FUEL DISPENSER TAMPER DETECTION ARRANGEMENT

Methods and systems provide for detecting tampering of a fuel dispenser (10). Power is applied to a valve coil (54) of a fuel dispenser (10). The valve coil (54) is part of a control valve (30) configured to accomplish a gradated fuel flow of the fuel dispenser (10). Current flowing through the valv...

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Bibliographic Details
Main Authors JENNINGS, MICHAEL LAWRENCE, BENTON, GEOFFREY ALAN
Format Patent
LanguageEnglish
Published 17.11.2021
Subjects
ALARM SYSTEMS
BOTTLES, JARS OR SIMILAR CONTAINERS
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISEPROVIDED FOR
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
LIQUID HANDLING
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
OPENING, CLOSING
ORDER TELEGRAPHS
PERFORMING OPERATIONS
PHYSICS
REGULATING
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
TRANSPORTING
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Summary:Methods and systems provide for detecting tampering of a fuel dispenser (10). Power is applied to a valve coil (54) of a fuel dispenser (10). The valve coil (54) is part of a control valve (30) configured to accomplish a gradated fuel flow of the fuel dispenser (10). Current flowing through the valve coil (54) is measured in response to the power being applied to the valve coil (54). The current measurements are compared with predetermined criteria and tampering with the valve coil (54) is determined if the current measurements are sufficiently different than expected. (Figure 3)
Bibliography:Application Number: MY2015PI703151