Embedded system
First Claim
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1. An embedded system, comprising:
- a computer;
a watchdog; and
an electrical power supply, the computer being electrically connected to the power supply, the power supply being connected in terms of measurement to the watchdog;
wherein the watchdog is configured in such a way that the watchdog measures a power consumption of the computer, ascertains a first power signature on the basis of the power consumption, carries out a comparison of the first power signature with a specified second power signature, and introduces specified measures if the comparison fails,wherein the watchdog is electrically connected to the power supply,wherein the computer includes a microcontroller, a random-access memory, and data transmission paths, the transmission paths connect the microcontroller at least to the random-access memory, and the system is configured in such a way that the power consumption includes a first portion, measured between the power supply and the random-access memory, and a second portion, measured between the power supply and the microcontroller, and the watchdog is electrically connected to the power consumption of the first and second portions.
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Abstract
An embedded system wherein the system includes a computer, a watchdog, and an electrical power supply. The computer is electrically connected to the power supply. The power supply is connected in terms of measurement to the watchdog. The watchdog is configured in such a way that the watchdog measures a power consumption of the computer, ascertains a first power signature on the basis of the power consumption, carries out a comparison of the first power signature with a specified second power signature, and introduces specified measures if the comparison fails.
14 Citations
8 Claims
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1. An embedded system, comprising:
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a computer; a watchdog; and an electrical power supply, the computer being electrically connected to the power supply, the power supply being connected in terms of measurement to the watchdog; wherein the watchdog is configured in such a way that the watchdog measures a power consumption of the computer, ascertains a first power signature on the basis of the power consumption, carries out a comparison of the first power signature with a specified second power signature, and introduces specified measures if the comparison fails, wherein the watchdog is electrically connected to the power supply, wherein the computer includes a microcontroller, a random-access memory, and data transmission paths, the transmission paths connect the microcontroller at least to the random-access memory, and the system is configured in such a way that the power consumption includes a first portion, measured between the power supply and the random-access memory, and a second portion, measured between the power supply and the microcontroller, and the watchdog is electrically connected to the power consumption of the first and second portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification