Detection tool and detection method for vehicle-mounted 3G/4G communication module

Abstract

The invention discloses a detection tool and a detection method for a vehicle-mounted 3G / 4G communication module. The tool and the method are used to detect the vehicle-mounted 3G / 4G communication module. The detection tool comprises an input module which is composed of a keypad used to enter manually the specified number and buttons used to choose detection items; a configuration module used to configure a default voice number, a default website, a dialing attribute and com ports; a judgment module used to detect the number of the com ports, which can be used to establish the communication with the vehicle-mounted 3G / 4G communication module, in a vehicle-mounted navigation system, wherein the judgment module is also used to determine whether the number of the available com ports is one or two, and if not, the vehicle-mounted 3G / 4G communication module is regarded as not being normally started, an error is reported and a prompt message is output, and if so, the vehicle-mounted 3G / 4G communication module is regarded as being normally started; and a detection module used to carry out the corresponding detection according to the chosen detection items after the vehicle-mounted 3G / 4G communication module is normally started and output the corresponding detection results. According to the invention, the detection efficiency is improved and the operation is convenient.

Description

technical field [0001] The invention belongs to automotive electronics technology, and in particular relates to a detection tool and a detection method for a vehicle-mounted 3G / 4G communication module. Background technique [0002] Automobiles have become an important part of human's daily life, and the development of in-vehicle entertainment systems is also in full swing, even to a feverish stage. A variety of new car entertainment audio-visual products are constantly emerging. With the emergence of smart phones, car products have been greatly impacted. Therefore, the research and development of new car entertainment products with 3G / 4G communication modules is imperative. With the popularization of 4G network and the rapid development of 3G / 4G communication module, 3G / 4G communication module can realize parallel voice channel and data channel. Due to its small size and low power consumption, the 3G / 4G communication module can be built into navigation products. After the b...

AI Technical Summary

Problems solved by technology

[0003] After the 3G / 4G communication module is powered on and started, it communicates with the vehicle host through the com port. However, in the research and development stage of the vehicle navigation product, the debugging of the 3G / 4G communication module requires the PC device to be connected through a serial cable and then send AT commands to perform related voice calls. , dial-up Internet access and other functions, and the switching steps of voice channel and data channel are cumbersome to operate, especially on the touch screen with a small interface to send AT commands and set dial-up attributes are very inconvenient

In addition, if a new 3G / 4G communication module is replaced, the required serial cable must be remade, which is very time-consuming and laborious, and reduces the efficiency of research and development

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