Device and method for enabling vehicle-mounted terminal to be compatible with active and passive antennas

Abstract

The invention discloses a device and method for enabling a vehicle-mounted terminal to be compatible with active and passive antennas. The device comprises an antenna detection circuit, a microcontroller, a storage and a central processing unit, wherein the antenna detection circuit is used for detecting whether the antenna connected with the antenna detection circuit is an active antenna or a passive antenna and outputting corresponding status information, the microcontroller judges whether the antenna is the active antenna or the passive antenna on the basis of the status information output by the antenna detection circuit and outputs corresponding control information, the microcontroller is connected with the antenna detection circuit, the storage is used for storing configuration files including the passive antenna configuration file and the active antenna configuration file, the central processing unit calls the configuration file corresponding to the antenna from the storage on the basis of control information output by the microcontroller and configures antenna parameters in the configuration file into a radio chip, and the central processing unit is connected with the microcontroller, the storage and the radio chip. According to the device and method for enabling the vehicle-mounted terminal to be compatible with the active and passive antennas, the vehicle-mounted terminal can be compatible with the active and passive antennas at the same time, and forward compatibility of the vehicle-mounted terminal is achieved.

Description

technical field [0001] The invention belongs to wireless communication technology, and in particular relates to a device and method for a vehicle-mounted terminal compatible with active and passive antennas. Background technique [0002] The radio effect of vehicle active antenna products is significantly better than that of passive antenna products, which promotes the gradual switch of vehicle radio antenna products from passive to active antenna products. Antennas are durable goods with little damage over the life of the car. The vehicle-mounted terminal matching the antenna is a fragile product and a product that is quickly upgraded. Generally, there will be a product upgrade every 2-3 years, and the old solution will be discontinued soon, resulting in the possibility that the upgraded vehicle-mounted terminal in the automotive aftermarket cannot be compatible The problem of good matching of passive antenna products. [0003] Traditionally, passive vehicle terminals are...

AI Technical Summary

Problems solved by technology

When the vehicle-mounted terminal is upgraded, the old vehicle-mounted terminal will be stocked in batches to meet the damage of the vehicle-mounted terminal that may occur at any time. This approach will easily lead to the problem of insufficient spare parts or too many spare parts. At the same time, users cannot enjoy the benefits of upgrading. vehicle terminal

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