Lift push button panels showing (a) the outside panel with up and down

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Download scientific diagram | Lift push button panels showing (a) the outside panel with up and down button to make a hall-call and digital indication of floor where lift is presently located and (b) inside panel of the lift with push-buttons 1 to N for choosing different floors, D.O. and D.C. buttons for manual door opening and closing respectively and E for emergency call. This panel in (b) is meant for making car calls The computer can process the following information which are available as input to provide optimal group control for the lifts. This information can be classified into operational, landing and group information [41]. I. Operational information for each lift may include factors such as: (a) operational mode (b) running state (moving or stationary) (c) position (d) intended direction of movement (e) if stationary, door status (opening, open, closing, closed) (f) number of lift calls (g) lift vehicle load (h) rated speed of the lift (i) current system response time to each landing call. II. Landing information may include: (a) number and direction of landing calls (b) waiting time of each landing call (c) computed traffic intensity at each floor. III. Group information include: (a) measured maximum landing call waiting times (b) measured average landing call waiting times. from publication: Design of Lift Group Control Systems based on PLC | Lifts are presently inevitable requirements in modern day building complexes especially multiple floor buildings to keep up with human transportation. Due to this fact, efficient, cost-effective and reliable lift systems are required in these buildings. In this work, the | PLC, Programmable Logic Controllers and Hardware | ResearchGate, the professional network for scientists.