Direct answer
The short answer
A UHF parkade system uses a managed long-range RFID credential—usually a windshield tag—to identify an authorized vehicle before it reaches the gate. Reliable performance depends on a controlled lane read zone, not simply the longest advertised distance.
What happens as the vehicle approaches
The reader energizes a compatible tag, receives its identifier and sends it to access control. If the credential is valid for that lane and schedule, the controller requests the gate to open. Gate safety devices remain responsible for monitoring movement and obstructions.
Why commissioning matters
Reader height, antenna angle, output power, windshield construction, tag position, adjacent lanes and vehicle speed all affect the read. WeTech tests representative vehicles and intentionally limits the detection zone when a longer zone could create unwanted reads.
- One approved tag position
- Lane-specific reader alignment
- Metalized-windshield testing
- Entry timing and tailgating review
- Separate free-exit and safety devices
Plan the credential transition
UHF tags can coexist with secure remotes, mobile release and pedestrian credentials. Each vehicle credential should have an assigned owner, status and cancellation procedure so sold or unreturned tags do not remain active.
UHF and LPR solve different problems
UHF reads an enrolled RFID credential. Licence-plate recognition reads an image of a plate. UHF is normally more predictable for resident access; LPR requires camera geometry, imaging, policy and exception handling. Some properties use UHF for the access decision and CCTV for visual context.
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