Patent ID: 8928471
Filing Date: 2015-01-06
Classification: B60R,G08B

Abstract:
1. A method comprising: 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, the loss of power indicative of tampering with 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, the message indicative of tampering with the onboard device, and the message including an indication of a last known voltage provided by the asset prior to the complete loss of power, and the sending by the onboard device during the complete loss of power.