PROBLEM DETECTION IN CABLE SYSTEM

摘要

Devices (1) for detecting problems in cable systems with cables (4) and loads (5-8) comprise first circuits (11) for providing first signals to the cables (4), second circuits (12) for measuring parameters of second signals that are responses to the first signals, and third circuits (13) for detecting the problems in response to changes in values of the parameters. The loads (5-8) may comprise mutually parallel loads each showing a capacitive behavior. The problems may comprise interruptions in the cables (4) that result in changes in capacitances of the cable system and in the changes in the values of the parameters. The devices (1) may further comprise fourth circuits (14) for discharging the capacitances, fifth circuits (15) for deriving positions of the problems from the changes in the values of the parameters, and sixth circuits (16) for feeding at least one other circuit (11-15) and/or for activating at least one other circuit (11-15) in response to cable system information and/or timing information.

主权项

1. A device for detecting a problem in a de-activated cable system, the cable system comprising a cable and loads connected to the cable, the device comprising
a first circuit for providing a first signal to the cable, a second circuit for measuring a parameter of a second signal, the second signal being a response to the first signal, and a third circuit for detecting the problem in the cable system in response to a change in a value of the parameter of the second signal, and a fifth circuit for deriving a position of the problem from the change in the value of parameter of the second signal.