車輛論文出入庫-展示頁
2025-07-05 00:51本頁面
【正文】 s features are: a logic control, timing, counting, and other functions, intuitive programming language used ladder diagram language, software changes convenience, versatility and flexibility good.At present, the major PLC programmable controller is a small, lowcost, standardized, highspeed, intelligent, highcapacity, 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。關鍵詞： PLC 傳感器 車輛 可靠性AbstractWith productivity and the continuous development of science and technology, people39。為了防止意外計數錯誤，本系統(tǒng)采用反復程序校驗，來提高系統(tǒng)的可靠性。本設計是基于PLC的車輛出入庫管理系統(tǒng)，采用兩位LED來顯示車庫內車輛的實際數量。1969年，出現(xiàn)了可編程邏輯控制器PLC（Programmable Logic Controller），其特點是：具備邏輯控制、定時、計數等功能，編程語言采用直觀的梯形圖語言，軟件更改方便，通用性和靈活性好。摘要隨著生產力和科學技術的不斷發(fā)展，人們的日常生活和生產活動大量的使用自動化控制，不僅節(jié)約了人力資源，而且很大程度的提高了生產效率，又進一步的促進了生產力快速發(fā)展，并不斷的豐富著人們的生活。早期的自動控制系統(tǒng)是依靠繼電接觸器來實現(xiàn)的，其特點是：結構簡單、價格低廉、抗干擾能力強，可以實現(xiàn)集中控制和遠距離控制，但是其采用固定接線，通用性和靈活性差；又采用觸點的開關動作，工作頻率低，觸點易損壞，可靠性差。目前，可編程控制器PLC主要是朝著小型化、廉價化、標準化、高速化、智能化、大容量化、網絡化的方向發(fā)展，與計算機技術相結合，形成工業(yè)控制機
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