| 摘要 |
PCT No. PCT/FR90/00470 Sec. 371 Date Feb. 10, 1992 Sec. 102(e) Date Feb. 10, 1992 PCT Filed Jun. 26, 1990 PCT Pub. No. WO91/00581 PCT Pub. Date Jan. 10, 1991.A device for estimating the general behavior of a group of persons, each person being the driver of a moving body. The invention relates to a device estimating comparatively the behaviors by measuring the average speeds of a same group or more generally of different groups in one location or at different locations. The device is comprised of a casing concealable inside an envelope including a display unit programmable by the threshold of the selected speed, and alternatively, two counters, one indicating the number of moving bodies exceeding the threshold value and the other counter indicating the total number of moving bodies. The components are a Doppler sensor, an amplification stage, a logic stage for the control of the counters, and a power source (i.e. batteries). The invention relates to a device and method for the measurement of average speeds of road users in relation to traffic security, to the measurement of average speeds of athletes with or without mechanical equipment, and to the measurement of instantaneous speeds, of lengths of the bodies and to their classification in relation to rolling bodies on roads.
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