Design and Implementation of an Automated People Mover Control System Prototype
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Abstract
This article develops a control system prototype of an Automated People Mover (APM) by using the Programmable Logic Controller (PLC) and applying V/F control in APM’s drive control according to three driving modes: 1) accelerating at the first station, 2) maintaining a constant velocity, and 3) reducing a velocity or braking during approaching the final station. The APM scale-downed control system prototype created in this study consists of the vehicle positioning system (a running track with positioning sensors), vehicle control system (a small testing vehicle), and system control center. This system prototype is used to test the effectiveness of the proposed APM’s automatic control system. The test results showed that the testing vehicle could move automatically as controlled in both automatic control mode and emergency mode with the highest speed at 5.86 meters per second. The error caused by the system prototype during the test was only 0.75–10% of all system control tests. In addition, the small-scale prototype of the control system effectively worked in the test, thus it can be adopted in a real APM control system and Thailand could potentially develop its own APM automated system in the future.
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