Solar powered annunciator
First Claim
1. An actuator and annunciator comprising:
- a microprocessor-based fault detection unit responsive to a plurality of fault condition sensor inputs;
a fault condition identification storage element connected to said fault detection unit;
a display connected to said fault condition identification storage element;
a photoelectric power supply connected to said fault condition identification storage element;
a backup power supply source connected to said photoelectric power supply wherein said backup power supply includes a battery and a battery charger connected to said battery and to said photoelectric power supply;
a voltage sensor connected to said backup power supply source;
an auxiliary power supply connected to said fault condition identification storage element;
a switch, controlled by said voltage sensor, connected between said auxiliary power supply and said fault condition identification storage element, wherein said switch and said voltage sensor are configured to disconnect said auxiliary power supply from said fault condition identification storage element when a voltage of said backup power supply exceeds a predetermined level and to connect said auxiliary power supply when said voltage falls below said pre-determined level; and
means for isolating said auxiliary power supply from said photoelectric power supply and said backup power supply to allow the photoelectric power supply to charge the battery and preventing the auxiliary power supply from charging the battery.
2 Assignments
0 Petitions
Accused Products
Abstract
A combination shut-down trigger and annunciator may be advantageously powered by a photoelectric power supply. The shut down trigger and annunciator can include a fault detection unit responsive to a plurality of fault condition sensor inputs. A fault condition identification storage element is connected to the fault detection unit and a display is connected to the fault condition identification storage element. The photoelectric power supply is then connected to the fault condition identification storage element. The photoelectric power supply may be provided with a battery backup system for use when there is insufficient light incident on a photo cell to power system. The battery backup may be a rechargeable battery in the power supply can include a battery charger. The configuration of the power supply, including the photocell battery charger and backup battery allows the system to operate without drawing power from an engine CD ignition power supply.
37 Citations
21 Claims
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1. An actuator and annunciator comprising:
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a microprocessor-based fault detection unit responsive to a plurality of fault condition sensor inputs; a fault condition identification storage element connected to said fault detection unit; a display connected to said fault condition identification storage element; a photoelectric power supply connected to said fault condition identification storage element; a backup power supply source connected to said photoelectric power supply wherein said backup power supply includes a battery and a battery charger connected to said battery and to said photoelectric power supply; a voltage sensor connected to said backup power supply source; an auxiliary power supply connected to said fault condition identification storage element; a switch, controlled by said voltage sensor, connected between said auxiliary power supply and said fault condition identification storage element, wherein said switch and said voltage sensor are configured to disconnect said auxiliary power supply from said fault condition identification storage element when a voltage of said backup power supply exceeds a predetermined level and to connect said auxiliary power supply when said voltage falls below said pre-determined level; and means for isolating said auxiliary power supply from said photoelectric power supply and said backup power supply to allow the photoelectric power supply to charge the battery and preventing the auxiliary power supply from charging the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification