Mobile Smart Toilet Detection System

The Mobile Smart Toilet Detection System is an integrated system that utilizes Internet of Things (IoT) technology to achieve intelligent management of public toilets, enabling environmental monitoring, data transmission, intelligent analysis, and service applications through a multi-tiered architecture.

1. Perception Layer: The Core of Data Collection
The perception layer consists of various IoT sensors responsible for real-time collection of environmental parameters inside public toilets. For example, infrared sensors and laser human body sensors can detect the occupancy status of toilet stalls, with the laser sensor having a sensing range of 20mm-8m, unaffected by light interference, and offering high stability. Air quality sensors monitor the concentration of harmful gases such as ammonia and hydrogen sulfide, providing data support for environmental assessment. These sensors continuously collect physical and chemical parameters, forming a raw data stream.

2. Network Layer: The Bridge for Data Transmission
The network layer enables stable data transmission through wireless communication technologies. Common solutions include Narrowband IoT (NB-IoT), LoRa, or 4G/5G. For instance, LoRa technology, with its low power consumption and long-distance characteristics, is suitable for restroom renovation projects in office buildings. Sensors report data wirelessly to LoRa gateways, requiring only power line installation, simplifying the construction process. The stability of data transmission ensures the reliability of real-time monitoring.

3. Platform Layer: The Central Hub for Data Processing and Analysis
The platform layer serves as the 'brain' of the system, responsible for real-time computation and historical trend analysis. It can count data such as toilet usage frequency, water consumption, and detergent levels, and calculate the air quality index. When parameters exceed preset thresholds (e.g., when the number of stall usages reaches a threshold or gas concentration exceeds standards), the system automatically generates cleaning or maintenance work orders, achieving intelligent management. For example, a project analyzed through the platform found peak toilet usage on weekends, allowing for advance adjustment of cleaning frequencies.

4. Application Layer: The Terminal for Service Delivery
The application layer provides differentiated services for managers and the public. Managers can receive cleaning schedules, consumable alerts, and facility diagnostics via mobile terminals; the public can view the number of available stalls (green indicating availability, red indicating full occupancy) through guide screens or mobile devices and use emergency call functions. For example, the gateway transmits data to an LED guide screen at the restroom entrance, updating stall availability information in real-time to enhance the user experience.

5. Specific Function Implementation

• Toilet Stall Detection: Utilizes infrared, microwave radar, or laser technology, with the laser solution becoming mainstream due to its strong anti-interference capabilities.
• Cleaning Instruction Generation: The system automatically assigns tasks based on usage frequency or air quality, with cleaning staff receiving specific locations and types via mobile terminals.
• Facility Monitoring: Continuously monitors water supply pipeline pressure, lighting energy consumption, and sewage equipment operation logs, identifying abnormal patterns in advance to reduce downtime risks.