For parking and residential access, RFID/HGS/OGS tag or license plate recognition? We compare cost, convenience, security and maintenance. Which one fits you?
There are two common ways to identify vehicles at parking and residential entrances: attach an RFID/HGS/OGS tag to the car, or read the plate directly. Both open the barrier automatically, but they differ in use, cost and security. This article clarifies which one fits you.
How Tag-Based Access (RFID) Works
Each vehicle is assigned a tag (sticker or card); when the reader at the entrance detects it, the barrier opens. Strength: tag reading is very fast and independent of light/weather.
Weaknesses:
- Per-vehicle tag/card cost plus distribution and management overhead.
- A tag can be lost, removed or moved to another car — a security gap.
- Issuing tags for guest vehicles is impractical.
How License Plate Recognition Works
The camera reads the vehicle's plate; if authorized, the barrier opens. Nothing is attached to the car. Strengths:
- No extra hardware (tag/card); the plate is already on the vehicle.
- Managing guest and temporary vehicles is easy.
- A full entry/exit record is kept by plate; querying is easy.
Note: accuracy depends on camera choice and placement (night, angle, dirt). Proper setup solves this.
Comparison Summary
- Cost: tags have a recurring per-vehicle cost; plate recognition needs no per-vehicle hardware.
- Security: a tag can be transferred/removed; a plate is unique to the vehicle.
- Guest management: far more practical with plate recognition.
- Installation: tag readers are simple; plate recognition needs good camera placement.
Many facilities use both (e.g., plates for subscribers, tickets for short-term guests). For a comparison with card/remote-based access, see Card Access or License Plate Recognition?.
Conclusion
If you only have a small, fixed set of vehicles, a tag system may suffice. If guest traffic, security and logging matter, plate recognition is usually more flexible and lower-maintenance. PlakaNet integrates plate recognition with your barrier and can run alongside an existing tag system. Explore our solutions or download the free version.
Related solution: Parking Lot Plate Recognition & Automation System
