A method for preventing circumvention of a intoxication test includes defining a detection time envelope with a first sensor activated in response to the presence of a human test subject proximate the first sensor and sensing with a second sensor for a change from an ambient condition caused by the presence of the human test subject proximate the second sensor. The intoxication test is validated when a change from the ambient condition is detected by the second sensor during the time envelope defined by the first sensor.
ANTI-CIRCUMVENTION APPARATUS AND METHODS FOR USE IN SOBRIETY TESTING SYSTEMS
BETRUGSVERHINDERUNGSVORRICHTUNG UND -VERFAHREN ZUR VERWENDUNG IN NÜCHTERNHEITSTESTSYSTEMEN
APPAREIL ET PROCÉDÉS ANTI-CONTOURNEMENT À UTILISER DANS LES SYSTÈMES DE TEST DE LA SOBRIÉTÉ
2020-12-02
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
Anti-circumvention apparatus and methods for use in sobriety testing systems
European Patent Office | 2017
|ANTI-CIRCUMVENTION APPARATUS AND METHODS FOR USE IN SOBRIETY TESTING SYSTEMS
European Patent Office | 2021
|Online Contents | 1997