对原驾驶室设计缺陷进行分析后，提出了加装防撞装置的方案，并对驾驶室PLC逻辑控制程序进行了改造。提高了卸船机驾驶室的安全性。
This paper puts forward the plan of installing the anti-collision device, and reform the PLC logic control program of cab, which enhances the safety of the cab of the ship unloader.
本文研制设计了适合冲压机械的红外光安全装置，此装置具有动作速度快、矩形光幕、故障异或逻辑自检等优点。
In this paper, an infrared safety device is developed to fit the for - ging press mechanism. The device has the advantage of quick action, square light screen and breakdown self check.
本文研制设计了适合冲压机械的红外光安全装置，此装置具有动作速度快、矩形光幕、故障异或逻辑自检等优点。
In this paper, an infrared safety device is developed to fit the for - ging press mechanism. The device has the advantage of quick action, square light screen and breakdown self check.
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