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TI technology enables Truescorestaekwondo electronic scoring system

Company:Truescore Inc.

Challenge:Taekwondo, a martial arts sport and

Olympic event, is traditionally scoredby judges. To award a point, judges

must determine not just i a blow was

landed, but i it had sufcient impact.

The games blazing speed makes

this highly subjective. Truescore Inc.

decided to improve that with an elec-

tronic sensing and scoring system.

Solution:Using data rom an innovative

multi-sensor system embedded in a

protective vest, Truescores sophis-

ticated algorithms are executed byTexas Instruments (TI) ultra-low-power

MSP430 16-bit microcontrollers that

also handle baseband processing,

creating a highly reliable system that

is more accurate than human judges.

Truescores system also includes TIs

CC2520 ZigBee IEEE 802.15.4 RF

transceiver, which provides a robust

radio requency (RF) link despite inter-

erences in the 2.4-GHz band, which

are resolved with requency agility.

Customer beneft:The electronic system is more

accurate than human judges and

eliminates the subjectivity that

creates contention. Truescores third-

generation product also attenu-

ates the RF intererence common in

competition venues. Using TIs chips,

evaluation kits and technical support,

Truescore had a working prototype in

less than two months.

The challenge

When Truescore ramped up to design

an electronic judging system or

the sport o Taekwondo in which

contestants score points by landing

oot or fst blows to an opponents

torso or head the design team was

presented with an impressive porto-

lio o unusual and unique engineer-

ing challenges. The impact rom a

legal strike must be substantial, or

example, so points are not awardedor glancing blows, partially blocked

kicks, head butts, or elbow contact.

The electronic system had to be ast,

without compromising the agility o

the competitors. It also had to be ac-

curate, lightweight, inexpensive and

battery efcient - the battery must last

or at least 20 hours o continuous

use beore a recharge.

The application

Truescore saw a ew dierent op-

portunities to build rom. Contestants

are required to wear a protective vest,

called a hogu, along with headgear,

gloves and ootgear, all o which could

accommodate an ultra-compact sys-

tem o sensors, radio, batteries and

a microcontroller. Although action is

lightning ast (potentially

our kicks per

secondand

TI has been very instrumental in helping us to move quickly without having tospend months on a learning curve. When we had to evaluate some eature ordesign concept, they were right there. Ive worked with TI or 10 years and

technical support has always been phenomenal. In the beginning, when I frst

proposed my application, they did not ask questions like whats your volume?

Instead, I had the kind o response I would normally expect rom a small com-

pany that really wants to win your business, Jin Song, Truescore CEO

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