Mobile Toilet QR Code Payment Device
The mobile toilet QR code payment device is an intelligent management device that enables users to obtain toilet access and settle fees through QR code payments. Devices in different regions vary in terms of pricing standards and usage rules.
Pricing Standards and Usage Durations A mobile public toilet in Fujian charges a flat rate of 10 yuan per use. After payment, the user's mobile phone displays options for 'Open' and 'End Order'. Clicking 'Open' grants access to the toilet. The countdown shown in the mini-program is not the actual usage time but rather the 'occupancy lock time' for that period, during which no one else can scan the code to enter. In practice, users can use the toilet for an unlimited duration; the door lock will not automatically open after the countdown ends, nor can outsiders scan the code to enter. Users must unlock the door from the inside using a key. In contrast, a small mobile public toilet in Hangzhou adopts a 'usage duration-based pricing' model, charging 1 yuan per use for a 15-minute period. After scanning the code and paying, the door lock opens automatically, and the system starts counting down. Before the time expires, a voice prompt reminds the user. If usage exceeds the allotted time, an additional fee of 0.5 yuan is charged for every 5 minutes of overuse, and users receive an electronic invoice upon successful payment.
Device Functions and User Experience The device design in Fujian focuses on 'time slot occupancy management', meeting users' needs for privacy and convenience through high pricing and unlimited usage durations. However, users must manually unlock the door with a key, which may inconvenience some. The device in Hangzhou emphasizes 'precise timing-based pricing', encouraging users to manage their time reasonably through low pricing and segmented fees. It also provides voice prompts and electronic invoicing services, enhancing transparency and convenience.
Technical Implementation and Operational Logic Both types of devices are based on QR code payment technology but differ in operational logic. The Fujian toilet uses 'time slot locking' to prevent simultaneous scanning conflicts, allowing users to determine their actual usage duration. The Hangzhou toilet employs 'countdown control' to ensure efficient resource utilization, with overuse fees ensuring fairness and increasing operational revenue.
