| 摘要 |
An arrangement for detecting and indicating the level of the contents of a container (1), whereby a detecting device (2) is fixedly mounted in the container (1), the detecting device includes light-emitting elements (8-11) and light-sensitive elements (12-15) at at least one predetermined level (6,7), the light-emitting elements (8-11) are adapted to emit light in a plane parallel with the bottom of the container in at least two different directions, the light-sensitive elements (12-15) are adapted to sense emitted light that has been reflected by the container contents, when detecting said reflected light the light-sensitive elements (12-15) function to send an electric signal to an indicating device (16) which includes a transmitter (17) for a mobile telephone system, and the indicating device (16) is adapted to send information that includes the identity of the container (1) via a telephone system to a central computer unit (18) separate from the container (1). <IMAGE> |
