Browse Prior Art Database

Ultrasonic Switch/ alarm for POS Systems

IP.com Disclosure Number: IPCOM000045497D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Schall, TE: AUTHOR [+2]

Abstract

This article describes potential uses for ultrasonic range-finding transducers in point of sale (POS) terminals. The use of such transducers for energy conservation and security purposes is discussed.

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This is the abbreviated version, containing approximately 81% of the total text.

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Ultrasonic Switch/ alarm for POS Systems

This article describes potential uses for ultrasonic range-finding transducers in point of sale (POS) terminals. The use of such transducers for energy conservation and security purposes is discussed.

It is proposed that ultrasonic range-finding transducers be incorporated into POS terminals. The transducers could be used to automatically initiate a power- up sequence when a person approaches and a power-down sequence when the last person leaves the terminal area. Since POS terminals are often idle during normal business operations, automatic power-up/down could provide significant energy savings.

For security reasons, the POS terminal could be programmed to sound an alarm if an approaching person fails to perform a predetermined log-on procedure within a certain period of time after being detected. Similarly, the terminal could provide an alarm if an operator leaves the area without properly securing the terminal cash drawer.

The transducer set points could be adjusted under program control. During normal business hours, the transducer set point would be adjusted so that power or alarm functions would be initiated only when a person came close to the terminal. Outside of normal business hours, the transducer set point could be increased to initiate an alarm function when a person was sensed at a considerable distance from the terminal. Since retail establishments typically include terminals at distributed locations, setti...