車輛論文出入庫(kù)-文庫(kù)吧
2025-06-11 00:51 本頁(yè)面
【正文】 ghcapacity, in the direction of the network, and puter technology, formation of industrial control systems, distributed Control Systems DCS (Distributed Control System), fieldbus control system FCS (Field bus Control System), the PLC will enable more powerful, more reliable, more convenient to use, a wider scope. The design is based on the storage of vehicles PLC management systems, LED used two vehicles in the garage to show that the actual number. The use of two light sensor to monitor vehicle access and plete count, the two vehicles entered the house through the sensor and a digital display, two vehicles going through the sensor by a digital display, but only after a sensor vehicles will not count. In order to prevent accidents counting error, the system used repeatedly checking procedures to enhance the reliability of the system. First of all, pay attention to control the distance between the two sensors, access to the garage with the certification procedures for the vehicles, through the sensor when people do not count。 Secondly, the introduction of the logical interlocked, and counting would start by counting lock, a Canadian Counting will have to lock pulse by pulse count, so in order to ensure reliability。 Finally, a reduction of the processing time to avoid vehicles in the vicinity of sensors for counting from the wrong campaign. Key words: PLC Sensor Vehicles Reliability1 引言近年來(lái)，我國(guó)的汽車產(chǎn)業(yè)飛速發(fā)展。另外，國(guó)家把城市化、城鎮(zhèn)化作為我國(guó)經(jīng)濟(jì)發(fā)展的一個(gè)方向，城市人口的增長(zhǎng)和規(guī)模的擴(kuò)大為城市交通帶來(lái)更大發(fā)展機(jī)遇的同時(shí)，也勢(shì)必會(huì)給城市交通造成更大的壓力。為滿足日益增長(zhǎng)的交通需求，改善交通狀況和提高交通設(shè)施利用效率迫在眉睫。對(duì)于交通繁忙的城市中心區(qū)，通過(guò)對(duì)機(jī)動(dòng)車停車需求進(jìn)行控制可以有效地限制進(jìn)出這些地區(qū)的機(jī)動(dòng)車出行量。這些措施包括定額分配停車位數(shù)量、停車位使用收費(fèi)及短缺停車庫(kù)配給標(biāo)準(zhǔn)等三種比較常用的調(diào)節(jié)方法。停車場(chǎng)供給量的確定需要城市管理人員和技術(shù)人員的共同合作研究，許多城市往往同時(shí)采取三類方法。傳統(tǒng)的人工管理停車場(chǎng)導(dǎo)致的信息滯后已經(jīng)不能滿足城市交通的信息需求和快速、高效調(diào)節(jié)交通運(yùn)輸狀況的要求，必須對(duì)停車場(chǎng)在管理上進(jìn)行智能化改造，通過(guò)對(duì)其進(jìn)行智能化管理，使其成為整個(gè)智能交通系統(tǒng)信息管理中的一個(gè)組成部分，實(shí)時(shí)向交通管理中心提供停車場(chǎng)泊車狀況信息。交通管理中心通過(guò)對(duì)整個(gè)城市的停車場(chǎng)實(shí)時(shí)狀態(tài)信息進(jìn)行統(tǒng)計(jì)分析后，對(duì)停車進(jìn)行調(diào)節(jié)。因此，信息互動(dòng)也是城市智能交通系統(tǒng)對(duì)現(xiàn)代停車場(chǎng)提出的新要求。作為停車場(chǎng)本身來(lái)說(shuō)，隨著大型、超大型停車場(chǎng)的
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