Traffic event recording method and apparatus

Details Traffic event recording method and apparatus Traffic event recording method and apparatus

1997-02-13

1998-02-10

Mullen, Thomas

Communications: electrical

Vehicle detectors

With camera

340907, 340916, 340902, 340903, 340905, G08G 1017

Patent

active

057173915

ABSTRACT:
A system for determining the condition of a traffic controlling semaphore has an audio sensor mounted in the vicinity of an intersection so the sound level is monitored at all times. A computer is placed into the semaphore controller, and the computer receives the audio signal, a time signal, and a signal representing the status of the semaphore. When a sound is detected above a certain minimum level, which is above the usual traffic noise, a record is generated by the computer, and recorded in permanent form, perhaps printed on paper. The record includes the date, time, and status of the semaphore.

REFERENCES:
patent: 3582620 (1971-06-01), Noetinger
patent: 4023017 (1977-05-01), Ceseri
patent: 4241326 (1980-12-01), Odom
patent: 4578665 (1986-03-01), Yang
patent: 4638289 (1987-01-01), Zottnik

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