METHODS AND SYSTEMS RELATED TO REMOTE POWER LOSS DETECTION
First Claim
1. A method comprising:
- charging a supercapacitor of an onboard device coupled to an asset, the charging from a source of power of the asset; and
thendetecting tampering with the onboard device by a complete loss of power from the source of power, the detecting by the onboard device; and
after the complete loss of powerutilizing power from the supercapacitor to send a message by wireless transmission, the message including an indication of a last known voltage provided by the source of power prior to the complete loss of power.
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Accused Products
Abstract
Remote power loss detection. At least some of the example embodiments are methods including: tracking location of an asset by an onboard device mechanically coupled to the asset, the onboard device electrically coupled to a source of power of the asset, and the onboard device receiving power from the asset; charging a supercapacitor coupled to the onboard device; and then detecting a complete loss of power provided to the onboard device, and the detecting by the onboard device; and after the complete loss of power sending a message by wireless transmission, the sending based on power derived from the supercapacitor, and the message including an indication of a last known voltage provide by the asset prior to the complete loss of power, and the sending by the onboard device after the complete loss of power.
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15 Claims
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1. A method comprising:
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charging a supercapacitor of an onboard device coupled to an asset, the charging from a source of power of the asset; and
thendetecting tampering with the onboard device by a complete loss of power from the source of power, the detecting by the onboard device; and
after the complete loss of powerutilizing power from the supercapacitor to send a message by wireless transmission, the message including an indication of a last known voltage provided by the source of power prior to the complete loss of power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An onboard device configured to couple to an asset, the onboard device comprising:
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a processor; a wireless interface coupled to the processor; a global position receiver coupled to the processor; a means for providing power coupled to the processor; a memory coupled to the processor, the memory storing a program that, when executed by the processor, causes the processor to; receive signals indicative of a location of the onboard device; detect a complete power loss to the onboard device; and
thensending a message by way of the wireless interface, the sending powered by the means for providing power, and the message including an indication of a last known voltage provided by the asset prior to the complete power loss. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification