1. Baja SAE Technical Bulletin
2018-2: Endurance Backup Lap Counting
using RFID Tags

2. Introduction This bulletin will cover:
Technology improvements being made for counting Endurance event laps
Information about the RFID tags that we will use
How to mount your tag on your car and when to have completed that

3. What is Changing?
We’re working to improve the reliability of Endurance lap counting
The MyLaps Transponder system works great, except when:
Teams forget to charge their transponder adequately before the event
Transponder falls off during Endurance or stops being picked up
Scoring detects laps for a non-registered transponder that we cannot track down
This year the NTI scoring group will be utilizing both the MyLaps Transponder system AND a secondary RFID- based system (in addition to manual lap counters) to get the most accurate lap counts possible during the Endurance event

4. What Does My Team Need To Do?
At your first competition this year, SAE will issue your team an RFID tag. Your team will keep this tag and use it at ALL future competitions
This tag must be installed, facing outward, on the Right side RHO adjacent to point BR
This tag must be installed on your car at the Brake Check area and will be associated with your car at Brake Check.
RFID Tag Area

5. How Do We Mount the RFID Tag?
Acceptable mounting methods:
Bolted to the frame member
Riveted to the frame member
Zip tied to the frame member
What is the required orientation?
The tag needs to be close to “horizontal”(The axis formed by connecting the the mounting holes must be parallel to the ground)
The tag needs to “face” outward, away from the center line of the car
Tag may not be covered by any material, especially metallic or conductive materials that would interfere with its ability to be read
Dimensions in mm

6. Can We Customize Our RFID Tag?
Teams are permitted to paint their tag if desired
All other modifications are prohibited

7. Summary
We’re adding RFID Tag lap counting to our conventional methods to improve accuracy
Especially in cases that render Transponders unable to help us
Get your team’s tag at Brake Check
Mount it horizontally, on driver’s right side RHO, facing outward
Install it at Brake Check
KEEP the tag and have it installed for all future competitions