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SERA Hare Scrambles Scoring Information

Answers to these questions:

1. How does SERA score Hare Scrambles?

2. What is a transponder?

3. How do I carry the transponder?

4. How much does the transponder it cost?

5. What are the SERA numbers?

6. Other important information.

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How does SERA score Hare Scrambles?

Answer:

SERA is now using RFID (Radio Frequency Identification). The system is custom software run on a PC that reads transponder information when the rider enters the scoring tent.

The PC turns the off the RED stop light and turns on the GREEN light for 0.8 seconds. The PC also calculates the rider’s position in the class and displays the rider’s number and position on a sign.

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Scoring Tent

Top view (bird’s eye)

Sign with number and position

Rider entry

RFIDAntenna

RF field

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What is a transponder?

Simple Answer:

The electronic doo-hickey that carries the rider’s number. It looks like a plastic cigar case.

Better Answer:

A transponder is an electronic device that carries a number. We use the number to identify the rider. The transponder does not have a battery. When the rider enters the antenna RF field the transponder charges up and sends the number internal to the transponder to the PC.

The transponder must be within the RF field for 0.1 seconds. It then can send the number to the RFID reader. This all takes about 0.2 seconds. The computer then processes the data and turns the light green and puts the rider number and position within his class on the sign.

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How do I carry a transponder?

The best place to carry the transponder is on the front/center of your chest protector.

The transponder must not be covered by any metal. You may cover the transpoder with tape, cloth or other non-metallic items.

The suggested method to attach the transponder to the chest protector is with zip ties. The scoring team can then still read your number in case the transponder fails.

Please put your transponder number on your left number plate as a minimum. It is suggested that you place the number on all number plates. SERA will still issue a bar coded number for the left front of your helmet. The system has the capability to read bar codes, transponders and manual entry.

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How much does the transponder cost?

Answer:The transponder cost the rider $15. If you do not wish to keep the transponder, then return it to the sign up area after the race and you will receive $10.

The transponder can be reprogrammed at any time. If you change classes then the transponder must be reprogrammed for your new class.

The transponder does not wear out. You only need to buy one.

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SERA numbers

Class No. Range Class No. RangeAA –Expert 1-49 Senior 400-499201-Open A 50-99 Super Senior 700-79986-200 A 100-149 201-Open C 1200-1399Veteran A 150-199 86-200 C 100-1199201-Open B 200-299 Junior 550-59986-200 B 500-549 Beginner 1400-1599Veteran B 300-399 Masters 600-699

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Important Information

1. The rider MUST wait for the light to turn green before leaving the scoring tent.

2. The scoring tent has steel fence posts protecting the tent and workers. If you hit the posts they hurt, if you hit the workers, they might hit back.

3. The sign position is only for reference. The printed results at the end of the race are the only official results.

4. All scoring related issues must be resolved during the protest period.