Communications: electrical – Land vehicle alarms or indicators – External alarm or indicator of movement
Patent
1990-11-30
1994-06-07
Hofsass, Jeffrey
Communications: electrical
Land vehicle alarms or indicators
External alarm or indicator of movement
340670, 181171, B60Q 154
Patent
active
053193520
ABSTRACT:
The speed of in-plant vehicles such as forklift trucks and the like is monitored to provide for the lighting of a warning light where a first speed threshold is reached, the sounding of a horn when a second speed is reached, and for the disabling of the vehicle on the sustaining of the higher speed for a predetermined interval of time. This speed monitoring approach generates a signal having an intermittent monitor output corresponding with the speed of the vehicle and which exhibits a period of lessening duration in corresponding with increasing speeds. Timing of the occurrence of these signals is employed with an accumulator based logic to establish vehicle speed. To avoid apparatus reaction to noise based signals, a select number of occurrences of apparent speed excursions are required before the horn or lamp are activated. Remote supervisory resetting of the monitoring system following the occurrence of a latched warning output is provided through an IR based code transmitting and receiving arrangement.
REFERENCES:
patent: 2825048 (1958-02-01), Jaynes
patent: 3160869 (1964-12-01), Rambo
patent: 3203501 (1965-08-01), Carter
patent: 3748641 (1973-07-01), Hartung
patent: 3859629 (1975-01-01), Komiyama
patent: 3878915 (1975-04-01), Purland
patent: 3879705 (1975-04-01), Binder
patent: 3919688 (1975-11-01), Schick
patent: 3919689 (1975-11-01), Despain
patent: 4031527 (1977-06-01), Yanagishima
patent: 4101870 (1978-07-01), Ekman
patent: 4115757 (1978-09-01), Blahunka
patent: 4124840 (1978-11-01), Kobayashi
patent: 4136331 (1979-01-01), Cullen
patent: 4229727 (1980-10-01), Gilhooley
patent: 4265337 (1981-05-01), Dammeyer
patent: 4348663 (1982-09-01), Yanagishima
patent: 4556861 (1985-12-01), Hyodo et al.
patent: 4598797 (1986-07-01), Schultz
patent: 4631515 (1986-12-01), Blee et al.
patent: 4746912 (1988-05-01), Clifford et al.
patent: 4800377 (1989-01-01), Slade
patent: 4849735 (1989-07-01), Kirtley et al.
Muscarella Joseph F.
Robertson John A.
Hofsass Jeffrey
Telesis Controls Corporation
LandOfFree
Speed monitoring of in-plant, operator controlled vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Speed monitoring of in-plant, operator controlled vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed monitoring of in-plant, operator controlled vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-795825