Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-12-01
1982-11-16
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
180272, G08B 2100
Patent
active
043597254
ABSTRACT:
The electric power consumption of a vehicle having its own power source and travelling on an unbounded path is monitored; and, when this power consumption remains substantially constant for more than a predetermined period of time, the invention sends a signal to the driver, to which he must respond with predetermined accuracy and in a predetermined period of time. Failing this, the invention gives the operator a warning display and repeats the test which, if failed repeatedly, results in the equipment giving an alarm perceptible to those outside the vehicle, by the horn and/or flashing lights. In addition, the invention can preserve a record of the driving conditions and test results and can provide coded access to operation of the vehicle to prevent unauthorized entry. The invention can also provide a test of alertness which the driver must pass before actuation of the vehicle can be initiated.
REFERENCES:
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patent: 3654599 (1972-04-01), Sepper
patent: 3794968 (1974-02-01), Hill
patent: 3811116 (1974-05-01), Takeuchi et al.
patent: 3922599 (1975-11-01), Steingroever et al.
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Balogh Gyorgy
Csenki Laszlo
Hajnal Miklos
Lovanyi Istvan
Vajta Laszlo
Elektromobil Elektroes Jarmuipari Szovetkezet
Swann III Glen R.
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