Busy gates quickly show that a vehicle access control system isn’t working properly. Queues form, license plates need to be checked, and errors begin to occur.
Vehicles using RFID tags have a digital identity that the system can access, verify, and record.
This guide will help you differentiate between tag types and avoid project errors.
What Are RFID Tags for Vehicles?
Definition
RFID vehicle tags act as digital identifiers for cars, trucks, and machinery. Each tag contains an identifier linked to a specific vehicle.
They can be used at gateways, yards, parking facilities, and toll gates. RFID technology helps identify vehicles but doesn’t track their real-time location like GPS.
How RFID Vehicle Identification Works
When a vehicle enters the reader’s range, the RFID tag sends the vehicle’s identifier to the reader.
The system then verifies the vehicle’s identifier. Once verified, the entrance gate opens or the toll transaction is processed.
Types of RFID Tags for Vehicles
| Types | Best For | Issue |
| Windscreen tag | Parking and gate access | Coated windscreens |
| UHF hard tag | Trucks and machinery | Larger size |
| Sticker tag | Fleet deployment | Surface compatibility |
| On-metal tag | Metal vehicles and machinery | Higher cost |
Windscreen RFID Tags
Windscreen RFID tags are placed on the inside of the front windscreen. They’re suitable for parking lots, offices, hotels, and gated communities.
Some have security cuts that destroy the tag when it’s removed. Use them carefully, as they may not work well on coated windscreens.
UHF RFID Hard Tags
UHF RFID hard tags have a durable plastic or resin housing. It’s suitable for trucks, trailers, forklifts, and construction machinery.
The housing protects the chip from moisture, dust, impact, and vibration.
RFID Sticker Tags
RFID sticker tags are a lower-cost option. They can be supplied pre-printed, programmed, and ready to install.
They should be selected according to the surface, like glass or plastic.
On-Metal RFID Tags
A standard RFID label may make incorrect readings when placed on a metal surface.
On-metal RFID tags use special antenna technology. They’re suitable for tankers, trailers, machinery, and similar applications.
RFID Frequencies Used for Vehicle Identification
| Band | Applications | Why It Is Suitable |
| UHF | Gates, yards, and parking | Works over several meters |
| HF | Short-range vehicle reading | Provides controlled short-range reading |
| LF | Older vehicle systems
| Compatible with older equipment |
UHF RFID tags are the most common choice for automatic vehicle identification. They provide a suitable reading distance for gates, yards, and parking areas.
HF operates at 13.56 MHz, while LF normally operates at 125 or 134.2 kHz. Both are suitable for short-range reading.
Whichever band you choose, the RFID tag and reader must be compatible with each other. Local radio regulations should also be followed.
Applications of RFID Tags for Vehicles
Fleet Management
RFID helps register vehicles as they pass specific checkpoints. A vehicle can be recorded at the depot upon arrival, during fueling, or at service visits. However, GPS may still be needed for live location tracking between these points.
Parking Access Control
The vehicle tag is scanned by the reader as the driver arrives. If the access control system confirms that access is valid, the barrier opens.
Toll Collection
Some toll collection systems use RFID to identify vehicles. Different toll networks may use different protocols, so compatibility should be checked before ordering any tags.
Logistics and Transportation
RFID helps identify trucks at gates, weighbridges, and loading zones. For example, workers can link an incoming truck to its delivery schedule.
Automotive Manufacturing
Car manufacturers can track vehicle bodies during production, testing, and storage. This provides better visibility into each vehicle’s manufacturing status.
Gated Communities
Residents can enter the property without slowing down to scan an access card. Tamper-proof tags can also prevent a single parking permit from being used on multiple vehicles.
Corporate and Industrial Sites
You can set access rights based on time periods and user types. For example, a delivery truck may be allowed to enter only during a specific time period.
Electronic Vehicle Registration
Government organizations may use RFID for vehicle registration, inspection, and identification. These applications require strong security and accurate data matching.
Benefits of Using RFID Tags for Vehicles
Faster Vehicle Identification
The RFID system detects the tag when the vehicle approaches. This reduces the driver’s waiting time at the gate.
Reduced Manual Labour Costs
Guards no longer need to inspect each tag manually. Instead, they only need to deal with unusual situations.
Improved Security
You can block access to the expired tags and prevent unrecognized vehicles from entering. The system also keeps an accurate entry record.
Better Data Accuracy
Every detection is linked to the vehicle data that’s already stored in your records.
Long-Term Durability
The right RFID tag can withstand dust, moisture, and other environmental conditions.
RFID Tags for Vehicles vs Other Identification Technologies
RFID vs Barcode
Barcodes require visibility and close-range scanning, while RFID can identify a vehicle from a distance. This makes RFID easier to use at gates.
RFID vs Licence Plate Recognition
License plate recognition technology uses a camera to read the vehicle’s license plate. It’s suitable for visitors who do not have RFID tags. RFID is generally faster for authorized users.
These two technologies are often used together.
RFID vs GPS Tracking
RFID tags work when they come near an RFID reader, while GPS technology tracks a vehicle’s movement from one place to another.
How to Choose the Right RFID Tags for Vehicles
Define Your Application
Identify what your application requires from the tag, such as parking access, tolling, weighing, or production tracking, and make sure the selected tag meets those needs.
Choose the Right Frequency
For most long-range vehicle applications, a UHF RFID tag is the best choice. You can choose HF or LF tags if the vehicle comes very close to the reader.
Check the Mounting Surface
Tag performance depends greatly on the mounting surface. Glass, headlight lenses, and metal require different antenna designs.
