The escalator energy-saving device is designed to reduce the energy consumption of escalators in low-load or no-load conditions. The device includes a pressure sensor, entrance and exit detection switches, and an energy-saving controller. The pressure sensor is installed at the bottom of each step of the escalator to detect if someone is standing on the step. Entrance and exit sensors are installed at the entrance and exit of the escalator, respectively, and are connected to the circuit that controls the escalator’s operation. A microcontroller receives signals from the pressure sensor, entrance sensor, and exit sensor, and controls the circuit of the escalator accordingly.

Function:

1. Pressure sensor detects load: The energy-saving device typically includes a pressure sensor installed at the bottom of each step. When the sensor detects someone standing on the step, it indicates that the escalator is loaded and needs to operate normally; otherwise, it indicates that the escalator is in a low-load or no-load state.

2. Entrance and exit sensors detect passenger flow: In addition to the pressure sensor, the energy-saving device also includes entrance and exit sensors installed at the entrance and exit of the escalator. These sensors are used to detect passenger entry and exit.

3. Energy-saving control circuit: When the pressure sensor detects someone standing on the step, or the entrance sensor detects passengers entering the escalator, the microcontroller receives the corresponding signals. The microcontroller controls the operation circuit of the escalator based on the received signals.

4. Reduce speed or stop operation: When the energy-saving device detects that there is no one on the escalator or the load is light, the microcontroller controls the operation circuit of the escalator to reduce the speed or stop the operation completely. This can reduce the energy consumption of the escalator in low-load or no-load conditions.

5. Timing control and automatic start-stop function: The energy-saving device may also have timing control and automatic start-stop functions. For example, during off-peak hours or at night, the energy-saving device can automatically start to reduce energy consumption.

In summary, the escalator energy-saving device optimizes the energy consumption of escalators by monitoring the load, adjusting the speed, and controlling the operating time, thereby achieving the purpose of energy saving.