Schematic Diagram of Intelligent Mobile Toilet

There is currently no publicly available standard schematic diagram for intelligent mobile toilets, but their core working principles can be analyzed technically:

I. Water-saving Technology System

1. Vacuum Negative Pressure Flushing System: A negative pressure environment is created in the pipeline by a vacuum pump, utilizing the atmospheric pressure difference to quickly suck waste into the waste storage tank. This system requires only 0.5-1 liters of water per flush, saving over 80% of water compared to traditional toilets. The core components include a vacuum pump, vacuum tank, pressure sensor, and odor-proof valve. The odor-proof valve adopts a liquid or gas seal structure to ensure no odor escapes from the pipeline.
2. Foam Sealing Technology: A foaming device mixes foaming liquid with water to generate dense foam that covers the surface of the toilet bowl. The foam layer effectively blocks odors and reduces waste adhesion, achieving 'zero-water flushing'. This technology requires a foam liquid storage tank, proportioning pump, and foam generator. The foam liquid typically contains biodegradable surfactants.
3. Recirculating Water Treatment System: Gray water from hand washing and toilet flushing is treated through multi-stage filtration (coarse filtration → fine filtration → membrane filtration) and ultraviolet/ozone disinfection before being reused for toilet flushing. The system includes a storage tank, filtration module, disinfection unit, and water quality monitoring sensor, enabling closed-loop water resource utilization.

II. Intelligent Control System

1. Human Body Sensing Module: Infrared or microwave sensors detect user approach and automatically trigger door opening, lighting activation, and toilet flushing procedures. After use, the system delays shutdown and initiates self-cleaning functions (such as spray disinfection or ultraviolet sterilization).
2. Environmental Monitoring System: Built-in ammonia, hydrogen sulfide, and temperature-humidity sensors continuously monitor internal air quality. When odor concentration exceeds standards, the system automatically activates the ventilation system or spray deodorization device (such as a plant essential oil atomization module).
3. Remote Management Platform: Toilet operation data (such as usage frequency, water level, power level, and equipment status) is uploaded to the cloud via IoT technology. Management personnel can view it in real-time through an app or web portal and receive fault warnings and cleaning reminders.

III. Solid-Liquid Separation and Resource Utilization Some high-end models are equipped with solid-liquid separation devices that separate excreta into liquid and solid forms using spiral extrusion or centrifugal technology. The liquid portion is treated by a biological membrane reactor and reused for toilet flushing, while the solid portion is dehydrated (with moisture content reduced to below 60%) and can be used for composting or biogas fermentation. The biogas power generation module can convert organic waste into electricity to power the toilet's lighting, ventilation, and other systems.

IV. Odor Control Technology A two-stage deodorization strategy is employed: the first stage blocks odor回流 through liquid-sealed valves or U-shaped bends; the second stage decomposes odor molecules using a photocatalytic oxidation module (TiO₂ coating + ultraviolet light) or filters residual gases through activated carbon adsorption.