Mobile Public Toilet Circuit Diagram Explanation

The circuits of mobile public toilets mainly involve the power supply architecture, the wiring of occupied/unoccupied indicator lights, and the overall wiring method. Here is a detailed diagrammatic explanation:

Smart Public Toilet Power Supply Architecture Circuit

The power supply for mobile public toilets starts with connecting to a 220V power source. After this power source is connected to the controller, it undergoes conversion through an AC-DC module. This module transforms alternating current into direct current, with common output voltages of 12V or 24V. The converted direct current supplies power to various devices, including occupied/unoccupied signs, ceiling-mounted speakers, exhaust fans, toilet stall human presence sensors, lighting fixtures, and smart locks for partition doors. These devices are connected to the controller via IO signals, enabling the controller to centrally control and manage them, achieving coordinated operation of various functions within the public toilet.

Wiring of Occupied/Unoccupied Indicator Lights in Public Toilets

The wiring of occupied/unoccupied indicator lights consists of a circuit system formed by three key hardware components. Transformer: Generally installed on the ceiling of the toilet, and an additional 220-volt socket is required to ensure its power supply. Occupied/Unoccupied Guidance Screen: Installed on the partition door panel of the toilet, two wires (positive and negative) are led out from the transformer to provide power support. At the same time, the occupied/unoccupied guidance screen is connected to the occupied/unoccupied door lock switch via a two-core signal wire. This connection method enables linkage between the two. When the door lock status changes, the guidance screen can promptly display the corresponding occupied/unoccupied information.

Overall Wiring Method

The wiring method of mobile public toilets is diverse and flexible. Wired Connection: Supports the use of network cables or power cords for connection. This method offers high stability and is suitable for scenarios with high requirements for data transmission and power supply stability. Wireless Connection: Can utilize wireless LoRa signal transmission, reducing the complexity and cost of wiring. It has advantages in areas where wired wiring is inconvenient. Moreover, many smart public toilet guidance screens have a plug-and-play feature. After installation, they do not require complex debugging and can automatically synchronize with the back-end management system, updating the toilet stall status in real-time, ensuring accurate and timely data, and providing convenience for users and managers.