Importance

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Abstract

The object of the invention is to provide a secure detachable utility monitoring device to be appended to a utility metering apparatus for controlling at least one utility usage consumption. This is achieved thanks to a detachable metering monitoring device to be connected with a utility meter for controlling at least one utility consumption metered by said utility meter comprising:

means to acquire a utility consumption value metered by said utility meter,a first memory to store at least a unique identifier ID and a personal key, both pertaining to said device,means to generate a cryptogram from information data comprising at least the utility consumption value, said cryptogram being encrypted with said personal key,means to generate an information message including at least said cryptogram and the unique identifier ID,means to send the information message to a remote management center.

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First Claim