Process, device and taximeters for avoiding fraud on the...

Details Process, device and taximeters for avoiding fraud on the... Process, device and taximeters for avoiding fraud on the...

G - Physics

07

B

354/34

G07B 13/02 (2006.01) G01R 19/165 (2006.01)

Patent

CA 1167164

ABSTRACT OF THE DISCLOSURE The present invention relates to a process, devices and taximeters for avoiding fraud on the price indicated by the luminous display means of an electronic taximeter, wherein a taximeter comprising a luminous display means and a computing unit is supplied with d.c. voltage V by the battery of the vehicle. A comparator compares the voltage V with a reference voltage Vr and emits a constant voltage Vc if V < Vr and a zero voltage if V > Vr. A device compares the dura- tion during which V remains lower than Vr with a reference duration and returns the computing unit and the display means to zero each time the reference duration is exceeded. One application of the invention is the construction of electronic taximeters which are difficult to use fraudulently.

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