Credential choices
The terminal documentation covers paper printing, IC/M1-card handling, QR recognition, LED guidance and barrier relay control. The installed hardware determines which routes are available.
SOFTWARE SYSTEM
Ticket & Card Entry System
BallotBox is an Android-based vehicle access control application running on an industrial ticket-box terminal. It drives the ticket/card dispenser, IC/M1 card reader, industrial camera, LED display and barrier to automate vehicle entry and exit. Drivers can take a printed ticket or card, tap an access card, or scan a QR code, while relay output directly controls the barrier. A built-in web admin panel enables remote configuration and APK updates, and the self-healing service auto-restarts after power loss, reboot or network changes—ideal for unattended parking entrances. The interface supports English, Chinese, Russian and Mexican Spanish.
Discuss your systemKey highlights
- A vehicle access control application running on an industrial Android terminal, centrally controlling the ticket dispenser, card reader, camera, LED display and barrier.
- Supports button ticket and card dispensing, IC/M1 card reading, QR code recognition, LED guidance and relay-based gate control for automatic vehicle release.
- Self-healing capability: auto-start on boot, restart after power loss, and listeners for network changes and USB plug/unplug events; the foreground service restarts automatically if it is killed (START_STICKY).
- A built-in local web admin panel (NanoHTTPD) supports remote configuration, accessory management and APK updates.
- Multilingual support: English, Chinese, Russian and Mexican Spanish, with a night mode. Card capacity is 200, and a dispensed card is automatically retracted if it is not taken within 30 seconds.
Core modules and features
| Module | What it does |
|---|---|
| Ticket & Card Dispensing | Button ticket and card dispensing with receipt printing; cards are retracted after 30 seconds if not taken, and the capacity is 200 cards. |
| IC/M1 Card Access | Reads the card UID at the card area with a beep; internal vehicles skip the ticket and their entry time is recorded automatically. |
| QR Code Recognition | The industrial camera or scanner recognizes the receipt QR code in JSON format and triggers the exit process. |
| LED Display & Voice Guidance | Welcome messages, advertisements and guidance text, with multilingual voice broadcast in MP3 format. |
| Relay Barrier Control | Outputs relay signals to control barrier opening and closing. |
| Built-in Web Admin Panel | A NanoHTTPD local web service with JWT login; supports remote configuration, accessory management and APK updates. |
| Accessory Management | Manages printers, cameras, card readers, card dispensers and retractors, barriers and LEDs centrally through USB, serial and HTTP. |
| Auto-Recovery & Listeners | Auto-start on boot, restart after power loss, and listeners for network changes and USB plug/unplug events; the service restarts automatically on errors. |
| Multi-language | English, Chinese, Russian and Mexican Spanish, with a night mode. |
PROJECT WORKFLOW
Ticket and card entry workflow
Coordinate the lane
- Agree when a driver presses for a ticket, presents a reusable card or uses QR recognition.
- Confirm the printer, card module, display, network and barrier interfaces.
- Test normal access, unavailable credentials and recovery after power or connection interruptions.
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