Zhengzhou Mobile Environmental Toilet Inspection

The inspection of mobile environmental toilets in Zhengzhou involves two core aspects: structural inspection and smart technology feature inspection.

I. Structural Inspection

1. Construction and Structural Verification Based on the original planning documents, use handheld laser rangefinders and steel tapes to conduct sampling verification of the building layout, including the distribution of toilet walls, door and window positions and sizes, as well as key parameters such as the axis dimensions and height of the structure, ensuring that the actual structure aligns with the design.
2. Structural Damage Assessment Focus on inspecting the main load-bearing components of the mobile environmental toilet, such as steel beams and columns, for signs of significant aging, deformation, or corrosion. Check for abnormalities at the joints of load-bearing steel components, including loose bolts and welding cracks. The reliability of the connections between steel beams and columns must be verified through both visual inspection and instrumental testing to ensure there is no risk of fracture or failure.
3. Structural Safety Calculation and Analysis According to the 'Building Structural Load Standard', combined with on-site inspection data, original planning, and construction documents, use PKPM software to perform load-bearing capacity calculations and analysis of the structure. Consider external factors such as dead loads (e.g., self-weight), live loads (e.g., human activity), wind loads, and seismic effects, as well as the measured values of material parameters (e.g., steel strength), to comprehensively evaluate the safety of the structure under normal use and extreme conditions.
4. Steel Material Function Inspection (Optional) For the steel structure components, non-destructive testing of welds (e.g., ultrasonic testing) can be conducted to detect internal defects. Test the mechanical properties of the steel, including tensile strength, yield strength, and impact toughness, to ensure the materials meet design requirements. This inspection is non-mandatory and will be carried out based on the owner's needs.

II. Smart Technology Feature Inspection

1. Smart Sensor System Verification Inspect whether infrared or microwave sensors are used to automatically detect human presence and enable联动 control (linked control) of door locks, lighting, and ventilation systems. For example, when the sensor detects someone entering, the lighting system should automatically turn on, and the ventilation system should operate simultaneously; after the person leaves, the equipment should delay shutting off to conserve energy.
2. Environmental Monitoring Module Function Testing Verify whether the environmental monitoring module can collect real-time data on temperature, humidity, and ammonia concentration, and transmit this information to a management platform via IoT technology. Check the accuracy of the sensors (e.g., the error range for ammonia concentration detection) and the stability of data transmission to ensure that managers can remotely monitor the toilet's environmental status and promptly schedule cleaning or maintenance.