Detection system and detection method of vehicle-mounted TBOX external antenna

Abstract

The invention belongs to the technical field of automobile auxiliary driving, and particularly relates to a vehicle-mounted TBOX external antenna detection system which comprises a vehicle-mounted TBOX device and an external antenna device connected with the vehicle-mounted TBOX device. The vehicle-mounted TBOX device comprises an MCU control module, a signal diagnosis module, a power supply module, an antenna switching module and an onboard antenna module, wherein the signal diagnosis module, the power supply module and the antenna switching module are connected with the MCU control module, and the onboard antenna module is connected with the antenna switching module. The antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the onboard antenna module or the external antenna device. The invention provides a detection system of a vehicle-mounted TBOX external antenna, which not only can effectively diagnose the abnormal state of the external antenna device, but also can effectively ensure information interaction between the system and external wireless communication, ensure that an eCall function in the vehicle-mounted TBOX device can be available at any time, and avoid the situation that when a vehicle is in danger, the vehicle is not damaged. And the emergency call can not be automatically dialed.

Description

technical field [0001] The invention belongs to the technical field of automobile auxiliary driving, and in particular relates to a detection system and a detection method for a vehicle-mounted TBOX external antenna. Background technique [0002] At present, the TBOX system installed in the vehicle is basically connected to the 4G antenna of the vehicle through the FAKRA antenna connector to realize the information exchange of wireless communication. This way of using the only external antenna, once the connection between the external antenna and the system is abnormal or the external antenna itself is abnormal and cannot communicate normally, TBOX will lose its role as a communication carrier for eCall telephone emergency rescue, especially in the event of a major emergency. In the event of an accident, if the emergency call cannot be made automatically, it will not only delay the progress of rescue, but also cause loss of life or property in serious cases. Contents of th...

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Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the invention provides a detection system for a vehicle-mounted TBOX external antenna. When the external antenna device is abnormal, it can not only effectively detect that the abnormal state of the external antenna device is caused by the external antenna. The device itself is still caused by the external environment, and it can also automatically switch to the state connected to the onboard antenna module, effectively ensuring the information exchange between the system and the external wireless communication, ensuring that the eCall function in the vehicle TBOX device is available at any time, avoiding When the vehicle is in danger, the emergency call cannot be dialed automatically, which delays the progress of rescue and even causes loss of life or property

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