Patent ID: 11961384
Assignee: ENOCEAN GMBH
Field: Measurement (Instruments)
Classification: CPC G  B  H | IPC B  G  H

Claim 0:
1. An apparatus for detecting the activity of persons or the state of infrastructures or objects influenced by persons by means of acceleration measurement,
wherein the apparatus comprises at least one acceleration sensor for measuring an acceleration,
wherein the acceleration sensor is set up to react to a preset threshold value of a measured acceleration and to trigger at least one of the following actions when the threshold value is exceeded:
data storage,
modification of a counter or
transmission of a data telegram by radio, and

wherein the apparatus comprises an energy converter for converting a primary energy into electrical energy for operating the apparatus or the acceleration sensor, wherein the energy converter is arranged to obtain the primary energy independently of an energy resulting from a measured acceleration,
wherein the apparatus comprises an energy storage device adapted to store the electrical energy converted from the primary energy via the energy converter, wherein the energy storage device comprises a first energy storage and a second energy storage, wherein the first energy storage has a higher storage capacity than the second energy storage and wherein the second energy storage has a lower internal resistance than the first energy storage, and wherein the first energy storage and the second energy storage are arranged to store the electrical energy converted from the primary energy via the energy converter,
wherein the first energy storage and the second energy storage are connected via one or more diodes such that electrical energy can be transferred from the first energy storage to the second energy storage, but not from the second energy storage to the first energy storage.