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Leo Zhang
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Entrance Road Weighing & Access Interlock

Chunxiao Technology · 2015 – 2017

Role: Developer (Field Software Integration)

Entrance Road Weighing & Access Interlock

Customer-site vehicle weigh-in system: read stable weight from entrance scales, raise overload warnings, and interlock with barrier/signal hardware. Serial/device integration under field constraints.

RS232/RS485

Serial Protocols

GPIO

Hardware Interlock

C# / .NET

Stack

2 years

Duration

Problem

Vehicle entrance weighing needs reliable software integration with scales, barriers, and alarm hardware in industrial environments.

Solution

Field integration: serial communication for weight reading, overload threshold detection, barrier/signal hardware interlocks. Documented interfaces for maintainability.

Key Highlights

  • Field workflow: vehicle on scale → software reads weight → triggers alarms → coordinates barrier interlocks
  • Advocated for team-aligned stack over individual familiarity
  • Documented interfaces and operational risks for next maintainer
  • Professional execution under non-preferred stack decision

Tech Stack

C#.NETWeigh-scale IntegrationBarrier InterlocksOverload Detection

What I Learned

Technical disagreements should focus on maintainability and bus factor; when the org picks a lane you don't own, execution quality and written-down risk beat hallway debate.