But no, we will not be elevator about how an elevator works as it is primarily guided by principles that are better understood to the mechanical engineers. The whole set-up is rather complex with many control systems and processors forming the core of the elevator scheme. In this signal, we will deal with the role of electronics in the modern-day elevator system — the display control For simplicity, we will only be dealing with the fundamental circuitry or concept underlying the displays employed. The actual connections elevator circuits may-be larger and heavily complicated. You can consider it to be the same as the buttons you see in the elevator and so on. So this is how we take the input from the user. The next part is to process this unit in a form that is better understood by the processor. After the processing has been done, it is time to display the data to the user for which a device called the seven segment display or SSD is used. Now, it is the same device that displays time in a digital clock but signal it cannot be directly connected to the core circuitry. The SSD contains a set of seven LEDs, namely a-b-c-d-e-f-g-h that light up in accordance to the input to show Have a look For this the signal are made via a BCD-to-seven segment decoder that decodes the input into a format that is understood by the SSD. The format of the data output coming from the counter will be in the form of binary coded decimal or BCD. IC is most commonly used for this decoding purpose. This enables the SSD to deduce that the number 6 is to be displayed. This is how all the digits from 0 to 9 can be displayed using a single SSD. Coming back to the processing block, it can binary explained with the help of a situational example: Suppose you enter a multi-storey building and wish to go to the 3rd floor. Your first action will be to press the button at the ground floor and wait for the lift to come down if the lift is not at the ground floor initially. After the lift has dropped you at the 3rd floor, it will once binary go back to the ground floor i. Are you asking yourself how could it be that easy? Therefore the lift comes back to its ground state after every cycle unless a trigger is applied to call the elevator to some other floor. Not as easily done as said, but certainly the fundamentals remain the same. Try the new additions to the DoCircuits panel—specialized ICs up-down decade counter, bit comparator, decoder and the Seven Segment Display. Tags bit comparator segment display decoder elevator circuit elevator control circuit up down decade counter up-down counter Interesting — I love coming here and learning more. Htin Lin i like Do Circuits thank help me SHABIR HOW TO ADD STEPP MOTOR IN THIS CIRCUIT. TO SHOW THE MOVEMENT OF ELEVATOR Hunzala Shakeel hy. Experience virtual labs for electronics on browser. Work with real looking components and devices. Build circuits - run, analyse and save them in easy steps. The interconnections made within the circuit would illustrate the working of the display system. First, the input given by the user after binary encoding is given as input to the decade counter from the parallel input pins P0,P1,P2,P3. The output from the decade counter is passed to the magnitude comparator which is compared with the input from the P0,P1,P2,P3 pins. Elevator comparator has three outputs viz: greater than, lesser than, equal to. The comparison may be any of these three possibilities and therefore it is essential to decide whether to keep counting up or start counting down based on the binary output. This decision circuitry is designed as a combinational circuit with the help of logic gates. As can be seen in the circuit, the two outputs from the logic circuit are CE and UD.