(gè)RFID系統(tǒng)性能產(chǎn)生很大的影響。RFID電子標(biāo)簽與天線之間因極化方式不同,會(huì)出現(xiàn)標(biāo)簽天線與閱讀器天線極化方向匹配失衡的情況。有時(shí)RFID天線的部署方式不合理產(chǎn)生部分信號(hào)丟失問(wèn)題。本文采用了一種圓極化RFID天線的設(shè)計(jì)方式,對(duì)天線進(jìn)行了科學(xué)合理的部署設(shè)計(jì),有效地解決了數(shù)據(jù)讀取失敗的問(wèn)題,同時(shí)也改善了RFID讀取時(shí)部分信號(hào)丟失的情況。3.針對(duì)傳統(tǒng)入庫(kù)貨位分配策略不能有效的滿足如今貨物存取量大、存取頻繁和存儲(chǔ)貨位要求動(dòng)態(tài)變化的難題,本文提出了一種基于改進(jìn)遺傳算法的動(dòng)態(tài)貨位分配策略,該策略解決的是多目標(biāo)優(yōu)化的問(wèn)題。對(duì)于入庫(kù)貨位動(dòng)態(tài)分配問(wèn)題需要綜合考慮貨位的分配涉及到的出庫(kù)時(shí)間最短、貨物同一原則,以及不同時(shí)間段貨物周轉(zhuǎn)率的變化等因素。在尋優(yōu)過(guò)程中通過(guò)對(duì)種群均值的分析,動(dòng)態(tài)地對(duì)遺傳算法的交叉率和變異率進(jìn)行調(diào)整而得到最優(yōu)解。這種在算法迭代的過(guò)程中動(dòng)態(tài)地調(diào)整交叉變異算子大小的策略能夠很好地改善算法搜尋時(shí)易陷入早熟的不足,最終找到最優(yōu)的分配貨位。4.為了使貨物能夠及時(shí)高效的運(yùn)送轉(zhuǎn)移到達(dá)客戶手里,對(duì)在途車輛實(shí)時(shí)定位跟蹤有重要的意義。實(shí)時(shí)跟蹤不僅可以對(duì)在途貨物進(jìn)行實(shí)時(shí)監(jiān)控,而且也利于提高倉(cāng)儲(chǔ)作業(yè)效率。通過(guò)集成企業(yè)GPS系統(tǒng)和GIS系統(tǒng),開(kāi)發(fā)動(dòng)態(tài)物流服務(wù)平臺(tái),實(shí)現(xiàn)對(duì)貨物運(yùn)輸動(dòng)態(tài)管理。
[Abstract]:Storage is an important bridge between enterprise production and sales. The key of modern and efficient digital storage system is to improve the utilization ratio of warehouse. The optimized allocation strategy can effectively improve the turnover of the warehouse and make the enterprise from production to sales operation more smooth. To improve customer satisfaction. This paper studies the modern warehousing combined with RFID technology. First of all, the scientific and reasonable design and deployment of RFID is carried out to solve the difficulties of data reporting and checking in and out of the warehouse of traditional warehouse, which is time-consuming and error prone. Effectively improve the utilization rate of warehouse, greatly reduce the free time. Secondly, build the mathematical model of the dynamic allocation of goods into and out of storage. Through the improvement of the corresponding algorithm to solve the problem of cargo allocation. The specific research is as follows: 1. For the traditional warehouse to store goods information manual or semi-automatic input. It is very time-consuming and prone to the problem of deviation. The RFID technology is introduced into the storage system to realize the automatic data collection. According to the space in the warehouse, the scientific layout is carried out. The RFID deployment design is carried out for the specific cargo locations. The design adopts the method of installing buried electronic tags at the center of each cargo location. Truly achieve digital cargo management. RFID electronic label using buried design, effectively solve the former electronic labels on the surface of goods easily damaged, pollution, fall off, interference. Ensure the high efficiency of data reading. 2. The accuracy of the design and deployment of RFID antenna has a great impact on the performance of the whole RFID system. The polarization between RFID tags and antennas is different. The mismatch of the polarization direction of tag antenna and reader antenna will occur. Sometimes the problem of partial signal loss is caused by the unreasonable deployment of RFID antenna. A circular polarized RFID antenna is designed in this paper. The way. The antenna is designed scientifically and reasonably, which effectively solves the problem of data reading failure. At the same time, it also improves the situation of partial signal loss when RFID reads. 3. The traditional allocation strategy can not effectively meet the large quantity of goods access. This paper presents a dynamic location allocation strategy based on improved genetic algorithm. The strategy solves the problem of multi-objective optimization. For the dynamic allocation of cargo spaces, it is necessary to consider the shortest outgoing time involved in the allocation of cargo spaces and the same principle of goods. As well as the change of goods turnover rate in different time periods. Through the analysis of the mean value of the population in the process of optimization. The optimal solution is obtained by dynamically adjusting the crossover rate and mutation rate of genetic algorithm. This strategy of dynamically adjusting the size of crossover mutation operator in the iterative process of the algorithm can improve the algorithm searching easily early. Undercooked. Finally find the optimal distribution of goods. 4. In order to enable the timely and efficient transfer of goods to the customer. Real-time tracking of vehicles in transit is of great significance. Real-time tracking can not only monitor goods in transit, but also improve the efficiency of warehousing. By integrating enterprise GPS system and GIS system. Develop dynamic logistics service platform to realize the dynamic management of cargo transportation.
【學(xué)位授予單位】：浙江理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP391.44

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