車(chē)輛出入庫(kù)管理系統(tǒng)設(shè)計(jì)(doc畢設(shè)論文)-展示頁(yè)
2025-07-05 00:21本頁(yè)面
【正文】 Abstract：This design uses the light sensor signal acquisition, use PLC control, plete vehicle storage and display of statistical work. To be able to accurately count, whether a single vehicle to move back and forth, there are no error count and counting loss, but also in people through the optical sensor without error count. In order to save chip I / O port number and the digital tube driver, using HD7279keyboard display chip. PLC uses a circular scanning mode. Finally, using two LED display, can display the actual number of the vehicles in the garage. 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 sensor, program verification of whether a vehicle into the garage, when through the sensor does not count。, timely reset treatment, so as to avoid the vehicle in the vicinity of the sensor makes reciprocating motion error count.Key word：PLC。 optical sensor。 vehicle out of storage management目 錄1 引言……...................................................................................................................1 ……..............................................................................................1 PLC的基本結(jié)構(gòu)…….....................................................................................2 PLC的工作原理…….....................................................................................32 車(chē)輛出入庫(kù)管理系統(tǒng)的構(gòu)成……..........................................................................4……...............................................................................................4…….......................................................................................4……...............................................................................................53 PLC
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