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The gate that writes its own register.

UHF RFID at the gate identifies every vehicle and trailer as it passes, knows which direction it went, and turns your yard's busiest choke point into its most reliable record — with nobody standing there holding a clipboard.

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If the question is "where is my truck on the N3 right now", you want GPS and our fleet tracking page. This page answers the other question — "which vehicles and trailers passed my gate, when, and in which direction" — and for that, RFID at a fixed read point beats GPS on accuracy, cost per vehicle and the fact that a passive tag never needs charging.

What the gate currently costs you

Most South African yards run their gate on some combination of a guard, a logbook and trust. The failure modes are familiar: trailers that left without a record, rental units returned against the wrong contract, standing time disputes that come down to whose diary you believe, and a monthly reconciliation where the yard count and the system count disagree by enough to matter. None of this is a people problem. A busy bidirectional gate simply moves faster than manual recording can, and the record degrades exactly when traffic peaks — which is exactly when you need it.

None of this is a people problem A gate run on a guard, a logbook and trust produces the same four failures everywhere: departures with no record, returns booked against the wrong contract, standing-time arguments settled by whichever diary is louder, and a monthly count that does not reconcile. The common cause is that a busy gate moves faster than writing, and it moves fastest exactly when the record matters most. What happens at the gate today Why it is not a people problem Trailers that left without a record A busy bidirectional gate moves faster than manual recording can. Nothing was skipped; the writing simply fell behind the traffic. Rental units returned against the wrong contract An identification problem at the moment of handover, settled weeks later by whoever's paperwork is louder. Standing-time disputes Two diaries and one invoice, with no third record to put between them. A yard count that disagrees with the system count Every month, by enough to matter, and with no way to say where the divergence entered. When the record is at its worst At peak traffic — which is exactly when it is needed.
None of this is a people problem A busy gate moves faster than writing, and fastest when the record matters most. At the gate today → Why Trailers that left without a record A busy bidirectional gate moves faster than manual recording can. Nothing was skipped; the writing simply fell behind the traffic. Rental units returned against the wrong contract An identification problem at the moment of handover, settled weeks later by whoever's paperwork is louder. Standing-time disputes Two diaries and one invoice, with no third record to put between them. A yard count that disagrees with the system count Every month, by enough to matter, and with no way to say where the divergence entered. When the record is at its worst At peak traffic — which is exactly when it is needed.
The four failures above, each traced to the same cause. A busy gate moves faster than writing, and it moves fastest exactly when the record matters most — which is why the fix is a reader at the boom rather than a stricter logbook.

How the automated gate works

  • Tags on the vehicles. Rugged UHF tags rated for outdoor life — on steel trailers that means on-metal tags, mechanically fixed with rivets or screws, readable at 5–8 m. Windscreen tags suit cars and light vehicles. Passive tags: no battery, no maintenance, a decade of service.
  • A read point at the gate. Typically one 4-port fixed reader driving four IP-rated outdoor antennas — two facing each direction of travel, staggered so the sequence of reads tells the system which way the vehicle moved. One lane, both directions, one reader.
  • Direction and event logic. Raw reads become business events: trailer 214 exited 14:32, tractor AB-12-CD entered 14:35. Optional sensors confirm direction and presence where reads alone are ambiguous.
  • Actuation, if you want it. The same event can drive the boom or gate for authorised tags — access control and record-keeping from one piece of infrastructure.
  • Integration into your system. Rental software, ERP, weighbridge, yard screen — the events land where your business already works. We hand over the reader SDK and API documentation with the system; the event stream is your property, and every future integration is yours to make.

Where it pays back

Rental & logistics yards

Every trailer movement tied to a contract automatically. Disputes about when a unit left or returned end, because the record is machine-made and timestamped.

Depots & DCs

Gate events reconciled against dispatch plans in real time — the vehicle that left without paperwork surfaces in minutes, not at month-end.

Plants & weighbridges

Vehicle identity fed straight to the weighbridge: no keyed-in registration numbers, no queue while the operator finds the right record.

What a project involves

A gate that works in a demo and a gate that works at month-end volumes are different engineering. The parts that decide it: RF design (reading your lane at 5–8 m without also reading the lane next door), tag selection and mounting for steel surfaces that get pressure-washed and knocked, direction logic that survives a vehicle stopping halfway, and integration that turns reads into records your staff actually use. We deliver the read point as a working whole — readers, antennas, tags, installation, configuration and integration — and prove direction accuracy at your gate with your vehicles before handover. Our reader price guide shows what the hardware layer costs and why the reader itself is the easy half of the budget.

Looking for which room a pump is in rather than which trailer left? That is asset tracking. Wondering whether the machine is healthy rather than where it is? That is condition monitoring.

FAQ

RFID gate automation — common questions

How far can a gate reader read a vehicle tag?

A properly designed UHF read point reads rugged on-metal tags reliably at 5–8 metres, and windscreen tags at similar range — comfortably enough for a vehicle moving through a gate at yard speeds. The range you get in practice is set by antenna choice, placement, cable length and transmit power, which is why we prove read performance at your gate with your vehicles before handover.

How does the system know which direction a vehicle went?

By antenna sequencing: two antennas face each direction of travel, staggered along the lane, so the order in which they see the tag reveals the direction. Where a gate layout makes reads ambiguous — very short approaches, vehicles that stop mid-lane — presence or direction sensors are added to confirm. The output is a clean entered/exited event, not a pile of raw reads.

Is RFID better than GPS for this?

For gate events, yes. GPS tells you roughly where a powered unit is; it needs a powered tracker per vehicle, and its accuracy is too coarse to say "crossed the gate line at 14:32, outbound". A passive RFID tag costs a small fraction of a tracker, needs no battery, and at a fixed read point produces an exact, timestamped, direction-aware record. For live location on the road, GPS wins — the two solve different problems and many fleets run both.

What tags work on steel trailers?

On-metal UHF tags — built with a spacer or ferrite layer so the steel surface does not detune the antenna — in an IP-rated housing, mechanically fixed with rivets or screws rather than adhesive. Standard label tags on bare steel read unreliably or not at all. EPC Gen2 is the protocol norm, so tags from any serious manufacturer work with any serious reader.

Can it open the boom automatically?

Yes. The same read event that writes the register can drive the boom or gate for authorised tags, so access control and record-keeping come from one installation. Most sites keep a manual override and an intercom path for visitors and exceptions — automation should remove the routine work from the gate, not strand the non-routine.

Will we be locked into your software?

No. We integrate the gate events into the system you already run — rental, ERP, weighbridge or a simple yard screen — and hand over the reader SDK and API documentation at commissioning. The event data is yours; any developer you choose can build on it later. We hold clients with engineering, not with a closed platform.

Automate the gate. Keep the record.

Tell us your lane layout and what passes through it. We will design the read point, prove it at your gate, and wire the events into your system.

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