Check the Windscreen Type
UHF tags may not perform well if the windscreen has a metallic coating, heating wires, or metallic tint. Find a suitable area near the rearview mirror, or test the headlight tags.
Plan the Read Zone
Determine where the reader should scan the tag, and consider the lane width, vehicle speed, and nearby traffic. A longer read range doesn’t always mean better performance because the reader may detect a tag in a neighboring lane.
Review Durability
Consider the tag’s material, adhesive type, housing, and expected lifespan.
Select the Chip and Memory
The EPC contains the main vehicle identification code. The TID provides a unique ID for the chip itself. Additional user memory allows extra data to be stored. Short codes are sufficient for most access projects.
Decide the Security Level
For low- and medium-security projects, the tag may use locked memory and a password. For medium- and high-security projects, a secure chip with additional back-end verification is recommended.
Confirm Customization
Provide details about the required printing, numbering, encoding, locking, data verification, packaging, and other services. Also specify the minimum order quantity, delivery date, and data format requirements.
Check the Working Environment
Consider the temperature, humidity, UV exposure, chemicals, and vibration, cause these can affect tag performance.
Test Samples on Real Vehicles
Use sample tags to test several vehicle models under actual working conditions with the final reader and lane setup.
What Determines RFID Vehicle Tag Read Range?
The reading distance depends on the entire system, not just the tag.
Reader power, antenna orientation, vehicle speed, and the mounting surface all affect performance.
A well-designed read zone is more important than maximum range alone.
Do RFID Tags Work Through Car Windscreens?
Yes, RFID tags on cars normally work through glass.
Problems may be caused by metal coatings, heating wires, or metallic tint, as these can interfere with UHF signals.
Therefore, check for a clear area around the rearview mirror. Headlight RFID tags may also be a good option.
How to Install an RFID Windscreen Tag
Clean and dry the selected surface first. Even a small amount of oil or dirt can weaken the adhesive.
Always apply all tags in the same orientation. Make sure they are kept away from metal, folds, and air pockets.
After installation, test the vehicle at its usual entry speed. Once a tamper-evident tag has been applied, do not move it.
RFID Vehicle Tag Technical Specifications
| Item | Options |
| Frequency | UHF frequencies in the 860-960 MHz range |
| Protocol | EPC Gen2 and ISO/IEC 18000-63 |
| Form | Labels, cards, and hard tags |
| Materials | PET, PVC, ABS, PPS, and epoxy |
| Memory | EPC, TID, and user memory |
| Read range | Depends on the tag type, reader, antenna, and installation environment |
| Protection | Weatherproof or defined by an IP rating |
| Customization | Printing, encoding, locking, and packaging |
This specification data is useful; however, it doesn’t show how the tag will perform in your installation environment.
Performance can be affected by several factors, including the reader, antenna, installation position, and surrounding environment.
Vehicle RFID Security and Anti-Cloning
The tag itself isn’t the only factor that matters for security. The reader, software, and access control policy should also be considered.
Locked memory can prevent basic changes, while higher-security applications may require secure chips or back-end verification.
Tamper-evident labels make it more difficult to transfer the tag to another vehicle. However, they cannot completely prevent data cloning.
For sensitive areas, RFID should be combined with license plate or driver identification cameras
Common Problems and Troubleshooting
If your tag doesn’t respond, first check its orientation and position.
If your reader detects tags from another lane, reduce the power.
You may also consider changing the antenna angle.
If the tag starts peeling off, clean and dry the surface first.
Check also the frequency, protocol, chip, and data. Change one thing at a time.
Why Choose JLTRFID as Your Vehicle RFID Tag Supplier?
JLTRFID offers samples, custom RFID vehicle tags, printing, encoding, and bulk ordering options.
You can provide your reader model, country, mounting surface, and lane configuration. This will help JLTRFID recommend a suitable RFID tag.
Conclusion
Choosing the right RFID tag for your vehicle is important to ensure compatibility with the reader and the site.
Be sure to check the mounting surface, frequency, read zone, durability, and security before purchasing any tags. The final step is to test the tags on the actual vehicles.
Frequently Asked Questions About RFID Tags for Vehicles
What RFID tags are used for vehicles?
Windscreen, sticker, hard, on-metal, and active tags.
How far can RFID vehicle tags be read?
Passive UHF tags can be read from several metres away. The maximum distance depends on the system configuration.
Can RFID tags work on metal vehicles?
Yes, but you will need an on-metal tag designed for metal surfaces.
Are RFID vehicle tags waterproof?
Some RFID tags are water-resistant and can withstand outdoor conditions. Check the product specifications before ordering.
How long do RFID vehicle tags last?
The lifespan of the tags depends on their materials, exposure to heat and sunlight, adhesive strength, and daily use.
Do RFID tags require batteries?
Passive RFID tags don’t use batteries. Active and semi-active tags do.
Can RFID vehicle tags be customised?
Yes. You can customize the printing, encoding, size, materials, and packaging.
What is the best RFID tag for fleet management?
UHF RFID tags are suitable for most fleets. The best option depends on the mounting surface and number of readers.
Can RFID tags track a vehicle in real time?
No. They only record the vehicle when it comes near an installed reader.
Where should an RFID windscreen tag be installed?
Install the RFID windscreen tag in the tested area recommended by the supplier.
What is the difference between active and passive vehicle tags?
Active tags have a battery and provide a longer reading range. Passive RFID tags are cheaper and easier to maintain.
Can an RFID windscreen tag be moved to another vehicle?
Only reusable tags can be moved. Tamper-evident tags are unlikely to work after removal.
Can vehicle RFID tags be copied?
Some basic tags can be duplicated easily. You can improve security by using secure chips and system controls.
