Mobile Smart Toilet Design Solution

The design solution for mobile smart toilets should focus on three core elements: environmental monitoring, resource regulation, and information interaction, integrating Internet of Things (IoT) and automation control technologies for systematic transformation. The specific plan is as follows:

I. Environmental Monitoring System
Achieve full-dimensional data collection through multiple types of sensors:

1. Air Quality Monitoring: Deploy ammonia sensors, temperature and humidity sensors, and multi-in-one environmental sensors to monitor ammonia concentration, temperature, humidity, and other indicators in public toilets in real time. The integrated data supports linked control (e.g., automatic activation of exhaust fans when odor levels exceed standards).
2. Human State Recognition: Utilize laser detectors or infrared sensors to accurately identify human dynamic and static states, preventing misjudgments (e.g., prolonged occupancy) that could lead to incorrect toilet stall indicator lights, with a recognition accuracy rate of up to 99.5%.
3. Liquid Level Monitoring: Monitor water levels in septic tanks, sinks, etc., in real time through liquid level detection devices to prevent overflow risks.

II. Resource Regulation System

1. Water and Electricity Management: Dynamically adjust lighting and ventilation intensity based on usage frequency, automatically switching to energy-saving mode during unoccupied periods; use infrared sensing technology to control flush volume and reduce rigid waste.
2. Consumables Management: Monitor the remaining quantities of toilet paper, hand soap, and other consumables through IoT sensors, automatically triggering restocking reminders when levels fall below thresholds to prevent shortages.
3. Odor Control: When ammonia concentration exceeds standards, the system automatically increases the power of exhaust equipment and links with cleaning reminders, replacing traditional methods of timed fragrance spraying and fixed ventilation that only address symptoms.

III. Information Interaction System

1. User Interface: High-definition guidance screens at entrances display real-time toilet stall occupancy status and air quality data, automatically diverting traffic during peak periods; emergency call buttons connect to the management end for rapid response to emergencies.
2. Management Platform:
   • Gateways equipped with edge computing capabilities enable local data processing, ensuring core functions (e.g., toilet stall guidance, odor purification) remain operational even during network outages.
   • A cloud management platform aggregates data on equipment status and consumables usage, supporting consumables alerts and automatic fault dispatching to reduce manual inspection frequency.
   • Open API interfaces are provided for integration with smart city and smart sanitation platforms, enabling cross-system collaboration.

IV. Networking and Hardware Design
Adopt a hybrid networking solution combining LoRa wireless endpoints with RS485 wired backbones, balancing flexibility and stability. Core devices (e.g., laser toilet stall detectors, smart water and electricity meters) are independently developed across the entire supply chain to meet bidding qualification requirements.

Solution Advantages: Address issues such as unstable signals, frequent misjudgments, and high operation and maintenance costs in traditional public toilets. Balance initial construction costs through resource conservation and labor reduction, support both new construction and renovation scenarios, and offer modular equipment options to meet personalized needs.