RFID System Identifies Drunk Customers before They Drive

Pee-Analyzer-Drunk-driving-RFID-blogZouk, a popular Singapore nightclub, has trialed an RFID system which can warn parking attendants not to hand over car keys to drunk customers, in order to prevent alcohol-related traffic accidents.

The solution is known as the Pee Analyzer, which aims at making it easier to ascertain an inebriated customer’s blood-alcohol level before he begins driving. The trial focused only on men, the company reports, since they account for 90% of drunk-driving arrests in Singapore.

“Almost every drunk driver thinks he is sober enough to drive, so we decided to catch drunk drivers even before they started driving,” says Sofie Chandra, head of Zouk’s business development.

At Zouk Singapore, two urinals were equipped with devices that measure the blood-alcohol content of an individual’s urine.

During the pilot, when a male customers arrived at the club, he was provided with a valet ticket containing an embedded passive UHF RFID transponder. As the customer used the urinal throughout the evening, the sensor in the toilet determined the amount of alcohol in his urine. If the number exceeded the legal limit, the sensor transmitted a prompt via a wired connection to a computer, which, in turn, wrote that information to the customer’s ticket. The sensor then instantly reset, thereby allowing consecutive readings.

For those possibly unfit to drive, the system displayed an alert on a video monitor above the urinal, stating: “You may have had one too many to drive. Call a cab, or use our drive home service.”