Antennendetektionsschaltung und -Verfahren sowie Bordvorrichtung und Fahrzeug

Details

Veröffentlichungs-Nr.

EP4718086

Anmeldetag

19. Februar 2024

Veröffentlichung

2. Januar 2025

Rechtsraum

EP

IPC

G01R29/10

Abstract

An antenna detection circuit and method, an in-vehicle device, and a vehicle are provided, relate to the field of communication technologies, and are used to improve antenna detection accuracy and device safety. The antenna detection circuit includes a controller (10), a switch circuit (20), and an in-position detection circuit (30), an output end of the controller (10) is coupled to a control end of the switch circuit (20), an input end of the switch circuit (20) is configured to be coupled to a power supply, an output end of the switch circuit (20) is coupled to a first input end of the in-position detection circuit (30), and a second input end of the in-position detection circuit (30) is configured to be coupled to an antenna. The controller (10) is configured to control the switch circuit (20) to be turned on or turned off. The switch circuit (20) is configured to turn on or turn off a power supply voltage for supplying power to the in-position detection circuit (30). The in-position detection circuit (30) is configured to: receive the power supply voltage, detect a coupling point voltage of the antenna, and perform two-stage comparison and amplification on the coupling point voltage based on the power supply voltage, to output a first indication signal, where the first indication signal indicates whether the antenna is in position.

Anmelder

Firmen

Yinwang Intelligent Technologies Co., Ltd.
Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Land

🇨🇳 China

Fachgebiete