Erkennung eines Unterbrochenen Drahtes in einem Sicherheitsüberwachungsnetzwerk

Details

Veröffentlichungs-Nr.

EP4770020

Anmeldetag

19. Dezember 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

IPC

H04L12/40

Abstract

Systems and methods directed to electronic communications system expander device. The device includes a differential receiver, an electronic processor, and a broken wire detection circuit including a load resistor selectively connectable to an input of the detection circuit, the circuit being communicatively coupled at the input to a differential communications bus and communicatively coupled at an output to the processor. The processor is configured to transmit a message over the bus to an electronic communications device, detect, at the differential receiver, a message over the bus from the communications device, and connect, in response to detecting the response message, the load resistor to the input of the detection circuit. The processor is further configured to disconnect, during reception of the message from the communications device, the load resistor and determine, based on a signal from the circuit, whether a broken wire condition exists within the bus.

Anmelder

Firma

Robert Bosch GmbH

Land

🇩🇪 Deutschland

Fachgebiete