Leo Zhang
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Visit Booking & Access Management

Chunxiao Technology · 2020 – 2022

Role: Full-stack Engineer

Visit Booking & Access Management

Multi-terminal visitation platform for high-security scenarios (prisons, hospital ICU/NICU). Admin booking system, face recognition terminals with liveness detection, visitor WeChat mini-program, and WebRTC audio-video sessions.

99.5% face recognition accuracy, <1s verification, 30% efficiency gain, deployed in ICU/NICU/infectious disease

Problem

High-security facilities need controlled, auditable visitation with identity verification and pandemic-safe contactless options.

Solution

Multi-terminal platform: online booking + approval + time slot quota, face recognition access control with liveness detection, WebRTC remote audio-video visitation with full recording/audit, WeChat mini-program for visitors.

Key Highlights

  • Developed multi-terminal visit booking platform (admin, terminal, visitor)
  • Integrated face recognition with liveness detection for visitor entry/exit
  • Built WebRTC audio-video visitation with recording and audit
  • Supported contactless visit during pandemic

Tech Stack

JavaKotlinSpring CloudAndroidWeChat Mini ProgramWebRTCFace RecognitionLiveness DetectionMySQLRedisSMS GatewayHIS Interface

What I Learned

Face recognition for access control needs liveness detection; pandemic contactless visit requires robust WebRTC + audit trail; HIS integration is key for hospital workflows.