Process and device for avoiding fraud on a taxi equipped with a taximeter or on a truck equipped with a chronotachograph

摘要: An electronic device, placed in an impregnable envelope and electrically connected between sensor a taximeter or chronotachograph, tests at least one of the internal characteristics active dipole present two output wires electrical signal its terminals. The test values are then compared with several reference values. anti-fraud action is triggered event non-conformity One includes preventing functioning chronotachograph.