Method for monitoring a line, and measuring arrangement containing line
AssigneeLEONI Kabel GmbH
InventorsErwin Koeppendoerfer, Markus Schill
Life of this patent
Estimating the term…
Abstract
A method for monitoring a line is done in a simple manner by feeding test pulses and determining any interference on the test pulses by reflected portions of the same test pulses. In a normal state of the line, the measuring pulses have a transit time which is known in advance due to the predetermined length of the line, and the respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses. A deviation of the transit time from a previously known transit time, and a deviation from the normal state are recognized in dependence on the overlay.
Claims12
A method for monitoring a line having a predetermined length and a measuring conductor, which comprises the steps of:
- feeding a plurality of measuring pulses into the measuring conductor, and in a normal state of the line, the measuring pulses have a transit time which is known in advance due to the predetermined length of the line, and respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses;
- monitoring the line and a determination is made as to whether an overlay of the measuring pulses with the respective reflected portions is present at a predetermined measuring point, wherein the measuring pulses and the respective reflected portions being overlaid at the predetermined measuring point in the normal state of the line;
- and
- recognizing, in dependence on the overlay, a deviation of the transit time from a previously known transit time, and a deviation from the normal state.
A measuring configuration, comprising:
- a line having a predetermined length and a measuring conductor;
- a measuring unit configured for monitoring said line, said measuring unit configured to:
- feed a plurality of measuring pulses into said measuring conductor, wherein in a normal state of said line, the measuring pulses have a transit time which is known in advance due to the predetermined length of said line, and wherein respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses;
- and
- monitor said line and a determination is made as to whether an overlay of the measuring pulses with the respective reflected portions is present at a predetermined measuring point, wherein the measuring pulses and the respective reflected portions being overlaid at the predetermined measuring point in the normal state of the line, and depending on the overlay, a deviation of the transit time from a previously known transit time, and a deviation from the normal state, are recognized.
A measuring method, which comprises the steps of:
- providing a line having a measuring conductor and a measuring unit in an on-board network, said measuring unit programmed to:
- feed a plurality of measuring pulses into the measuring conductor, and in a normal state of the line, the measuring pulses have a transit time which is known in advance due to the predetermined length of the line, and respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses;
- monitor the line and a determination is made as to whether an overlay of the measuring pulses with the respective reflected portions is present at a predetermined measuring point, wherein the measuring pulses and the respective reflected portions being overlaid at the predetermined measuring point in the normal state of the line;
- and
- recognize, in dependence on the overlay, a deviation of the transit time from a previously known transit time, and a deviation from the normal state.
Dependencies are inferred from the claim text.