Wuzhipa Water Plant, Bao’an District, Shenzhen
Vanma Lock System Turns Permission Chaos into One-Tap Security
Industries
Municipal Water Supply
Scale
Key node in Shenzhen’s western water-network grid
Mission
End water shortages
Vision
Smart, secure and resilient water infrastructure
Vanma Lock for More Industries
Vanma Lock systems enhance security and streamline operations in the water utility industry and are also applicable across various sectors including telecommunications, power, banking, and logistics.
Challenge
Solution
Vanma supplied MS840 passive electronic cabinet locks and Bluetooth keys.
- No batteries inside the locks—power comes from the key, ensuring zero maintenance in a humid plant environment.
- Role-based permissions: an operator requests access in the central console; the supervisor approves; the key downloads the task list instantly.
- Audit Trail: every open/close event is time-stamped and uploaded when the key is docked.
Outcome
100%
60%
elimination of unauthorized cabinet access
reduction in server-room key-management workload
Details
Water plants are critical infrastructure; an unlocked PLC cabinet can shut down pumps or alter chemical dosing. Wuzhipa’s 2023 upgrade sought granular, revocable and auditable access to every server rack. Mechanical locks failed on all three counts, so Vanma’s passive electronic system was adopted.
1. Key Overload & Mis-Matches
- Problem: Technicians carried ring-of-20 keys; wrong key bent lock pins twice a year.
- Vanma Solution: A single Bluetooth key carries daily task lists for all MS840 locks; zero mechanical failures since deployment.
2. Unauthorized Entry
- Problem: Spare mechanical keys could be duplicated off-site.
- Vanma Solution: Rights are software-defined and auto-expire daily; keys become useless once time-window ends.
3. Paper Trail Gaps
- Problem: Sign-in sheets were illegible 30 % of the time, delaying audits.
- Vanma Solution: AES-128 encrypted logs upload automatically—immutable, legally admissible records.
By swapping mechanical locks for Vanma’s zero-maintenance, zero-downtime electronic system, Wuzhipa Water Plant has locked the digital backbone of Shenzhen’s western water supply.
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