Automatic wake-up circuit arrangement for a single wire multiple

Details Automatic wake-up circuit arrangement for a single wire multiple Automatic wake-up circuit arrangement for a single wire multiple

1989-10-30

1990-10-23

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340518, 340525, 340459, 340461, 36443111, 371 291, G08B 2500

Patent

active

049655507

ABSTRACT:
Continuous status monitoring of a plurality of switches and smart sensors associated with the switches, wherein each sensor is connected to a separate single point in a single wire bus is a affected by a smart sensor multiplex arrangement employing an automatic wake-up circuit. The automatic wake-up circuit allows activation of any switch of a group of high priority switches to automatically take a microcontroller out of a wait mode and causes it to go into a POWER-ON mode. In the POWER-ON mode, power routes all circuits in the entire system and then a polling of all the switches and sensor modules is performed.

REFERENCES:
patent: 3927404 (1975-12-01), Cooper
patent: 4677308 (1987-06-01), Wroblewski et al.
patent: 4839530 (1989-06-01), Greenwood

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