Method for monitoring lines and system with a monitoring device

DE102010003353B4Active Publication Date: 2026-03-19ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2010-03-26
Publication Date
2026-03-19

AI Technical Summary

Technical Problem

Existing methods for monitoring electrical lines in systems like fire alarm systems fail to account for the influence of consumers, leading to inaccurate resistance measurements and potential false or delayed fault detections due to varying load characteristics.

Method used

A method that compensates for the influence of consumers with resistive (R) and power (P) characteristics by measuring and adjusting consumer parameters, allowing accurate determination of line resistance during operation using corrected equations.

Benefits of technology

Enables precise detection of slowly developing line resistance changes, preventing system impairments by reducing false fault reports and ensuring timely fault indications.

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Abstract

Method for monitoring power supply lines (16) in a system in which at least one electrical consumer (10) is connected to a central unit (12) via the power supply lines (16) and is supplied with voltage, in which a test signal is applied to the power supply lines (16) by means of a monitoring device (22) provided at one end of the power supply lines (16) in order to determine an electrical resistance of the power supply lines (16), wherein influences of at least one consumer (10) with R-characteristic and / or P-characteristic are compensated.
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Citation Information

Patent Citations

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    DE102005060123A1

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    EP1855261A1

  • Active line terminator module

    EP2093737A1

  • Monitoring device for an alarm system, alarm system, and method for monitoring said alarm system

    WO2009087169A1