Regulating the Cell Assembly Line Issue Manual assembly lines have variations in operation time, making it difficult to maintain appropriate productivity. Proposal By collecting the operation time for all processes, it can visualize the bottleneck to clarify where balancing is required. System Image Products in Use LR6 Series 60mm LED Signal Tower Lights WDT-6LR-Z2 Wireless Data Acquisition System LR6 Transmitter WDR-LE-Z2-PRO Wireless Data Acquisition System WD PRO Receiver