停車(chē)場(chǎng)管理系統(tǒng)需求分析1

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11、 數(shù)據(jù)流圖47. 系統(tǒng)功能描述58. 性能參數(shù)59.效果與問(wèn)題5停車(chē)場(chǎng)管理系統(tǒng)需求分析1.系統(tǒng)開(kāi)發(fā)原因隨著經(jīng)濟(jì)的發(fā)展和人民生活水平的提高，買(mǎi)車(chē)成為人們的奮斗目標(biāo)之一，當(dāng)然已經(jīng)有很多人買(mǎi)起了車(chē)。可是隨著車(chē)輛的增多，車(chē)輛的停泊問(wèn)題也隨之出現(xiàn)。這就使得各停車(chē)場(chǎng)需要更加先進(jìn)、更加完善的車(chē)輛管理系統(tǒng)，為車(chē)主帶來(lái)方便，使停車(chē)場(chǎng)的管理系統(tǒng)化。因此開(kāi)發(fā)了停車(chē)場(chǎng)管理系統(tǒng)。2.系統(tǒng)開(kāi)發(fā)目標(biāo)2.1停車(chē)場(chǎng)內(nèi)車(chē)輛信息的及時(shí)匯總，隨時(shí)了解停車(chē)場(chǎng)車(chē)位的使用狀況2.2統(tǒng)計(jì)車(chē)輛信息全部電腦化，提高工作效率和工作質(zhì)量2.3以停車(chē)場(chǎng)內(nèi)的全部車(chē)輛信息為基礎(chǔ)，動(dòng)態(tài)分配停車(chē)位，盡量達(dá)到車(chē)位的最高利用率2.4停車(chē)費(fèi)用的結(jié)算也由電腦來(lái)完成，

12、解決用戶(hù)所擔(dān)心的亂收費(fèi)問(wèn)題3.系統(tǒng)開(kāi)發(fā)任務(wù)實(shí)現(xiàn)停車(chē)場(chǎng)的現(xiàn)代化管理，記錄車(chē)輛信息，動(dòng)態(tài)分配車(chē)位，停車(chē)費(fèi)用結(jié)算，查看停車(chē)場(chǎng)車(chē)位的使用狀況，退出系統(tǒng)等功能，解決車(chē)輛停放難，亂收費(fèi)等問(wèn)題。4.數(shù)據(jù)字典對(duì)數(shù)據(jù)流程圖進(jìn)行基本分析后，確定以下幾張圖作為數(shù)據(jù)字典。表2 車(chē)位與車(chē)輛信息表表1密碼名字：車(chē)位與車(chē)輛信息表描述：車(chē)輛停車(chē)信息，包括停車(chē)時(shí)間等。定義：字符|數(shù)字名字：密碼描述：對(duì)管理人員及可登陸人員的真實(shí)性進(jìn)行驗(yàn)證。定義：字符|數(shù)字位置：登陸管理表表4車(chē)輛信息表名字：車(chē)位信息表描述：車(chē)位的狀態(tài)。定義：字符|數(shù)字名字：車(chē)輛信息表描述：車(chē)輛的各種信息包括車(chē)牌號(hào)，車(chē)輛注冊(cè)信息。定義：字符|數(shù)字表3 車(chē)位信息表5

13、.系統(tǒng)總體結(jié)構(gòu)停車(chē)場(chǎng)管理系統(tǒng)退出系統(tǒng)查看車(chē)位使用狀況計(jì)算停車(chē)費(fèi)用車(chē)輛離開(kāi)信息車(chē)輛到達(dá)信息車(chē)牌號(hào)到達(dá)時(shí)間離開(kāi)時(shí)間該車(chē)騰出的車(chē)位號(hào)無(wú)空余車(chē)位有空余車(chē)位每小時(shí)所需停車(chē)費(fèi)用到達(dá)時(shí)間車(chē)牌號(hào)離開(kāi)時(shí)間車(chē)牌號(hào)該車(chē)使用的車(chē)位號(hào)有車(chē)離開(kāi)時(shí)新到來(lái)車(chē)輛停放新到來(lái)車(chē)輛在便道上等候新到來(lái)車(chē)輛停放 6.數(shù)據(jù)流程圖7 數(shù)據(jù)流圖8系統(tǒng)功能描述7.1對(duì)車(chē)輛信息進(jìn)行記錄：車(chē)牌號(hào)，到達(dá)時(shí)間，離開(kāi)時(shí)間7.2自動(dòng)結(jié)算停車(chē)費(fèi)用：每小時(shí)停車(chē)費(fèi)*（離開(kāi)時(shí)間-到達(dá)時(shí)間）7.2查看停車(chē)場(chǎng)的使用狀況：如果有空余車(chē)位，則可讓新到的車(chē)輛停在空車(chē)位上；如果沒(méi)有空余車(chē)位，新到車(chē)輛在便車(chē)道上等候，有車(chē)離開(kāi)時(shí)，停在空車(chē)位上7.4退出系統(tǒng)：每天工作結(jié)束后，退出系統(tǒng)9性能參數(shù)性能參數(shù)主要是衡量系統(tǒng)運(yùn)行的效率。本系統(tǒng)主要衡量參數(shù)有以下幾個(gè)數(shù)據(jù)：1.系統(tǒng)的數(shù)據(jù)傳送時(shí)間。由于停車(chē)場(chǎng)管理系統(tǒng)主要是在停車(chē)場(chǎng)內(nèi)部運(yùn)行，因此，數(shù)據(jù)轉(zhuǎn)送過(guò)程與外部網(wǎng)絡(luò)不發(fā)生數(shù)據(jù)交換，所以轉(zhuǎn)送速度一般在幾秒內(nèi)。2.打